GLUCOSIDE DERIVATIVES AND USES THEREOF AS SGLT INHIBITORS

The invention relates to compounds which have an inhibitory effect on the sodium- dependent glucose co-transporter SGLT and their use in therapy.

This disclosure relates to a series of novel glycoside derivatives, their polymorphs, stereoisomers, pro-drugs, solvates, pharmaceutically acceptable salts and formulations thereof. The disclosure also relates to the process for preparation of substituted glycoside derivatives along with their sodium-D-glucose co-transporter (SGLT) inhibition effects, which are beneficial for the prophylaxis, management, treatment, control of progression, or adjunct treatment of diseases and/or medical conditions where the inhibition of SGLT would be beneficial, such as diabetes (including Type-I and Type-ll), obesity, dyslipidemia, insulin resistance, and other metabolic syndrome, and/or diabetes- related complications including retinopathy, nephropathy, neuropathy, ischemic heart disease, arteriosclerosis, β-cell dysfunction, and as therapeutic and/or prophylactic agents for obesity.

Diabetes mellitus is a metabolic disorder characterized by recurrent or persistent hyperglycemia (high blood glucose) and other signs, as distinct from a single disease or condition. Glucose level abnormalities can result in serious long-term complications, which include cardiovascular disease, chronic renal failure, retinal damage, nerve damage (of several kinds), microvascular damage and obesity.

Type 1 diabetes, also known as Insulin Dependent Diabetes Mellitus (IDDM), is characterized by loss of the insulin-producing β-cells of the islets of Langerhans of the pancreas leading to a deficiency of insulin. Type-2 diabetes previously known as adult- onset diabetes, maturity-onset diabetes, or Non-Insulin Dependent Diabetes Mellitus (NIDDM) - is due to a combination of increased hepatic glucose output, defective insulin secretion, and insulin resistance or reduced insulin sensitivity (defective responsiveness of tissues to insulin).

Chronic hyperglycemia can also lead to onset or progression of glucose toxicity characterized by decrease in insulin secretion from β-cell, insulin sensitivity; as a result diabetes mellitus is self-exacerbated [Diabetes Care, 1990, 13, 610]

Chronic elevation of blood glucose level also leads to damage of blood vessels. In diabetes, the resultant problems are grouped under "microvascular disease" (due to damage of small blood vessels) and "macrovascular disease" (due to damage of the arteries). Examples of microvascular disease include diabetic retinopathy, neuropathy and nephropathy, while examples of macrovascular disease include coronary artery disease, stroke, peripheral vascular disease, and diabetic myonecrosis.

Diabetic retinopathy, characterized by the growth of weakened blood vessels in the retina as well as macular edema (swelling of the macula), can lead to severe vision loss or blindness. Retinal damage (from microangiopathy) makes it the most common cause of blindness among non-elderly adults in the US. Diabetic neuropathy is characterized by compromised nerve function in the lower extremities. When combined with damaged blood vessels, diabetic neuropathy can lead to diabetic foot. Other forms of diabetic neuropathy may present as mononeuritis or autonomic neuropathy. Diabetic nephropathy is characterized by damage to the kidney, which can lead to chronic renal failure, eventually requiring dialysis. Diabetes mellitus is the most common cause of adult kidney failure worldwide. A high glycemic diet (i.e., a diet that consists of meals that give high postprandial blood sugar) is known to be one of the causative factors contributing to the development of obesity.

Type 2 diabetes is characterized by insulin resistance and/or inadequate insulin secretion in response to elevated glucose level. Therapies for type 2 diabetes are targeted towards increasing insulin sensitivity (such as TZDs), hepatic glucose utilization (such as biguanides), directly modifying insulin levels (such as insulin, insulin analogs, and insulin secretagogues), increasing incretin hormone action (such as exenatide and sitagliptin), or inhibiting glucose absorption from the diet (such as alpha glucosidase inhibitors) [Nature 2001 , 414, 821-827].

Glucose is unable to diffuse across the cell membrane and requires transport proteins. The transport of glucose into epithelial cells is mediated by a secondary active cotransport system, the sodium-D-glucose co-transporter (SGLT), driven by a sodium- gradient generated by the Na+/K+-ATPase. Glucose accumulated in the epithelial cell is further transported into the blood across the membrane by facilitated diffusion through GLUT transporters [Kidney International 2007 ^' , 72, S27-S35].

SGLT belongs to the sodium/glucose co-transporter family SLCA5. Two different SGLT isoforms, SGLT1 and SGLT2, have been identified to mediate renal tubular glucose reabsorption in humans [Curr. Opinon in Investigational Drugs (2007): 8(4), 285-292 and references cited herein]. Both of them are characterized by their different substrate 52822

affinity. Although both of them show 59% homology in their amino acid sequence, they are functionally different. SGLT1 transports glucose as well as galactose, and is expressed both in the kidney and in the intestine, while SGLT2 is found exclusively in the S1 and S2 segments of the renal proximal tubule. As a consequence, glucose filtered in the glomerulus is reabsorbed into the renal proximal tubular epithelial cells by SGLT2, a low-affinity/high-capacity system, residing on the surface of epithelial cell lining in S1 and S2 tubular segments. Much smaller amounts of glucose are recovered by SGLT1 , as a high-affinity/low-capacity system, on the more distal segment of the proximal tubule. In healthy human, more than 99% of plasma glucose that is filtered in the kidney glomerulus is reabsorbed, resulting in less than 1 % of the total filtered glucose being excreted in urine. It is estimated that 90% of total renal glucose absorption is facilitated by SGLT2; remaining 10 % is likely mediated by SGLT1 [J. Parenter. Enteral Nutr. 2004, 28, 364-371].

SGLT2 was cloned as a candidate sodium glucose co-transporter, and its tissue distribution, substrate specificity, and affinities are reportedly very similar to those of the low-affinity sodium glucose co-transporter in the renal proximal tubule. A drug with a mode of action of SGLT2 inhibition will be a novel and complementary approach to existing classes of medication for diabetes and its associated diseases to meet the patient's needs for both blood glucose control, while preserving insulin secretion. In addition, SGLT2 inhibitors which lead to loss of excess glucose thereby excess calorie may have additional potential for the treatment of obesity.

Indeed small molecule SGLT2 inhibitors have been discovered and anti-diabetic therapeutic potential of such molecules have been reported in literature [T-1095 (Diabetes, 1999, 48, 1794-1800, Dapagliflozin (Diabetes, 2008, 57, 1723-1729)]. Various O-aryl and O-heteroaryl glycosides have been reported as SGLT-2 inhibitors in patent publications such as: WO 01/74834, WO 03/020737, US 04/0018998, WO 01/68660, WO 01/16147, WO 04/099230, WO 05/011592, US 06/0293252, WO 05/021566.

Various glucopyranosyl-substituted aromatic and heteroaromatic compounds have also been reported as SGLT-2 inhibitors in patent publications such as: WO 01/27128, WO 52822

04/080990, US 06/0025349, WO 05/085265, WO 05/085237, WO 06/054629, WO 06/011502.

SGLT1 is predominantly found in the intestine and plays a major role in the absorption of D-glucose and D-galactose. Therefore, SGLT1 inhibitors have the potential to act both in the kidney as well as the intestine to reduce calorie intake and hyperglycemia.

WO2004/018491 discloses pyrazole derivatives which are SGLT1 inhibitors.

Glucopyranosyl-substituted aromatic or heteroaromatic compounds where, in general, the sugar moiety has been modified at C4, C5, or C6 positions of pyranose have been published (US 06/0009400, US 06/0019948, US 06/0035841 , US 06/0074031 , US 08/0027014, WO 08/016132).

For the purposes of this invention inhibition of SGLT means inhibitions exclusively of SGLT2, inhibitions exclusively of SGLT1 or inhibition of both SGLT1 and SGLT2.

Thus, as a first embodiment, the invention provides a compound of formula I:

wherein

Rings A and B are independently C ₆ -ioaryl, C ₃ _ ₇ cycloalkyl, heteroaryl or heterocyclic;

L ₁ is -(CH ₂ ) _n O(CH ₂ ) _m -, -S(O)p-, -N(R ³ )-, -(CH ₂ ),,-;

L ₂ is -(CH ₂ ) _n O(CH ₂ ) _m -, -S(O) _P -, -N(R ³ )-, -Si(R ¹ J(R")-, -(C(R ¹ J(R-J) _n -, -(CH ₂ ) _n C(O)(CH ₂ ) _m - -

(CH ₂ ) _n C(O)NR ³ (CH ₂ ) _m -, -(CH ₂ ) _n NR ³ C(O)(CH ₂ ) _m -, - C ₂ ^ alkenyl-, -C(O) C ₂ _ ₆ alkenyl-, -

N(R ³ )C(O)N(R ³ )-, -N(R ³ )SO ₂ -, -SO ₂ N(R ³ )-, provided that L ₂ is not -O- Or -S(O) ₂ - when L ₁ is -0-CH ₂ - or -0-CH ₂ CH ₂ -;

V is halogen, -OR ^{1 b} or hydrogen; m, for each occurrence, is independently 0, or an integer from 1 -4; n, for each occurrence, is independently 0, or an integer from 1 -4; p, for each occurrence, is independently 0, or an integer from 1-2;

R' and R", for each occurrence, are independently hydrogen, halogen, C _h alky!, C ₁ .

₆ perhaloalkyl, or taken together form a cyclic ring which may optionally have heteroatoms selected from O, N or S;

R ¹ , R ^1a and R ^1b are independently selected from hydrogen, C _h alky!, d^oaryl-d^alkyl, -

C(O) C ₆ -i ₀ aryl or -C(O)Ci -ealkyl;

R ² and R ^2a , for each occurrence, are independently halogen, hydroxy, d^hydroxyalkyl, cyano, -NR ⁴ R ⁵ , -CH ₂ NR ⁴ R ⁵ , d_ ₆ alkyl, C ₃ - ₇ cycloalkyl, d^ alkoxy, C ₃ - ₇ cycloalkoxy, -

S(O) _P R ³ , -S(O) ₂ NR ⁴ R ⁵ , -OS(O) ₂ R ³ , -C(O)R ³ , -C(O)OR ³ , -CH ₂ C(O)OR ³ , -C(O)NR ⁴ R ⁵ , -

CH ₂ C(O)NR ⁴ R ⁵ , -NR ³ C(O)NR ⁴ R ⁵ , -NR ³ C(O)OR ³ , d_ ₆ haloalkyl, C^ perhaloalkyl, C ₃ -

₇ cycloalkyld_ ₄ alkyl, C ₆ -ioaryl, C ₆ -ioaryloxy, heterocyclyl, heterocyclyld.

₄ alkyl, heteroaryld^alkyl, heteroaryl, heteroaryloxy, or heterocycloxy;

R ³ is hydrogen, Ci- ₆ alkyl, C ₃ _ ₇ cycloalkyl, C ₆ -ioaryl, heteroaryl, or heterocyclyl; q, for each occurrence, is independently O, or an integer from 1-3;

X is [C(R ⁶ XR ⁷ )],; t is an integer from 1-3;

Y is NR ⁸ R ⁹ ; with the proviso that: when V = -0R ^{1 b} , L ₁ is bond, L ₂ is -CH ₂ -, rings A and B are phenyl, and X is C=O, then Y is not an unsubstituted pyrrolidine, unsubstituted piperidine or unsubstituted morpholine rings or a pyrrolidine, piperidine or morpholine that is substituted with halogen, haloalkyl, perhaloalkyl, alkoxy, haloalkoxy, perhaloalkoy or cyano; when V = -0R ^{1 b} , L ₁ is bond, L ₂ is -CH ₂ -, and rings A and B are phenyl, then -X-Y is not carbamoyl, N-methylcarbamoly, N,N-dimethylcarbamoyl, N-benzylcarbamoyl, or aminomethyl;

R ⁶ and R ⁷ , for each occurrence, are independently hydrogen or d_ ₆ alkyl, or R ⁶ and R ⁷ form an oxo group and t=1 , or when R ⁶ and R ⁷ are C-^alkyl on the same carbon they can be taken together to form a spiro which may contain N, S or O atoms; R ⁴ and R ⁵ , for each occurrence, are independently hydrogen, d_ ₆ alkyl, C ₃ _ ₇ cycloalkyl, C ₃ . ₇ cycloalkylC ₁ _ ₄ alkyl, d^oaryld^alkyl, d _M oaryl, heteroaryl, heteroaryld_ ₄ alkyl, heterocyclyl, heterocyclylC ₁ - ₄ alkyl or

R ⁴ and R ⁵ taken together may form a monocyclic or a bicyclic ring system which may be saturated, partially saturated or aromatic and may optionally have additional 52822

heteroatoms selected from O, N or S, the said ring system may further be optionally substituted; and

R ⁸ and R ⁹ are independently hydrogen, C^alkyl, C ₃ - ₇ cycloalkyl, Ca-rcycloalkylC^alkyl,

C ₆ -ioarylCi- ₄ alkyl, C ₆ -ioaryl, heteroaryl, heterocyclyl, heterocyclylCi-

₄ alkyl or

R ⁸ and R ⁹ along with the nitrogen to which they are bound form a monocyclic or a bicyclic ring system which may be saturated, partially saturated or aromatic and may optionally have additional heteroatoms selected from O, N and S, the said ring system may further be optionally substituted; or a stereoisomer, enantiomer or tautomer thereof, a pharmaceutically acceptable salt thereof, or a prodrug thereof.

For purposes of interpreting this specification, the following definitions will apply and whenever appropriate, terms used in the singular will also include the plural and vice versa.

As used herein, the term "alkyl" refers to a fully saturated branched or unbranched hydrocarbon moiety. Preferably the alkyl comprises 1 to 20 carbon atoms, more preferably 1 to 16 carbon atoms, 1 to 10 carbon atoms, 1 to 6 carbon atoms, or 1 to 4 carbon atoms. Representative examples of alkyl include, but are not limited to, methyl, ethyl, n-propyl, /so-propyl, n-butyl, sec-butyl, /so-butyl, tert-butyl, n-pentyl, isopentyl, neopentyl, n-hexyl, 3-methylhexyl, 2,2- dimethylpentyl, 2,3-dimethylpentyl, n-heptyl, n- octyl, n-nonyl, or n-decyl.

"Alkylene" refers to a straight or branched divalent hydrocarbon chain consisting solely of carbon and hydrogen atoms, having from one to twelve carbon atoms, preferably one to 6 carbon atoms, and linking the rest of the molecule to a radical group. Examples of alkylene groups include methylene, ethylene, propylene, n-butylene, and the like. The alkylene is attached to the rest of the molecule through a single bond and to the radical group through a single bond. The points of attachment of the alkylene to the rest of the molecule and to the radical group can be through one carbon or any two carbons within the chain. In one embodiment, an alkylene group may be optionally substituted by one or more of the following groups: C ₁ - ₄ alkyl, trihaloC^alkyl, halogen, or hydroxyl. 52822

As used herein, the term "haloalkyl" refers to an alkyl, as defined herein, that is substituted by one or more halo groups as defined herein. Preferably the haloalkyl can be monohaloalkyl, dihaloalkyl or polyhaloalkyl including perhaloalkyl. A monohaloalkyl can have one iodo, bromo, chloro or fluoro substituent. Dihaloalky and polyhaloalkyl groups can be substituted with two or more of the same halo atoms or a combination of different halo groups. Preferably, a polyhaloalkyl is substituted with up to 12, 10, 8, 6, 4, 3, or 2 halo groups. Non-limiting examples of haloalkyl include fluoromethyl, difluoromethyl, trifluoromethyl, chloromethyl, dichloromethyl, trichloromethyl, pentafluoroethyl, heptafluoropropyl, difluorochloromethyl, dichlorofluoromethyl, difluoroethyl, difluoropropyl, dichloroethyl and dichloropropyl. A perhaloalkyl refers to an alkyl having all hydrogen atoms replaced with halo atoms.

"Halogen" or "halo" may be fluoro, chloro, bromo or iodo.

The term "alkenyl" refers to a monovalent hydrocarbon having at least one carbon- carbon double bond. The term "C ₂ -C ₆ alkenyl" refers to a monovalent hydrocarbon having two to six carbon atoms and comprising at least one carbon-carbon double bond.

The term "alkynyl" refers to a monovalent hydrocarbon having at least one carbon- carbon triple bond. The term "C ₂ -C ₆ -alkynyl" refers to a monovalent hydrocarbon having two to six carbon atoms and comprising at least one carbon-carbon triple bond.

As used herein, the term "alkoxy" refers to alkyl-O-, wherein alkyl is defined herein above. Representative examples of alkoxy include, but are not limited to, methoxy, ethoxy, propoxy, 2-propoxy, butoxy, terf-butoxy, pentyloxy, hexyloxy, cyclopropyloxy-, cyclohexyloxy- and the like. Preferably, alkoxy groups have about 1-6, more preferably about 1-4 carbons.

