BENZIMIDAZOLONE ANTIVIRAL AGENTS CROSS REFERENCE TO RELATED APPLICATION This application claims the benefit of U. S. Provisional Application Serial Number 60/235, 804 filed on September 27,2000.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention concerns antiviral compounds, their methods of preparation and their compositions, and use in the treatment of viral infections. More particularly, the invention provides benzimidazolone derivatives for the treatment of respiratory syncytial virus infection.

2. Background Art Respiratory syncytial virus (RSV) is the leading cause of serious lower respiratory tract infection in infants, children, elderly and immunocompromised persons. Severe infection of the virus may result in bronchiolitis or pneumonia which may require hospitalization or result in death. (JAMA, 1997,277,12).

Currently only Ribavirin is approved for the treatment of this viral infection.

Ribavirin is a nucleoside analogue which is administered intranasally as an aerosol.

The agent is quite toxic, and its efficacy has remained controversial. RespiGam, approved for prophylaxis in high risk pediatric patients, is an intravenous immunoglobulin which effectively neutralizes the virus. Recently, Synagis, a monoclonal antibody administered through intramuscular injection has also been approved for use in high risk pediatric patients. However, both drugs are very expensive. Accordingly, inexpensive, safe and effective antiviral agents against respiratory syncytial virus will be beneficial for patients.

Many agents are known to inhibit respiratory syncytial virus (De Clercq, Int. J. Antiviral Agents, 1996,7,193). Y. Tao et al. (EP 0 058 146 Al, 1998) disclosed that Ceterizine, a known antihistamine, exhibited anti-RSV activity.

Tidwell et al., J Med. Chem. 1983,26,294 (US Patent 4,324,794,1982), and Dubovi

et al., Antimicrobial Agents and Chemotherapy, 1981, 19, 649, reported a series of amidino compounds with the formula shown below as inhibitors of RSV.

Hsu et al., US Patent 5, 256,668 (1993) also disclosed a series of 6- aminopyrimidones that possess anti-viral activity against RSV.

Y. Gluzman, et al., (AU Patent, Au-A-14,704,1997) and P. R. Wyde et al.

(Antiviral Res. 1998,38,31) disclosed a series of triazine containing compounds that were useful for the treatment and/or prevention of RSV infection.

In addition, T. Nitz, et al., (WO Patent, WO 00/38508, 1999) disclosed a series of triaryl containing compounds that were useful for the treatment and/or prevention of RSV and related pneumoviral infections.

A related series of compounds were first disclosed by F. Pagani and F.

Sparatore in Boll Chim Farm. 1965,104,427 and by G. Paglietti, et al. in Il Farmaco, Ed. Sci. 1975,30,505, and found to possess analgesic and anti-arrhythmic activity. The structural formula for these compounds are depicted in Formula la and Ib.

Formula la Formula Ib In Formula la and Ib, A is- (CH2) n-N (R) 2, n = 2 or 3, R = Me or Et,

Another series of closely related compounds that Sparatore had disclosed were in Il Farmaco Ed. Sci. 1967,23,344 (US patent 3,394,141,1968). Some of the compounds were reported to have analgesic, anti-inflammatory or anti-pyretic activities. The structure of these compounds is depicted in formula Ic. In Formula Ic, C = H, CF3, or NO2. D is- (CH2) n-NR2, n = 2 or 3, R = Me or Et, or

Formula lc Another series of compounds structurally related to this invention are pyrido [1, 2-a] benzoazoles and pyrimidio[1, 2a] benzimidazoles disclosed by S. Shigeta et al in Antiviral Chem. & Chemother. 1992, 3, 171. These compounds have demonstrated inhibition of orthomyxovirus and paramyxovirus replication in HeLa cells. The structures of these compounds are shown in formulas Id and Ie, in which R = NH, S, or O ; Q =-NHCOPh,-COOH, COOEt, or CN; T = COMe, CN, or COOEt ; G = O or NH.

Formula 1d Formula 1e Another series of 2-aminobenzimidazoles have been reported by E. Janssens, et al. as inhibitors of RSV in a series of recent publications and representative examples formula lf-lh are shown below from PCT WO 01/00611 Al ; PCT WO 01/00612 and PCT WO 01/00615, respectively all published on January 4,2001.

Formula lf Formula lg Forrnula lh A bis-benzimidazole with an ethylenediol linker shown below has also been reported as a potent inhibitor of rhinoviruses (Roderick, et al. J Med. Chem. 1972, 15, 655.

Other structurally related compounds are bis-benzimidazoles which possess antifungal activity (B. Cakir, et al. EczacilikFak. Derg. 1988, 5, 71.

R = H, Nq Also, H. R. Howard et al. reported a series of benzimidazolone-1-acetic acids that possessed aldolase reductase inhibitory activity (Eur. J Med Chem. 1992,27, 779-789).

X=O, S Other prior art related to the chemical structure of the present invention: (1) F. Sparatore, et al,"Derivati Benzotriazolici Attivi Sull'accrescimento Delle Piante,"IlFarmacoEd. Sci. 1978,33,901.

(2) Katritzky, A. R. et al,"Synthesis and Transformations Of Substituted Benzazolyl-and Tetrazolyl (benzotriazol-1-yl) methanes," J. Heterocyclic Chem.

1996,33,1107.

(3) Terri A. Fairley, et al."Structure, DNA Minor Groove Binding, And Base Pair Specificity of Alkyl and Aryl-Linked Bis (amidinobenzimidazoles) and Bis (amidinoindoles), J. Med. Chem. 1993,36,1746.

(4) R. K. Upadhyay et al,"New Synthesis and Biological Evaluation,"Indian J Heterocyclic Chem. 1994,4,121.

(5) A. R. Katritzky, et al,"A New Route to N-substituted Heterocycles," Tetrahedron, 1993,49,2829.

(6) K. Yu et al. in Substituted Benzimidazole Anti-viral Agents, PCT WO 00/04900 published February 3,2000.

SUMMARY OF THE INVENTION This invention relates to the antiviral activity against RSV found in a series of 1-substituted 2- (3'-N-substituted 2-oxo-benzimidazolylmethyl)-benzimidazoles. The structural formula for these compounds are depicted in Formula I, and includes pharmaceutically acceptable salts thereof.

Formula I wherein: R, is- (CWW).-X ; Rv and Rw are independently selected from the group consisting of H, C1-6 alkyl, and C2-6 alkenyl ; optionally substituted with 1-6 of the same or different halogen; X is H, C1-6 alkyl, C2-6 alkenyl; each of said C1-6 alkyl, C2-6 alkenyl being optionally substituted with (1) one to six same or different halogen or hydroxy; (2) a member selected from the group consisting of phenyl,-C (=NOH) NH2, -CH (OH)-Ph,-Ph-S (O) 2C1-6 alkyl, (3) a member from Group Al ; Group Al is CN, OR, NR'R", RNCOR", NR'CONR"R"', NR'SO2R", NR'COOR", COR, COOR', OS (O) 2R, S (O) tR or PO (OR) 2 ; n is 1-6; t is 0-2; R2 is (i) H, C1-6alkyl, C2-6alkenyl, phenyl, or a functionality selected from Group A2 or Group B; each of said C1-6alkyl, C2-6 alkenyl, and phenyl being optionally substituted with (1) one to six same or different halogen or hydroxy or (2) one to two same or different members of Group A or Group B; (ii) -(CRxRy)n'-(CO)p-C6H4-(Z1)(Z2), wherein Z1 and Z2 are each independently selected from the group consisting of Group A, Group B, and - (CH2),,,-Z' ; wherein said Z'is heterocycle or -(NRdReRf) + (halogen)- ; and the Z, and Z2 groups may each be in the ortho, meta or para position relative to the -(CRxRy)n'-(CO)p- group ; wherein Rd, Re and Rf are independently C1-6 alkyl, C2-6 alkenyl, OH or C1-6 alkyl COOH;

p is 0 or 1 ; n'is 1-6; or (iii) -(CRxRy)n''-heterocycle ; n"is 0-6; R3, R6, R7 and Rlo are each independently H; R5, R8 and Rg are each independently H, halogen or CF3 ; R4 is selected from the group consisting of H, halogen, CN,-C (O) C1-6 alkyl and R11, R, 2are each independently H; R", RY are each independently H or C1-6 alkyl ; Group A2 is COR, COOR, CONR'R'' or CONR'SO2R'' ; Group A3 is CN, NO2, OR', OCONR'R", NR'R", N (R') COR", N (R')CONR''R''', NR'SO2R", NR'COOR", SO", R', SO2NR'R", SO2NR'COR"or PO (OR'), ; Group A is a member selected from Group A2 and Group A3; R', R", R"'are each independently selected from the group consisting of H, Cl-6 alkyl, phenyl and heterocycle; and each of said C1-6 alkyl, phenyl and heterocycle being optionally substituted with (1) one to six of same or different halogen or hydroxy; (2) one to two of the same or different members of Group A'or Group B; or (3) heterocycle; or R'and R"taken together form a 5 to 6 membered aromatic or non- aromatic ring containing one to four of the same or different heteroatoms selected from the group consisting of N, S and O ;

Group A'is halogen, CN, NO2, ORa, OCONRaRb, NRaRb, RaNCORb, NRaCONRbRc, NRaSO2Rb, NRaCOORb, COR', CRcNNRaRb, CRaNORb, COORa, CONRaRb, CONR' SO2Rb, SOmRa,SO2NRaRb, SO2NRaCORb or PO (ORa) 2 ; Ra, Rb, Rc are each independently selected from the group consisting of H and C1-6 alkyl ; Group B is-(CH2)n'''Q, -(CH2)n''''SOm''-R13 or -COQ ; Q is an N-linked amino acid selected from the group consisting of alanine, asparagine, aspartic acid, glutamic acid, glutamine, glycine, pipecolic acid, a-amino- butyric acid, a-amino-propanoic acid, 2-amino-3-phonopropionic acid and iminodiacetic acid; wherein Q is linked to the adjacent carbon atom in Group B through a nitrogen atom of said N-linked amino acid; wherein said N-linked amino acid includes D-or L-enantiomers or mixtures thereof ; RI3 is selected from a group consisting of H and C1-6 alkyl ; said C1-6alkyl being optionally substituted with (1) one to five hydroxy groups or (2) two of the same or different functionalities selected from the group consisting of COOR"and CONR"R'' ; m, m and m are independently 0-2; n"'is 1-6; heterocycle is a 5-6 membered aromatic or non-aromatic ring which contains one to four heteroatoms independently selected from the group consisting of O, N and S; wherein said aromatic or non-aromatic ring is optionally fused to a phenyl ring; wherein the aromatic or non-aromatic ring is optionally substituted with one to five of the same or different substituents selected from the group consisting of C1-6 alkyl, Group A and Group B; and halogen is bromine, chlorine, fluorine or iodine.

In a preferred embodiment, the heterocycle is an aromatic ring selected from the group consisting of furyl, thienyl, pyridyl, pyrrolyl, oxazolyl, thiazolyl, imidazolyl, pyrazolyl, isoxazolyl, isothiazolyl, 1,2,3-oxadiazolyl, 1,2,4-oxadiazolyl, 1, 2,4-oxadiazol-5-one, 1,2,3-triazolyl, 1,3,4-thiadiazolyl, pyridazinyl, pyrimidinyl,

pyrazinyl, 1,3,5-triazinyl, indolizinyl, indolyl, isoindolyl, 3H-indolyl, indolinyl, benzo [b] furanyl, benzo [b] thiophenyl, 1H-indazolyl, benzimidazolyl, tetrazole, uridinyl and cytosinyl.

In another preferred embodiment, the heterocycle is a non-aromatic ring selected from the group consisting of pyrrolidine, imidazoline, 2-imidazolidone, 2- pyrrolidone, pyrrolin-2-one, tetrahydrofuran, 1,3-dioxolane, piperidine, tetrahydropyran, oxazoline, 1,3-dioxane, 1,4-piperazine, morpholine and thiomorpholine.

In another preferred embodiment in R2, substituents Rx and RY are each hydrogen. Also preferred is R, and R, z each being hydrogen. Still more preferred are compounds wherein n is 1 and n is 3-4.

In another preferred embodiment, n is 1-4.

In another preferred embodiment are compounds wherein: RI is vinyl, allyl, 3-methyl-2-butene or- (CH2) n-X, wherein n is 2-4, and X is a functionality selected from the group consisting of

wherein R17 is H or C1-4 alkyl ; 9ii) -CH2-C6H4-Z ; (iii) -(CH2)k-Z'', wherein k is 1-6; wherein Z and Z are each independently selected from the group consisting of : -NHCOR15, -NHSO2R16, -NHSO2CF3,-SR15, -SO2R15, -SO2NR15R16 and -SO3H ; a and b are each independently 0-2; and

Ris and R16 are each independently H, C14 alkyl, wherein said C14 alkyl is optionally substituted with 1-3 same or different halogens.

In another embodiment of the invention there is provided a method for treating mammals infected with RSV, and in need thereof, which comprises administering to said mammal a therapeutically effective amount of one or more of the aforementioned compounds of having Formula I, including pharmaceutically acceptable salts thereof.

Another embodiment includes a pharmaceutical composition which comprises a therapeutically effective amount of one or more of the aforementioned anti-RSV compounds of having Formula I, including pharmaceutically acceptable salts thereof, and a pharmaceutically acceptable carrier.

The term pharmaceutically aceptable salt includes solvates, hydrates, acid addition salts, base addition salts, and the salts of quarternary amines and pyridiniums. The acid addition salts are formed from a compound of Formula I and a pharmaceutically acceptable inorganic or organic acid including but not limited to hydrochloric, hydrobromic, sulfuric, phosphoric, methanesulfonic, acetic, citric, malonic, fumaric, maleic, sulfamic, or tartaric acids. The counter ion of quaternary amines and pyridiniums include chloride, bromide, iodide, sulfate, phosphate, methansulfonate, citrate, acetate, malonate, fumarate, sulfamate, and tartrate. The base addition salts include but are not limited to salts such as sodium, potassium, calcium, lithium and magnesium.

Halogen means bromine, chlorine, iodine and fluorine.

DETAILED DESCRIPTION OF THE INVENTION Compounds of Formula I may be prepared using the procedures outlined in Schemes I-V.

Compounds of Formula I can be prepared as shown in Scheme I. Starting from the methansulfonamide of IV, alkylation with N- isopropylidenebenzimidazolone V in the presence of an appropriate base, such as NaH or a phosphazene base such as BTPP, followed by cleavage of the

methanesulfonamide with tetrabutylammonium fluoride (TBAF) gives compounds of Formula VI. Alkylation of compounds of Formula VI with R,-LG where LG is a leaving group, preferably halide or sulfonate such as mesylate using an appropriate base such as NaH or Cs2CO3 provides eompounds of Formula VII. Alternatively, compounds with Formula VII can be obtained through Michael addition of VI with acrylonitrile, vinyl sulfone, or an ester of acrylic acid. Alkylation of VI may give mixtures of regioisomers when R3-R6 are non-equivalent. These mixtures may be purified by various chromatographic techniques. Alternatively, single regioisomers can be obtained by employing a reaction sequence like that described in Scheme IVa.

Cleavage of the isopropylidene moiety with acid such as hydrochloric acid or acetic acid followed by a second alkylation step with R2-LG provides compounds of Formula I.

Scheme I R3 O\\ R4t N HNN lO R-LG 'C 1) STPP or NaH R \N Rs M R79 2) TBAF or or CH2=CHR z hydrazine R5 H R ^ RB R6 R = CN, SO2CH3, IV V V) COOED H R3 R3 OYN Rio HCI I MEOH R N Rlo N OY " ."' R R R6 Ra Vil Voll R2 R3 DN Rto R CS2CO3 or BTPP RNR7 R8 or NaH R6 R R R8 Formula I Compound IV can be prepared using the reaction sequence depicted in Scheme Ia. When R4 and R5 are equivalent reaction of 2- chloromethylbenzimidazole (II) with methanesulfonyl chloride (MsCI) and

triethylamine gives compounds of Formula III. The chloride can be refluxed with potassium iodide in acetone to produce IV, as described in PCT WO 00/04900.

Scheme la Compounds of Formula I can also be prepared as shown in Scheme II.

Alkylation of the substituted benzimidazolone of Formula XIII with a chloride XI in the presence of an appropriate base such as BTPP, Cs2CO3, or NaH, gives compounds of Formula I.

Scheme II R3 O BTPP, NaH, N HN ° \CI + R N _ o CSaC03 R4 N N R /10 R6 R HCI R8/R1o R5 R R R7 \ Rs Rs R8 Reg 9R8 xi XIII Formula I The synthesis of intermediates XI and XIII are depicted below in Schemes IIa and lib, respectively. When R4 and R5 are equivalent selective N-alkylation of 2- hydroxybenzimidazole (IX) with R,-LG or a Michael acceptor, such as acrylonitrile (R = CN), followed by conversion of the hydroxyl group of X to the chloride with SOC12 affords intermediate of Formula XI. Reaction of N- isopropylidenebenzimidazolone V with R2-LG in the presence of an appropriate base such as NaH, BTPP, or Cs2CO3 affords intermediate XII. Cleavage of the isopropylidene moiety with acid gives compounds of Formula XIII.

Scheme IIa

Scheme IIb

Additionally, a hybrid method from Schemes I and II may be employed for the preparation of compounds of Formula I as depicted in Scheme III. Coupling of intermediates XI and V in the presence of an appropriate base affords compounds of Formula VII. Cleavage of the isopropylidene moiety and reaction with R2-LG utilizing the same procedures described in Scheme I gives compounds of Formula I Scheme III R4 O ! ! O BTPP NaH, Ra or CsaC03 R4 \ N N Ne rye N N Rs R HCI i Re/R1o R6 R1 R7 R9 R9 Ra xi V Vil HCI or R3 °\ R3 &~ R2 CH3COOH R NH R2-LG Ra N a N N N N Rio Rio baste N Rs R1 R7 \ Rs Rs R R7 \ Rs Re Ra Vlil Formula I In a different approach, compounds of Formula I were prepared using the synthetic route illustrated in Scheme IV. Substituted phenylenediamine XIV can be coupled with either the acid XV through an amide coupling agent, such as a carbodiimide, or with the acid chloride XVI and a base. The crude material is directly cyclized to the benzimidazole in warm acetic acid to give compounds of Formula I. Alternatively, the phenylenediamine XIV can directly react with acid XV in the presence of EEDQ or the acid chloride XVI to give compounds of Formula I.

In a slightly modified procedure depicted in Scheme IV, phenylenediamine XIV can be coupled with acid XV or acid chloride XVI in the same manner described above to give compounds of Formula XXIII which then can react with R,-LG in the presence of an appropriate base to afford compounds of Formula I.

Scheme IV Ru R3, R2 1) coupling 0 N Rio I i + N/\ 10 2 HOAc, o Ra N N/\ s R5 NH W Rs o / EEDQ, THF, % R R R8 reflux R6 1 XIV W=CH2CO2H XV, Formula I CH2COCIXVI R2 R3 R2 1) coupling R3 BR2 I N 10 R'NH N/ R9 or s 2 EEDQ, THF, Rs H R Re R R8 reflux R6 XVII W= CH2CO2H XV, XVIII CH2COCI XVI R2 0 N RIO RI-LU Basé Base R5 R7 R8 R6 R1 Formula I The preparation of pheneylenediamines XXI is described in Scheme IVa.

Coupling of a l-fluoro-2-nitrobenzene derivative XIX and the appropriate amine produces compounds of Formula XX. Reduction of compound XX under catalytic hydrogenation conditions to give phenylenediamine XXI.

Scheme IVa The right-hand benzimidazolone intermediates XXI I and XXIII can be prepared using standard alkylation chemistry and deprotection procedures as depicted in Scheme IVb starting with the known compound of Formula XXII.

Scheme IVb Further modification of compounds at the R2 side-chain can be accomplished by extension of the side-chain with one or more linkers as described in Scheme V.

Alkylation of compounds of Formula VIII with a linker (Y-LG) in the presence of an appropriate base such as Cs2CO3, NaH, or BTPP affords intermediates XXIV.

Intermediate XXIV is then extended through standard coupling and alkylation reactions to give compounds of Formula I.

Scheme V R Rs O Ra Ra O Y \ Y G \ N N Ro N Rio N Rio 5-N sN vRg Cs2CO3 or BTPP N ßRg R6 Ri or NaH Rs Ra R Ra"s XXIV Voll Extension of R4 R3 \ N Y = Z Z = COOH, X N Z-O-Z amidecoupling, R > + alkylation, etc. N Rs where X = Ri R7 R8 halide 8 Formula I Abbreviations used herein, including in Schemes I-V, experimental section unless indicated otherwise: AcOH : acetic acid AIBN: azobisisobutyronitrile

BEMP: 2-t-butylimino-2-diethylamino-1, 3-dimethyl-perhydro-1,3,2- diazaphosphorane BTPP: t-butylimino-tri (pyrrolidino) phosphorane DEAD: diethyl azodicarboxylate DMF: dimethylformamide EDC: 1-ethyl-3- (3-dimethylaminopropyl) carbodiimide EEDQ: 2-ethoxy-1-ethoxycarbonyl-1, 2-dihydroquinoline Et: ethyl Et2O : diethyl ether EtOAc: ethyl acetate EtOH : ethyl alcohol HOAc : glacial acetic acid Me: methyl MeOH : methyl alcohol MTBD: 1, 3,4,6,7,8-hexahydro-1-methyl-2H-pyrimido [1, 2-a] pyrimidine Ph: phenyl Prep HPLC: preparative high performance liquid chromatography PyBroP: bromotripyrrolidinophosphonium hexafluorophosphate TBAF: tetrabutylammonium fluoride TEA: triethylamine TFA: trifluoroacetic acid THF: tetrahydrofuran Tr: triphenylmethyl (trityl) group It will be appreciated by those skilled in the art that reference herein to treatment extends to prophylaxis as well as the treatment of established infections or symptoms.

It will be further appreciated that the amount of a compound of the invention required for use in treatment will vary not only with the particular compound selected but also with the route of administration, the nature of the condition being treated and the age and condition of the patient, and will ultimately be at the discretion of the attendant physician or veterinarian. In general however, a suitable dose will be in the range of from about 0.01 to 750 mg/kg of body weight per day preferably in the range of 0.1 to 100 mg/kg/day, most preferably in the range of 0.5 to 25 mg/kg/day.

Treatment is preferably commenced before or at the time of infection and continued until virus is no longer present in the respiratory tract. However, the treatment can also be commenced when given post-infection, for example after the appearance of established symptoms.

Suitable treatment is to administer the compound 1-4 times daily and continue for 3-7 days, e. g. 5 days, post infection, depending upon the particular compound used.

The desired dose may be adminstered as a single dose or in divided doses administered at appropriate intervals, for example as two, three, four or more sub- doses per day.

The compound is conveniently administered in unit dosage form, for example, containing 10 to 1500 mg, conveniently 20 to 1000 mg, most conveniently 50 to 700 mg of active ingredient per unit dosage form.

While it is possible that, for use in therapy, a compound of the invention may be administered as the raw chemical, it is preferable to present the active ingredient as a pharmaceutical formulation.

The invention thus further provides a pharmaceutical formulation comprising a compound of the formula I, but not subject to the proviso thereto, or a pharmaceutically acceptable salt or derivative thereof together with a pharmaceutically acceptable carrier thereof.

The carrier must be"acceptable"in the sense of being compatible with the other ingredients of the formulation and not deleterious to the recipient thereof.

The pharmaceutical formulations may be in the form of conventional formulations for the intended mode of administration.

For intranasal administration according to the method of the invention the compounds of the invention may be administered by any of the methods and formulations employed in the art for intranasal administration.

Thus in general the compounds may be administered in the form of a solution or a suspension or as a dry powder. Solid carriers include, for example, starch, lactose, dicalcium phosphate, microcrystalline cellulose, sucrose and kaolin.

Solutions and suspensions will generally be aqueous, for example prepared from water alone (for example sterile or pyrogen-free water), or water and a physiologically acceptable co-solvent (for example ethanol, propylene glycol, and polyethylene glycols such as PEG 400).

Such solutions or suspensions may additionally contain other excipients, for example, preservatives (such as benzalkonium chloride), solubilizing agents/surfactants such as polysorbates (e. g. Tween 80, Span 80, benzalkonium chloride), buffering agents, isotonicity-adjusting agents (for example sodium chloride), absorption enhancers and viscosity enhancers. Suspensions may additionally contain suspending agents (for example microcrystalline cellulose, carboxymethyl cellulose sodium).

Solutions or suspensions are applied directly to the nasal cavity by conventional means, for example with a dropper, pipette or spray. The formulations may be provided in single or multidose form. In the latter case a means of dose metering is desirably provided. In the case of a dropper or pipette this may be achieved by the patient administering an appropriate, predetermined volume of the solution or suspension. In the case of a spray this may be achieved for example by means of a metering atomizing spray pump.

Intranasal administration may also be achieved by means of an aerosol formulation in which the compound is provided in a pressurized pack with a suitable propellant such as a chlorofluorocarbon (CFC), for example dichlorodifluoromethane, trichlorofluoromethane or dichlorotetrafluroroethane, carbon dioxide or other suitable gas. The aerosol may conveniently also contain a surfactant such as lecithin. The dose of drug may be controlled by provision of a metered valve.

Experimental Section Proton nuclear magnetic resonance (1H NMR) spectra were recorded on a Bruker Advance 500, AC-300, Bruker DPX-300 or a Varian Gemini 300

spectrometer. All spectra were determined in CDC13, CD30D, or DMSO-d6 and chemical shifts are reported in 8 units relative to tetramethylsilane (TMS). Splitting patterns are designated as follows: s, singlet; d, doublet ; t, triplet; m, multiplet; b, broad peak; dd, doublet of doublets; dt, doublet of triplets. Mass spectroscopy was performed on a Finnigan SSQ 7000 quadrupole mass spectrometer in both positive and negative electrospray ionization (ESI) modes or on a LC-MS using Shimadzu LC-lOAS with micromass platform LC single quadrupole mass spectrometer in positive electrospray ionization. High resolution mass spectroscopy was recorded using a Finnigan MAT 900. Infrared (IR) spectra were recorded on a Perkin-Elmer system 2000 FT-IR. Elemental analysis was performed with a Perkin-Elmer series II, model 2400 CHN/O/S analyzer. Column chromatography was performed on silica gel from VWR Scientific. Preparative HPLC was performed using a Shimadzu LC- 8A on a C 18 column eluted with mixture of MeOH in water with 0.1 % trifluoroacetic acid.

Preparation of Compounds as depicted in Scheme I : To a solution of 2- (chloromethyl) benzimidazole (80 g, 0.48 mol) and methanesulfonyl chloride (58.3 mL, 0.75 mol) in CH2Cl2 (0.5 L), triethylamine (136 mL, 0.97 mol) was added dropwise under nitrogen. The resulting mixture was stirred at room temperature for 6 hours. The mixture was filtered and the filtrate was evaporated. The residue was triturated with MeOH and filtered to afford 74.9 g (64% yield) of compound 1 as a brown solid: 'H NMR (CDC13) 8 3.44 (s, 3 H), 5.11 (s, 2 H), 7.40-7.49 (m, 2 H), 7.76-7.82 (m, 1 H), 7.85-7.91 (m, 1 H); IR (KBr, cmi') 3027,2920,1371,1349,1177,1144,1059; MS m/e 245 (MH+) ; Anal. Calcd for CgHgCIN202S : C, 44.18; H, 3.71; N, 11.45 Found: C, 44.09; H, 3.57; N, 11.49.

A solution of potassium iodide (206 g, 1.24 mol) and compound 1 (74.8 g, 0.414 mol) in acetone (1 L) was stirred at reflux under nitrogen for 4 hours. The solid was filtered and the filtrate was evaporated. The crude product was triturated in MeOH and filtered to give 83 g (60% yield) of compound 2 as a solid: 'H NMR (CDCl3) 8 3.48 (s, 3 H), 4.97 (s, 2 H), 7.40-7.50 (m, 2 H), 7.75-7.85 (m, 2 H); IR (KBr, cm~') 3022,2916,1366,1173,1055,966,763,745; MS m/e 336 (MH+) ; Anal. Calcd for C^HgIN202S : C, 32.16; H, 2.70; N, 8.33 Found: C, 32.05; H, 2.63; N, 8.22.

2- (Iodomethyl)-l-(methanesulfonyl) benzimidazole, 2, (160 g, 0.476 mol) and l-isopropenyl-2-benzimidazolone (prepared using the procedure described by J.

Davoll, J. Chem. Soc. 1960, p308) were dissolved in 2 L of anhydrous THF and the solution cooled in a ice bath. To the solution, BTPP (223 g, 0.714 mol) was slowly added. The ice bath was removed, and the mixture was stirred at room temperature for 1.5 hours. The solution was evaporated. The residue was dissolved in ethyl acetate, washed with water, brine, dried over magnesium sulfate and evaporated. The residue was dissolved in THF (1 L) and tetrabutylammonium fluoride hydrate (130. 7 g, 0.5 mol) was added. The mixture was stirred at reflux for 5 hours. The solvent was evaporated. The residue was dissolved in EtOAc, washed with water, brine, dried over magnesium sulfate, and evaporated. The residue was purified through a short silica gel column with EtOAc in CH2Cl2 (10 to 100%) to give 92.0 g (72% yield) of compound 3 as a solid:

lH NMR (CDCl3) 6 2.24 (s, 3 H), 5.22 (s, 1H), 5.41 (s, 3H), 7.09-7.17 (m, 3H), 7.26- 7.30 (m, 2H), 7.39 (d, J = 6. 9 Hz, 1H), 7.60 (dd, J = 3. 3,6.0 Hz, 2H) ; MS m/e 305 (MH+).

Compound 4 (Scheme I) To compound 3 (30.4 g, 100 mmol) in DMF (200 mL) was added NaH (60% in mineral oil, 5.2 g, 130 mmol) in several portions at room temperature. After stirring for 30 minutes, 1-bromo-3methylbutane (16.62 g, 110 mmol) was added to the suspension and the mixture was stirred at 70 °C overnight. The crude product was purified by flash chromatography to give 33.7 g (90% yield) of compound 4 as a white solid: 1H NMR (CDC13) 6 0. 94 (d, J = 6.6 Hz, 6 H), 1.37-1.45 (m, 2 H), 1.64-1.75 (m, 1 H), 2.25 (s, 3 H), 4.31 (bt, J=8.1Hz, 2 H), 5.21 (s, 1 H), 5.38 (s, 1 H), 5.40 (s, 2 H), 7.01-7.10 (m, 3 H), 7.25-7.35 (m, 3 H), 7.46-7.47 (m, 1 H), 7.79-7.82 (m, 1 H); IR (KBr, cari') 2962,1702,1491,1471,1395,1331,740,734; MS m/e 375 (MH+) ; Anal. Calcd for C23H26N4O : C, 73.77; H, 7.00; N, 14.96 Found: C, 73.82; H, 6.94; N, 14.91.

Compound 5 (Scheme I) Compound 5 was prepared as described for compound 4 using 1-ethyl-1,3-dihydro- benzoimidazol-2-one.

'H NMR (CDCl3) 8 0.92 (d, J = 6. 6 Hz, 6H), 1.32-1.40 (m, 5H), 1. 63-1. 72 (m, 1H), 3. 90-4. 01 (m, 2H), 4.27-4.33 (m, 2H), 5.43 (s, 2H), 6.90-7.12 (m, 4H), 7.26-7.29 (m, 2H), 7.44 (d, J = 7. 6 Hz, 1H), 7.79-7.82 (m, 1H), 8.46 (bs, 1H); MS m/e363 (M H+).

Compound 6 (Scheme I) To compound 4 (33.7 g, 90 mmol) was added to 10% conc. HCl in MeOH (100 mL) and the reaction mixture was stirred at 75 °C for 1 h. The solvent was evaporated, and to the residue was added saturated NaHC03. The mixture was extracted with CH2Cl2. The combined extracts were washed with water and brine, and then dried over MgSO4. The solvent was evaporated, and the residue was passed through a short silica gel column to give a product which crystallized from CH2Cl2/EtOAc to give 22.83 g (84% yield) of compound 6 as white solid: 'H NMR (CDCl3) 81. 89 (d, J = 6.6 Hz, 6 H), 1.38-1.46 (m, 2 H), 1.67-1.74 (m, 1 H), 4.29-4.35 (m, 2 H), 5.46 (s, 2 H), 7.01-7.08 (m, 3 H), 7.28-7.31 (m, 3 H), 7.42-7.44 (m, 1 H), 7.81-7.84 (m, 1 H), 9.78 (bs, 1 H); IR (KBr, cm-') 2957,1696,1489,1458,1390,1332,749,737; MS m/e 335 (MH+) ; Anal. Calcd for C20H22N4O : C, 70.69; H, 6.70; N, 16.49 Found: C, 70.43; H, 6.69 ; N, 16.25.

Compound 7 (Scheme I)

A solution of compound 6 (212 mg, 0.63 mmol) and methyl 4- (bromomethyl)-benzoate (160 mg, 0.70 mmol) in THF (2 mL) was cooled to 0° and BTPP (219 mg, 0.7 mmol) was added dropwise under nitrogen. The resulting mixture was stirred at 0° for 0.5 h then at room temperature for 2 hours. The mixture was diluted with EtOAc and washed with water. The organic extracts were dried with MgSO4 and evaporated. The residue was purified by flash chromatography (gradient, hexanes: EtOAc 2: 1 to 1: 2) to give (219 mg, 71% yield) of compound 7 as a white solid: 'H NMR (CDCl3) 8 0.94 (d, J = 6.6 Hz, 6 H), 1.47 (m, 2 H), 1.70 (m, 1 H), 3.91 (s, 3 H), 4.34 (m, 2 H), 5.16 (s, 2 H), 5.49 (s, 2 H), 6.82 (d, J = 8. 9 Hz, 1 H), 7.02 (m, 2 H), 7.29 (m, 3 H), 7.38 (d, J=8. 3Hz, 2H), 7.50 (d, J = 7. 3 Hz, 1 H), 7.82 (m, 1 H), 7.99 (d, J = 8. 3 Hz, 2 H) ; IR (KBr, cm-') 3418,2952,1707,1495,1406,1279,748; MS m/e 483 (MH+) ; Anal. Calcd for C29H3QNO3 : C, 72.18; H, 6.27; N, 11.61 Found: C, 71.95; H, 6.20; N, 11.41.

Compound 8

Compound 7 (130 mg, 0.27 mmol) was dissolved in methanol (2 mL). A solution of IN NaOH (0.81 mL, 0.81 mmol) was added and the resulting mixture was heated to reflux for 3 h then cooled to room temperature. The solution was concentrated, and adjusted to pH 5 with IN HCI. The precipitate was filtered and dried to give 81 mg (63% yield) of compound 8. The acid was then converted to a sodium salt by adding aqueous NaHCO3, and the resulting solution was adjusted to pH 8 with IN HCI. The solution was evaporated to give the sodium salt of compound 8 as a white solid: 1H NMR (DMSO-d6) 5 0. 91 (d, J = 6.6 Hz, 6 H), 1.46 (m, 2 H), 1.65 (m, 1 H), 4.32 (m, 2 H), 5.09 (s, 2 H), 5.42 (s, 2 H), 6.99 (m, 2 H), 7.10 (m, 1 H), 7.29 (m, 5 H), 7.51 (d, J = 7. 3 Hz, 1 H), 7.60 (d, J=7.3 HZ, 1 H), 7.78 (d, J = 8. 3 Hz, 2 H) ; IR (KBr, cm'') 3396,2956,1703,1612,1598,1329,750; MS m/e 469 (MH+) ; Anal. Calcd for C28H27N4O3Na#1.5NaCl#2H2O : C, 54.79; H, 5.09; N, 9.12 Found: C, 55.08; H, 5.35; N, 8.86.

Compound 9

To a suspension of acid 8 (6.80 g, 14.5 mmol) in DMF (200 mL) at 0 °C was added PyBroP (7.41 g, 15.9 mmol). The suspension was stirred at 0 °C until it turned to a clear solution (about 30 minutes). Diisopropylethylamine (7.49 g, 57.9 mmol) and (L)-aspartic acid dimethyl ester hydrochloride (3.14 g, 15.9 mmol) were added and the resulting solution was stirred at ambient temperature overnight. The solvent was evaporated and the residue was purified by column chromatography (hexane : EtOAc 3: 1 tol: 4) to afford 8.30 g (94% yield) of compound 9 as a white solid: 'HNMR (DMSO-d6) 8 0.90 (d, J = 6.6 Hz, 6H), 1.41-1.48 (m, 2H), 1.59-1.68 (m, 1H), 2.72-2.97 (m, 2H), 3.57 (s, 3H), 3.61 (s, 3H), 4.29 (t, J = 7.9 Hz, 2H), 4.76-4.83 (m, 1H), 5.17 (s, 2 H), 5.42 (s, 2H), 6.98-7.25 (m, 6H), 7.44 (d, J = 8.3 Hz, 2H), 7.50 (d, J = 7. 5 Hz, 1H), 7.59 (d, J=7. 3Hz, 1 H), 7.78 (d, J= 8. 3Hz, 2H), 8.88 (d, J = 7. 7 Hz, 1H) ; IR (KBr, cri') 3312,2953,1740,1708,1495,1170,846,748; MS m/e 612 (MH+); Compound 10 was prepared as described for compound 7 using methyl bromoacetate and sodium hydride as the base.

'H NMR (CDCl3) 8 0.94 (d, J = 6.6 Hz, 6H), 1.42-1.56 (m, 2H), 1.64-1.73 (m, 1H), 3.76 (s, 3H), 4.29 (t, J = 8.2 Hz, 2H), 4.66 (s, 2H), 5.44 (s, 2H), 6.84-6.90 (m, 1H), 7.04-7.10 (m, 3H), 7.27-7.30 (m, 2H), 7.44-7.52 (m, 1H), 7.76-7.82 (m, 1H) ; MS m/e 406 (MH+).

Table 1-Additional examples prepared as described for compound 9. Kz ata 1) ata (CD3) 6 0.91 (d, J = 6.6 Hz, 6H), 0.99-1.13 lla (m, 2H), 1.43-1.51 (m, 4H), 1.56-1.69 (m, (MH) 2H), 1.84-1.98 (m, 4H), 2.00-2.16 (m, 1H), NH 1'HN_/COZMe 2.80-3.08 (m, 2H), 3.28 (t, J = 6. 3 Hz, 2H), o, r 3. 70 (s, 3H), 3.75 (s, 3H), 4.29 (t, J = 8.2 Hz, 2H), 4.83-4.89 (m, 1H), 5.30 (s, 2H), 5.45 (s, 2H), 6.50 (d, J = 8.1 Hz, 1H), 6.90-6.96 (m, 1H), 7.06-7.09 (m, 2H), 7.21-7.24 (m, 1H), 7.31-7.34 (m, 4H), 7.43-7.50 (m, 2H), 7.75- 7.78 (m, 1H) (DMSO-d,) 8 0.91 (d, J = 6.5 Hz, 6H), 1.47-630 llb 1.54 (m, 2H), 1.64-1.70 (m, 1H), 1.73-1.77 (MH+) (m, 1H), 3.07-3.19 (m, 2H), 3.45-3.51 (m, 2H), 3.57-3.66 (m, 2H), 3.70-3.79 (m, 2H), 4. 38 (t, J = 8. 1 Hz, 2H), 4.58 (d, J = 8. 3 Hz, wN"r OH 2H), 5.04 (d, J = 3.0 Hz, 1H), 5.17 (s, 2H), OHOo~OH 5. 51 (s, 2H), 7.00-7.03 (m, 2H), 7.08-7.13 (m, 1H), 7.25-7.. 36 (m, 3H), 7.42 (d, J = 8.4 Hz, 2H), 7.63 (t, J = 6. 7 Hz, 2H), 7.80 (d, J = 8. 3 Hz, 1H), 7.85 (d, J = 8.3 Hz, 1H), 7.98 (d, J = 7.2 Hz, 1H) (CDC13) 8 0.90 (d, J = 6.6 Hz, 6H), 1. 03-1.14 622 (m, 2H), 1.39-1.66 (m, 7H), 1.91-2.06 (m, (MH+) 4H), 2.24-2.33 (m, 1H), 3. 35 (t, J = 6.4 Hz, 2H), 3.68 (s, 3H), 4.27-4.34 (m, 2H), 5.32 (s, 2H), 5.52 (bs, 2H), 7.00-7.13 (m, 4H), 7.16- 7.19 (m, 1H), 7.30-7.35 (m, 4H), 7.49-7.62 (m, 2H), 7.82-7.87 (m, 1H) Compound 12 To a solution of compound 9 (3.3 g, 5.39 mmol) in MeOH (100 mL) was added 1 N NaOH (32 mL) and the solution was stirred at 60 °C for 10 min. The solvent was evaporated. The residue was dissolved in water and adjusted to pH 2

with IN HC1, extracted with THF and then EtOAc. The combined extracts were washed with brine, dried over MgSO4, and evaporated. The residue was triturated in EtOAc to give 2.55 g of compound 12 as a free acid. To the acid in methanol (50 mL) was added 2 equivalents of 1 N NaOH and solvent was evaporated. The residue was triturated with Et2O to give 2.53 g of the disodium salt of compound 12 as a white solid: 'H NMR (CD30D) 8 0.95 (d, J = 6.6 Hz, 6 H), 1.43-1.51 (m, 2 H), 1.64-1.73 (m, 1 H), 2.82 (d, J = 5. 9 Hz, 2 H), 4.35-4.40 (m, 2 H), 4.70 (t, J = 5. 9 Hz, 1 H), 5.24 (s, 2 H), 5.51 (s, 2 H), 7.02-7.06 (m, 3 H), 7.18-7.36 (m, 3 H), 7.45-7.51 (m, 3 H), 7.67 (dd, J = 1. 7,7.0 Hz, 1 H), 7.88 (d, J = 8. 3 Hz, 2 H) ; IR (KBr, cm-') : 3411,2956,1706,1612,1494,1407,854,749; MS m/e 584 (MH+).

Compound 13 A mixture of acid 8 (3.20 g, 6.82 mmol), 2-carbomethoxybenzenesulfonamide (1.76 g, 8.18 mmol), EDC (1.57 g, 8.18 mmol), and DMAP (1.00 g, 8.18 mmol) in CH2Cl2 (150 ml) was stirred at ambient temperature for 12 hours. The solution was diluted with CH2Cl2 (150 ml), washed with 1N HCl (200 ml) and brine. The organic phase was dried over MgSO4 and evaporated. The residue was purified on a silica gel column which was pre-treated with 0.1 % acetic acid in CH2Cl2 and eluted with EtOAc, and then 5% to 10% MeOH in EtOAc to afford 4.13 g (91%) of compound 13 as white solid: 'HNMR (CD30D) 8 0.91 (d, J = 6.6 Hz, 6 H), 1. 40-1.48 (m, 2 H), 1.60-1.69 (m, 1 H), 3.74 (s, 3 H), 4.34 (t, J=8. 0Hz, 2H), 5.19 (s, 2 H), 5.48 (s, 2 H), 7.03-7.04 (m, 3 H), 7.17-7.21 (m, 1 H), 7.27-7.38 (m, 4 H), 7.46-7.58 (m, 4 H), 7.64-7.67 (m, 1 H), 8. 00 (d, J = 8. 2 Hz, 2 H), 8.12-8.15 (m, 1 H);

IR (KBr, cm~l) 3424,2955,1709,1612,1590,1542,1493,1435,1348,1301,1258, 750; MS m/e 666 (MH+) ; Anal. Calcd for C36H3sN506ç1. 85H2O : C, 61.85; H, 5.58; N, 10.02 Found: C, 62.24; H, 5.41; N, 9.57.

Compound 14

Prepared as described for compound 13.

'H-NMR (CD30D) 8 0.95 (d, J = 6.4 Hz, 6H), 1.35 (t, J = 7.1 Hz, 6H), 1.59-1.72 (m, 3H), 4.12-4.23 (m, 4H), 4.47-4.52 (m, 2H), 5.24 (s, 2H), 5.67 (s, 2H), 7.12-7.14 (m, 3H), 7.24-7.27 (m, 1H), 7.49-7.57 (m, 4H), 7.73 (t, J = 7.1 Hz, 2H), 7.82 (d, J = 8.3 Hz, 2H), 7.97-8.01 (m, 2H), 8.23 (dd, J = 3.4,8.4 Hz, 2H); MS m/e 744 (MH+) ; Compound 15

A solution of ester 13 (0.53 g, 0.85 mmol) in THF (1 ml) and MeOH (5 ml) was treated with 1N NaOH (4.23 ml, 4.23 mmol). The solution was stirred at reflux for 12 h. After cooling to room temperature, the solution was acidified with 1N HC1 to pH 4.5 and evaporated. The residue was triturated in hot H2O (10 ml) and filtered.

The solid was washed with H2O and dried in vacuum to give 0.49 g (89% yield) of compound 15 as a white solid:

'HNMR (CD30D) 8 0.91 (d, J = 6.6 Hz, 6 H), 1.43-1.50 (m, 2 H), 1.60-1.69 (m, 1 H), 4.36 (t, J = 8. 1 Hz, 2 H), 5.22 (s, 2 H), 5.51 (s, 2 H), 7.03-7.06 (m, 3 H), 7.20- 7.21 (m, 1 H), 7.28-7.37 (m, 2 H), 7.44-7.52 (m, 3 H), 7.60-7.69 (m, 4 H), 7.91 (d, J = 8. 3 Hz, 2 H), 8.19-8.21 (d, J = 7. 4 Hz, 1 H); IR (KBr, cm-') : 3424,2957,1710,1612,1591,1563,1528,1512,1492,1439,1406, 1348,1173,750; MS m/e 652 (MH+) ; Anal. Calcd for C3sH33N5o6-H2o C, 62.77; H, 5.27; N, 10.46 Found: C, 62.61; H, 5.45; N, 10.27.

A suspension of the acid (1.20 g, 1.84 mmol) in MeOH (50 ml) was triturated with 1N NaOH (3.67 ml, 3.67 mmol) to pH 7.8 and filtered. The filtrate was lyophilized to yield 1.20 g (94% yield) of a white solid as a disodium salt of compound 15: 'HNMR (CD30D) 6 0.91 (d, J = 6.6 Hz, 6 H), 1.41-1.49 (m, 2 H), 1.62-1.69 (m, 1 H), 4.36 (t, J = 8. 1 Hz, 2 H), 5.20 (s, 2 H), 5.49 (s, 2 H), 7.00-7.04 (m, 3 H), 7.17- 7.20 (m, 1 H), 7.25-7.49 (m, 8 H), 7.65-7.68 (m, 1 H), 7.99-8.03 (m, 3 H); IR (KBr, cm-') 3424,2956,1707,1608,1592,1565,1504,1493,1403,1330,1154, 750; MS m/e 652 (MH+) ; Anal. Calcd for C35H31N5Na2O6#4H2O : C, 54.75; H, 5.12; N, 9.12 Found: C, 54.87; H, 5.01; N, 9.11.

