DISCLOSURE OF INVENTION This invention relates to new aminoalcohol derivatives which are 03 adrenergic receptor agonists and salts thereof.

More particularly, it relates to new aminoalcohol derivatives and salts thereof which have gut sympathomimetic, anti-ulcerous, anti-pancreatitis, lipolytic, anti-urinary incontinence, anti-pollakiu'ria activities, anti-diabetes and anti-obesity, to processes for the preparation thereof, to a pharmaceutical composition comprising the same and to a method of using the same therapeutically in the treatment and/or prevention of gastro-intestinal disorders caused by smooth muscle contractions in a human being or an animal.

One object of this invention is to provide new and useful aminoalcohol derivatives and salts thereof which have gut sympathomimetic, anti-ulcerous, lipolytic, anti-urinary incontinence, anti-pollakiuria activities, anti-diabetes and anti-obesity.

Another object of this invention is to provide processes for the preparation of said aminoalcohol derivatives and salts thereof.

A further object of this invention is to provide a pharmaceutical composition comprising, as an active ingredient, said aminoacohol derivatives and salts thereof.

Still further object of this invention is to provide a therapeutical method for the treatment and/or prevention of aforesaid diseases in a human being or an animal, using said

aminoalcohol derivatives and salts thereof.

The object aminoalcohol derivatives of this invention are new and can be represented by compound of the following formula [I]: Ri and R5 are each independently hydrogen, halogen lower alkyl, mono (or di or tri) halo (lower) alkyl or cyano, R2 is hydrogen or an amino protective group, X is bond, -O-, -O-CH2-, - (CH2) q- (in which q is 1 to 3), -CH=CH-, -C#C-, -NH-, -S- or -SO2-, in which Z is bond,-0- (CH) m (in which m is 1 to 4), lower alkylene or lower alkenylene, R3 is lower alkanoyl, carboxy, lower

alkoxycarbonyl, carbamoyl, (lower alkylsulfonyl) carbamoyl, (phenylsulfonyl) carbamoyl, (benzylsulfonyl) carbamoyl or tetrazolyl, and R4 is hydrogen, halogen, hydroxy, phenoxy, lower alkyl, lower alkoxy, cyclo (lower) alkyloxy, 3,4, 5,6-tetrahydro- 2H-pyranyloxy, phenoxy, nitro, cyano or R6 ~N R7 in which R6 is hydrogen or lower alkyl, and R7 is hydrogen, lower alkyl, lower alkanoyl, lower alkoxycarbonyl, benzyloxycarbonyl, benzoyl, furoyl, lower alkylcarbamoyl, phenylcarbamoyl, lower alkylsulfonyl, 3,4, 5,6-tetrahydro-2H-pyranyl or phenyl, or R6 and R7 are combined to form pyrrolidino or piperidino together with the nitrogen atom which may be substituted with oxo, and n is 0,1 or 2, or a salt thereof.

According to this invention, the object compounds can be prepared by processes which are illustrated in the following schemes.

Process 1

O R2 R X-Y + razz I Rl X CH-CH2 HN < X-Y [II] [III] or a salt thereof OH R2 Rl RS R X-Y X-Y g5 CH n/ [I] or a salt thereof Process 2 OH R2 a Ru N R X-Y X-Y R5 (CH2) n [Ia] or a salt thereof elimination reaction OH H of the amino protective I group Ri N R X-Y (CH) n/ [Ib] or a salt thereof Process 3

OH R2 RU IN R I OH + (HO) 2B-y P, 5- (CH2) n [IV] [VI or a salt thereof or a salt thereof OH R2 R1 N _ R 0_Y R5 CH n/ [Ic] or a salt thereof Process 4 OH R2 R1 N Ru N R5 5 (CH2) n [IV] [VI] or a salt thereof or a salt thereof OH R2 Ru R Q-Y (CH2) n [Ic] or a salt thereof Process 5

OH R2 R1 N ru N (HO) B-Y R5 (CH2) n/ [VII] [V] or a salt thereof or a salt thereof OH R2 R1 N zu Y , R1, N, 03 [Id] or a salt thereof R1, R2, R5, X, Y and n are each as defined above, Ra is an amino protective group, and X1 and X2 are each a leaving group.

As to the starting compounds [II], [III], [Ia], [IV], [V], [VI] and [VII], some of them are novel and can be prepared by the procedures described in the Preparations and Examples mentioned below or a conventional manner.

In the above and subsequent description of the present specification, suitable examples of the various definition to be included within the scope of the invention are explained in detail in the following.

The term"lower"is intended to mean a group having 1 to 6, preferably 1 to 4, carbon atom (s), unless otherwise indicated.

Suitable"lower alkylene"is straight or branched one having 1 to 6 carbon atom (s) and may include methylene, ethylene, trimethylene, propylene, tetramethylene, methylmethylene, methyltrimethylene, hexamethylene, and the like.

Suitable example of"lower alkyl"and"lower alkyl" moiety in the terms of" (lower alkylsulfonyl) carbamoyl", "mono (or di or tri) halo (lower) alkyl", etc. may include straight or branched one having 1 to 6 carbon atom (s), such as methyl, ethyl propyl, isopropyl, butyl, isobutyl, sec- butyl, tert-butyl, pentyl, 1-methylpentyl, tert-pentyl, neo- pentyl, hexyl, isohexyl, and the like, in which preferable one is methyl.

Suitable"cyclo (lower) alkyl" moiety in the term of "cyclo (lower) alkyloxy" may include cyclopropyl, cyclobutyl, cyclopentyl, and cyclohexyl, in which the preferred one may be cyclohexyl.

The term"lower alkenylene"means one having one or two double bond (s) in the straight or branched lower alkylene group as defined above.

Suitable"lower alkenylene"may include one having 2 to 6 carbon atoms such as vinylene, 1-propenylene, 2- propenylene, 1,3-butadienylene, 1-methylvinylene and the like.

Suitable"lower alkoxy"and"lower alkoxy"moiety in the term of"lower alkoxycarbonyl"may include methoxy, ethoxy, propoxy, isopropoxy, butoxy, iso-butoxy, tert-butoxy, pentyloxy, tert-pentyloxy, hexyloxy and the like, in which preferable one is methoxy or ethoxy.

Suitable"lower alkanoyl"may include formyl, acetyl,

propanoyl, butanoyl, 2-methylpropanoyl, pentanoyl, 2,2- dimethylpropanoyl, hexanoyl and the like, in which preferable one is formyl.

Suitable"halogen"may be fluoro, chloro, bromo and iodo, in which preferable one is chloro.

Suitable"mono (or di or tri) halo (lower) alkyl" may be fluoromethyl, difluoromethyl, trifluoromethyl, chloromethyl, dichloromethyl, trichloromethyl, bromomethyl, dibromomethyl, tribromomethyl, 1 or 2-fluoroethyl, 1 or 2-bromoethyl, 1 or 2-chloroethyl, 1, 1-difluoroethyl, 2, 2-difluoroethyl, and the like, in which the preferred one may be trifluoromethyl.

Suitable"leaving group"may include hydroxy, reactive group derived from hydroxy and the like.

Suitable"reactive group derived from hydroxy"may include acid residue and the like.