Alkyl, alkenyl, alkynyl, and alkoxy groups, containing the requisite number of carbon atoms, can be unbranched or branched. The requisite number of carbon may be represented as Ci- ₆ , C1-4, etc.

The term "aryl" refers to monocyclic or bicyclic aromatic hydrocarbon groups having 6-10 carbon atoms in the ring portion. Non-limiting examples include phenyl and naphthyl, each of which may optionally be substituted by 1 -4 substituents, such as Ci_ ₆ alkyl, trifluoromethyl, C ₃ _ ₇ cycloalkyl, halogen, hydroxy, d_ ₆ alkoxy, acyl, C ₁ _ ₆ alkyl-C(O)-O-, C ₆ - ₁₀ aryl-O-, heteroaryl-O-, amino, thiol, d_ ₆ alkyl-S-, C ₆ -ioaryl-S-, nitro, cyano, carboxy, Ci- ₆ alkyl-O-C(O)-, carbamoyl, Ci- ₆ alkyl-S(O)-, sulfonyl, sulfonamido, or heterocyclyl.

The term "aryl" also refers to a bicyclic group in which a monocyclic aryl ring is fused to one or more or heterocyclyl rings or cycloalkyl rings, where the radical or point of attachment is on the aryl ring. Nonlimiting examples include tetrahydronaphthylene, indane, benzoxazine, and chroman.

As used herein, the term "acyl" refers to a group R-C(O)-, wherein R in the acyl residue is d_ ₆ alkyl, or d_ ₆ alkoxy, or C ₆ -ioaryl, or heteroaryl. Also preferably, one or more carbons in the acyl residue may be replaced by nitrogen, oxygen or sulfur as long as the point of attachment to the parent remains at the carbonyl. Examples of acyl include but are not limited to, acetyl, benzoyl, propionyl, isobutyryl, t- butoxycarbonyl, benzyloxycarbonyl and the like. Lower acyl refers to acyl containing one to four carbons.

As used herein, the term "carbamoyl" refers to H ₂ NC(O)-, (Ci_ ₆ alkyl) ₂ NC(O)-, C ₆ _ ₁₀ aryl-NHC(O)-, C ₁ _ ₆ alkyl(C ₆ _ ₁₀ aryl)-NC(O)-, heteroaryl-NHC(O)-, C ₁ . ₆ alkyl(heteroaryl)-NC(O)-, C ₆ -i ₀ aryl- Ci- ₆ alkyl-NHC(O)-, or Ci-6alkyl(C ₆ -i ₀ aryl- NC(O)-.

As used herein, the term "sulfonyl" refers to R-SO ₂ -, wherein R is hydrogen, d_ ₆ alkyl, C ₆ -ioaryl, hereoaryl, C ₆ -ioaryl- d^alkyl, heteroaryl- d_ ₆ alkyl, d_ ₆ alkoxy, C ₆ -ioaryloxy, C ₃ - ₇ cycloalkyl, or heterocyclyl.

As used herein, the term "sulfonamido" refers to d_ ₆ alkyl-S(O) ₂ -NH-, C ₆ -ioaryl-S(0) ₂ -NH- , C ₆ -ioaryl- d_ ₆ alkyl-S(0) ₂ -NH-, heteroaryl-S(O) ₂ -NH-, heteroaryl- d_ ₆ alkyl-S(O) ₂ -NH-, Ci_ ₆ alkyl-S(O) ₂ -N(Ci- ₆ alkyl)-, C ₆ -ioaryl-S(0) ₂ -N(Ci- ₆ alkyl)-, C ₆ -i ₀ aryl- Ci-6alkyl-S(O) ₂ -N(Ci- ₆ alkyl)-, heteroaryl-S(O) ₂ -N(d- ₆ alkyl)-, or heteroaryl- Ci- ₆ alkyl-S(O) ₂ -N(d-6alkyl)-.

As used herein, the term "sulfamoyl" refers to (R) ₂ NSO ₂ -, wherein R, for each occurrence is independently hydrogen, d_ ₆ alkyl, C ₆ -ioaryl, hereoaryl, C ₆ -ioaryl- d_ ₆ alkyl, heteroaryl- d-ealkyl, d_ ₆ alkoxy, C ₆ -ioaryloxy, C ₃ _ ₇ cycloalkyl, or heterocyclyl. 52822

As used herein, the term "heterocyclyl" or "heterocyclo" refers to an optionally substituted, saturated or unsaturated non-aromatic ring or ring system, e.g., which is a 4- , 5-, 6-, or 7-membered monocyclic, 7-, 8-, 9-, 10-, 11-, or 12-membered bicyclic or 10-, 11-, 12-, 13-, 14- or 15-membered tricyclic ring system and contains at least one heteroatom selected from O, S and N, where the N and S can also optionally be oxidized to various oxidation states. The heterocyclic group can be attached at a heteroatom or a carbon atom. The heterocyclyl can include fused or bridged rings as well as spirocyclic rings. Examples of heterocycles include dihydrofuranyl, [1 ,3]dioxolane, 1 , 4-dioxane, 1 ,4-dithiane, piperazinyl, 1 ,3-dioxolane, imidazolidinyl, imidazolinyl, pyrrolidine, dihydropyran, oxathiolane, dithiolane, l,3-dioxane, 1 ,3-dithianyl, oxathianyl, thiomorpholinyl, oxiranyl, aziridinyl, oxetanyl, azetidinyl, tetrahydrofuranyl, pyrrolidinyl, tetrahydropyranyl, piperidinyl, morpholinyl, piperazinyl, azepinyl, oxapinyl, oxazepinyl and diazepinyl.

In one embodiment, a heterocyclyl may be substituted with 1 , 2 or 3 substituents selected from the groups consisting of the following:

(a) d_ ₆ alkyl;

(b) hydroxy (or protected hydroxy);

(c) halo;

(d) oxo, i.e., =0;

(e) amino (i.e. NH ₂ ), Ci- ₆ alkylamino or di-(Ci- ₆ alkyl)amino;

(f) Ci- ₆ alkoxy;

(g) C ₃ - ₇ cycloalkyl; (h) carboxyl;

(i) heterocyclooxy, wherein heterocyclooxy denotes a heterocyclic group bonded through an oxygen bridge;

G) C ₁ _ ₆ alkyl-O-C(O)-;

(k) mercapto;

(I) nitro;

(m) cyano;

(n) sulfamoyl or sulfonamido;

(P) C ₁ _ ₆ alkyl-C(O)-O-; 52822

(q) C ₆ -i ₀ aryl-C(O)-O-;

(r) C ₆ -ioaryl-S— ;

(S) C ₆ -i ₀ aryloxy;

(t) Ci- ₆ alkyl-S— ;

(U) formyl, i.e., HC(O)-;

(V) carbamoyl;

(W) C ₆ -ioaryl- d-ealkyl-; and

(X) C ₆ -ioaryl substituted with C _h alky!, C ₃ -7cycloalkyl, d-ealkoxy, hydroxy, amino, C ₁ _ ₆ alkyl-C(O)-NI-l-, d-ealkylamino, di-( C ₁ _ ₆ alkyl)amino or halogen.

As used herein, the term "heterocyclylalkyl" is a heterocyclyl as defined above which is attached to another moiety through an alkylene group, e.g. morpholine-CH ₂ -.

As used herein, the term "cycloalkyl" refers to saturated or partially unsaturated (but not aromatic) monocyclic, bicyclic or tricyclic hydrocarbon groups of 3-12 carbon atoms, preferably 3-9, or 3-7 carbon atoms, each of which can be optionally substituted by one, or two, or three, or more substituents, such as d-ealkyl, halo, oxo, hydroxy, d-ealkoxy, d_ ₆ alkyl-C(O)~, carbamoyl, d_ ₆ alkyl-NH~, (d_ ₆ alkyl) ₂ N~, thiol, d_ ₆ alkyl-S~, nitro, cyano, carboxy, d_ ₆ alkyl-O-C(O)-, sulfonyl, sulfonamido, sulfamoyl, or heterocyclyl. Exemplary monocyclic hydrocarbon groups include, but are not limited to, cyclopropyl, cyclobutyl, cyclopentyl, cyclopentenyl, cyclohexyl or cyclohexenyl. Exemplary bicyclic hydrocarbon groups include bornyl, decahydronaphthyl, bicyclo[2.1.1]hexyl, bicyclo[2.2.1]heptyl, bicyclo[2.2.1]heptenyl, 6,6-dimethylbicyclo[3.1.1]heptyl, 2,6,6- trimethylbicyclo[3.1.1 ]heptyl, or bicyclo[2.2.2]octyl. Exemplary tricyclic hydrocarbon groups include adamantyl.

As used herein, the term "aryloxy" refers to an -O-aryl, wherein aryl is defined herein.

As used herein, the term "heteroaryloxy" refers to an -O-heteroaryl, wherein heteroaryl is defined herein.

As used herein, the term "heteroaryl" refers to a 5-14 membered monocyclic- or bicyclic- or polycyclic-aromatic ring system, having 1 to 8 heteroatoms selected from N, O or S. Preferably, the heteroaryl is a 5-10 or 5-7 membered ring system. Examples of 52822

monocyclic heteroaryl groups include pyridyl, thienyl, furanyl, pyrrolyl, pyrazolyl, imidazoyl, oxazolyl, isoxazolyl, thiazolyl, isothiazolyl, triazolyl, oxadiazolyl, thiadiazolyl and tetrazolyl. Examples of bicyclic heteroaryl groups include indolyl, benzofuranyl, quinolyl, isoquinolyl indazolyl, indolinyl, isoindolyl, indolizinyl, benzamidazolyl, and quinolinyl. More specific heteroaryl groups include 2- or 3-thien-2-yl, 2- or 3-furyl, 2- or 3-pyrrolyl, 2-, A-, or 5-imidazolyl, 3-, A-, or 5- pyrazolyl, 2-, 4-, or 5-thiazolyl, 3-, 4-, or 5- isothiazolyl, 2-, A-, or 5-oxazolyl, 3-, 4-, or 5-isoxazolyl, 3- or 5-1 ,2,4-triazolyl, 4- or 5-1 ,2, 3-triazolyl, tetrazolyl, 2-, 3-, or 4-pyridyl, 3- or 4-pyridazinyl, 3-, 4-, or 5-pyrazinyl, 2- pyrazinyl, 2-, A-, or 5-pyrimidinyl.

The term "heteroaryl" also refers to a group in which a heteroaromatic ring is fused to one or more cycloalkyl, or heterocyclyl rings, where the radical or point of attachment is on the heteroaromatic ring. Nonlimiting examples include 5,6,7,8-tetrahydroquinoline and 6,7-dihydro-5H-pyrrolo[3,2-d]pyrimidine.

A heteroaryl group may be mono-, bi-, tri-, or polycyclic, preferably mono-, bi-, or tricyclic, more preferably mono- or bicyclic.

"Heteroaryl" and "heterocyclyl" is also intended to include oxidized S or N, such as sulfinyl, sulfonyl and N-oxide of tertiary ring nitrogen.

When an alkyl, alkenyl, alkoxy, cycloalkyl, aryl, arylalkyl, heteroaryl, heterocyclyl, heterocyclylalkyl is optionally substituted, it may be substituted with one or more than one substituents selected from hydroxyl, cyano, nitro, Ci- _6- alkyl, C ₂ -6-alkenyl, C ₂ - ₆ - alkynyl, d-e-alkoxy, C ₂ -6-alkenyloxy, C ₂ -6-alkynyloxy, halogen, d-ehaloalkyl, C ₁ . eperhaloalkyl, d-ealkylcarbonyl, (CH ₂ ) _n -COOR ³ , amino, d-e-alkylamino, di-d-e- alkylamino, d- ₆ -alkylaminocarbonyl, di-d- ₆ -alkylaminocarbonyl, d- ₆ -alkylcarbonylamino, d-6-alkylcarbonyl(d-6-alkyl)amino, d- ₆ -alkylsulfonylamino, d- ₆ -alkylsulfonyl(d-6- alkyl)amino, Ci- _6- alkylthiol, d-e-alkylsulfanyl, d-e-alkylsulfinyl, d-e-alkylsulfonyl, aminosulfonyl, d- ₆ -alkylaminosulfonyl and di-d-βalkylaminosulfonyl, aminocarbonyld- ₆ alkyl, d-eaminocarbonyld-ealkyl, di-d-eaminocarbonyld-ealkyl, sulfanylCi- ₆ alkyl, d- ₆ alkylsulfanylCi- ₆ alkyl, sulfinylCi- ₆ alkyl, d-ealkylsulfinyld-ealkyl, sulfonylCi- ₆ alkyl, d- ₆ alkylsulfonyld- ₆ alkyl, C ₃ - ₇ cycloalkyl, C ₆ -ioaryl, heterocyclyl, heteroaryl, where each of the aforementioned hydrocarbon groups may be optionally substituted by one or more 52822

halogen, C _h alky!, hydroxyl, oxo, C-r ₆ -alkoxy, amino, Ci-6-alkylamino, di-Ci- ₆ -alkylamino or cyano.

Throughout this specification and in the claims that follow, unless the context requires otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated integer or step or group of integers or steps but not the exclusion of any other integer or step or group of integers or steps.

"Prodrugs" is meant to indicate a compound that may be converted under physiological conditions or by solvolysis to a biologically active compound of the invention. Thus, the term "prodrug" refers to a metabolic precursor of a compound of the invention that is pharmaceutically acceptable. A prodrug may be inactive when administered to a subject in need thereof, but is converted in vivo to an active compound of the invention. Prodrugs are typically rapidly transformed in vivo to yield the parent compound of the invention, for example, by hydrolysis in blood or conversion in the gut or liver. The prodrug compound often offers advantages of solubility, tissue compatibility or delayed release in a mammalian organism (see, Bundgard, H., Design of Prodrugs (1985), pp. 7- 9, 21-24 (Elsevier, Amsterdam)).

A discussion of prodrugs is provided in Higuchi, T., et al., "Pro-drugs as Novel Delivery Systems," A.C.S. Symposium Series, Vol. 14, and in Bioreversible Carriers in Drug Design, ed. Edward B. Roche, Anglican Pharmaceutical Association arid Pergamon Press, 1987.

"Optional" or "optionally" means that the subsequently described event of circumstances may or may not occur, and that the description includes instances where said event or circumstance occurs and instances in which it does not. For example, "optionally substituted aryl" means that the aryl radical may or may not be substituted and that the description includes both substituted aryl radicals and aryl radicals having no substitution.

"Pharmaceutically acceptable carrier, diluent or excipient" includes without limitation any adjuvant, carrier, excipient, glidant, sweetening agent, diluent, preservative, dye/colorant, flavor enhancer, surfactant, wetting agent, dispersing agent, suspending 52822

agent, stabilizer, isotonic agent, solvent, or emulsifier which has been approved by the United States Food and Drug Administration as being acceptable for use in humans or domestic animals.

"Pharmaceutically acceptable salt" includes both acid and base addition salts.

"Pharmaceutically acceptable acid addition salt" refers to those salts which retain the biological effectiveness and properties of the free bases, which are not biologically or otherwise undesirable, and which are formed with inorganic acids such as, but not limited to, hydrochloric acid, hydrobromic acid, sulfuric acid, nitric acid, phosphoric acid and the like, and organic acids such as, but not limited to, acetic acid, 2,2-dichloroacetic acid, adipic acid, alginic acid, ascorbic acid, aspartic acid, benzenesulfonic acid, benzoic acid, 4-acetamidobenzoic acid, camphoric acid, camphor-10-sulfonic acid, capric acid, caproic acid, caprylic acid, carbonic acid, cinnamic acid, citric acid, cyclamic acid, dodecylsulfuric acid, ethane-1 ,2-disulfonic acid, ethanesulfonic acid, 2-hydroxyethanesulfonic acid, formic acid, fumaric acid, galactaric acid, gentisic acid, glucoheptonic acid, gluconic acid, glucuronic acid, glutamic acid, glutaric acid, 2-oxo- glutaric acid, glycerophosphorirc acid, glycolic acid, hippuric acid, isobutyric acid, lactic acid, lactobionic acid, lauric acid, maleic acid, malic acid, malonic acid, mandelic acid, methanesulfonic acid, mucic acid, naphthalene-1 ,5-disulfonic acid, naphthalene-2- sulfonic acid, 1-hydroxy-2-naphthoic acid, nicotinic acid, oleic acid, orotic acid, oxalic acid, palmitic acid, pamoic acid, propionic acid, pyroglutamic acid, pyruvic acid, salicylic acid, 4-aminosalicylic acid, sebacic acid, stearic acid, succinic acid, tartaric acid, thiocyanic acid, p-toluenesulfonic acid, trifluoroacetic acid, undecylenic acid, and the like.