Compound 16

Compound 16 was prepared by the same procedure as compound 9 using acid 8 and dimethylamine hydrochloride: 'HNMR (CD30D) 8 1.66-1.76 (m, 3H), 2.98 (s, 3H), 3.10 (s, 6H), 4.57 (t, J= 8. 3 Hz, 2H), 5.23 (s, 2H), 5.76 (s, 2H), 7.16-7.21 (m, 2H), 7.29-7.31 (m, 1H), 7.43 (d, J = 8.0 Hz, 2H), 7.51 (d, J = 8.0 Hz, 2H), 7.59-7.66 (m, 2H), 7.76 (d, J = 7.8 Hz, 1H), 7.86 (d, J=8Hz, lH) ; MS m/e 496 (MH+) ; IR (KBr, cm-') 3424,1708,1634,1494,1404,1190,751 Anal. Calcd for C30H33N5O2#1.0TFA#H2O : C, 61.24; H, 5.78; N, 11.16 Found: C, 61.10; H, 5.41; N, 10.83 Compound 17 Compound 17 was prepared as a white powder in 87% yield using the same procedure as compound 7 with compound 6 and m-bromomethylbenzoic acid methyl ester:

IH NMR (CDCl3) å 0.94 (d, J = 6.6 Hz, 6H), 1.47 (m, 2H), 1.69 (m, 1H), 3.91 (s, 3H), 4.32 (m, 2H), 5.15 (s, 2H), 5.46 (s, 2H), 6.84 (d, J = 8.9 Hz, 1H), 6.99 (m, 2H), 7.31 (m, 3H), 7.40 (m, 2H), 7.52 (d, J = 7. 3 Hz, 1H), 7.81 (m, 1H), 7.97 (d, J = 8. 3 Hz, 1H), 8.05 (s, 1H) ; IR (KBr, cm'') 3405,2952,1707,1497,1407,1291,747.

MS m/e 483 (MH+) ; Anal. Calcd for C29H30N4O3: C, 72. 18; H, 6.27; N, 11.61 Found: C, 72.08; H, 6.32; N, 11.42 Compound 18 Compound 18 was prepared as a white powder in 77% yield using the same procedure as for compound 8: 'H NMR (DMSO-d6) 8 0.90 (d, J = 6.6 Hz, 6H), 1.43 (m, 2H), 1.64 (m, 1H), 4.32 (m, 2H), 5.09 (s, 2H), 5.42 (s, 2H), 6.99 (m, 2H), 7.08 (m, 1H), 7.19 (m, 5 H), 7.49 (d, J = 7. 3 Hz, 1H), 7.59 (d, J = 7.3 Hz, 1H), 7.72 (d, J = 8.3 Hz, 1H), 7.81 (s, 1H) ; IR (KBr, cm-1) 3401,2955,1702,1565,1493,1391,750; MS m/e 469 (MH+) ; Anal. Calcd for C28H27N4O3Na#2. 25 H20 : C, 63.32; H, 5.97; N, 10.55 Found: C, 63.31; H, 5.62; N, 10.41 Compound 19

Compound 6 (5.0 g, 14.95 mmol), o-bromomethylbenzoic acid methyl ester (4.43g, 19.44 mmol) and Cs2CO3 (14.62,44.85 mmol) were stirred at reflux in acetone (200 mL) for 1 hour. The solvent was evaporated and the residue dissolved in CH2C12 and filtered. The filtrate was washed with water, dried over MgSO4 and evaporated. The residue was triturated in EtOAc to give 6.37 g (88% yield) of compound 19 as a white solid: 'H NMR (CDC13) 8 0.93 (d, J = 6.6 Hz, 6 H), 1.42-1.50 (m, 2 H), 1.65-1.74 (m, 1 H), 3.96 (s, 1 H), 4.29-4.35 (m, 2 H), 5.46 (s, 2 H), 5.58 (s, 2 H), 6.79 (d, J = 7.9 Hz, 1 H), 6.95-7.06 (m, 3 H), 7.27-7.38 (m, 4 H), 7.48 (d, J = 7.1 Hz, 1 H), 7.78-7.81 (m, 1 H), 8.06 (dd, J = 1.6,7.6 Hz, 1 H); IR (KBr, cm-1) 1707,1497,1403,1284,1257,739; MS m/e 483 (MH+) ; Anal. Calcd for C29H30N4O3 : C, 72.18; H, 6.27; N, 11.61 C, 71.96; H, 6.21; N, 11.41.

Compound 20 Compound 20 was prepared using the same procedure as for compound 8.

'H NMR (DMSO-d6) 8 0. 91 (d, J = 6.7 Hz, 6 H), 1.40-1.47 (m, 2 H), 1.61-1.70 (m, 1 H), 4.30-4.35 (m, 2 H), 5.43 (s, 2 H), 5.55 (s, 2 H), 6.85 (dd, J = 1. 5,7.9 Hz, 1 H), 6.89-6.98 (m, 2 H), 7.06-7.26 (m, 6 H), 7.50 (d, J = 7.4 Hz, 1 H), 7.61 (d, J = 6.8 Hz, 1 H), 7.69 (dd, J = 1.9,7.4 Hz, 1 H); IR (KBr, cm-') 3403,2956,1701,1609,1586,1562,1493,1396,742; MS m/e 469 (MH) ; Anal. Calcd for C29H27NaN403 1.85 H20 : C, 64.19 ; H, 5.90; N, 10.64 Found: C, 63.78; H, 5.49; N, 10.50.

Compound 21

Compound 21 was prepared using the same procedure as for compound 7 with compound 6 and 5-bromovaleronitrile : lHNMR (CDC13) 6 0.94 (d, J = 6.6 Hz, 6H), 1.43 (m, 2H), 1.63-1.81 (m, 3H), 1.97 (m, 2H), 2.46 (t, J = 7.1 Hz, 2H), 3.99 (t, J = 6.8 Hz, 2H), 4.30 (m, 2H), 5.40 (s, 2H), 6.96-7.12 (m, 3H), 7.29 (m, 3H), 7.44 (d, J = 7. 2 Hz, 1H), 7.80 (m, 1H); MS m/e 416 (MH+).

Compound 22

Nitrile 21 (2.89g, 6.96 mmol), ammonium chloride (1. 12g, 20.87 mmol)

and sodium azide (1.36 g, 20.87 mmol) were mixed in anhydrous DMF (100 mL) and stirred at 110 °C for 1 day. After additional ammonium chloride (1.12g, 20.87 mmol) and sodium azide (1.36 g, 20.87 mmol) were added, the mixture was stirred for additional 2 days at 110 °C. The solvent was evaporated and the residue purified by silica gel column chromatography (gradient, MeOH in EtOAc 0 to 10%). The residue was dissolved in 1 N NaOH and chromatographed on a C18 column using 10 to 40% MeOH/water to give 1.2 g (38% yield) of compound 22: 'H NMR (CDC13) 6 0.94 (d, J = 6.6 Hz, 6H), 1.60 (m, 2H), 1.70 (m, 1H), 1.91 (m, 2H), 2.00 (m, 2H), 3.03 (t, J = 7.1 Hz, 2H), 4.00 (t, J = 6.8 Hz, 2H), 4.29 (m, 2H), 5.40 (s, 2H), 6.90 (m, 1H), 7.03 (m, 2H), 7.20-7.36 (m, 4H), 7.60 (d, J = 7.5 Hz, 1H) ; MS m/e 459 (MH+).

Table 2-Compounds listed below were prepared by alkylation of compound 6 as described for the preparation of compound 7. # R2'»-N M R Data MS Data (CDC) 8 0. 97 (d, J = 6. 6 Hz, 6H), 470 (MH') 23a 1. 46-1.54 (m, 2H), 1.67-1.74 (m, 1H), /--N02 4. 38-4.43 (m, 2H), 5.21 (s, 2H), 5.58 (bs, 2H), 6.82 (d, J = 7. 4 Hz, 1H), 7.02- 7.14 (m, 2H), 7.38 (bs, 3H), 7.49 (d, J = 8. 7 Hz, 2H), 7.64-7.71 (m, 1H), 7.84- 7.92 (m, 1H), 8.20 (d, J = 8. 8 Hz, 2H) b (CD3) 6 0.96 (d, J = 6. 5 Hz, 6H), 1 (MH) rez OEt 1. 32 (t, J = 7. 1 Hz, 6H), 1.45-1.74 (m, Et 3H), 4.03-4.19 (m, 4H), 4.38 (t, J = 7. 9 Hz, 2H), 5.16 (s, 2H), 5.54 (s, 2H), 6.84-6.87 (m, 1H), 7.03-7.08 (m, 2H), 7.41-7.45 (m, 5H), 7.53-7.59 (m, 1H), 7. 75-7.86 (m, 3H) (DMSO-d,) 8 0.90 (d, J = 6. 6 Hz, 6H), 23c 1. 40 (s, 9H), 1.39-1.47 (m, 2H), 1.61- co2tBu 1. 65 (m, 1H), 4.20-4.33 (m, 2H), 4.59 (s, 2H), 5.03 (s, 2H), 5.40 (s, 2H), 6.85 (d, J = 8. 6 Hz, 2H), 6.97-7.00 (m, 2H), 7.14-7.26 (m, 4H), 7.29 (d, J = 14. 7 Hz, 2H), 7.50 (d, J = 7. 7 Hz, 1H), 7.59 (d,J=7. 6 Hz, lH) (DMSO-d6) 8 0.91 (d, J = 6. 6 Hz, 6H), 554 (M H) 23d 1. 44 (s, 11H), 1.54-1.68 (m, 1H), 4. 31- 4.38 (m, 2H), 4.81 (s, 2H), 5.16 (s, 2H), 5.43 (s, 2H), 6.82-7.08 (m, 4H), co2tsu 7. 1U-7. 12 (m, 2H), 7.15-7.31 (m, 4H), xi c | (DMSO-d6) 6 0. 90 (d, J=6. 6 Hz, 6H), SS4 (MH) co2tBu 1.37 (s, 9H), 1.41-1.48 (m, 2H), 1.59- « oH 1. 66 (m, 1H), 4.28-4.34 (m, 2H), 4.59 (s, 2H), 5.05 (s, 2H), 5.40 (s, 2H), 6.76- 6.80 (dd, J = 2. 2,7.9 Hz, 1 H), 6.90- 7.01 (m, 4H), 7.09-7.26 (m, 5H), 7.48 (d, J=7. 4Hz, IH), 7.58 (d, J = 7. 3 Hz, 1H) _ (DMSO-d6) 6 0. 91 (d, J=5. 3Hz, 6H), 641 (MH-) 23P oco2E. 1.17 (d, J=7. 1Hz, 3H), 1.30 (d, J = 7. 1 Hz, 3H), 1.48-1.60 (m, 2H), 1.61- s co2Et 1.75 (m, 1H), 4.07 (q, J = 7. 2 Hz, 2H), 4.22 (q, J = 6. 9 Hz, 2H), 4.43 (t, J = 7. 8 Hz, 2H), 4.82 (s, 2H), 5.12 (s, 2H), 5.58 (s, 2H), 7.00-7.01 (m, 2H), 7.10- 7.23 (m, 2H), 7.30-7.43 (m, 5H), 7.60 (d, J = 7. 5 Hz, 1H), 7.68-7.73 (m, 2H) a (DMSO-d6) 6 0. 90 (d, J=6. 5Hz, 6H), 512 (mu) 23g OMe 1.41-1.55 (m, 2H), 1.49-1.67 (m, 1H), 3. 75 (s, 3H), 3.79 (s, 3H), 4.82 (t, J = e 7, 6 Hz, 2H), 5.16 (s, 2H), 5.43 (s, 2H), 6.88 (d, J = 8. 0 Hz, IH), 6.99-7.04 (m, 2H), 7.15-7.26 (m, 5H), 7.53 (d, J = 8. 4 Hz, 1H), 7.58 (d, J = 7. 9 Hz, 2H) (DMSO-d6) 8 0.89 (d, J = 6. 6 Hz, 6H), 527 (MiT) 23ha No2 1.38-1.45 (m, 2H), 1.56-1.64 (m, 1H), 3. 64 (s, 3H), 4,24 (t, J = 7. 8 Hz, 2H), 5. 30 (s, 2H), 5.49 (s, 2H), 6.88-6.91 1H), 6.91-7.02 (m, 2H), 7.15-7.27 (m, 3H), 7.50 (d, J = 7. 8 Hz, 1H), 7.60 (d, J = 8. 1 Hz, 1H), 7.71 (t, J = 7. 8 Hz, 1H), 7.99 (d, J = 6. 9 Hz, 1H), 8.08 (d, J =8. 4 Hz, lH) . a (DMSO-d6) 6 0.93 (d, J = 6. 3 Hz, MeT) 231 NO2 1.42-1.58 (m, 2H), 1.60-1.78 (m, 1H), 3. 91 (s, 3H), 4. 36 (t, J = 7. 5 Hz, 2H), M J 5. 48 (s, 2H), 5.59 (s, 2H), 6.99-7.10 co2Me (m, 2H), 7.12-7.30 (m, 4H), 7.35 (d, J = 7. 2 Hz, 1H), 7.55 (d, J = 7. 5 Hz, 1H), 7.63 (d, J = 7. 8 Hz, 1H), 8.18 (dd, J = 1.5,7.9 Hz, IH), 8.63 (d, J = 1. 5 Hz, 1H) A A t T+E (DMSO-d,) 50. 89 (d, J=6. 6Hz, 6H), 449 (mut) 1. 40-1.50 (m, 2H), 1.58-1.65 (m, 1H), CN 5. 43 (s, 2H), 6.95-7.10 (m, 2H), 7. 10- 7.18 (m, 4H), 7.42-7.56 (m, 3H), 7.60 (d, J = 7. 5 Hz, 1H), 7.83 (d, J = 8. 4 Hz, 2H) (CDC13) 8 0. 95 (d, J=6. 5Hz, 6H), 453 (MIT) 23k 1. 42-1.51 (m, 2H), 1.63-1.78 (m, 1H), 4. 41 (t, J = 8. 4 Hz, 2H), 5.18 (s, 2H), CHO 5.59 (s, 2H), 6.88-6.89 (m, 1H), 7.02- 7.08 (m, 2H), 7.36-7.38 (m, 3H), 7.51- 7.62 (m, 3 H), 7.80-7.87 (m, 3H), 10.0 (s, 1 H) (CD30D) 8 0. 95 (d, J=6. 5 Hz, 6 H), 532 (MH) 231d o 0 1.61-1.66 (m, 3 H), 2.65 (s, 6 H), 4.50- N-CH3 4. 53 (m, 2 H), 5.27 (s, 2 H), 5.70 (s, 2 NC-HCH3 H), 7. 14-7.17 (m, 3 H), 7.25-7.28 (m, 1 H), 7. 53-7. 64 (m, 4H), 7.71-7.79 (m, 4 ), 7.53-7.64 m, (CD, OD) 8 0. 95 (d, J = 6. 5 Hz, 6 H), 503 (MH-) 23m 0 1. 61-1.66 (m, 3 H), 2.65 (s, 6 H), 4.50- , cl3 4. 53 (m, 2 H), 5.27 (s, 2 H), 5. 70 (s, 2 HJ H), 7. 14-7.17 (m, 3 H), 7.25-7.28 (m, 1 H), 7.53-7.64 (m, 4 H), 7.71-7.79 (m, 4 H) c (DMSO-d6) 6 0. 93 (d, J=5. = S. 5 Hz, 6H), 1. 15 (d, J = 6. 2 Hz, 6H), 1. 19 (d, J = 6. 2 Hz, 6H), 1.46-1.53 (m, 2H), 1.61- 1. 67 (m, 1H), 4.29-4.34 (s, 2H), 4. 35 (s, 2H), 4.52-4.62 (m, 2H), 5.37 (s, 2H), 6.98-7.07 (m, 2H), 7.09-7.26 (m, 4H), 7.48-7.56 (m, 2H) e (DMSO-d6) 6 0.89 (d, J = 6. 6 Hz, 6H), 230 1. 22-1.42 (m, 4H), 1.58-1.74 (m, 3H), 1. 91-2.01 (m, 2H), 3.88 (t, J = 6. 9 Hz, 2H), 4.29 (t, J = 8. 1 Hz, 2H), 4.58 (t, J = 8. 1 Hz, 2H), 5.35 (s, 2H), 6.98-7.07 (m, 2H), 7.14-7. 30 (m, 4H), 7.49 (d, J = 7. 7 Hz, 1H), 7.58 (d, J = 7. 4 Hz, 1H), 8.12 (t, J = 7. 1 Hz, 2H), 8.56 (t, J = 7. 9 Hz, 1H), 9.04 (d, J = 5. 5 Hz, 2H) e (CDCl3) 6 0. 85 (d, J=6. 6 Hz, 6H), o 23p'H3 1.06 (t, J = 7. 4 Hz, 3H), 1. 34-1. 41 (m, 2H), 1.61-1.86 (m, 3H), 3.87 (t, J = 7. 3 Hz, 2H), 4.25-4.31 (m, 2H), 5.53 (s, 2H), 6.95-7.08 (m, 3H), 7.23-7.31 (m, 3H), 7.40 (dd, J = 0. 6,1.6 Hz, 1 H), 7.77-7.80 (m, 1H) rv yun e (CDCI3) 80. 93 (d, J = 6. 6 Hz, 6H), 23q'1. 36-1. 43 (m, 2H), 1.60-1.73 (m, 1H), CH, 2. 08-2.20 (m, 2H), 2.40 (s, 6H), 2.54 (t, J = 6. 9 Hz, 2H), 4.00 (t, J = 6. 9 Hz, 2H), 4.26 (t, J = 6. 9 Hz, 2H), 5.38 (s, 2H), 6.90-7.10 (m, 3H), 7.22-7.31 (m, 3H), 7.37-7.40 (m, 1H), 7.74-7.80 (m, 1H) 23rb (CDC13) 8 0. 95 (d, J=6. 6Hz, 6H), 406 (MIl+) 'CH3 1. 35-1. 43 (m, 2H), 1.64-1.75 (m, 1H), 2. 36 (s, 6H), 2.67 (t, J = 7. 2 Hz, 2H), 4.05 (t, J = 7. 2 Hz, 2H), 4.27-4.32 (m, 2H), 5.42 (s, 2H), 7.00-7.11 (m, 3H), 7.28-7.34 (m, 3H), 7.40-7.43 (m, 1H), 7.79-7.83 (m, 1H) b (CDCI3) 60. 96 (d, J = 6. 6 Hz, 6H), 463 (MH-) 23s 1. 41 (s, 9H), 1. 65-1.74 (m, 1H), 2.72 (t, J = 7. 5 Hz, 2H), 4.18 (t, J = 7. 4 Hz, 2H), 4. 27-4.33 (m, 2H), 5.40 (s, 2H), 6.99-7.09 (m, 3H), 7.25-7. 31 (m, 3H), 7. 43 (d, J = 7. 4 Hz, 1H), 7.78-7.81 (m, in) b (CDCl3) 6 0. 95 (d, J = 6. 6 Hz, 6H), 449 (MH-) 23t 1. 26 (t, J=7. 1Hz, 3H), 1.36-1.44 (m, cO2Me 2H), 1.65-1.74 (m, 1H), 2.06-2.15 (m, 2H), 2.43 (t, J = 7. 2 Hz, 2H), 3.98 (t, J = 7. 2 Hz, 2H), 4.14 (q, J=7. 1Hz, 2H), 4.28-4.33 (m, 2H), 5.42 (s, 2H), 7.00- 7.11 (m, 3H), 7.28-7.34 (m, 3H), 7.44 (d, J = 7. 2 Hz, 1H), 7.79-7.82 (m, 1H) (CD30D) 8 1.66-1.72 (m, 2H), 1.83-45 () (MH) 23u 1. 88 (m, 2H), 2.41 (t, J = 7. 2 Hz, 2H), 3. 14 (s, 6H), 3. 62 (s, 3H), 3.87 (t, J= 8. 0 Hz, 2H), 4.02 (t, J=6. 8Hz, 2H), t9'Z7 f'Sf 7 _ 5. 19 (t, J=7. 8Hz, 2H), 5. 86 (s, 2H), 7. 67-7. 79 (m, 3H), 8.11 (d, J = 8. 0 Hz, 1H) 23Vb (CDC'3) 8 0. 95 (d, J=6. 56Hz, 6H), 4jut 1. 26-1.88 (m, 9H), 2. 36 (t, J = 6. 99, 2H), 3.94 (t, d = 7. 05 Hz, 2H), 4.29 (m, 2H), 5.41 (s, 2H), 6.95-7.81 (m, 8H) (CD30D) 8 0. 97 (dd, J=2. 8,6.6Hz, DUO tlVlN) 23w 6H), 1.36-1.64 (m, 2H), 1.68-1.78 (m, 1H), 3.67-3.72 (m, 1H), 3.70 (s, 3H), 0_4 3.84-3.87 (m, 1H), 4.02 (dd, J = 14. 1, 18. 0 Hz, 2H), 4.28-4.87 (m, 2H), 5.01- 5.12 (m, 1H), 5.47 (dd, J=16. 3,22.1 Hz, 2H), 7.05-7.17 (m, 3H), 7.28-7.33 (m, 3H), 7.49 (d, J = 7. 3 Hz, 1H), 7.65 (d,J=7. 1 Hz, lH) a, s2 3 use as base ;, use as base ; c, P used as base; d, prepared as described in J. Am. Chem. Soc. 1991,4208; e, NaH used as base.

Table 3-Compounds were prepared by convering the acetic acid or benzoic acid to an acid chloride with SOC12 or oxalyl chloride and treating the acid chloride with corresponding amine unless otherwise noted. IIFITfa a a (DMSO-d6) 8 0.92 (d, J=6. 5Hz, 6H), o Vui) 24a 1.15-1.28 (m, 5H), 1.38-1.60 (m, 2H), 1. 60-1. 75 (m, 3H), 1.99-2.20 (m, 1H), o 2. 20-2. 30 (m, 1H), 3.98-4.04 (m, 1H), 4.11 0 2. 20-2. 30 (m,, 4q62-4 84 (m, H), 4. 18-4. 31 (m, 3H), (s, 2H), 6.95-7.10 (m, 3H), 7.15-7.26 (m, 3H), 7.50 (d, J = 8. 0 Hz, 1H), 7.60 (d, J = 7.4 Hz, 1 H) (DMSO-d6) 60. 90 (dd, J = 2. 8,6.5 Hz, 525 (MH) 24b 6H), 1.35-1.45 (m, 2H), 1.47-1.71 (m, 1H), 3.17 (s, 3H), 4.00-4.21 (m, 1H), 4.32 o (t, J = 7. 2 Hz, 2H), 4.71 (s, 1H), 4.86 (s, 1 H), 5.40 (d, J = 4. 9 Hz, 2H), 6.92 (t, J = co2Me 7. 0 Hz, 1H), 6.99-7.07 (m, 2H), 7.16-7.34 (m, 3H), 7.50 (d, J = 7. 9 Hz, 1H), 7.59- 7.65 (m, 1H), 7.88 (d, J = 6. 5 Hz, 1H), 7.95 (d, J = 7. 6 Hz, 1H), 8.19 (d, J = 8. 1 Hz, IH), 8.35 (d, J = 7. 4 Hz, IH) (DMSO-d6) 6 0.90 (d, J = 6. 6 Hz, 6H), 539 (mu) 24c 1.30 (t, J = 7. 1 Hz, 3H), 1. 35-1. 55 (m, 2H), 1.61-1.75 (m, 1H), 4.26-4.33 (m, 4H), 4.79 o n (m, 2H), 5.39 (m, 2H), 7.02-7.06 (m, 2H), cozee . 16-7.28 (m, 5H), 7. 40-7.55 (m, 2H), H 7. 56-7.72 (m, 2H), 7.80-7.81 (m, 1H), 8.26 (s, 1H) (DMSO-d6) 8 0. 90 (d, J = 6. 6 Hz, 6H), (t, _ Z,,. 111,, 1. 51-1. 67 (m, 1H), 4. 24-4. 34 (m, 3H), 4. 81 yco 7.03-7.05 (m, 2H), 7.08-7. 26 (m, 4H), 7. 50 (d, J = 7. 6 Hz, "1 H), 7.62 (d, J = 7. 5 Hz, 1 H), 7.72 (d, J = 8.7 Hz, 2H), 7.92 (d, J = 8. 7 Hz, 2H) (CDC1,) 8 0.94 (d, J = 6. 54 Hz, 6H), 1.48 526 (MH) (m, 1H), 1.66 (m, 1H), 3.17 (s, 3H), 4.03 (m, 1H), 4.42 (m, 3H), 5.34 (m, 2H), 6.55 (m, 1H), 6.69 (d, J = 7. 68 Hz, 1H), 7.11 (m, 1H), 7.34 (m, 5H), 7.55 (t, J = 7. 65 Hz, 1H),7.66 (t, J = 7. 56 Hz, 1H), 7. 88 (d, J = 9. 06 Hz,. NCXos =9. 06 Hz, 1H), 8. 29 (d, J= 7. 65 Hz, 1H) 24f (m, 2H), 1.64 (m, 1H), 4.32 (m, 2H), 4.76 H (s, 2H), 5.44 (s, 2H), 7.07-7.76 (m, 11H), 8.24 (d, J = Hz, 1H), 8.66 (s, 1H) o ~ (CDCI3) 6 0. 96 (d, J=6. 6Hz, 6H, 1.52-516 (MHt) 1. 69 (m, 3H), 3.28 (s, 3H), 4.37 (m, 4H), 5. 52 (s, 2H), 6.83-7.89 (m, 12H) oml (CDCI3j ô 0.80 (d, J = 6. 6 Hz, 6H), 1.37324 (MH-) (m, 2H), 1.56 (m, 1H), 4.18 (m, 2H), 4.61 (s, 1H), 5.33 (s, 1H), 6.29 (m, 1H), 6.46 (m, 1H), 6. 58 (m, 1H), 6. 89-7.33 (m, H 8H), 7. 65 (m, 1H) (CD13) 6 0.97 (d, J = 6. 57 Hz, 6H), 1.29- 5I6 (MH) 0 1. 69 (m, 3H), 3.84 (s, 3H), 4.32 (m, 2H), 4 N100-C02CH3 4.72 (s, 1H), 5.46 (s, 1H), 6.55 (d, J = 3. 66 Hz, 1H), 6.91-7.43 (m, 8H, 7.77 (m, 1H) (CD13) 8 0.96 (d, J = 6. 51 Hz, 6H), 1.25 561 (MH) 24j (t, J = 7. 14 Hz, 3H), g M (m, lH), 3. 65 (s, 2H), 4. 06 (q, J=7. 14Hz, 2H), 4. 30 (m, 2H), 4. 81 (s, 2H), 5.42 (s, H 2H), 6.80 (s, 1H), 7.00-7.61 (m, 4H), 7.74 (m, 1H) (CD3) 8 0.99 (d, J = 6. 6 Hz, 6H), 1.57 476 (M) 24k (m, 2H), 1.74 (m, 1H), 4. 35 (m, 2H), 5.08 O N-N N)"S(s, 2H), 5. 52 (s, 2H), 7. 00-7. 45 (m, 7H), R (DMSO-d6) 6 0.90-0.98 (m, 6H), 1.15-1.23 4tY (MB) zozo o N-N (m, 2H), 1.60-1.72 (m, IH), 4.28-4. 35 (m, A. N 2H), 5.38 (s, 2H), 6.95-7.03 (m, 3H), 7.15- H H 7.29 (m, 3H), 7.47-7.51 (m, 1H), 7.51-7.63 (m,1 H) (CD3) 6 0.96 (d, J = 6. 57 Hz, 6H), 1.25 618 (Mllt) 24m o (t, J = 7. 05 Hz, 6H), 1.56 (m, 1H), 1.72 o OEt (m, 1H), 3.10 (d, J = 21. 45 Hz, 2H), 3.99 (m, 4H), 4.29 (m, 2H), 4.59 (s, 2H), 5.40 H (s, 2H), 7.05-7.37 (m, 9H), 7.46 (d, J = 8.19 Hz, 2H), 7.73 (m, 1H), 8.83 (s, 1H) a, prepared using D as coupling reagent.

Table 4-Acids were prepared by hydrolysis of the corresponding ester using NaOH/MeOH as previously described for compound 8. # R2 i »-NNlRData MS Data n _ (DMSO-d6) ô 0.87 (d, J = 6.5 Hz, 6H), 1.38- 629 (Mtl-) 25a Ho2c coiH 1. 52 (m, 2H), 1.58-1.63 (m, 1H), 3.38-3.48 (m, 1H), 4.24-4. 33 (m, 2H), 4.38 (s, 2H), 5.29 (s, NH 2H), 5.41 (d, J = 4.3 Hz, 2H), 6. 89-7.00 (m, 2H), 7.06-7.10 (m, 2H), 7.12-7.24 (m, 5H), 7. 46-7.58 (m, 3 H) 25b (DMSO-d6) 8 0. 90 (d, J = 6.5 Hz, 6H), 0.97- 608 25b 1.06 (m, 2H), 1.14-1.29 (m, 2H), 1.46-1.53 (m, 09_NHtE 3H), 1.62-1.69 (m, 1H), 1.80-1.98 (m, 4H), 2. 09-2.17 (m, 1H), 3.13 (t, J = 6.2 Hz, 2H), W 4. 40 (t, J = 8.0 Hz, 2H), 5.22 (s, 2H), 5.56 (s, 2H), 7.00-7.09 (m, 4H), 7.28-7.38 (m, 5H), 7.46-7.49 (m, 1H), 7.68 (d, J = 7.8 Hz, 2H), 8.58 (t, J=5. 7Hz, 1H) (CD30D) ôO. 90 (d, J = 6. 6 Hz), 1.36-1.43 (m, 664 (MH) 25c o 2 H), 1.59-1.69 (m, 1 H), 1.99-2.18 (m, 2 H), P (O) (OH) 2 4. 30-4.37 (m, 2), 4.46-4.57 (m, 1 H), 5.22 (s, 2 \o, H H), 5.49 (s, 2 H), 6.98-7.09 (m, 3 H), 7.15-7.19 (m, 1 H), 7.25-7.38 (m, 2 H), 7.42-7.51 (m, 3 H), 7.64-7.69 (m, 1 H), 7.89 (d, J = 8.4 Hz, 2 H) (DMSO-d6) 8 0. 91 (d, J = 6.6 Hz, 6H), 1.40- "y O'in 25d OMe 1.45 (m, 2H), 1.58-1.65 (m, 1H), 3.79 (s, 3H), > co2H 6.87 (d, J = 8. 1 Hz, 1H), 7. 02-7. 12 (m, 2H), 7.16-7.30 (m, 4H), 7.52 (d, J = 7.8 Hz, 1H), 7.58 (d, J=8. 1Hz, 2H) - (DMSO-d.) 8 0. 89 (d, J = 6.6 Hz, 6H), 1. 35-'vu 25e H-so2MO 1.42 (m, 2H), 1.58-1.60 (m, 1H), 2.98 (s, 3H), (MH+) 4. 25-4.39 (m, 2H), 5.38 (s, 2H), 5.42 (s, 1H), 5. 81 (s, 2H), 6.95-7.12 (m, 2H), 7.12-7.32 (m, Ho2cz 3H), 7.35-7.73 (m, 3H) (CD30D) 8 0. 91 (d, J = 6. 6 Hz, 6H), 1.40-1.47 513 (MH-) 25f co2H (m, 2H), 1.59-1.65 (m, 1H), 4.37 (t, J = 8. 0 Hz, 2H), 5.27 (s, 2H), 5.52 (s, 2H), 7.01-7.14 (m, 3H), 7.18-7.20 (m, 1H), 7.28-7.33 (m, 2H), co2H 7. 48 (d, J = 7.5 Hz, 1H), 7.66-7.69 (m, 1H), 8.12 (s, 2H), 8.56 (d, J = 1. 4 Hz, 1H) (DMSO-d6) 8 0.89 (d, J = 6.6 Hz, 6H), 1.32-474 (MS) 25g N 1.48 (m, 2H), 1.51-1.71 (m, 1H), 4.27-4.35 (m, /N COiH 2H), 4. 78-4.85 (s, 2H), 5.27-5.45 (s, 2H), 6.92- N=N 7. 05 (m, 2H), 7.10-7.28 (m, 4H), 7.50 (d, J = 7.9 Hz, 1H), 7.58-7.62 (m, 1H) (DMSO-d6) 8 0.92 (d, J = 6.6 Hz, 6H), 1.35- 503 (MH-) 25h 1. 51 (m, 4 H), 1.52-1.68 (m, 2H), 1.69-1.82 (m, 2H), 1.92-2.10 (m, 1H), 2.62-2.82 (m, 1H), 3. 08-3.18 (m, 1H), 3.71-3.88 (m, 1H), 3.90- N 9 co2H 4.02 (m, 1H), 4.29-4.36 (m, 2H), 4.77-4.85 (m, 1H), 5.36 (s, 2H), 7.01-7.16 (m, 3H), 7.18-7.28 (m, 3H), 7.49 (d, J = 7. 6 Hz, 1H), 7.61 (d, J = 7.3 Hz, lH) (DMSO-d,) 8 0. 89-0.93 (m, 6H), 1. 34-1. 48 (m, 503 (MH) 25i 4H), 1.58-1.68 (m, 2H), 1.72-1.93 (m, 1H), 1. 95-2.10 (m, 1H), 3.10-3.25 (m, 1H), 3.25- 0 3. 50 (m, 2H), 3.70-3.82 (m, 1H), 4.20-4.35 (m, 2H), 4.61-4.79 (m, 2H), 5.20-5.42 (m, 2H), 6. 82-7.01 (m, 3H), 7.15-. 26 (m, 3H), 7.48 (d, J = 8. 4 Hz, 1H), 7.62 (d, J=8. 1Hz, lH) (DMSO-d6) ô0. 90-0.93 (m, 6H), 1.23.1.65 (m, 8H), 2.27-2.32 (m, 1H), 2.51-2.71 (m, 1H), 4. 02-4.15 (m, 2H), 4.28-4. 38 (m, 2H), 4.50- o co, r, 4. 59 (m, 1H), 4.76-4.83 (m, 1H), 5. 36 (s, 2H), 6. 96-6.99 (m, 2H), 7.08-7.26 (m, 3H), 7.49 (d, J = 7. 4 Hz, 1H), 7.62 (d, J = 7. 4 Hz, 1H), 7.82 (d, J=7. 4 Hz, lH) 25k (DMSO-d,) 8 0.89 (d, J = 6.6 Hz, 6H), 1.30-421 (MH+) 1. 37 (m, 2H), 1.58-1.64 (m, 1H), 1.76-1.83 (m, COH 2H), l. 91 (t, J= 6. 9 Hz, 2H), 3. 85 (t, J= 7. 2 Hz, 2H), 4.29 (t, J = 8. 0 Hz, 2H), 5.36 (s, 2H), 6.95-7.06 (m, 2H), 7.15-7.26 (m, 3H), 7.34 (d, J = 7. 4 Hz, 1H), 7.48 (d, J = 7. 5 Hz, 1H), 7.61 (d, J=7. 4Hz, lH) (DMSO-d6) 6 0.89 (d, J = 6.6 Hz, 6H), 1.32-435 (MH+) 251 1. 42 (m, 2H), 1.44-1.52 (m, 2H), 1.59-1.67 (m, 3H), 1.97 (t, J = 6.9 Hz, 2H), 3.35 (t, J = 6.2 Hz, 2H), 3.85 (t, J = 6. 9 Hz, 2H), 4.26-4.32 (m, 2H), 5.36 (s, 2H), 6.96-7.07 (m, 2H), 7.15-7.26 (m, 4H), 7.48 (d, J = 7. 5 Hz, 1H), 7.60 (d, J = 7.2 Hz, 1 H) (CD30D) ô0. 94 (d, J = 6. 6 Hz, 6H), 1.31-1.51 44ç0dH) (m, 4H), 1.64-1.74 (m, 3H), 1.78-1.88 (m, 2H), 2. 19 (t, J = 7.6 Hz, 2H), 3.98 (t, J = 7.3 Hz, 2H), 4.34 (t, J = 8.2 Hz, 2H), 5.45 (s, 2H), 7.01-7.06 (m, 1H), 7.10-7.35 (m, SH), 7.47 (dd, J = 1. 7,6.9 Hz, 1H), 7.67 (dd, J = 1. 7,6.8 Hz, 1H) 25n (CDOD) 8 0. 94 (d, J = 6. 3 Hz, 6H), 1.39-1.48 492 (MH+) (m, 2H), 1.62-1.70 (m, 1H), 3.58-3.63 (m, 1H), 3.76 (s, 2H), 3.88 (t, J = 9. 3 Hz, 1H), 4.19-4.23 0_ (m, 1H), 4.29-4.41 (m, 2H), 4.91-5.02 (m, 2H), 5. 44 (s, 2H), 7.03-7.16 (m, 3H), 7.26-7.33 (m, 2H), 7.37 (d, J = 7.5 Hz, 1H), 7.46 (d, J = 7. 2 Hz, 1H), 7.63 (d, J=7. 2Hz, lH) Table 5-Phosponates. RZ ata a a 26' (DMSO-d6) ô 0.92 (d, J = 6.6 Hz, 6H), a o 1. 15 (t, J = 7.0 Hz, 6H), 1.38-1.46 (m, OEt 2H), 1.63-1.68 (m, 1H), 2.17-2.28 (m, 2H), 3.90-3.98 (m, 4H), 4.00-4.11 (m, 2H), 4.28-4.34 (m, 2H), 5. 35 (s, 2H), 6.98-7.09 (m, 2H), 7.15-7.24 (m, 4H), 7.50 (d, J= 7. 5 Hz, 1H), 7.59 (d, J = 7. 4 Hz, 1H) OlPr (CDC13) 8 0.96 (d, J = 6.7 Hz, 6H), 557 (MH) 26bb//OW/PiPr 1. 21 (d, J = 6.2 Hz, 6H), 1.27 (d, J = 6.2 Hz, 6H), 1.31-1.46 (m, 2H), 1.66- 1.75 (m, 1H), 3.74 (d, J = 8.4 Hz, 2H), 3.92 (t, J=5. 4Hz, 2H), 4.14 (t, J = 5. 4 Hz, 2H), 4.33 (t, J=8.2 Hz, 2H), 4.60- 4.71 (m, 2H), 5.43 (s, 2H), 7.02-7.16 (m, 3H), 7.29-7.32 (m, 3H), 7.44 (d, J = 7.3 Hz, 1H), 7.80-7.84 (m, 1H) a, prepared by 1, 4-addition to diethylvinyl phosphonate ; h, alkiyation using methanesulfonic acid 2- (diisopropoxy-phosphorylmethoxy)-ethyl ester.

Table 5-Phosphonate esters were cleaved with TMSBr. # R2'll-NMIt Data MS l) ata (CDCI3) ô 0.80 (d, J = 6.6 Hz, 6H), 1.12-1.22 27a 0 (m, 2H), 1.47-1.53 (m, 2H), 1. 54-1.70 (m, ,,, OH 2H), 3.90-4.05 (m, 2H), 4.19-4.24 (m, 2H), 5. 31 (s, 2H), 6.95 (t, J = 8.5 Hz, 1H), 7.05 (t, J = 7.7 Hz, 1H), 7.12-7.31 (m, 4H), 7.43 (d, J = 7.2 Hz, 1H), 7.58 (d, J = 7.2 Hz, 1H) (CD30D) 8 0.95 (d, J = 6.7 Hz, 6H), 1.36- 473 (MH') 27b OOH 1.44 (m, 2H), 1.62-1.74 (m, 1H), 3.56 (d, J = oh'oH 8. 9 Hz, 2H), 3.88 (t, J = 5.3 Hz, 2H), 4.23 (t, J = 5.4 Hz, 2H), 4. 35 (t, J = 8.1 Hz, 2H), 5.47 (s, 2H), 6.97-7.05 (m, 1H), 7.08-7.17 (m, 2H), 7.23-7.34 (m, 3H), 7.47 (d, J = 7.3 Hz, 1H), 7.63-7.68 (m, 1H)

Compound 28 Compound 6 (4.01 g, 12 mmol) in CH2Cl2 (60 mL) was slowly added to a suspension of a, a'-dibromo-p-xylene (15.84,60 mmol) and BTPP (9.9 g, 18 mmol) in a mixture of methylene chloride and THF (120 mL, 1: 1). The resulting mixture was stirred at room temperature for 1 h. The solvent was evaporated and the residue was purified by flash chromatography (EtOAc: hexane = 1 : 4 to 2: 1) to give a product which was triturated in EtOAc/EtO to provide 4.12 g (66% yield) of the compound 28 as a white solid: 'H NMR (DMSO-d6) 8 0. 91 (d, J = 6.6 Hz, 6H), 1.41-1.49 (m, 2H), 1.60-1.67 (m, 1H), 4.32 (t, J = 7.5 Hz, 2H), 4.68 (s, 2H), 5.12 (s, 2H), 5.43 (s, 2H), 7.00-7.04 (m, 2H), 7.15-7.22 (m, 4H), 7.35 (d, J = 8.1 Hz, 2H), 7.42 (d, J = 8.1 Hz, 2H), 7.52 (d, J = 7.8 Hz, 1H), 7.61 (d, J = 7.8 Hz, 1H) ; MS m/e 519, 517 (MH+) ; Anal. Calcd for C28H29BrN4O : C, 64.99; H, 5.65; N, 10.83 Found: C, 64.97; H, 5.50; N, 10.57 Compound 29 Bromide 28 (103 mg, 0.2 mmol) and N-methylaminoethanol (75 mg, 1 mmol) were stirred in methanol (3 mL) overnight. The solvent was evaporated. The residue was diluted with EtOAc, washed with water, dried over MgSO4, and evaporated. To the resulting residue in methanol (2 mL) was added IN HCl in ether (2 mL). The

solvent was evaporated and the residue was dried in vaccum. The solid was triturated in Et2O to give 99 mg (80% yield) of compound 29 as white powder: 'H NMR (DMSO-d6) 8 0.90 (d, J = 6.5 Hz, 6 H), 1.22-1.38 (m, 2 H), 1.49-1.71 (m, 1 H), 2.66 (d, J = 4. 8 Hz, 2 H), 2.97-3.08 (m, 2 H), 3.74 (t, J = 5. 6 Hz, 2 H), 4.24 (dd, J = 5. 4,13.0Hz, 1 H), 4. 34 (dd, J = 5. 1,13.0 Hz, 1 H), 4.46 (bt, J = 7. 8 Hz, 2 H), 5.15 (s, 2 H), 5.66 (s, 2 H), 7.03-7.09 (m, 2 H), 7.16-7.21 (m, 1 H), 7.35-7.52 (m, 5 H), 7.57 (d, J = 8. 1 Hz, 2 H), 7.74 (d, J=7. 2Hz, 1 H), 7.81 (d, J=7. 7Hz, 1 H); IR (KBr, cni-') 3307,2955,2594,1706,1613,1492,1461,1405,750; MS m/e 512 (MH+) ; Anal. Calcd for C32H40N502-2HCl H2O C, 62.23; H, 7.18; N, 11.34 Found : C, 61.96; H, 6.91; N, 11.48.

A mixture of bromide 28 (160 mg, 0.31 mmol) and triethyl phosphite (536 mg, 3.88 mmol) were stirred at 135 °C for 30 minutes. The mixture was cooled to room temperature, diluted with Et2O, washed with water, dried over MgS04, and evaporated. The product was initially an oil that slowly crystallized on standing.

The solid was filtered and rinsed with Et2O to give 160 mg (90% yield) of compound 30: 'H NMR (CDCl3) 8 0.95 (d, J = 6.6 Hz, 6H), 1.21 (t, J = 7.2 Hz, 6H), 1.41-1.49 (m, 2H), 1.66-1.75 (m, 1H), 3.11 (d, J = 21. 3 Hz, 2H), 3.93-4.04 (m, 4H), 4.33 (t, J = 8.1 Hz, 2H), 5.08 (s, 2H), 5.45 (s, 2H), 6.82 (dd, J = 2.1,6.6 Hz, 1H), 6.94-7.03 (m, 2H), 7.29-7.33 (m, 2H), 7.43-7.46 (m, 1H), 7.79-7.82 (m, 1H) MS m/e 575 (MH+).

Compound 31

Uracil (5.0 g, 44.6 mmol) and potassium carbonate (7.4 g, 53.5 mmol) were suspended in DMF. t-butyl bromoacetate (9.1 g, 46.8 mmol) was added and the reaction mixture was stirred at 40-50 °C for 18 hours. The solvent was evaporated.

The white residue was taken up in water and extracted with EtOAc and CHCl3. The organic extracts were dried over MgSO4 and evaporated. Column chromatography (gradient 2: 1 EtOAc/hexanes to 10: 1 EtOAc/MeOH) of the residue gave 8.1g (80% yield) of compound 31 as a white solid: 'H NMR (CDC13) 8 1.49 (s, 9 H), 4. 37 (s, 2 H), 5.75 (dd, J = 7.9,2.0 Hz, 1 H), 7.11 (d, J=7. 9Hz, 1 H), 9.22 (s, 1 H); IR (KBr, cm'') 3051,1745,1715,1681,1460,1234,1151; MS m/e 325 (MH+).

Anal. Calcd for C10H14N2O4: C, 53.09; H, 6.24; N, 12.38 Found: C, 53.09; H, 6.26; N, 12.43.

To ester 31 (30g, 132.6 mmol) in THF (20 ml) was added 4 N HC1 in dioxane (250 mL). The resulting slurry was stirred for 1 day. The solvent was evaporated and the residue was triturated in Et2O to give 21. 81 g (97% yield) of compound 32 as a white solid: 1H NMR (DMSO-d6) # 4. 41 (s, 2 H), 5.59 (d, J=7. 8Hz, 1 H), 7.61 (d, J=7. 8Hz, 1 H); MS m/e 171 (MH+).

Compound 33 Compound 33 was prepared using the same procedure as for compound 16 with 32 and di-t-butyl aspartate: 'H NMR (CDC13) 8 1.26 (s, 18H), 2.53 (dd, J = 4.2,17.4 Hz, 1H), 2.71 (dd, J = 4.8, 17.4 Hz, 1H), 4.20 (d, J = 15. 9 Hz, 1H), 4.32 (d, J = 15. 9 Hz, 1H), 4.48-4.50 (m, 1H), 5.55 (dd, J = 1.5,8.1 Hz, 1H), 7.01 (d, J = 8.1 Hz, 1H), 8.70 (bs, 1 H) ; MS m/e 398 (MH+).

Compound 34 A mixture of 33 (39.0 g, 98.1 mmol), a, a'-dibromo-p-xylene (77.8 g, 294 mmol) and BTPP (36. 8 g, 118 mmol) in THF (1 L) was stirred at room temperature for 1 h. After removal of the solvent, the residue was taken up in EtOAc (500 ml), washed with water, 1 N HCl and brine, dried over MgS04, and evaporated. The residue was purified by column chromatography eluted with EtOAc-hexanes (25% to 75%) to give 38.7 g (68% yield) of compound 34 as a white solid: 'H NMR (DMSO-d6) 8 1.39 (s, 9H), 1.40 (s, 9H), 2.58-2.70 (m, 2H), 4.38 (s, 2H), 4.48-4.55 (m, 1H), 4.69 (s, 2H), 4.96 (s, 2H), 5.78-5.80 (m, 1H), 7.20-7.24 (m, 2H), 7.38-7.40 (m, 2H), 7.64-7.66 (d, J = 7. 5 Hz, 2H), 8.64-8.66 (d, J = 7.5 Hz, 2H); MS m/e 580/582 (MH+) ; 468/470 [M-(t-Bu) 2+].

Compound 35 Compound 35 was prepared as described for compound 7 above.

'H NMR (CDCIs) 8 0.96 (d, J = 6.7 Hz, 6H), 1.44 (s, 9H), 1.51-1.74 (m, 3H), 4.32 (s, 2H), 4.43-4.49 (m, 2H), 5.06 (s, 2H), 5.08 (s, 2H), 5.71 (bs, 2H), 5.78 (d, J = 7.9 Hz, 1H), 6.88 (d, J = 8.0 Hz, 1H), 6.99-7.09 (m, 2H), 7.05 (d, J = 7.9 Hz, 1H), 7.24-7.28 (m, 4H), 7.39-7.44 (m, 4H), 7.95-8.01 (m, 1H) ; MS m/e 663 (MH).