Suitable"acid residue"may include halogen (e. g. fluoro, chloro, bromo, iodo), acyloxy (e. g. acetoxy, tosyloxy, mesyloxy, trifluoromethanesulfonyloxy, etc.) and the like.

Suitable example of"amino protective group"moiety may be common amino protective group such as substituted or unsubstituted lower alkanoyl [e. g. formyl, acetyl, propionyl, trifluoroacetyl, etc.], phthaloyl, lower alkoxycarbonyl [e. g. tert-butoxycarbonyl, tert-amyloxycarbonyl, etc.], substituted or unsubstituted aralkyloxycarbonyl [e. g. benzyloxycarbonyl, p-nitrobenzyloxycarbonyl, etc.], substituted or unsubstituted arenesulfonyl [e. g. benzenesulfonyl, tosyl, etc. ], nitrophenylsulfenyl, ar (lower) alkyl [e. g. trityl, benzyl, etc.], and the like, in which preferable one is tert-butoxycarbonyl.

Suitable salts of the object aminoalcohol derivative [I] are pharmaceutically acceptable salts and include conventional non-toxic salts such as an inorganic acid addition salt [e. g. hydrochloride, hydrobromide, sulfate, phosphate, etc. ], an organic acid addition salt [e. g. formate, acetate, trifluoroacetate, oxalate, maleate, fumarate, tartrate, citrate, methanesulfonate, benzenesulfonate, toluenesulfonate, etc. , an alkali metal salt [e. g. sodium salt, potassium salt, etc. ] or the like.

The Processes 1 to 5 for preparing the object compounds of the present invention are explained in detail in the following.

Process 1 The object compound [I] or a salt thereof can be prepared by reacting a compound [II] with a compound [III] or a salt thereof.

Suitable salt of the compound [III] may be the same as those exemplified for the compound [I].

The reaction is preferably carried out in the presence of a base such as an alkali metal carbonate [e. g. sodium carbonate, potassium carbonate, etc. ], an alkaline earth metal carbonate [e. g. magnesium carbonate, calcium carbonate, etc. ], an alkali metal bicarbonate [e. g. sodium bicarbonate, potassium bicarbonate, etc. ], tri (lower) alkylamine [e. g. trimethylamine, triethylamine, etc.], picoline or the like.

The reaction is usually carried out in a conventional solvent, such as an alcohol [e. g. methanol, ethanol, propanol, isopropanol, etc. ], diethyl ether, tetrahydrofuran, dioxane, or any other organic solvent which does not adversely influence the reaction.

The reaction temperature is not critical, and the reaction can be carried out under cooling to heating.

Process 2 The object compound [Ib] or a salt thereof can be prepared by subjecting a compound [Ia] or a salt thereof to elimination reaction of the amino protective group.

Suitable salts of the compounds [Ia] and [Ib] may be the same as those exemplified for the compound [I].

This reaction can be carried out in a similar manner to that of Example 2 or 9 mentioned below.

Process 3 The object compound [Ic] or a salt thereof can be prepared by reacting a compound [IV] or a salt thereof with a compound [V] or a salt thereof.

Suitable salts of the compounds [Ic] [IV] and [V] may be the same as those exemplified for the compound [I].

This reaction can be carried out in a similar. manner to that of Examples 1 mentioned below.

Process 4 The object compound [Ic] or a salt thereof can be prepared by reacting a compound [IV] or a salt thereof with a compound [VI] or a salt thereof.

Suitable salts of the compound [Ic], [IV] and [VI] may be the same as those exemplified for the compound [I].

This reaction can be carried out in a similar manner to that of Example 7 mentioned below.

Process 5 The object compound [Id] or a salt thereof can be prepared by reacting a compound [VII] or a salt thereof with a compound [V] or a salt thereof.

Suitable salts of the compounds [Id], [VII] and [V] may be the same as those exemplified for the compound [I].

This reaction can be carried out in a similar manner to that of Example 15 mentioned below.

The compounds obtained by the above processes can be isolated and purified by a conventional method such as pulverization, recrystallization, column chromatography, reprecipitation, or the like, and converted to the desired salt in conventional manners, if necessary.

It is to be noted that the compound [I] and the other compounds may include one or more stereoisomers due to asymmetric carbon atoms, and all of such isomers and mixture thereof are included within the scope of this invention.

It is further to be noted that isomerization or rearrangement of the object compound [I] may occur due to the effect of the light, acid base or the like, and the compound obtained as the result of said isomerization or rearrangement if also included within the scope of the present invention.

It is also to be noted that the solvating form of the compound [I] (e. g. hydrate, etc. ) and any form of the crystal of the compound [I] are included within the scope of the present invention.

The object compound [I] or a salt thereof possesses gut sympathomimetic, anti-ulcerous, anti-pancreatitis, lipolytic, anti-urinary incontinence and anti-pollakiuria activities, and are useful for the treatment and/or prevention of gastro-intestinal disorders caused by smooth muscle contractions in human beings or animals, and more parcitularly for the treatment and/or prevention of spasm or hyperanakinesia in case of irritable bowel syndrome, gastritis, gastric ulcer, duodenal ulcer, enteritis, cholecystopathy, cholantitis, urinary calculus and the like; for the treatment and/or prevention of ulcer such as gastric ulcer, duodenal ulcer, peptic ulcer, ulcer causes by non steroidal anti-inflammatory drags, or the like; for the treatment and/or prevention of dysuria such as pollakiuria,

urinary incontinence or the like in case of nervous pollakiuria, neurogenic bladder dysfunction, nocturia, unstable bladder, cystospasm, chronic cystitis, chronic prostatitis, prostatic hypertrophy or the like; for the treatment and/or prevention of pancreatitis, obesity, diabetes, glycosuria, hyperlipidemia, hypertension, atherosclerosis, glaucoma, melancholia, depression or the like; for the treatment and/or prevention of diseases as the result of insulin resistance (e. g. hypertension, hyperinsulinemia, etc. ) ; for the treatment and/or prevention of neurogenetic inflammation ; and for reducing a wasting condition, and the like.

Additionally, P3 adrenergic receptor agonists are known to lower triglyceride and cholesterol levels and to raise high density lipoprotein levels in mammals (US Patent No.

5, 451, 6'77). Accordingly, the object compound [I] in useful in the treatment and/or prevention of conditions such as hyper-triglyceridaemia, hypercholesterolaemia and in lowering high density lipoprotein levels as well as in the treatment of atherosclerotic and cardiovascular diseases and relates conditions.

Moreover, the object compound [I] is useful for inhibiting uterine contractions, preventing premature labor, and treating and preventing dysmenorrhea.

In order to show the usefulness of the compound [I] for the prophylactic and therapeutic treatment of above- mentioned disease in human being or animals, a representative compound of the compound [I] was tested on the following pharmaceutical test.