"Pharmaceutically acceptable base addition salt" refers to those salts which retain the biological effectiveness and properties of the free acids, which are not biologically or otherwise undesirable. These salts are prepared from addition of an inorganic base or an organic base to the free acid. Salts derived from inorganic bases include, but are not limited to, the sodium, potassium, lithium, ammonium, calcium, magnesium, iron, zinc, copper, manganese, aluminum salts and the like. Preferred inorganic salts are the ammonium, sodium, potassium, calcium, and magnesium salts. Salts derived from organic bases include, but are not limited to, salts of primary, secondary, and tertiary amines, substituted amines including naturally occurring substituted amines, cyclic 52822

amines and basic ion exchange resins, such as ammonia, isopropylamine, trimethylamine, diethylamine, triethylamine, tripropylamine, diethanolamine, ethanolamine, deanol, 2-dimethylaminoethanol, 2-diethylaminoethanol, dicyclohexylamine, lysine, arginine, histidine, caffeine, procaine, hydrabamine, choline, betaine, benethamine, benzathine, ethylenediamine, glucosamine, methylglucamine, theobromine, triethanolamine, tromethamine, purines, piperazine, piperidine, N- ethylpiperidine, polyamine resins and the like. Particularly preferred organic bases are isopropylamine, diethylamine, ethanolamine, trimethylamine, dicyclohexylamine, choline and caffeine.

Often crystallizations produce a solvate of the compound of the invention. As used herein, the term "solvate" refers to an aggregate that comprises one or more molecules of a compound of the invention with one or more molecules of solvent. The solvent may be water, in which case the solvate may be a hydrate. Alternatively, the solvent may be an organic solvent. Thus, the compounds of the present invention may exist as a hydrate, including a monohydrate, dihydrate, hemihydrate, sesquihydrate, trihydrate, tetrahydrate and the like, as well as the corresponding solvated forms. The compound of the invention may be true solvates, while in other cases, the compound of the invention may merely retain adventitious water or be a mixture of water plus some adventitious solvent.

A "pharmaceutical composition" refers to a formulation of a compound of the invention and a medium generally accepted in the art for the delivery of the biologically active compound to mammals, e.g., humans. Such a medium includes all pharmaceutically acceptable carriers, diluents or excipients thereof.

As used herein, the terms "disease" and "condition" may be used interchangeably or may be different in that the particular malady or condition may not have a known causative agent (so that etiology has not yet been worked out) and it is therefore not yet recognized as a disease but only as an undesirable condition or syndrome, wherein a more or less specific set of symptoms have been identified by clinicians.

The compounds of the invention, or their pharmaceutically acceptable salts may contain one or more asymmetric centers and may thus give rise to enantiomers, diastereomers, 52822

and other stereoisomeric forms that may be defined, in terms of absolute stereochemistry, as (R)- or (S)- or, as (D)- or (L)- for amino acids. Unless otherwise indicated, the present invention is meant to include all such possible isomers, as well as their racemic and optically pure forms. Optically active (+) and (-), (R)- and (S)-, or (D)- and (L)- isomers may be prepared using chiral synthons or chiral reagents, or resolved using conventional techniques, such as HPLC using a chiral column. When the compounds described herein contain olefinic double bonds or other centers of geometric asymmetry, and unless specified otherwise, it is intended that the compounds include both E and Z geometric isomers. Likewise, all tautomeric forms are also intended to be included.

A "stereoisomer" refers to a compound made up of the same atoms bonded by the same bonds but having different three-dimensional structures, which are not interchangeable. The present invention contemplates various stereoisomers and mixtures thereof and includes "enantiomers", which refers to two stereoisomers whose molecules are nonsuperimposeable mirror images of one another.

The present invention includes all pharmaceutically acceptable isotopically-labeled compounds of Formula (I) wherein one or more atoms are replaced by atoms having the same atomic number, but an atomic mass or mass number different from the atomic mass or mass number usually found in nature.

Examples of isotopes suitable for inclusion in the compounds of the invention comprises isotopes of hydrogen, such as ² H and ³ H, carbon, such as ¹¹ C, ¹³ C and ¹⁴ C, chlorine, such as ³⁶ CI, fluorine, such as ¹⁸ F, iodine, such as ¹²³ I and ¹²⁵ I, nitrogen, such as ¹³ N and ¹⁵ N, oxygen, such as ¹⁵ O, ¹⁷ O and ¹⁸ O, phosphorus, such as ³² P, and sulphur, such as ³⁵ S. Substitution with heavier isotopes such as deuterium, i.e. ² H, may afford certain therapeutic advantages resulting from greater metabolic stability, for example, increased in vivo half-life or reduced dosage requirements, and hence may be preferred in some circumstances. Isotopically-labeled compounds of Formula (I) can generally be prepared by conventional techniques known to those skilled in the art or by processes analogous to those described in the accompanying Examples and Preparations Sections using an appropriate isotopically-labeled reagent in place of the non-labeled reagent previously employed. 52822

In a further or alternative embodiment of the present invention, there is a presented a compound selected from formula (II), (Na), (III) and (Ilia)

or a pharmaceutically acceptable salt thereof, wherein:

R ² and R ^2a are independently selected from halogen, hydroxy, C ₁ - ₄ hydroxylalkyl, cyano, -NR ⁴ R ⁵ , -CH ₂ NR ⁴ R ⁵ , C^ alkyl, C ₃ - ₇ cycloalkyl, C^ alkoxy, -S(O) _P R ³ , -OS(O) ₂ R ³ , -C(O)R ³ , -C(O)OR ³ , -CH ₂ C(O)OR ³ , -C(O)NR ⁴ R ⁵ , -CH ₂ C(O)NR ⁴ R ⁵ , -NR ³ C(O)NR ⁴ R ⁵ , - NR ³ C(O)OR ³ , d-e haloalkyl, d-e perhaloalkyl, C ₆ -ioaryloxy, heterocyclyl, heteroaryl; R ³ is hydrogen, C _h alky!, C ₃ _ ₇ cycloalkyl, C ₆ -ioaryl, heteroaryl, or heterocyclyl; R ⁴ and R ⁵ are independently hydrogen, C _h alky!, C ₃ - ₇ cycloalkyl, C ₆ - ₁₀ aryl, heteroaryl, heteroaryld^alkyl, heterocyclyl, heterocyclyld^alkyl or R ⁴ and R ⁵ taken together may form a monocyclic or a bicyclic ring system which may be saturated, partially saturated or aromatic and may optionally have additional heteroatoms selected from O, N or S, the said ring system may further be optionally substituted; 52822

q is 1 , 2, or 3;

Y is NR ⁸ R ⁹ ; and

R ⁸ and R ⁹ along with the nitrogen to which they are bound form a monocyclic or a bicyclic ring system which may be saturated, partially saturated or aromatic and may optionally have additional heteroatoms selected from O, N and S, the said ring system may further be optionally substituted.

In a further or alternative embodiment of the present invention, there is a presented a compound selected from formula (II), (Na), (III) and (Ilia)

or a pharmaceutically acceptable salt thereof, wherein:

R ² and R ^2a are independently selected from halogen, hydroxy, C ₁ - ₄ hydroxylalkyl, cyano, -NR ⁴ R ⁵ , -CH ₂ NR ⁴ R ⁵ , d_ ₄ alkyl, C ₃ - ₇ cycloalkyl, C^ alkoxy, -S(O) _P R ³ , -OS(O) ₂ R ³ , -C(O)R ³ , -C(O)OR ³ , -CH ₂ C(O)OR ³ , -C(O)NR ⁴ R ⁵ , -CH ₂ C(O)NR ⁴ R ⁵ , -NR ³ C(O)NR ⁴ R ⁵ , - NR ³ C(O)OR ³ , d-e haloalkyl, d_ ₆ perhaloalkyl, C ₆ -ioaryloxy, heterocyclyl, heteroaryl; R ³ is hydrogen, d_ ₆ alkyl, C ₃ -7cycloalkyl, C ₆ -ioaryl, heteroaryl, or heterocyclyl; 52822

R ⁴ and R ⁵ are independently hydrogen, C ₆ -

₁₀ aryl, heteroaryl, heteroarylC^alkyl, heterocyclyl, heterocyclyld^alkyl or

R ⁴ and R ⁵ taken together may form a monocyclic or a bicyclic ring system which may be saturated, partially saturated or aromatic and may optionally have additional heteroatoms selected from O, N or S, the said ring system may further be optionally substituted; q is 1 , 2, or 3;

Y is NR ⁸ R ⁹ ; and one of R ⁸ or R ⁹ is hydrogen or a d^alkyl and the other is phenyl which is substituted with d-ealkylcarbonylamino, carbamoyl, N^d-ealky^carbamoyl, N,N-di-(d_

₆ alkyl)carbamoyl, or heterocyclecarbonyl.

References herein to compounds of formula (I) apply equally to compounds of formula (II), (Na), (III) and (Ilia).

References herein to embodiments of the invention apply equally to compounds of formula (I) and compounds of (II), (Na), (III) and (Ilia), insofar as the embodiments are present.

Various embodiments of the invention are described below. It will be appreciated that the features specified in each embodiment may be combined with other specified features, to provide further embodiments.

In one embodiment, rings A and B are phenyl.

In another embodiment, L ₁ is a bond.

In another embodiment, L ₂ is -(CH ₂ )-.

In another embodiment, V is halogen, e.g. fluoro, or -OH. In a further embodiment, V is -OH, preferably OH in the (3S) configuration.

In another embodiment, R ¹ and R ^1a are hydrogen. 52822

In another embodiment, R ² is halogen, e.g. chloro and q=1. R ² is preferably chloro and q=1.

In another embodiment, R ^2a is alkoxy, e.g. ethoxy and q=1. R ^2a is preferably ethoxy and q=1.

In another embodiment, q = 1.

In another embodiment, rings A and B are phenyl, L1 is a bond, L2 is -(CH ₂ )-, V is -OH, R ¹ and R ^1a are hydrogen, R ² is chloro and q = 1 , and R ^2a is ethoxy and q = 1.

In another embodiment, where R ⁴ and R ⁵ taken together form a monocyclic or a bicyclic ring system which may be saturated, partially saturated or aromatic and may optionally have additional heteroatoms selected from O, N or S, the said ring system is unsubstituted.

In another embodiment, X is -(CH ₂ )- or C(O). In a further embodiment, X is -(CH ₂ )-.

In another embodiment, X is -(CR ⁶ R ⁷ )-.

In one embodiment, R ⁶ and R ⁷ taken together can form a cyclic ring, which may optionally have heteroatoms selected from O, N or S. Non limitative examples of such spiro cyclic systems are

52822

In another embodiment, Y is NR ⁸ R ⁹ and R ⁸ and R ⁹ along with the nitrogen to which they are bound form a monocyclic or a bicyclic ring system which may be saturated, partially saturated or aromatic and may optionally have additional heteroatoms selected from O, N and S, the said ring system may further be optionally substituted.

In another embodiment, where Y is NR ⁸ R ⁹ , R ⁸ and R ⁹ along with the nitrogen to which they are bound form a monocyclic ring system which is saturated and may optionally have additional heteroatoms selected from O, N and S, the ring is selected from pyrrolidinyl, piperidinyl, piperazinyl and morpholinyl.

In another embodiment, where Y is NR ⁸ R ⁹ , R ⁸ and R ⁹ along with the nitrogen to which they are bound form a monocyclic ring system which is saturated and may optionally have additional heteroatoms selected from O, N and S, said ring system is substituted by (R ¹⁵ ) _w , wherein:

R ¹⁵ is independently halogen, hydroxy, C ₁ - ₄ hydroxylalkyl, cyano, -NR ¹⁶ R ¹⁷ , oxo (=0), - CH ₂ NR ¹⁶ R ¹⁷ , C ₁ - ₄ alkyl, C ₃ - ₇ cycloalkyl, C^ alkoxy, -S(O) _P R ¹⁸ , -OS(O) ₂ R ¹⁸ , -C(O)R ¹⁸ , - 52822

C(O)OR ¹⁸ , -CH ₂ C(O)OR ¹⁸ , -C(O)NR ¹⁶ R ¹⁷ , -CH ₂ C(O)NR ¹⁶ R ¹⁷ , -NR ¹⁸ C(O)NR ¹⁶ R ¹⁷ , -

NR ¹⁸ C(O)OR ¹⁸ , CH ₂ NR ¹⁶ C(O)OR ¹⁸ , CH ₂ NR ¹⁶ C(O)NR ¹⁶ R ¹⁷ , CH ₂ NR ¹⁶ S(O) _P R ¹⁸ , -

S(O) ₂ NR ¹⁶ R ¹⁷ , 0C^ alkylC(0)0R ¹⁸ , OC^ alkylC(O)NR ¹⁶ R ¹⁷ , C^ haloalkyl, d_ ₆ perhaloalkyl, C ₆ -ioaryloxy, heterocyclyl, heteroaryl;

R ¹⁶ and R ¹⁷ are independently hydrogen, d_ ₆ alkyl, C ₃ _ ₇ cycloalkyl, C ₆ -

₁₀ aryl, heteroaryl, heteroaryl(d^)alkyl, heterocyclyl, heterocyclyl(d^)alkyl or

R ¹⁶ and R ¹⁷ taken together may form a monocyclic or a bicyclic ring system which may be saturated, partially saturated or aromatic and may optionally have additional heteroatoms selected from O, N or S, the said ring system may further be optionally substituted;

R ¹⁸ is hydrogen, d-e alkyl, C ₃ - ₇ cycloalkyl, C ₆ -ioaryl, heteroaryl, or heterocyclyl; p, for each occurrence, is independently O or an integer from 1-2; and w is 0-4.

In another embodiment, R ¹⁵ is halogen, e.g. fluoro, chloro or bromo, hydroxyl, C ₁ ^ hydroxylalkyl, e.g. hydroxymethyl or 2-hydroxyethyl, cyano, -NR ¹⁶ R ¹⁷ , e.g. methylamino or dimethylamino, -CH ₂ NR ¹⁶ R ¹⁷ , e.g. methylaminomethyl, - CH ₂ NR ¹⁶ C(O)R ¹⁸ , e.g. CH ₂ NHC(O)CH ₃ , CH ₂ NR ¹⁶ C(O)OR ¹⁸ , e.g. -CH ₂ NHC(O) ₂ CH ₃ , CH ₂ NR ¹⁶ C(O)NR ¹⁶ R ¹⁷ , e.g. -CH ₂ NHC(O)NHCH ₃ , CH ₂ NR ¹⁶ S(O) _P R ¹⁸ , e.g. -CH ₂ NHS(O) ₂ CH ₃ , -S(O) ₂ NR ¹⁶ R ¹⁷ , e.g. - S(O) ₂ NHCH ₃ , heterocyclyl, e.g. piperidinyl, morpholinyl, piperazinyl, or heteroaryl, e.g. pyrimidyl, pyrazolyl, pyrrolyl, thienyl, imidazolyl, tetrazolyl, triazolyl, pyridyl or pyrazinyl, and w is 1 -3.

In another embodiment, where Y is NR ⁸ R ⁹ , R ⁸ and R ⁹ along with the nitrogen to which they are bound form a monocyclic ring system which is saturated and may optionally have additional heteroatoms selected from O, N and S, the ring is selected from

wherein

_R ^i5a _ _R ^i5j _are j _nc | _e p _enc | _en tiy hydrogen C^hydroxylalkyl, oxo (=0), d^ alkyl, C ₃ - ycycloalkyl, C(O)OR ¹⁸ -C(O)NR ¹⁶ R ¹⁷ heterocyclyl, heteroaryl, OC ₁ ^ alkylC(O)OR ¹⁸ and

OC^ alkylC(O)NR ¹⁶ R ¹⁷ ; or R ^15a and R ^15d - R ^15j may also be halogen;

R ¹⁶ and R ¹⁷ are independently hydrogen or C _h alky!, or R ¹⁶ and R ¹⁷ taken together may form a C ₅ - ₇ heterocyclyl; and

R ¹⁸ is hydrogen,

In another embodiment, Y is

?? 52822

In another embodiment, where Y is NR ⁸ R ⁹ and R ⁸ and R ⁹ along with the nitrogen to which they are bound form a monocyclic aromatic ring system with additional heteroatoms selected from O, N and S, the said ring is selected from pyrrolyl, pyrazolyl, imidazolyl, 1 ,2,3-triazolyl and 1 ,3,4-triazolyl.