Compound 36 Compound 36 was prepared in 49% yield using the same procedure of compound 19 with compound 7 and bromide 34: lH NMR (CDC13) å 0.92 (d, J = 6.7 Hz, 6H), 1.30-1.44 (m, 2H), 1.43 (s, 9H), 1.44 (s, 9H), 1.60-1.65 (m, 1H), 2.69 (dd, J=4.3Hz, 17.1 Hz, 1H), 2.89 (dd, J = 4.3,17. lHz), 4.29 (d, J = 15.8Hz, 1H), 4.27-4.35 (m, 2H), 4.43 (d, J 15. 8Hz, 1H), 4.63-4.66 (m, 1H), 5.05 (s, 2H), 5.06 (s, 2H), 5.49 (s, 2H), 5.49 (s, 2H), 5.77 (d, J = 7.8Hz, 1H), 6.85-6.97 (m, 1H), 6.86-7.00 (m, 1H), 7.14 (d, J = 7. 8Hz, 1H), 7.24-7.35 (m, 6H), 7.39 (d, J= 8.3Hz, 2H), 7.49 (d, J= 7.3 Hz, 1H), 7.82-7.84 (m, 1H) ; MS m/e 834 (MH+).

Table 7-Compounds listed below were prepared by treating compound 28 with a nucleophile as described for compound 29. -5F-R2 tH-NN1R Data MSData 4 OH (DMSO-d6) 6 0. 93 (d, J = 6. 5 Hz, 6H), 558 (MH-) 37a H<oH 1.48-1.53 (m, 2H), 1.63-1.69 (m, 1H), OH 3. 40-3.50 (m, 2H), 4.13-4.19 (m, 3H), 4.32-4.38 (m, 3H), 5.13 (s, 2H), 5.30 (b, 3H), 5.44 (s, 2H), 6.99-7.02 (m, 2H), 7.12-7.15 (m, 1H), 7.18-7. 30 (m, 3H), 7. 39-7. 46 (m, 4H), 7.54-7.60 (m, 2H), 8. 38-8. 42 (m, 2 H) (CD30D) 8 0. 99 (d, J = 6. 2 Hz, 6H), 538 (MH) 37b 1.42 (t, J = 7. 0 Hz, 9H), 1.65-1.77 (m, 3H), 3. 21-3.29 (m, 6H), 4.48 (s, 2H), Et 4.58 (t, J = 7.6 Hz, 2H), 5.25 (s, 2H), 5.76 (s, 2H), 7.17-7.18 (m, 3H), 7. 30- 7.33 (m, 1H), 7.56-67 (m, 6H), 7.76- 7.87 (m, 2H) (DMSO-d6) 8 0.91 (d, J = 6. 6 Hz, 6H), 526 (MR') 37c 1.43-1.50 (m, 2H), 1.60-1.67 (m, 1H), z--\, !/--OH 2. 97 (s, 6H), 3.34-3.40 (m, 2H), 3.84- @ Me 3. 93 (m, 2H), 4.32 (t, J = 8. 0 Hz, 2H), 4.54 (s, 2H), 5.17 (s, 2H), 5.31 (t, J= 4.8 Hz, 1H), 5.42 (s, 2H), 7.00-7.05 (m, 2H), 7.15-7.27 (m, 4H), 7.47-7.59 (m, 4H) (DMSO-d6) 8 0.92 (d, J= 6.6 Hz, 6H), 37d 1. 44-1.51 (m, 2H), 1.61-1.70 (m, 1H), 3. 01 (s, 3H), 3.23-3.28 (m, 2H), 3.43- (DN 3.55 (m, 2H), 3.83-4.01 (m, 4H), 4.33 (t, J = 8.0 Hz, 2H), 4.64 (s, 2H), 5.18 (s, 2H), 5.42 (s, 2H), 7.00-7.05 (m, 2H), 7.16-7.28 (m, 4H), 7.47-7.59 (m, 6H) (DMSO-d6) 8 0.92 (d, J= 6.6 Hz, 6H), 567 (MHU) 37e on 1.45-1.53 (m, 2H), 1.59-1.70 (m, 1H), 3. 56-3.62 (m, 8H), 3.84-3.90 (m, 2H), 3. 97-4.01 (m, 2H), 4.35 (t, J = 7. 9 Hz, 0 2H), 4.70 (s, 2H), 5.19 (s, 2H), 5.45 (s, 2H), 7.01-7.05 (m, 2H), 7.18-7.29 (m, 4H), 7.. 49-7.60 (m, 6H), 8.15 (bs, 2H) (DMSO-d6) 6 0. 16 (d, J=6. 6 Hz, 6H), 584 (ME) 37f 0.73-0.84 (m, 2H), 0.86-0.98 (m, 1H), M e 3. 52 (s, 3H), 3.61-3.69 (m, 2H), 4.07 (s, 4H), 4.15 (bs, 2H), 4.43 (bs, 2H), co2H 4.81 (bs, 2H), 6.28-6. 38 (m, 3H), 6.43- 6.50 (m, 1H), 6.62-6.80 (m, 6H), 6.84- 6.95 (m, 2H) (DMSO-d6) 8 0.88 (d, J = 6. 6 Hz, 6H), ° 37g ! 40-1. 48 (m, 2H), 1. 58-1. 67 (m, 11-1), vu 4. 31 (t, J = 8.0 Hz, 2H), 5.11 (s, 2H), 5. 41 (s, 2H), 5.81 (s, 2H), 6.98-7.02 (m, 2H), 7.11-7.27 (m, 4H), 7.41-7.58 (m, 6H), 8.12-8.17 (m, 2H), 8.60 (t, J = 7.8 Hz, 1H), 9.17 (d, J = 5. 4 Hz, 2H) _ (CD30D) 6 0.93 (d, J = 6.6 Hz, 6H), 523 (Min) 37h 1.40-1.48 (m, 2H), 1.60-1.72 (m, 1H), N NH 2. 38-2.50 (m, 4H), 2.84 (t, J = 5. 0 Hz, 4H), 3.50 (s, 2H), 4.33-4.39 (m, 2H), 5.16 (s, 2H), 5.49 (s, 2H), 6.99-7.11 (m, 3H), 7.16-7.21 (m, 1H), 7.26-7. 39 (m, 6H), 7.48 (dd, J = 1. 3,6.8 Hz, 1H), 7.65-7.68 (m, 1H) (CD3) 6 0.95 (d, J = 6.6 Hz, 6H), 637 (MHt) 37i 1. 41-1.49 (m, 2H), 1.46 (s, 9H), 1.66- t N N co2tsu 1. 75 (m, 1H), 2.45-2.90 (m, 8H), 3.13 (s, 2H), 4.32 (t, J = 8.1 Hz, 2H), 5.10 (s, 2H), 5.44 (s, 2H), 6.86-6.89 (m, 1H), 6.98-7.04 (m, 2H), 7.25-7.34 (m, 2H), 7.43-7.46 (m, 1H), 7.77-7.82 (m, in) (CDC1,) 8 0.95 (d, J = 6.6 Hz, 6H), 594 (MH) 37j OEI 1. 25 (t, J = 7. 1 Hz, 3H), 1.41-1.49 (m, 2H), 1.61-1.87 (m, 7H), 2.21-2.34 (m, i il 1H), 2.79-2.90 (m, 2H), 3.43-3.54 (m, 2H), 4.13 (q, J = 7. 1 Hz, 2H), 4.32 (t, J = 8.1 Hz, 2H), 5.09 (s, 2H), 5.44 (s, 2H), 6.87-6.90 (m, 1H), 6.97-7.02 (m, 1H), 7.26-7.34 (m, 8H), 7.43-7.47 (m, 1H), 7.77-7.82 (m, 1H) (CD30D) 8 0.99 (d, J = 6.2 Hz, 6H), 595 (MH-) 37k,, 1. 72-1.74 (m, 3H), 3.31-3.47 (m, 8H), 3. 79 (s, 3H), 3.86 (s, 2H), 4. 39 (s, 2H), 4. 62 (t, J = 6. 7 Hz, 2H), 5.23 (s, 2H), 5.83 (s, 2H), 7.20-7.21 (m, 3H), 7.34- 7. 36 (m, 1H), 7.53-7.61 (m, 4H), 7.68- 7.73 (m, 2H), 7.78-7.82 (m, 1H), 7.94- 7. 97 (m, 1H) (CDC13) 8 0.95 (d, J = 6.5 Hz, 6H), 6Oo (MHt) 1. 26 (t, J = 7. 1 Hz, 3H), 1.41-1.49 (m, 3H), 1.68-1.77 (m, 5H), 1.94-2.05 (m, 2H), 2.23 (d, J = 6. 9 Hz, 2H), 2.79-2.92 (m, 2H), 3.47-3.58 (m, 2H), 4.14 (q, J = 7. 1 Hz, 2H), 4.29-4.35 (m, 2H), 5.10 (s, 2H), 5.45 (s, 2H), 6.88-6.91 (m, 1H), 6.99-7.02 (m, 2H), 7.28-7.45 (m, 7H), 7.80-7.83 (m, 1H), 8.52-8.54 (m, 1H) 37 (DMSO-d6) 8 0. 90 (d, J = 6. 5 Hz, 6H), 513 (MH) ru 1. 48-1.53 (m, 2H), 1.63-1.69 (m, 1H), 3. 38-3.48 (m, 4H), 4.28-4.33 (m, 2 H), -\NH 4. 42 (s, 2H), 4.57 (t, J = 5.4 Hz, 2H), 5. 10 (s, 2H), 5.41 (s, 2H), 6.98-7.01 (m, 2H), 7.12-7.24 (m, 4H), 7.39-7.46 (m, 4H), 7.50-7.54 (m, 2H), 7.57-7.59 (m, 2H), 8.99 (b, 4H) (DMSO-d6) 6 0.91 (d, J = 6. 6 Hz, 6H), 543 (MH) 37n e-« 1. 42-1.47 (m, 2H), 1.61-1.67 (m, 1H), \ s^co2Ma 30 (s, 2H), 3. 57 (s, 3H), 3. 77 (s, 2H), co2Me 4. 30-4. 34 (m, 2H), 5.10 (s, 2H), 5.42 (s, 2H), 6.98-7.01 (m, 2H), 7.14-7.18 (m, 2H), 7.20-7.27 (m, 4H), 7.31-7.33 (m, 2H), 7.51 (d, J = 4. 8,1H), 7.60 (d, J=4. 7,1H) (DMSO-d6) 5 0.91 (d, J = 3. 9,6H), 556 (mut) 2H) 1.61-1.69 (m, 1H), 1.42-1.46 (m,, N, Me 2. 78 (s, 3H), 2. 91 (s, 3H), 3. 73 (s, 2H), s 31-4. 33 (m, 2H), 5. 09 (s, 2 H), 5. 42 (s, 2H), 6. 99-7. 01 (m, 2H), 7.14-7.33 J=4. 7, 1H) (m, 8H), 7. 51 (d, J = 4. 8, 1H), 7. 60 (d, J=4. 7,1H) 37p H 1.44 (m, 2 H), 1. 59-1. 71 (m, 1 H), 4 C 2. 46-2.55 (m, 1 H), 2.79-2.87 (m, 1 H), o=v S~co2H 3.68 (t, J = 7. 4 Hz, 1 H), 3.88 (s, 2 H), 4. 34 (t, J = 8. 0 Hz, 2 H), 5.14 (s, 2 H), 5.49 (s, 2 H), 7.01-7.09 (m, 3 H), 7.16- 7.19 (m, 1 H), 7.28-7.38 (m, 6 H), 7.45-7.49 (m, 1 H), 7.65-7.68 (m, 1 H) (CD30D) 8 0.95 (d, J = 6.6 Hz, 6H), 562 (MH-) 37q 1. 44-1.52 (m, 2H), 1. 65-1. 73 (m, 1H), , I 4. 21 (s, 3H), J = 8.2 Hz, 2H), N 4. 71 (s, 2H), 5. 19 (s, 2H), 5.51 (s, 2H), CHz 7.04-7.09 (m, 3H), 7.17-7.22 (m, 1H), 7.28-7.37 (m, 2H), 7.45 (d, J = 8. 2 Hz, 2H), 7.50-7.55 (m, 3H), 7.65-7.73 (m, 2H), 8.05 (d, J--, 8. 3 Hz, 1H), 8. 31 (t, J = 8. 1 Hz, 1H), 8.79 (d, J=5. 8Hz, lH) + (DMSO-d6) 8 0. 90 (d, J=6. 5 Hz, 6H), 5cl (MB) 37r 37r 1. 51-1. 58 (m, 2H), 1. 63-1. 69 (m, 1H), 3. 75-3.83 (m, 2H), 4.20-4.29 (m, 2H), 4.41-4.47 (m, 2H), 5.14 (s, 2H), 5.63 (s, 2H), 7.05-7.07 (m, 2H), 7.18-7.21 (m, 1H), 7. 31-7. 35 (m, 1H), 7.42-7.51 (m, 4H), 7.56 (d, J = 7. 4 Hz, 2H), 7.72 (d, J = 7. 6 Hz, 1H), 7.77 (d, J = 6. 9 Hz, 1H) (CD 0. 93 (d, J = 6.5 Hz, 6H), 696 (MHT) 37s O 1.40-1.48 (m, 2H), 1.62-1.71 (m, 1H), \__/N-/kNH COH 2. 54-2. 70 (m, I OH), 2. 92-3. 10 (m, 2H), 3. 53 (s, 2H), 4.36 (t, J = 8.1 Hz, 2H), 4.53 (t, J = 6.8 Hz, 1H), 5.17 (s, 2H), 5.50 (s, 2H), 7.00-7.10 (m, 3H), 7.17- 7.20 (m, 1H), 7.26-7.40 (m, 6 H), 7.47- 7.50 (m, 1H), 7.66-7.68 (m, 1 H) (DMSO-d6) 8 0. 89 (d, J = 6. 6 Hz, 6H), 566 (MH) 37t 1. 42-2.30 (1OH), 2.64-2.75 (m, 2H), 3. 31-3. 45 (m, 2H), 4.31 (t, J = 8. 0 Hz, O 2H), 5.10 (bs, 2H), 5.41 (s, 2H), 6.98- 7.01 (m, 2H), 7.14-7.26 (m, 8H), 7.50 (d, J=8. 0Hz, lH), 7.58 (d, J = 7. 5 Hz, 1H) 1H) (CD30D) 8 0.92 (d, J = 6.6 Hz, 6H), 681 (MH) 37u H 1. 38-1. 47 (m, 2H), 1.63-1.68 (m, 1H), "C,.-Cco,"1. 70-1.83 (m, 4H), 2.00-2.10 (m, 2H), 0 2. 16-2.25 (m, 1H), 2.66 (d, J = 6. 0 Hz, 2H), 2.84-2.93 (m, 2H), 3.50 (bs, 2H), 4.36 (t, J = 8. 3 Hz, 2H), 4.47 (t, J = 5. 8 Hz, 1H), 5.17 (s, 2H), 5.50 (s, 2H), 7.03-7.09 (m, 3H), 7.17-7.20 (m, 1H), 7.29-7.38 (m, 6H), 7.48 (d, J = 7. 2 Hz, 1H), 7.67 (d, J=7. 1Hz, lH) (DMSO-d6) 8 0. 89 (d, J = 6. 6 Hz, 6H), 580 (MH) 37v 1. 07-1. 23 (m, 2H), 1.40-1.47 (m, 2H), S NSCo, H 1. 58-1.69 (m, 4H), 1.80-1.94 (m, 2H), 2.11 (d, J = 6. 2 Hz, 2H), 2.67-2.75 (m, 2H), 3.32-3.38 (m, 2H), 4. 31 (t, J = 7. 9 Hz, 2H), 5.09 (s, 2H), 5.41 (s, 2H),

6. 98-7. 01 (m, 2H), 7. 14-7. 32 (m, 8H), 7.50 (d, J = 8.1 Hz, 1H), 7.59 (d, J = 7. 6 Hz, 1H) Compound 38 The t-butyl groups of ester 35 were removed with 4N HCl in dioxane using the procedure described for 32. The acid was then treated with 2 equivalents of 1 N NaOH in MeOH to provide a di-sodium salt of 38: 'H NMR (CD30D) 8 0.82 (d, J = 6.6 Hz, 6H), 1.29-1.37 (m, 2H), 1.51-1.57 (m, 1H), 2.60-2.63 (m, 2H), 4.23-4.28 (m, 2H), 4.40-4.53 (m, 3H), 5.00 (s, 2H), 5.06 (s, 2H), 5.40 (s, 2H), 5.67 (d, J = 8.1 Hz, 1H), 6.93-7.10 (m, 4H), 7.07-7.10 (m, 1H), 7.18- 7.30 (m, 6H), 7.40 (d, J = 6.9 Hz, 1H), 7.49 (d, J = 7.5 Hz, 1H), 7.59 (d, J = 6.9 Hz, 1H) ; IR (KBr, cm-') 3422,2957,1705,1662,1612,1493,1456,1407,747; MS m/e 722 (MH+).

Compound 39 Mercaptoethanol (3 g, 38.39 mmol) and K2CO3 (6.36 g, 46.01 mmol) were suspended in acetone (50 ml). Ethylbromoacetate (7.05 g, 42.21 mmol) was added. The resulting mixture was stirred at room temperature overnight. It was filtered and the filtrate was evaporated to give 6 g (95 % yield) of compound 39 as a yellow oil.

Compound 40 DEAD (506.77 mg, 2.9 mmol) was added to a stirred mixture of 2-oxo-2, 3-dihydro- benzoimidazole-1-carboxylic acid ethyl ester (500 mg 2.42 mmol) (Meanwell et al, J Org. Chem. 1995,60,1565-1582.), PPh3 (763.21 mg, 2.90 mmol), and (2-hydroxy- ethylsulfanyl)-acetic acid ethyl ester (497.75 mg, 3.03 mmol) in dry THF (20 ml) at room temperature. The mixture was stirred for 48 hours. The solvent was removed and the residue purified by column chromatography (25 % EtOAc/Hexane) to give 422 mg (49% yield) of the desired compound 40.

Compound 41 Compound 40 (400 mg, 1.13 mmol) in THF (5 ml) was stirred with 21% NaOEt in EtOH (23.15 mg, 0.43 mmol) at room temperature overnight. The mixture was evaporated to give 284 mg (89 % yield) of compound 41.

Compound 42 Compound 42 was prepared as with [2- (2-oxo-2, 3-dihydro-benzoimidazol-1-yl)- ethylsulfanyl]-acetic acid ethyl ester and compound 6 as described for compound 7.

'H NMR (DMSO-d6) 8 0. 90 (d, J = 6. 6,6 H), 1.18 (t, J = 7. 1,3 H), 1.37-1.44 (m, 2 H), 1.59-1.65 (m, 1 H), 2.94 (t, J = 6.8,2 H), 3.45 (s, 2 H), 4.01-4.13 (m, 4 H), 4.26- 4.32 (m, 2 H), 5.36 (s, 2 H), 6.98-7.08 (m, 2 H), 7.14-7.28 (m, 4H), 7.48 (d, J = 7.4, 2H), 7.59 (d, J = 7.4,2H); MS m/e 481 (MH+).

Compound 43 Compound 42 (110 mg, 0.23 mmol) was dissolved in MeOH (10 ml). 1N NaOH (13.73 mg, 0.34 mmol) was added. The reaction was stirred overnight then the solvent was removed. The residue was adjusted to pH 5 with 1N HCI. The white precipitate was filtered, washed with water and dried under vacuum to give 54 mg (52% yield) of compound 43 as a white solid.

'H NMR (DMSO-d6) 8 0.89 (d, J = 6. 6,6H), 1.34-1.39 (m, 2H), 1.59-1.65 (m, 1H), 2.81 (t, J = 7. 1,2H), 3.01 (s, 2H), 4.08 (t, J = 6. 8,2H), 4.28 (t, J = 8. 0,2H), 5.35 (s, 2H), 6.95-7.05 (m, 2H), 7.14-7.25 (m, 3H), 7.38 (d, J = 6.9,1H), 7.48 (d, J = 7.6, 1H), 7.59 (d, J = 7.4,1H); MS m/e 453 (MH+).

Compound 44 Compound 43 (100 mg, 0.22 mmol) was dissolved in acetic acid (7 ml). Sodium perborate tetrahydrate (37.39 mg, 0.24 mmol) was added The mixture was heated at 50°C overnight. Then the acetic acid was removed. The residue was taken into water and acidified with 1N HCl to pH 5. The product was extracted with EtOAc.

The combined organic extracts were dried over Na2SO4, and evaporated to give 63 mg (61% yield) of the compound 44.

'H NMR (DMSO-d6) 8 0.88 (d, J = 6.6,6 H), 1.23 (t, J = 7.1,2 H), 1.32-1. 39 (m, 2 H), 1.56-1.65 (m, 2 H), 3.16 (s, 1 H), 3.88-3.95 (m, 1 H), 4.25-4.32 (m, 2 H), 5.35 (s, 2 H), 6.97-7.08 (m, 2 H), 7.14-7.29 (m, 4 H), 7.48 (d, J = 7. 4,1H), 7.59 (d, J = 7. 0, 1H) ; MS m/e 469 (MH+).

Compound 45 Compound 44 (110 mg, 0.24 mmol) was dissolved in acetic acid (7 ml). Sodium perborate tetrahydrate (149. 58 mg, 0.97 mmol) was added and the mixture heated at 55 °C overnight. Acetic acid was removed and the residue taken into water and acidified with 1N HCl to pH 5. The aqueous layer was extracted with EtOAc. The combined organic extracts were dried over Na2SO4, and evaporated to give 63 mg (53% yield) of compound 45 as a white solid.

'H NMR (DMSO-d6) 8 0.90 (d, J = 5. 0,6H), 1.35-1.51 (m, 2H), 1.56 (s, 2H), 1.60- 1.70 (m, 2H), 3.70-3.75 (m, 2H), 4.28-4.33 (m, 3H), 5.35 (s, 2H), 6.98-7.06 (m, 2H), 7.13-7.26 (m, 4H), 7.47-7.51 (m, 1H), 7.56-7.62 (m, 2H) ; MSm/e 485 (MH+).

Compound 46 A solution of compound 6 (50 mg, 0.15 mmol) and triethylamine (15 mg, 0.15 mmol) in DMF (2 mL) was cooled to 0°C. To this solution was added ethyl isocyanate (11 mg, 0.15 mmol) and the resulting mixture was stirred at 0°C for 4 hours. The reaction mixture was diluted with EtOAc, washed with H2O, and dried over MgSO4. Purification by flash column chromatography (straight EtOAc) gave 30 mg (49% yield) of compound 46: 'H NMR (CDCl3) 8 0.93 (d, J = 6.7 Hz, 6H), 1.28 (t, J = 7. 3 Hz, 3H), 1.32-1.40 (m, 2H), 1.63-1.72 (m, 1H), 3.44-3.54 (m,. 2H), 4.24-4.30 (m, 2H), 5.46 (s, 2H), 7.13- 7.18 (m, 2H), 7.31-7.32 (m, 3H), 7.45-7.54 (m, 1H), 7.80-7.83 (m, 1H), 8.18-8.21 (m, IH), 8.63-8.70 (m, 1H) ; MS m/e 406 (MH+).

Table 8-The compounds were prepared from compound 6 and commercially available isocyanates using the method above. # Rz i-NMR Data MS Data (CDC1,) 8 0.98 (d, J = 6. 8 Hz, 6H), 1.42----NO-aata 1. 50 (m, 2H), 1.67-1.78 (m, 1H), 4.29- -4 v 4. 35 (m, 2H), 5.48 (s, 2H), 7.18-7.23 (m, 3H), 7.29-7.36 (m, 3H), 7.43 (t, J = 7.9 Hz, 2H), 7.52-7.55 (m, 1H), 7.63- 7.68 (m, 2H), 7.80-7.84 (m, 1H), 8.27- 8.33 (m, 1H), 10.88 (s, 1H) (CD3) 6 0.87 (d, J = 6. 6 Hz, 6H), 1.29- 468 (MH-) 47b 1. 38 (m, 2H), 1.58-1.69 (m, 1H), 4.19- 4. 25 (m, 2H), 4.65 (d, J = 5. 8 Hz, 2H), 539 (s, 2H), 7.12-7.16 (m, 2H), 7.27- 7.38 (m, 8H), 7.42-7.46 (m, 1H), 7.77- 7.80 (m, 1H), 8.20-8.23 (m, 1H), 9.11- 9.16 (m, 1H) (CDCI3) o0. 97 (d, J = 6. 7 Hz, 6H), 1.42 526 (MH+) 47c o co2ee (t, J=7. 1Hz, 3H), 1.43-1.51 (m, 2H), 1. 68-1.77 (m, 1H), 4.28-4.34 (m, 2H), HN__a 4.40 (q, J = 7. 1 Hz, 2H), 5.46 (s, 2H), 7.20-7.25 (m, 2H), 7.28-7.33 (m, 3H), 7.53-7.56 (m, 1H), 7.73 (d, J = 8. 7 Hz, 2H), 7.78-7.82 (m, 1H), 8.10 (d, J=8. 7 Hz, 2H), 8.26-8.29 (m, 1H), 11.14 (s, 1H) 47d (CDCI3) 8 0.96 (d, J = 6. 6 Hz, 6H), 1. 33 464 (MH") , 9 (t, J= 7.1 Hz, 3H), 1.39-1.47 (m, 2H), _y 1. 64-1.75 (m, 1H), 4.00 (d, J = 5. 3 Hz, HN ColEt lH), 4.18-4.32 (m, 5H), 5.42 (s, 2H), 7.13-7.19 (m, 2H), 7.28-7. 35 (m, 3H), 7.46-7.52 (m, 1H), 7.77-7.81 (m, 1H), 8.14-8.20 (m, 1H), 9. 30 (t, J = 5. 3 Hz, 1H) (DMSO-d6) o0. 98 (d, J = 6. 2 Hz, 6H), 456 (MM") 47e o 1.67-1.77 (m, 3H), 4.51 (t, J = 7. 9 Hz, 4 SOXH 2H), 5.75 (s, 2H), 7.20-7.28 (m, 2H), NH 7. 33-7. 40 (m, 1H), 7.46-7.56 (m, 2H), 7.71 (d, J = 7. 3 Hz, 1H), 7.88 (d, J = 8. 0 Hz, lH), 8.09-8.14 (m, 1H), 10.18 (s, 1H) (DMSO-d6) 8 0.91 (d, J = 6. 6 Hz, 6H), 603 (MM-) 47f oo 1.41-1.48 (m, 2H), 1.63-1.67 (m, 1H), NH 4.34 (t, J = 7. 7 Hz, 2H), 5.05 (s, 2H), /\=/uc H 5. 46 (s, 2H), 6.87 (s, 1H), 7.01 (t, J = 3. 7 Hz, 2H), 7.15-7.33 (m, 5H), 7.42 (d, J = 8.6 Hz, 2H), 7.52-7.64 (m, 4H), 7.85 (d, J=8. 7Hz, 2H), 8.96 (s, 1H), 9.20 (s, 1H) . (CD30D) 6O. 90 (d, J = 6. 6 Hz, 6H), 718 (MH g 0 1. 36-1.48 (m, 2H), 1.57-1.69 (m, 1H), 2. 73-2.88 (m, 2H), 4.27-4.42 (m, 2H), 4. 61-4.74 (m, 1H), 5.11 (s, 2H), 5.47 (s, O COyH 2H), 7.00-7.14 (m, 4H), 7.26-7.32 (m, 4H), 7.35-7.52 (m, SH), 7.63-7.66 (m, 1H), 7.83 (d, J = 8. 7 Hz, 2H), b (DMSO-d6) 6 0.91 (d, J = 6. 5 Hz, 6H), 746 (MH+) 7 1. 41-1.48 (m, 2H), 1.60-1.67 (m, 1H), 2. 77-2.98 (m, 2H), 3.61 (s, 3H), 3.64 (s, L.. o, M. 3H) 2 (t, J = 7. 8 Hz, 2H), 4.78-4.85 (m, 1H), S. OS (s, 2H), 5.42 (s, 2H), 6.99- 7.02 (m, 2H), 7.15-7.24 (m, 4H), 7.31 (d, J=8. 6Hz, 2H), 7.42 (d, J = 8. 6 Hz, 2H),7.52 (d, J=8.9 Hz, 3H), 7.60 (d, J = 7.6 Hz, 1H), 7.78 (d, J=8.7 Hz, 2H), 8.74-8.77 (m, 2H), 8.94 (s, H) a, hydrolysis o a as described tor compound 8 ; b, amide bond formation as described for compound 9.

Compound 48

Compound 47e (100 mg, 0.22 mmol) was heated at 100 °C for 2 hours in a mixture of DMF (10 ml) and H20 (30 mL). The aqueous reaction mixture was extracted with EtOAc. The organic extracts were dried over MgS04, evaporated, and purified by flash column chromatography (straight EtOAc) to give 18 mg (22% yield) of compound 48: 'H NMR (CDCl3) 6 0. 98 (d, J = 6.8 Hz, 6H), 1.38-1.46 (m, 2H), 1.68-1.76 (m, 1H), 4.28-4.33 (m, 2H), 5.49 (m, 2H), 7.17-7.28 (m, 2H), 7.33-7.35 (m, 2H), 7.53-7.56 (m, 1H), 7.82-7.86 (m, 1H), 8.18-8.21 (m, 1H), 8.63 (bs, 1H).

Compound 49

Compound 49 was prepared from compound 2 and (2-Oxo-2, 3-dihydro- benzoimidazol-1-yl)-acetic acid methyl ester (Meanwell et al, J. Org. Chem. 1995,60, 1565-1582.) as described for compound 3 without treatment with tetrabutylammonium fluoride hydrate.

'H NMR (CDCl3) 8 3.41 (s, 3H),. 77 (s, 3H), 4.65 (s, 2H), 5.57 (s, 2H), 6.92-7.11 (m, 1H), 7.11-7.27 (m, 3H), 7.32-7.46 (m, 3H), 7.66 (d, J = 9.0 Hz, 1H), 7.67-7.83 (m, 1 H), 7.88 (d, J=9. 0Hz, 1H) ;

MS m/e 414 (MH+); Anal. Calcd for Cl9Hl8N405S : C, 55.07; H, 4.38; N, 13.52 Found: C, 55.38; H, 4.58; 13.64.

Compound 49a Compound 49 (3 g, 7.23 mmol) and tetrabutylammonium fluoride (1.89 g, 7.23 mmol) were refluxed in THF (300 ml) for 3 hours. After cooling, the solvent was evaporated. The residue was diluted with water and extracted with diethyl ether and EtOAc. The combined organic extracts were dried over Na2SO4, and evaporated to give 2.3 g (96% yield) of the desired compound 49a as a yellow solid.

'HNMR (DMSO-d6) 5 3.61 (s, 3H), 4.79 (s, 2H), 5.29 (s, 2H), 7.00-7.21 (m, 6H), 7.43 (d, J = 8. 3 Hz, 1H), 7.53 (d, J=8. 3Hz, lH).

MS m/e 336 (MH+).

Compound 49a and 49b To compound 49a (300 mg, 1.02 mmol) in DMF (10 ml) was added NaH (60% in mineral oil, 45.2 mg, 1.13 mmol) at room temperature. After stirring for 1 hour, 1-bromo-3-methyl-2-butene (168.42 mg, 1.13 mmol) was added and the mixture was stirred overnight. The mixture was diluted with water and extracted with EtOAc. The combined organic extracts were washed with brine, dried over Na2SO4 and evaporated. The residue was purified by column chromatography (hexane/EtOAc = 4: 1) to afford 76 mg (18% yield) of compound 49b and 120 mg (25% yield) of compound 49c both as a white solids.

Compound 49b: 'H NMR (DMSO-d6) 8 1.65 (s, 3H), 1.86 (s, 3H), 3.70 (s, 3H), 4.80 (s, 2H), 4.95- 4.98 (m, 2H), 5.03-5.05 (m, 1H), 5.38 (s, 2 H), 7.01-7.08 (m, 2H), 7.15-7.25 (m, 4H), 7.43 (d, J= 7.5,1H), 7.59 (d, J= 7.4,1H); MS m/e 405 (MHt).

Compound 50 To compound 3 (1. 5 g, 4.929 mmol) suspended in CH3CN (30 ml) was added acrylonitrile (523 mg, 9.858 mmol) followed by MTBD (38 mg, 0.246 mmol). The reaction mixture was heated at 50-60 °C for 16 hours. The solution became transparent. The solvent was stripped. The yellow oil residue was taken up in ether and triturated to give 1.67 g of compound 50 as a pale yellow solid: 'H NMR (CDC13) 8 2.26 (s, 3H), 2.75 (t, J = 6.7 Hz, 2H), 4.82 (t, J = 6.7 Hz, 2H), 5.24 (s, 1H), 5.41 (s, 1 H), 5.45 (s, 2H), 7.11-7.16 (m, 3H), 7.31-7.37 (m, 3H), 7.57- 7.60 (m, 1H), 7.81-7.85 (m, 1H); IR (KBr, cm-1) 3005,1686,1655,1615,1508,1487,1427,1400,745; MS m/e 358 (MH+) ; Anal. Calcd forC2, H, 9N50 : C, 70.57; H, 5.36; N, 19.59 Found: C, 70.42; H, 5.51; N, 19.61 Compound 51

Compound 51 was prepared as described for compound 6.

'H NMR (DMSO-d6) 8 3. 20 (t, J = 6. 7 Hz, 2H), 4.89 (t, J = 6. 8 Hz, 2H), 5.60 (s, 2H), 6.97-7.08 (m, 3H), 7.27 (d, J = 6.6 Hz, 1H), 7.39-7.50 (m, 2H), 7.69 (d, J = 7.5 Hz, 1H), 7.95 (d, J = 7.8 Hz, 1H), 11.20 (s, 1H).

Compound 52 Nitrile 50 (9.19 g, 25.71 mmol), ammonium chloride (4.13 g, 77.13 mmol) and sodium azide (5.01 g, 77.13 mmol) were stirred in DMF (100 mL) at 100 °C for two days.

The solvent was evaporated and the residue diluted with water and the pH was adjusted to 5 with concentrated HC1 and the solid was filtered. The collected solid was triturated with hot methanol to give 8.85 g (86% yield) of compound 52 as a solid. To the suspension of the tetrazole (6.30 g) in methanol was added 1 equivalent of 1 N NaOH. The suspension was then heated to dissolve the solid and solvent was evaporated. The residue was dried in vacuum and triturated in ether to give 6.36 g of the sodium salt of compound 52: 'H NMR (DMSO-d6) 8 2.15 (s, 3H), 3.43 (t, J = 7.1 Hz, 2H), 4.84 (t, J = 7.1 Hz, 2H), 5.20 (s, 1H), 5.38 (s, 2H), 5.40 (d, J= 1.2 Hz, 1H), 7.04-7.09 (m, 2H), 7.16-7.26 (m, 4H), 7.53-7.58 (m, 2H) ; IR (KBr, cm') 3407,2484,2115,1701,1656,1613,1487,1396,1156,751.

MS m/e 401 (MH), Anal. Calcd for C21H20N8O : C, 62.99; H, 5.03; N, 27.98 Found: C, 59.91; H, 5.20 ; N, 28. 30 Compound 53 Compound 53 was prepared as described for compound 52 except 1-methyl-2- benzimidazolone was used in the coupling step.

'H NMR (CD30D) 8 3.33 (t, J = 6.9Hz, 2H), 3.46 (s, 3H), 4.79 (t, J = 6.9 Hz, 2H), 5.21 (s, 2H), 6.99 (d, J = 7.0Hz, 1H), 7.07-7.31 (m, 5H), 7.50-7.54 (m, 2H); MS m/e 375 (MH+) ; Compound 54 To a solution of compound 52 (2.0 g, 4.99 mmol) and 1 N NaOH (4.99 mmol) in methanol (20 mL) was added 10% Pd/C (0.5 g). The mixture was hydrogenated on a Parr shaker for 3 days. The catalyst was removed by filtration. The filtrate was evaporated, and the residue was purified using C18 column chromatography (H2O : MeOH (1% TFA) = 10 : 1 to 10: 6 as eluant) to give 1.52 g (72% yield) of compound 54 as a white solid:

'H NMR (CDCl3) # 1. 46 (d, J = 7.0 Hz, 6 H), 3.10 (t, J = 6.6 Hz, 2 H), 4.58-4.71 (m, 1 H), 4.68 (t, J = 6.6 Hz, 2 H), 5.13 (s, 2 H), 6.94-7.22 (m, 5 H), 7.31 (d, J = 7.9 Hz, 1 H), 7.49 (t, J =8. 6Hz, 2H) ; IR (KBr, cm'') 3384, 1696,1490,1410,751.

MS m/e 403 (MH+) ; Anal. Calcd for C21H22N8O#H2O C, 57.01; H, 5.24; N, 25.33 Found: C, 56.78; H, 5.62; N, 24.93 Compound 55 Compound 55 was prepared from compound 52 as described for compound 6.

'H NMR (CD30D) 8 3.78 (t, J = 6.6 Hz, 2H), 5.19 (t, J = 6.6Hz, 2H), 5.89 (s, 2H), 7.14-7.21 (m, 3H), 7.31-7.35 (m, 1H), 7.62-7.74 (m, 3H), 7.98 (dd, J=1. 6,7.0Hz, 1H) ; MS m/e 361 (MH+).

Compound 56

Compound 55 (31.3 g, 86.85mmol), triethylamine (13.19 mmol) and trityl chloride (26.64 mmol) were mixed in DMF (0.5 mL) and were stirred at 70 °C for 16 hours. To the mixture additional triethylamine (13.19 g) and trityl chloride (9.52 g) were added and the resulting mixture was stirred for an additional 2 hours. The solvent was evaporated, and the residue was triturated in 1 N NaOH solution and filtered. The solid collected was triturated in hot methanol, cooled to room temperature and filtered to give 44.0 g (84% yield) of compound 56 as a white powder. The filtrate was concentrated to give additional 4.1 g (8% yield) of compound 56.

'H NMR (DMSO-d6) 8 3.46 (t, J = 6.3 Hz, 2H), 4.82 (t, J = 6.3 Hz, 2H), 5.15 (s, 2H), 6.81- 7.14 (m, 12H), 7.27-7.37 (m, 10H), 7.56 (dd, J = 1. 5,6.7 Hz, 1H) ; MS m/e 625 (MH+) ; Anal. Calcd forC37H3oN8O : C, 73.74; H, 5.02; N, 18.59 Found: C, 73.46; H, 5.07; N, 18.31.

Compound 57 (General Method) Compound 56 (500 mg, 0.83 mmol) was suspended in THF (15 mL) or THF/DMF (10 mL/2 mL) and the base BTPP (518 mg, 1.66 mmol, 2 eq) was added

at room temperature. This solution was allowed to stir for 15-30 minutes at which time the alkyl or benzyl halide (0.91 mmol, 1.1 eq) was added. The reaction was stirred 16 hours at room temperature under N2 atmosphere. The solvent was evaporated and the resulting residue was taken up in water and extracted with ether, ethyl acetate, or methylene chloride. The combined organic extracts were dried over MgS04, filtered, and evaporated. The crude product was purified by flash chromatography on silica gel using a mixture of solvents such as ethyl acetate, hexanes, methylene chloride and methanol.

Table 9-Alkylation of compound 56 with alkyl halide as described above. ata MS Data 57a CHZCHzGOzEt (DMSO-d6) 2. 56 (t, J = 6. 9 Hz, 2 H),---764 (MH+)-- 3.41 (t, J=6. 3Hz, 2H), 4.07 (t, J=6. 6 Hz, 2 H), 4.19 (d, J = 5. 9 Hz, 2 H), 4.79 (t, J = 6. 7 Hz, 2 H), 5.20 (s, 2 H), 6.82-6.93 (m, 7 H), 6.99-7.22 (m, 9 H), 7.27-7.36 (m, 11 H), 7.56-7.58 (m, 1 H), 8.49 (t, J=5. 8Hz, lH) 0 (DMSO-d6) 2, 56 (t, J = 6.9 Hz, 211), 764 (M11+) /NJTNX 3. 41 (t, J = 6. 3 Hz, 2 H), 4.07 (t, J = 6. 6 Hz, 2H), 4.19 (d, J=5. 9Hz, 2H), 4.79 (t, J = 6. 7 Hz, 2 H), 5.20 (s, 2 H), 6.82-6.93 (m, 7 H), 6.99-7.22 (m, 9 H), 7.27-7.36 (m, 11 H), 7.56-7.58 (m, 1 H), 8.49 (t, J=5. 8Hz, lH) 7 ; 7 CH20CH3 (DMS ()-d6) 3.23 (s, 3 H), 3.45 (t, J = 647 (MH+) 6.6 Hz, 2 H), 4.82 (t, J = 6. 6 Hz, 2 H), 5.22 (s, 2 H), 5.26 (s, 2 H), 6.82-6.85 (m, 6 H), 6.97 (dd, J=1. 1, 7.7 Hz, I H), 7.02-7.16 (m, 3 H), 7.22-7.35 (m, 12 H), 7.55 (dd, J = 2. 4,7.6 Hz, 1 H) 57d (CDC13) 3.26 (t, J = 6.9 Hz, 2 H), 4.56 719 (Mll+) (d, J = 6. 0 Hz, 2 H), 4.82 (t, J=6. 9Hz, 2 H), 5.27 (s, 2 H), 6.15-6.25 (m, 1 H), 6.53,6.58 (bs, 1 H), 6.90-6.99 (m, 9 H), 7.12-7.39 (m, 18 H), 7.76 (d, J = 7.9 Hz, lH) 57e (CDC13) 1.77-1. 94 (m, 4 H), 3. Z7 (t, J = =6. 8Hz, 2H), 3.88 (t, J=6. 9Hz, 2 H), 3.94 (t, J = 6. 0 Hz, 2 H), 4.80 (t, J = 6.8 Hz, 2 H), 5.24 (s, 2 H), 6.83 (dd, J = 1. 0,8.7 Hz, 2 H), 6.90-7.01 (m, 11 H), 7.12-7.37 (m, 14 H), 7.75 (d, J = 8.0 Hz, l H) 57f I- (CDC13) 3.28 (t, J 6. 8 Hz, 2 H), 3.83 751 (MH+) (s, 3 H), 4.76 (t, J = 6. 9 Hz, 2 H), 5.20 (s, 2 H), 5.30 (s, 2 H), 6.76-6.77 (m, 1 H), 6.90-7.00 (m, 8 H), 7.14-7. 38 (m, 15 H), 7.49-7.60 (m, 2 H), 7.77 (d, J = 8.0 Hz, 1 H) 57g (C ; 17C ; 13) 3.27 (t, J = 7.0 Hz, 2 H), 4.83 738 (MH+) (t, J = 7. 0 Hz, 2 H), 5.02 (s, 2H), 5.30 (s, 2 H), 6.77-6.79 (m, 1 H), 6.94-7.00 (m, 8 H), 7.18-7.39 (m, 12 H), 7.41- 7.47 (m, 2 H), 7.58 (d, J = 7.4 Hz, 1 H), 7.77 (d, J = 7.9 Hz, 1 H), 8.09-8.12 (m, 2H) 57h (UDC13) 0.02 (s, 911), 0. 91 (t, J = ö. l 733 (MH+) Hz, 2 H), 3.30 (t, J = 6.8 Hz, 2 H), 3.59 (t, J = 8. 3 Hz, 2 H), 4.82 (t, J = 6. 9 Hz, 2 H), 5.22 (s, 2 H), 5.26 (s, 2 H), 6.93- 6.97 (m, 6 H), 7.02-7.23 (m, 6 H), 7.29-7.35 (m, 9H), 7.39 (d, J = 10.5 Hz, 1 H), 7.78 (d, J = 7.8 Hz, 1 H) Hi7i ((: l) C13) 3.42 (t, J = 6.6 Hz, 2 H), 4.58 736 (MH+) (d, J = 5.8 Hz, 2 H), 4.81 (t, J = 6.6 Hz, 2 H), 5.16 (s, 2 H), 6.93-6.96 (m, 6 H), 7.11-7.44 (m, 20 H), 7.75-7.78 (m, 1 H), 8.19-8.22 (m, 1 H), 9.06 (t, J = 5.9 Hz, 1 H) 57j o (1JMSU-db) 3.57 (t, J = 7. 0 Hz, Z H), 494 (MH+) tNXq 4. 57 (d, J=5. 9Hz, 2H), 4.94 (t, J = 7. 0 Hz, 2 H), 5.56 (s, 2 H), 7.18-7.41 (m, 10 H), 7.61 (d, J = 7.6 Hz, 1 H), 7.75 (d, J = 8.0 Hz, 1 H), 8.09-8.12 (m, 1 H), 9.07 (t, J = 5. 9 Hz, 1 H) 57k au ( ( : IJC ; 13) . 74 (t, J = 6.8 Hz, 2 H), 3.21 656 (MH+) (d, J=7. 4Hz, 2H), 4.07 (d, J = 6. 8 Hz, 2H), 4.79 (d, J=7. 4Hz, 2H), 5.28 (s, 2 H), 6.07-7.42 (m, 22 H), 7.79 (d,J= 8. 2 Hz, l H) 57 CH2OCH2 (3H2O (H3 (CDCI3) 3.30 (t, J = 6.9 Hz, 2 I1), T 691 (MH+) (s, 3 H), 3.45-3.48 (m, 2 H), 3.64-3.67 (m, 2H), 4.82 (t, J = 6.9 Hz, 2 H), 5.27 (s, 2 H), 5. 31 (s, 2 H), 6.94-6.97 (m, 6 H), 7.02-7.07 (m, 2 H), 7.14-7.23 (m, 4 H), 7.27-7.35 (m, 10 H), 7.78 (d, J = 7.8 Hz, 1 H) 7iiF CH2CH2CH2CEl2CN (CL) 30D) 3. 34 (t, J = 6. 9 Hz, 2 t1), 467 (ME1+) z z z 2 t = Z> > 4.80 (t, J = 6.9 Hz, 2 H), 5.03 (s, 2 H), 5.26 (s, 2 H), 6.73 (dd, J = 2.0,6.5 Hz, 2 H), 6.97-7.01 (m, 1 H), 7.04-7.05 (m, 3 H), 7.20-7.31 (m, 4 H), 7.47 (d, J = 7. 5 Hz, 1 H), 7.55 (d, J = 7. 1 Hz, 1 H)

Compound 58 (General Method) The trityl protected tetrazole (75 mg, 0.12 mmol) compound was suspended in MeOH (5 mL) and to this solution was added conc. HCl (0.25 mL). The reaction was stirred for 1-2 hours at room temperature. The solvent was evaporated and the residue was dried under vacuum. The residue was then triturated with diethyl ether or methylene chloride to give the HC1 salt.

The HCl salt was treated with exactly 2 eq IN NaOH in methanol (one to remove the HCl and one to make the sodium salt of the tetrazole). The solvent was evaporated and the sodium salt was triturated with ether.

Method 2: The trityl protected tetrazole compound was treated with exactly 1 eq IN NaOH in methanol. The reaction was heated at reflux and monitored by TLC and LC/MS for the completion of deprotection. The solvent was then evaporated and the residue was triturated with ether and/or methylene chloride to remove the trityl side product and filtration gave the final sodium salt product.