Test Effect on the increase in intravesical pressure induced by carbachol in anesthetized dog

Test Compound (1) 5-[[(7S)-7-[[(2R)-2-(4-Chlorophenyl)-2-hydroxyethyl]- amino] -5,6, 7,8-tetrahydro-2-naphthalenyl] oxy]-2-methoxy- benzoic acid hydrochloride (compound of Example 38- (9)) Test Method Female Beagle dogs weighing 8.0-15. 0 kg were fasted for 24 hours and maintained under halothane anesthesia. A 12F Foley catheter was lubricated with water soluble jelly, inserted into the urethral orifice and advanced approximately 10 cm until the balloon tip was placed well inside the bladder. The balloon was then inflated with 5 ml of room air and catheter slowly withdrawn just part the first resistance that is felt at the bladder neck. Urine was completely drained out through the catheter, and 30 ml of biological saline was infused. The catheter was connected to pressure transducer, and intravesical pressure (IVP) was continuously recordered. The test compound was administered intravenously at 30 minutes before the administration of carbachol (1.8 Fg/kg). Percent inhibition of IVP increase by test compound was calculated by dividing IVPa (IVP increase induced by carbachol after. test compound administaration) by IVPb (IVP increase induced by carbachol just before test compound administration).

Test Results Treatment Percent inhibition of IVP increase Test Compound (1) 54 (0.032 mg/kg) Preferred embodiments of the object compound [I] are as follows: Ri and R5 are each independently hydrogen, halogen (more

preferably chloro or fluoro, most preferably chloro), lower alkyl (more preferably C1-C4 alkyl, most preferably methyl) or mono (or di or tri) halo (lower) alkyl (more preferably mono (or di or tri) halo (C1-C4) alkyl, most preferably trifluoromethyl), R2 is hydrogen, X is bond, -O-, -O-CH2-, - (CH2)q- (in which q is 1 or 2), <BR> <BR> <BR> -CH=CH-,-C-C-,-NH-,-S-or-SO2-, in which Z is bond,-O-(CH2) m- (in which m is 1 to 4), lower alkylene (more preferably C1-C4 alkylene, most preferably methylene) or lower alkenylene (more preferably C2-C4 alkenylene, most preferably vinylene), R3 is lower alkanoyl (more preferably C1-C4 alkanoyl, most preferably formyl), carboxy, lower alkoxycarbonyl (more preferably C1-C4 alkoxycarbonyl, most preferably methoxycarbonyl or ethoxycarbonyl), carbamoyl, (lower alkylsulfonyl) carbamoyl (more preferably C1-C4 alkylsulfonyl) carbamoyl, most preferably (methylsulfonyl) carbamoyl), (phenylsulfonyl) carbamoyl,

(benzylsulfonyl) carbamoyl or tetrazolyl, and R4 is hydrogen, halogen (more preferably chloro or fluoro, most preferably chloro), hydroxy, phenoxy, lower alkyl (more preferably C1-C4 alkyl, most preferably methyl), lower alkoxy (more preferably C1-C4 alkoxy, most preferably methoxy), cyclo (lower) alkyloxy (more preferably cycle (C3-C6) alkyloxy, most preferably cyclohexyloxy), 3,4, 5,6-tetrahydro-2H- pyranyloxy (more preferably 3,4, 5,6- tetrahydro-2H-pyran-4-yloxy), phenoxy, R6 nitro, cyano or-N R7 in which R6 is hydrogen or lower alkyl (more preferably C1-C4 alkyl, most preferably methyl), and R7 is hydrogen, lower alkyl (more preferably C1-C4 alkyl, most preferably methyl), lower alkanoyl (more preferably C1-C4 alkanoyl, most preferably acetyl), lower alkoxycarbonyl (more preferably C1-C4 alkoxycarbonyl, most preferably methoxycarbonyl), benzyloxycarbonyl, benzoyl, furoyl, lower alkylcarbamoyl (more preferably C1-C4 alkylcarbomoyl, most preferably methylcarbamoyl), phenylcarbamoyl, lower alkylsulfonyl (more preferably C1-C4 alkylsulfonyl, most preferably methylsulfonyl), 3,4, 5,6-tetrahydro-2H-pyranyl (more

preferably 3,4, 5,6-tetrahydro-2H- pyran-4-yl) or phenyl, or R6 and R7 are combined to form pyrrolidino or piperidino together with the nitrogen atom which may be substituted with oxo, and n is 0,1 or 2.

More preferred embodiments of the object compound [I] are as follows: R1 is halogen (more preferably chloro), R5 is hydrogen, R2 is hydrogen, X is bond,-O-or-O-CH2-, in which Z is bond,-0- (CH2) m- (in which m is 1 or 2) or lower alkenylene (more preferably C2-C4 alkenylene, most preferably vinylene), R3 is lower alkanoyl (more preferably C1-C4 alkanoyl, most preferably formyl), carboxy, lower alkoxycarbonyl (more preferably C1-C4 alkoxycarbonyl, most preferably methoxycarbonyl or ethoxycarbonyl), carbamoyl or tetrazolyl, and R4 is hydrogen or lower alkoxy (more preferably C1-C4 alkoxy, most preferably methoxy), and n is 1 or 2.

More preferred embodiments of the object compound [I] are as follows.

R1 is chloro, R5 is hydrogen, R2 is hydrogen, X is bond or-0-, in which Z is bond or lower alkenylene (more preferably C2-C4 alkenylene, most preferably vinylene), R3 is carboxy, and R4 is hydrogen or lower alkoxy (more preferably C1-C4 alkoxy, most preferably methoxy), and n is 1.

The following Preparations and Examples are given for the purpose of illustrating this invention.

Preparation 1 To a mixture of (7S)-7- [ [ (2R)-2- (3-chlorophenyl)-2- hydroxyethyl] amino]-2-hydroxy-5, 6,7, 8-tetrahydronaphthalene (10 g) in tetrahydrofuran (100 ml) was added di-tert-butyl dicarbonate (8 g) at room temperature, and the mixture was stirred at the same temperature for 12 hours. The resulting mixture was evaporated under reduced pressure and the residue was purified by column chromatography on silica gel to give (7S)-7- [N- [ (2R)-2- (3-chlorophenyl)-2-hydroxyethyl]- N- (tert-butoxycarbonyl) amino]-2-hydroxy-5, 6,7, 8- tetrahydronaphthalene (12 g).

1H NMR (200MHz, CDC13, 8) : 1.51 (9H, s), 1.7-1. 9 (2H, m), 2.7-3. 0 (4H, m), 3.2-3. 4 (1H, m), 3.4-3. 7 (1H, m), 4.0-4. 2 (1H, m), 4.7-4. 9 (1H, m), 6.03 (1H, br. s), 6.5-6. 6 (2H, m), 6.62 (1H, dd, J=2.4, 8.4Hz), 6.90 (1H, d, J=8.4Hz), 7.3-7. 5 (3H, m), 7.37 (1H, s) Ms: 440 (M+22) Preparation 2 The following compound was obtained according to a similar manner to that of Preparation 1.