In another embodiment, where Y is NR ⁸ R ⁹ and R ⁸ and R ⁹ along with the nitrogen to which they are bound form a monocyclic aromatic ring system with additional heteroatoms selected from O, N and S, the said ring is optionally substituted by (R ¹⁹ ) _w , where 52822

R ¹⁹ is independently halogen, hydroxy, C _1-4 hydroxylalkyl, cyano, -NR ²⁰ R ²¹ , -CH ₂ NR ²⁰ R ²¹ ,

C^ alkyl, C ₃ - ₇ cycloalkyl, C^ alkoxy, -S(O) _P R ²² , -OS(O) ₂ R ²² , -C(O)R ²² , -C(O)OR ²² , -

CH ₂ C(O)OR ²² , -C(O)NR ²⁰ R ²¹ , -CH ₂ C(O)NR ²⁰ R ² VNR ²² C(O)NR ²⁰ R ²¹ , -NR ²² C(O)OR ²² , C ₁ - e haloalkyl, C^ perhaloalkyl, C ₆ --ιoaryloxy, heterocyclyl, heteroaryl;

R ²² is hydrogen, C^ alkyl, C ₃ _ ₇ cycloalkyl, C ₆ --ιoaryl, heteroaryl, or heterocyclyl;

R ²⁰ and R ²¹ are independently hydrogen, C^ alkyl, C ₃ - ₇ cycloalkyl, C ₆ - ₁ oaryl(C ₁ ^)alkyl, C ₆ -

₁₀ aryl, heteroaryl, heteroaryl(C ₁ ^)alkyl, heterocyclyl, heterocyclyl(C ₁ ^)alkyl or

R ²⁰ and R ²¹ taken together may form a monocyclic or a bicyclic ring system which may be saturated, partially saturated or aromatic and may optionally have additional heteroatoms selected from O, N or S, the said ring system may further be optionally substituted; and w is 1-4.

In a further embodiment, Y is

where R ¹⁹ and w are defined above.

In a further embodiment, Y is

52822

In another aspect of the invention, Y is

52822

^H 2 ^Noc fir

In another embodiment of the invention, one of R ⁸ or R ⁹ is hydrogen or a d^alkyl and the other is phenyl which is substituted with Ci_ ₆ alkylcarbonylamino, carbamoyl, N-(Ci- ₆ alkyl)carbamoyl, N.N-dKCVealkyOcarbamoyl, or heterocyclecarbonyl.

In another embodiment of the invention, one of R ⁸ or R ⁹ is hydrogen or methyl and the other is phenyl which is substituted with acetamido, N-methylcarbamoyl, or carbamoyl, pyrrolidin-1 -ylcarbonyl.

A specific embodiment of the compounds of the invention is selected from:

1-{(2R, 3S, 4R, 5R, 6S)-6-[4-Chloro-3- (4-ethoxy-benzyl)-phenyl]-3, 4, 5-trihydroxy- tetrahydro-pyran-2-ylmethyl}-pyrrolidine-2-carboxylic acid methyl ester;

1-{(2R, 3S, 4R, 5R, 6S)-6-[4-Chloro-3- (4-ethoxy-benzyl)-phenyl]-3, 4, 5-trihydroxy- tetrahydro-pyran^-ylmethylj-pyrrolidine^-carboxylic acid;

1-{(2R, 3S, 4R, 5R, 6S)-6-[4-Chloro-3- (4-ethoxy-benzyl)-phenyl]-3, 4, 5-trihydroxy- tetrahydro-pyran-2-ylmethyl}-pyrrolidine-2-carboxamide; 52822

(S)-1-{(2R, 3S, 4R, 5R, 6S)-6-[4-Chloro-3- (4-ethoxy-benzyl)-phenyl]-3, 4, 5- trihydroxytetrahydro-pyran-2-ylmethyl}-pyrrolidine-2-carboxy lic acidmethylamide;

(S)-1-{(2R, 3S, 4R, 5R, 6S)-6-[4-Chloro-3- (4-ethoxy-benzyl)-phenyl]-3, 4, 5 -trihydroxy- tetrahydro-pyran-2-ylmethyl}-pyrrolidin-2-yl)-pyrrolidin-1-y l methanone;

(2S, 3R, 4R, 5S, 6R)-2-[4-Chloro-3- (4-ethoxy-benzyl)-phenyl]-6- ((S)-2-hydroxymethyl- pyrrolidin-1-ylmethyl)-tetrahydro-pyran-3, 4, 5-triol;

4-{(2R, 3S, 4R, 5R, 6S)-6-[4-Chloro-3- (4-ethoxy-benzyl)-phenyl]-3, 4, 5-trihydroxy- etrahydro-pyran-2-ylmethyl}-piperazin-2-one;

4-{(2R, 3S, 4R, 5R, 6S)-6-[4-Chloro-3- (4-ethoxy-benzyl)-phenyl]-3, 4, 5-trihydroxy- tetrahydro-pyran-2-ylmethyl}-1-methyl-piperazin-2-one;

(2S, 3R, 4R, 5S, 6R)-2-[4-Chloro-3- (4-ethoxy-benzyl)-phenyl]-6- (4-hydroxymethyl-[1 , 2,

3]triazol-1-ylmethyl)-tetrahydro-pyran-3, 4, 5-triol;

(2S, 3R, 4R, 5S, 6R)-2-[4-Chloro-3- (4-ethoxy-benzyl)-phenyl]-6- (5-hydroxymethyl-[1 , 2,

3]triazol-1-ylmethyl)-tetrahydro-pyran-3, 4, 5-triol;

1-{(2R, 3S, 4R, 5R, 6S)-6-[4-Chloro-3- (4-ethoxy-benzyl)-phenyl]-3, 4, 5-trihydroxy- tetrahydro-pyran-2-ylmethyl}-1 H-[1 , 2, 3]triazole-4-carboxylic acid methyl ester;

1-{(2R,3S,4R,5R,6S)-6-[4-Chloro-3-(4-ethoxy-benzyl)-pheny l]-3,4,5-trihydroxy- tetrahydro-pyran-2-ylmethyl}-1 H-[1 ,2,3]triazole-4-carboxylic acid amide;

1-{(2R, 3S, 4R, 5R, 6S)-6-[4-Chloro-3- (4-ethoxy-benzyl)-phenyl]-3, 4, 5-trihydroxy- tetrahydro-pyran-2-ylmethyl}-1 H-[1 , 2, 3]triazole-4-carboxylic acid;

1-{(2R, 3S, 4R, 5R, 6S)-6-[4-Chloro-3- (4-ethoxy-benzyl)-phenyl]-3, 4, 5-trihydroxy- tetrahydro-pyran-2-ylmethyl}-piperidine-4-carboxylic acid ethyl ester;

1-{(2R, 3S, 4R, 5R, 6S)-6-[4-Chloro-3- (4-ethoxy-benzyl)-phenyl]-3, 4, 5-trihydroxy- tetrahydro-pyran^-ylmethylj-piperidine^-carboxylic acid;

1-(2S, 3R, 4R, 5S, 6R)-2-[4-Chloro-3- (4-ethoxy-benzyl)-phenyl]-6- (4-hydroxymethyl- piperidin-1-ylmethyl)-tetrahydro-pyran-3, 4, 5-triol;

1-{(2R, 3S, 4R, 5R, 6S)-6-[4-Chloro-3- (4-ethoxy-benzyl)-phenyl]-3, 4, 5-trihydroxy- tetrahydro-pyran-2-ylmethyl}-piperidine-3-carboxylic acid ethyl ester;

1-{(2R, 3S, 4R, 5R, 6S)-6-[4-Chloro-3- (4-ethoxy-benzyl)-phenyl]-3, 4, 5-trihydroxy- tetrahydro-pyran-2-ylmethyl}-piperidine-3-carboxylic acid;

(2S, 3R, 4R, 5S, 6R)-2-[4-Chloro-3- (4-ethoxy-benzyl)-phenyl]-6- (3-hydroxymethyl- piperidin-1-ylmethyl)-tetrahydro-pyran-3, 4, 5-triol;

(2S, 3R, 4R, 5S, 6R)-2-[4-Chloro-3- (4-ethoxy-benzyl)-phenyl]-6- (3-hydroxy-piperidin-1- ylmethyl)-tetrahydro-pyran-3, 4, 5-triol; (2S, 3R, 4R, 5S, 6R)-2-[4-Chloro-3- (4-ethoxy-benzyl)-phenyl]-6- (4-hydroxy-piperidin-1- ylmethyl)-tetrahydro-pyran-3, 4, 5-triol;

(2S, 3R, 4R, 5S, 6R)-2-[4-Chloro-3- (4-ethoxy-benzyl)-phenyl]-6- ((R)-3-hydroxy- pyrrolidin-1-ylmethyl)-tetrahydro-pyran-3, 4, 5-triol;

(2S,4R)-1-{(2R,3S,4R,5R,6S)-6-[4-Chloro-3-(4-ethoxy-benzy l)-phenyl]-3,4,5-trihydroxy- tetrahydro-pyran-2-ylmethyl}-4-hydroxy-pyrrolidine-2-carboxy lic acid amide;

(R)-1-{(2R,3S,4R,5R,6S)-6-[4-Chloro-3-(4-ethoxy-benzyl)-p henyl]-3,4,5-trihydroxy- tetrahydro-pyran-2-ylmethyl}-pyrrolidine-2-carboxamide;

1-{(2R,3S,4R,5R,6S)-6-[4-Chloro-3-(4-ethoxy-benzyl)-pheny l]-3,4,5-trihydroxy- tetrahydro-pyran-2-ylmethyl}-1 H-pyrazole-4-carboxylic acid ethyl ester;

1-{(2R,3S,4R,5R,6S)-6-[4-Chloro-3-(4-ethoxy-benzyl)-pheny l]-3,4,5-trihydroxy- tetrahydro-pyran-2-ylmethyl}-1 H-pyrazole-4-carboxylic acid;

2-{(2R,3S,4R,5R,6S)-6-[4-Chloro-3-(4-ethoxy-benzyl)-pheny l]-3,4,5-trihydroxy- tetrahydro-pyran-2-ylmethyl}-2H-pyrazole-3-carboxylic acid ethyl ester;

2-{(2R,3S,4R,5R,6S)-6-[4-Chloro-3-(4-ethoxy-benzyl)-pheny l]-3,4,5-trihydroxy- tetrahydro-pyran-2-ylmethyl}-2H-pyrazole-3-carboxylic acid;

2-{(2R,3S,4R,5R,6S)-6-[4-Chloro-3-(4-ethoxy-benzyl)-pheny l]-3,4,5-trihydroxy- tetrahydro-pyran-2-ylmethyl}-2H-pyrazole-3-carboxylic acid amide;

(S)-1-{(2R,3S,4R,5R,6S)-6-[4-Chloro-3-(4-ethoxy-benzyl)-p henyl]-3,4,5-trihydroxy- tetrahydro-pyran-2-ylmethyl}-2-methyl-pyrrolidine-2-carboxyl ic acid methyl ester;

(2S,4S)-1-{(2R,3S,4R,5R,6S)-6-[4-Chloro-3-(4-ethoxy-benzy l)-phenyl]-3,4,5-trihydroxy- tetrahydro-pyran-2-ylmethyl}-4-fluoro-pyrrolidine-2-carboxyl ic acid amide;

(S)-1-{(2S,3S,4R,5R,6S)-6-[4-Chloro-3-(4-ethoxy-benzyl)-p henyl]-3,4,5-trihydroxy- tetrahydro-pyran-2-carbonyl}-pyrrolidine-2-carboxylic acid amide;

1-{(2R,3S,4R,5R,6S)-6-[4-Chloro-3-(4-ethoxy-benzyl)-pheny l]-3,4,5-trihydroxy- tetrahydro-pyran-2-ylmethyl}-3-ethyl-urea;

N-[3-({(2R,3S,4R,5R,6S)-6-[4-Chloro-3-(4-ethoxy-benzyl)-p henyl]-3,4,5- trihydroxy-tetrahydro-pyran-2-ylmethyl}-amino)-phenyl]-aceta mide;

3-({(2R,3S,4R,5R,6S)-6-[4-Chloro-3-(4-ethoxy-benzyl)-phen yl]-3,4,5-tri hydroxy-tetrahydro-pyran-2-ylmethyl}-amino)-N-methyl-benzami de;

3-({(2R,3S,4R,5R,6S)-6-[4-Chloro-3-(4-ethoxy-benzyl)-phen yl]-3,4,5-trihydroxy- tetrahydro-pyran-2-ylmethyl}-amino)-benzamide;

[3-({(2R,3S,4R,5R,6S)-6-[4-Chloro-3-(4-ethoxy-benzyl)-phe nyl]-3,4,5-trihydroxy- tetrahydro-pyran-2-ylmethyl}-methyl-amino)-phenyl]-pyrrolidi n-1-yl-methanone;

28 52822

3-({(2R,3S,4R,5R,6S)-6-[4-Chloro-3-(4-ethoxy-benzyl)-phen yl]-3,4,5-trihydroxy- tetrahydro-pyran-2-ylmethyl}-methyl-amino)-N-methyl-benzamid e; or a pharmaceutically acceptable salt thereof.

The compounds of the present invention are useful as both prophylactic and therapeutic treatments for diseases or conditions related to the inhibition of SGLT-2 and SGLT-1.

Thus, as a further aspect, the invention relates to a method for treating a disease or condition related to the inhibition of SGLT-2, comprising administration of an effective therapeutic amount of a compound of formula (I) or a pharmaceutically acceptable salt thereof.

Compounds of formula (I) may be useful in the treatment of metabolic disorders, or conditions such as (such as e.g. retinopathy, nephropathy or neuropathies, diabetic foot, ulcers, macroangiopathies), metabolic acidosis or ketosis, reactive hypoglycaemia, hyperinsulinaemia, glucose metabolic disorder, insulin resistance, metabolic syndrome, dyslipidaemias of different origins, atherosclerosis and related diseases, obesity, high blood pressure, chronic heart failure, edema and hyperuricaemia.

Compounds of formula (I) may be also suitable for preventing beta-cell degeneration such as apoptosis or necrosis of pancreatic beta cells, for improving or restoring the functionality of pancreatic cells, increasing the number and size of pancreatic beta cells, for use as diuretics or antihypertensives and for the prevention and treatment of acute renal failure.

As a further aspect, the invention relates to a method for treating a disorder selected from type 1 and type 2 diabetes mellitus, complications of diabetes, comprising administration of an effective amount of a compound of formula (I) or a pharmaceutically acceptable salt thereof.

A compound of formula (I) of the present invention may be usefully combined with another pharmacologically active compound, or with two or more other pharmacologically active compounds, for use in therapy. For example, a compound of the formula (I), or a pharmaceutically acceptable salt thereof, as defined above, may be 52822

administered simultaneously, sequentially or separately in combination with one or more agents for the treatment of disorders previously listed.

Therapeutic agents which are suitable for such a combination include, for example, antidiabetic agents such as metformin, sulphonylureas (e.g. glibenclamide, tolbutamide, glimepiride), nateglinide, repaglinide, thiazolidinediones (e.g. rosiglitazone, pioglitazone), PPAR-gamma-agonists (e.g. Gl 262570) and antagonists, PPAR-gamma/alpha modulators (e.g. KRP 297), alpha- glucosidase inhibitors (e.g. acarbose, voglibose), DPPIV inhibitors (e.g. LAF237, MK-431 ), alpha2-antagonists, insulin and insulin analogues, GLP-1 and GLP-1 analogues (e.g. exendin-4) or amylin. The list also includes inhibitors of protein tyrosinephosphatase 1 , substances that affect deregulated glucose production in the liver, such as e.g. inhibitors of glucose-6-phosphatase, orfructose-1 ,6-bisphosphatase, glycogen phosphorylase, glucagon receptor antagonists and inhibitors of phosphoenol pyruvate carboxykinase, glycogen synthase kinase or pyruvate dehydrokinase, lipid lowering agents such as for example HMG-CoA-reductase inhibitors (e.g. simvastatin, atorvastatin), fibrates (e.g. bezafibrate, fenofibrate), nicotinic acid and the derivatives thereof, PPAR-alpha agonists, PPAR-delta agonists, ACAT inhibitors (e.g. avasimibe) or cholesterol absorption inhibitors such as, for example, ezetimibe, bile acid-binding substances such as, for example, cholestyramine, inhibitors of ileac bile acid transport, HDL-raising compounds such as CETP inhibitors or ABC1 regulators or active substances for treating obesity, such as sibutramine or tetrahydrolipostatin, dexfenfluramine, axokine, antagonists of the cannabinoidi receptor, MCH-1 receptor antagonists, MC4 receptor agonists, NPY5 or NPY2 antagonists or β3- agonists such as SB-418790 or AD-9677 and agonists of the 5HT2c receptor.

Moreover, combinations with drugs for influencing high blood pressure, chronic heart failure or atherosclerosis such as e.g. A-Il antagonists or ACE inhibitors, ECE inhibitors, diuretics, β- blockers, Ca-antagonists, centrally acting antihypertensives, antagonists of the alpha-2- adrenergic receptor, inhibitors of neutral endopeptidase, thrombocyte aggregation inhibitors and others or combinations thereof are suitable. Examples of angiotensin Il receptor antagonists are candesartan cilexetil, potassium losartan, eprosartan mesylate, valsartan, telmisartan, irbesartan, EXP-3174, L-158809, EXP- 3312, olmesartan, medoxomil, tasosartan, KT-3-671 , GA-01 13, RU-64276, EMD- 90423, BR-9701 , etc. Angiotensin Il receptor antagonists are preferably used for the 52822

treatment or prevention of high blood pressure and complications of diabetes, often combined with a diuretic such as hydrochlorothiazide.