Table 10-The trityl group was removed as described above for compound 58. ata MS Data 38F CH2CH2CO2Me (CD30D) 6 2. 87 (t, J = 6. 9Hz, 2H), 3.65 (s, 447 (MH+) 3H), 3.76 (t, J = 6. 6Hz, 2H), 4.28 (t, J = 6. 9 Hz, 2H), 5.17 (t, J = 6.6Hz, 2H), 5.89 (s, 2H), 7.18-7.29 (m, 2H), 7.38 (d, J = 8. 7Hz, 2H), 7. 61-7.73 (m, 3H), 7. 97 (dd, J = 1.6,6.9 Hz, Hz T (DMSO-d6) 6 3. 27 (t under DMSO, 2 H), 477 (MH+) £ % 4. 66 (d, J = 5. 0 Hz, 2 H), 4.87 (t, J=6. 9Hz, 2 H), 5.45 (s, 2 H), 6.35-6.46 (m, 1 H), 6.60, 6.66 (s, 1 H), 7.03-7.08 (m, 2 H), 7.22-7.32 (m, 4 H), 7.40 (d, J = 7.0 Hz, 1 H), 7.55-7.60 (m, 1 H) (DMSO-d6) 8 1.69-1.87 (m, 4 H), 3.27 (t under DMSO, 2 H), 3.92-4.00 (m, 4 H), 4.89 (t, J = 6.9 Hz, 2 H), 5.51 (s, 2 H), 6.87-6.92 (m, 3 H), 7.01-7.12 (m, 2 H), 7.22-7.33 (m, 6 H), 7.59 (d, J = 7.4 Hz, 1 H), 7.66 (d, J = 8.2 Hz, I H) (DMSO-d6) 8 3.27 (t under DMSO, 2 H), 5O (E+) 3. 83 (s, 3 H), 4.86 (t, J = 6.9 Hz, 2 H), 5.49 (s, 2 H), 5.54 (s, 2 H), 7.02-7.05 (m, 2 H), 7.15- 7.30 (m, 5 H), 7.49-7.61 (m, 4 H), 7.69 (d, J = 8.0 Hz, 1 H) v (DMSO-d6) 8 3.27 (t under DMSO, 2 H), 496 (MH+) XNoz 4. 92 (t, J = 7.1 Hz, 2 H), 5.27 (s, 2 H), 5.60 (s, 2 H), 7.04-7.07 (m, 2 H), 7.23-7. 38 (m, 2 H), 7.60-7.71 (m, 3 H), 7.82 (d, J = 8.0 Hz, 1 H), 8.13-8.16 (m, 1 H), 8.26 (s, 1 H) N CHUCH (CD, OD) 83. 23 (s, 3 H), 3.37 (t, J = 6. 9 Hz, 2 4U5 (MH+) H), 4.80 (t, J = 6. 9 Hz, 2 H), 5.22 (s, 2 H), 5.33 (s, 2 H), 6.99-7.03 (m, 1 H), 7.09-7.20 (m, 2 H), 7.22-7.32 (m, 3 H), 7.50-7.55 (m, 2 H) (DMSO-d6) 8 0.08 (s, 9 H), 0.85 (t, J = 8.0 4M VlPl+) 5 g Hz, 2H), 3.14 (t, J=6. 6Hz, 2H), 3.56 (t, J= 8.1 Hz, 2 H), 4.67 (t, J = 6. 6 Hz, 2 H), 5.18 (s, 2 H), 5.27 (s, 2 H), 6.98-7.13 (m, 4 H), 7.16- 7.35 (m, 2H), 7.42 (d, J = 7.5 Hz, 1 H), 7.53 (d, J = 7.8 Hz, 1 H) 5Xh CE12CO2Me (DMSO-d6) 8 3.40 (t, J = 6.8 Hz, 2 H), 3.68 433 (MH+) (s, 3 H), 4.79 (s, 2 H), 4.81 (t, J = 6. 8 Hz, 2 H), 5.39 (s, 2 H), 7.04-7.07 (m, 2 H), 7.14- 7.24 (m, 4 H), 7.50 (d, J = 7.9 Hz, 1 H), 7.56 (d, J = 7.6 Hz, 1 H) 5Si CH2C°2 (DMSO-d6) 8 3. 41 (t, J=7. 2 Hz, 2 H), 4.65 (s, 419 (MH+) 2 H), 4.81 (t, J=7. 0Hz, 2H), 5. 38 (s, 2 H), 7.01-7.08 (m, 2 H), 7.14-7.24 (m, 4 H), 7.49 (d, J = 7. 5 Hz, 1 H), 7.56 (d, J = 7. 4 Hz, 1 H) (CD30D) 8 3. 34 (t, J = 6. 9 Hz, 2 H), 4.80 (t, J 467 (MH+) oui = 6.9 Hz, 2 H), 5.03 (s, 2 H), 5.26 (s, 2 H), 6.73 (dd, J = 2.0,6.5 Hz, 2 H), 6.97-7.01 (m, 1 H), 7.04-7.05 (m, 3 H), 7.20-7.31 (m, 4 H), 7.47 (d, J = 7.5 Hz, 1 H), 7.55 (d, J = 7.1 Hz, 1H) v (CDCI3) 8 3. 76 (t, J = 6. 6 Hz, 2 H), 3.90 (s, 3 SU9 (MH+) H), 5.18 (t, J = 6.6 Hz, 2 H), 5.27 (s, 2 H), 5. 93 (s, 2 H), 7.17-7.23 (m, 3 H), 7.38-7.40 (m, 1H), 7.54 (d, J= 8. 3 Hz, 2 H), 7.60-7.74 (m, 3 H), 7.96 (dd, J = 6.7,1.6 Hz, 1 H), 8.02 (dd, J = 6. 5,1.8 Hz, 2 H) 7F A Æ \ F, v : (DMSO-d6) 8 3. 45 (t, J = 7. 0 Hz, 2 H), 4.84-vln+ + (t, J=7. 0Hz, 2H), 5.17 (s, 2 H), 5.43 (s, 2 H), 6.98-7.05 (m, 2 H), 7.09-7.25 (m, 4H), 7.44 (d, J=8. 3Hz, 2H), 7.53 (t, J=6. 9Hz, 2 H), 7.89 (d, J = 8. 3 Hz, 2 H) Compounds 59 and 60 To a solution of compound 52 (2.5 g, 6.24 mmol) and BTPP (2.92 g, 9.36 mmol) in THF (20 mL) was added iodomethane (1.06 g, 1.2 mmol). The reaction mixture was stirred for 3 hours at room temperature. The solvent was evaporated and the residue was purified by flash column chromatography (gradient, EtOAc/hexanes, 2: 1 to EtOAc/MeOH, 10: 1) to give 2-methyl tetrazole product 59 (1.62 g, 63% yield) and 1-methyltetrazole product 60 (715 mg, 28% yield).

Compound 59 'H NMR (CDC13) 8 2.23 (s, 3H), 3.26 (t, J = 7.3 Hz, 2H), 4.16 (s, 3H), 4.88 (t, J = 7.3 Hz, 2H), 5.25 (s, 1H), 7.38 (d, J = 1.3 Hz, 1H), 5.46 (s, 2H), 7.07-7.10 (m, 3H), 7.29-7.35 (m, 3H), 7.53-7.54 (m, 1H), 7.80-7.83 (m, 1H) ; MS m/e 415 (MH+) ; Anal. Calcd for C22H22N8O : C, 63.75; H, 5.35; N, 27.02 Found: C, 63.46; H, 5.61; N, 26.74.

Compound 60 'H NMR (CDCl3) S 2.21 (s, 3 H), 3.22 (t, J = 6.8 Hz, 2 H), 3.42 (s, 3 H), 4.89 (t, J = 6.8 Hz, 2 H), 5.31 (s, 1 H), 5.39 (d, J = 1. 3 Hz, 1 H), 5.44 (s, 2 H), 7.06-7.13 (m, 3 H), 7.23-7.32 (m, 3 H), 7.55-7.61 (m, 1 H), 7.80 (d, J = 7. 2 Hz, 1 H); MS m/e 415 (MH).

Compound 61

Compound 61 was prepared according to the same procedure as described for compound 6.

'H NMR (DMSO-d6) 8 3.34 (t over water, J = 6.9 Hz, 2H), 4.24 (s, 3H), 4.79 (t, J = 6.9 Hz, 2H), 5.23 (s, 2H), 6.91-7.00 (m, 3H), 7.09-7.23 (m, 3H), 7.48 (d, J = 7.6 Hz, 1H), 7.52 (d, J = 7.5 Hz, 1H) ; MS m/e 375 (MH+).

Compound 62 Compound 61 (1.00 g, 2.67 mmol) was suspended in THF/DMF (30 mL/5 mL) and BTPP (1.67 g, 5.32 mmol) was added at room temperature. The solution was allowed to stir for 15-30 minutes at which time methyl 4- (bromomethyl)- benzoate (0.73 g, 3.20 mmol) was added. The reaction was stirred 16 hours at room temperature under nitrogen atmosphere. The solvent was removed and the resulting residue partitioned between water and EtOAc. The combined organic extracts were dried over magnesium sulfate, filtered and evaporated. The crude product was purified by flash chromatography on silica gel using a mixture of ethyl acetate in hexanes to give compound 62.

'H NMR (CDC13) 8 3.24 (t, J = 7.3Hz, 2H), 3.90 (s, 3H), 4.17 (s, 3H), 4.88 (t, J = 7.3Hz, 2H), 5.17 (s, 2H), 5.54 (s, 2 H), 6.83 (dd, J = 7.7,1.0 Hz, 1H), 6.99-7.10 (m, 2 H), 7.31-7.41 (m, 5H), 7.56 (d, J = 6.7 Hz, 1H), 7.82-7.85 (m, 1H), 7.99 (dd, J = 6.6, 1.8 Hz, 1H); MS m/e 523 (MH+).

Compound 63

Table 11-Prepared as described for compound 62. aa--aa # K2 iH NMK l) ata MS Data -6Ta (DMSO-d6) 8 3. 36 (t, J= 6. 8 Hz, 2 H), 4. 25 509 (MH+) (1 o (s, 3 H), 4.80 (t, J = 6.8 Hz, 2 H), 5.14 (s, 2 H H), 5.36 (s, 2 H), 6.98-7.03 (m, 2 H), 7.09- 7. 23 (m, 4 H), 7. 39 (d, J = 8. 2 Hz, 2 H), 7.48-7.55 (m, 2 H), 7.86 (d, J = 8.2 Hz, 2 H) T (CDCI3) 6 3. 25 (t, J = 7. 4 Hz, 2 H), 4.17 (s, 51U (MH+) 3 H), 4.90 (t, J = 7.4 Hz, 2 H), 5.21 (s, 2 H), 5. 57 (s, 2 H), 6.84 (d, J = 7. 5 Hz, 1 H), 7.05-7.14 (m, 2 H), 7. 34-7. 43 (m, 3 H), 7.50 (d, J = 8. 9 Hz, 2 H), 7.64 (bd, J = 7. 5 Hz, 1 H), 7.85-7.88 (m, 1 H), 8.19 (d, J = 8.9Hz, 2H) 7t. A S v (DMSO-d6) 8 3. 50 (t, J = 6. 7 Hz, 2 H), 424 480 (MH+) N H), 5. 61 (s, 2 H), 7. 04-7. 08 (m, 2 H), 7. 15- 7.19 (m, 1 H), 7.30-7.49 (m, 7 H), 7.69 (d, J = 7.1 Hz, 1 H), 7.83 (d, J = 7.7 Hz, 1 H) 63 (CD30D) 8 3. 37 (t, J = 6. 8 Hz, 2 H), 4.14 556 (MH+) (s, 3 H), 4.87 (t, J=6. 9Hz, 2H), 5.20 (s, 2 H), 5.44 (s, 2 H), 5.84 (s, 2 H), 7.06-7.09 (m, 3 H), 7.18-7.21 (m, 1 H), 7.24-7. 34 (m, 2 H), 7.46-7.53 (m, 5 H), 7.60 (dd, J = 1. 6, 7.0 Hz, 1 H), 8.12 (t, J = 6.8 Hz, 2 HO, 8.62 (t, J = 7.9 Hz, 1 H), 9.06 (d, J = 5.8 Hz, 2 H) 63g N (CD30D) 8. 68-3.74 (m, 4 H), 4.02 (bs, 4 488 (MH+) U H)'4. 25 (s, 3 H), 4.49 (t, J = 5.7 Hz, 2 H), 5.13 (t, J = 6.5 Hz, 2 H), 5.78 (s, 2 H), 7.19- 7. 31 (m, 3 H), 7.42 (d, J = 7.4 Hz, 1 H), 7.61-7.70 (m, 2 H), 7.78 (dd, J = 2.4,6.8 Hz, 1 H), 8.00 (d, J = 8.4 Hz, 1 H) (CD30D) 8 1.86-1.98 (m, 4 H), 2.89 (t, J = 511 (MH+) 7. 3 Hz, 2 H), 3.32 (t, J = 7.0 Hz, 2 H), 4.01 (t J =. z,,. s,,. xs (t, J = 7. 0 Hz, 2 H), 5. 41 (s, 2 H), 7. 02-7. 20 (m, = 7.0 Hz, 2 H), 5.41 (s, 2 H), 7.02-7.20 (m, 3 H), 7.25-7.33 (m, 3 H), 7.50 (dd, J = 2.0, 6. 7 Hz, 1 H), 7.63 (dd, J = 2.0,6.6 Hz, 1 H) v (CDCI3) ô 1. 27 (t, J = 7. 1 Hz, 3 H), 2.05- 4xy (MH+) 2. 14 (m, 2 H), 2.41 (t, 7. 3 Hz, 2 H), 3.18 (t, J=7. 6Hz, 2H), 3.98 (t, J=8. 7Hz, 2H), 4.12 (q, J = 7.1 Hz, 2 H), 4.81 (t, J = 7.3 Hz, 2 H), 5.42 (s, 2 H), 7.02-7.12 (m, 3 H), 7.23-7.34 (m, 3 H), 7.43-7.46 (m, 1 H), 7. 77-7.80 (m, 1 H) (DMSO-d6) 8 1.70-1.82 (m, 2 H), 1.89 (t, J OH = 7. 6 Hz, 2 H), 3.31 (t, J = 6. 9 Hz, 2 H), 3.83 (t, J = 7.3 Hz, 2 H), 4.25 (s, 3 H), 4.79 (t, J = 6.9 Hz, 2 H), 5.29 (s, 2 H), 6.97-7.07 (m, 2 H), 7.13-7.23 (m, 3 H), 7.33 (d, J = 7.2 Hz, 1 H), 7.52 (d, J = 7. 3 Hz, 1 H), 7.55 (d, J = 7. 4 Hz, 1 H) 63k (CDCI,) 8 2. 38 (t, J = 7. 1 Hz, 2 H), 3.20 (t, 4X (MH+) J = 7. 3 Hz, 2 H), 3.65 (s, 3 H), 3.93 (t, J = 6.9 Hz, 2 H), 4.18 (s, 3H), 4.83 (t, J = 7. 4 Hz, 2 H), 5.45 (s, 2 H), 6.98-7.01 (m, I H), 7.05-7.09 (m, 2 H), 7.29-7.35 (m, 3 H), 7. 48-7.50 (m, 1 H), 7.79-7.82 (m, 1 H) (DMSO-d6) 8 1.14 (t, J = 7.1 Hz, 3 H), 1. 52-1.71 (m, 2 H), 2.34 (t, J = 7.4 Hz, 2 H), 3.12 (t over water, 2 H), 3.87 (t, J = 6.8 Hz, 2 H), 4.01 (q, J = 7. 1 Hz, 2 H), 4.79 (t, J = 6.8 Hz, 2 H), 5.31 (s, 2 H), 6.99-7.09 (m, 2 H), 7.13-7.24 (m, 4 H), 7.49 (d, J = 7. 5 Hz, 1 H), 7.54 (d, J = 7.6 Hz, 1 H) (DMSO-d6) 8 1.35-1.48 (m, 2 H), 1.56-1.64 475 (MH+) (m, 2 H), 1.90 (t, J = 7. 3 Hz, 2 H), 3.31 (t, J = 6. 8 Hz, 2 H), 3.81 (t, J = 7. 1 Hz, 2 H), 4.24 (s, 3 H), 4.78 (t, J = 6. 8 Hz, 2 H), 5.29 (s, 2 H), 6.96-7.07 (m, 2 H), 7.11-7.22 (m, 4 H), 7.47 (d, J = 7. 3 Hz, I H), 7.53 (d, J = 7.5 Hz, 1 H) w (CDCI3) ô 1.24 (t, J = 7.1 Hz, 3 H), 1.37- 517 (MH+) 1. 53 (m, 2 H), 1.62-1.93 (m, 4 H), 2. 30 (t, J =7. 5Hz, 2H), 3.42 (t, J=6. 8Hz, 2H), 4.10 (q, J=7. 1Hz, 2H), 4.19 (s, 3H), 4.81 (t, J = 7.2 Hz, 2 H), 5.42 (s, 2 H), 6.97-7.12 (m, 3 H), 7.23-7. 33 (m, 3 H), 7.43-7.46 (m, 1 H), 7.76-7.82 (m, I H) v (DMSO-d6) ô 1. 20-1.30 (m, 2 H), 1.39-1.48 48Ö (MH+) (m, 2 H), 1.50-1.66 (m, 2 H), 1.82 (t, J = 7.2 Hz, 2 H), 3.31 (t, J = 6.8 Hz, 2 H), 4.25 (s, 3H), 4.79 (t, J = 7. 0 Hz, 2 H), 5. 30 (s, 2 H), 6.98-7.23 (m, 6 H), 7.48 (d, J = 7.4 Hz, 1 H), 7.55 (d, J-7. 4 Hz, 1 H) (CDC13) 6 2. 94 (t, J=7. 0Hz, 2H), 3. 16 (t, 42O (MH+) J = 6. 9 Hz, 2 H), 4.16 (s, 3 H), 4.26 (t, J = 7.0 Hz, 2 H), 4.77 (t, J = 6. 9 Hz, 2 H), 5.42 (s, 2 H), 7.06-7.17 (m, 3 H), 7.27-7.33 (m, 2 H), 7.35-7.39 (m, 1 H), 7.44-7.47 (m, 1 H), 7. 78-7. 83 (m, 1 H) (CD30D) 8 3.08 (s, 6 H), 3.68-3.72 (m, 4 446 (MH+) H), 4.23 (s, 2 H), 4.45 (t, J= 5.7 Hz, 2 H), 5.11 (t, J = 6. 5 Hz, 2 H), 5.74 (s, 2 H), 7.19- 7.32 (m, 3 H), 7.41 (d, J = 7.4 Hz, 1 H), 7.58-7.68 (m, 2 H), 7.74 (d, J = 7.4 Hz, 1 H), 7.97 (d, J = 7. 4 Hz, 1 H) r \ (CDCl) 8 1. 70-1. 80 (m, 2 H), 1.92-2.02 456 (MH+) (m, 2H), 2.46 (t, J=7. 0Hz, 2H), 3.20 (t, J = 7. 4 Hz, 2 H), 3.98 (t, J = 6. 7 Hz, 2 H), 4.18 (s, 3 H), 4.82 (t, J = 7.4 Hz, 2 H), 5.44 (s, 2 H), 6.98-7.07 (m, 1 H), 7.07-7.12 (m, 2 H), 7.28-7.37 (m, 3 H), 7.48-7.51 (m, 1 H), 7.78-7.84 (m, 1 H) 6 s (CDC13) 8 2. 10-2. 24 (m, 2 H), 2.49 (t, J= 442 (MB+) 7.1 Hz, 2 H), 3.22 (t, J = 7. 4 Hz, 2 H), 4.07 (t, J=6. 6Hz, 2H), 4.16 (s, 3H), 4.87 (t, J = 7.4 Hz, 2 H), 5.51 (s, 2 H), 7.04-7.07 (m, 1 H), 7.11-7.15 (m, 2 H), 7.34-7.43 (m, 3 H), 7.56-7.64 (m, 1 H), 7.87-7.87 (m, 1 H) 6 t (DMSO-d6) 8 1.82-1.93 (m, 2 H), 2.09 (t, J 475 (MH+) OH = 7.4 Hz, 2 H), 3.29-3.33 (m, 2 H), 3.85 (t, J = 6. 9 Hz, 2 H), 4.24 (s, 3 H), 4.78 (t, J = 6.9 Hz, 2 H), 5.29 (s, 2 H), 6.16 (bs, 2 H), 6.99-7.08 (m, 2 H), 7.12-7.24 (m, 4 H), 7.48 (d, J = 7. 5 Hz, 1 H), 7.53 (d, J = 7. 4 Hz, 1 H), 9.09 (bs, I H) "\- (CDClJ83. 21 (t, J = 7. 4 Hz, 2 H), 4.14 (s, 465 (MH+) 3 H), 4.84 (t, J = 7. 4 Hz, 2 H), 5.12 (s, 2 H), 5.47 (s, 2 H), 6.87-6.92 (m, 1 H), 6.97-7.04 (m, 2 H), 7.24-7.35 (m, 8 H), 7.44-7.47 (m, 1 H), 7.77-7.83 (m, 1 H) 63v (DMSO-d6) 8 3.36 (t, J = 6.7 Hz, 2 H), 3.66 553 (MH+) (s, 3 H), 4.25 (s, 3H), 4.74 (s, 3H), 4.80 (t, J °'° = 6.9 Hz, 2 H), 5.00 (s, 2 H), 5.33 (s, 2 H), ° 6.87 (d, J = 8.7 Hz, 2 H), 6.98-7.01 (m, 2 H), 7.13-7.23 (m, 4 H), 7.30 (d, J = 8.7 Hz, 2 H), 7.51 (dd, J = 7. 7,12.9 Hz, 2 H) 63wa (DMSO-d6) 8 3.34 (t, J= 6.9 Hz, 2 H), 4.01 539 (MH+) oli (s, 2 H), 4.27 (s, 3 H), 4.81 (t, J = 6.9 Hz, 2 H), 4.98 (s, 2 H), 5.34 (s, 2 H), 6.73 (d, J = 8. 6 Hz, 2 H), 6.98-7.01 (m, 2 H), 7.13-7.25 (m, 6 H), 7.50 (d, J = 7.5 Hz, 1 H), 7.55 (d, J=7. 3Hz, lH) a, saponification ot ester as described tor compound S ; b, catalytic hydrogenation as described for compound 123; c, alkylation with 1, 4-di (bromomethyl) benzene followed by addition of pyridine to form a pyridinium salt as described for 37g; d, prepared as described for compound 119.

Compound 64 The general coupling method used for compound 63a was applied using 4- benzyloxybenzyl chloride and BTPP in tetrahydrofuran to give the product benzyl ether. The benzyl ether (600 mg, 1.05 mmol) and 10% palladium hydroxide on carbon (160 mg) in 2: 1 methanol/tetrahydrofuran (50 mL/25 mL) was agitated under hydrogen at 55 psi for 48 hours. The reaction mixture was filtered through a pad of Celite and then subjected to column chromatography (2: 1 EtOAc/CH2Cl2) to give compound 64 as a white solid (262 mg, 52% yield).

'H NMR (DMSO-d6) 8 3.35 (t, J = 6.8 Hz, 2H), 4.25 (s, 3H), 4.80 (t, J = 6.8 Hz, 2H), 4.94 (s, 2H), 5.33 (s, 2H), 6.68 (d, J = 8.5 Hz, 2H), 6.95-7.02 (m, 2H), 7.09-7.23 (m, 6H), 7.47-7.54 (m, 2H), 9.39 (s, 1H); IR (KBr, cm'') 3247,2944,1664,1613,1597,1515,1491,1445,1413,747; MS m/e 481 (MH+) ; Anal. Calcd for C26H24N8O2: C, 64.99; H, 5.03; N, 23.32 Found: C, 64.79; H, 4.98; N, 23.38.

Compound 65 A mixture of compound 63c, (100 mg, 0.18 mmol) and triethylamine (55 mg, 0.54 mmol) in methylene chloride (5 mL) was cooled to 0 °C. Methanesulfonyl chloride (21 mg, 0.18 mmol) was added and the reaction mixture was allowed to

warm gradually to room temperature. After stirring for 5.5 hours under nitrogen atmosphere, the organic material was washed with dilute aqueous sodium bicarbonate solution (10 mL). The aqueous layer was then extracted with methylene chloride (2 x 20 mL). The combined organic extracts were dried over magnesium sulfate, filtered and evaporated. Trituration with anhydrous diethyl ether followed by filtration gave compound 65 as a yellow solid (92 mg, 91% yield): 'H NMR (CD30D) 8 2.95 (s, 3H), 3.07 (s, 1H), 3.68 (t, J= 6.5 Hz, 2H), 4.26 (s, 3 H), 5.14 (t, J= 6.7 Hz, 2H), 5.15 (s, 2H), 5.81 (s, 2H), 7.16-7.28 (m, 6H), 7.43 (d, J = 8.6 Hz, 2 H), 7.63-7.75 (m, 3H), 7.99-8.02 (m, 1H) ; IR (KBr, cm'') : 3435,2929,1708,1615,1513,1493,1404,1329,1152,752.

MS m/e 558 (MH+).

Compound 66 A mixture of compound 63c (100 mg, 0.18 mmol) and triethylamine (55 mg, 0.54 mmol) in methylene chloride (4 mL) was cooled to 0 °C. Acetyl chloride (18 mg, 0.23 mmol) was added followed by DMAP (5 mg, catalytic quantity). The reaction mixture was allowed to warm to room temperature gradually and stirring was continued for 16 hours at room temperature under nitrogen atmosphere. A white precipitate was observed. The organic material was washed with dilute aqueous sodium bicarbonate solution (10 mL). The aqueous layer was then extracted with methylene chloride (2 x 20 mL). The combined organic extracts were dried over magnesium sulfate, filtered and evaporated to give a white solid. The solid was triturated with anhydrous diethyl ether and filtered to give the compound 66 as a white solid (50 mg, 53 % yield).

'H NMR (DMSO-d6) 8 2.00 (s, 3 H), 3.36 (t, J= 6.9 Hz, 2 H), 4.25 (s, 3 H), 4.80 (t, J= 6.9 Hz, 2 H), 5.14 (s, 2 H), 5.34 (s, 2 H), 6.97-7.02 (m, 2 H), 7.07-7.23 (m, 6 H), 7.28 (d, J= 8.5 Hz, 2 H), 7.48-7.54 (m, 4 H), 9.92 (s, 1H).

IR (KBr, cm~') : 3308,2929,1694,1610,1516,1495,1407,1311,749.

MS m/e 522 (MH+).

Anal. Calcd for C2sH27N9o2 : C, 64.48; H, 5.22; N, 24.17 Found: C, 64.13; H, 5.32; N, 23.86 Compound 67 To a solution of compound 63q (32 mg, 0.07 mmol) in acetone (1 mL) was added iodomethane (20 mg, 0.14 mmol). The reaction mixture was stirred at 50 °C for 2 hours and then stirred at room temperature overnight. The resulting precipitate was filtered and triturated with CH2Cl2 and ET@O to give 18 mg (55% yield) of compound 67.

'H NMR (DMSO-d6) 8 3.19 (s, 9H), 3.51 (t, J = 7.0 Hz, 2H), 3.74 (t, J = 6.7 Hz, 2H), 4.39 (t, J = 6.7 Hz, 2H), 4.91 (t, J = 7.0 Hz, 2 H), 5.57 (bs, 2H), 7.08-7.19 (m, 2H), 7.27-7.28 (m, 3H), 7.41 (d, J = 7. 2 Hz, 1H), 7.57 (d, J=7. 7Hz, 1 H), 7.73 (d, J = 7. 7 Hz, 1H) ; MS (m/e) 446 (MH+).

Compound 68

To a solution of 2-hydroxymethylbenzimidazole (29.63 g, 200 mmol) in a mixture of DMF/THF (150 mL, 1 : 1) was added sodium hydride (60% in mineral oil, 8.4 g, 210 mmol) in several portions at room temperature. After stirring for 1 hour, 4-bromobutyronitrile (29.6 g, 200 mmol) was added and the resulting solution was stirred at 80 °C for 16 hours. The solvent was evaporated and the residue diluted with water and extracted with EtOAc. The combined extracts were dried over MgS04 and evaporated. The residue was purified by flash chromatography (gradient, EtOAc/hexane, 1: 1 to 2 : 1, then EtOAc/MeOH, 10: 1) to give 22. 11 g (51% yield) 4- (2-hydroxymethyl-benzoimidazol-1-yl)-butyronitrile, 68 as a white solid.

'H NMR (CD3) 8 2.27-2.32 (m, 2H), 2.41 (t, J = 6.0 Hz, 2H), 4.41 (t, J = 7.2 Hz, 2H), 7.26-7.38 (m, 3H), 7.67-7.70 (m, 1H) ; MS m/e 216 (MH).

Compound 69 To 4-(2-hydroxymethyl-benzoimidazol-1-yl)-butyronitrile, 68, (22 g, 102.2 mmol) suspended in CH2C12 (100 mL), thionyl chloride (15.81 g, 132.9 mmol) was slowly added with ice-water bath cooling. The ice bath was removed. The solution was stirred at room temperature for 1 hour and then evaporated. The residue was triturated with EtOAc to give a nearly quantitative yield of 4- (2-chloromethyl- benzoimidazol-1-yl)-butyronitrile, 69, as light gray powder.

'H NMR (CD3) 8 2.32-2.38 (m, 2 H), 2.70 (t, J = 7.3 Hz, 2 H), 4.69 (t, J = 7.6 Hz, 2 H), 5.33 (s, 2 H), 7.69-7.74 (m, 2 H), 7.85-7.87 (m, 1 H), 8.00-8.02 (m, 1 H) ; MS m/e 234 (MH+).

Anal. Calcd for Cl2H, 2N3*HC1*0. 25 H2O : C, 52.48; H, 4.95 ; N, 15.30 Found: C, 52.52; H, 4.88 ; N, 15.26

Compound 70 Compound 70 was prepared as described for 4. lH NMR (CDC13) å 1. 93-2. 06 (m, 2H), 2.29 (s, 3H), 7.65 (t, J = 7.6 Hz, 2H), 4.50 (t, J = 7.7 Hz, 2H), 5.22 (s, 1H), 5.40 (s, 2H), 5.42 (s, 1H), 7.10-7.17 (m, 3H), 7.30-7. 38 (m, 3H), 7.53-7.57 (m, 1H), 7.79-7.83 (m, 1H) ; MS m/e 372 (MH+).

Compound 71 Compound 71 prepared as described for compound 52, 'H NMR (CD30D) 8 2.12-2.20 (m, 2H), 2.23 (s, 3H), 2.94 (t, J = 7.4 Hz, 2 H), 4.46 (t, J = 7.8 Hz, 2H), 4.92 (s, 2H), 5.23 (s, 1H), 5.45 (s, 2H), 7.05-7.33 (m, 6H), 7.45 (dd, J = 1.3,6.8 Hz, 1H), 7.61 (dd, J = 1.7,6.9 Hz, 1H); MS m/e 415 (MH+).

Compound 72

Table 12-Prepared by treatment of compound 71 as described for compound 6 followed by alkylation as described for compound 7 using Cs2CO3 instead of BTPP. 1I aa'ata a o. s,,. s,, + 3. 13 (t, J=6. 7Hz, 2H), 4. 76 (t, J=6. 7 Hz, 2 H), 5.16 (s, 2H), 5.50 (s, 2H), 7. 02-7.04 (m, 2 H), 7.16-7.21 (m, 2 H), 7.25-7.30 (m, 2 H), 7.37-7.42 (m, 4 H), 7.58 (d, J=7. 9Hz, 1 H), 7.70 (d, J == 8. 1 Hz,I H) 72b o (C : 1 (lj) 2.74 (t, J = 6. 7 Hz, 2 H), 3.92 466 (MFf+-) 2 H) 5 (s, 3 H), 4. 82 (t, J = 6. 7 Hz, 2 H), 5. 17 Hz, I H), 7.03-7.12 (m, 1 H), 7.33-7.43 (m, 6 H), 7.60 (d, J=7. 2Hz, 1H), 7.83- 7.86 (m, 1 H), 8.02 (d, J = 8. 3 Hz, 2 H) 72c (DMSO-d6) 8 1.59-1.62 (m, 2 H), 1.76-413 (MH+} 1. 79 (m, 2 H), 1.99-2.02 (m, 2 H), 2.54- 2.63 (m, 4 H), 3.93 (t, J= 4.1,2 H), 4. 41 (t, J= 4.5,2 H), 5.41 (s, 2 H), 6.99-7.19 (m, 4 H), 7.24-7.28 (m, 2 H), 7.56-7.60 (m,2H); Compound 73

Compound 3 (2.00 g, 6.57 mmol) was suspended in acetonitrile (100 mL) and methyl vinyl sulfone (2.09 g, 19.72 mmol) was added followed by MTBD (50 mg, 0.33 mmol). The reaction mixture was heated at 50-60 °C for 16 hours. The solution became transparent. The solvent was evaporated and the residue was purified by flash column chromatography on silica gel (10: 1 ethyl acetate/hexanes) to give 2.50g (93% yield) of compound 73 as a yellow-orange solid:

'H NMR (CDCl3) 8 2.25 (s, 3 H), 3.07 (s, 3H), 3.39 (t, J = 7.6 Hz, 2H), 4.96 (t, J = 7.3 Hz, 2 H), 5.25 (s, 1 H), 5.42 (s, 1 H), 5.50 (s, 2H), 7.12-7.28 (m, 3H), 7.36-7.47 (m, 3H), 7.63 (d, J = 4. 6 Hz, 1H), 7.83-7.86 (m, 1H); IR (KBr, cm-') 1698,1489,1397,1306,1137,745; MS m/e 411 (MH+).

Compound 74

Compound 73 (2.2 g, 5.36 mmol) was suspended in MeOH (100 ml) and concentrated hydrochloric acid (10 mL). The mixture was heated at reflux for 3.5 hours and then stirred overnight at room temperature. The solvent was stripped, repeatedly evaporated with hexanes and/or diethyl ether, and dried under vacuum to give 2.2 g (quantitative yield) compound 74 as a hydrochloride salt: 'H NMR (DMSO-d6) 8 3.17 (s, 3H), 4.02 (t, J = 6.1 Hz, 2H), 5.24 (t, J = 6.1 Hz, 2H), 5.93 (s, 2H), 7.09-7.20 (m, 2H), 7.29 (bd, J = 8.0Hz, 1H), 7.65-7.73 (m, 2H), 8.06 (bd, J= 8. 0 Hz, 1H) ; IR (KBr, cm-') 1687,1461,1399,1305,1127,751; MS m/e 317 (MH).

Compound 75

Compound 75 prepared as described for compound 7.

'H NMR (CDCl3) 8 1.72-1.78 (m, 2H), 1.92-1.98 (m, 2H), 2.14-2.20 (m, 2H), 2.46 (t, J = 7. 1 Hz, 2H), 2.85 (s, 3H), 3.07 (t, J = 7. 6 Hz, 2H), 3.98 (t, J = 6. 9 Hz, 2H), 4.54

(t, J = 7.7 Hz, 2H), 5.42 (s, 2H), 6.98-7.00 (m, 1H), 7.08-7.12 (m, 2H), 7.31-7.34 (m, 2H), 7.39-7.41 (m, 1H), 7.53-7. 55 (m, 1H), 7.81 (dd, J = 3.1,5.9 Hz, 1H) ; MS (m/e) 466 (MH+).

Compound 76

Compound 76 prepared as described for compound 121.

'H NMR (CD30D) 8 1.73-1.78 (m, 2H), 1.86-1.90 (m, 2 H), 2.15-2.19 (m, 2H), 2.61 (t, J = 7. 5 Hz, 2H), 2.94 (s, 3H), 3.20 (t, J = 7. 6 Hz, 2H), 4.03 (t, J = 6. 9 Hz, 2H), 4.55 (t, J = 7. 7 Hz, 2H), 5.47 (s, 2 H), 7.07 (t, J = 7. 7 Hz, 1H), 7.14 (t, J = 7. 2 Hz, 1 H), 7.21-7.34 (m, 4H), 7.59 (d, J=8. 0Hz, 1H), 7.63 (d, J=8. 0Hz, 1H) ; MS (m/e) 525 (MH+).

Compound 77

Compound 74 (2.20 g, 5.36 mmol) was suspended in anhydrous THF (70 mL). Upon addition of BTPP (6.70 g, 21.44 mmol), the reaction mixture became a clear solution. After stirring for 20 minutes, methyl 4- (bromomethyl) benzoate (1.47 g, 6.43 mmol) was added and the mixture was allowed to stir at room temperature under a nitrogen atmosphere for 16 hours. The solvent was evaporated. The brown residue was taken up in water (75 mL) and extracted with methylene chloride (3 x 300 mL). The organic extracts were dried over anhydrous MgSO4, and evaporated.

The product was purified by flash column chromatography (gradient with EtOAc/ hexanes 2: 1 to 5: 1 as eluantto give 1.2 g (43% yield) of compound 77:

'H NMR (CDCl3) 8 2.99 (s, 3H), 3.43 (t, J = 7. 3 Hz, 2H), 3.94 (s, 3H), 4.95 (t, J = 7. 3 Hz, 2H), 5.17 (s, 2H), 5.55 (s, 2H), 6.86 (d, J = 7.7 Hz, lH), 7.03-7.15 (m, 2H), 7.36- 7.7.47 (m, 4 H), 7.55 (d, J = 4.8 Hz, 1H), 7.65-7.86 (m, 1H), 8.02 (d, J = 8.1 Hz, 2H); IR (KBr, cm-l) 1707,1493,1438,1408,1282,1135,750; MS m/e 519 (MH>).

Compound 78 Ester 77 (1.2 g, 2.31 mmol) was suspended in a solution of methanol (75 mL) and 1 N NaOH (4.6 mL, 4.63 mmol). The reaction mixture was heated at reflux for 3 hours. The methanol was evaporated and the residue was taken up in water (75 mL).

The aqueous solution was acidified to pH 6 with 1 N HC1. An unfilterable gelatinous precipitate came out of solution. A large amount of sodium chloride was added to the aqueous material to create a saturated solution which was then extracted with THF (400 mL x 3). The organic extracts were dried over anhydrous magnesium sulfate, filtered, and evaporated to give 894 mg (81% yield) of compound 78 as a free acid.

The acid (500 mg, 0.99 mmol) was suspended in a mixture of methanol and THF (50%, 70 mL), and 1 N NaOH (0.99 mL, 0.99 mmol) was added. The solvent was evaporated and the solid was dried under vacuum. The solid was triturated with diethyl ether to give 464 mg (89% yield) of compound 78 as a sodium salt.

'H NMR (DMSO-d6) 8 3.10 (s, 3H), 3.78 (t, J = 6.5 Hz, 2H), 4.86 (t, J = 6.5 Hz, 2H), 5.09 (s, 2H), 5.52 (s, 2H), 6.97-7.29 (m, 8H), 7.57 (d, J = 7.6 Hz, 1H), 7.60 (d, J = 7.7 Hz, 1H), 7.79 (d, J = 8.1 Hz, 2H); IR (KBr, cm-') 3398,2926,1698,1597,1554,1493,1392,1293,1132,750 ; MS m/e 505 (MH+).

Compound 79

Acid 78 (400 mg, 0.79 mmol), dimethylamine hydrochloric acid salt (97 mg, 1.19 mmol), and N, N-diisopropylethylamine (307 mg, 2.38 mmol) were stirred in DMF (10 mL). To this solution was added PyBroP (433 mg, 0.95 mmol). The reaction was allowed to stir under nitrogen atmosphere at room temperature for 48 hours. The solvent was evaporated. The residue was taken up in water (20 mL) and extracted with ethyl acetate (3 x 150 mL). The organic extracts were dried over anhydrous MgSO4, and evaporated. Column chromatography (methylene chloride /methanol = 20 : 1) followed by preparative high pressure liquid chromatography (reverse phase) gave 110 mg (26% yield) of compound 79: 'H NMR (CD30D) 8 2.96,3.05,3.08 (s, 3H each), 3.83 (t, J =3.8 Hz, 2H), 5.07 (t, J = 3.8 Hz, 2H), 5.21 (s, 2H), 5.77 (s, 2H), 7.08 (bs, 3H), 7.28-7.30 (m, 1 H), 7.41 (d, J = 4.9 Hz, 2H), 7.44-7.53 (m, 4H), 7.65 (d, J = 4.9 Hz, 1H), 7.79 (d, J = 4. 9 Hz, 1H); IR (KBr, cm-') 3441,1702,1621,1493,1406,1133,750; MS m/e 532 (mol) ; Anal. Calcd for C28H29N504S 2H2O : C, 59.24; H, 5.86; N, 12. 34 Found: C, 59.00; H, 5.15; N, 12.17.

Compound 80

Compound 80 was prepared as described for 50 except ethyl vinylphosphinate was used in place of acrylonitrile.

'HNMR (DMSO-d6) 8 1.10 (t, J= 7.1,6H), 2.11 (s, 3H), 2.29-2.40 (m, 2H), 3.85- 3.95 (m, 4H), 4.54-4.64 (m, 2H), 5.20 (s, 1H), 5.40 (s, 1H), 5.45 (s, 2H), 7.02-7.09 (m, 2 H), 7.14-7.32 (m, 4H), 7.50-7.57 (m, 2H); MS (m/e) 469 (MH+).

Compound 81

The isopropenyl group of compound 80 was reduced to give compound 81 as described for compound 54.

'H NMR (DMSO-d6) 6 1. 10 (t, J= 7.0,6H), 1.46 (d, J = 7.0,6H), 2.24-2.35 (m, 2H), 3.85-3.95 (m, 4H), 4.53-4.70 (m, 3H), 5.41 (s, 2H), 6.96-7.06 (m, 2H), 7.14-7.34 (m, 4H), 7.48-7.57 (m, 2H) ; MS (m/e) 471 (MH+).

Compound 82

Compound 82 was prepared as described for compound 7 using [1, 2] oxathiolane 2,2- dioxide as the alkylating agent.

H NMR (DMSO-d6) 8 1.10 (t, J= 7. 0,6H), 1.90-2.0 (m, 2H), 2.28-2.47 (m, 4H), 3.85-3.98 (m, 6H), 4.52-5.62 (m, 2H), 5.44 (s, 2 H), 6.96-7.08 (m, 2H), 7.12-7.29 (m, 4H), 7.48-7.57 (m, 2H); MS (m/e) 551 (MH+).

Compound 83

Compound 83 was prepared as described for compound 7.

'H NMR (DMSO-d6) 81. 09 (t, J= 7.1,6H), 2.32-2.43 (m, 2H), 3.82 (s, 3H), 3.84- 3.94 (m, 4H), 4.55-4.64 (m, 2H), 5.20 (s, 2H), 5.51 (s, 2H), 6.97-7.04 (m, 2H), 7.09- 7.31 (m, 4H), 7.46-7.56 (m, 4H), 7.93 (d, J= 8.3,2H); MS (m/e) 577 (MH+).

Compound 84

Compound 84 was prepared as described for compound 4.

'H NMR (DMSO-d6) 8 1.09 (t, J= 7.1,6H), 7.38-2.44 (m, 2H), 3.86-3.95 (m, 4H), 4.61-4.69 (m, 2H), 5.20 (s, 2H), 5.62 (s, 2H), 7.01-7.04 (m, 2H), 7.25-7.37 (m, 2H), 7.46 (d, J= 8.2,2H), 7.59-7.66 (m, 2H), 7.90 (s, 2H); MS (m/e) 563 (MH+).

Compound 85

Compound 85 was prepared as described for 50 using methyl vinyl ketone.

'H NMR (CDCl3) 8 2.09 (s, 3H), 2.45 (s, 3H), 2.84 (t, J = 6.8 Hz, 2H), 4.64 (t, J = 6.8 Hz, 2H), 5.21 (s, 1H), 5.38 (d, J = 1.3 Hz, 1H), 5.51 (s, 2H), 7.06-7.10 (m, 3H), 7.28- 7.31 (m, 2H), 7.34-7.38 (m, 1H), 7.49-7.52 (m, 1H), 7.77-7.80 (m, 1H) ; MS m/e 375 (MH+).

Compound 86

Compound 86 was prepared as described for compound 6.

'H NMR (CDCl3) 2.09 (s, 3H), 2. 82 (t, J = 6.8 Hz, 2H), 3.50 (s, 1H), 4.63 (t, J = 6.9 Hz, 2H), 5.51 (s, 2H), 7.04-7.07 (m, 3H), 7.29-7.37 (m, 2H), 7.44-7.45 (m, 1H), 7.78- 7.81 (m, 1H), 8.64 (s, 1H) ; MS m/e 335 (MH+).

Compound 87

Compound 87 was prepared as described for compound 7 using 2-bromo-propionic acid ethyl ester.

'H NMR (CDC13) 8 1.09 (t, J = 7.1 Hz, 3H), 1.57 (d, J = 7.4 Hz, 3H), 2.08 (s, 3H), 2.77 (t, J = 6. 9 Hz, 2H), 4.21 (q, J = 7. 1 Hz, 2H), 4.60 (t, J = 6. 9 Hz, 2H), 5.27 (q, J = 7.4 Hz, 1H), 5.51 (q, J = 12.4 Hz, 2H), 6.93-6. 96 (m, 1H), 7.09-7.09 (m, 2H), 7.28- 7.32 (m, 2H), 7.34-7.38 (m, 1 H), 7.48-7.51 (m, 1H), 7.77-7.81 (m, 1H) ; MS m/e 435 (MH+).

Compound 88 To compound 3 (1.62 g, 5.32 mmol) in anhydrous DMF (20 mL) was added NaH (60% in mineral oil, 510 mg, 12.77 mmol), followed by 2-chloroethyl dimethylamine hydrochloride (843 mg, 5.85 mmol). The mixture was stirred at 65°C overnight. The solution was poured into saturated sodium bicarbonate and extracted with EtOAc. The combined extracts were dried over MgSO4, and evaporated The residue was purified by chromatography (EtOAc : MeOH, 10: 1) to give 1.72g (86% yield) of compound 88 as a solid: 'H NMR (CDC13) 8 2.23 (s, 3H), 2.25 (s, 6H), 2.48 (t, J = 6.7 Hz, 2H), 4.45 (t, J = 6.7 Hz, 2H), 5.21 (s, 1H), 5.37 (s, 1H), 5.39 (s, 2H), 7.03-7.09 (m, 3H), 7.24-7.34 (m, 3H), 7.49-7.52 (m, 1H), 7.75-7.79 (m, 1H) ; IR (KBr, cm-l) 2941,2830,2774,1693,1396,1157,747,732; MS m/e 376 (MH+) ; Anal. Calcd for C22H25N5O : C, 70.38; H, 6.71; N, 18.65 Found: C, 70.29; H, 6.78; N, 18.76.

Compound 89 Compound 89 was prepared as described for compound 6.

'H NMR (CD3) 8 2.29 (s, 6H), 2.50 (t, J = 7.2Hz, 2H), 4.45 (t, J = 7.2Hz, 2H), 5.40 (s, 2H), 7.00-7.05 (m, 3H), 7.27-7.30 (m, 2H), 7.35-7.37 (m, 1H), 7.42-7.44 (m, 1H), 7.77-7.80 (m, 1H), 8.41 (bs, IH) ; MS m/e 336 (MH+).

Compound 90 The isopropenyl group of compound 88 was reduced to the isopropyl group as described for compound 115.

'H NMR (CDC13) 8 1.54 (d, J = 7.0 Hz, 6H), 2.27 (s, 6H), 2.47 (t, J = 6.8Hz, 2H), 4.44 (t, J = 6.8Hz, 2H), 4.72-4.82 (m, 1H), 5.39 (s, 2H), 6.98-7.06 (m, 2H), 7.07-7.13 (m, 1H), 7.24-7.33 (m, 3H), 7.48-7.52 (m, 1H), 7.75-7.79 (m, 1H); MS m/e 413 (MH+).

4-Bromomethyl-N, N-dimethyl-benzamide 4-bromomethylbenzoic acid (25 g, 116.25 mmol) was dissolved in CH2C12 (200 ml) and treated with oxalyl chloride (12.2 ml, 139. 5 mmol). DMF (0.45 ml) was added slowly then stirred for 1 h. The solvent was removed to give the 4- bromomethylbenzoyl chloride as a white solid.