(8S)-8- [N- [ (2R)-2- (3-Chlorophenyl)-2-hydroxyethyl]-N- (tert-butoxycarbonyl) amino] -6,7, 8,9-tetrahydro-5H- benzo [a] [7] annulen-2-ol 1H NMR (200MHz, CDC13, 8) : 1.50 (9H, s), 1.4-2. 0 (4H, m), 2.6-2. 8 (3H, m), 3.1-3. 5 (4H, m), 4.8-5. 0 (1H, m), 6.03 (1H, br. s), 6.58 (2H, m), 6.92 (1H, m), 7. 26 (3H, m), 7.41 (1H, s) Ms: 454 (M+22) Example 1 To a mixture of (7S)-7- [N- [ (2R)-2- (3-chlorophenyl)-2- hydroxyethyl]-N-(tert-butoxycarbonyl) amino]-2-hydroxy- 5,6, 7,8-tetrahydronaphthalene (400 mg) in dichlorometane (10 ml) and triethylamine (1 ml) were added (3- methoxycarbonylphenyl) boronic acid (400 mg) and copper (II) acetate (400 mg) and molecular sieves 4A (1 g) at room temperature, and the mixture was stirred at the same temperature for 12 hours. The resulting mixture was filtrated by celite and the mother layer was evaporated under reduced pressure. The residue was purified by column chromatography on silica gel to give 3- [ [ (7S)-7- [N- [ (2R)-2- (3-chlorophenyl)-2-hydroxyethyl]-N- (tert-butoxycarbonyl)- amino-5, 6,7, 8-tetrahydro-2-naphthalenyl] oxy] benzoic acid

methyl ester (240 mg).

1H NMR (200MHz, CDC13, 8) : 1. 51 (9H, s), 1.7-1. 9 (2H, m), 2.7-3. 0 (4H, m), 3.2-3. 4 (1H, m), 3.4-3. 7 (1H, m), 3.90 (3H, s), 4.0-4. 2 (1H, m), 4.8-5. 0 (1H, m), 6.6-6. 9 (2H, m), 7.05 (1H, d, J=8. 4Hz), 7. 1-7.8 (8H, m) Ms: 574 (M+22) Example 2 To a solution of 3- [ [ (7S)-7- [N- [ (2R)-2- (3- chlorophenyl)-2-hydroxyethyl]-N- (tert-butoxycarbonyl)- amino-5, 6,7, 8-tetrahydro-2-naphthalenyl] oxy] benzoic acid methyl ester (240 mg) in methanol (10 ml) was added 1N sodium hydroxide (5 ml) at room temperature, and the mixture was stirred at the same temperature for 12 hours. The resulting mixture was evaporated under reduced pressure.

The residue was diluted with a mixture of ethyl acetate (30 ml) and 1N hydrochloric acid (10 ml), and the organic layer was washed with brine, dried over magnesium sulfate, and evaporated under reduced pressure. The obtained benzoic acid was diluted with 6N hydrogen chloride in dioxane (10 ml) and the mixture was allowed to keep at room temperature for 4 hours. The mixture was evaporated under reduced pressure and the obtained solid was washed with ethyl ether to give 3-[[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2-hydroxy- ethyl] amino] -5, 6,7, 8-tetrahydro-2-naphthalenyl] oxy] benzoic acid hydrochloride (100 mg).

1H NMR (200MHz, DMSO-d6, b) : 1.7-2. 0 (1H, m), 2.1-2. 3 (1H, m), 2.7-3. 5 (7H, m), 5.0-5. 1 (1H, m), 6.4 (br. s), 6.8-7. 0 (2H, m), 7.1-7. 8 (9H, m) Ms: 438 (M+1) Example 3 The following compounds were obtained according to a similar manner to that of Example 1.

(1) 4-[[(7S)-7-[N-[(2R)-2-(3-Chlorophenyl)-2-hydroxyethyl]- N- (tert-butoxycarbonyl) amino]-5, 6,7, 8-tetrahydro-2- naphthalenyl] oxy] benzoic acid methyl ester 1H NMR (200MHz, CDC13, 8) : 1.51 (9H, s), 1.7-1. 9 (2H, m), 2.7-3. 0 (4H, m), 3.2-3. 4 (1H, m), 3.4-3. 7 (1H, m), 3.89 (3H, s), 4.0-4. 2 (1H, m), 4.8-5. 0 (1H, m), 6.7-7. 3 (8H, m), 7.39 (1H, s), 7.99 (2H, d, J=8.6Hz) Ms: 574 (M+22) (2) [3-[[(7S)-7-[N-[(2R)-2-(3-Chlorophenyl)-2- hydroxyethyl]-N- (tert-butoxycarbonyl) amino]-5, 6,7, 8- tetrahydro-2-naphthalenyl] oxy] phenoxy] (tert- butyl) dimethylsilane 1H NMR (200MHz, CDC13, 8) : 0. 17 (6H, s), 0.95 (9H, s), 1.51 (9H, s), 1.7-1. 9 (2H, m), 2.7-3. 0 (4H, m), 3.2-3. 4 (1H, m), 3.4-3. 7 (1H, m), 4.0-4. 2 (1H, m), 4.8-5. 0 (1H, m), 6.4-6. 9 (5H, m), 7.0-7. 5 (6H, m) Ms: 646 (M+22) (3) [4-[[(7S)-7-[N-[(2R)-2-(3-Chlorophenyl)-2- hydroxyethyl]-N- (tert-butoxycarbonyl) amino] -5,6, 7,8- tetrahydro-2-naphthalenyl] oxy] phenoxy] (tert-butyl) - dimethylsilane 1H NMR (200MHz, CDC13, 5) : 0.17 (6H, s), 0.95 (9H, s), 1.51 (9H, s), 1.7-1. 9 (2H, m), 2.7-3. 0 (4H, m), 3.2-3. 4 (1H, m), 3.4-3. 7 (1H, m), 4.0-4. 2 (1H, m), 4.8-5. 0 (1H, m), 6.5-7. 0 (6H, m), 7.2-7. 4 (5H, m) Ms: 646 (M+22) (4) 3- [ [ (8S)-8- [N- [ (2R)-2- (3-Chlorophenyl)-2-hydroxyethyl]- N- (tert-butoxycarbonyl) amino] -6,7, 8,9-tetrahydro-5H- benzo [a] cyclohepten-2-yl] oxy] benzoic acid methyl ester 1H NMR (200MHz, CDCl3, 5) : 1.51 (9H, s), 1.8-2. 1 (2H,

m), 2.5-2. 8 (2H, m), 3.0-3. 4 (3H, m), 3.91 (3H, s), 4.91 (1H, m), 6.6-6. 8 (1H, m), 6.9-7. 1 (1H, m), 7.1-7. 8 (9H, m) Ms: 588 (M+22) (5) 4-[[(8S)-8-[N-[(2R)-2-(3-Chlorophenyl)-2-hydroxyethyl]- N- (tert-butoxycarbonyl) amino]-6, 7,8, 9-tetrahydro-5H- benzo [a] cyclohepten-2-yl] oxy] benzoic acid methyl ester 'H NMR (200MHz, CDC13, 8) : 1. 51 (9H, s), 1.8-2. 1 (2H, m), 2.5-2. 8 (2H, m), 3.0-3. 4 (3H, m), 3.91 (3H, s).

4.91 (1H, m), 6.9-7. 8 (11H, m) Ms: 588 (M+22) Example 4 The following compounds were obtained according to a similar manner to that of Example 2.