A combination with uric acid synthesis inhibitors or uricosurics is suitable for the treatment or prevention of gout.

A combination with GABA-receptor antagonists, Na-channel blockers, topiramat, protein- kinase C inhibitors, advanced glycation end product inhibitors or aldose reductase inhibitors may be used for the treatment or prevention of complications of diabetes.

Such combinations may offer significant advantages, including synergistic activity, in therapy.

The present invention is also in relation to a pharmaceutical composition comprising a compound of formula 1 or its prodrug and pharmaceutically acceptable excipients.

In still another embodiment of the present invention, the prodrug is selected from a group comprising, esters and hydrates.

The term pro-drug is also meant to include any covalently bonded carries which release the active compound of the invention in vivo when such prodrug is administered to a mammalian subject. Pro-drugs of a compound of the invention may be prepared by modifying functional groups present in the compound of the invention in such a way that the modifications are cleaved, either in routine manipulation or in vivo, to the parent compound of the invention.

In still another embodiment of the present invention, the excipients are selected from a group comprising, binders, anti-adherents, disintegrants, fillers, diluents, flavors, colors, glidants, lubricants, preservatives, sorbents and sweeteners or combination(s) thereof.

In still another embodiment of the present invention, the composition is formulated into various dosage forms selected from a group comprising tablet, troches, lozenges, aqueous or oily suspensions, ointment, patch, gel, lotion, dentifrice, capsule, emulsion, creams, spray, drops, dispersible powders or granules, emulsion in hard or soft gel capsules, syrups and elixirs. 52822

Dosages of agents of the invention employed in practicing the present invention will of course vary depending, for example, on the particular condition to be treated, the effect desired and the mode of administration. In general, suitable daily dosages for oral administration are of the order of 0.1 to 10 mg/kg.

Method of Preparation

The invention provides, in another aspect, a process for preparing a compound of formula (I). The schemes detailed below show general schemes for synthesizing compounds of formula (I).

Compounds of formula (I) where Y is NR ⁸ R ⁹ and R ⁸ is hydrogen or C^ alkyl; R ⁹ is hydrogen, Ci- ₆ alkyl, C ₃ -7cycloalkyl, C ₆ -ioaryl, heteroaryl, heterocyclyl, heterocyclylC- _M alkyl or R ⁸ and R ⁹ along with the nitrogen to which they are bound form a monocyclic or a bicyclic ring system which is saturated, partially saturated or aromatic and may optionally have additional heteroatoms selected from O, N and S, may be prepared by reaction of compounds of formula (IV)

where V, R ¹ , R ^1a , R ² , R ^2a , L1 , L2, X and q are as hereinbefore defined and LG is a suitable leaving group, with a compound of HNR ⁸ R ⁹ . Where X is a d^alkylene, suitable LG include mesylate or tosylate and the transformation may be carried out with a suitable base, e.g. triethylamine in a suitable solvent such as dimethylformamide, or similar conditions well known to those skilled in the art. Where X is carbonyl, suitable LG include halide and the transformation may be carried out with a suitable base in a suitable solvent under conditions well known to those skilled in the art.

Compounds of formula (IV) may be prepared from compounds of formula (V) 52822

under suitable conditions for forming a leaving group, e.g. where LG is tosyl or mesyl, by reaction of the corresponding tosyl or mesyl halide, e.g. chloride, in a suitable solvent such as 2,6-lutidine, or under similar conditions well known to those skilled in the art.

Compounds of formula (V) are known in the art or may be prepared by methods known to those skilled in the art.

Compounds of formula (I) where Y is NR ⁸ R ⁹ and R ⁸ and R ⁹ along with the nitrogen to which they are bound form a monocyclic or a bicyclic ring system which is aromatic, may alternatively be prepared by reaction of compounds of formula (Vl)

where V, R ¹ , R ^1a , R ² , R ^2a , L1 , L2, X and q are as hereinbefore defined and W is a suitable precursor to the formation of the desired ring. For example, where Y is a 1 ,2,3- triazolyl or tetrazolyl group, W represents azide and the ring may be formed by reaction with a suitable reagent, e.g. for 1 ,2,3 triazole with a suitable alkynyl group or for a tetrazolyl with a suitable cyano-derivative under conditions well-known to those skilled in the art.

Compounds of formula (Vl) are known or may be prepared from compounds of formula (IV) under conditions well known to those skilled in the art.

It will be appreciated that compounds of formula (I) may be prepared by derivatisation of other compounds of formula (I) by transformations well known to those skilled in the art, e.g. functional groups as substitutents on Y may be transformed to different functional 52822

groups such as an ester function being converted to an acid, amide, hydroxym ethyl, keto, aldehyde as well as an ester. The said conversions may be carried out using reagents and conditions well documented in the literature.

It will be understood that the processes detailed above and elsewhere herein are solely for the purpose of illustrating the invention and should not be construed as limiting. A process utilizing similar or analogous reagents and/or conditions known to one skilled in the art may also be used to obtain a compound of the invention.

Any mixtures of final products or intermediates obtained can be separated on the basis of the physico-chemical differences of the constituents, in a known manner, into the pure final products or intermediates, for example by chromatography, distillation, fractional crystallization, or by the formation of a salt if appropriate or possible under the circumstances.

The term "comprising" encompasses "including" as well as "consisting" e.g. a composition "comprising" X may consist exclusively of X or may include something additional e.g. X + Y.

The word "substantially" does not exclude "completely" e.g. a composition which is "substantially free" from Y may be completely free from Y. Where necessary, the word "substantially" may be omitted from the definition of the invention. The term "about" in relation to a numerical value x means, for example, x+10%.

The following Examples are intended to illustrate the invention and are not to be construed as being limitations thereon. If not mentioned otherwise, all evaporations are performed under reduced pressure. The structure of final products, intermediates and starting materials is confirmed by standard analytical methods, e.g., microanalysis and spectroscopic characteristics, e.g. MS and NMR. Abbreviations used are those conventional in the art.

Example 1. 1 -{(2R, 3S, 4R, 5R, 6S)-6-[4-Chloro-3- (4-ethoxy-benzyl)-phenyl]-3, 4, 5- trihydroxy-tetrahydro-pyran-2-ylmethyl}-pyrrolidine-2-carbox ylic acid methyl ester 52822

Step I: To a solution of (2S, 3R, 4R, 5S, 6R)-2-[4-chloro-3- (4-ethoxy-benzyl)-phenyl]-6- hydroxymethyl-tetrahydro-pyran-3, 4, 5-triol (1.Og, 2.45 mmole) (prepared according to procedure described in J. Med. Chem. 2008; 51 , 5, 1145-1149), in 2, 6-lutidine (10 ml.) was added tosylchloride (2.3g, 12.25 mmole) at 0 ⁰ C and stirred at room temperature for 6 h. The reaction mixture was diluted with water (50 ml_), extracted with EtOAc (2X50 ml_), and washed with 2N HCI and brine. The crude product obtained after the removal of solvent was purified on silica gel column (1 % MeOH in DCM) to furnish toluene-4- sulfonic acid (2R, 3S, 4R, 5R, 6S)-6-[4-chloro-3- (4-ethoxy-benzyl)-phenyl]-3, 4, 5- trihydroxy-tetrahydro-pyran-2-ylmethyl ester (1.15 g).

Step II. To a solution of toluene-4-sulfonic acid (2R, 3S, 4R, 5R, 6S)-6-[4-chloro-3- (4- ethoxy-benzyl)-phenyl]-3, 4, 5-trihydroxy-tetrahydro-pyran-2-ylmethyl ester (1.Og, 2.1 mmole) obtained in step I, in DMF (10 ml.) was added L-proline methyl ester hydrochloride (3.4g, 20.1 mmole) followed by triethylamine (5.8 ml_, 42.2 mmole) at 0 ⁰ C. The reaction was heated from room temperature to 80 ⁰ C for 10-14 h. The reaction mixture was concentrated, diluted with water (50 ml.) and extracted with chloroform (2X50 ml_). Organic layer was washed with 2N HCI and brine, the crude product was purified by silica gel column chromatography (1 % MeOH in DCM) to furnish the title compound (700 mg).

¹ H-NMR (400 MHz, CD ₃ OD): δ 1.34 (t, J = 6.8 Hz, 3H), 1.75-1.8 (m, 3H), 2.0-2.11 (m, 1 H), 2.45 (q, J = 8 Hz, 1 H), 2.66 (d, 1 H), 3.12-3.19 (m, 2H), 3.41 (t, J= 8.8 Hz, 1 H), 3.45- 3.55(m, 3H), 3.52 (s, 3H), 3.90-4.04 (m, 6H), 6.77 (d, J = 8.6 Hz, 2H), 7.06 (d, J = 8.8 Hz, 2H), 7.18 (d, J = 8.0 Hz, 1 H), 7.23 (s, 1 H), 7.31 (d, J = 8.0 Hz, 1 H). MS (ES) m/z 520 (M+1 )

Example 2. 1 -{(2R, 3S, 4R, 5R, 6S)-6-[4-Chloro-3- (4-ethoxy-benzyl)-phenyl]-3, 4, 5- trihydroxy-tetrahydro-pyran-2-ylmethyl}-pyrrolidine-2-carbox ylic acid. 52822

1-{(2R, 3S, 4R, 5R, 6S)-6-[4-Chloro-3- (4-ethoxy-benzyl)-phenyl]-3, 4, 5-trihydroxy- tetrahydro-pyran-2-ylmethyl}-pyrrolidine-2-carboxylic acid methyl ester (95 mg, 0.18 mmole) obtained in example 1 , in THF-MeOH-H ₂ O (3:1 :2, 5 ml.) solvent mixture was added LiOH (15 mg, 0.36 mmole) and stirred overnight at room temperature. The reaction mixture was concentrated, neutralized and extracted with chloroform (2X50 ml_). The crude product is purified by HPLC to get title compound (30 mg). 1H-NMR (400 MHz, CD ₃ OD): δ 1.35 (t, J = 6.8 Hz, 3H), 1.73-1.8 (m, 1 H), 2.0-2.11 (m, 2H), 2.38-2.40 (m, 1 H), 3.07-3.15 (m, 2H), 3.25-3.30 (m, 2H), 3.45 (t, J = 8.8 Hz, 1 H), 3.61-3.77 (m, 3H), 3.85-4.01 (m, 5H), 4.13 (d, J = 12 Hz, 1 H), 6.78 (d, J = 8.4 Hz, 2H), 7.1 (d, J = 8.4 Hz, 2H), 7.25(d, J= 6.4 Hz, 1 H), 7.28(s, 1 H), 7.34 (d, J = 8.0 Hz, 1 H). MS (ES) m/z 506 (M+1 )

Example 3. 1 -{(2R, 3S, 4R, 5R, 6S)-6-[4-Chloro-3- (4-ethoxy-benzyl)-phenyl]-3, 4, 5- trihydroxy-tetrahydro-pyran-2-ylmethyl}-pyrrolidine-2-carbox amide

1-{(2R, 3S, 4R, 5R, 6S)-6-[4-Chloro-3-(4-ethoxy-benzyl)-phenyl]-3, 4, 5-trihydroxy- tetrahydro-pyran-2-ylmethyl}-pyrrolidine-2-carboxylic acid methyl ester (100 mg, 0.19 mmole) obtained in example 1 , in 2M methanolic ammonia (5 mL) was heated in sealed tube at 80 ⁰ C for overnight. The reaction mixture was concentrated to get crude material, which was further purified by HPLC to furnish the title compound (80 mg). 1H-NMR (400 MHz, CD ₃ OD): δ 1.38 (t, J = 6.8 Hz, 3H), 1.70-1.83 (m, 3H), 2.10-2.16 (m, IH), 2.49-2.58 (m, IH), 2.72 (dd, J = 7.6 & 9.2Hz, IH), 3.12-3.17 (m, 2H), 3.23-3.33 (m, 3H), 3.44 (t, J= 8.8 Hz, 2H), 3.99-4.08 (m, 5H), 6.83 (d, J = 8.4 Hz, 2H), 7.12 (d, J = 52822

8.8 Hz, 2H), 7.25 (dd, J= 8.0 & 1.6 Hz, IH), 7.29 (s, IH), 7.37 (d, J = 8.0 Hz, IH). MS (ES) m/z 505 (M+ 1).

Example 4. (S)-1 -{(2R, 3S, 4R, 5R, 6S)-6-[4-Chloro-3- (4-ethoxy-benzyl)-phenyl]-3, 4,

5-trihydroxytetrahydro-pyran-2-ylmethyl}-pyrrolidine-2-ca rboxylic acidmethylamide

The title compound was prepared in an analogous procedure as described in example 3. ¹ H-NMR (400 MHz, CD ₃ OD): δ 1.35 (t, J = 6.8 Hz, 3H), 1.6-1.758 (m, 3H), 2.0-2.15 (m, 2H), 2.45 (s, 3H), 2.72 (dd, J =7.6& 13.2 Hz 1 H), 3.00 (dd, J= 16.8 & 13.2 Hz, 1 H),3.10 (dd, J= 4 & 10 Hz, 1 H), 3.10-3.31 (m, 3H), 3.33 (t , J = 8.8 Hz, 2H), 3.9-4.03 (m, 5H), 6.80 (d, J = 8.4 Hz, 2H), 7.09 (d, J = 8.4 Hz, 2H), 7.22 (d,J= 7.6 Hz, 1 H), 7.244(s, 1 H) 7.37 (d, J = 8.0 Hz, 1 H). MS (ES) m/z 519 (M+1 )

Example 5. (S)-1 -{(2R, 3S, 4R, 5R, 6S)-6-[4-Chloro-3- (4-ethoxy-benzyl)-phenyl]-3, 4, 5 -trihydroxy-tetrahydro-pyran-2-ylmethyl}-pyrrolidin-2-yl)-py rrolidin-1-yl methanone

The title compound was prepared in an analogous procedure as described in example 3. ¹ H-NMR (400 MHz, CD ₃ OD): δ 1.30 (m, 2H), 1.35 (t, J = 6.8 Hz, 3H), 1.44-2.16 (m, 10H), 2.61 (m , 1 H), 2.81 (dd, J = 7.6 & 13.6 Hz, 1 H), 2.95-3.10 (m, 1 H), 3.13-3.30 (m , 2H), 3.4 (t, J = 8.8 Hz, 2H), 3.5-3.66 (m, 2H), 3.9-4.08 (m, 5H), 6.8 (d, J = 8.4 Hz, 2H), 7.11 (d, J = 8.4 Hz, 2H), 7.19 (dd, J= 8 & 2.0 Hz, 1 H), 7.24 (d, J= 1.6 Hz, 1 H), 7.36 (d, J = 8.0 Hz, 1 H). MS (ES) m/z 559 (M+1 ). 52822

Example 6. (2S, 3R, 4R, 5S, 6R)-2-[4-Chloro-3- (4-ethoxy-benzyl)-phenyl]-6- ((S)-2- hydroxymethyl-pyrrolidin-1 -ylmethyl)-tetrahydro-pyran-3, 4, 5-triol.

To the mixture of 1-{(2R, 3S, 4R, 5R, 6S)-6-[4-chloro-3- (4-ethoxy-benzyl)-phenyl]-3, 4, δ-trihydroxy-tetrahydro-pyran^-ylmethylj-pyrrolidine^-carbo xylic acid methyl ester (150 mg, 0.29 mmole) in THF-Water-MeOH (1 :1 :1 , 5 ml.) mixture was added NaBH ₄ (20 mg, 0.57 mmole) and stirred for 6 h. The reaction mixture was concentrated and purified by HPLC to furnish the title compound (70 mg).

¹ H-NMR (400 MHz, CD ₃ OD): 51.35 (t, J = 6.8 Hz, 3H), 1.70-2.16 (m, 5H), 3.22-3.30 (m, 3H), 3.42-3.50 (m, 3H), 3.60-3.63 (m, 1 H), 3.79-3.81 (m, 3H), 3.95-4.01 (m , 4H), 4.15 (d, J = 9.6 Hz, 1 H), 6.8 (d, J = 8.4 Hz, 2H), 7.09 (d, J = 8.4 Hz, 2H), 7.23 (d, J= 8.0Hz, 1 H),7.25(s, 1 H), 7.37 (d, J = 8.0 Hz, 1 H). MS (ES) m/z 492 (M+1 )

Example 7. 4-{(2R, 3S, 4R, 5R, 6S)-6-[4-Chloro-3- (4-ethoxy-benzyl)-phenyl]-3, 4, 5- trihydroxy-tetrahydro-pyran-2-ylmethyl}-piperazin-2-one.