A mixture of 4-bromomethyl-benzoyl chloride (7.0 g, 30.24 mmol), polyvinyl pyridine (9.6 g, 90.7 mmol) and dimethyl amine (15.9 ml, 31.8 mmol, 2.0 M in THF) was stirred at 23°C for 15 h. The solution was filtered and the solvent removed to give 7.3 g (99% yield) of 4-bromomethyl-N, N-dimethyl-benzamide as a yellow solid.

IH NMR (CDC'3) 8 2.98 (s, 3H), 3.10 (s, 3H), 4.49 (s, 2H), 7.37-7.43 (m, 4H).

MS m/e 242 (MH+).

Table 13-Compounds in the table below were prepared by alkylation of compound 89 as described for compound 7. # I R2--'H-NNM Data-MS Data 91a (CD, 01,)) 2. 36 (s,,. s,, 534 (+) 3. 10 (s, 6H), 3.87 (t, J = 7.9Hz, 2H), % N-t 5. 19 (t, J = 7. 9Hz, 2H), 5.19 s, 2H), 5. 46 (s, 2H), 5.90 (s, 2H), 6.37 (s, 1H), 7.16-7.23 (m, SH), 7.45 (d, J= 8.2Hz, 3H), 7.68-7.79 (m, 3H), 8.12 (d, J = 8. SHz, 1H) 91 b N o- (CD30D) b 3.12 (s, 6 H), 3.85 (t, J = 564 (MH+) +/N-o 7. 4 Hz, 2 H), 3.91 (s, 3 H), 5.17-5.24 (m, 2 H), 5.21 (s, 2 H), 5.78 (s, 2 H), 5.90 (s, 2 H), 7.06-7.25 (m, 3 H), 7.38 (d, J=7. 9Hz, 2H), 7.46 (d, J = 8. 3 Hz, 3 H), 7.65-7.79 (m, 3 H), 8.10 (d, J = 8.3 Hz, 1 H), 8. 31 (s, 1 H), 9.23 (s, 1 H) 91C H (DMSO-d6) 8 2. 21 (s, 6 H), 2.56 (t, J 550 (MB+) WN no = 6. 5Hz, 2H), 4.39 (t, J=6. 4Hz, 2 H), 5.08 (s, 2 H), 5.43 (s, 2 H), 5.51 (s, 2 H), 6.98-6.99 (m, 2 H), 7.10 (d, J = 8.1 Hz, 2 H), 7.14-7.25 (m, 4 H), 7. 31 (d, J = 8.2 Hz, 2 H), 7.54-7.56 (m, 4 H), 8.00 (bs, 1 H) v x, On oqv (CDCI3) 2.30 (s, 6H), 2.52-2.63 (m, 594 (MH+) 2H), 3. 38 (s, 3H), 4.47-4.59 (m, 2H), o 5. 08 (s, 2H), 5. 10 (s, 4H), 5. 45 (s, 2H), 5.81 (d, J = 7.9Hz, 1H), 6.87- 6.90 (m, 1H), 7.00-7.04 (m, 2H), 7.23-7.30 (m, 5H), 7.42 (d, J = 8.0 Hz, 3H), 7.49-7.52 (m, 1H), 7.78-7.81 (m, 1H) 91e 0 0 (CD30D) 3. 03 (s, 6H), 3. 73 (s, 3H), 622 (MH+) ° 2H), 5. 76 (d, J = 7. 5Hz, 1H), 5. 87 (s, v > o (s, 2H), 5. 12 (s, 2H), 5. 12-5. 20 (m, o 2H), 5. 76 (d, J = 7. 5Hz, 1H), 5. 87 (s, 2H), 7.17-7.20 (m, 3H), 7.28-7.33 (m, 4H), 7.44-7.46 (m, 1H), 7.54 (d, J = 7.8Hz, 1H), 7.63-7.78 (m, 3H), 8.11 (d, J= 8. 1Hz, 1H) TH" o-o,--- (DMSO-d6) 1. 33 (s, 9H), 2. 88 (s, 3H), 664 (MH+) 4 (s, 2H), 4. 94 (s, 2H), 4. 96-5. 01 (m, 2H), 5.09 (s, 2H), 5.68 (s, 2H), 5.78 (d, J = 7.9Hz, 1H), 7.04-7.07 (m, 2H), 7.16-7.19 (m, 1H), 7.21 (d, J = 8.2Hz, 2H), 7.32 (d, J = 8.2Hz, 2H), 7.39- 7.47 (m, 3H), 7.69 (t, J = 8.3Hz, 2H), 7.99 (d, J= 8. 0 Hz, IH) 91g 0 co me- (CDrF3T2--76 (s, 6H), 2. 52 (t, J = 751 (MH+) 6. 9dz, 2H), 2.82 (dd, J = 4.5,17.4Hz, COZMe 1 H), 3.00 (dd, J = 4. 5, 17. lHz, 1H), ° 3.65 (s, 3H), 3.70 (s, 3H), 4.37 (d, J = 5.1Hz, 2H), 4.47 (t, J = 7.1Hz, 2H), 4.80-4.84 (m, 1H), 5.04 (s, 4H), 5.44 (s, 2H), 5.76 (d, J = 7.8Hz, 1H), 6.85- 6.88 (m, 1H), 6.97-7.00 (m, 2H), 7.14 (d, J = 8.1Hz, 1H), 7.19-7.29 (m, 4H), 7.35-7.47 (m, 4H), 7.75-7.78 (m, 1H) 91h (DMSO-d6) 8 1. 22 (t, J = 7. 1Hz, 3H), 421 (MH+) (q, J = 7.1Hz, 2H), 4.52 (t, J = 6.4Hz, 2H), 4.79 (s, 2H), 5.43 (s, 2H), 7.00- 7.10 (m, 2H), 7.10-7.30 (m, 4H), 7.61-7.72 (m, 2H) 0 (CD3UDM. 6-1. 72 (m, 2H), 1. 83-450 (MB+) 1. 88 (m, 2H), 2.41 (t, J = 7.2Hz, 2H), 3.14 (s, 6H), 3.62 (s, 3H), 3.87 (t, J = 8. 0 Hz, 2H), 4.02 (t, J = 6.8Hz, 2H), 5.19 (t, J = 7.8Hz, 2H), 5.86 (s, 2H), 7.22-7.34 (m, 3H), 7.45-7.48 (m, 1H), 7.67-7.79 (m, 3H), 8.11 (d, J = 8.0 Hz, 1H) 91j (CDC13) 1. 21-1. 29 (m, 3 H), 1.36- 478 (MH+) 1. 46 (m, 2 H), 1.64-1.84 (m, 6 H), 2.29-2.33 (m, 6 H), 2.52 (m, 2 H), 3.88-3.93 (m, 2 H), 4.07-4.14 (m, 2 H), 4.43-4.48 (m, 2 H), 5.42 (s, 2 H), 6.91-7.50 (m, 6 H), 7.75-7.81 (m, 2 H) XTIF (CD3OD) 3.11 (s, 6 H), 3.77 (t, J = 7.8 427 (MH+) Hz, 2 H), 5. 05 (t, J = 7.8 Hz, 2 H), 5. 53 (s, 2 H), 5.72 (s, 2 H), 7.13-7.25 (m, 3 H), 7.72 (d, J = 7.8 Hz, 1 H), /O VJ^U VV 7. 85 (d, J=8. lHz, l H), ö. ü3-ö. ü6 -§tr-Br (CD3OD) 3.11 (s, 6 H), 3. 77 (t, J = 7. 9 505, 507-- Hz, 2 H), 5.02 (t, J = 7. 9 Hz, 2 H), (MH+) 5. 52 (s, 2 H), 5.68 (s, 2 H), 7.07 (d, J =8. 4Hz, l H), 7.32 (dd, J = 1. 6,8.4 Hz, 1 H), 7.43-7.55 (m, 2 H), 7.70- 7.73 (m, 2 H), 7.83 (d, J = 7. 9 Hz, 1 H), 8.03 (d, J = 6. 3 Hz, 2 H), 8.83 (d, J=6. 0 Hz, 2H) 91M (CD30D) 3.09 (s, 6 H), 3.82-3.95 (m, 506 (MH+) lu, 2 H), 5.13 (s, 2 H), 5.20-5.24 (m, 2 -r H), 5.94 (s, 2 H), 7.17-7.24 (m, 3 H), 7.30-7.38 (m, 2 H), 7.47-7.52 (m, 3 H), 7.65-7.78 (m, 3 H), 8.18 (d, J = 8.0 Hz, 1 H) 91n (CDC13) 231 (s, 6 H), 2. 57 (t, 3 = 6. 6 53 (MH+) I Hz, 2 H), 4.53 (t, J = 6. 7 Hz, 2 H), "Zl 5. 04 (s, 2 H), 5.06 (s, 2 H), 5.46 (s, 2 H), 6.92-6.95 (m, 3 H), 7.01-7.04 (m, 2 H), 7.27-7.43 (m, 10 H), 7.49-7.52 (m, 1 H), 7.79-7.83 (m, 1 H) 'RF~ (CD3OD) 3.13 (s, 6 H), 3.87 (t, J = 7. 9 505 (M-H-) I Hz, 2 H), 5.20 (t, J = 7. 7 Hz, 2 H), nos 5. 34 (s, 2 H), 5.91 (s, 2 H), 7.19-7.24 (m, 3 H), 7.48-7.52 (m, 1 H), 7.63- 7.77 (m, 5 H), 8.09-8.12 (m, I H), 8.22-8.26 (m, 2 H) u Hz, 2 H), 5. 24 (t, J=7. 9 Hz, 2 H), 5. 29 (s, 2 H), 5.96 (s, 2 H), 7.19-7.24 (m, 3 H), 7.50-7.53 (m, 1 H), 7.60 (d, J = 8. 3 Hz, 1 H), 7.67 (d, J = 7. 5 Hz, 1 H), 7.71-7.80 (m, 5 H), 8.17 (d, J= 8. 1Hz, lH) 9bq-vFD3OD) 2. 02RE33 (m, 4 H), 3. 22---510 (MH+) lu1 3. 33 (m, 2 H), 3.78-3.89 (m, 2 H), 3. 90 (s, 3 H), 3.94 (t, J = 7. 9 Hz, 2 H), 5.21 (t, J = 7. 2 Hz, 2 H), 5.27 (s, 2 H), 5.94 (s, 2 H), 7.17- 7.25 (m, 3 H), 7.49-7.53 (m, 3 H), 7.69-7.81 (m, 3 H), 8.02 (d, J = 8. 2 Hz, 2 H), 8.16 (d, J=7. 9Hz, lH) HG- (DMSO-d6) 1.27 (t, J = 6. 9 Hz, 6 H), 562 (MH+) 3. 29 (s, 6 H), 3.81 (t, J = 7. 6 Hz, 2 H), T, 10 4.06-4.12 (m, 4 H), 5.19 (t, J = 7. 6 Hz, 2H), 5.26 (s, 2 H), 5.88 (s, 2 H), 7.16- 7.21 (m, 3 H), 7.46-7.79 (m, 8 H), 8.09 (d, J=7. 8Hz, l H) 9bus- 3 s,,. m, + m y. LV. i/.. i v u. -ri-. . v G J1V yvmt ° H), 3.52 (s, 3 H), 3.62 (s, 6 H), 4.82 (bs, 2 H), 5.22-5.36 (m, 2 H), 5.77 (bs, 2 H), 6.32 (s, 2 H), 6.77 (d, J = 7. 8 Hz, 1 H), 6.85-7.03 (m, 2 H), 7.18-7.29 (m, 1 H), 7.35-7.51 (m, 2 H), 7.82-7.92 (m, 1 H), 8.10-8.25 (m, 1H) Compound 92 To a solution of compound 89 (502 mg, 1.5 mmol), 4-N, N-dimethylaminobenzyl alcohol (prepared as described by Swami, S. S. et al, Synth Commun., 29 (12), 2129- 2131, 1999) (272 mg, 1.8 mmol), and l, l'- (azodicarbonyl) dipiperidine (453 mg, 1.8 mmol) in THF was added tributylphosphine (364 mg, 1.8 mmol) at 0°C. The final solution was allowed to warm to room temperature and stirred for 12 h. The solvent is evaporated the and the residue purified by preparative reverse phase HPLC to yield 420 mg (60%) of compound 92 as a viscous oil.

'H NMR (DMSO-d6) 8 3.06 (s, 6H), 3.16 (s, 6H), 3.67 (t, J = 7.5 Hz, 2H), 4.99 (t, J = 7.5 Hz, 2H), 5.18 (s, 2H), 5.61 (s, 2H), 7.09-7.18 (m, 3H), 7.37-7.53 (m, 7H), 7.66- 7.78 (m, 2H); MS m/e 469 (MH+).

Compound 93 A mixture of compound 91i (50 mg, 0.10 mmol), N-methylpiperidine (12 mg, 0.12 mmol), sodium t-butoxide (14 mg, 0.15 mmol), dipalladium (0) (9 mg, 0.01 mmol) and (R)- (+)-BINAP (19 mg, 0.03 mmol) in toluene (2 ml) was heated to 100°C for 2 h. The solvent is evaporated and the residue purified by preparative reverse phase- HPLC to yield 54 mg (100%) of compound 93 as a white solid.

'H NMR (CD30D) 8 2. 93 (s, 3H), 3.05 (s, 6H), 3.18-3.24 (m, 2H), 3.57-3.69 (m, 4H), 3.78-3.82 (m, 2H), 4.92-4.98 (m, 2H), 5.09 (s, 2 H), 5.56 (s, 2H), 6.98-6.99 (m, 2H), 7.06-7.09 (m, 3 H), 7.28-7.34 (m, 2H), 7.38-7.47 (m, 3H), 7.66-7.72 (m, 2H); MS m/e 524 (MH+).

Compound 94

Compound 94 was prepared using the same procedure as compound 88 with N- (2-chloroethyl) pyrrolidine hydrochloride in 82% yield: 'H NMR (CDCl3) 8 1.70 (bs, 4H), 2.23 (s, 3H), 2.50 (bs, 4H), 2.66 (t, J = 7.0 Hz, 2H), 4.48 (t, J = 7.0 Hz, 2H), 5.20 (s, 1H), 5.37 (s, 1H), 5.39 (s, 2H), 7.02-7.09 (m, 3H), 7.24-7.35 (m, 2H), 7.35-7.40 (m, 1H), 7.47-7.50 (m, 1H), 7.75-7.80 (m, 1H) ; IR (KBr, cm-1) 2956,2796,1701,1489,1395,1332,1153,743 ; MS m/e 402 (MH+) ; Anal. Calcd for C24H27N5O : C, 71.79; H, 6.78; N, 17.44 Found: C, 71.55; H, 6.84; N, 17.37 Compound 95

Compound 95 was prepared as described for compound 6.

'H NMR (CDCl3) 1.62-1.80 (m, 4H), 2.46-2.59 (m, 4H), 2.67 (t, J = 7.2Hz, 2H), 4.47 (t, J=7. 4Hz. 2H), 5.40 (s, 2H), 7.00-7.04 (m, 3H), 7.25-7.29 (m, 2H), 7.36-7.43 (m, 2H), 7.76-7.93 (m, 1H), 8.68 (bs, 1H) ; MS m/e 362 (MH+).

Compound 96

Compound 96 was prepared as described for compound 7.

'H NMR (CD30D) 8 2.02-2.33 (m, 4H), 3.22-3.33 (m, 2H), 3.78-3.89 (m, 2H), 3.90 (s, 3H), 3.94 (t, J = 7.9Hz, 2H), 5.21 (t, J = 7.2 Hz, 2H), 5.27 (s, 2H), 5.94 (s, 2H), 7.17- 7.25 (m, 3H), 7.49-7.53 (m, 3H), 7.69-7.81 (m, 3H), 8.02 (d, J = 8.2Hz, 2 H), 8.16 (d, J=7. 9Hz, 1H) ; MS m/e 362 (MH+).

Compound 97

Compound 97 was prepared as described for compound 88 using 2- chloropropyldimethylamine hydrochloride.

'H NMR 9CDCl3) 8 1.74-1.84 (m, 2H), 2.13 (s, 6H), 2.17 (t, J = 6.9 Hz, 2H), 2.23 (s, 3H), 4.41 (t, J = 7.1 Hz, 2H), 5.20 (s, 1H), 5.37 (d, J = 1.4 Hz, 1H), 5.44 (s, 2H), 6.98-7.08 (m, 3H), 7.22-7.28 (m, 2 H), 7.35-7.41 (m, 1H), 7.46-7.52 (m, 1H), 7.75- 7.80 (m, 1H);

MS m/e 390 (MH+).

Compound 98 Compound 98 was prepared as described for compound 6.

'H NMR (CDC13) 8 1.76-1.85 (m, 2H), 2.23 (s, 6H), 2.33 (t, J = 7.1 Hz, 2H, 4.38 (t, J = 7. 3 Hz, 2H), 5.43 (s, 28/H), 6.99-7.02 (m, 3H),. 25-7.29 (m, 2H), 7.35-7.42 (m, 2H), 7.75-7.80 (m, 1H); MS m/e 350 (MH+).

Compound 99 N-methylethanolamine was treated with benzylchloroformate to give (2-hydroxy- ethyl)-methyl-carbamic acid benzyl ester. The product was treated with methanesulfonyl chloride and Et3N in CH2C12 to give methanesulfonic acid 2- (benzyloxycarbonyl-methyl-amino)-ethyl ester. The resulting mesylate is used to alklylate 3 as described for the preparation of 4. The isopropenyl group is removed with acid as described for 6. The product is alkylated as described for compound 7 and the benzyloxy group was removed with catalytic hydrogenation (Pd/C) to give compound 99.

'H NMR (CD30D) 8 2.86 (s, 3H), 3.79 (t, J = 6.7Hz, 2H), 3.90 (s, 3H), 5.16 (t, J = 6.7Hz, 2H), 5.26 (s, 2H), 5.96 (s, 2H), 7.19-7.26 (m, 3H), 7.51 (d, J = 8.3Hz, 3H), 7.68-7.80 (m, 3H), 8.01 (d, J = 8.3Hz, 2H), 8.14 (d, J = 8.2Hz, 1H) ; MS m/e 470 (MH+).

Compound 100 (Scheme I) To a solution of l-ethyl-2-benzimidåzolone (0.5 g, 3.39 mmol) in DMF (10 mL) was added to NaH (136 mg, 3.39 mmol) and the mixture was stirred for 1 hr. 1- Methylsulfonyl-2-iodomethylbenzimidazole (2) (1.14 g, 3. 39 mmol) was added and the mixture was stirred for 12 h. The reaction was diluted with saturated sodium bicarbonate and extracted with ethyl acetate. The organic extracts were combined, dried over sodium sulfate, filtered and evaporated. The residue was purified by silica gel chromatography, eluted with 50 % ethyl acetate in hexanes to give 767 mg (61% yield) of the N-methanesulfonylated derivative of 100a. A mixture of the N- methanesulfonylated derivative of 100 (760 mg, 2.0 mmol) and hydrazine hydrate (0.9 ml) in methanol was heated to reflux for 12h, then cooled and concentrated. The residue was diluted with water and extracted with ethyl acetate. The combined extracts were dried over sodium sulfate, filtered and concentrated. The residue was purified by chromatography on silica gel with 50% ethyl acetate in hexanes as eluant to give 250 mg (28%) of compound 100 as a white solid.

'H NMR (DMSO-d6) 8 1.26 (t, J = 7.1 Hz, 3H), 3.93 (q, J = 7.1 Hz, 2H), 5.27 (s, 2H), 6.99 (t, J = 7.4 Hz, 1H), 7.05-7.06 (m, 2H), 7.07-7.08 (m, 2H), 7.24 (d, J = 8.3 Hz, 1H), 7.40-7.60 (m, 2H) ; MS m/e 292 (MH+).

Compound 101 Compound 100 (500 mg, 1.71 mmol) in DMF (2 mL) was added to a slurry of sodium hydride (60% in mineral oil, 75 mg, 3.14 mmol) in DMF (10 ml) and stirred for 1 h. 2-Bromoacetophenone (375 mg, 1.88 mmol) was added and the mixture was stirred for 48 h. The reaction was diluted with water and extracted with ethyl acetate.

The organic extracts were combined, dried over sodium sulfate and concentrated.

The residue was purified by silica gel chromatography with 50% ethyl acetate in hexanes as eluant to give 474 mg (68% yield) of compound 101 as a white solid: 'H NMR (DMSO-d6) 8 1.05 (t, J = 7. 1 Hz, 3 H), 3.65 (q, J = 7. 1 Hz, 2 H), 5.28 (s, 2 H), 6.15 (s, 2 H), 7.00-7.05 (m, 2 H), 7.13-7.20 (m, 3 H), 7.24-7.27 (m, 1 H), 7.44- 7.49 (m, 1 H), 7.60-7.65 (m, 3 H), 7.73-7.95 (m, 1 H), 8.03 (d, J = 8.4 Hz, 2 H); IR (KBr, cm-') 2956,1706,1686,1497,1219,744; MS mfe 411 (MW) ; Anal. Calcd for C25H22N402-0. 4 H20 : C, 72.20; H, 5.48; N, 13.47 Found: C, 72.04; H, 5.45; N, 13. 66.

Compound 102 To a 0°C solution of compound 101 (350 mg, 0.85 mmol) in MeOH (10 ml) was added NaBH4 (323 mg, 8.53 mmol) and the mixture stirred for 2 h. The reaction was warmed to 23°C and stirred for 12 h. The solvent was evaporated and the residue dissolved in EtOAc and washed with water. The organic layer is dried over Na2SO4

and concentrated. The residue was purified by flash chromatography with 50% EtOAc in hexanes to give 264 mg (75%) of compound 102 as a white solid.

'H NMR (DMSO-d6) 8 1.22 (t, J = 7.1 Hz, 3H), 3.91 (q, J = 6.9 Hz, 2H), 4.42-4.61 (m, 2H), 4.90-4.91 (m, 1H), 5.26-5.31 (m, 1H), 5.40-5.46 (m, 1H), 5.82-5.83 (m, 2H), 6.97-7.08 (m, 2H), 7.15-7.29 (m, 4H), 7.32-7.42 (m, 3H), 7.39-7.61 (m, 4H) ; IR (KBr, cm-') 3200,1701,733; MS m/e 412 (MH+); Anal. Calcd for C25H24N4O2#0.16 H2O : C, 72.29; H, 5.90 ; N, 13.49 Found: C, 72.27; H, 5.72 ; N, 13.33.

Compound 103 To a stirred solution of compound 100 (150 mg, 0.51 mmol) in DMF (10 ml) was addedsodium hydride (22.6 mg, 0.55 mmol) and the mixture sitrred for 1 hour. R- (+)-styrene oxide (123 mg, 1.02 mmol) was added and the mixture heated to 110°C for 2 h. The mixture was cooled, diluted with water and extracted with EtOAc. The combined organic extracts are dried over Na2SO4 and concentrated. The residue is purified by flash chromatography to give compound 103 (34 mg, 16%) as a white solid.

'H NMR (DMSO-d6) 8 1. 22 (t, J = 7.1 Hz, 3H), 3.91 (q, J = 6.9 Hz, 2H), 4.43-4.61 (m, 2H), 4.90-4.93 (m, 1H), 5.16-5.31 (m, 1H), 5.33-5.46 (m, 1H), 5.82-5.83 (m, 2H), 6.97-7.08 (m, 2H), 7.15-7.29 (m, 4H), 7.32-7.42 (m, 3H), 7.39-7.61 (m, 4H); [a] D25=-44. 76 (25°C, c = 0.714, CH2Cl2) MS m/e 412 (MH) ; Anal. Calcd for C25H24N402 : C, 72.80; H, 5.86; N, 13.58 Found: C, 72.50; H, 6.21; N, 12.52.

Compound 104 Compound 104 was prepared by alklylation of compound 100 with 1- methanesulfonyl-4-chloromethyl-benzene as previously described for compound 101.

'H NMR (DMSO-d6) 8 1.96 (s, 3 H), 3.12 (s, 3 H), 4.94 (s, 1 H), 5.19 (s, 1 H), 5.42 (s, 2 H), 5.77 (s, 2 H), 6.95 (d, J= 5. 0,2 H), 7.02-7.07 (m, 3 H), 7.20-7.25 (m, 3 H), 7.61-7.63 (m, 2H), 7.68-7.71 (m, 1H), 7.90-7.98 (m, 1H); MS m/e 473 (MH+).

Compound 105

The isopropenyl group of compound 104 was removed as described for compound 6 and converted to compound 105 as described for compound 7 using 1- methanesulfonyl-4-chloromethylbenzene.

'HNMR (DMSO-d6) 8 3.17 (s, 6H), 4.99 (s, 2H), 5.47 (s, 2H), 5.79 (s, 2H), 6.98- 7.03 (m, 3H), 7.07 (d, J= 5.0,2H), 7.17 (d, J= 5.5,1H), 7.25-7.27 (m, 2H), 7.47- 7.53 (m, 1H), 7.51 (d, J= 4.1,2H), 7.69-7.72 (m, 2H), 7.88 (d, J= 5.0,2H); MS m/e 600 (MH+).

Compound 106 (Scheme II)

To a solution of 2-hydroxymethylbenzimidazole (27.1 g, 182.9 mmol) in a 1: 1 mixture of DMF/THF (200 mL) was added NaH (60% in mineral oil, 8.05 g, 201.2 mmol) at room temperature. After stirring for 1.5 h, 1-bromo-3-methylbutane (29 g, 192 mmol) was added and the mixture was stirred at 75 °C overnight. The mixture was adjusted to neutral pH with concentrated HCl and the solvent was evaporated. The residue was diluted with EtOAc, washed with water, dried over

MgSO4, and evaporated. The residue was crystallized from EtOAc/hexane to give 29 g of compound 106 as white solid. The mother liquor was purified by flash chromatography (EtOAc: hexane= 1: 1 to 2: 1 and then EtOAc: MeOH = 10: 0 to 10: 1) to give additional 5.24 g (total 86% yield) of compound 106.

Compound 107

To a solution of compound 106 (34.24g, 156.9 mmol) in CH2C12 (100 mL) was slowly added SOC12 (28 g, 235.4 mmol) with an ice-bath cooling. The resulting solution was stirred at room temperature for 1 h and evaporated. The residue was dried in vacuum and then triturated in a mixture of CH2Cl2/Et2O to give 41.25 g (96% yield) of compound 107 as a white solid: 'H NMR (DMSO-d6) 8 0.99 (d, J = 6.3 Hz, 6H), 1.72-1.79 (m, 3H), 4.47-4.52 (m, 2H), 5.36 (s, 2H), 7.52-7.61 (m, 2H), 7.82-7.92 (m, 2H); MS m/e 237 (MH+).

Compound 108

A mixture of 107 (200 mg, 0.84 mmol), N-methylbenzimidazole (128 mg, 0.76 mmol) and NaH (33. 6 mg, 0.84 mmol) were stirred in acetonitrile (10 mL) for 1 h. The solvent was evaporated. The residue was diluted with water and extracted with CH2C12. The combined extracts were washed with water, brine, and dried over MgSO4. The solvent was evaporated, and the residue was purified by chromatography to give 65.9 mg (25% yield) of compound 108:

1H NMR (CDCl3) # 0. 92 (d, J = 6. 6 Hz, 6 H), 1.28-1.36 (m, 2 H), 1.61-1.74 (m, 1 H), 3. 45 (s, 3 H), 4.26-4.32 (m, 2 H), 5.42 (s, 2 H), 6.93-7.10 (m, 3 H), 7.27-7.32 (m, 3 H), 7.40 (d, J = 7.4 Hz, 1 H), 7.79-7.81 (m, 1 H); IR (KBr, cm-1) 3425,3054,1706,1499,1399,743 ; MS m/e 349 (MH+) ; Anal. Calcd for C2lH24N4Ol 0. 65 H20 : C, 70.03; H, 7.08; N, 15.56.

Found: C, 70.05; H, 6.83; N, 15.45.

Compound 109 Compound 109 was prepared from the known 1-carboethoxy- benzimidazolone (Meanwell et al J. Org. Chem. 1995,60,1565-1582) and 107 as described above for the preparation of 108.

1H NMR CDCl3) # 0.95 (d, J = 6.6 Hz, 6H), 1.37-1.45 (m, 2H), 1.50 (t, J=7. 1 Hz, 3H), 1.67-1.74 (m, 1H), 4.29-4.35 (m, 2H), 5.38 (s, 2H), 7.10-7.19 (m, 2H), 7.29- 7.33 (m, 3H), 7.47-7.50 (m, 1H), 7.77-7.80 (m, 1H), 7.83-7.86 (m, 1H) ; MS m/e 407 (MH+).

Compound 110 'H NMR (CDC13) 8 0.94 (dd, J = 1. 3,6.6 Hz, 6H), 1.44-1.74 (m, 3H), 3.76 (s, 3H), 4.32-4.38 (m, 2H), 5.46 (s, 2H), 6.67 (d, J = 7.5 Hz, 1H), 6.97-7.09 (m, 3H), 7.27- 7.43 (m, 5H), 7.54 (d, J = 7.6 Hz, 1H), 7.78-7.83 (m, 1H).

Compound 111 Compound 111 was prepared in 49% yield by the same procedure as described for compound 108 with chloride 107 and N-t-butoxycarbonyl-5-chlorobenzimidazolone (Meanwell et al J. Org. Chem. 1995,60,1565-1582): 'H NMR (CDCl3) 5 0.95 (d, J = 6. 7 Hz, 6H), 1. 39-1. 45 (m, 2H), 1.66 (s, 9H), 1.64- 1.77 (m, 1H), 4.29-4.35 (m, 2H), 5.37 (s, 2H), 7.07 (dd, J = 2.0,8., 6 Hz, 1H), 7.28- 7.33 (m, 3H), 7.56 (bs, 1H), 7.69 (d, J = 8.6 Hz, 1H), 7.80-7.82 (m, 1H) ; IR (KBr, cm-1) 2871,1791,1752,1489,1378,1323,1253,1149,1113,742.

MS m/e 469 (MH+) ; Anal. Calcd for C25H29ClN403 : C, 64.03; H, 6.23; N, 11.95 Found: C, 64.29; H, 6.02; N, 11.55.

Compound 112 Compound 111 (200 mg, 0.43 mmol) was dissolved in a mixture of CH2C12 : TFA (3: 1,4 mL). The mixture was stirred at ambient temperature for 5 minutes and then evaporated. The residue was dissolved in CH2Cl2, washed with saturated NaHC03, water, and dried over MgSO4. The residue was purified by chromatography (EtOAc: hexane 1: 1 to 2: 1) to give compound 18 mg of the compound 112 as a light yellow solid: 'H NMR (DMSO-d6) 8 0.94 (d, J = 6.6 Hz, 6H), 1.41-1.48 (m, 2H), 1.63-1.72 (m, 1H), 4.30 (bt, J = 8. 1 Hz, 2H), 5.34 (s, 2H), 7.04 (s, 2H), 7.12-7.27 (m, 3H), 7.52 (d, J = 7. 9 Hz, 1H), 7.60 (d, J = 7.5 Hz, 1H) ; IR (KBr, cri') 2956,1705,1489,1458,1386,741; MS m/e 369 (MI-r) ; Anal. Calcd for C20H21ClN4O#0.4 CF3COOH : C, 60.28; H, 5.20; N, 13.52.

Found: C, 60.49; H, 5.58; N, 13.41.

Compound 113 Compound 113 was prepared using Michael addition conditions described by Popov, I. I. in Khim Geterotskl. Soedin. 1996 (6), 781-792.

IH NMR (CDC13) 8 3. 08 (t, J = 6. 8 Hz, 2H), 4.63 (t, J = 6. 8 Hz, 2H), 4.77 (d, J = 5. 7 Hz, 2H), 5.73 (t, J = 5.7 Hz, 1H), 7.17-7.28 (m, 2H), 7.64 (d, J = 1.2 Hz, 1H), 7.70 (d, J= 1.2 Hz, 1H); MS m/e 202 (MH+) ; Anal. Calcd for C11H11N3O : C 65.66; H, 5.51; N, 20.88.

Found: C, 65.94; H, 5.57; N, 21.08.

Compound 114 To a solution of alcohol 113 (20g, 99.4 mmol) in methylene chloride (50 mL) was slowly added SOC12 (15.4 g, 129.2 mmol). The solution was stirred at room temperature for 3 hours. The solvent was evaporated. The residue was diluted with water and neutralized with saturated aqueous sodium bicarbonate solution, and extracted with ethyl acetate. The combined extracts were washed with water, dried over magnesium sulfate, and evaporated. The residue was triturated with Et2O and hexane to give 19.78 g (91% yield) of compound 114 as a white solid: 'H NMR (CDCl3) 8 3.02 (t, J = 7.0Hz, 2H), 4.65 (t, J = 7.0 Hz, 2H), 4.99 (s, 2H), 7.34-7.44 (m, 3H), 7.79-7.82 (m, 1H) ; MS m/e 220 (MH+) ; Anal. Calcd for CllHloclN3 C, 60.09; H, 4.65; N, 19.13.

Found: C, 60.09; H, 4.65; N, 19.11.

Compound 115

A mixture of N-isopropenyl-2-benzimidazolone (6.90 g, 39.6 mmol) and 1 g of 10 % palladium on carbon in 30 mL of methanol was hydrogenated at 45-55 psi for one hour. The catalyst was filtered and the filtrate was evaporated to give quantitative yield of compound 115 as a white solid: 'H NMR (CDCl3) 8 1.57 (d, J = 7.1 Hz, 6H), 4.70-4.81 (m, 1H), 7.02-7.10 (m, 2H), 7.10-7.20 (m, 2H) ; MS m/e 177 (MH+) ; Anal. Calcd for CloHl2N20 C, 68.16; H, 6.86; N, 15.90 Found: C, 68.05; H, 6.63; N, 15.77.

Compound 116 To compound 115 (5.0 g, 28.37 mmol) and chloride 114 (6.23 g, 28.37 mmol) in THF (50 mL) was added BTPP (7.39 g, 42.6 mmol) at room temperature and stirred for 30 minutes. The solvent was evaporated and the residue was purified by flash chromatography (EtOAc : hexane 1: 2 to 2: 1) to give 7.62 g (75%) of compound 116 as a white solid: 'H NMR (CDCl3) 8 1.58 (d, J = 7. 0 Hz, 6H), 2.68 (t, J = 6.8 Hz, 2H), 4.71-4.83 (m, 1H), 4.81 (t, J = 6. 8 Hz, 2H), 5.40 (s, 2H), 7.06-7.27 (m, 3H), 7.34-7.40 (m, 3H), 7.57-7.61 (m, 1H), 7.82-7.87 (m, 1H); IR (KBr, cm-1) 2250,1694,1493,1396,745; MS m/e 360 (MH+) ; Anal. Calcd for C21H21N5O#0. 3 H2O : C, 69.14; H, 5.97; N, 19.20 Found: C, 69.07 ; H, 5.92 ; N, 19.40.

Compound 117

2-fluoronitrobenzene was treated with aniline in the prescence of K2CO3 in CH3CN and heated to reflux for 12 h. The solution is cooled, filtered and the solvent removed. The nitro group is reduced with catalytic hydrogenation and the diamine treated with CDI to give l-phenyl-1, 3-dihydro-benzoimidazol-2-one.

Compound 118

Compound 118 was prepared by alkylation of compound 117 with compound 114 as described for compound 7.

'H NMR (CDCl3) 8 2.82 (t, J = 6.5 Hz, 2H), 4.86 (t, J = 6.5 Hz, 2H), 5.56 (s, 2H), 7.08-7.21 (m, 3H), 7.34-7.39 (m, 3H), 7.44-7.47 (m, 1H), 7.54-7.57 (m, 4H), 7.72 (d, J = 7.8 Hz, 1H), 7.85-7.89 (m, 1H) ; MS m/e 393 (MH+).

Compound 119 Nitrile 116 (4.6 g, 12.80 mmol), hydroxylamine hydrochloride (3.2 g, 46.07 mmol), and potassium carbonate (3.5 g, 25.60 mmol) were suspended in ethanol/ water (100 mL/50 mL). This mixture was stirred at near reflux (60-80 °C) for 16 hours. The solvent was evaporated. To the residue, water was added to dissolve any inorganic salts. The white solid was filtered and washed with water. The solid was triturated with EtOAc to give 5.0 g (quantitative yield) of compound 119 as a white solid.

'H NMR (DMSO-d6) 8 1.47 (d, J = 6.9 Hz, 6H), 2.39 (t, J =6.8 Hz, 2H), 4.56 (t, J = 6.8 Hz, 2H), 4.61-4.70 (m, 1H), 5.35 (s, 2H), 6.61 (s, 2H), 6.98-7.06 (m, 2H), 7.12- 7.24 (m, 3H), 7.33 (d, J = 7.1 Hz, 1H), 7.54 (t, J = 8.4 Hz, 2H), 8.96 (s, 1H) ; IR (KBr, cri ') 3470,3332,1698,1680,1663,1491,1430,750; MS m/e 393 (MH+) ; Anal. Calcd for C21H24N6O2#2.75 H2O : C, 57.07; H, 6.73; N, 19.01 Found: C, 57.43; H, 6.43; N, 18. 79.

Compound 120 Amidoxime 119 (4.0 g, 10.19 mmol) was suspended in a toluene solution of phosgene (1.92M, 53 mL, 101.92 mmol). The reaction mixture was heated to reflux

(120 °C) for 8 hours under nitrogen. The solvent was evaporated. The residue was taken up in water and the pH was adjusted to 5 by addition of saturated sodium bicarbonate. The aqueous mixture was then extracted with CH2C12 The combined organic extracts were dried over MgSO4, filtered and evaporated. Recrystallization of 4 g of the crude product in hot EtOAc (400-500 mL) gave compound 120 as fine white needles (3.0 g, 75% recovery, 71% yield from 119): To a solution of compound 120 (1.58 g, 3.77 mmol) in MeOH (10 mL) was added IN NaOH (3.77 mL, 3.77 mmol) and evaporated. The residue was taken up in water and filtered. The filtrate was lyophilized to give the sodium salt of compound 120 as an amorphous fluffy white solid (1.56 g, 94% yield): 'H NMR (DMSO-d6) 8 1.46 (d, J = 7.0 Hz, 6H), 2.67 (t, J = 6.7 Hz, 2H), 4.59-4.68 (m, 3H), 5.35 (s, 2H), 6.94-7.05 (m, 2H), 7.14-7.23 (m, 3H), 7.32 (d, J = 7.9 Hz, 1H), 7.52 (t, J = 6.8 Hz, 2H) ; IR (KBr, cm-') 3406,2978,1686,1490,1408,750; MSm/e511 (MH+) ; Anal. Calcd for C22H22N6NaO3 : C, 59.86; H, 5.02; N, 19.04 Found: C, 59.68; H, 5.00; N, 18.78 Compound 121 (Scheme II) To a mixture of 2-fluoronitrobenzene (16.8 g, 119 mmol) and sodium acetate (300 mg) was addedN, N-dimethylethylenediamine (12.5 mL, 113 mmol). After heating to 80 °C for 1 h, the mixture was poured into water, and extracted with EtOAc. The combined organic layers were dried over MgSO4 and evaporated. The crude material was purified by silica gel chromatography (gradient, 1: 1 EtOAc: Hexanes to 5% MeOH in EtOAc) to provide 12.0 g (50% yield) of compound 121 as an orange oil.

'H NMR (CDC13) 6 2.31 (s, 6H), 2.64 (t, J = 6.3 Hz, 2H), 3.35 (t, J = 6. 3 Hz, 2H), 6.63 (t, J = 7.0 Hz, 1H), 6.83 (d, J = 8.5 Hz, 1H), 7.40-7.45 (m, 1H), 8.17 (d, J = 8.6 Hz, 1H), 8.29-8.39 (m, 1H) ; MS m/e 209 (MH ».

Compound 122 A mixture of compound 121 (10.0 g, 47.7 mmol) and 10% Pd/C (500 mg) in ethanol (100 mL) was hydrogenated at 50 psi for 1 h. The mixture was filtered through a pad of celite and the filtrate was evaporated. The residue was recrystallized from hexanes to give 7.52 g (88%) of a flaky brown solid of compound 122.

'H NMR (CDC13) 8 2.26 (s, 6H), 2.59 (t, J = 6.0 Hz, 2H), 3.15 (t, J = 6.0 Hz, 2H), 6.65-6.72 (m, 3H), 6.79-6.82 (m, 1H) ; MS m/e 179 (MH+).

Compound 123 A mixture of ethyl 2,3-dihydro-2-oxo-lH-benzimidazole-l-carboxylate (5 g, 24.3 mmol), K2CO3 (3.35 g, 24.3 mmol) and methyl 4-bromomethyl-benzoate (5.56 g, 24.3 mmol) was stirred in acetonitrile (100 mL) at reflux for 3 h. The mixture was filtered and the filtrate was concentrated. The oily residue was dissolved in methanol (50 mL), treated with sodium methoxide in methanol (1.0 mL, 0.5 M) and stirred for 12 h. The product precipitated from the solution was filtered to give 5.88 g (99% yield) of compound 123 as white solid: 'H NMR (DMSO-d6) 83. 82 (s, 3H), 5.09 (s, 2H), 6.95-6.99 (m, 4H), 7.42 (d, J = 8.4 Hz, 2H), 7.92 (d, J = 8.4 Hz, 2H);

IR (KBr, cm-l) 3464 (br), 1718,1696; MS m/e 283 (MH+) ; Anal. Calcd for C16Hl4N203 : C, 68.08; H, 5.00; N, 9.92.

Found: C, 67.85; H, 5.01; N, 9.84.

Compound 124 A mixture of 123 (5.8 g, 27. 6 mmol), t-butyl bromoacetate (4.1 mL, 27.6 mmol) and potassium carbonate (3.8 g, 27.6 mmol) in acetonitrile (100 mL) was heated to reflux for 3 h. The mixture was cooled to room temperature, filtered and concentrated to give 9.58 g (88% yield) of compound 124 as a white solid: 'H NMR (DMSO-d6) 8 1.41 (s, 9H), 3.83 (s, 3H), 4.66 (s, 2H), 5.17 (s, 2H), 7.02- 7.18 (m, 4H), 7.42 (d, J = 8.1 Hz, 2H), 7.92 (d, J = 8. 1 Hz, 2H); IR (KBr, cm-1) 1742,1721,1715; MS m/e 397 (MH+). <BR> <BR> <BR> <BR> <BR> <BR> <BR> <P>4- (3-Isopropenyl-2-oxo-2, 3-dihydro-benzoimidazol-1-ylmethyl)-N, N-dimethyl- benzamide 4- (3-Isopropenyl-2-oxo-2, 3-dihydro-benzoimidazol-1-ylmethyl)-N, N-dimethyl- benzamide was prepared from 1-isopropenyl-1, 3-dihydro-benzoimidazol-2-one and compound 90 as described for compound 7.

'H NMR (CD30D) 8 2.21 (s, 3H), 2.96 (s, 3H), 3.07 (s, 3H), 5.15 (s, 2H), 5.23 (s, 1H), 5.45-5.46 (m, 1H), 7.05-7.12 (m, 3H), 7.17-7.18 (m, 1H), 7.39-7.43 (m, 4H); MS m/e 336 (MH+).

N, N-Dimethyl-4- (2-oxo-2, 3-dihydro-benzoimidazol-1-ylmethyl)-benzamide N, N-Dimethyl-4- (2-oxo-2, 3-dihydro-benzoimidazol-1-ylmethyl)-benzamide was prepared as described for compound 6.

'H NMR (DMSO-d6) 8 2.86 (s, 3 H), 2.95 (s, 3H), 5.04 (s, 2H), 6.94-7.05 (m, 4H), 7.33-7.37 (m, 4H); MS m/e 296 (MH+).

Compound 125 Ester 124 (5.4 g, 13.6 mmol) was stirred in trifluoroacetic acid (50 mL) at room temperature for 12 h. The mixture was evaporated to give 4.0 g (87% yield) of compound 125 as a light yellow solid: 'H NMR (DMSO-d6) 8 3.88 (s, 3H), 4.72 (s, 2H), 5.22 (s, 2H), 7.06-7.24 (m, 3H), 7.17-7.27 (m, 1H), 7.48 (d, J = 8.1 Hz, 2H), 7.97 (d, J = 8.4 Hz, 2H) ; IR (KBr, cm-1) 3464 (br), 1738, 1720,1666; MS m/e 341 (MH+) ; Anal. Calcd for C18H16N5O#0. 86 H2O : C, 57.67; H, 4.69; N, 7.26.

Found: C, 57.67; H, 4.29; N, 6.95.

Compound 126 Compound 122 (1.32 g, 7.35 mmol) and benzimidazolone 125 (2.5 g, 7.35 mmol) were dissolved in DMF (8 mL). To the solution EDC (3.18 g, 16.2 mmol) was added and the resulting mixture was stirred for 18 h under nitrogen. The mixture was poured into water and extracted into EtOAc. The extracts were dried over MgSO4 and evaporated. The gummy residue was dissolved in 20 mL of acetic acid and the solution was heated to reflux for 6 h. The mixture was evaporated and the residue was diluted with EtOAc, washed with water, dried over MgSO4 and evaporated. The gummy residue was triturated with EtOAc to produce 255 mg (7% yield) of compound 126. A portion of the material was converted to the HC1 salt with excess HC1 in dioxane and the volatile components were removed in vacuo: 'H NMR (DMSO-d6) 8 3.12,3.33 (s, 6H), 4.00 (m, 2H), 4.25 (s, 3H), 5.39 (m, 2H), 5.65 (s, 2H), 6.10 (s, 2H), 7.49 (m, 2H), 7.57 (m, 1H), 7.81 (m, 4H), 7.92 (d, J = 8. 1 Hz, 2H), 8.08 (d, J = 7.8 Hz, 1H), 8.36 (d, J = 8.1 Hz, 2H), 11.67 (s, 1H) ; IR (KBr, cm-1) 3421,2952,1708,1491,1407,1280,750; MS m/e 484 (MH+) ; Anal. Calcd for H29N, 03-2. 25 HC1 : C, 59.22; H, 5.56; N, 12.33.

Found: C, 59.22; H, 5.42; N, 12.01.

Compound 131

Sodium ethoxide was prepared by dissolving fresh cut sodium (0.2 g, 8.40 mmol) in anhydrous EtOH (10 mL). To a solution of methyl ester, compound 126, (1.2 g, 2.48 mmol) in anhydrous EtOH (300 mL) was added the ethanolic sodium ethoxide solution. The reaction mixture was stirred at reflux for 1 hour and the solution was adjusted to pH 1 with 4 N HC1 in dioxane. The solvent was evaporated.

The residue was purified by flash column chromatography (gradient, straight EtOAc to EtOAc/MeOH, 10: 1) and treated with excess 4 N HC1 in dioxane to give 1.07 g (87% yield) of compound 131 as the HC1 salt: 'H NMR (CDC13) 8 1.37 (t, J = 7.2Hz, 3H), 2.26 (s, 6H), 2.51 (t, J = 6.9Hz, 2H), 4.36 (q, J = 7.2Hz, 2H), 4.45 (t, J = 6.9Hz, 2H), 5.16 (s, 2H), 5.47 (s, 2H), 6.80 (d, J = 7.5Hz, 1H), 6.98-7.04 (m, 2H), 7.28-7.35 (m, 2H), 7.28-7.35 (m, 4H), 7.38 (d, J = 8.4Hz, 1H), 7.52 (d, J = 7.2Hz, 1H), 7.78-7.81 (m, 1H), 8.00 (d, J = 8.1Hz, 2H) ; MS m/e 498 (MH).

Compound 132 As described for compound 131, the isopropyl derivative 132 was prepared from compound 126 using sodium isopropoxide.