(1) 4-[[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2-hydroxyethyl]- amino-5, 6,7, 8-tetrahydro-2-naphthalenyl] oxy] benzoic acid hydrochloride 1H NMR (200MHz, DMSO-d6, 5) : 1.7-2. 0 (1H, m), 2.1-2. 3 (1H, m), 2.7-3. 5 (7H, m), 5.0-5. 1 (1H, m), 6.4 (br. s), 6.7-6. 9 (2H, m), 6.99 (2H, d, J=8.6Hz), 7.19 (1H, d, J=8.4Hz), 7.2-7. 5 (4H, m), 7.93 (2H, d, J=8.6Hz) Ms: 438 (M+1) (2) [[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2-hydroxyethyl]- amino] -5, 6, 7, 8-tetrahydro-2-naphthalenyl] oxy] phenoxy]- acetic acid hydrochloride 1H NMR (200MHz, DMSO-d6, 5) : 1.7-2. 0 (1H, m), 2.2-2. 5 (1H, m), 2. 6-3.6 (7H, m), 4.65 (2H, s), 5.07 (1H, m), 6.36 (1H, m), 6.5-6. 8 (5H, m), 7.0-7. 6 (6H, m), 8.97 (1H, m), 9.44 (1H, m) Ms: 468 (M+1)

(3) [4-[[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2-hydroxyethyl]- amino] -5,6, 7, 8-tetrahydro-2-naphthalenyl] oxy] phenoxy]- acetic acid hydrochloride 1H NMR (200MHz, DMSO-d6, b) : 1.7-2. 0 (1H, m), 2.2-2. 5 (1H, m), 2.6-3. 6 (7H, m), 4.55 (2H, s), 5.04 (1H, m), 6.37 (1H, m), 6.6-7. 0 (7H, m), 7.3-7. 5 (4H, m) Ms : 468 (M+1) (4) 6-[[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2-hydroxyethyl]- amino-5, 6,7, 8-tetrahydro-2-naphthalenyl] oxy] nicotinic acid hydrochloride 1H NMR (200MHz, DMSO-d6, 8) : 1.7-2. 0 (1H, m), 2.3-2. 5 (1H, m), 2.7-3. 7 (7H, m), 5.12 (1H, m), 6.8-7. 0 (2H, m), 7.0-7. 3 (2H, m), 7. 4-7. 6 (4H, m), 8.27 (1H, dd, J=2.2, 8.6Hz), 8.64 (1H, d, J=2.2Hz), 9.0 (1H, br. s), 9.6 (1H, br. s) Ms : 439 (M+1) (5) 3-[[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2-hydroxyethyl]- amino-5, 6,7, 8-tetrahydro-2-naphthalenyl] benzoic acid hydrochloride H NMR (200MHz, DMSO-d6, 6) : 1.7-2. 0 (1H, m), 2.1-2. 3 (1H, m), 2.5-3. 7 (7H, m), 5.07 (1H, m), 6.4 (1H, m), 7.24 (1H, d, J=8. 0Hz), 7.3-7. 7 (7H, m), 7. 90 (2H, m), 8.16 (1H, s), 8.94 (1H, m), 9. 28 (1H, m) Ms: 422 (M+1) (6) 4-[[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2-hydroxyethyl]- amino] -5,6, 7,8-tetrahydro-2-naphthalenyl] benzoic acid hydrochloride H NMR (200MHz, DMSO-d6, b) : 1.7-2. 0 (1H, m), 2.1-2. 3 (1H, m), 2.5-3. 7 (7H, m), 5.07 (1H, m), 6. 38 (1H, m), 7.24 (1H, d, J=8. 0Hz), 7.3-7. 6 (6H, m), 7. 76 (2H, d, J=8.4Hz), 8.01 (2H, d, J=8.4Hz)

Ms: 422 (M+1) (7) [3-[[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2-hydroxyethyl]- amino] -5,6, 7, 8-tetrahydro-2-naphthalenyl] phenoxy] acetic acid hydrochloride 'H NMR (200MHz, DMSO-d6, 6) : 1. 7-2. 0 (1H, m), 2.1-2. 3 (1H, m), 2.5-3. 7 (7H, m), 4.79 (2H, s), 5.05 (1H, m), 6. 38 (1H, m), 6. 89 (1H, dd, J=8. 4,2. 2Hz), 7.0-7. 4 (1OH, m) Ms: 452 (M+1) (8) [4-[[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2-hydroxyethyl]- amino]-5, 6, 7, 8-tetrahydro-2-naphthalenyl] phenoxy] acetic acid hydrochloride 1H NMR (200MHz, DMSO-d6, #) : 1.7-2. 0 (1H, m), 2.1-2. 3 (1H, m), 2.5-3. 7 (7H, m), 4.71 (2H, s), 5.08 (1H, m), 6.38 (1H, m), 6.98 (2H, d, J=8.4Hz), 7.09 (1H, d, J=8.4Hz), 7.2-7. 7 (8H, m), 8.97 (1H, m), 9.41 (1H, m) Ms: 452 (M+1) (9) 3-[[(8S)-8-[[(2R)-2-(3-Chlorophenyl)-2-hydroxyethyl]- amino] -6,7, 8,9-tetrahydro-5H-benzo [a] cyclohepten-2- yl] oxy] benzoic acid hydrochloride oh NMR (200MHz, DMSO-d6, 6) : 1.2-1. 4 (1H, m), 1.7-2. 1 (2H, m), 2.2-2. 3 (1H, m), 2.7-3. 4 (7H, m), 4.99 (1H, m), 6.32 (1H, br. s), 6.85 (1H, dd, J=2.4, 8. OHz), 7.01 (1H, d, J=2.4Hz), 7.1-7. 6 (8H, m), 7.68 (1H, d, J=8Hz) Ms: 452 (M+1) (10) 4-[[(8S)-8-[[(2R)-2-(3-Chlorophenyl)-2-hydroxyethyl]- amino] -6,7, 8, 9-tetrahydro-5H-benzo [a] cyclohepten-2- yl] oxy] benzoic acid hydrochloride 1, H NMR (200MHz, DMSO-d6, 6) : 1.2-1. 4 (1H, m), 1.7-2. 3

(3H, m), 2. 7-3. 4 (7H, m), 5.0 (1H, m), 6.32 (1H, s), 6.9-7. 4 (9H, m), 7.93 (2H, d, J=8Hz) Ms: 452 (M+1) Example 5 To a solution of [3- [ [ (7S)-7- [N- [ (2R)-2- (3- chlorophenyl)-2-hydroxyethyl]-N- (tert-butoxycarbonyl)- amino] -5,6, 7, 8-tetrahydro-2-naphthalenyl] oxy] phenoxy] (tert- butyl) dimethylsilane (600 mg) in tetrahydrofuran (20 ml) was added tetrabutylammonium fluoride (5 ml, 1M solution in tetrahydrofuran) at room temperature and stirred for 3 hours.

The mixture was poured into a mixture of water and ethyl acetate and the organic layer was washed with 1N hydrochloric acid and brine respectively, then dried over magnesium sulfate. After filtration, the solvent was evaporated, and the residue was diluted in N, N- dimethylformamide (10 ml). To the solution were added potassium carbonate (1 g) and ethyl bromoacetate (0.5 ml) at room temperature and stirred for 4 hours. The mixture was poured into a mixture of water and ethyl acetate and the organic layer was washed with 1N hydrochloric acid and brine respectively, then dried over magnesium sulfate. After filtration, the solvent was evaporated, and the obtained residue was purified by column chromatography on silica gel to give [3-[[(7S)-7-[N-[(2R)-2-(3-Chlorophenyl)-2- hydroxyethyl]-N- (tert-butoxycarbonyl) amino] -5,6, 7,8- tetrahydro-2-naphthalenyl] oxy] phenoxy] acetic acid ethyl ester (450 mg).