The title compound was prepared in an analogous procedure as described in example 1. ¹ H-NMR (400 MHz, CD ₃ OD): δ 1.354 (t, J = 7.2 Hz, 3H), 2.60-2.70 (m, 2H),2.77 (t, J= 5.2Hz, 3H) 2.90-2.97(m, 1 H), 3.19- (d J = 5.6Hz, 2H), 3.23-3.34 (m, 2H), 3.42 (t, J = 8.8 Hz, 1 H), 3.50- 3.51 (m, 1 H), 3.95^.08 (m, 4H), 4.06 (d, J = 9.2 Hz, 1 H), 6.80 (d, J = 8.4 Hz, 2H), 7.08 (d, J = 8.8 Hz, 2H), 7.20 (d, J = 8.8 Hz, 1 H), 7.22(s, 1 H), 7.34 (d, J = 7.6 Hz, 1 H). MS (ES) m/z 491 (M+1 ). 52822

Example 8. 4-{(2R, 3S, 4R, 5R, 6S)-6-[4-Chloro-3- (4-ethoxy-benzyl)-phenyl]-3, 4, 5- trihydroxy-tetrahydro-pyran-2-ylmethyl}-1-methyl-piperazin-2 -one.

The title compound was prepared in an analogous procedure as described in example 1. ¹ H-NMR (400 MHz, CD ₃ OD): δ 1.35 (t, J = 7.2 Hz, 3H), 2.61- 2.68 (m, 1 H), 2.82 (t, J = 5.6 Hz, 2H), 2.90 (s, 3H), 3.19-3.30 (m, 3H), 3.41 (t, J = 8.8 Hz, 1 H), 3.45-3.53 (m, 1 H), 3.97-4.07 (m, 4H), 4.06(d, J= 8.8 Hz, 1 H), 4.60 (s, 2H), 6.80 (d, J = 8.4 Hz, 2H), 7.08 (d, J = 8.8 Hz, 2H), 7.20-7.23 (m, 3H), 7.34 (d, J = 7.6 Hz, 2H). MS (ES) m/z 505 (M+1 )

Example 9. (2S, 3R, 4R, 5S, 6R)-2-[4-Chloro-3- (4-ethoxy-benzyl)-phenyl]-6- (5- hydroxymethyl-[1, 2, 3]triazol-1-ylmethyl)-tetrahydro-pyran-3, 4, 5-triol. Example 10 (2S, 3R, 4R, 5S, 6R)-2-[4-Chloro-3- (4-ethoxy-benzyl)-phenyl]-6- (4- hydroxymethyl-[1, 2, 3]triazol-1-ylmethyl)-tetrahydro-pyran-3, 4, 5-triol.

Step I: To a solution of toluene-4-sulfonic acid (2R, 3S, 4R, 5R, 6S)-6-[4-chloro-3- (4- ethoxy-benzyl)-phenyl]-3, 4, 5-trihydroxy-tetrahydro-pyran-2-ylmethyl ester (1.Og, 17 mmole) in DMF (10 ml.) was added catalytic amount of tetrabutylammonium iodide (30 mg) and sodium azide (660 mg, 86 mmole) at ambient temperature and heated at 60 ⁰ C for 6h. The reaction mixture was concentrated, diluted with water (30 ml.) and extracted with chloroform (2X30 ml_). The organic layer was washed with brine and concentrated to obtain a crude product which was purified by silica gel column chromatography (1 % MeOH in DCM) to furnish (2R, 3S, 4R, 5R, 6S)-2-Azidomethyl-6-[4-chloro-3- (4-ethoxy- benzyl)-phenyl]-tetrahydro-pyran-3, 4, 5-triol (1.Og). 52822

Step II: (2R, 3S, 4R, 5R, 6S)-2-Azidomethyl-6-[4-chloro-3- (4-ethoxy-benzyl)-phenyl]- tetrahydro-pyran-3, 4, 5-triol (100 mg, 0.23 mmole) obtained in step I above, in dry toluene (3.0 ml_), propargyl alcohol (0.12gm, 2.3 mmole) was added and the reaction mixture was heated at 80 ⁰ C overnight. The reaction mixture concentrated and the crude product was purified HPLC to furnish the title compounds.

Example 9. ¹ H-NMR (400 MHz, CD ₃ OD): (For B) δ 1.35 (t, J = 6.8 Hz, 3H), 3.180-3.30 (m, 2H), 3.45 (t, J = 8.8 Hz, 1 H), 3.70-3.73 (m, 1 H), 3.95-4.07 (m, 5H), 4.47-4.88 (m, 4H), 6.81 (d, J = 8.4 Hz, 2H), 7.05 (d, J = 8.4 Hz, 2H), 7.12 (d, J = 9.2 Hz, 2H), 7.33 (d, J = 8.0 Hz, 1 H) , 7.53 (s, 1 H). MS (ES) m/z 490 (M+1 ).

Example 10. ¹ H-NMR (400 MHz, CD ₃ OD): (For A) δ 1.35 (t, J = 6.8 Hz, 3H), 3.18-3.30 (m, 2H), 3.45 (t, J = 8.8 Hz, 1 H), 3.70 (m, 1 H), 3.97-4.01 (m, 5H), 4.48-4.63 (m, 4H), 6.81 (d, J = 8.4 Hz, 2H), 7.09 (d, J= 8.0 Hz, 2H), 7.19 (d, J = 8.0 Hz, 1 H), 7.22 (s, 1 H), 7.34 (d, J= 8.0Hz, 1 H), 7.76 (s, 1 H). MS (ES) m/z 490 (M+1 ).

Example 11. 1-{(2R, 3S, 4R, 5R, 6S)-6-[4-Chloro-3- (4-ethoxy-benzyl)-phenyl]-3, 4, 5- trihydroxy-tetrahydro-pyran-2-ylmethyl}-1 H-[1 , 2, 3]triazole-4-carboxylic acid methyl ester.

The title compound was prepared in an analogous procedure as described in example 9. ¹ H-NMR (400 MHz, CD ₃ OD): δ 1.35 (t, J = 6.8 Hz, 3H), 3.13-3.25 (m, 3H), 3.46 (t, J = 8.8 Hz, 1 H), 3.72-3.76 (m, 1 H), 3.88 (s, 3H), 3.95-4.00 (m, 3H), 4.10 (d, J = 8.4Hz, 1 H) 4.67 (dd, J = 4.8 & 14.4 Hz, 2H), 6.81 (d, J = 8.4 Hz, 2H), 7.07 (d, J = 8.4 Hz, 2H), 7.15 (dd, J= 8.0 & 2.0 Hz, 1 H), 7.20 (s, 1 H), 7.33 (d, J = 8.0 Hz, 1 H) , 8.36 (s, 1 H). MS (ES) m/z 568 (M+1 ).

Example 12. 1-{(2R,3S,4R,5R,6S)-6-[4-Chloro-3-(4-ethoxy-benzyl)-phenyl]- 3,4,5- trihydroxy-tetrahydro-pyran-2-ylmethyl}-1 H-[1 ,2,3]triazole-4-carboxylic acid amide. 52822

To a solution of 1-{(2R,3S,4R,5R,6S)-6-[4-Chloro-3-(4-ethoxy-benzyl)-phenyl]- 3,4,5- trihydroxy-tetrahydro-pyran-2-ylmethyl}-1 H-[1 ,2,3]triazole-4-carboxylicacid methyl ester (160mg, 0.30 mmole) and catalytic amount of NaCN (1 mg) in 2M methanolic ammonia (5 ml.) was heated in sealed tube at 80 ⁰ C for 50 h. The reaction mixture was concentrated and purified by HPLC to furnish the title compound (7 mg). 1H-NMR (400 MHz, CD ₃ OD): δ 1.35 (t, J= 6.8 Hz, 3H), 3.195(q, J= 9.2Hz, 3H), 3.44(t, J= 8.8 Hz, 1 H), 3.69-3.71 (m,1 H),3.93-4.00(m, 4H), 4.07(d, J= 9.6Hz, 1 H), 4.58-4.65(t, J= 6.8Hz, 1 H) 6.79(d, J= 8.8 Hz, 2H), 7.07(d, J = 8.8 Hz, 2H), 7.14(d, J=2.0Hz, 1 H),7.17(s,1 H), 7.32(d, J=8.0 Hz, 1 H), 8.22(s,1 H). MS (ES) m/z 503 (M+1).

Example 13. 1-{(2R, 3S, 4R, 5R, 6S)-6-[4-Chloro-3- (4-ethoxy-benzyl)-phenyl]-3, 4, 5- trihydroxy-tetrahydro-pyran-2-ylmethyl}-1 H-[1 , 2, 3]triazole-4-carboxylic acid.

The title compound was prepared in an analogous procedure as described in example 2. ¹ H-NMR (400 MHz, CD ₃ OD): δ 1.34 (t, J = 6.8 Hz, 3H), 3.16-3.22 (m, 2H), 3.45 (t, J = 8.8 Hz, 1 H), 3.71 (t, J = 6.8 Hz, 1 H), 3.97-4.04 (m, 4H), 4.089(d, J= 9.2 Hz, 1 H), 4.56- 4.60 (m, 2H), 6.81 (d, J = 8.4 Hz, 2H), 7.07 (d, J = 8.4 Hz, 2H), 7.20 (d J = 6.8 Hz, 2H), 7.33 (d, J = 8.0 Hz, 1 H) , 8.06 (s, 1 H). MS (ES) m/z 504 (M+1 ).

Example 14. 1-{(2R, 3S, 4R, 5R, 6S)-6-[4-Chloro-3- (4-ethoxy-benzyl)-phenyl]-3, 4, 5- trihydroxy-tetrahydro-pyran-2-ylmethyl}-piperidine-4-carboxy lic acid ethyl ester. 52822

The title compound was prepared in an analogous procedure as described in example 1. ¹ H-NMR (400 MHz, CD ₃ OD): δ 1.24 (t, J = 7.2Hz, 3H), 1.35 (t, J = 7.2 Hz, 3H), 1.69 (m, 2H), 1.849 (m, 2H), 2.22-2.36 (m, 2H), 2.62-2.63 (m, 1 H), 2.90-3.08 (m, 4H), 3.20-3.26 (m, 2H), 3.42 (t, J = 8.8 Hz, 1 H), 3.53 (m, 1 H), 3.94-4.05 (m, 4H), 4.06-4.13 (m, 3H), 6.80 (d, J = 8.4 Hz, 2H), 7.08 (d, J = 8.8 Hz, 2H), 7.22 (dd, J= 6.0 & 2.0 Hz, 1 H), 7.23(s, 1 H) 7.34 (d, J = 7.6 Hz, 1 H). MS (ES) m/z 548 (M+1 ).

Example 15. 1-{(2R, 3S, 4R, 5R, 6S)-6-[4-Chloro-3- (4-ethoxy-benzyl)-phenyl]-3, 4, 5- trihydroxy-tetrahydro-pyran-2-ylmethyl}-piperidine-4-carboxy lic acid.

The title compound was prepared in an analogous procedure as described in example 2. ¹ H-NMR (400 MHz, CD ₃ OD): δ 1.35 (t, J = 7.2 Hz, 3H), 1.85-2.0 (m, 4H), 2.40-2.50 (m, 1 H), 3.02-3.1 (m, 2H), 3.20-3.27 (m, 2H), 3.35-3.51 (m, 5H), 3.76 (t, J = 8.0Hz, 1 H), 3.95-4.02 (m, 4H), 4.19 (d, J = 9.6Hz, 1 H), 6.80 (d, J = 8.4 Hz, 2H), 7.08 (d, J = 8.8 Hz, 2H), 7.24 (d, J = 2.0Hz, 1 H), 7.26(s, 1 H), 7.38 (d, J = 7.6 Hz, 1 H). MS (ES) m/z 520 (M+1 ).

Example 16. 1-(2S, 3R, 4R, 5S, 6R)-2-[4-Chloro-3- (4-ethoxy-benzyl)-phenyl]-6- (4- hydroxymethyl-piperidin-1 -ylmethyl)-tetrahydro-pyran-3, 4, 5-triol.

52822

The title compound was prepared in an analogous procedure as described in example 6. ¹ H-NMR (400 MHz, CD ₃ OD): δ 1.35 (t, J = 7.2 Hz, 3H), 1.40-1.44 (m, 2H), 1.61.1.72 (m, 1 H), 1.82-1.95 (m, 2H), 2.90 (m, 2H), 3.14-3.24 (m, 2H), 3.34-3.50 (m, 7H), 3.77 (t, J = 8.0 Hz , 1 H), 3.95-4.0 (m, 4H), 4.18 (d, J = 9.6 Hz, 1 H), 6.80 (d, J = 8.4 Hz, 2H), 7.08 (d, J = 8.8 Hz, 2H), 7.23 (d, J = 8.4Hz, 1 H), 7.26(s, 1 H), 7.38 (d, J = 7.6 Hz, 1 H). MS (ES) m/z 506 (M+1 ).

Example 17. 1-{(2R, 3S, 4R, 5R, 6S)-6-[4-Chloro-3- (4-ethoxy-benzyl)-phenyl]-3, 4, 5- trihydroxy-tetrahydro-pyran-2-ylmethyl}-piperidine-3-carboxy lic acid ethyl ester.

The title compound was prepared in an analogous procedure as described in example 1. ¹ H-NMR (400 MHz, CD ₃ OD): δ 1.14 (t, J = 7.2Hz, 3H), 1.35 (t, J = 7.2 Hz, 3H), 1.52-1.65 (m, 2H), 1.75-181 (m, 1 H), 1.95-1.97 (m, 1 H), 2.62-2.67 (m, 5H), 2.90-3.26 (m, 2H), 3.47 (t, J = 9.2Hz, 1 H), 3.67 (m, 2H), 3.97-4.12 (m, 8H), 6.80 (d, J = 8.4 Hz, 2H), 7.08 (d, J = 8.8 Hz, 2H), 7.23 (dd, J= 8.4 Hz, 2.2 Hz, 1 H),7.33(d, J= 3.6Hz, 1 H), 7.34 (d, J = 7.6 Hz, 1 H). MS (ES) m/z 548 (M+1 ).

Example 18. 1-{(2R, 3S, 4R, 5R, 6S)-6-[4-Chloro-3- (4-ethoxy-benzyl)-phenyl]-3, 4, 5- trihydroxy-tetrahydro-pyran-2-ylmethyl}-piperidine-3-carboxy lic acid.

The title compound was prepared in an analogous procedure as described in example 2. ¹ H-NMR (400 MHz, CD ₃ OD): δ 1.35 (t, J = 7.2 Hz, 3H), 1.72-1.88 (m, 4H), 2.65 (m, 2H), 3.22-3.26 (m, 3H), 3.33-3.58 (m, 2H), 3.44-3.51 (m, 3H), 3.82 (m, 1 H), 3.95-4.02 (m, 4H), 4.22 (d, J = 9.6Hz, 1 H), 6.80 (d, J = 8.4 Hz, 2H), 7.08 (d, J = 8.8 Hz, 2H), 7.26 (m, 2H), 7.36 (d, J = 7.6 Hz, 1 H). MS (ES) m/z 520 (M+1 ). 52822

Example 19. (2S, 3R, 4R, 5S, 6R)-2-[4-Chloro-3- (4-ethoxy-benzyl)-phenyl]-6- (3- hydroxymethyl-piperidin-1 -ylmethyl)-tetrahydro-pyran-3, 4, 5-triol.

The title compound was prepared in an analogous procedure as described in example 6. ¹ H-NMR (400 MHz, CD ₃ OD): δ 1.35 (t, J = 7.2 Hz, 3H), 1.70-1.92 (m, 4H), 2.65-2.78 (m, 3H), 3.16-3.28 (m, 2H), 3.30-3.52 (m, 7H), 3.78 (t, J = 8.8Hz, 1 H), 3.95^.02 (m, 4H), 4.18 (d, J = 9.6 Hz, 1 H), 6.80 (d, J = 8.4 Hz, 2H), 7.08 (d, J = 8.8 Hz, 2H), 7.25 (d, J = 8.4Hz, 1 H), 7.27(s, 1 H), 7.38 (d, J = 7.6 Hz, 1 H). MS (ES) m/z 506 (M+1 )

Example 20. (2S, 3R, 4R, 5S, 6R)-2-[4-Chloro-3- (4-ethoxy-benzyl)-phenyl]-6- (3- hydroxy-piperidin-1 -ylmethyl)-tetrahydro-pyran-3, 4, 5-triol.

The title compound was prepared in an analogous procedure as described in example 1. ¹ H-NMR (400 MHz, CD ₃ OD): δ 1.36 (t, J = 7.2 Hz, 3H), 1.60-1.80 (m, 3H), 1.97-2.03 (m, 1 H), 3.07-3.24 (m, 4H), 3.41-3.48 (m, 3H), 3.78 (m, 2H), 3.96-4.02 (m, 6H), 4.17 (dd, J = 6.0 & 9.2 Hz, 1 H), 6.80 (d, J = 8.4 Hz, 2H), 7.09 (d, J = 8.8 Hz, 2H), 7.25 (d, J= 8.0Hz, 1 H), 7.34 (d, J = 8.4 Hz, 1 H), 7.36 (d, J = 7.6 Hz, 1 H). MS (ES) m/z 492 (M+1 ).