'H NMR (DMSO-d6) 8 1.29 (d, J = 6.2Hz, 6H), 2.89 (s, 3H), 2.91 (s, 3H), 4.93 (t, J = 7. 8Hz, 2H), 5.07-5.15 (m, 1H), 5.22 (s, 2H), 5.63 (s, 2H), 7.02-7.14 (m, 3H), 7.32- 7.40 (m, 3H), 7.48 (d, J = 8.3Hz, 2H), 7.65 (d, J = 8.0 Hz, 1H), 7.87-7.93 (m, 3H); MS ni/e 512 (MH+).

Compound 133 Compound 133 was prepared as a white powder in 71% yield using the same procedure as compound 8: 'H NMR (DMSO-d6) 8 2.18 (s, 6H), 3.30-3.50 (m, 2H), 4.43 (t, J = 6.3 Hz, 2H), 5.09 (s, 2H), 5.44 (s, 2H), 6.95-7.00 (m, 2H), 7.08-7.25 (m, 1H), 7.52-7.57 (m, SH), 7.54 (t, J = 8.0 Hz, 2H), 7.78 (d, J = 8.0 Hz, 2H).

IR (KBr, cm-1) 3422,1702,1599,1557,1395,750; MS m/e 470 (MH+) ; Anal. Calcd for C27H26N503Na2. 1NaOH*2. 0 H2O : C, 52.88; H, 5.28; N, 11.42.

Found: C, 53.10; H, 4.88; N, 11.02.

Compound 134 Compound 134 was prepared from compound 133 using PyBroP and 2- aziridin-1-yl-ethanol. The aziridine ring was opened during preparative HPLC with MeOH/H20 with 1% TFA as buffer.

1H NMR (DMSO-d6) 2.90-2.92 (m, 6H), 3.08-3.08 (m, 2H), 3.37 (s, 2H), 3.63 (s, 2H), 3.71-3.76 (m, 2H), 4.54 (t, J = 4.8Hz, 2H), 5.02 (t, J = 7.4Hz, 2H), 5.25 (s, 2H),

5.72-5.77 (m, 2H), 7.06-7.15 (m, 3H), 7.38-7.7.70 (m, 5H), 7.70 (d, J = 8.0 Hz, 1H), 8.00 (d, J = 8.0 Hz, 1H), 8.10 (d, J = 8.1Hz, 2H), 9.79 (m, 1H), 11.59 (m, 1H) ; MS m/e 557 (MH+).

Compound 135

Compound 135 was prepared from compound 133 using PyBroP 1-methyl-3- hydroxylpyyrolidine.

'H NMR (CD30D) 8 2.28-2.81 (m, 2H), 3.02 (s, 2H), 3.07 (s, 1H), 3.12 (s, 6H), 3.86- 3.91 (m, 4H), 5.23 (t, J = 8.2Hz, 2H), 5.29 (s, 2H), 5.64-5.69 (m, 1H), 5.94 (s, 2H), 7.16-7.23 (m, 3H), 7.49-7.55 (m, 3H), 7.69-7.82 (m, 3H), 8.07-8.17 (m, 3H) ; MS m/e 553 (MH+).

Compound 136 Compound 136 was prepared using the same procedure as compound 126: 'H NMR (CDC13) 8 2.31 (bs, 6H), 2.58 (bs, 2H), 3.97 (s, 3H), 4.52 (bs, 2H), 5.50 (s, 2H), 5.60 (s, 2H), 6.81 (d, J = 6.8 Hz, 1H), 6.98-7.09 (m, 3H), 7.28-7.42 (m, SH), 7.80-7.83 (m, 1H), 8.07 (dd, J = 1.4,7.4 Hz, 1H) ;

IR (KBr, cri') 1717,1702,1497,1417,1261,742 ; MS m/e 484 (MH+).

Compound 137

Compound 137 was prepared using the same procedure as compound 133: 'H NMR (CD30D) 8 2. 28 (s, 6 H), 2.59 (t, J = 6. 9 Hz, 2 H), 4.50 (t, J = 6. 9 Hz, 2 H), 5.20 (s, 2 H), 5.30 (s, 2 H), 6.98-7.08 (m, 4 H), 7.18-7.32 (m, 5 H), 7.64-7.68 (m, 2 IR (KBr, cni') 1699,168,1586,1560,1492,1395,742; MS m/e 470 (MH+) ; Anal. Calcd for C27H27N5NaO3#.75H2O : C, 64.09; H, 5.68; N, 13.84 Found: C, 63.96; H, 5.49; N, 13.74 Compound 138 To a solution of acid 133 (704 mg, 1.5 mmol), N, N-dimethylamine hydrochloride salt (183 mg, 2.25 mmol), and diisopropylethylamine (386 mg, 3.0 mmol) in DMF (10 mL) was added PyBroP (769 mg, 1.65 mmol) in one portion at the ambient temperature. After stirring overnight, the resulting solution was concentrated. The residue was purified by prep-HPLC to furnish 660 mg (89% yield)

of compound 138 as white solid. To a solution of this solid (660 mg, 1.33 mmol) in methanol (20 mL) was added 4 N HCl in 1,4-dioxane (0.66 mL, 2.66 mmol). The resulting hydrochloride salt precipitated out of solution and was collected by filtration to yield 650 mg (92% yield) of dihydrochloride salt of compound 138 as white crystals: 'HNMR (CD30D) 8 2.99 (s, 3H), 3.10 (s, 3H), 3.12 (s, 6H), 3.87 (t, J = 7.5 Hz, 2H), 5.23 (t, J = 7.5 Hz, 2H), 5.24 (s, 2H), 5.94 (s, 2 H), 7.20-7.23 (m, 3 H), 7.43 (d, J = 8.2 Hz, 2H), 7.48-7.52 (m, 3H), 7.70-7.81 (m, 3H), 8.16 (d, J=8. 3Hz, 1H) ; IR (KBr, crin-1) 3422,1702,1614,1493,1406,1181,753; MS m/e 497 (MH+) ; Anal. calcd for C29H33ClN6O2#2.0HCl#1.0TFA#1.5H2O : C, 52.40; H, 5.39; N, 11.83%; Found: C, 52.21; H, 5.34; N, 11.83% Compound 139 Compound 139 was prepared by the same procedure as compound 138 using N-methylpiperazine and acid 133: 'HNMR (CD30D) 8 2.92 (s, 3H), 3.06 (s, 6H), 3.65 (t, J = 8.0 Hz, 2H), 4.92 (t, J = 7.9 Hz, 2H), 5.22 (s, 2H), 5.54 (s, 2H), 7.09-7.14 (m, 3H), 7.34 (t, J=8. 0Hz, 1H), 7.39-7.47 (m, 6H), 7.66-7.68 (m, 2H); MS m/e 552 (MH+) ; IR (KBr, cm'') 3442,1685,1638,1494,1412,1202,1131; Anal. Calcd for C32H37N702@3TFA*2. 5H2O : C, 48.62; H, 4.83; N, 10.44 Found: C, 48.51; H, 4.44; N, 10.21.

Compound 140 A solution of the methyl ester 126 (484 mg, 1.0 mmol) and hydrazine (250 mg, 5.0 mmol) in MeOH (5 ml) was heated in a sealed tube at 90 °C for 4 h. After cooling, the precipitate formed was collected and washed with cold MeOH and dried to yield compound 140 (84 mg, 17%) as a white solid.

'H NMR (CD30D) 8 3.08 (s, 6H), 3.71-3.78 (m, 2H), 5.01-5.08 (m, 2H), 5.17 (s, 2H), 5.68 (s, 2H), 7.06-7.19 (m, 3H), 7.42-7.57 (m, 5H), 7.70-7.73 (m, 1H), 7.85-7.91 (m, 3H); MS m/e 484 (MH+).

Compound 141 Table 13A-Compounds were prepared as described for compound 138 using acid 133 and a commercially available amine. #Data MS Data 141a (DMSO-d6) 8 2. 76 (d, J = 4. 6Hz, 3H), 483 (MH+) AN_ 2. 95 (s, 6H), 3.56-3.59 (m, 2H), 4.80 (t, J = 7. 8Hz, 2H), 5.18 (s, 2H), 5,52 (s, 2H), 7.02-7.08 (m, 2H), 7.14-7.16 (m, 1H), 7.24-7.27 (m, 1H), 7.32-7.35 (m, 1H), 7.41 (d, J= 8. 4Hz, 2H), 7.62 (d, J = 8.0 Hz, 1H), 7.69 (d, J = 8.2Hz, 1H), 7.78-7.80 (m, 2H), 8.39-8.41 (m, 1H), 9.99 (b, 1H) 14 IJ Jt/11Y11Z 141b (CD30D) 8 3.09 (s, 6H), 3.80-3.84 (m, 547 (MH+) <, N^so, Me 5H), 5.16-5.26 (m, 4H), 5.82 (s, 2H), 7. 05-7.13 (m, 3H), 7.38-7.42 (m, 3H), 7. 53-7.618 (m, 2H), 7.72-7.78 (m, 1H), 7.91-7.99 (m, 3H) 141 (CD30D) 8 3.03-3.13 (m, 9H), 3.38-527 (MH+) WIIXOH 3. 91 (m, 6H), 5.24-5.29 (m, 4H), 5.97 (s, 2H), 7.16-7.26 (m, 3H), 7.44-7.52 (m, 5H), 7.67-7.80 (m, 3H), 8.19 (d, J = 8.2Hz, 1H) 141d (CD30D) 8 2.99 (s, 6H), 3.12 (s, 6H), 3. 40 (t, J = 9.6Hz, 2H), 3.74-3.79 (m, 2H), 3.88 (t, J = 8.0 Hz, 2H), 5.21-5.27 (m, 4H), 5.97 (s, 2H), 7.15-7.25 (m, 3H), 7.49-7.54 (m, 3H), 7.67-7.82 (m, 3H), 7.91 (d, J = 8.3Hz, 2H), 8.17 (d, J = 8. 3Hz, 1H) 141e OH (CDOD) 8 3.06-3.14 (m, 9H), 3.47- 647 (MH+) 3. 88 (m, 10H), 5.21-5.28 (m, 4H), ou 5.95-5.98 (m, 2H), 7.20-7.22 (m, 3H), oH 7.44-7.52 (m, 5H), 7.66-7.80 (m, 3H), OH 8. 17 (d, J = 8. 2Hz, 1H) 1U m H (CD30D) õ 3.10 (s, 6H), 3.88 (t, J =352 (MH+) N s 7. 9Hz, 2H), 5.24 (t, J = 7.9Hz, 2H), 5. 31 (s, 2H), 5.97 (s, 2H), 7.17-7.24 0 11 (m, 3H), 7.44 (d, J = 4.0 Hz, 1H), 7.49 (d, J = 7.3Hz, 1H), 7.62 (d, J = 8. 3Hz, 2H), 7.68-7.80 (m, 4H), 8.07 (d, J = 8.3Hz, 2H), 8.16 (d, J = 8.3Hz, 2H) 14lg (CD, OD) 8 1. 75 (s, 6H), 2.24 (t, J = 535 (MB+) W\, N 7. 8Hz, 2H), 3.58 (t, J = 7.5Hz, 2H), 8) NHN 3.72 (s, 2H), 4.26 (s, 2H), 5.60-5.64 (m, 4H), 5.91 (d, J = 7.5Hz, 2H), 5.98 (d, J = 8.0 Hz, 2H), 6.00-6.06 (m, 1H), 6.06-6.13 (m, 1H), 6.19 (d, J = 8.0 Hz, IH), 6.40-6.46 (m, 3H) 141h (DMSO-d6) 8 35 (s, 6H), 2.74 (t, J = 537 (MS+) N,-NH 6.2Hz, 2H), 4.52 (t, J = 6. 4Hz, 2H), ç tNxHN 5. 23 (s, 2H), 5.76 (s, 2H), 7.01-7.04 NN (m, 2H), 7.14-7.27 (m, 4H), 7.52 (d, J = 8.1Hz, 2H), 7.57 (d, J = 8.6Hz, 2H), 8. 06 (d, J = 8. 0 Hz, 2H) H (CD30D) 5 3. 10 (s, 6H), 3.84 (t, J u N 8.2Hz, 2H), 5.18 (t, J = 7.9Hz, 2H), 5. 30 (s, 2H), 5.90 (s, 2H), 7.15-7.22 0 N (m, 3H), 7.48 (d, J = 7. 6Hz, 1H), 7.59 (d, J = 8.9Hz, 2H), 7.63 (t, J = 7.3Hz, 1H), 7.69 (t, J = 7.3Hz, 1H), 7.77 (d, J = 8.2Hz, 1H), 8.04 (d, J = 8.9Hz, 2H), 8.07 (d, J= 8. 2Hz, 1H), 8.39 (d, J = 7. 6Hz, 2H), 8.66 (d, J = 7.6Hz, 2H) 141j H 6H), 2.64 (t, J = 547 (ME1+) N N 6. 9Hz, 2H), 4. 51 (t, J = 6.9Hz, 2H), 8 bo 8 5. 27 (s, 2H), 5.53 (s, 2H), 7.04-7.07 N (m, 3H), 7.22-7.34 (m, 3H), 7.52-7.55 (m, 3H), 7.96 (d, J = 8.3Hz, 2H), 8.32 (dd, J= 1.1,5.8Hz, 1H), 8.64 (d, J= 5.9Hz, 1H), 8.86 (s, 1H) 141k H (CD, OD) 8 3. 04 (s, 6H), 3.74-3.79 (m, 561 (MH+) N 2H), 5.08-5.13 (m, 2H), 5. 21 (s, 2H), 1 HJ 5. 81 (s, 2H), 7.08-7.15 (m, 4H), 7.40 (d, J = 6. 6Hz, 1 H), 7.47 (d, J = 8. 4Hz, 1H), 7.53-7.64 (m, 2H), 7.70 (d, J = 8.1HZ, 1H), 7.86 (d, J = 8. 4Hz, 2H), 7.98 (d, J = 6. 6Hz, 3H), 8.73 (d, J = 6.9Hz, 2H) 1411 OH (CD) 8 2. 65 (s, 3H), 3.08 (s, 6H), 620 (MH+) < N « N 3. 67-3.85 (m, 2H), 4.70 (s, 2H), 4.96 w (s, 2H), 5. 14-5.19 (m, 2H), 5.24 (s, ° OH 2H), 5.87 (s, 2H), 7.10-7.19 (m, 3H), 7.45-7.50 (m, 3H), 7.60-7.64 (m, 2H), 7.75 (d, J = 7.8Hz, 1H), 7.88 (d, J = 8.4Hz, 2H), 8.08 (d, J = 8. lHz, 1H), 8.18 (s, 1H) Compound 142

Carbon disulfide (0.5 mL) was added dropwise to ethylenediamine (5 g, 83.20 mmol). To this solution was added the nitrile (0.55 g, 1.22 mmol) and the resulting solution was stirred at 110 °C for 4 hours (Pharmazie, 1992, (47), 11-14). The excess ethylenediamine was evaporated and the residue was purified by preparative HPLC to compound 142: 'H NMR (CD30D) 8 3.09 (s, 6H), 3.77 (t, J = 7.9Hz, 2H), 4.08 (s, 4H), 5.09 (t, J = 7.7Hz, 2H), 5.29 (s, 2H), 5.75 (s, 2H), 7.07-7.18 (m, 3H), 7.42 (d, J = 7.7Hz, 1H), 7.51 (t, J = 7.6Hz, 1H), 7.57 (t, J = 7.8Hz, 1H), 7.61 (d, J = 7.9Hz, 2H), 7.72 (d, J = 8.1Hz, 1H), 7.85 (d, J = 8.2Hz, 2H), 7.91 (d, J = 8.0 Hz, 1H) MS m/e 494 (MH+) ; Compound 143

A mixture of compound 91m (840 mg, 1.87 mmol), hydroxylamine hydrochloride (195 mg, 2.80 mmol) and triethylamine (321 mg, 3.18 mmol) in ethanol (20 ml) was heated to reflux for 12 h. After cooling, the product precipitated and was collected by filtration. The cake was washed with H2O and cold MeOH.

After drying, 610 mg (67%) of compound 143 was obtained as a white solid.

'HNMR (CD30D) 6 3.11-3.12 (m, 6H), 3.89-3.93 (m, 2H), 5.22-5.25 (m, 2H), 5.30 (s, 2H), 5.98 (s, 2H), 7.13-7.24 (m, 4H), 7.51-7.54 (m, 2H), 7.61-7.79 (m, 5H), 8.17- 8.19 (m, 1H) ; MS m/e 413 (MH+).

Compound 144 A solution of compound 143 (48 mg, 0.10 mmol) in Ac2O (1 ml) was heated to 120°C for 4 h. The solvent was evaporated and the residue purified by prep-HPLC to yield 45 mg (88%) of compound 144 as a white solid.

'H NMR (CDCl3) 8 3.07 (s, 9H), 3.79 (t, J = 7.6Hz, 2H), 5.08 (t, J = 7.9Hz, 2H), 5.19 (s, 2H), 5.74 (s, 2H), 7.10-7.18 (m, 3H), 7.40-7.58 (m, SH), 7.74 (d, J = 7.5Hz, 1H), 7.89-7.99 (m, 3H); MS m/e 508 (MH+).

Compound 145

To a suspension of compound 143 (976 mg, 2.0 mmol), TEA (404 mg, 5.0 mmol) and DMAP (50 mg, 0.41 mmol) in CH2C12 (100 ml) » was added ethyl chloroformate (259 mg, 2.4 mmol). After stirring for 12 h, the solution was concentrated and the residue purified by preparative reverse phase HPLC to yield 980 mg (88%) of compound 145 as a white solid.

'H NMR (DMSO-d6) 8 1.25 (t, J = 7. 2Hz, 3H), 2.95 (s, 6H), 3.55-3.58 (m, 2H), 4.16- 4.20 (m, 2H), 4.80 (t, J = 7.6Hz, 2H), 5.18 (s, 2H), 5.52 (s, 2H), 6.82 (b, 1H), 7.02- 7.08 (m, 2H), 7.16-7.17 (m, 1H), 7.23-7.26 (m, 1H), 7.31-7.35 (m, 2H), 7.41 (d, J = 8.4Hz, 2H), 7.61-7.70 (m, 4H), 9.99 (b, 1H) ; MS m/e 556 (MH+).

Compound 146 Compound 146 was prepared as described for compound 145 using N, N- dimethylcarbamoyl chloride.

'H NMR (CD30D) 2.97-3.05 (m, 12H), 3.62-3.66 (m, 2H), 4.92-4.95 (m, 2H), 5.22 (s, 2H), 5.60 (s, 2H), 7.11-7.15 (m, 3H), 7.41-7.44 (m, 4H), 7.46-7.48 (m, 1H), 7.70- 7.75 (m, 4H); MS m/e 555 (MH+).

Compound 147 A solution of compound 145 (110 mg, 0.20 mmol) and DBU (110 mg, 0.74 mmol) in THF (10 ml) was heated to 80°C in sealed tube for 3h. Evaporated the

solvent. The residue was purified by prep-HPLC to yield 94 mg (92%) of compound 147 as a white solid.

'H NMR (CD30D) 8 3.08 (s, 6H), 3.71-3.78 (m, 2H), 5.00-5.08 (m, 2H), 5.25 (s, 2H), 5.68 (s, 2H), 7.08-7.18 (m, 3H), 7.41-7.58 (m, SH), 7.69-7.78 (m, 3H), 7.82 (d, J = 7.9Hz, 1H) ; MS mle 510 (MH+).

Compound 148

Compound 91m was converted to the tetrazole as described for compound 52.

'H NMR (CD30D) # 3. 13 (s, 6H), 3.87 (t, J = 8.0 Hz, 2H), 5.23 (t, J = 7.1Hz, 2H), 5.30 (s, 2H), 5.94 (s, 2H), 7.22-7.24 (m, 3H), 7.49-7.52 (m, 1H), 7.63 (d, J = 8.4Hz, 2H), 7.68-7.81 (m, 3H), 8.03 (d, J = 8.3Hz, 2H), 8.12-8.15 (m, 1H).

Compound 149

Compound 149 was prepared by hydrogenation of compound 146 as described for the hydrogenation of compound 115.

'H NMR (CD30D) 8 3.07 (s, 6H), 3.72 (t, J = 7.5Hz, 2H), 4.95-4.99 (m, 2H), 5.28 (s, 2H), 5.60 (s, 2H), 7.04-7.15 (m, 3H), 7.37-7.44 (m, 3H), 7.58-7.79 (m, 6H); MS m/e 468 (MH+).

Compound 150 Compound 150 was prepared by catalytic hydrogenation of compound 91k as described for compound 149 above.

'H NMR (CD30D) 8 3.13 (s, 6H), 3.90 (t, J = 7.9 Hz, 2H), 5.21-5.26 (m, 4H), 5.97 (s, 2H), 7.16-7.26 (m, 3H), 7.42-7.52 (m, 3H), 7.61 (d, J = 8.5 Hz, 2H), 7.66-7.81 (m, 3H), 8.16 (d, J=7. 9Hz, 2H) ; MS m/e 441 (MH+).

Compound 151 A mixture of compound 150 (100 mg, 0.18 mmol) and Et3N (55 mg, 0.54 mmol) in methylene chloride (4 mL) was cooled to 0°C. Acetyl chloride (18 mg, 0.23 mmol) was added followed by DMAP (5 mg, catalytic quantity). The reaction mixture was allowed to warm to room temperature gradually and stirring was continued for 16 hours at room temperature under nitrogen atmosphere. A white precipitate was observed. The organic material was washed with dilute aqueous sodium bicarbonate solution (10 mL). The aqueous layer was then extracted with methylene chloride (2 x 20 mL). The combined organic extracts were dried over magnesium sulfate, filtered and evaporated to give a white solid. The solid was triturated with anhydrous diethyl ether and filtered to give compound 151 as a white solid (50 mg, 53 % yield).

'H NMR (DMSO-d6) b 2.00 (s, 3 H), 3.36 (t, J= 6.9 Hz, 2 H), 4.25 (s, 3 H), 4.80 (t, J= 6.9 Hz, 2 H), 5.14 (s, 2 H), 5.34 (s, 2 H), 6.97-7.02 (m, 2 H), 7.07-7.23 (m, 6 H), 7.28 (d, J= 8.5 Hz, 2 H), 7.48-7.54 (m, 4 H), 9.92 (s, 1H) ; IR (KBr, cm~l) : 3308,2929,1694,1610,1516,1495,1407,1311,749.

MS m/e 522 (MH+).

Anal. Calcd for C28H27N9O2 : C, 64.48; H, 5.22; N, 24.17 Found : C, 64.13 ; H, 5.32; N, 23.86.

Compound 152 A mixture of compound 150 (100 mg, 0.18 mmol) and Et3N (55 mg, 0.54 mmol) in CH2Cl2 (5 mL) was cooled to 0 °C. Methanesulfonyl chloride (21 mg, 0.18 mmol) was added and the reaction mixture was allowed to warm gradually to room temperature. After stirring for 5.5 h under nitrogen atmosphere, the organic material was washed with dilute aqueous sodium bicarbonate solution (10 mL). The aqueous layer was then extracted with CHOC'2 (2 x 20 mL). The combined organic extracts were dried over MgSO4, filtered and evaporated. Trituration with anhydrous diethyl ether followed by filtration gave compound 152 as a yellow solid (92 mg, 91% yield).

'H NMR (CD30D) 8 2.95 (s, 3 H), 3.07 (s, 1H), 3.68 (t, J= 6.5 Hz, 2H), 4.26 (s, 3H), 5.14 (t, J= 6.7 Hz, 2H), 5.15 (s, 2H), 5.81 (s, 2H), 7.16-7.28 (m, 6H), 7.43 (d, J= 8.6 Hz, 2H), 7.63-7.75 (m, 3H), 7.99-8.02 (m, 1H) ; IR (KBr, cm-') : 3435,2929,1708,1615,1513,1493,1404,1329,1152,752; MS m/e 558 (MH").

Compound 153 To a solution of compound 150 (600 mg, 1.36 mmol) and Et3N (413 mg, 4.08 mmol) in CH2C12 (10 ml) at 0°C was triflic anhydride (460 mg, 1.63 mmol) dropwise. The solution was warmed to room temperature and stirred for 12 h, washed with sat. NH4Cl, dried, evaporated, and purified by preparative reverse phase HPLC to yield compound 153 (522 mg, 67%) as white solid.

'HNMR (CD30D) 6 3.11 (s, 6H), 3.85 (t, J = 8.1 Hz, 2H), 5.18-5.23 (m, 4H), 5.89 (s, 2H), 7.20-7.29 (m, 5H), 7.43-7.50 (m, 3H), 7.67-7.79 (m, 3H), 8.12 (d, J = 8.0 Hz, 1H) ; MS m/e 573 (MH).

Compound 154 A mixture of compound 91m (50 mg, 0.1 mmol), ethoxyvinyltributyltin (50 mg, 0.12 mmol) and palladium tetrakis (triphenylphosphine) (12 mg, 0.01 mmol) in toluene (1 ml) was heated to reflux under nitrogen. Diluted with CH2Cl2 (20 ml) and washed with sat. NaHCO3, dried and concentrated. The residue was purified by prep- HPLC to yield 35 mg (67%) of compound 154 as a white solid.

'H NMR (CD30D) 8 2.55 (s, 3H), 3.06 (s, 6H), 3.76 (t, J = 7.5Hz, 2H), 5.02 (t, J = 7.5Hz, 2H), 5.23 (s, 2H), 5.67 (s, 2H), 7.07-7.18 (m, 3H), 7.41-7.57 (m, SH), 7.72 (d, J = 7.4Hz, 1H), 7.81-7.83 (m, 1H), 7.96 (d, J = 8.0 Hz, 2H) ; MS m/e 468 (MH+).

Compound 155

To a solution of compound 154 (24 mg, 0.05 mmol) in ethanol was added NaBH4 (14 mg, 0.37 mmol) at 0°C. After stirring at this temperature for 30 min, the reaction mixture was quenched with 1 M HCl then extracted with EtOAc. The organic layer was washed with sat. NaHCO3, dried, and concentrated. The residue was purified by preparative HPLC to yield 18 mg (75%) of compound 155 as a white solid.

'H NMR (CD30D) 8 1.38 (d, J = 6.6Hz, 3H), 3.03 (s, 6H), 3.67 (t, J = 7.8Hz, 2H), 4.77-4.80 (m, 1H), 5.01 (t, J = 7.5Hz, 2H), 5.14 (s, 2H), 5.64 (s, 2H), 7.11-7.14 (m, 3H), 7.32-7.55 (m, 7H), 7.72 (d, J = 7.2Hz, 1H), 7.81 (d, J = 7.5Hz, 1H) ; MS m/e 470 (MH+).

Compounds 156 and 157 A mixture of 2-fluoro-4-methylbenzonitrile (5.0 g, 37 mmol), N- bromosuccinimide (6.4 g, 37 mmol) and AIBN (100 mg) was heated to reflux in CC14 (50 ml) for 12 h. The mixture was filtered and concentrated to give a 3: 2 mixture of 2-fluoro-4-bromomethylbenzonitrile and starting material. A mixture of compound 128 (1.0 g, 2.98 mmol) and 2-fluoro-4-bromomethylbenzonitrile (0.91,2.98 mmol) and Cs2CO3 (0.97 g, 2.98 mmol) in CH3CN (50 ml) was heated to reflux for 30 minutes. The mixture was cooled, filtered and concentrated. The residue was purified by column chromatography (EtOAc to 3% MeOH/EtOAc as eluant) to give

(10 mg, 1%) of the first eluting vinyl compound 157 and (432 mg, 31%) of compound 156 product.

'H NMR (DMSO-d6): 8 2.20 (s, 6H), 2.49-2.55 (m, 2H), 4.44 (t, J = 5.7 Hz, 2H), 5. 18 (s, 2H), 5.45 (s, 2H), 7.01-7.14 (m, 2H), 7.16-7.25 (m, 5H), 7.51-7.58 (m, 4H), 7.77-7.81 (m, 1H), 7.92-7.95 (m, 1H) ; MS m/e 468 (MH+).

Compound 158 A mixture of compound 156 (210 mg, 0.45 mmol) and hydrazine (14 ml, 0.45 mmol) was heated to reflux in butanol for 12 h as described by R. F. Kaltenbach III, R. M. Klabe, B. C. Cordova and S. P. Seitz in Biorg Med. Chem. Lett. 1999,15, 2259-2262. The reaction was incomplete as judged by thin layer chromatography.

Additional hydrazine (0.2 ml) was added and stirring continued at reflux for 12 h.

The solvent was removed and the residue purified by flash column chromatography (3% MeOH/CH2Cl2 to 3% MeOH/CH2Cl2/0. 1% NH40H to give compound 158 (200 mg, 92%) as a white solid.

'H NMR (DMSO-d6) 8 2.19 (s, 6 H), 4.41-4.52 (m, 2 H), 5.13 (s, 2 H), 5.21-5.40 (m, 2 H), 5.45 (s, 2 H), 5.76 (s, 1 H), 6.95-7.08 (m, 2 H), 7.10-7.31 (m, 6 H), 7.52-7.59 (m, 2 H), 7.72 (s, 1 H), 11.40 (s, 1 H); MS m/e 480 (MH+).

Compounds 159 and 160

Compound 158 was treated with methanesulfonyl chloride as described for compound 152 to give a mixture of monomethanesulfonamide compound 160 and dimethanesulfonamide compound 159.

Compound 159; R = H : 'HNMR (DMSO-d6) 8 2.33 (s, 6H), 3.36 (s, 3H), 3.50-3.60 (m, 2H), 4.84-4.90 (m, 2H), 5.27 (s, 2H), 5.57 (s, 3H), 7.00-7.15 (m, 2H), 7.18-7.25 (m, 2H), 7.25-7.40 (m, 2H), 7.40-7.50 (m, 3H), 7.59-7.65 (m, 1H), 7.78-7.81 (m, 2H) ; MS m/e 558 (MH+).

Compound 160; R = Ms (DMSO-d6) 8 2.96 (s, 6H), 3.32 (s, 3H), 3.36 (s, 3H), 3.25-3.65 (m, 2H), 4.80-4.95 (m, 2H), 5.27 (s, 2H), 5.55 (s, 2H), 7.00-7.18 (m, 2H), 7.19-7.40 (m, 3H), 7.60-7.65 (m, 2H), 7.65-7.78 (m, 2H), 7.85-7.95 (m, 1H), 8.01 (s, 1H) ; MS m/e 636 (MH+).

Compound 162

A mixture compound 91n (600 mg, 1.05 mmol) and 10% palladium hydroxide on carbon (160 mg) in 2: 1 MeOH/THF (50 mL/25 mL) was agitated under hydrogen at 55 psi for 48 hours. The reaction mixture was filtered through a pad of Celite and then subjected to column chromatography (2: 1 EtOAc/CH2Cl2) to give compound 162 as a white solid (262 mg, 52% yield).

'H NMR (DMSO-d6) 8 3.35 (t, J = 6.8 Hz, 2H), 4.25 (s, 3H), 4.80 (t, J = 6.8 Hz, 2H), 4.94 (s, 2H), 5.33 (s, 2H), 6.68 (d, J = 8.5 Hz, 2H), 6.95-7.02 (m, 2H), 7.09-7.23 (m, 6H), 7.47-7.54 (m, 2H), 9.39 (s, 1H) ; IR (KBr, cm~') 3247,2944,1664,1613,1597,1515,1491,1445,1413,747; MS m/e 481 (MH+) ; Anal. Calcd for C26H24N8O2: C, 64.99; H, 5.03; N, 23.32 Found: C, 64.79; H, 4.98; N, 23.38.

Compound 163 To the compound 162 (127 mg, 0.26 mmol) DMF (5 mL) was added NaH (60% suspension in mineral oil, 13 mg, 0.32 mmol) while stirring under nitrogen atmosphere. After stirring for 15 minutes, methyl bromoacetate (48 mg, 0.32 mmol) was added. The reaction was stirred at room temperature for 16 hours. Column chromatography on silica gel (gradient, CH2Cl2 to 1% MeOH in CH2C12) gave compound 163 as a solid (142 mg, 97% yield).

'H NMR (DMSO-d6) 8 3.36 (t, J= 6.7 Hz, 2 H), 3.66 (s, 3 H), 4.25 (s, 3H), 4.74 (s, 3H), 4.80 (t, J= 6. 9 Hz, 2 H), 5.00 (s, 2 H), 5.33 (s, 2 H), 6.87 (d, J= 8. 7 Hz, 2 H), 6.98-7.01 (m, 2 H), 7.13-7.23 (m, 4 H), 7.30 (d, J= 8.7 Hz, 2 H), 7.51 (dd, J= 12.9, 7.4Hz, 2H); IR (KBr, cm'') : 2922, 1745,1698,1611,1509,1498,1438,1230,742.

MS m/e 553 (MH+).

Anal. Calcd for C29H28NgO4 : C, 63.03; H, 5.11; N, 20.28 Found: C, 63.20; H, 5.14; N, 18.48 Compound 164

A solution of 2-fluoronitrobenzene (30 mL, 2.84 mmol) in acetonitrile (30 mL) was added to a solution of ethylenediamine (76 mL, 1.14 mmol) in acetonitrile (50 mL). The mixture was stirred at room temperature for 12 h then concentrated to give 51 g (99% yield) of compound 164 as an orange oil.

'H NMR (DMSO-d6) 8 2. 82 (t, J = 6. 0 Hz, 2 H), 3.30 (t, J = 6. 0 Hz, 2 H), 6.66 (t, J = 8.4 Hz, 1 H), 7.05 (d, J = 8.7 Hz, 1 H), 7.53 (d, J = 8.4 Hz, 1 H), 8.30-8.34 (m, 1 H); IR (film, cm-') 1621,1514,1347,740; MS m/e 182 (MH+) ; Anal. Calcd for C8H11N3O2#0. 20 H2O : C, 51.99; H, 6.22; N, 22.74 Found: C, 51. 99; H, 6.29; N, 22.46.

Compound 165 To a mixture of amine 164 (2.0 g, 11 mmol) in CH2C12 (50 mL) was added triethyl amine (1.53 mL, 11 mol) and the mixture was cooled to 0°C.

Methanesulfonyl chloride (0.85 mL, 11 mmol) was added slowly. Once the addition was complete, the reaction mixture was warmed to room temperature and stirred for 12h. The mixture was poured into water and the aqueous layer separated, dried over MgSO4, and evaporated. The residue was chromatographed with 3% methanol in dichloromethane to give 2.55 g (89%) of compound 165 as an orange oil:

'H NMR (DMSO-d6) 5 2.91 (s, 3H), 3.18 (dd, J = 6. 1,11.6 Hz, 2H), 3.39-3.42 (m, 2H), 6.70 (t, J = 9.0 Hz, 1H), 7.08 (d, J = 8.5 Hz, 1H), 7.28 (t, J = 6.1 Hz, exchanges with D20, 1H), 7.55 (td, J = 1.0,6.0, Hz, 1H); 8.07 (dd, J = 1.0,8.7 Hz, 1H) ; 8.23 (br s, 1H exchanges with D20) ; IR (film, cm-1) 1511,1354, 1317, 1151; MS m/e 260 (MH+) ; Anal. Calcd for C9H13N3O4S#0. 5 H2O#0. 08 EtOAc: C, 40.66; H, 5.36; N, 15.26.

Found: C, 40.58; H, 5.29; N, 14.88.

Compound 166 A mixture of compound 165 (1.0 g, 3.9 mmol) and 10% Pd/C (100 mg) in ethanol (50 mL) was hydrogenated at 50 psi for 12 h. The mixture was filtered and the filtrate was evaporated to give an orange oil. The residue was chromatographed (1% MeOH in CH2Cl2) to give 0. 55g (62% yield) of compound 166 as a dark oil: 'H NMR (DMSO-d6) 8 2.91 (s, 3H), 3.17 (br s, 2H), 4.45 (br s, 3H, 1H exchanges with D20), 6.40-6.56 (m, 4H), 7.11 (br s, 1H, exchanges with D20) ; IR (film, cm-l) 3326,1625,1510,1315,1148,738; MS m/e 230 (MH+) ; Anal. Calcd for C9Hl5N302S : C, 46.78; H, 6.63; N, 18.18 Found: C, 46.81; H, 6.79 ; N, 17.81.

Compound 167

Compound 167 was prepared as described for 166 above.

1H NMR (DMSO-d6) # 3.17-3.21 (m, 2H), 3.31-3.35 (m, 4H, 2H exchange with D2O), 6.42-6.57 (m, 4H) ; IR (film, cm-1) 1365, 1143; MS m/e 283 (MH+).

Compound 168 A mixture of 1,3 dihydro-2-H-l-ethylbenzimidazol-2-one (5.0 g, 30.8 mmol), ethyl bromoacetate (3.4 mL, 30.8 mmol) and potassium carbonate (4.25 g, 30.8 mmol) in acetonitrile (50 mL) was heated to reflux for 12h, and then evaporated. To the residue was added 6 N HCl (100 mL) and the resulting mixture was heated to reflux for 4 h. The solution was cooled to room temperature and precipitate was filtered to give 6.2 g (99% yield) of compound 168 as white needles: mp 225-227°C ; 'H NMR (DMSO-d6) 8 1.20 (t, J = 7.1 Hz, 3H), 3.87 (q, J = 7.1,14.1 Hz, 2H), 4.60 (s, 2H), 7.00-7.10 (m, 2H), 7.13-7.16 (m, 1H), 7.21-7.24 (m, 2H); IR (KBr, cm-') 3000,1750,1655,752; MS m/e 230 (MEP) ; Anal. Calcd for CllHl2N203 : C, 59.99; H, 5.49; N, 12.72.

Found: C, 59.82; H, 5.43; N, 12.64.

Compound 169

Acid 168 (0.48 g, 2.2 mmol) was refluxed with thionyl chloride (2 mL) for 30 minutes and then evaporated to dryness. To the residue was added a solution of diamine 166 (0.5 g, 2.2 mmol) and triethylamine (0.55 mL, 4.0 mmol) in CH2Cl2 (10 mL). The reaction mixture was stirred for 12 h and then poured into water. The organic layer was separated, dried over magnesium sulfate, and evaporated. The residue was chromatographed on silica gel eluted with 3% methanol in methylene chloride to give 810 mg (86% yield) of 169 as a light green solid: mp 82-85 °C ; 'H NMR (DMSO-d6) 8 1.23 (t, J = 7.1 Hz, 3H), 2.90 (s, 3H), 3.13-3.17 (m, 2H), 3.18- 24 (m, 2H), 3.90 (q, J = 7.1,14.1 Hz, 2H), 4.71 (s, 2H), 5.18 (t, J = 7.1 Hz, 1H, exchanges with D20), 6.58 (t, J = 7.6 Hz, 1H), 6.67 (d, J = 7.5 Hz, 1H), 7.03-7.24 (m, 6H), 9.44 (s, 1H, exchanges with D20) ; IR (KBr, cm'') 1686, 1522,1317,1149; MS m/e 432 (MI+).

Anal. Calcd for C20H25N5O4#0. 3 H20 : C, 54.98 ; H, 5.91 ; N, 16.03 Found: C, 55.07 ; H, 5.97 ; N, 15.65.

Compound 170

Amide 169 (0.72g, 1.67 mmol) was heated to reflux in acetic acid for 12 h and evaporated. The residue was purified by chromatography (3% MeOH in CH2C12) to give 0.37 g (53% yield) of compound 170 as a white solid: mp 57-60°C ; 'H NMR (DMSO-d6) 8 1.24 (t, J = 7.1 Hz, 3H), 1.90 (s, 3H), 3.38-3.34 (m, 2H), 3.92 (q, J = 7.1,14.7 Hz, 2H) ; 4.49 (t, J = 6.0 Hz, 2H) ; 5.41 (s, 2H); 6.98-7.28 (m, 6H) ; 7.40 (t, J = 6.0,1H, exchanged with D2O), 7.54 (d, J = 7.7Hz, 1H), 7.58 (d, J = 8.1 Hz, 1H) ; IR (KBr cni') 1693,1317,1140,744; MS m/e 414 (MH+).

Anal. Calcd for C20H25N5ORS#1. 1 H20 : C, 55.65 ; H, 5.76; N, 14.75.

Found: C, 55.65; H, 5.74; N, 14.72.

Compound 171 To a mixture of amine 164 (3.0 g, 13.8 mmol) in CH2C12 (50 mL) was added triethyl amine (3.8 mL, 28 mol) and the mixture was cooled to 0°C.

Trifluoromethanesulfonic anhydride (2.32 mL, 13.8 mmol) was added slowly. Once the addition was complete the reaction mixture was warmed to room temperature and stirred for 12h. The mixture was poured into water and the aqueous layer separated, dried over MgS04, and evaporated. The residue was was dissolved in MeOH and treated with 25% NaOH (1 mL) and stirred for 6h. The mixture is acidified and

extracted with EtOAc. The organic layer was dried and concentrated to give 1.07 g (71%) of compound 171.

1H NMR (DMSO-d6) d 3.38 (t, J = 5.8 Hz, 2H), 3.52-3.58 (m, 2H), 6.72 (t, J = 6.8 Hz, 1H), 7.07 (d, J = 8.6 Hz, 1H), 7.55 (t, J = 7.1 Hz, 1H), 8.08 (d, J = 8. 6 Hz, 1H), 8.22 (t, J = 3.06 Hz, 1H, exchanges with D2O) MS m/e 313 (MH+); Anal. Calcd for C9H10F3N3O4S: C, 34.51; H, 3.22; N, 13.41 Found: C, 34. 39 ; H, 3.20; N, 13.24.

Compound 172 To a solution of compound 164 (2 g, 9.2 mmol) in CH2C12 (70 ml) was added Triethylamine (2.32 g, 22.9 mmol) at 0°C. Benzenesulfonyl chloride (1. 95 g, 11.04 mmol) was added slowly and the mixture was stirred overnight at room temperature.

The mixture was diluted with CH2C12 and washed with water, 1N HCl, and brine.

The organic layer was dried over Na2SO4 and concentrated to give 3.06 g (97% yield) of the compound 172 as a yellow solid.

Compound 173 To a solution of compound 164 (2 g, 9.2 mmol) in CH2C12 (70 ml) was added Triethylamine (2.32 g, 22.9 mmol) at 0 C. Isopropylsulfonyl chloride (1.57 g, 11.0 mmol) was added slowly and the mixture was stirred overnight at room temperature.

The mixture was diluted with CH2Cl2 and washed with water, 1N HCI, and brine.

The organic layer was dried over Na2SO4 and concentrated to give 830 mg (31% yield) of the compound 173 as a yellow oil.

Table 14-Compounds were prepared as described for compound 170.

R2 W1 IH-NMR Data MS Data 174a CH2CO2Et Me (DMSO-d6) # 1. 20 (t, J=7.1Hz, 3H), 2.81 471 (MH+) (s, 3H), 3.25 (t, J = 5.9Hz, 2H), 4.07 (q, J = 7.1Hz, 2H), 4.39 (t, J = 5.8 Hz, 2H), 4.69 (s, 2H), 5.34 (s, 2H), 6.94-6.98 (m, 2H), 7.08- 7.16 (m, 4H), 7.45 (d, J = 7.7Hz, 1H), 7.49 (d, J = 7. 9Hz, 1H) 174b CH2CO2Et CF3 (DMSO-d6) # 1. 22 (t, J=6. 3Hz, 3H), 3.5 1-525 (MH+) 3.62 (m, 2H), 4.17 (q, J = 7.2Hz, 2H), 4.45- 4.58 (m, 2H), 4.76 (s, 2H), 5.43 (s, 2 H), 7.05-7.10 (m, 2H), 7.16-7.29 (m, 4H), 7.57 (d, J = 7.8Hz, 2H), 9.81 (s, 1H, exchanges withD2O) 174c CH2CO2Et Ph 1H NMR (DMSO-d6) d 1.21 (t, J= 7. 1,3 MS m/e 534 H), 3.09-3.13 (m, 2 H), 4.15 (q, J= 7.1,2 (MH+); H), 4.45-4.4.67 (m, 2 H), 4.78 (s, 2 H), 5.43 (s, 2 H), 7.01-7.26 (m, 6 H), 7.50-7.65 (m, 5 H), 7.73 (d, J= 7. 1,2 H), 8.03 (t, J= 6.2, 1 H); Table 15-Prepared as described for compound 8. 1 1H-NMR Data MS Data 175a CH2CO2H CF3 (DMSO-d6) 83. 48-3.60 (m, 2H), 4. 43- 497 (MH+) 4.58 (m, 2H), 4.67 (s, 2H), 5.41 (s, 2H), 7.03-7.10 (m, 2 H), 7.14-7.27 (m, SH), 7.54 (d, J=7.8 Hz, 2H) C (DMSO-d6 8 2. 78 (s, 3H), 3.32 (t, J= = 5.2 Hz, 2H), 4.45 (t, J=5. 8Hz, 2H), 4.65 (s, 3H), 5.41 (s, 2H), 6.99-7.10 (m, 2 H), 7.10-7.22 (m, 4H), 7.52-7.58 m, c cl (DMSO-d6) 8 2.84 (s, 3H), 6.38-6. 46 H (m, 2H), 4.55-4.61 (m, 2H), 5.60 (s, 2H), 5.76 (s, 2H), 7.02-7.06 (m, 2H), 7.14-7.16 (m, 1H), 7.27-7.31 (m, 2H), sr 7. 36-7. 39 (m, 1H), 7.44-7.46 (m, 1H), 7. 49 (d, J = 8. 1 Hz, 2H), 7. 61 (d, J = 7.9 Hz, 1H), 7.74 (d, J = 7. 8 Hz, 1H), 7.92 (d, J=8. 1Hz, 2H) 175d CH2CO2H iPr (DMSO-d6) d 1.11 (d, J = 6.8,6 H), 500 (MH+) 1.22 (t, J= 7. 1,3 H), 3.07-3.16 (m, 2 H), 4.16 (q, J= 7. 1,2 H), 4. 31-4. 33 (m, 2 H), 4.78 (s, 2 H), 5.44 (s, 2 H), 7.00- 7.08 (m, 2 H), 7.13-7.27 (m, 3 H), 7. 35 (t, J= 6. 3,1 H), 7.53-7.59 (m, 2 H); Compound 176 To a slurry of compound 164 (2.0 g, 9.2 mmol) and KHCO3 (2.3 g, 23.0 mmol) was added methyl chloroformate (1.42 ml, 18.4 mmol) and the mixture stirred at 23°C for 12h. The reaction mixture is extracted with EtOAc. The organic extracts are combined, dried over MgSO4 and concentrated to give 1.82 g (83%) of compound 176 as a yellow solid.

'H NMR (DMSO-d6) 8 3.19-3.25 (m, 2H), 3.39-3.45 (m, 2H), 3.52 (s, 3H), 6. 67 (t, J = 7. 3Hz, 1H), 7.12 (d, J = 8.7Hz, 1H), 7.37 (br t, 1H, exchanges with D2O), 7.53 (t, 7.2 Hz, 1H), 8.04 (d, J = 8.7 Hz, 1H), 8.20 (br t, 1H, exchanges with D20) IR (film, cm-1) 1736, 1515,1353; MS m/e 239 (MH+) ; Anal. Calcd for C10H135N3O4: C, 50.21; H, 5.48; N, 17.56 Found: C, 50.15; H, 5.61; N, 17.58.

Compound 177

Compound 177 was prepared as described for compound 166 above.

'H NMR (DMSO-d6) # 3. 03-3.10 (m, 2H), 3.16-3.22 (m, 2H), 3.53 (s, 3H), 4.40-4.45 (m, 2H, exchanges with D20), 6.38-6.55 (m, 4H), 7.21 (t, J = 5.3 Hz, 1H, exchanges with D20) ; IR (film, cm-1) 1702,1565, 733; MS m/e 209 (MH+).

Table 16-Compounds were prepared as described for compound 170 using 177.