1H NMR (200MHz, CDC13, 6) : 1. 25 (3H, t, J=6.8Hz), 1.51 (9H, s), 1.7-1. 9 (2H, m), 2.7-3. 0 (4H, m), 3.2-3. 4 (1H, m), 3.4-3. 7 (1H, m), 4.0-4. 2 (1H, m), 4.21 (2H, q, J=6.8Hz), 4.58 (2H, s), 4.8-5. 0 (1H, m), 6.5-6. 9 (5H, m), 7.0-7. 5 (6H, m) Ms: 618 (M+22)

Example 6 The following compounds were obtained according to a similar manner to that of Example 5.

(1) [4- [ [ (7S)-7- [N- [ (2R)-2- (3-Chlorophenyl)-2- hydroxyethyl]-N- (tert-butoxycarbonyl) amino] -5,6, 7,8- tetrahydro-2-naphthalenyl] oxy] phenoxy] acetic acid ethyl ester 1H NMR (200MHz, CDC13, 8) : 1.25 (3H, t, J=6. 8Hz), 1.51 (9H, s), 1.7-1. 9 (2H, m), 2.7-3. 0 (4H, m), 3.2-3. 4 (1H, m), 3.4-3. 7 (1H, m), 4.0-4. 2 (1H, m), 4.21 (2H, q, J=6.8Hz), 4.58 (2H, s), 4.8-5. 0 (1H, m), 6. 6-7. 0 (6H, m), 7.2-7. 3 (5H, m) Ms: 618 (M+22) (2) [3-[[7S)-7-[N-[(2R)-2-(3-Chlorophenyl)-2-hydroxyethyl]- N- (tert-butoxycarbonyl) amino]-5, 6,7, 8-tetrahydro-2- naphthalenyl] phenoxy] acetic acid ethyl ester 1H NMR (200MHz, CDC13, 8) : 1.30 (3H, t, J=7.4Hz), 1.51 (9H, s), 1.8-2. 0 (2H, m), 2.8-3. 1 (4H, m), 3.2-3. 7 (2H, m) 4.0-4. 3 (1H, m), 4.22 (2H, q, J=7.4Hz), 4.67 (2H, s), 4.93 (1H, m), 6.8-7. 0 (1H, m), 7.1- 7.5 (1OH, m) Ms: 601 (M+22) (3) [4- [ (7S)-7- [N- [ (2R)-2- (3-Chlorophenyl)-2-hydroxyethyll- N- (tert-butoxycarbonyl) amino]-5, 6,7, 8-tetrahydro-2- naphthalenyl] phenoxy] acetic acid ethyl ester 1H NMR (200MHz, CDC13, 8) : 1.30 (3H, t, J=7.4Hz), 1.55 (9H, s), 1.8-2. 0 (2H, m), 2.8-3. 1 (4H, m), 3.2-3. 7 (2H, m) 4.0-4. 3 (1H, m), 4.22 (2H, q, J=7.4Hz), 4.66 (2H, s), 4.92 (1H, m), 6.97 (2H, d, J=8Hz), 7.13 (1H, d, J=8Hz), 7. 2-7. 6 (8H, m) Ms: 601 (M+22)

Example 7 To a mixture of (7S)-7- [N- [ (2R)-2- (3-chlorophenyl)-2- hydroxyethyl]-N- (tert-butoxycarbonyl) amino] -2-hydroxy- 5, 6,7, 8-tetrahydronaphthalene (300 mg) in dimethyl sulfoxide (10 ml) were added ethyl 6-chloronicotinate (300 mg) and potassium carbonate (800 mg) at room temperature, and the mixture was stirred at 80°C for 2 hours. The resulting mixture was poured into a mixture of ethyl acetate and water, and the organic layer was washed with brine. After the solvent was evaporated under reduced pressure, the. residue was purified by column chromatography on silica gel to give 6- [ [ (7S)-7- [N- [ (2R)-2- (3-chlorophenyl)-2-hydroxyethyl]-N- (tert-butoxycarbonyl) amino-5, 6,7, 8-tetrahydro-2- naphthalenyl] oxy] nicotinic acid ethyl ester (300 mg).

1H NMR (200MHz, CDC13, 6) : 1.34 (3H, t, J=7. 0Hz), 1.52 (9H, s), 1.7-2. 0 (2H, m), 2.6-3. 0 (4H, m), 3.2-3. 6 (2H, m), 4.35 (2H, q, J=7. OHz), 4.90 (1H, m), 6.8- 7.2 (4H, m), 7.2-7. 4 (4H, m), 8.27 (1H, dd, J=2.2, 8.4Hz), 8.81 (1H, dd, J=2.2Hz) Ms: 589 (M+22) Example 8 The following compounds were obtained according to a similar manner to that of Example 7.

(1) 2-[[(7S)-7-[N-[(2R)-2-(3-Chlorophenyl)-2-hydroxyethyl]- N- (tert-butoxycarbonyl) amino] -5,6, 7,8-tetrahydro-2- naphthalenyl] oxy]-3-pyridylcarboxaldehyde 1H NMR (200MHz, CDC13, 8) : 1.56 (9H, s), 1.7-2. 0 (2H, m), 2.7-3. 0 (4H, m), 3.1-3. 7 (2H, m), 4.0-4. 2 (1H, m), 4. 88 (1H, m), 6.8-7. 2 (7H, m), 7.39 (1H, s), 8.23 (1H, dd, J=2.2, 7.2Hz), 8.36 (1H, dd, J=2.2Hz), 10.52 (1H, s) Ms: 523 (M+1)

(2) 5-[[(7S)-7-[N-[(2R)-2-(3-Chlorophenyl)-2-hydroxyethyl]- N- (tert-butoxycarbonyl) amino] -5,6, 7,8-tetrahydro-2- naphthalenyl] oxy]-2-thiophenecarboxaldehyde 1H NMR (200MHz, CDC13, 8) : 1.51 (9H, s), 1.7-2. 0 (2H, m), 2.7-3. 0 (4H, m), 3.1-3. 3 (1H, m), 2.3-2. 5 (1H, m), 4.0-4. 3 (1H, m), 4.8-5. 0 (1H, m), 6.5-6. 8 (2H, m), 6. 8-7. 6 (7H, m), 9. 70 (1H, s) Ms : 550 (M+22) (3) 4-[[(7S)-7-[N-[(2R)-2-(3-Chlorophenyl)-2-hydroxyethyl]- N- (tert-butoxycarbonyl) amino] -6,7, 8,9-tetrahydro-5H- benzo [a] cyclohepten-2-ylloxylbenzoic acid methyl ester 1H NMR (200MHz, CDC13, 8) : 1.2-1. 5 (1H, m), 1.51 (9H, s), 1.8-2. 1 (2H, m), 2.5-2. 8 (3H, m), 3.2-3. 7 (4H, m) 4.9-5. 1 (2H, m), 6.5-6. 6 (2H, m), 6.8-7. 1 (2H, m), 7.2-7. 7 (5H, m), 9.70 (1H, s) Ms: 564 (M+22) Example 9 To a mixture of 2- [ [ (7S)-7- [N- [ (2R)-2- (3-chlorophenyl)- 2-hydroxyethyl]-N- (tert-butoxycarbonyl) amino] -5,6, 7,8- tetrahydro-2-naphthalenyl] oxy]-3-pyridylcarboxaldehyde (300 mg), acetonitrile (5 ml), pH 4 buffer solution (sodium dihydrogenphosphate) (0.25 ml), and 30% hydrogen peroxide solution (0.12 ml), sodium chlorite (500 mg) was added at room temperature. The reaction mixture was stirred at the same temperature for 4 hours, diluted with ethyl acetate (50 ml), washed with water followed by brine, dried over magnesium sulfate, and evaporated to give the corresponding acid. The obtained acid was diluted with 6N hydrogen chloride in dioxane (10 ml) and the mixture was allowed to keep at room temperature for 4 hours. The mixture was evaporated under reduced pressure and the obtained solid was washed with ethyl ether to give 2- [ [ (7S)-7- [ [ (2R)-2- (3- chlorophenyl)-2-hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2-

naphthalenyl] oxy] nicotinic acid hydrochloride (200 mg).