Example 21 : (2S, 3R, 4R, 5S, 6R)-2-[4-Chloro-3- (4-ethoxy-benzyl)-phenyl]-6- (4- hydroxy-piperidin-1 -ylmethyl)-tetrahydro-pyran-3, 4, 5-triol. 52822

The title compound was prepared in an analogous procedure as described in example 1. ¹ H-NMR (400 MHz, CD ₃ OD): δ 1.36 (t, J = 7.2 Hz, 3H), 1.65-1.79 (m, 2H), 1.90-2.05 (m, 2H), 3.07-3.27 (m, 6H), 3.42-3.48 (m, 2H), 3.77-3.87 (m, 2H), 3.96-4.02 (m, 5H), 4.19 (d, J = 9.60 Hz, 1 H), 6.80 (d, J = 8.8 Hz, 2H), 7.09 (d, J = 8.8 Hz, 2H), 7.24(d, J= 2.0Hz, 1 H), 7.26 (s, 1 H ), 7.37 (d, J = 7.6 Hz, 1 H). MS (ES) m/z 492 (M+1 ).

Example 22. (2S, 3R, 4R, 5S, 6R)-2-[4-Chloro-3- (4-ethoxy-benzyl)-phenyl]-6- ((R)-3- hydroxy-pyrrolidin-1-ylmethyl)-tetrahydro-pyran-3, 4, 5-triol.

The title compound was prepared in an analogous procedure as described in example 1. ¹ H-NMR (400 MHz, CD ₃ OD): δ 1.35 (t, J = 7.2 Hz, 3H), 1.92-2.02 (m, 1 H), 2.10-2.20 (m, 1 H), 3.21-3.43 (m, 4H), 3.40-3.48 (m, 3H), 3.57(d, J= 11.6 Hz, 1 H), 3.71 (t J= 7.5 Hz, 1 H), 3.95-4.02 (m, 5H), 4.17 (d, J = 9.2Hz, 1 H), 4.4 (m, 1 H), 6.80 (d, J = 8.8 Hz, 2H), 7.09 (d, J = 8.8 Hz, 2H), 7.24(d, J= 8.4Hz, 1 H), 7.27 (s, 1 H), 7.37 (d, J = 7.6 Hz, 1 H). MS (ES) m/z 492 (M+1 ).

Example 23. (2S,4R)-1 -{(2R,3S,4R,5R,6S)-6-[4-Chloro-3-(4-ethoxy-benzyl)-phenyl]- 3A5-trihydroxy-tetrahydroφyran-2-ylmethyl}^-hydroxyφyrroli dine-2-carboxylic acid amide. 52822

The title compound was prepared in an analogous procedure as described in example 3. ¹ H-NMR (400 MHz, CD ₃ OD): δ 1.33 (t, J= 7.2 Hz, 3H), 1.91-1.93 (m, 1 H), 2.13-2.14 (m, 1 H), 2.70(dd, J= 8.0 & 3.2Hz, 1 H), 2.90(dd, J= 8.4 & 13.2 Hz, 1 H), 3.23 (t, J= 10.8Hz, 2H), 3.40(t, J= 8.8Hz,1 H), 3.50(dd, J= 5.2 & 11.6 Hz, 2H), 3.64(t, J= 10.8Hz, 1 H), 3.94- 4.06 (m, 5H),4.29(m,1 H), 6.79 (d, J= 8.4, 2H), 7.08 (d, J = 8.4 Hz, 2H), 7.20 (dd, J= 6.4 & 1.6Hz 1 H),7.25 (s, 1 H), 7.32 (d, J= 8.0Hz, 2H). MS (ES) m/z 521 (M+1 ).

Example 24. (R)-1 -{(2R,3S,4R,5R,6S)-6-[4-Chloro-3-(4-ethoxy-benzyl)-phenyl]-3 ,4,5- trihydroxy-tetrahydro-pyran-2-ylmethyl}-pyrrolidine-2-carbox amide.

The title compound was prepared in an analogous procedure as described in example 3. ¹ H-NMR (400 MHz, CD ₃ OD): δ 1.35 (t, J= 6.8 Hz, 3H), 1.77-1.836 (m, 3H), 2.10-2.24 (m, 1 H), 2.62(m, 1 H), 2.92-2.99(m, 1 H), 3.10-3.16 (m, 2H),3.24(t, J= 9.2Hz,1 H), 3.37- 3.34(m,3H), 3.55(t, J= 9.2Hz, 1 H), 3.96-4.05 (m, 5H), 6.81 (dd, J= 8.4 & 4.4 Hz, 2H), 7.10(d, J= 8.8Hz, 2H), 7.19-7.27(m, 2H), 7.35(d, J= 8.0 Hz, 1 H). MS (ES) m/z 505 (M+1 ).

Example 25. 1 -{(2R,3S,4R,5R,6S)-6-[4-Chloro-3-(4-ethoxy-benzyl)-phenyl]-3 ,4,5- trihydroxy-tetrahydro-pyran-2-ylmethyl}-1 H-pyrazole-4-carboxylic acid ethyl ester. 52822

To a solution of 1 H- pyrazole-4-carboxyllic acid ethyl ester (76 mg, 0.54 mmole) in DMF (2 ml.) cesium carbonate (337 mg, 1.0 mmole) was added. After heating the reaction mixture for 1 h at 60 ⁰ C, toluene-4-sulfonic acid (2R,3S,4R,5R,6S)-6-[4-chloro-3-(4- ethoxy-benzyl)-phenyl]-3, 4, 5-trihydroxy-tetrahydro-pyran-2-ylmethylester obtained in step I of example 1 , (300 mg, 0.51 mmole) was added and heating was continued overnight. The reaction mixture was diluted with water (20 ml.) and extracted with ethyl acetate (2X50 ml_). Solvent was removed and the crude material was purified by HPLC to furnish the title compound.

¹ H-NMR (400 MHz, CD ₃ OD): δ 1.28 (t, J = 6.8 Hz, 3H), 1.35 (t, J = 6.8 Hz, 3H), 3.14- 3.23 (m, 2H), 3.45 (t, J = 8.8 Hz, 1 H), 3.66-3.67 (m, 1 H), 3.95-4.00 (m, 4H), 4.07 (d, J = 9.6Hz, 1 H), 4.22 (q, J = 7.2Hz, 2H), 4.35 (m, 1 H), 4.58 (m, 1 H), 6.81 (d, J = 8.4 Hz, 2H), 7.07 (d, J = 8.4 Hz, 2H), 7.18 (m, 2H), 7.33 (d, J = 8.0 Hz, 1 H) , 7.85 (s, 1 H), 8.07 (s, 1 H). MS (ES) m/z 531 (M+1 ).

Example 26. 1 -{(2R,3S,4R,5R,6S)-6-[4-Chloro-3-(4-ethoxy-benzyl)-phenyl]-3 ,4,5- trihydroxy-tetrahydro-pyran-2-ylmethyl}-1 H-pyrazole-4-carboxylic acid.

The title compound was prepared in an analogous procedure as described in example 2. ¹ H-NMR (400 MHz, CD ₃ OD): δ 1.35 (t, J = 6.8 Hz, 3H), 3.14-3.23 (m, 2H), 3.45 (t, J = 8.8 Hz, 1 H), 3.66-3.67 (m, 1 H), 3.95-4.00 (m, 4H), 4.07 (d, J = 9.6Hz, 1 H), 4.35 (m, 1 H), 4.58(m, 1 H), 6.81 (d, J = 8.4 Hz, 2H), 7.07 (d, J = 8.4 Hz, 2H), 7.18 (m, 2H), 7.33 (d, J = 8.0 Hz, 1 H) , 7.85 (s, 1 H), 8.04 (s, 1 H). MS (ES) m/z 503 (M+1 ). 52822

Example 27. 2-{(2R,3S,4R,5R,6S)-6-[4-Chloro-3-(4-ethoxy-benzyl)-phenyl]- 3,4,5- trihydroxy-tetrahydro-pyran-2-ylmethyl}-2H-pyrazole-3-carbox ylic acid ethyl ester.

The title compound was prepared in an analogous procedure as described in example

25.

¹ H-NMR (400 MHz, CD ₃ OD): δ 1.36 (t, 6H), 3.10-3.14 (m, 2H), 3.45 (t, J = 8.8 Hz, 1 H),

3.64-3.66 (m, 1 H), 3.97-4.01 (m, 4H), 4.07 (d, J = 9.2Hz, 1 H), 4.34 (q, J = 7.2Hz, 2H),

4.40 (m, 1 H), 4.57 (m, 1 H), 6.70 (d, J = 2.4 Hz, 1 H), 6.81 (d, J = 8.4 Hz, 2H), 7.07 (d, J =

8.4 Hz, 2H), 7.16 (m, 2H), 7.33 (d, J = 8.4 Hz, 1 H) , 7.49 (d, J = 2.4 Hz, 1 H). MS (ES) m/z 531 (M+1 ).

Example 28. 2-{(2R,3S,4R,5R,6S)-6-[4-Chloro-3-(4-ethoxy-benzyl)-phenyl]- 3,4,5- trihydroxy-tetrahydro-pyran-2-ylmethyl}-2H-pyrazole-3-carbox ylic acid.

The title compound was prepared in an analogous procedure as described in example 2. ¹ H-NMR (400 MHz, CD ₃ OD): δ 1.37 (t, 3H), 3.08-3.13 (t, J = 9.2 Hz, 2H), 3.44 (t, J = 8.8 Hz, 1 H), 3.64-3.66 (m, 1 H), 3.97^.01 (m, 4H), 4.07 (d, J = 9.2Hz, 1 H), 4.45 (m, 1 H), 4.55 (m, 1 H), 6.70 (d, J = 2.4 Hz, 1 H), 6.81 (d, J = 8.4 Hz, 2H), 7.07 (d, J = 8.4 Hz, 2H), 7.16 (m, 2H), 7.33 (d, J = 8.4 Hz, 1 H) , 7.47 (d, J = 2.4 Hz, 1 H). MS (ES) m/z 503 (M+1).

Example 29. 2-{(2R,3S,4R,5R,6S)-6-[4-Chloro-3-(4-ethoxy-benzyl)-phenyl]- 3,4,5- trihydroxy-tetrahydro-pyran-2-ylmethyl}-2H-pyrazole-3-carbox ylic acid amide. 52822

To a solution of 2-{(2R,3S,4R,5R,6S)-6-[4-chloro-3-(4-ethoxy-benzyl)-phenyl]- 3,4,5-trih ydroxy-tetrahydro-pyran-2-ylmethyl}-2H-pyrazole-3-carboxylic acid ethyl ester obtained in example 27, (30mg, 0.056 mmole) and catalytic amount of NaCN in 2M methanolic ammonia (10 ml.) was heated in sealed tube at 80 ⁰ C for 50 h. The reaction mixture was concentrated and purified by HPLC to furnish the title compound (25 mg). 1H-NMR (400 MHz, CD ₃ OD): δ 1.36 (t, J = 6.8 Hz, 3H), 3.10-3.17 (q, J = 9.2 Hz, 2H),

3.44 (t, J = 8.8 Hz, 1 H), 3.64-3.66 (m, 1 H), 3.97-4.02 (m, 4H), 4.07 (d, J = 9.2Hz, 1 H),

4.45 (m, 1 H), 4.55 (m, 1 H), 6.69 (d, J = 2.4 Hz, 1 H), 6.82 (d, J = 8.4 Hz, 2H), 7.08 (d, J = 8.4 Hz, 2H), 7.16 (m, 2H), 7.33 (d, J = 8.4 Hz, 1 H) , 7.46 (d, J = 2.4 Hz, 1 H). MS (ES) m/z 502 (M+1 ).

Example 30. (S)-1 -{(2R,3S,4R,5R,6S)-6-[4-Chloro-3-(4-ethoxy-benzyl)-phenyl]-3 ,4,5- trihydroxy-tetrahydro-pyran-2-ylmethyl}-2-methyl-pyrrolidine -2-carboxylic acid methyl ester.

The title compound was prepared in an analogous procedure as described for example

1.

¹ H-NMR (400 MHz, CD ₃ OD): δ 1.32 (m, 6H), 1.79-1.86 (m, 3H), 2.08-2.11 (m, 1 H), 2.85

(q, J = 7.2 Hz, 1 H), 3.01 (m, 1 H), 3.09-3.13 (m, 2H), 3.18-3.20 (m, 1 H), 3.32 (d, J = 9.2

Hz, 1 H), 3.41 (d, J = 9.2 Hz, 1 H), 3.48 (m, 1 H), 3.7 (s, 3H), 3.94-3.99 (m, 4H), 4.05 (d, J

= 9.6 Hz, 1 H), 6.77 (d, J = 8.4 Hz, 2H), 7.06 (d, J = 8.4 Hz, 2H), 7.17-7.24 (m, 2H), 7.32

(d, J = 8.4 Hz, 1 H). MS (ES) m/z 534 (M+1 ). 52822

Example 31. (2S,4S)-1 -{(2R,3S,4R,5R,6S)-6-[4-Chloro-3-(4-ethoxy-benzyl)-phenyl]- 3A5-trihydroxy-tetrahydroφyran-2-ylmethyl}^-fluoroφyrrolid ine-2-carboxylic acid amide.

The title compound was prepared in an analogous procedures as described for example

2.

¹ H-NMR (400 MHz, CD ₃ OD): δ 1.35 (t, J = 6.8 Hz, 3H), 2.05 (m, 1 H), 2.57 (m, 2H), 2.66

(m, 2H), 3.25 (m, 3H), 3.46 (m, 3H), 3.99 (m, 5H), 5.05 (dm, J= 53.6 Hz, 1 H), 6.81 (d, J

= 8.4 Hz, 2H), 7.09 (d, J = 8.4 Hz, 2H), 7.12-7.27 (m, 2H), 7.34 (d, J = 8.4 Hz, 1 H). MS

(ES) m/z 523 (M+1).

Example 32. (S)-1 -{(2S,3S,4R,5R,6S)-6-[4-Chloro-3-(4-ethoxy-benzyl)-phenyl]-3 ,4,5- trihydroxy-tetrahydro-pyran^-carbony^-pyrrolidine^-carboxyli c acid amide.

Step I. To a solution of (2S,3R,4R,5S,6R)-2-[4-chloro-3-(4-ethoxy-benzyl)-phenyl]-6- hydroxymethyl-tetrahydro-pyran-3,4,5-triol (2 g, 4.9 mmole), prepared according to procedure described in J. Med. Chem. 2008; 51 , 5, 1145-1149, in a mixture of THF (50 ml.) and saturated aq. NaHCO ₃ (50 ml.) was added 2,2,6,6-tetramethylpiperidine-1-oxyl 52822

radical (TEMPO) (153 mg, 0.97 mmole) and KBr (116 mg, 0.97 mmole) at 0 ⁰ C followed by addition of sodium hypochlorite (50 ml.) drop-wise during 15 min. and then stirred for

1 h. at the same temperature. The reaction mixture was diluted with water (50 ml_), and pH was adjusted to 2-3 using 2N HCI and extracted with EtOAc (2X200ml_), washed with brine. The crude product obtained after the removal of solvent to furnish

(2S,3S,4R,5R,6S)-6-[4-chloro-3-(4-ethoxy-benzyl)-phenyl]- 3,4,5-trihydroxy-tetrahydro- pyran-2-carboxylic acid.

Step II. To a solution of (2S,3S,4R,5R,6S)-6-[4-Chloro-3-(4-ethoxy-benzyl)-phenyl]-3,4 ,5- trihydroxy-tetrahydro-pyran-2-carboxylic acid (200 mg, 0.47 mmole) in DMF (1.5 ml_), were added L-proline methyl ester hydrochloride (90 mg, 0.56 mmole), HOBt (68 mg,

0.47 mmole) and N-methylmorpholine (NMM) (0.2 ml, 1.88 mmole), and EDCI (180 mg,

0.94 mmole) and stirred overnight The reaction mixture was diluted with water (10 ml_), extarcted with EtOAc (2X 20 ml_), and washed with brine. The crude product obtained after the removal of solvent to furnish (S)-1-{(2S,3S,4R,5R,6S)-6-[4-Chloro-3-(4-ethoxy- benzyO-phenylj-S^.δ-trihydroxytetrahydro-pyran^-carbonylJ-p yrrolidine^-carboxylic acid methyl ester and used as such for next step.

Step III. The title compound was prepared in an analogous procedure as described in example 3.