R2 1H-NMR Data MS Data a Et 1H NMR (DMSO-d6) d 1.23 (t, J=7.1, 3 MS m/e 39 H), 3.32-3.38 (m, 2H), 3.47 (s, 3 H), 3.91 (MH+); (q,J=7.2,2 H), 4.43 (t, J=6.0, 2 H), 5.33 (s, 2 H), 6.97-7.09 (m, 2 H), 7. 13-7.24 (m, 4H), 7. 46-7.55 (m, 2H); 178b CH2CO2Et DMSO-d6 : 1.22 (t, J=7.10 Hz, 3H), 3.33 451 (s, 3H), 3.32-3.42 (m, 2H), 4.17 (q, J = 7. 10 (MH+) Hz, 2H), 4.40-4.48 (m, 2H), 4.79 (s, 2H), 5.37 (s, 2H), 7.01-7.16 (m, 2H), 7.21-29 (m, 3H), 7.32-7.39 (m, 1H), 7.55-7.65 (m, 2H) 178cæ cHlCO2H (DM80-d6) 3.25-3.34 (m, 2 H), 3. 48 (s, 3 423 (MH+) H), 4.41-4.45 (m, 2 H), 4.68 (s, 2 H), 5.37 (s, 2 H), 7.03-7.10 (m, 2 H), 7.05-7.30 (m, 4 H), 7.30-7.38 (m, 2 H), 7.43-7.58 (m, 2 H) a, ester hydrolyzed as described for compound 8.

Compound 179 A mixture of amine 164 (40 g, 220 mmol), trimethyl ortho formate (38.5 mL, 352 mmol) and sodium azide (15.7 g, 242 mmol) in acetic acid (400 mL) was heated to reflux for 12 h. The resulting mixture was cooled to room temperature and poured into IN HCl in ice (300 mL). The precipitate was filtered and recrystallized from ethyl acetate to give 19.2 g (37% yield) of compound 179 as bright yellow needles: 'H NMR (DMSO-d6) a 3.90 (J = 6.6 Hz, 2H), 4.73 (t, J = 6.6 Hz, 2H), 6.72 (t, J = 6.9 Hz, 1H), 7.07 (d, J = 10.2 Hz, 1H), 7.53 (d, J = 6.3 Hz, 1H), 8.06 (d, J = 10.1 Hz, 1 H), 8.18 (t, J = 6. 6 Hz, 1H) ; 9.40 (s, 1 H); IR (KBr, cari') 1621,1514,1347,740; MS m/e 235 (MH+) ; Anal. Calcd for CgHloN6o2 C, 46.15; H, 4.30; N, 35.88.

Found: C, 46.17; H, 4.35; N, 35.85.

Compound 180 A solution of nitroaniline 179 (3.5 g, 14.95 mmol) in ethanol (50 mL) containing 10% Pd/C (200 mg) was hydrogenated at 50 psi for 4 h. The reaction mixture was filtered and concentrated to give 2.8 g (93% yield) of compound 180 as a black solid: 'H NMR (DMSO-d6) 8 3.52 (q, J = 6.0,2H), 4.46 (s, 3H), 4.63-4.69 (m, 3H), 6.45- 6.57 (m, 4H), 9.4 (s, 1H) ; MS m/e 205 (MH+).

Compound 181 N-isopropenyl-2-benzimidazolone (15. 0g, 86.10mmol), methyl bromoacetate (13.2 g, 86.1 mmol) and potassium carbonate (14.25g, 103.26 mmol) were stirred in acetonitrile (300ml) at room temperature overnight. The next day the reaction mixture was filtered and concentrated to give 21. Og (99% yield) of product 181 as a clear oil: 'H NMR (DMSO) 8 2.13 (s, 3H), 3.69 (s, 3H), 4.74 (s, 2H), 5.17 (s, 1H), 5.38 (s, 1H), 7.05-7.23 (m, 4H); IR (KBr, cm-1) 2955,1755,1714,1493,757; MS m/e 247 (Mt).

Compound 182 The solution of ester 181 (3.33g, 17.79mmol) in methanol (20 mL) was stirred with IN NaOH (19.19ml, 19.18mmol) at room temperature overnight. The solvent was evaporated and the residue dissolved in water and acidified with IN HCI.

The precipitate was filtered off, washed with water and dried under vacuum to give 2.7g (91% yield) of compound 182 as a white solid: 'H NMR (DMSO-d6) 8 2.15 (s, 3H), 4.62 (s, 2H), 5.18 (s, 1H), 5.4 (s, 1H), 7.07-7.21 (m, 4H); IR (KBr, cm'') 2967,1751 1675,1206,752; MS m/e 233 (MH+) ;

Anal. Calcd for C, 2Hl2N203 : C, 62.06; H, 5.21; N, 12.06 Found: C, 61.69; H, 5.33; N, 11.98 Compound 183 To a mixture of acid 182 (1.35g, 6. 61mmol) and 2-chloro-1- methylpyridinium iodide (2.02g, 7.92mmol) in acetonitrile (30mL) was added triethylamine (3.21mL, 23.13 mmol), followed by diamine 180 (1.53g, 6.61mmol).

The reaction mixture was stirred at room temperature overnight. The precipitate was filtered and dried under vacuum to give compound 183 (1.281g, 46% yield): mp 184- 186 °C.

'H NMR (DMSO-d6) 8 2.15 (s, 3H), 3.59 (q, J = 6. 5 Hz, 2H), 4.64 (t, J = 6.6 Hz, 2H), 4.71 (s, 2H), 5.17 (s, 1H), 5.36-5. 39 (m, 2H), 6.60 (t, J = 7. 5 Hz, 1H), 6.70 (d, J= 7.4 Hz, 2H), 7.02-7.19 (m, 6H), 9.34 (s, 1H), 9.48 (s, 1H) ; IR (KBr, cm-') 3400,1710,1680,1493,1426,742; MS m/e 419 (MH+) ; Anal. Calcd for H22N802 : C, 60.28; H, 5.30; N, 26.78 Found: C, 59.92; H, 5.31; N, 26.41.

Compound 184

A solution of compound 183 (1.25g, 2.98mmol) in acetic acid (40 ml) was refluxed overnight. The solvent was evaporated to give compound 184 as an off- white solid (850mg, 79% yield): mp >200 °C 'H NMR (DMSO-d6) 8 4.91-4.98 (m, 4H), 5.14 (s, 2H), 6.95-7.0 (m, 3H), 7.10-7.17 (m, 3H), 7.25-7.27 (m, 1H), 7.50-7.54 (m, 1H), 9.28 (s, 1H), 11.03 (s, 1H); IR (KBr, cm-') 3429,3256,1694,1489,738; MS m/e 361 (MH+) ; Anal. Calcd for C18H16N8O# 0.33 H20 0. 35 EtOAc: C, 58.67; H, 4.94; N, 28.21 Found: C, 58.55; H, 4.69; N, 27.83 Compound 185 A mixture of compound 184 (1.0 g, 2.77 mmol) and Cs2CO3 (904 mg, 2.77 mmol) in CH3CN (40mL) was heated to reflux for 10 minutes, and then methyl 4- (bromomethyl) benzoate (636mg, 2.77mmol) in CH3CN (5 mL) was added. The resulting mixture was refluxed for 30 minutes and cooled to room temperature. The mixture was filtered and the filtrate was evaporated. Flash chromatography (MeOH: CH2Cl2 = 5: 95) gave 700 mg (50% yield) of compound 185 as a white solid: mp 144-147 °C ;

'H NMR (DMSO-d6) 8 3.83 (s, 3H), 4.94-5.01 (m, 4H), 5.21 (s, 2H), 5.27 (s, 2H), 6.7-7.07 (m, 2H), 7.11-7.19 (m, 3H), 7.22-7.31 (m, 2H), 7.48 (d, J = 8.3 Hz, 2H), 7.54-7.56 (m, 1H), 7.93 (d, J=8. 3 Hz, 2H), 9.31 (s, 1H) ; IR (KBr, cm-l) 3423,1714,1437,1284,1110,748; MS m/e 509 (MH+) ; HRMS calcd for C27H24N803, 509.2049; found, 509.2046 Compound 186 To a solution of compound 185 (1.82 g, 3.57 mmol) in methanol (110 mL) was added lithium hydroxide monohydrate (0.90g, 21.47mmol) in water (20 mL).

The resulting mixture was stirred overnight at room temperature and evaporated. The residue was diluted with water and acidified with IN HC1. The white precipitate was filtered and dried under vacuum. To the solid in methanol (120 mL) was added one equivalent of 0.5 M NaOMe (5.5 mL) at room temperature under nitrogen and the solution was stirred for 3 hours. The solvent was evaporated and dried under vacuum to give 1.38 g (74% yield) of compound 186 as a white solid: 'HNMR (DMSO-d6) 6 4.92-5.05 (m, 4H), 5.18 (s, 2H), 5.26 (s, 2H), 7.01-7.03 (m, 2H), 7.1-7.29 (m, 3H), 7.38-7.45 (m, 2H), 7.51-7.54 (m, 1H), 7.89 (d, J = 8.3,4H), 9.29 (s, 1H) ; IR (KBr, cm-') 3406,1695,1599,1556,1396,750; MS m/e 495 (MH+).

Compound 187 To a mixture of acid 186 (250 mg, 0.5 mmol), dimethylamine hydrochloride (62 mg, 0.75 mmol) and diisopropyl ethylamine (131 mg, 1.0 mmol) in DMF (10 mL) was added PyBroP (283 mg, 0.60 mmol) in one portion. The reaction was stirred at room temperature overnight, quenched with MeOH (1 mL), and evaporated.

The residue was taken into ethyl acetate and washed with 5% KHSO4, 5% NaHC03, brine, dried over Na2SO4, and evaporated. The crude solid was washed with ethyl acetate and large portions of water to give 181 mg (69% yield) of compound 187 as a white solid: mp >200 °C 'H NMR (DMSO-d6) S 2.86 (s, 3H), 2.95 (s, 3H), 4.93-4.95 (m, 2H), 5.0-5.02 (m, 2 H), 5.15 (s, 2H), 5.26 (s, 2H), 7.02-7.04 (m, 2H), 7.14-7.17 (m, 3H), 7.23-7.24 (m, 1H), 7.28-7.3 (m, 1H), 7.38 (q, J = 5.0 Hz, 4H), 7.53 (d, J = 5.3 Hz, 1H), 9.31 (s, 1H) ; MS m/e 521 (MH+).

Compound 188 Compound 184 (300mg, 0.83mmol) in THF (5 mL) was added BTPP (0. 51mL, 1.82mmol) under nitrogen at 0 °C. After stirring for 15 minutes, methyl 3- (bromomethyl) benzoate (190.7 mg, 0.83 mmol) was added. The reaction mixture was allowed to warm up to room temperature overnight under nitrogen and

evapoarted. The residue was diluted with water and extracted with ether and ethyl acetate. The combined extracts were dried over Na2SO4 and evaporated. The crude product was purified by flash chromatography on silica gel using CH2Cl2 : MeOH: NH40H = 90: 10: 1 to give 196mg (46% yield) of compound 188 as a white solid: mp 162-164 °C ; 'H NMR (DMSO-d6) 8 3.85 (s, 3H), 4.92-5.05 (m, 4H), 5.19 (s, 2H), 5.27 (s, 2H), 6.99-7.05 (m, 2H), 7.11-7.17 (m, 3H), 7.20-7.28 (m, 2H), 7.48-7.55 (m, 2H), 7.63 (d, J = 7. 9 Hz, 1H), 7.85 (d, J = 6.5 Hz, 1H), 7.97 (s, 1 H), 9.29 (s, 1H) ; IR (KBr, cm-l) 3424,1701,1494,1434,1289,748 ; MS m/e 509 (MH+) ; Anal. Calcd for C27H24N8O3#0. 55 EtOAc: C, 62.97; H, 5.14; N, 20.12 Found: C, 63.22; H, 4.75; N, 19.73.

Compound 189 Compound 188 (100 mg, 0.19mmol) in methanol (lOmL) was stirred with IN NaOH (0.3 mL) at room temperature for 2 days, and then refluxed for 3 hours. The solvent was removed. The residue was diluted with water and acidified to pH 5 with IN HC1. The white precipitate was filtered and dried under vacuum. The solid in methanol (5mL) was stirred with 0. 5M NaOMe (0. 34 mL) at room temperature under nitrogen for 3 hours. The solvent was evaporated and the residue was dried under vacuum to give 87mg (86% yield) of the sodium salt of compound 189 as a white solid: 'H NMR (DMSO-d6) 5 4.92-5.0 (m, 4H), 5.09 (s, 2H), 5.27 (s, 2H), 6.99-7.29 (m, 9H), 7.53-7.56 (m, 1H), 7.72 (d, J = 7.2 Hz, 1H), 7.81 (s, 1H), 9.34 (s, 1H) ; IR (KBr, cri') 3412,1698,1566,1492,1390, 750 ; MS m/e 495 (MH+).

Compound 190 The tetrazole was dissolved in MeOH (30 ml) and NaOH (1N, 2 eq) was added and the mixture stirred for 12 h. The solvent removed and the resulting mixture was adjusted to pH 7 with IN HC1. The product was extracted with EtOAc and the organic extracts were combined, dried over Na2sO4 and concentrated to give the products in the table below.

Table 16-Compound prepared as described for 190. -aa aa lia z 1H (DMSO-d6) d 1. 86-1. 90 (m, MSm/e437 (MH+) ; 2 H), 2.29 (t, V= 7. 2,2 H), 3.90 (t, J= 7.0,2 H), 4.39 (t, J= 6. 3,2 H), 5.19 (s, 2 H), 5.36 (s, 2 H), 6.13 (t, J= 5. 9,1 H), 6.98-7.13 (m, 6 H), 7.19-7.24 (m, 2 H), 7.49-7.57 (m, 2 H), 12.06 (s, 1H) ; -ERRF 1H NMR (DMSO-d6) d3. 34 (t, J=6. U, MS m/e485 (MH+) ; 2H), 4.41 (t, J=6. 0,2 H), 5.19 (s, 2 n H), 5.42 (s, 2 H), 5.60 (s, 2 H), 6.16 (t, ° J = 5. 9,1 H), 6.99-7.02 (m, 2 H), 7.10- 7.26 (m, 4 H), 7.45 (d, J=8. 2,2), 7.50-7.58 (m, 2H), 7.90 (d, J= 8. 2, 2H); E SO, H 1H NMR (DMSO-d6) d3. 35-3. 40 (m, MS m/e521 (MB+) ; 2 H), 4. 44 (t, J=6. 9 Hz, 2H), 5.47 (s, 2 H), 5.56 (s, 2 H), 5.62 (s, 2 H), 6.85- 7. 02 (m, 4 H), 7.15-7.30 (m, 5 H), 7. 52-7.61 (m, 2 H), 7.81-7.88 (m, 1 H) ;

Compound 191 Compound 191 was prepared using the same procedure described for compound 4, except that 3-methylbromobutane was replaced with 4-bromobutyl acetate.

'H NMR (CDC13) 8 1.68-1.72 (m, 2H), 1.91-1.94 (m, 2H), 2.03 (s, 3H), 4.07 (t, J = 6.4 Hz, 2H), 4.26 (t, J = 7.5 Hz, 2H), 4.86 (s, 2H), 6.86 (bs, 1H), 7.20-7.29 (m, 3H), 7.65 (dd, J = 1. 8,6. 7 Hz, 1HU); MS m/e 263 (MH+).

Compound 192 Compound 192 was prepared according to the same procedure described for compound 6.

1H NMR (CDCl3) # 1.80-1.86 (m, 2H), 2.03 (s, 3H), 2.06-2.12 (m, 2H), 4.14 (t, J = 6.1 Hz, 2H), 4.55 (t, J = 8. 1 Hz, 2H), 5.42 (s, 2H), 7.48 (t, J=7. 3Hz, lH), 7.55 (t, J = 7. 3 Hz, 1H), 7.64 (d, J = 8.5 Hz, 1H), 7.78 (d, J = 8.2 Hz, 1H) ; MS m/e 281 (MH+).

Compound 193 Compound 193 was prepared as described for compound 4. The acetate group was removed by stirring with MeOH for 1 hour before work-up as previously described.

'H NMR (DMSO-d6) 8 1.38-1.45 (m, 2H), 1.46-1.65 (m, 2H), 2.19 (s, 3H), 3.15-3.21 (m, 2H), 4.32-4.40 (t, J = 7.5 Hz, 2H), 4.40-4.46 (m, 1 H), 5.20 (s, 1H), 5.38 (s, 2H), 5.43 (s, 1H), 7.02-7.16 (m, 2H), 7.16-7.36 (m, 3H), 7.50-7.62 (m, 2H), 8.55 (s, 1H) ; MS m/e 376 (MH+).

Compound 194 Compound 194 was prepared as described for compound 115.

'NMR (DMSO-d6) 5 1.39-1.45 (m, 2H), 1.46 (d, J = 6.9 Hz, 6H), 1.54-1.59 (m, 2H), 3.33-3.37 (m, 2H), 4.33 (t, J = 7.5 Hz, 2H), 4.45 (t, J = 5.1 Hz, 1H), 4.63-4.68 (m, 1H), 5.35 (s, 2H), 6.98-7.05 (m, 2H), 7.17 (t, J = 7. 6 Hz, 1H), 7.23 (t, J = 8. 8 Hz, 2H), 7.33 (d, J=8. 4Hz, lH), 7.54 (d, J=8. 0Hz, lH), 7.60 (d, J = 7. 9 Hz, 1H) ; MS m/e 378 (MH+).

Compound 195 Compound 195 was prepared from compound 193 as described for compound 6.

'H NMR (DMSO-d6) 8 1.42-1.47 (m, 2H), 1.59-1.62 (m, 2 H), 3.36-3.40 (m, 2H), 4.33 (t, J = 7. 5 Hz, 2H), 4.46 (t, J = 5. 1 Hz, 2H), 5.32 (s, 2 H), 6.93-7.02 (m, 3H), 7.14-7.19 (m, 2H), 7.22-7.25 (m, 1 H), 7.54 (d, J=8. 0Hz, lH), 7.59 (d, J = 7. 9 Hz, 1H) ; MS m/e 336 (MH+).

Compound 196 Compound 196 was prepared by alkylation of compound 195 with compound 90.

'H NMR (DMSO-d6) 8 1.60-1.68 (m, 2H), 1.69-1.79 (m, 2H), 1.96 (s, 3H), 2.86 (s, 3 H), 2.95 (s, 3H), 3.97 (t, J = 6. 4 Hz, 2H), 4.37 (t, J = 7. 15 Hz, 2H), 5.47 (s, 2H), 6.98- 7.03 (m, 2H), 7.14-7.18 (m, 2H), 7.19-7.28 (m, 2H), 7.35-7.42 (m, 4H), 7.58 (dd, J = 2.9,8.2 Hz, 2H) ; MS m/e 539 (MH+).

Compound 197 Compound 197 was prepared as described for compound 8.

IH NMR (DMSO-d6) 8 1.30-1.45 (m, 2H), 1.47-1.70 (m, 2H), 2.86-2.95 (m, 6H), 3.33-3.39 (m, 2H), 4.34-4.36 (m, 2H), 4.46-4.48 (m, 1H), 5.16 (s, 2 H), 5.43 (s, 2H), 6.95-7.11 (m, 2H), 7.14-7.19 (m, 2H), 7. 22-7.26 (m, 2H), 7. 36-7. 47 (m, 3H), 7.49- 7.59 (m, 3H) ; MS m/e 496 (MH+).

Compound 198 Compound 198 was prepared by alkylation of compound 195.

'H NMR (DMSO-d6) 8 1.59-1.62 (m, 2H), 1.76-1.79 (m, 2H), 1.99-2.02 (m, 2H), 2.54-2.63 (m, 4H), 3.93 (t, J= 4.1,2H), 4.41 (t, J= 4.5,2H), 5.41 (s, 2H), 6.99-7.19 (m, 4H), 7.24-7.28 (m, 2H), 7.56-7.60 (m, 2H) ; MS m/e 413 (MH+).

Compound 199

Compound 199 was prepared as described for compound 7 using Cs2CO3 as base.

'H NMR (DMSO-d6) 8 1.41-1.48 (m, 2H), 1.64-1.71 (m, 2H), 3.36-3. 38 (m, 2H), 4.35 (t, J = 7.8 Hz, 2H), 4.48 (t, J = 5.6 Hz, 1H), 5.23 (s, 2H), 5.43 (s, 2H), 7.01-7. 04 (m, 2H), 7.14-7.28 (m, 4H), 7.52-7.60 (m, 4H), 7.84 (d, J = 8.2 Hz, 2H); MS m/s 452 (MH+).

Compound 200 Compound 200 was prepared as described for compound 22.

'H NMR (DMSO-d6) 8 1.45-1.50 (m, 2H), 1.69-1.75 (m, 2H), 3.39 (t, J = 6. 4 Hz, 2H), 4.44 (t, J = 7.4 Hz, 2H), 5.22 (s, 2H), 5.55 (s, 2H), 7.03-7.07 (m, 2H), 7.17-7.21 (m, 1 H), 7.27-7.30 (m, 2H), 7.34-7.37 (m, 1H), 7.59¢ (d, J = 8.3 Hz, 2H), 7.65 (d, J = 8.0 Hz, 1H), 7.71 (d, J = 7.4 Hz, 1H), 8.04 (d, J = 8.3 Hz, 2H); MS m/e 495 (MH+).

Compound 201

Compound 201 was prepared as described for compound 9 except EDC was used as coupling reagent.

'H NMR (DMSO-d6) 8 1.11 (t, J = 6. 9 Hz, 3H), 1.22 (t, J = 6. 9 Hz, 3H), 1.20-1.38 (m, 2H), 1.65-1.80 (m, 2H), 3.41 (t, J = 6. 3 Hz, 2H), 4.04-4.18 (m, 4H), 4.17 (s, 2 H), 4.40-4.52 (m, 2H), 5.17. (s, 2 H), 5.58 (s, 2H), 7.01-7.11 (m, 2H), 7.17-7.21 (m, 1H), 7.24-7.50 (m, 6H), 7.67 (d, J = 7.8 Hz, 1H), 7.75 (d, J = 6.9 Hz, 1H) ; MS m/e 598 (MH+).

Compound 202 Compound 202 was prepared as described for compound 201.

'H NMR (DMSO-d6) 5 1.43-1.50 (m, 2H), 1.60-1.78 (m, 2H), 2. 13 (s, 6H), 3.32-3.41 (m, 4H), 4.36 (t, J = 7.5 Hz, 2H), 4.61-4.68 (m, 2H), 5.17 (s, 2H), 5.43 (s, 2H), 6.99- 7.05 (m, 2H), 7.09-7.26 (m, 3 H), 7.43 (d, J = 8.4 Hz, 2H), 7.57 (t, J = 7.2 Hz, 2H), 7.79 (d, J = 8.1 Hz, 2H), 8.35 (t, J = 5,7 Hz, 1H) ; MS m/e 540 (MH+).

Compound 203 Compound 203 was prepared as described for compound 12.

'H NMR (DMSO-d6) 8 1.25-1.42 (m, 2H), 1.43-1.63 (m, 2H) 3.20-3.40 (m, 2H), 3.62-3.82 (m, 2H), 4. 21-4.39 (m, 2H), 4.72-4.92 (bs, 1H), 5.13 (s, 2H), 5.43 (s, 2H), 6.92-7.10 (m, 2H), 7.10-7.36 (m, 6H), 7. 37-7. 43 (m, 2H), 7.54-7.62 (m, 2H); MS m/e 585 (MH+).

Compound 204 Compound 204 was prepared as described for compound 88 using 2- (3- chloro-propyl)-2-methyl- [1, 3] dioxolane. lH NMR (CDC13) 6 1.18 (s, 3H), 1.55-1.72 (m, 4H), 2.25 (s, 3H), 3.67-3.71 (m, 2H), 3.81-3.84 (m, 2H), 4.33-4.36 (m, 2H), 5.27 (s, 1 H), 5.38 (s, 1 H), 5.42 (s, 2 H), 7.02- 7.09 (m, 3H), 7.25-7.36 (m, 2H), 7.35-7.36 (m, 1H), 7.45-7.47 (m, 1H), 7.80-7.81 (m, 1H) ; MS m/e 432 (MH+).

Compound 205 Compound 205 was prepared by deprotection of compound 204 as described for compound 6 followed by alkylation of the intermediate as described for compound 7.

'H NMR (DMSO-d6) 8 1.86-1.91 (m, 2H), 2.05 (s, 3H), 2.41-2.56 (m, 2H), 2.72-2.87 (m, 6H), 4.30-4.45 (m, 2H), 5.16 (s, 2H), 5.56 (s, 2H), 7.04-7.19 (m, 3H), 7.18-7.21 (m, 1H), 7.23-7.45 (m, 6H), 7.64 (d, J = 7.5 Hz, 1H), 7.75 (d, J = 7.5 Hz, 1H) ; MS m/s 509 (MH+).

Compound 206 Compound 206 was prepared by NaBH4 reduction of compound 205.

'H NMR (DMSO-d6) 8 0.96 (d, J = 6.1 Hz, 3H), 1.28-1.32 (m, 2H), 1.60-1.63 (m, 1H), 1.72-1.75 (m, 1H), 2.86 (s, 3H), 2.96 (s, 3H), 3.50-3.59 (m, 1H), 4.34 (t, J = 7.4 Hz, 2H), 4.41-4.48 (m, 1H), 5.16 (s, 2H), 5.43 (s, 2H), 7.0-7.02 (m, 2H), 7.15-7.18 (m, 2H), 7.22-7.26 (m, 2H), 7.36-7.42 (m, 4H), 7.55 (d, J = 8. 0 Hz, 1H), 7.59 (d, J = 7.9 Hz, 1H) ; MS m/e 511 (MH).

Compound 207 Compound 207 was prepared from compound 85 as described for compound 206. lH NMR (CDC13) â 1. 19 (d, J = 6.18 Hz, 3 H), 1.67-1.78 (m, 1 H), 1.83-1.92 (m, 1 H), 2. 25 (s, 3 H), 2.76 (d, J = 5.6 Hz, 1 H), 3.84-3.87 (m, 1 H), 4.43-4.52 (m, 2 H), 5.22 (s, 1 H), 5.40 (d, J=1. 4Hz, 1 H), 5.46 (d, J = 4. 5 Hz, 2 H), 7.08-7.12 (m, 3 H), 7.28-7.32 (m, 2 H), 7.37-7.40 (m, 1 H), 7. 56-7.59 (m, 1 H), 7.79-7.82 (m, 1 H); MS m/e 377 (MH+).

Compound 208 Compound 208 was prepared as described for compound 6.

'H NMR (DMSO-d6) 8 1.08 (d, J = 6.1 Hz, 3H), 1.77-1.82 (m, 2H), 3.62-3.74 (m, 1H), 4.56 (t, J = 7.1 Hz, 2H), 5.55-5.62 (m, 2H), 6.99-7.08 (m, 3H), 7.19 (d, J = 7.2 Hz, 1H), 7.43-7.53 (m, 2H), 7.69 (d, J = 7.4 Hz, 1H), 7.85 (d, J = 7. 6 Hz, 1H); MS m/e 337 (MH+).

Compound 209 Compound 209 was prepared by alkylation of compound 3.

'H NMR (CDCl3) 8 1.81-1.91 (m, 2H), 2.07-2.22 (m, 2H), 2.25 (s, 3H), 4.44 (t, J = 7.8 Hz, 2H), 5.21 (s, 1H), 5.40 (s, 3H), 7.06-7.10 (m, 3H), 7.27-7.33 (m, 3H), 7.52- 7.62 (m, 1H), 7.80-7.84 (m, 1H) ; MS m/e 415 (MH+).

Compound 210 Compound 210 was prepared as described for compound 6.

'H NMR (CDCl3) 8 1. 76-1.86 (m, 2H), 2. 10-2.27 (m, 2H), 4.41 (t, J = 8.0 Hz, 2H), 5.42 (s, 2H), 7.02-7.09 (m, 3H), 7.29-7.32 (m, 3H), 7.45-7.48 (m, 1H), 7.80-7.84 (m, 1H), 8.48 (s, 1H) ; MS m/e 375 (MH+).

Compound 211

Compound 211 was prepared by alkylation of compound 210 as described for compound 7. tH NMR (CDCl3) å 1. 78-1.89 (m, 2H), 2.09-2.25 (m, 2H), 3.79 (s, 3H), 4.38 (t, J = 8.0 Hz, 2H), 4.67 (s, 2H), 6.87-6.92 (m, 1H), 7.05-7.12 (m, 1H), 7.29-7.32 (m, 3H), 7.47-7.50 (m, 1H), 7.81-7.84 (m, 1H) ; MS m/e 447 (MH+).

Compound 212

Compound 212 was prepared as described for compound 8.

1H NMR (DMSO-d6) 8 1.71-1.82 (m, 2H), 2.24-2.38 (m, 2 H), 4.05 (s, 2H), 4.39 (t, J =7.7 Hz, 2H), 5.37 (s, 2H), 6.90-7.00 (m, 3H), 7.16-7.28 (m, 3H), 7.58 (d, J =7. 8 Hz, 1H), 7.62 (d, J= 7. 5 Hz, 1H) ; MS m/e 433 (MH+).

Compound 213

Compound 213 was prepared according to the same procedure described for compound 106 except that 3-methylbutylbromide was replaced with 1-bromo-4- fluorobutane.

1H NMR (DMSO-d6) S 1.65-1.75 (m, 2H), 1.85-1.90 (m, 2H), 4.32 (t, J = 7.5 Hz, 2H), 4.41 (t, J = 6.0 Hz, 1H), 4.51 (t, J = 6.0 Hz, 1H), 4.71 (d, J = 5.8 Hz, 2H), 5.62 (t, J = 5.8 Hz, 1H), 7.18 (t, J = 7.0 Hz, 1H), 7.23 (t, J = 6.3 Hz, 1H), 7.56-7.60 (m, 2H) ; MS m/e 222 (MH+).

Compound 214 Compound 214 was prepared according to the same procedure described for chloride 107 and was used immediately upon isolation.

Compound 215 Compound 215 was prepared as described for compound 4, followed by deprotection and alkylation as described for compound 7.

'H NMR (DMSO-d6) 8 1.71-1.84 (m, 4 H), 2.15 (s, 3 H), 4.12 (t, J= 3.5,1 H), 4.50- 4.54 (m, 3 H), 5.11 (s, 2 H), 5.65 (s, 2 H), 7.10-7.17 (m, 2 H), 7.34-7.38 (m, 2 H), 7.45-7.50 (m, 2 H), 7.71 (d, J= 4.8,1H), 7.89 (d, J= 4.6,1H) ; MS m/e 399 (MH+).

Compound 216

Compound 216 was prepared as described for compound 215 except 4- bromo-1-fluorobutane was used as the alkylating agent.

'H NMR (DMSO-d6) 8 1.22-1.28 (m, 2H), 1.54-1.85 (m, 8H), 2.54-2.58 (m, 2H), 3.93 (t, J= 4.1,2H), 4.35-4.40 (m, 2H), 5.39 (s, 2 H), 6.98-7.09 (m, 2H), 7.14-7.27 (m, 4H), 7.58 (t, J= 4.9,2H); MS m/e 420 (MH+).

Compound 217 Compound 217 was prepared as described for compound 4.

'H NMR (DMSO-d6) 8 1.13 (t, J = 6. 9 Hz, 3H), 1.80-1.95 (m, 2H), 2.17 (s, 3H), 2.37 (t, J=7. 2Hz, 2H), 4.02 (q, J = 7. 2 Hz, 2H), 4.36 (t, J = 6. 6 Hz, 2 H), 5.19 (s, 1H), 5.39 (s, 1H), 5.42 (s, 1H), 7.06-7.10 (m, 2H), 7.11-7.28 (m, 4H), 7.58-7.71 (m, 2H); MS m/e 418 (MH).

Compound 218

Compound 218 was prepared was described for compound 6.

'H NMR (DMSO-d6) 8 1.15 (t, J = 7.2 Hz, 3H), 1.81-1.98 (m, 2H), 4.02 (q, J = 7.2 Hz, 2H), 4.36 (t, J = 7.5 Hz, 2H), 5.32 (s, 2H), 6.91-7.08 (m, 3H), 7.15-7.30 (m, 3H), 7.58 (d, J=8. 1Hz, 2H) ; MS m/e 378 (MH+).

Compound 219 Compound 219 was prepared as described for compound 4 using 2- chloroethyl thiomethyl ether as the alkylating agent.

1H NMR (CDCl3) # 2. 07 (s, 3H), 2.25 (s, 3H), 2.75 (t, J = 6. 9 Hz, 2 H), 4.62 (t, J = 6.9 Hz, 2H), 5.23 (d, J = 0.5 Hz, 1H), 5.40 (d, J = 1.4 Hz, 1H), 5.48 (s, 2H), 7.05-7.09 (m, 3H), 7.28-7.37 (m, 3H), 7.53-7.57 (m, 1 H), 7.79-7.84 (m, 1H) ; MS m/e 379 (MH+).

Compound 220

Compound 220 was prepared as described for compound 6. lHNMRCDC13) 6 1.61 (s, 3H), 2.09 (s, 3H), 2.74 (t, J = 7. 1 Hz, 2H), 4.59 (t, J = 7. 1 Hz, 2H), 5.47 (s, 2H), 7.04-7.08 (m, 3H), 7.28-7.37 (m, 3H), 7.46-7.50 (m, 1H), 7.79- 7.84 (m, 1H), 8. 65 (bs, 1 H); MS m/e 339 (MH+).

Compound 221 2-Fluoronitrobenzene (35.4 g, 250.9 mmol), 3-(methylthio) propylamine (24.0g, 228.1 mmol) and potassium carbonate (47.3 g, 342 mmol) were stirred in CH3CN (100 mL) at room temperature overnight. After stirring for an additional hour at reflux, the mixture was cooled to room temperature and filtered. The filtrate was evaporated. To the residue in DMF (150 mL), magnesium monoperoxyphthalate hexahydrate (MMPP, 168 g, 340 mmol) was added in several portions with ice-water cooling. The mixture was stirred at room temperature for 3 hours and the solvent was evaporated. The residue was dissolved in CH2C12 and washed with 1 N NaOH, water, brine, dried over MgSO4 and evaporated. The residue was triturated with hot EtOAc to give compound 221 (48.7 g, 75% yield) as an orange solid.

1H NMR (CDCl3)# 2.25-2.35 (m, 2H), 2.97 (s, 3H), 3.17 (t, J = 7.2 Hz, 2H), 3.59 (t, J = 6.9 Hz, 2H), 6.68-6.74 (m, 1H), 6.89 (d, J = 8.1 Hz, 1H), 7.45-7.51 (m, 1H), 8.20 (dd, J = 1. 5,8.7 Hz, 1H); MS m/e 259 (MH+) ; Anal. Calcd for CloHl4N204S : C, 46.50; H, 5.46; N, 10. 84 Found: C, 46.53; H, 5.54; N, 10.90.

Compound 222 To a suspension of compound 221 (48.5 g, 187.8 mmol) in a mixture of CHC13 and MeOH (150 mL, l : 3) was added 10% palladium on carbon (6 g) under nitrogen. The reduction was carried out in a Parr shaker with hydrogen pressure maintained between 40 and 60 psi for 25 minutes. The catalyst was removed by filtration through a pad of Celite and the filtrate was evaporated to give crude 222.

'H NMR (CD30D) 8 2.11-2.21 (m, 2H), 2.98 (s, 3H), 3.28-3. 36 (m, 4H), 6.75 (dt, J = 0.9,7.2 Hz, 1H), 6.85 (d, J = 7.5 Hz, 1H), 7.06-7.12 (m, 2H) ; MS m/e 229 (MH+).

Compound 223

The crude diamine 222 obtained above was stirred at reflux overnight with glycolic acid (15.7 g, 207 mmol) in 6 N HCl (150 mL). The solution was cooled in an ice bath and neutralized with concentrated NH40H solution, extracted with

EtOAc, dried over MgSO4 and evaporated. The residue was purified by chromatography (gradient, EtOAc/hexane, 1: 1 to EtOAc/MeOH, 10: 1) to give a product which crystallized from EtOAc/MeOH to afford 25.7 g (51% yield in two steps) of 223.

1H NMR (CD30D) 8 2.38-2.44 (m, 2H), 2.97 (s, 3H), 3.24 (t, J = 7.6 Hz, 2H), 4.54 (t, J = 7.6 Hz, 2H), 7.27 (t, J = 1. 1,8.1 Hz, 1H), 7.33 (dt, J = 1. 1,8.0 Hz, 1H), 7.62 (d, J = 8. 1 Hz, 1H), 7.64 (dd, J = 1.0,8.0 Hz, 1H) ; MS m/e 269 (MH+).

Compound 224

Compound 224 was prepared according to the same procedure described for compound 6.

'H NMR (CD30D) 8 2.46-2.52 (m, 2H), 3.03 (s, 3H), 3.37 (t, J = 7.1 Hz, 2H), 4.77 (t, J = 7.8 Hz, 2H), 5.31 (s, 2H), 7.68-7.73 (m, 2H), 7.86 (dd, J = 2.8,6.9 Hz, 1H), 8.03 (dd, J = 1. 7,6.1Hz, ! H) ; MS m/e 287 (MH+).

Compound 224a

To a solution of 4-(2-keto-1-benzimidazolinyl) piperidine (3.0 g, 13.8 mmol), triethylamine (2.79 g, 27.6 mmol) and DMAP (17 mg, 0.1 mmol) in CH2Cl2 (50 ml) was added di-tert butyldicarbonate (3.31 g, 15.2 mmol) at 0°C and stirred for 2 h.

The reaction mixture was washed with NaHCO3, dried and evaporated. The residue was purified by flash chromatography using hexanes: EtOAc (2: 1 to 1: 1) as eluant to give 2.68 g (61%) of compound 224a as a white solid.

'H NMR (CD30D) 8 : 1.49 (s, 9H), 1.75-2.02 (m, 2H), 2.29-2.43 (m, 2H), 2.89-2.99 (m, 2H), 4.23-4.29 (m, 2H), 4.37-4.46 (m, 1H), 7.02-7.07 (m, 3H), 7.19-7.22 (m, 1H) ; MS m/e 318 (MH+).

Table 17-Sulfones were prepared as described for compound 7 using chloride 224 and a benzimidazolone such as 224a with Cs2CO3 as base. Compound 225d was prepared from compound 225c as described for compound 6. a a ata 225a CH3 (CDCI3) 6 1.61-1.67 (m, 2H), 1.85-1.91 457 (Mil+) (m, 2H), 2.13-2.19 (m, 2H), 2.83 (s, 3H), 3.05 (t, J = 7.2 Hz, 2H), 3.70 (t, J = 6.2 Hz, 2H), 3.99 (t, J = 7.0 Hz, 2H), 4.57 (t, J = 7.2 Hz, 2'H), 5.48 (s, 2H), 7.01-7.05 (m, 1H), 7.07-7.14 (m, 2H), 7. 32-7. 35 (m, 2H), 7.42-7.43 (m, 1H), 7.55-7.58 (m, 1H), 7.83-7.85 (m, 1H) (DMSO-d6) 8 2.07-2.15 (m, 2H), 2.18 (s, 425 (MH+) 3H), 2.98 (s, 3H), 3.21 (t, J = 7.4 Hz, 2H), 4.50 (t, J = 7. 4 Hz, 2 H), 5.22 (s, 1H), 5.40-5.41 (m, 3H), 7.06-7.09 (m, 2H), 7.16-7.32 (m, 4H), 7.38-7.64 (m, 2H) 225c o (CDCI3) 8 1. 52 (s, 9H), 1. 82-1. 88 (m, 568 (MH+) AO 2H), 2.18-2.38 (m, 4H), 2.85 (s, 3H), ru 8 2. 86-2.94 (m, 2H), 3.04 (t, J = 7.3 Hz, 2H), 4.27-4.38 (m, 2H), 4.40-4.49 (m, 1H), 4.62 (t, J = 7.5 Hz, 2H), 5.49 (s, 2H), 7.07-7.15 (m, 2H), 7.36-7.39 (m, 2H), 7.44-7.49 (m, 1H), 7.63-7.66 (m, 1H), 7.84-7.88 (m, 1H) (CD30D) 8 2.12-2.16 (m, 2H), 2.44-2.48 468 (MH+) (m, 2H), 2.76-2.80 (m, 2H), 3.02 (s, 3H), 3.22-3.28 (m, 2H), 3.32-3.35 (m, 2H), 3.58-3.65 (m, 2H), 4.64-4.69 (m, 1H), 4.83 (t, J = 7.9 Hz, 2H), 5.79 (s, 2H), 7.20-7.28 (m, 2H), 7.35 (d, J = 7. 9 Hz, 1H), 7.49 (d, J= 7. 8 Hz, 1H), 7.65-7.72 (m, 2H), 7.75 (d, J = 8.2 Hz, 1H), 8.05 (d, J=8. 2Hz, 1H) Compound 226

Compound 226 was prepared as described for compound 6.

'H NMR (DMSO-d6) 8 2.03-2.14 (m, 2H), 2.97 (s, 3H), 3.21 (t, J = 8.0 Hz, 2H), 4.48 (t, J = 7.4 Hz, 2H), 5.34 (s, 2H), 6.95-7.02 (m, 3H), 7.16-7.29 (m, 3H), 7.57-7.63 (m, 2H) ; MS m/e 385 (MH+).

Table 18-Compounds were prepared by alkylation of 226 as described for compound 7. # R'H-NMRTOataMS Data 227a F (CDCI3) 6 2.16-2.26 (m, 2 H), 2.90 (s, 3 H), 435 (MH+) F 3.08 (t, J = 7. 3 Hz, 2 H), 4.58 (t, J = 7. 7 Hz, 2 H), 5.45 (s, 2 H), 7.18-7.23 (m, 2 H), 7. 35- 7.45 (m, 4 H), 7.62-7.66 (m, 1 H), 7.81-7.86 (m, 1 H) 227ba ~ OH (CDC13) 6 1.61-1.67 (m, 2 H), 1.85-1.91 (m, 2 457 (MH+) H), 2.13-2.19 (m, 2 H), 2.83 (s, 3 H), 3.05 (t, J =7. 2Hz, 2H), 3.70 (t, J=6. 2Hz, 2H), 3.99 (t, J = 7. 0 Hz, 2 H), 4.57 (t, J = 7. 2 Hz, 2 H), 5.48 (s, 2 H), 7. 01-7.05 (m, I H), 7.07-7.14 (m, 2 H), 7.32-7.35 (m, 2 H), 7.42-7.43 (m, 1 H), 7.55-7.58 (m, 1 H), 7.83-7.85 (m, 1 H) 227ca-v' (DMSO-d6) 8 2.12-2.17 (m, 2 H), 3.00 (s, 3 500CER+) H), 3.22 (t, J=7. 9Hz, 2H), 4.50 (t, J = 8. 0 dz, 2 H), 5.23 (s, 2 H), 5.47 (s, 2 H), 7.01- 7.06 (m, 2 H), 7.13-7.22 (m, 2 H), 7.28-7.31 (m, 2 H), 7.53 (d, J = 8. 2 Hz, 2 H), 7.58-7.65 (m, 2 H), 7.83 (d, J = 8. 2 Hz, 2 H) a, Cs2CO3 was used as base instead ot BTPP.

Compound 228 To a solution of 225b (42 mg, 0.1 mmol) in THF (1 ml) was added 9-BBN (0.5 M in THF) (1.0 ml, 0.5 mmol) at 0°C and the final solution was stirred for 12 h.

The reaction mixture was quenched with 1 M NaOH (2 ml) and 30% H202 (1 ml) and the mixture was stirred for 2 h then extracted with EtOAc. The organic layer was washed with brine, dried, evaporated. The residue was purified by preparative reverse phase HPLC to yield 28 mg (63%) of 228 as a hygroscopic solid.

'H NMR (CD30D) 8 1.54 (d, J = 7.1 Hz, 3H), 2.41-2.47 (m, 2H), 3.00 (s, 3H), 3.31- 3.32 (m, 2H), 3.82-3.86 (m, 1H), 4.14-4.18 (m, 1H), 4.61-4.66 (m, 1H), 4.76 (t, J = 7.6 Hz, 2H), 5.70 (s, 2H), 7.13-7.21 (m, 2H), 7.27 (d, J = 7.7 Hz, 1H), 7.39 (d, J = 8.0 Hz, 1H), 7.53-7.62 (m, 2 H), 7.69 (d, J = 8.0 Hz, 1H), 7.92 (d, J = 8. 3 Hz, 1H); MS m/e 443 (MH+).

Compound 229 Compound 229 was prepared as described for compound 52.

'H NMR (DMSO-d6) 8 2.12-2.17 (m, 2H), 3.00 (s, 3H), 3.24 (t, J = 7.7 Hz, 2H), 4.52 (t, J = 7.4 Hz, 2H), 5.22 (s, 2H), 5.48 (s, 2H), 7.031-7.06 (m, 2H), 7.16-7.22 (m, 2H), 7.26-7.31 (m, 2H), 7.57-7.60 (m, 3H), 7.64 (d, J = 8.0 Hz, 1H), 8. 01 (d, J = 8.3 Hz, 2H); MS m/e 543 (MH+).

Compound 230

Compound 230 was prepared as described compound 4.

H NMR (CDCl3) 6 0.77 (t, J = 7.1 Hz, 3H), 0.83 (t, J = 7.1 Hz, 3H), 0.90-0.98 (m, 1H), 1.20-1.29 (m, 1H), 2.13-2.35 (m, 2H), 2.24 (s, 3H), 3.78-3.94 (m, 2H), 5.19 (s, 1H), 5.36 (d, J = 15.8 Hz, 1H), 5.39 (d,-J = 1.4 Hz, 1H), 5.51 (d, J 15. 7 Hz, 1H), 5.52-5.57 (m, 1H), 7.01-7.09 (m, 3H), 7.21-7.31 (m, 2H), 7.37 (d, J = 7.3 Hz, 1H), 7.44-7.46 (m, 1H), 7.82 (d, J = 7.4 Hz, 1H) ; MS m/e 433 (MH+).

Compound 231 Compound 231 was prepared as described for compound 4.

'HNMR (CDCl3) 8 1.19 (d, J = 7. 1 Hz, 3H), 1.52-1.64 (m, 1H), 2.03-2.15 (m, 1H), 2.25 (s, 3 H), 2.53-2.62 (m, 1H), 3.67 (s, 3H), 4.29-4.50 (m, 2H), 5.21 (s, 1H), 5.39 (d, J = 1. 1 Hz, 1H), 5.34-5.48 (m 2H), 7.04-7.12 (m, 3H), 7.25-7.34 (m, 2H), 7.40- 7.44 (m, 1H), 7.49-7.53 (m, 1H), 7.77-7.83 (m, 1H) ; MS m/e 405 (MH+).

Compound 232 Compound 232 was prepared as described for compound 8.

'HNMR (CD30D) 8 1.15 (d, J= 7.1 Hz, 3 H), 1.50-1.64 (m, 1 H), 1.99-2.11 (m, 1 H), 2.27 (s, 3 H), 2.29-2.43 (m, 1 H), 4.35-4.44 (m, 2 H), 5.29 (s, 1 H), 5.40-5.59 (m, 3 H), 7.04-7.34 (m, 5 H), 7.59 (d, J = 8.2 Hz, 1 H), 7.66 (d, J = 7.5 Hz, 1 H); MS m/e 405 (MH+).