1H NMR (200MHz, DMSO-d6, 5) : 1.7-2. 0 (1H, m), 2.3-2. 5 (1H, m), 2.7-3. 7 (7H, m), 5.12 (1H, m), 6.37 (1H, m), 6.7-7. 0 (2H, m), 7.1-7. 3 (2H, m), 7.4-7. 7 (4H, m), 8.1-8. 3 (2H, m), 8.9 (1H, m), 9.5 (1H, m), Ms: 439 (M+1) Example 10 To a mixture of 2- [ [ (7S)-7- [N- [ (2R)-2- (3-chlorophenyl)- . 2-hydroxyethyl]-N- (tert-butoxycarbonyl) amino] -5,6, 7,8- tetrahydro-2-naphthalenyl] oxy]-3-pyridylcarboxaldehyde (300 mg) in toluene (20 ml) was added (carbethoxymethylene) triphenylphosphorane (300 mg) at room temperature. The reaction mixture was stirred at 120°C for 4 hours, and evaporated under reduced pressure. The residue was purified by column chromatography on silica gel to give the ester. To a solution of the ester in methanol (10 ml) was added 1N sodium hydroxide (5 ml) at room temperature, and the mixture was stirred at the same temperature for 12 hours. The resulting mixture was evaporated under reduced pressure. The residue was diluted with a mixture of ethyl acetate (30 ml) and 1N hydrochloric acid (10 ml), and the organic layer was washed with brine, dried over magnesium sulfate, and evaporated under reduced pressure. The obtained acid was diluted with 6N hydrogen chloride in dioxane (10 ml) and the mixture was allowed to keep at room temperature for 4 hours. The mixture was evaporated under reduced pressure and the obtained solid was washed with ethyl ether to give 3- [2- [ [ (7S)-7- [ [ (2R)-2- (3-chloro- phenyl) -2-hydroxyethyl] amino-5, 6, 7, 8-tetrahydro-2- naphthalenyl]-oxy]-3-pyridyl]-2-propenoic acid hydrochloride (180 mg).

1H NMR (200MHz, DMSO-d6, 5) : 1.7-2. 0 (1H, m), 2.3-2. 5 (1H, m), 2.7-3. 7 (7H, m), 5.12 (1H, m), 6.13 (1H, d, J=12. 4Hz), 6.8-7. 5 (8H, m), 7.80 (1H, d,

J=12. 4Hz), 8.1-8. 3 (2H, m), 8.97 (1H, m), 9. 40 (1H, m) Ms: 465 (M+1) Example 11 The following compound was obtained according to a similar manner to that of Example 7 and then according to a similar manner to that of Example 10.

3-[6-[[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2-hydroxy- ethyl] amino] -5, 6,7, 8-tetrahydro-2-naphthalenyl] oxy]-3- pyridyl]-2-propenoic acid hydrochloride 1H NMR (200MHz, DMSO-d6, 5) : 1.8-2. 0 (1H, m), 2.2-2. 5 (1H, m), 2.6-3. 3 (7H, m), 5.14 (1H, m), 6.57 (1H, d, J=16.2Hz), 6.8-7. 2 (4H, m), 7.3-7. 5 (4H, m), 7.58 (1H, d, J=16.2Hz), 8.23 (1H, dd, J=2.2, 8.8Hz), 8. 40 (1H, d, J=2. 2Hz), 9.07 (1H, m), 9.7 (1H, m) Ms: 465 (M+1) Example 12 To a mixture of (7S)-7- [N- [ (2R)-2- (3-chlorophenyl)-2- hydroxyethyl]-N- (tert-butoxycarbonyl) amino] -2-hydroxy- 5,6, 7, 8-tetrahydronaphthalene (300 mg) in dimethyl sulfoxide (10 ml) were added 2-chloro-3-cyanopyridine (100 mg) and potassium carbonate (800 mg) at room temperature, and the mixture was stirred at 80°C for 2 hours. The resulting mixture was poured into a mixture of ethyl acetate and water, and the organic layer was washed with brine. After the solvent was evaporated under reduced pressure, the residue was diluted in N, N-dimethylformamide (5 ml). To the mixture were added sodium azide (100 mg) and ammonium chloride (200 mg), and stirred at 120°C for 12 hours. The resulting mixture was poured into a mixture of ethyl acetate and water, and the organic layer was washed with brine. After the

solvent was evaporated under reduced pressure, the residue was purified by column chromatography on silica gel to give the corresponding tetrazole (190 mg). The obtained terazole was diluted with 6N hydrogen chloride in dioxane (10 ml) and the mixture was allowed to keep at room temperature for 4 hours. The mixture was evaporated under reduced pressure and the obtained solid was washed with ethyl ether to give (1R)-1-(3-chlorophenyl)-2-[[(2S)-7-[[3-(1H-tetrazol-5-yl)-2- pyridyl] oxy]-1, 2, 3, 4-tetrahydro-2-naphthalenyl] amino] ethanol hydrochloride (150 mg).

H NMR (200MHz, DMSO-d6, 6) : 1.7-2. 0 (1H, m), 2.3-2. 5 (1H, m), 2.7-3. 7 (7H, m), 5. 08 (1H, m), 6.38 (1H, m), 7.0-7. 6 (8H, m), 8.29 (1H, m), 8. 50 (1H, m), 8.96 (1H, m), 9.43 (1H, m) Ms: 463 (M+1) Example 13 The following compounds were obtained according to a similar manner to that of Example 9.

(1) 5-[[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2-hydroxyethyl]- amino] -5,6, 7, 8-tetrahydro-2-naphthalenyl] oxy]-2- thiophenecarboxylic acid hydrochloride oh NMR (200MHz, DMSO-d6, 6) : 1.8-2. 2 (2H, m), 2.4-3. 4 (7H, m), 5. 05 (1H, m), 6. 36 (1H, m), 6.5-7. 5 (9H, m), 8.93 (1H, m), 9.38 (1H, m) Ms: 444 (M+1) (2) 5-[[(8S)-8-[[(2R)-2-(3-Chlorophenyl)-2-hydroxyethyl]- amino] -6,7, 8,9-tetrahydro-5H-benzo [a] cyclohepten-2- yl] oxy]-2-thiophenecarboxylic acid hydrochloride 1H NMR (200MHz, DMSO-d6, b) : 1.2-1. 5 (1H, m), 1.7-2. 3 (3H, m), 2.5-3. 3 (7H, m), 4.97 (1H, m), 6.33 (1H, br. s), 6.62 (1H, d, J=8.4Hz), 7.0-7. 6 (8H, m), 8.75 (1H, m), 8.99 (1H, m)

Ms: 458 (M+1) Example 14 The following compounds were obtained according to a similar manner to that of Example 10.