¹ H-NMR (400 MHz, CD ₃ OD): δ 1.38 (t, J= 6.8 Hz, 3H), 1.90-2.05 (m, 3H), 2.2-2.30 (m,

IH), 3.30-3.41(m, IH), 3.60 (t, J= 9.6 Hz, IH), 3.60-3.71 (m,lH), 3.78 (t, J= 9.2 Hz, IH),

3.81-3.88 (m, IH), 3.98 (m, 4H), 4.30 (dd, J = 9.6 & 1.2Hz, 2H), 4.49(dd, J = 7.6, 3.6 Hz,

IH), 6.82 (d, J= 8.80Hz, 2H), 7.11 (d, J = 8.4 Hz, 2H), 7.27-7.38 (m, 3H).

MS (ES) m/z 519 (M+l).

Example 33. 1 -{(2R,3S,4R,5R,6S)-6-[4-Chloro-3-(4-ethoxy-benzyl)-phenyl]-3 ,4,5- trihydroxy-tetrahydro-pyran-2-ylmethyl}-3-ethyl-urea.

Step I. To a solution of (2R,3S,4R,5R,6S)-2-azidomethyl-6-[4-chloro-3-(4-ethoxy-benzy l)- phenyl]-tetrahydro-pyran-3,4,5-triol (850 mg, 1.90 mmole) prepared according to procedure as described in example 9, in THF:water (4:1 , 15 ml.) was added triphenyl phosphine (1.6 g, 5.8 mmole) at room temperature and stirred overnight. The reaction mixture was diluted with water and extracted with EtOAc. The crude product obtained after the removal of solvent was purified on silica gel column (3% MeOH in DCM) to furnish (2R,3S,4R,5R,6S)-2-aminomethyl-6-[4-chloro-3-(4-ethoxy-benzy l)-phenyl]- tetrahydro-pyran-3,4,5-triol (500 mg).

Step II. To a solution of (2R,3S,4R,5R,6S)-2-aminomethyl-6-[4-chloro-3-(4-ethoxy- benzyl)-phenyl]-tetrahydro-pyran-3,4,5-triol (100 mg, 0.24 mmole), prepared according to procedure described in example 9, in CHCI ₃ (5ml) was added ethylisocyanate (17 mg, 0.24 mmole) at 0 ⁰ C and stirred at room temperature for 1 h. The reaction mixture was diluted with water (10 ml_), extracted with EtOAc (2X20 ml_). The crude product obtained after the removal of solvent was purified by using HPLC to furnish the title compound (105 mg).

¹ H-NMR (400 MHz, CD ₃ OD): δ 1.056 (t, J = 7.6 Hz, 3H), 1.35 (t, J= 6.8 Hz, 3H), 3.11 (q, J = 7.2Hz, 2H), 3.26-3.29 (m, 3H), 3.49 (t, J = 8.8 Hz, 1 H), 3.59(d, J= 11.6 Hz, 1 H), 3.97- 4.11 (m, 4H), 4.10 (d, J = 11.6 Hz,1 H), 4.62 (s,1 H), 6.82 (d, J = 8.8 Hz, 2H), 7.10 (d, J = 8.8Hz, 2H), 7.26(dd, J= 8.4 & 2.2 Hz, 1 H), 7.29 (s, 1 H), 7.37(d, J = 8.0Hz,1 H). MS (ES) m/z 479 (M+1 ).

Example 34: N-[3-({(2R,3S,4R,5R,6S)-6-[4-Chloro-3-(4-ethoxy-benzyl)-phen yl]-3,4,5- trihydroxy-tetrahydro-pyran-2-ylmethyl}-amino)-phenyl]-aceta mide.

Step I. To a mixture of (2S, 3R, 4R, 5S, 6R)-2-[4-chloro-3-(4-ethoxy-benzyl)-phenyl]-6- hydroxymethyl-tetrahydro-pyran-3, 4, 5-triol (500 mg, 0.98 mmole) (prepared according to procedure as described in J. Med. Chem. 2008; 51 (5); 1145-1149), PPh ₃ (450 mg, 1.6 mmole) and imidazole (101 mg, 1.5 mmole) in dichloromethane (20 ml.) was added

52 52822

iodine (400 mg, 1.5 mmole) at 0 ⁰ C and the mixture was refluxed for 18 hours. The reaction mixture was diluted with water (50 ml.) and extracted with dichloromethane (2 X 200 ml_). The crude product obtained after the removal of solvent was purified using silica gel column chromatography (0.5% methanol in dichloromethane) to furnish 480 mg of (2S, 3R, 4R, 5S, 6S)-2-[4-chloro-3-(4-ethoxy-benzyl)-phenyl]-6-iodomethyl-tet rahydro- pyran-3, 4, 5-triol.

Step II. To the solution of (2S,3R,4R,5S,6S)-2-[4-chloro-3-(4-ethoxy-benzyl)-phenyl]-6- iodomethyl-tetrahydro-pyran-3,4, 5-triol (100 mg, 0.19 mmole) in N-methyl morpholine (0.1 ml_), N-(3-amino-phenyl)-acetamide (0.15 mg, 0.19 mmole) was added and the mixture was heated in sealed tube at 130 ⁰ C for 8 hours. The reaction mixture was concentrated and purified by preparative HPLC to furnish the title compound (28 mg). ¹ H-NMR (400 MHz, CD ₃ OD): δ 1.37 (t, J = 7.2 Hz, 3H), 2.09 (s, 3H), 3.20-3.31 (m, 2H), 3.37-3.54 (m ,3H), 3.61-3.64 (m, 1 H), 3.96-4.04 (m, 4H), 4.09-4.11 (d, J = 9.2 Hz, 1 H), 6.45 (d, J = 6.4 Hz, 1 H), 7.78-7.82 (m, 3H), 6.96 (s, 1 H), 7.03 (d, J = 8.0 Hz, 1 H), 7.09- 7.11 (d, J = 8.4 Hz, 2H), 7.25-7.28 (m, 2H) 7.35-7.37 (d, J = 7.6 Hz, 1 H). MS (ES+) m/z 541.1 (M+1 ).

Example 35: 3-({(2R,3S,4R,5R,6S)-6-[4-Chloro-3-(4-ethoxy-benzyl)-phenyl] -3,4,5-tri hydroxy-tetrahydro-pyran-2-ylmethyl}-amino)-N-methyl-benzami de.

Step I: To a solution of (2S,3R,4R,5S,6S)-2-[4-chloro-3-(4-ethoxy-benzyl)-phenyl]-6- iodomethyl-tetrahydro-pyran-3,4, 5-triol (50 mg, 0.09 mmole) in N-methyl morpholine (0.1 ml_), 3-amino-methyl benzoate (72 mg, 0.48 mmole) was added and the mixture was heated in sealed tube at 130 ⁰ C for 8 hours. The reaction mixture was concentrated and 52822

purified by preparative TLC to furnish 3-({(2R,3S,4R,5R,6S)-6-[4-chloro-3-(4-ethoxy- benzyl)-phenyl]-3,4,5-trihydroxy-tetrahydro-pyran-2-ylmethyl }-amino)-benzoic acid methyl ester (20 mg).

Step II. To a solution of 3-({(2R,3S,4R,5R,6S)-6-[4-chloro-3-(4-ethoxy-benzyl)-phenyl] -

3,4,5-trihydroxy-tetrahydro-pyran-2-ylmethyl}-amino)-benz oic acid methyl ester (90 mg,

0.16 mmole) in 2M methanolic methylamine (2.0 ml_), 1 ,5,7-triazo-bicycle[4,4,0] dec-5- ene (23 mg, 0.18 mmole) was added and the mixture was heated in sealed tube at 75 ⁰ C for 36 hours. The reaction mixture was concentrated and purified by preparative HPLC to furnish the title compound (29 mg).

¹ H-NMR (400 MHz, CD ₃ OD): δ 1.37 (t, J = 7.2 Hz, 3H), 2.89 (s, 3H), 3.25-3.29 (m, 2H),

3.41-3.56 (m ,3H), 3.66-3.69 (m, 1 H), 3.98^.04 (m, 4H), 4.10 (d, J = 9.2 Hz, 1 H), 6.79-

6.85 (m, 3H), 7.02 (d, J = 7.6 Hz, 1 H), 7.09-7.11 (m, 3H), 7.14-7.18 (m, 1 H), 7.24-7.28 (m,

2H) 7.35 (d, J = 8.4 Hz, 1 H).

MS (ES+) m/z 541.05(M+1 ).

Example 36: 3-({(2R,3S,4R,5R,6S)-6-[4-Chloro-3-(4-ethoxy-benzyl)-phenyl] -3,4,5- trihydroxy-tetrahydro-pyran-2-ylmethyl}-amino)-benzamide

The title compound was prepared in an analogous procedure as described in example

35 using ammonia instead of methylamine.

¹ H-NMR (400 MHz, CD ₃ OD): δ 1.37 (t, J = 7.2 Hz, 3H), 3.25-3.29 (m, 2H), 3.37-3.56 (m

,3H), 3.67-3.71 (m, 1 H), 3.96-4.05 (m, 4H), 4.11 (d, J = 9.2 Hz, 1 H), 6.80 (d, J = 8.4 Hz,

2H), 6.86 (d, J = 8.4 Hz, 1 H), 7.09 (d, J = 8.8 Hz, 3H), 7.16-7.20 (m, 2H), 7.25-7.28 (m,

2H), 7.36 (d, J = 8.0 Hz, 1 H).

MS (ES+) m/z 527.1 (M+1 ).

Example 37: [3-({(2R,3S,4R,5R,6S)-6-[4-Chloro-3-(4-ethoxy-benzyl)-phenyl ]-3,4,5- trihydroxy-tetrahydro-pyran-2-ylmethyl}-methyl-amino)-phenyl ]-pyrrolidin-1-yl- methanone 52822

Step I. To a solution of (2S,3R,4R,5S,6S)-2-[4-chloro-3-(4-ethoxy-benzyl)-phenyl]-6- iodomethyl-tetrahydro-pyran-3,4,5-triol (300 mg, 0.57 mmole) in N-methyl morpholine (0.3 ml_), 3-methylamino-benzoic acid methyl ester hydrochloride (290 mg, 1.40 mmole) was added and the mixture was heated in sealed tube at 130 ⁰ C for 8 hours. The reaction mixture was concentrated and purified by preparative TLC to furnish 3- ({(2R,3S,4R,5R,6S)-6-[4-chloro-3-(4-ethoxy-benzyl)-phenyl]-3 ,4,5-trihydroxy-tetrahydro- pyran-2-ylmethyl}-methyl-amino)-benzoic acid methyl ester (59 mg). Step II. To a solution of 3-({(2R,3S,4R,5R,6S)-6-[4-chloro-3-(4-ethoxy-benzyl)-phenyl] - 3,4,5-trihydroxy-tetrahydro-pyran-2-ylmethyl}-methyl-amino)- benzoic acid methyl ester (50 mg, 0.08 mmole) in pyrrolidine (0.2 ml_), 1 ,5,7-triazo-bicyclo[4.4.0]dec-5-ene (12 mg, 0.08 mmole) was added and the mixture was heated in sealed tube at 80 ⁰ C for 36 hours. The reaction mixture was concentrated and purified by preparative HPLC to furnish the title compound (20 mg).

¹ H-NMR (400 MHz, CD ₃ OD): δ 1.38 (t, J = 7.2 Hz, 3H), 1.81-1.84 (m, 2H), 1.92-1.98 (m, 2H), 2.93 (s, 3H), 3.22 (t, J= 9.2 Hz, 1 H), 3.22-3.37 (m ,1 H), 3.44-3.49 (m, 4H), 3.53-3.59 (m, 3H), 3.91-4.04 (m, 6H), 6.72 (d, J = 7.6 Hz, 1 H), 6.83 (d, J = 8.4 Hz, 2H), 6.88-6.90 (m, 2H), 7.08 (d, J = 8.4 Hz, 2H), 7.19-7.24 (m, 3H), 7.32 (d, J = 8.0 Hz, 1 H). MS (ES+) m/z 595.4(M+1 ).

Example 38: 3-({(2R,3S,4R,5R,6S)-6-[4-Chloro-3-(4-ethoxy-benzyl)-phenyl] -3,4,5- trihydroxy-tetrahydro-pyran-2-ylmethyl}-methyl-amino)-N-meth yl-benzamide 52822

The title compound was prepared in an analogous procedure as described in example

37 using methylamine instead of pyrrolidine.

¹ H-NMR (400 MHz, CD ₃ OD): δ 1.38 (t, J = 7.2 Hz, 3H), 2.88 (s, 3H), 2.96 (s, 3H), 3.23 (t,

J = 9.2 Hz, 1 H), 3.29-3.37 (m ,1 H), 3.44-3.49 (m, 2H), 3.61 (t, J = 9.2 Hz, 1 H), 3.95-4.04

(m, 6H), 6.80 (d, J = 8.4 Hz, 2H), 6.94-6.97 (m, 1 H), 7.01 (d, J = 7.2 Hz, 1 H), 7.09 (d, J =

8.4 Hz, 2H), 7.18-7.24 (m, 4H), 7.30 (d, J = 8.0 Hz, 1 H).

MS (ES+) m/z 555.3(M+1 ).

Example 39: In Vitro Assays

The inhibitory effect on the sodium-dependent glucose cotransporter SGLT, SGLT1 and SGLT2, of compounds of formula I may be demonstrated using the following test procedures:

SGLT2 Assay

The ability of the substances to inhibit the SGLT-2 activity may be demonstrated in a test set- up in which a CHO-K1 cell line (ATCC No. CCL 6 1 ) or alternatively an HEK293 cell line (ATCC No. CRL-1573), which is stably transfected with an expression vector pZeoSV (Invitrogen, EMBL accession number L36849), which contains the cDNA for the coding sequence of the human sodium glucose cotransporter 2 (Genbank Ace. No.NM_003041 ) (CHO-hSGLT2 or HEK-hSGLT2). These cell lines transport ¹⁴ C-labeled alpha-methyl-glucopyranoside ( ¹⁴ C-AMG, Amersham) into the interior of the cell in sodium-dependent manner.

The SGLT-2 assay is carried out as follows: CHO-hSGLT2 cells are cultivated in Ham's F12 Medium (BioWhittaker) with 10% fetal calf serum and 250 μg/mL zeocin (Invitrogen), and HEK293-hSGLT2 cells are cultivated in DMEM medium with 10% fetal calf serum and 250 μg/mL zeocin (Invitrogen). The cells are detached from the culture flasks by washing twice with PBS and subsequently treating with trypsin/EDTA. After the 52822

addition of cell culture medium the cells are centrifuged, resuspended in culture medium and counted in a Casy cell counter. Then 40,000 cells per well are seeded into a white, 96-well plate coated with poly-D-lysine and incubated overnight at 37°C, 5% CO2 . The cells are washed twice with 250 μl of assay buffer (Hanks Balanced Salt Solution, 137 mM NaCI, 5.4 mM KCI, 2.8 mM CaCI2 , 1.2 mM MgSO4 and 10 mM HEPES (pH 7.4), 50 μg/mL of gentamycin). 250 μl of assay buffer and 5 μl of test compound are then added to each well and the plate is incubated for a further 15 minutes in the incubator. 5 μl of 10% DMSO are used as the negative control. The reaction is started by adding 5 μl of 14 C- AMG (0.05 μCi) to each well. After 2 hours' incubation at 37°C, 5% CO2 , the cells are washed again with 250 μl of PBS (200C) and then lysed by the addition of 25 μl of 0.1 N NaOH (5 min. at 37°C). 200 μl of MicroScint20 (Packard) are added to each well and incubation is continued for a further 20 min at 37°C. After this incubation the radioactivity of the 14 C-AMG absorbed is measured in a Topcount (Packard) using a 14 C scintillation program.

SGLT1 Assay

To determine human SGLT1 inhibitory activity, an analogous test was set up in which the cDNA for hSGLTI (Genbank Ace. No. NM000343) instead of hSGLT2 cDNA is expressed in CHO-K1 or HEK293 cells. The uptake assay buffer in the case of the hSGLTI assay contains 10 mM HEPES, 5 mM Tris, 140 mM NaCI, 2 mM KCI, 1 mM CaCI ₂ , and 1 mM MgCI ₂ , pH 7.4 containing 0.5 mM of α-methyl-D-glucopyranoside (AMG), 10 μM of [ ¹⁴ C]-α-methyl-D-glucopyranoside and different inhibitor concentrations.

The compounds according to the invention may for example have IC ₅₀ values for SGLT2 inhibition below 1000 nM, particularly below 100 nM, most preferably below 10 nM. The compounds according to the invention may also have SGLT1 inhibitory activity.

The title compounds of the above Examples were evaluated in the above described assay and the results of which are collated in Table 1.

TABLE 1

Example Number SGLT2 IC ₅₀ nM (n = 1-4) SGLT1 IC ₅ O nM (n = 1-4)

9 94 >10000 52822

It can be seen that the compounds of the invention are useful as inhibitors of SGLT2 and therefore useful in the treatment of diseases and conditions mediated by SGLT2 such as the metabolic disorders disclosed herein.

It will be understood that the invention has been described by way of example only and modifications may be made whilst remaining within the scope and spirit of the invention.