Compound 233 (Scheme III) A solution of 2-fluoronitrobenzene (5.0 g, 35.5 mmol) and 1-amino-4-butanol (3.2 g, 35.5 mmol) in CH3CN (100 mL) and triethylamine (3.80 g, 35.5 mmol) was heated to reflux for 12 h, and evaporated. The residue was dissolved in ethyl acetate and washed with 1N HCI, dried over magnesium sulfate and evaporated to give 7.21 g (97% yield) of compound 233 as a dark orange solid: 'H NMR (DMSO-d6) 8 1.45-1.56 (m, 2H), 1.58-1.69 (m, 2H), 3.35 (t, J = 6.7 Hz, 2H), 3.43 (t, J = 6.4 Hz, 2H), 3.90-4.0 (br, 1H, exchanges with D2O), 6.66 (t, J = 6.0 Hz, 1H) ; 7.04 (d, J = 9.0 Hz, 1H) ;. 7.52 (t, J = 7,2 Hz, 1H) ; 8.04 (d, J = 7.2 Hz, 1H) ; 8.13 (br s, 1H, exchanges with D2O); IR (KBr cm-1) 1350, 1154; MS m/e 211 (MH+) ; Anal. Calcd for C10H14N2O3#0. 28 H20 : C, 55.80; H, 6.82; N, 13.01 Found: C, 55.80; H, 6.62; N, 12.97.

Compound 234

A mixture of nitro compound 233 (5.0 g, 23.8 mmol) and 10% Pd/C (100 mg) in ethanol (50 mL) was hydrogenated at 40 psi for 4 h. The catalyst was removed by filtration and the filtrate was evaporated to give 4.3 g (99% yield) of compound 234 as a dark oil: 1H NMR(DMSO-d6) # 1.47-1.66 (m, 4 H), 2.99 (t, J = 6.6 Hz, 2 H), 3.43 (t, J = 6.6 Hz, 2 H), 4.31-4.5 (br, 4 H, exchange with D20), 6.36-6.42 (m, 2 H) 6.54-6.82 (m, 2 IR (film, cm-') 1055,739; MS rn/e 181 (MH+) ; Anal. Calcd for C10H16N2O#0. 71 H20 : C, 62.23; H, 9.10; N, 14.51 Found: C, 62.23; H, 8.78; N, 14.41.

Compound 235 To a solution of diamine 234 (1.0 g, 6.0 mmol) in methylene chloride (50 mL) at-78 °C was added a solution of an acid chloride which was prepared from the acid 125 (2.05 g, 6.02 mmol) with excess SOC12, followed by addition of triethylamine (0.97 mL, 7.0 mmol). The mixture was stirred at-78°C for 1 hr then at room temperature for 12 h. The solvent was evaporated and the black residue (2.7 g)

was dissolved in acetic acid and heated to reflux for 4h. The solvent was evaporated.

The black residue was purified by chromatography on silica gel and eluted with 3% methanol in methylene chloride to give 2.3 g of a mixture of esters as a yellow oil.

The mixture in methanol (20 mL) was treated with IN sodium hydroxide (10 mL, 10 mmol) and heated to reflux for 1 h, and concentrated under reduced pressure. The precipitate was filtered to give 0.65 g (31% yield) of the sodium salt of compound 235 as a white solid: mp >240°C ; 'HNMR (DMSO-d6) 8 1.47-1.40 (m, 2 H), 1.68-1.60 (m, 2 H), 3.37 (t, J = 6.3Hz, 2 H), 4.35 (t, J = 7.5Hz, 2 H), 5.15 (s, 2 H), 5.43 (s, 2 H), 7.03-6.99 (m, 2 H), 7.38-7.15 (m, 3 H), 7.35 (d, J = 8. 1 Hz, 2 H), 7.57 (d, J=7. 2Hz, 1 H), 7.87 (d, J = 8. 1 Hz, 2 IR (KBr cm') 1701,750; MS m/e 471 (MH+) ; HRMS m/e (M+) calcd for C27H26N404 : 470.1954, found 470.2039.

Compound 236

Compound 236 was prepared as described for compound 235 using compound 169.

'H NMR (DMSO-d6) 8 1.23 (t, J = 7.1 Hz, 3H), 1.45-1.55 (m, 4H), 19.2 (s, 3H), 3.50-3.61 (m, 2H), 3.81-3.90 (m, 4H), 4.25-4.35 (m, 1H), 5.35 (s, 2H), 6.97-7.15 (m, 2EI), 7.15-7.25 (m, 4H), 7.53-7.60 (m, 2H) ; 1VIS m/e 406 (MH+) Compound 237 Compound 237 was prepared from compound 236 as described for compound 8.

'H NMR (DMSO-d6) 8 1.23 (t, J = 7.1 Hz, 3H), 1.30-1.45 (m, 2H), 3.20-3.40 (m, 2H), 1.45-1. 60. (m, 2H), 3.20-3.40 (m, 2H), 3.92 (q, J = 7.2 Hz, 2H), 4.33 (t, J = 7.3 Hz, 2 H), 4.46 (t, J = 5.0 Hz, 1H), 5.36 (s, 2H), 6.97-7.12 (m, 2H), 7.12-7.25 (m, 4H), 7.52-7.59 (m, 2H) ; MS m/e 364 (MH+).

Compound 238

Compound 238 was prepared as described for compound 235 before the hydrolysis step.

'HNMR (DMSO-d6) 8 1.22 (t, J = 6.2 Hz, 3H), 1.53-1.78 (m, 4H), 1.97 (s, 3H), 3.99 (t, J = 6.0 Hz, 2H), 4.17 (q, J = 7.2 Hz, 2H), 4.35 (t, J = 6.6 Hz, 2H), 4.79 (s, 2H), 5.40 (s, 2H), 7.04-7.07 (m, 2H), 7.08-7.31 (m, 4H), 7.56 (t, J = 8.1 Hz, 2H); MS m/e 464 (MH+).

Compound 239 Compound 239 was prepared from 1-aminopropanol and 2- fluoronitrobenzene as previously described for compound 233. lH NMR (CDCl3) 6 1.97-2.02 (m, 2H), 3.46-3.50 (m, 2H), 3.84-3.87 (m, 2H), 6.64 (t, J = 8.0 Hz, 1H), 6.89 (d, J=8. 6 Hz, 1H), 7.43 (t, J = 7.05, 1H), 8.17 (d, J = 7.2 Hz, 1H) ; MS m/e 166 (MH+).

Table 20-Compounds were prepared as described for compound 235. The acetates were removed by mild acid hydroylsis.

z ata a a 240a OAc4 St (DMSO-d6) 1. 23 (t, J=7. 3 Hz, 3 H), 392 (MH+) 1.90-2.10 (m, 2 H), 1.97 (s, 3 H), 3.92 (q, J = 7. 2 Hz, 2 H), 3.99-4.06 (m, 2 H), 4.42 (t, J = 7. 3 Hz, 2 H), 5.37 (s, 2 H), 6.98-7.08 (m, 2 H), 7.14-7.25 (m, 4 H), 7.53-7.60 (m, 2H) 240b Bb pt DMSO-d6 : 1.24 (t, J = 7. 0 Hz, 3H),-350 (MH+) 1.76-1.82 (m, 2H), 3.39-3.42 (m, 2H), 3.92 (q, J = 7. 0 Hz, 2H), 4.40 (t, J=7. 1Hz, 2H), 4.71 (t, J = 4. 8 Hz, 1H), 5.39 (s, 2H), 7.01-7.14 (m, 2H), 7.15-7.26 (m, 4H), 7.55 (t, J = 8. 6 Hz, 2H) "HOc-OAc CHOt DMSO-d6 : 1.21 (t, J=7. 1 Hz, 3H), 450 1.89-2.02 (m, 2H), 1.98 (s, 3H), 4.10 (MH+) (t, J = 6. 1 Hz, 2H), 4.16 (q, J =7. 1 Hz, 2H), 4.15 (t, J = 7. 4 Hz, 2H), 4.79 (q, J = 7. 1 Hz, 2H), 5.40 (s, 2H), 7.01-7.08 (m, 2H), 7.15-7.28 (m, 4H), 7.55 (d, J = 7. 7 Hz, 1H), 7.60 (d, J = 7. 5 Hz, 1 H) 240d H CH2CO2H (DMSO-d6) 1.59-1.65 (m, 2 H), 380 (MH+) 3.35 (t, J = 6. 2 Hz, 2 H), 4.12 (s, 2 H), 4.33 (t, 7.2 Hz, 2 H), 5.35-5.38 (m, 2 H), 6.89-7.01 (m, 3 H), 7.11- 7.25 (m, 3 H), 7.52 (d, J = 7. 4 Hz, 1 H), 7.58 (d, J=7. 3 Hz, lH) 240e'""H-----o-- (DMSO-d6) 1. 80-1. 94 (m, 2 H), 3. 42 47U (MH+) (t, J = 7. 2 Hz, 2 H), 3.82 (s, 3 H), 4. 51 (t, J=6. 8Hz, 2H), 5.20 (s, 2 H), 5.60 (s, 2 H), 7.01-7.07 (m, 2 H), 7.12-7.16 (m, 1 H), 7.23-7.26 (m, 1 H), 7.25-7.40 (m, 2 H), 7.48 (d, J = 7.3 Hz, 2 H), 7.63 (d, J = 7. 3 Hz, 1 H), 7.73 (d, J = 7. 9 Hz, 1 H), 7.93 (d, J=7. 3 Hz, 2 H) 240f H o (DMSO-d6) 1.84 (m, Z H), 3. 31-3. 45 456 (MH+) HOH (m, 2 H), 4.35-4.45 (m, 2 H), 4.78- 4. 91 (m, 1 H), 5.10 (s, 2 H), 5.46 (s, 2 H), 6.92-7.09 (m, 2 H), 7.10-7.38 (m, 6 H), 7.56 (d, J = 7. 8 Hz, 2 H), 7.81 (d, J=7. 5Hz, 2H) a, acetate is isolated by silica gel chromatography prior to nyoroiysis ; b, hydrolysis carried out as described for compound 4; c, cyclization step carried using TFA instead of AcOH.

Compound 241

Compound 241 was prepared by addition of ethanolamine to 2- fluoronitrobenzene as previously described for compound 233.

'H NMR (CDCl3) 8 3.39-3.43 (m, 2H), 3.63-3.69 (m, 2H), 6.68 (t, J = 7.2 Hz, 1H), 7.07 (d, J = 8.7 Hz, 1H), 7.53 (t, J = 6.9 Hz, 1H), 8.06 (d, 8.7 Hz, 1H), 8.23-8.35 (m, 1H) ; MS m/e 196 (MH+).

Compound 242 To a solution of 2-(2-nitro-phenylamino)-ethanol (2 g, 10.97 mmol) in CH2Cl2 (70 ml) were added triethylamine (2.77 g, 27.37 mmol) and acetic anhydride (1.68 g, 16.45 mmol). The mixture was refluxed overnight. The next day it was diluted with CH2Cl2 and washed with 1N HCI, and brine. The organic layer was dried over Na2SO4 and concentrated to give 2.40 g (98% yield) of compound 242 as yellow solid.

Compound 243

Compound 243 was prepared as described for compound 170 using acetic acid 2- (2-amino-phenylamino)-ethyl ester and (3-ethoxycarbonylmethyl-2-oxo-2,3- dihydro-benzoimidazol-l-yl)-acetic acid as described for compound 170.

'H NMR (DMSO-d6) 8 1.22 (t, J= 7.1,3H), 1.90 (s, 3H), 4.16 (q, J = 7.1,2H), 4.35 (t, J = 5. 0,2H), 4.68 (t, J = 5. 1, H), 4.79 (s, 2H), 5.45 (s, 2H), 7.03-7.10 (m, 2H), 7.15-7.27 (m, 4H), 7.55-7.62 (m, 2H) ; MS m/e 437 (MH+).

Compound 244 To a solution of compound 243 (570 mg, 1.30 mmol) in EtOH (40 ml) was added 3 drops of H2SO4 and the solution was refluxed overnight. The solvent was evaporated. The residue was diluted with EtOAc and washed with saturated aqueous sodium bicarbonate solution. The organic layer was dried over Na2SO4, and evaporated to give 473 mg (92% yield) of compound 244 as a white solid.

'H NMR (DMSO-d6) 8 1.22 (t, J= 7.1,3 H), 3.71 (t, J = 4.8,2 H), 4.17 (q, J = 7.1,2 H), 4.46 (t, J=4. 9,2 H), 4.78 (s, 2 H), 5.11 (s, 1 H), 5.45 (s, 2 H), 7.00-7. 08 (m, 2 H), 7.12-7.24 (m, 4 H), 7.53-7.57 (m, 2 H) ; MS m/e 395 (MH) Compound 245

Compound 245 was prepared as described for compound 236.

'H NMR (DMSO-d6) 8 1.24 (t, J = 7.2 Hz, 3H), 1.87 (s, 3H), 3.93 (t, J = 7.6 Hz, 2H), 4.32 (t, J = 4. 8 Hz, 2 H), 4.69 (t, J = 5. 1 Hz, 2H), 5.42 (s, 2H), 7.03-7.18 (m, 2H), 7.19-7.31 (m, 2 H), 7.55-7.61 (m, 2H) ; MS m/e 378 (MH :).

Compound 246 Compound 246 was prepared as described for compound 240b.

'H NMR (DMSO-d6) 8 1.25 (t, J = 6.6 Hz, 3H), 3.60-3.70 (m, 2H), 3.93 (q, J = 7.2 Hz, 2H), 4.47 (t, J = 5.1 Hz, 2H), 5.09 (t, J = 5.1 Hz, 1H), 5.42 (s, 2H), 7.00-7.11 (m, 2H), 7.11-7.27 (m, 4H), 7.52-7.57 (m, 2H); MS m/e 336 (MH+).

Compound 247

Compound 247 was prepared as previously described for compound 234 using 2-methoxyethylamine.

IHNMR (CDCI3) å 3.18 (dt, 5.7,6.0 Hz, 2H), 3.21 (s, 3H), 3.53 (t, J = 5.7 Hz, 2H), 4. 32-4. 40 (m, 1H), 4.40-4.49 (s, 2H), 6.42-6.56 (m, 4H); MS m/e 166 (MH+).

Compound 248 Compound 248 was prepared as described for compound 235 using N- (2- methoxy-ethyl)-benzene-1,2-diamine and (3-ethoxycarbonylmethyl-2-oxo-2, 3- dihydro-benzoimidazol-1-yl)-acetic acid.

'H NMR (DMSO-d6) 8 1.23 (t, J = 6.9 Hz, 3H), 3.19 (s, 3H), 3.28-3.72 (m, 2H), 4.17 (q, J = 7.2 Hz, 2H), 4.51-4.62 (m, 2H), 4.79 (s, 2H), 5.42 (s, 2H), 7.01-7.06 (m, 2H), 7.19-7.25 (m, 4H), 7.56 (d, J = 8.1 Hz, 2H); MS m/e 408 (MH+).

Compound 249

To a 0°C solution of compound 246 (2.38 g'0. 71 mmol) in CH2C12 (100 ml) was added Et3N (0.12 ml, 0.9 mmol) followed by methanesulfonyl chloride (0.085 ml, 0.75 mmol). The mixture was warmed to room temperature, stirred for 12 h then poured into IN HCI. The organic layer was separated and dried over MgSO and concentrated to give 0.196 mg (67%) of compound 249 as a white solid.

'NMR (DMSO-d6) 8 1.25 (t, J = 7.2 Hz, 3H), 3.01 (s, 3H), 3.82-3.99 (m, 2H), 4.54 (t, J = 5. 4 Hz, 2H), 4.76 (m, J = 5. 4 Hz, 2H), 5.41 (s, 2H), 7.02-7.12 (m, 3H), 7.15- 7.34 (m, 3H), 7.51-7.65 (m, 2H); MS (m/e) 414 (MH+) Compound 250 To a slurry of NaH (38 mg, 0.95 mml) in DMF (5 ml) was added pyrazine (63 mg, 0.92 mmol) followed by a solution of mesylate prepared above. The mixture was stirred at 23°C for 12 h. The solvent was removed and the residue dissolved in EtOAc and washed with water. The organic layers was dried over MgS04 concentrated and the residue chromatographed (3 % MeOH/CH2Cl2 as eluant to give compound 250 as a clear glass (120 mg, 85% yield).

'H NMR (DMSO-d6) 8 1.23 (t, J = 6.9Hz, 3H), 3.92 (q, J = 7.2Hz, 2H), 4.55 (t, J = 5.3Hz, 2H), 4.80 (t, J = 4.8Hz, 2H), 4.94 (s, 2H), 6.17-6.19 (m, 1H), 7.00-7.25 (m, 6H), 7.27-7.58 (m, 3H) ; MS (m/e) 386 (MH+).

Compound 251 Compound 251 was prepared from compound 244 as described for compound 249 above.

'HNMR (DMSO-d6) 8 1.18-1.23 (m, 3H), 3.06 (s, 3H), 4.11-4.20 (m, 3H), 4.56-4.59 (m, 2H), 4.59-4.84 (m, 3H), 5.52 (s, 2H), 7.05-7.11 (m, 2H), 7.16-7.35 (m, 4H), 7.62 (d, J= 7.4Hz, 1H), 7.72 (d, J= 8.0,1H); MS (m/e) 473 (MH+) Compound 252 Compound 252 was prepared from compound 251 as described for compound 250 above.

'H NMR (DMSO-d6) 8 1.19 (t, J = 7.1,3H), 4. 14 (q, J = 7.1,2H), 4.50-4.54 (m, 2H), 4.75-4.79 (m, 3H), 5.00 (s, 2H), 6.17 (s, 1H), 7.00-7.07 (m, 2H), 7.10-7.20 (m, 3H), 7.34-7.41 (m, 2H), 7.46-7.53 (m, 2H) ; MS (m/e) 445 (MH+).

Compound 253

Compound 253 was prepared as described for compound 252 using tetrazole instead of pyrazole.

'H NMR (DMSO-d6) 8 1.21 (t, J= 7. 1hZ,3H), 2.09 (s, 2H), 4.15 (q, J= 7.1Hz, 2H), 4.77 (s, 2H), 5.00-5.03 (m, 1H), 5.19-5.22 (m, 3H), 7.04-7.07 (m, 1H), 7.13-7.16 (m, 1H), 7.18-7.23 (m, 2H), 7.51-7.65 (m, 3H), 8.91 (s, 1H) ; MS (m/e) 447 (MH+).

Compound 254 Compound 254 was prepared by transesterification using NaOMe as previously described for compound 131.

'H NMR (DMSO-d6) 8 3.34 (bs, 2H), 4.08 (s, 2H), 4.86 (bs, 2H), 5.26 (s, 2H), 6.93-7.02 (m, 3H), 7.14-7.24 (m, 3H), 7.24-7.31 (m, 1H), 7.61-7.63 (m, 1H), 9.33 (s, 1H) ; MS (m/e) 431 (MH+).

Compound 255 (Scheme III)

A mixture of 6-amino-3, 4-difluoroaniline (1.2g, 8.33 mmol, from Specs), acid 182 (2.13 g, 8.33 mmol), and EEDQ (2.06 g, 8.33 mmol) were stirred in THF (40 mL) at reflux for 12 h. The mixture was evaporated and the residue was purified by chromatography on silica gel to give 850 mg of compound 255: 1H NMR (CD3OD) # 2.26 (s, 3H), 5.28 (s, 1H), 5.37 (s, 2H), 5.49 (s, 1H), 7.03-7.24 (m, 4H), 7.37-7.43 (m, 2H) ; IR (KBr, cm-') 1686,1655,1491,1471,1405,1346,1157,883,859,634,600; MS m/e 339 (MH+) ; Anal. Calcd for C18H14F2N4O : C, 63.53; H, 4.15; N, 16.46 Found: C, 63.28; H, 4.37; N, 16.21.

Compound 256 Compound 256 was prepared from 255 and 4-bromobutyronitrile in the same manner as compound 4.

'H NMR (CDCl3) 8 1.60 (s, 3H), 1.92-2.02 (m, 2H), 2.25 (s, 3H), 2.47 (t, J = 7.3 Hz, 2H), 4.44-4.49 (m, 2H), 5.22 (s, 1H), 5.35 (s, 2H), 5.42 (s, 1H), 7.11-7.13 (m, 3H), 7.17 (dd, J = 6.7,9.5 Hz, 1H), 7.49-7.53 (m, 1H), 7.58 (dd, J = 7.2,10.2 Hz, 1H) ; IR (KBr, cm-1) 1686,1487,1471,1401,1155,753; MS m/e 408 (MH+) ; Anal. Calcd for C22HIgF2N5O. 0. 25 H2O C, 64.14; H, 4.77; N, 17.00 Found: C, 64.03; H, 4.97; N, 17.18.

Compound 257 Compound 257 was prepared in the same manner as compound 52.

'H NMR (CD30D) 8 2.13-2.23 (m, 2H), 2.21 (s, 3H), 2.94 (t, J = 7.6 Hz, 2H), 4.44 (t, J = 7.6 Hz, 2H), 5.37 (s, 1H), 5.43 (s, 2H), 5.45 (s, 1H), 7.06-7.23 (m, 4H), 7.41- 7.52 (m, 2H) ; IR (KBr, cm-1) 3411,1698,1681,1654,1487,1470,1407,1157,753; MS m/e 451 (MH+).

Compound 258 Compound 258 was prepared as described for compound 105.

'H NMR (DMSO-d6) 8 2.07-2.13 (m, 2H), 2.63 (t, J = 7.4Hz, 2H), 3.20 (s, 3H), 4.42 (t, J= 7.4Hz, 2H), 5.24 (s, 2H), 5.46 (s, 2H), 7.19 (t, J = 7.5Hz, 1H), 7.27 (t, J = 7.5Hz, 1H), 7.50-7.54 (m, 1H), 7.56 (d, J = 7.8Hz, 1H), 7.61 (d, J = 8.3Hz, 2H), 7.92 (d, J = 8. 3Hz, 2H); MS m/e 535 (MH+).

Compound 259

Compound 259 was prepared described for compound 105.

'H NMR (DMSO-d6) 8 2.07-2.15 (m, 2H), 2.64 (t, J = 7.5Hz, 2H), 3.20 (s, 3H), 4.42 (t, J = 7.5Hz, 2H), 5.23 (s, 2H), 5.45 (s, 2H), 7.15 (td, J = 2.5,9.3Hz, 1H), 7.40 (dd, 2.4,9.8Hz, 1H), 7.45-7.53 (m, 2H), 7.60 (d, J = 8. 3Hz, 2H), 7.63-7.65 (m, 1H), 7.92 (d, J=8.3Hz, 2H) ; MS m/e 553 (MH+).

Compound 260

Compound 260 was prepared as described for compound 266.

Compounds 261 and 262

A mixture of 3-fluorobenzenediamine (6.3 g, 50.0 mmol) and ethyl acetoacetate (6.50 g, 50.0 mmol) and DBU (0.76 g, 5.0 mmol) in p-xylene (50 mL) was heated to reflux for 2 h. Water formed during reaction was removed with a Dean- Stark trap. After cooling, the solvent was removed in vacuo. The residue was purified by flash chromatography (gradient, hexanes: EtOAc 4: 1 to 1: 1) to give 0.76 mg (8%) of 5-fluoro-1-isopropenyl-1, 3-dihydro-benzoimidazol-2-one, 261 and 1.10 (11%) of 6-fluoro-1-isopropenyl-1, 3-dihydro-benzoimidazol-2-one 262 as white solids.

261: 5-Fluoro-1-isopropenyl-1, 3-dihydro-benzoimidazol-2-one 'H NMR (CDCl3) 5 2.24 (s, 3H), 5.24 (d, J = 0.4 Hz, 1H), 5.41-5.43 (m, 1H), 6.77- 6.81 (m, 1H), 6.89-6.91 (m, 1H), 6.98-7.00 (m, 1H) ; MS m/e 193 (MH+) ; 262: 6-Fluoro-l-isopropenyl-1, 3-dihydro-benzoimidazol-2-one 'H NMR (CDC13) 8 2.24 (s, 3H), 5.24 (s, 1H), 5.42 (d, J = 1.2 Hz, 1H), 6.78-6.85 (m, 2H), 7.03-7.06 (m, 1H) ; MS m/e 193 (MH+).

Compound 263 A solution of 2, 5-difluoronitrobenzene (15.4 g, 96.8 mmol), 4- aminobutyronitrile (7.4 g, 88 mmol) and diisopropylethylamine (23 ml, 132 mmol) in DMF (250 ml) was stirred at room temperature for 32 hours. After filtration, the solvent was evaporated and the orange solid was recrystallized from MeOH (250 ml) to afford 263 (14 g, 65% yield) as orange crystals.

'H NMR (CDC13) 8 2.06-2.12 (m, 2H), 2.54 (t, J = 7.0 Hz, 2H), 3.48-3.53 (m, 2H), 6.85-6.88 (m, 1H), 7.27-7.31 (m, 1H), 7.89-7.92 (m, 1H); MS m/e 224 (MH+).

Compound 264

To a suspension of nitrile 263 (10.8 g, 48.4 mmol) and potassium carbonate (20.1 g, 145 mmol) in CH3CN (200 ml) was added benzyloxyacetyl chloride (7.64 ml, 48.4 mmol) dropwise. After stirring at room temperature for 12 hours, the mixture was diluted with EtOAc (500 ml) and filtered. The filtrate was washed with 1 N HCl, brine, dried over MgSO4 and evaporated. The residue was purified by flash chromatography (gradient, EtOAc/hexane, 1: 2 to 1: 1) to yield 264 (7.5 g, 42% yield) as a viscous pale yellow oil.

'H NMR (CDC13) 81. 86-1.98 (m, 2H), 2.38-2.51 (m, 2H), 3.34-3.39 (m, 1H), 3.80- 3.87 (m, 2H), 4.06-4.14 (m, 1H), 4.40-4.48 (m, 2H), 7.18-7.19 (m, 1H), 7.26-7.40 (m, 5H), 7.72-7.74 (m, 1H) ; MS m/e 394 (MH+).

Compound 265 In a flask equipped with a mechanical stirrer, a suspension of compound 264 (6.40 g, 17.25 mmol), iron powder (2.89 g, 51.8 mmol) and ammonium chloride (4.61 g, 86.2 mmol) in a mixture of MeOH and H20 (200 ml, 1: 1) was stirred at reflux for 4 hours. The mixture was filtered through a pad of Celite and washed with MeOH. The filtrate was evaporated and the residue was taken up in EtOAc (500 ml), washed with brine, dried over MgS04, and evaporated. To the residue was added CH3CN (100 ml) and acetic acid (1 ml), and the mixture was stirred at reflux for 4

hours. The solvent was evaporated and the residue was purified by flash chromatography (gradient, EtOAc/hexane, 1: 2 to 2: 1) to give 265 (4.42 g, 75% yield) as a viscous oil which solidified upon standing.

'H NMR (CD3) 8 2.15-2.20 (m, 2H), 2.31 (t, J = 7.0 Hz, 2H), 4.35 (t, J = 7.2 Hz, 2H), 4.62 (s, 2H), 4.83 (s, 2H), 7.07-7.11 (m, 1H), 7.29-7.38 (m, 6H), 7.43-7.46 (dd, J = 2. 4,9.2 Hz, 1 H) ; MS m/e 324 (MH+).

Compound 266 To a solution of 265 (3.23 g, 10 mmol) in CH2C12 (100 ml) at 0 °C was added boron tribromide (2.84 ml, 30 mmol). After stirring for 1 hour, the mixture was quenched with saturated NaHC03 solution with ice bath cooling and extracted with EtOAc. The combined extracts were dried over MgSO4 and evaporated. The residue was purified by flash chromatography (gradient, CH2Cl2/MeOH, 40: 1 to 20: 1) to give 266 (1.68 g, 72% yield) as an off-white solid.

'H NMR (CDCl3) 8 2.25-2.30 (m, 2H), 2.43 (t, J = 7.1 Hz, 2H), 4.41 (t, J = 7.1 Hz, 2H), 4.85 (s, 2H), 7.04-7.081 (m, 1H), 7.29-7.34 (m, 2H); MS m/e 234 (MH+).

Compound 267

Compound 267 was prepared according to the same procedure described for compound 6.

'H NMR (CD30D) 8 2.30-2.36 (m, 2H), 2.70 (t, J = 7.2 Hz, 2H), 4.67 (t, J = 7.6 Hz, 2H), 5.30 (s, 2H), 7.49-7.54 (dt, J = 2.4,9.2 Hz, 1H), 7.62-7.64 (dd, J = 2.4,8.0 Hz, 1H), 8. 01-8.04 (dd, J = 2.0,9.2 Hz, 1H) ; MS m/e 252 (MH+).

Compound 268 Compound 268 was prepared as described for compound 106 using intermediates 267 and 261.

1H NMR (CDCl3) #1. 90-1.95 (m, 2H), 2.16 (s, 3H), 2.37-2.40 (m, 2H), 4.43 (t, J = 7.6Hz, 2H), 5.12 (s, 1H), 5.26 (s, 2H), 5.33 (s, 1H), 6.71-6.75 (m, 1H), 6.92-6.95 (m, 1H), 7.00-7.04 (m, 1H), 7.22-7.40 (m, 2H), 7.40-7.42 (m, 1H).

Compound 269

Prepared from compound 268 as described for compound 6.

'H NMR (DMSO-d6) 8 2.09-2.16 (m, 2H), 2.67 (t, J = 7.5Hz, 2H), 4.51 (t, J = 7.5Hz, 2H), 5.50 (s, 2H), 6.84-6.88 (m, 1H), 7.01-7.04 (m, 1H), 7.21-7.23 (m, 1H), 7.30- 7.34 (m, 1H), 7.49-7.52 (m, 1H), 7.83-7.86 (m, 1H) ; MS m/e 368 (MH+).

Compound 270 Compound 270 was prepared as described for compound 106 using 262 and 267.

'H NMR (CDC13) 6 0. 95 (d, J = 6.6 Hz, 6H), 1.42-1.46 (m, 2H), 1.67-1.71 (m, 1H), 2.23 (s, 3H), 4.29-4.32 (m, 2H), 5.19 (s, 1H), 5.34 (s, 2H), 5.39 (s, 1H), 6.75-6.85 (m, 2H), 7.02-7.07 (m, 1H), 7.21-7.24 (m, 1H), 7.36-7.46 (m, 2H); MS m/e 411 (MH+).

Compound 271

Compound 271 was prepared from compound 270 as described for compound 115.

'H NMR (CDCl3) 8 0.95 (d, J = 6.6 Hz, 6H), 1.41-1.45 (m, 2H), 1.53 (d, J = 7.0 Hz, 6H), 1.66-1.72 (m, 1H), 4.28-4.31 (m, 2H), 4.70-4.74 (m, 1H), 5.32 (s, 2H), 6.72- 6.76 (m, 1H), 6.85-6.87 (m, 1H), 7.02-7.06 (m, 1H), 7.20-7.23 (m, 1H), 7.34-7.36 (m, 1H), 7.43-7.46 (m, 1H) ; MS m/e 411 (MH+).

Compound 272 Compound 272 was prepared as described for compound 115.

'H NMR (DMSO-d6) 8 1.45 (d, J = 5.2Hz, 6H), 3.21-3.33 (m, 2H), 4.51-4.71 (m, 2H), 4.81-5.10 (m, 4H), 5.41 (s, 2H), 6.91-7.15 (m, 1H), 7.21-7.51 (m, 3H), 7.52- 7.62 (m, 1H), 9.30 (s, 1H) ; MS m/e 456 (MH+).

Compound 273

Compound 273 was prepared by addition of 3-methyl-butylamine to 3-chloro- 4-nitro benzonitrile as described for compound 233.

'H NMR (CD3) 6 1. 01 (d, J = 6.5 Hz, 6H), 1.63-1.70 (m, 2H), 1.74-1.83 (m, 1H), 3.34-3.41 (m, 2H), 6.93 (d, J = 9.0 Hz, 1H), 7.62 (dd, J = 1.9,8.9 Hz, 1H), 8.35-8.40 (m, 1H), 8.53 (d, J = 2.0 Hz, 1H) ; MS m/e 321 (M+NH4+).

Calcd for C12H15N3O2 : C 61.69; H 6.48; N 18.01; Found: C 61.75; H 6.39; N 17.94.

Compound 274 To a mixture of compound 273 (10.8 g, 48.4 mmol) and K2CO3 (20.1 g, 145 mmol) in CH3CN (200 ml) was added benzyloxyacetic chloride and stirred for 12 h. Diluted with EtOAc, filtered. The filtrate was washed with NaHCO3 and brine, dried, evaporated. The residue was recrystallized from MeOH to yield 7.5 g (42%) of compound 274 as a pale yellow solid.

'H NMR (CDC13) 8 0.94 (d, J = 6.6 Hz, 6H), 1.58 (q, J = 6.8 Hz, 2H), 1.66-1.77 (m, 1H), 2.26 (s, 3H), 3.18 (t, J = 7.3 Hz, 2H), 4.73 (s, 2H), 6.76-6.78 (m, 1H), 7.46-7.53 (m, 3H); MS m/e 315 (MH+).

Anal. Calcd for N302 C: 63.35; H 6.98; N 13.85.

Found: C, 63.37; H 6.87; N 13.72.

Compound 274a

A mixture of compound 274 (6.4 g, 17.2 mmol), iron powder (2.89 g, 51.8 mmol) and ammonium chloride (4.61 g, 86.2 mmol) in MeOH (100 ml) and H20 (100 ml) was heated to reflux for 4 h. The reaction mixture was filtered while hot through celite and the aqueous layer extracted with EtOAc. The organic layer was washed with brine, dried and evaporated. The residue was dissolved in CH3CN (100 ml) and acetic acid (1 ml) and heated to reflux 4 h. The solvent was removed and the residue purified by flash chromatography eluting with hexanes-EtOAc (2: 1 to 1: 2) to yield 4.17 g (75%) of compound 274a as a viscous oil.

1H NMR (CDC13) 8 1.86-1.98 (m, 2 H), 2.38-2.51 (m, 2 H), 3.34-3.39 (m, 1 H), 3.80- 3.87 (m, 2 H), 4.06-4.14 (m, 1 H), 4.38-4.66 (m, 2 H), 7.18-7.19 (m, 1 H), 7.26-7.40 (m, 6 H), 7.72-7.74 (m, 1 H) ; MS m/e 372 (MH+).

Compound 275 To a solution of compound 274a (3.23 g, 10 mmol) in CH2C12 at 0°C was added BBr3 (7.50 g, 30 mmol) and the reaction mixture stirred for 1 h. The reaction mixture was quenched with aqueous NaHCO3 and extraced with EtOAc. The organic layer was washed with brine, dried and evaporated. The residue was purified by flash chromatography eluting with CH2Cl2-MeOH (40: 1 to 20: 1) to yield 1.68 g (72%) of compound 275 as an off-white solid.

'H NMR (CDC13) 2.25-2.31 (m, 2H), 2.43 (t, J = 7.1 Hz, 2H), 4.41 (t, J = 7.1 Hz, 2H), 4.85 (s, 2H), 6.09 (b, 1H), 7.04-7.08 (m, 1H), 7.29-7.34 (m, 2H) MS m/e 234 (MH+).

Compound 276

Compound 276 was prepared as described for compound 3.

'H NMR (DMSO-d6) 8 2.18 (s, 3H), 5.21 (s, 1H), 5.35 (s, 2H), 5.42 (d, J = 1. 3Hz, 1H), 7.02-7.13 (m, 3H), 7.17-7.20 (m, 1H), 7.55-7.71 (m, 2H), 8.12 (bs, 1H), 13.08 (bs, 1EI) ; MS m/e 329 (MH+).

Compound 277 Compound 277 was prepared as described for compound 4.

'H NMR (CDCl3) 8 0.96 (d, J = 6.6 Hz, 6H), 1.41-1.49 (m, 2H), 1.67-1.76 (m, 1H), 2.23 (s, 3H), 4.43 (t, J = 8.1 Hz, 2H), 5.20 (s, 1H), 5.39 (s, J = 1. 3 Hz, 1H), 5.50 (s, 2H), 7.09-7.10 (m, 3H), 7.43 (d, J = 8.5 Hz, 1H), 7.55-7.61 (m, 2H), 8.19 (s, 1H) ; MS m/e 400 (MH+).

Compound 278

Compound 278 was prepared as described for compound 6.

'H NMR (CD30D) 8 1.21 (d, J = 6. 6 Hzj 6H), 1.63-1.66 (m, 2H), 1.91-2.05 (m, 1H), 4.45 (t, J = 8. 3 Hz, 2H), 5.70 (s, 2H), 7.28-7.39 (m, 4H), 7.88-7.90 (m, 2H), 8.29 (s, 1H) ; MS m/e 360 (MH+).

Compound 279 Compound 279 was prepared as described for compound 52.

'H NMR (DMSO-d6) 8 0.92 (d, J = 6.6 Hz, 6H), 1.35-1.43 (m, 2H), 1.63-1.72 (m, 1H), 4.35 (t, J = 8.0 Hz, 2H), 5.37 (s, 2H), 6.91-7.03 (m, 3H), 7.12-7.15 (m, 1H), 7.75 (d, J=8. 5 Hz, 1H), 7.95 (dd, J = 1.6,8.5 Hz, 1H), 8.26 (d, J =1. 2 Hz, 1H), 11.11 (s, 1H) ; MS m/e 403 (MH+).

Compound 280

Compound 280 was prepared as described for compound 7 using tert- butylbromoacetate.

IH NMR (CD3) 8 0.97 (d, J = 6.6 Hz, 6H), 1.45-1.57 (m, 2H), 1.48 (s, 9H), 1.68- 1.77 (m, 1H), 4.34 (t, J = 8.3 Hz, 2H), 5.43 (s, 2H), 6.86-6.89 (m, 1H), 7.04-7.12 (m, 2H), 7.36-7.39 (m, 2H), 7.54 (dd, J=1. 2,8.4 Hz, 1H), 8.13 (s, 1H) ; MS m/e 474 (MH+).

Compound 281 Compound 281 was prepared as described for 6.

'H NMR (CDCl3) 8 2.07-2.14 (m, 2H), 4.43 (t, J=6.1Hz, 2H), 4.55 (t, J = 7.6Hz, 2H), 5.41 (s, 2H), 7.05-7.14 (m, 3H), 7.38-7.45 (m, 2H), 7.58 (dd, J = 1. 4,8.4Hz, 1H), 8.00 (s, 1H), 8.15 (d, J = 5.4Hz, 1H) ; MS m/e 347 (MH+).

Compound 282

4-chloro-3-nitroacetophenone was treated with 3-methylbutyl amine to give 1- [4- (3-methyl-butylamino)-3-nitro-phenyl]-ethanone, compound 282.

1H NMR (CDCl3) # 0.99 (d, J = 6.6 Hz, 6H), 1.37-1.67 (m, 2H), 1.72-1.83 (m, 1H), 2.55 (s, 3H), 3.36-3.42 (m, 2H), 6.90 (d, J = 9. 3 Hz, 1H), 8.07 (dq, J = 0. 6,9.3 Hz, 1H), 8.39-8.44 (s, 1H), 8.79 (d, J = 2Hz, 1H) ; MS m/e 250 (MH+).

Compound 283 1- [4- (3-methyl-butylamino)-3-nitro-phenyl]-ethanone was reduced with catalytic hydrogenation as previously described for compound 164.

'H NMR (CDCl3) d 0.97 (d, J = 6.6 Hz, 6H), 1.58 (q, J =7. 2 Hz, 2H), 1.73-1.78 (m, 1H), 2.50 (s, 3H), 3.20 (t, J=7. 5 Hz, 2H), 6.58 (d, J = 8.1 Hz, 1H), 7.39 (d, J = 1. 8 Hz, 1H), 7.52 (dd, J = 1. 8,8.2 Hz, 1H) ; MS m/e 220 (MH+).

Compound 284 1- [3-Amino-4- (3-methyl-butylamino)-phenyl]-ethanone was coupled with compound 182 to give the final product using EEDQ as shown in Scheme IV.

1H NMR (CDCl3) # 0.96 (d, J = 6.6 Hz, 6H), 1.42-1.50 (m, 2H), 1.65-1.76 (m, 1H), 2.69 (s, 3H), 4.35-4.40 (m, 2H), 5.22 (s, 1H), 5.40 (d, J= 1.4 Hz, 1H), 5.43 (s, 2H), 7.05-7.12 (m, 3H), 7.36 (d, J = 8.6 Hz, 1H), 7.45-7.48 (m, 1H), 7.99 (dd, J = 1.5,8.6 Hz, 1H), 8.43 (s, 1H) ; MS m/e 417 (MH+).

Compound 285 Compound 285 was prepared as previously described for compound 6.

1H NMR (DMSO-d6) # 0.92 (d, J = 6.6 Hz, 6H), 1.36-1.44 (m, 2H), 1.62-1.70 (m, 1H), 2.61 (s, 3H), 4.34 (t, J = 8.1 Hz, 2H), 5.37 (s, 2H), 6.91-7.03 (m, 3H), 7.10-7.14 (m, 1H), 7.61 (d, J= 8.6 Hz, 1H), 7.86 (dd, J= 1.6,8.5 Hz, 1H), 8.29 (d, J = 1.0 Hz, 1H), 11.09 (s, 1H) ; MS m/e 377 (MH+).

Compound 286

Compound 286 was alkylated with methyl iodide with sodium hydride as base as described for compound 7.

'H NMR (CDCl3) 8 0.96 (d, J = 6.6 Hz, 6H), 1.34-1.42 (m, 2H), 1.66-1.75 (m, 1H), 2.68 (s, 3H), 3.47 (s, 3H), 4.31-4.37 (m, 2H), 5.43 (s, 2H), 6.92-7.14 (m, 3H), 7.35 (d, J = 8.6 Hz, 1H), 7.38-7.41 (m, 1H), 7.98 (dd, J = 1.5,8.6 Hz, 1H), 8.42 (d, J = 1.3 Hz, 1H) ; MS m/e 391 (MH+).

Compound 287 Compound 287 was prepared using the procedure of J. Davoll, J. Chem. Soc.

1960, p 308) using 2-amino-4, 5-difluoroaniline.

'HNMR (DMSO-d6) 8 2.21 (s, 3H), 5.20 (s, 1H), 5.36 (s, 1H), 7.03-7.12 (m, 2H).

(5,6-Difluoro-3-isopropyl-2-oxo-2,3-dihydro-benzoimidazol -1-yl)-acetic acid

Compound 287 was alkylated with methyl bromo acetate as described for compound 181. The isopropenyl group was reduced as described for compound 155 and the ester hydrolyzed as described for compound 182.

'H NMR CDCl3 : 1.52 (d, J = 7.0 Hz, 6H), 4.61 (s, 2H), 4.60-4.71 (m, 1H), 6.79-6.85 (m, 1H), 6.99-7.04 (m, 1H).

Compound 288 Compound 288 was prepared using the procedure shown in Scheme IV.

1H NMR (DMSO-d6) # 0.93 (d, J = 6.6 Hz, 6H), 1.52-1.57 (m, 2H), 1.64-1.69 (m, 1H), 3.19 (s, 3H), 4.32 (t, J = 7. 8 Hz, 2H), 5.23 (s, 2H), 5.43 (s, 2H), 7.18 (t, J = 7.6 Hz, 1H), 7.25 (t, J = 7.3 Hz, 1H), 7.46-7.50 (m, 1H), 7.53 (d, J = 7. 9 Hz, 1H), 7.58- 7.62 (m, 4H), 7.91 (d, J = 8.2 Hz, 2H); MS m/e 538 (MH+).

Compound 289

Prepared from compound 107 and 2-oxo-6-trifluoromethyl-2,3-dihydro- benzoimidazole-l-carboxylic acid tert-butyl ester [mixture of 5 and 6 regioisomers 2- oxo-trifluoromethyl-2, 3-dihydro-benzoimidazole (Meanwell et al. J Org. Chem.

1995,60,1565-1582) were separated by column chromatography and alkylated with methyl bromoacetate] as previously described for compound 108.

1H NMR (CDCl3) # 0.91 (d, J = 6.6 Hz, 6H), 1.36-1.43 (m, 2H), 1.61 (s, 9H), 1.64- 1. 73 (m, 1H), 4.23-4.29 (m, 2H), 5.32 (s, 2H), 7.19-7.25 (m, 4H), 7.31-7.34 (m, 1H), 7.70-7.76 (m, 2H), 7.82 (d, J = 8. 5 Hz, 1H) ; MS m/e 503 (MH+).

Compound 290 The t-butylcarbamate was removed as previously described for compound 6.

'H NMR (CD30D) 8 0.96 (d, J = 6. 6 Hz, 6H), 1. 39-1. 47 (m, 2H), 1.67-1.75 (m, 1H), 4.35 (t, J = 8.3 Hz, 2H), 5.44 (s, 2H), 7.19-7.38 (m, 4H), 7.45-7.47 (m, 2H), 7.46 (d, J = 7. 3 Hz, 1H) ; MS m/e 403 (MH+).

Compound 291

Compound 291 was prepared in a similar manner as for compound 290 above.

'H NMR (DMSO-d6) 8 0.92 (d, J = 6.6 Hz, 6H), 1.39-1.46 (m, 2H), 1.61-1.70 (m, 1H), 4.29 (t, J = 8.1 Hz, 2H), 5.37 (s, 2H), 7.05-7.25 (m, 3H), 7.29-7.36 (m, 2H), 7.49 (d, J = 7.7 Hz, 1H), 7.56 (d, J = 7.5 Hz, 1H), 11.44 (s, 1H).

(5,6-Difluoro-3-isopropyl-2-oxo-2, 3-dihydro-benzoimidazol-1-yl)-acetic acid (5,6-Difluoro-3-isopropyl-2-oxo-2,3-dihydro-benzoimidazol-1- yl)-acetic acid was prepared by hydrogenation of (5,6-Difluoro-3-isopropenyl-2-oxo-2,3-dihydro- benzoimidazol-l-yl)-acetic acid as described for compound 115 then alkylated as described for compound 181 and hydrolysis to the acid as described for 182.

'H NMR (CDCl3) 8 1.52 (d, J = 7.0 Hz, 6H), 4.61 (s, 2H), 4.60-4.71 (m, 1H), 6.79- 6.85 (m, 1H), 6.99-7.04 (m, 1H).

BIOLOGICAL ACTIVITY The antiviral activity of these compounds against respiratory syncytial virus was determined in HEp-2 (ATCC CCL 23) cells that were seeded in 96 well microtiter plates at 1. 5x104 cells/100 IlL/well in DMEM (Dulbecco's Modified Eagle's Medium) supplemented with penicillin, streptomycin, glutamine, and 10%

fetal bovine serum. The cells were incubated overnight at 37 °C, the culture medium was removed, and cells were infected (100 gL volume in medium containing 2% fetal bovine serum) with respiratory syncytial virus Long strain at 5000 plaque forming units/mL. The compounds, 100 uL at appropriate dilution, were added to the cells 1 hour post infection. After incubation for 4 days at 37 °C, the plates were stained with MTT solution (3- [4, 5-dimethlythiazol-2-yl]-2,5- diphenyltetrazolium bromide) and incubated for 4 hours at 37 °C. The media was aspirated from the cells and 100 uL/well of acidified isopropanol (per liter: 900 mL isopropanol, 100 mL Triton X100, and 4 mL conc. HCl) was added. Plates were incubated for 15 minutes at room temperature with shaking, and an optical density (OD 540) reading at 540 nanometer (nm) was obtained. The optical density reading is proportional to the number of viable cells. The increase in the number of viable cells reflects the protective, antiviral activity of the compound. Assays comparing MTT staining in uninfected cells containing compound with uninfected cells in the absence of compound provide a measure of cellular toxicity. The control compound in this assay is Ribavirin which exhibits 100% cell protection at 2.5 pg/mL (corresponding to 10.2 uM).

The antiviral activity of compounds, designated as EC50, is presented as a concentration that produces 50% cell protection in the assay. The compounds disclosed in this application show antiviral activity with Echo. s between 50 uM and 0.001 1M. Ribavirin has an EC50 of 3 uM in this assay.