(1) 3-[5-[[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2- hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2-naphthalenyl] - oxy] -2-thienyl] -2-propenoic acid hydrochloride 1H NMR (200MHz, DMSO-d6, 5) : 1.7-2. 0 (1H, m), 2.3-2. 5 (1H, m), 2.7-3. 7 (7H, m), 5.06 (1H, m), 6.3-6. 7 (4H, m), 6.8-7. 4 (5H, m), 8.89 (1H, m), 9.19 (1H, m) Ms: 470 (M+l) (2) 3-[5-[[(8S)-8-[[(2R)-2-(3-Chlorophenyl)-2- hydroxyethyl] amino]-6, 7, 8, 9-tetrahydro-5H- benzo [a] cyclohepten-2-yl] oxy]-2-thienyl]-2-propenoic acid hydrochloride 1H NMR (200MHz, DMSO-d6, 8) : 1.1-1. 3 (1H, m), 1.7-2. 2 (3H, m), 2.5-3. 5 (7H, m), 4.96 (1H, m), 6.33 (1H, m), 6.5-7. 6 (9H, m), 8. 72 (1H, m), 8.95 (1H, m) Ms: 484 (M+1) Example 15 To a, mixture of (7S)-7- [N- [ (2R)-2- (3-chlorophenyl)-2- hydroxyethyl]-N- (tert-butoxycarbonyl) amino]-2-hydroxy- 5,6, 7,8-tetrahydronaphthalene (400 mg) in dichloromethane (10 ml) were added 2,6-lutidine (0.22 ml) and trifluoromethanesulfonic anhydride (0.16 ml) at-78°C under nitrogen, then stirred for 1 hour at the same temperature.

The mixture was poured into water and the organic layer was washed with 1N-hydrochloric acid and brine respectively, then dried over magnesium sulfate. After filtration, the solvent was evaporated, and the obtained residue was

purified by column chromatography on silica gel to give the corresponding sulfonate. To a solution of the sulfonate in diethoxymethane (10 ml) were added (3-methoxycarbonyl- phenyl) boronic acid (200 mg) and tetrakis- (triphenylphosphine) palladium (O) (110 mg) and 2N sodium carbonate (2 mg) at room temperature, and the mixture was stirred at 80°C for 2 hours. The resulting mixture was filtrated by celite and the mother layer was evaporated under reduced pressure. The residue was purified by column chromatography on silica gel to give 3- [ (7S)-7- [N- [ (2R)-2- (3-chlorophenyl)-2-hydroxyethyl]-N- (tert-butoxycarbonyl)- amino] -5,6, 7, 8-tetrahydro-2-naphthalenyl] benzoic acid methyl ester (350 mg).

1H NMR (200MHz, CDC13, 6) : 1.52 (9H, s), 1.8-2. 0 (2H, m), 2.8-3. 1 (4H, m), 3.2-3. 7 (2H, m), 3.95 (3H, s), 4.0-4. 3 (1H, m), 4.93 (1H, m), 7.0-7. 5 (8H, m), 7. 78 (1H, d, J=8Hz), 7.99 (1H, d, J=8Hz), 8. 26 (1H, s) Ms: 558 (M+22) Example 16 The following compounds were obtained according to a similar manner to that of Example 15.

(1) 4- [ (7S)-7- [N- [ (2R)-2- (3-Chlorophenyl)-2-hydroxyethyl]- N- (tert-butoxycarbonyl) amino]-5, 6,7, 8-tetrahydro-2- naphthalenyl] benzoic acid methyl ester 1H NMR (200MHz, CDC13, 5) : 1.52 (9H, s), 1.8-2. 0 (2H, m), 2.8-3. 1 (4H, m), 3.2-3. 7 (2H, m), 3.94 (3H, s), 4.0-4. 3 (1H, m), 4.93 (1H, m), 7.1-7. 4 (8H, m), 7.64 (2H, d, J=8. 4Hz), 8.09 (2H, d, J=8. 4Hz), 8.48 (1H, s) Ms : 558 (M+22) (2) [3- [ (7S)-7- [N- [ (2R)-2- (3-Chlorophenyl)-2-hydroxyethyl]-

N- (tert-butoxycarbonyl) amino]-5, 6,7, 8-tetrahydro-2- naphthalenyl] phenoxy] (tert-butyl) dimethylsilane 1H NMR (200MHz, CDC13, 8) : 0. 19 (6H, s), 0.96 (9H, s), 1.54 (9H, s), 1.8-2. 0 (2H, m), 2. 8-3. 1 (4H, m), 3.2-3. 7 (2H, m), 4.0-4. 3 (1H, m), 4.9 (1H, m), 6.8-7. 0 (1H, m), 7.0-7. 4 (10H, m) Ms: 630 (M+22) (3) [4- [ (7S)-7- [N- [ (2R)-2- (3-Chlorophenyl)-2-hydroxyethyl]- N- (tert-butoxycarbonyl) amino] -5,6, 7,8-tetrahydro-2- naphthalenyl] phenoxy] (tert-butyl) dimethylsilane 1H NMR (200MHz, CDC13, 8) : 0.21 (6H, s), 1.01 (9H, s), 1.57 (9H, s), 1.8-2. 0 (2H, m), 2.8-3. 1 (4H, m), 3.2-3. 7 (2H, m), 4.0-4. 3 (1H, m), 4.9 (1H, m), 6. 89 (2H, d, J=8Hz), 7.12 (1H, d, J=8Hz), 7.2-7. 5 (8H, m) Ms: 630 (M+22) Preparation 3 The following compound was obtained according to a similar manner to that of Preparation 8.

(7S)-7-[[(Benzyloxy) carbonyl] amino]-5, 6,7, 8-tetrahydro- 2-naphthalenyl trifluoromethanesulfonate Ms (m/z): 430 (M+1) Preparation 4 To a solution of (7S)-7- [ [ (benzyloxy) carbonyl] amino]- 5,6, 7,8-tetrahydro-2-naphthalenyl trifluoromethanesulfonate (750 mg) in 1,2-dimethoxyethane (15 ml) was added 4- (methoxycarbonyl) phenylboronic acid (440 mg), tetrakis (triphenylphosphine) palladium (101 mg) and aqueous solution of sodium carbonate (2M, 7 ml), and the mixture was stirred at 75°C for 10 hours under nitrogen. The mixture was diluted with ethyl acetate and water. The organic layer

was separated, washed with brine, dried over magnesium sulfate and evaporated. The residue was purified by column chromatography on silica gel (hexane/ethyl acetate = 2/1) to give methyl 4- [ (7S)-7- [ [ (benzyloxy) carbonyl] amino] -5, 6,7, 8- tetrahydro-2-naphthalenyl] benzoate (580 mg) as a colorless powder.

Ms (m/z): 416 (M+1) Preparation 5 The following compounds were obtained according to a similar manner to that of Example 25 starting from the object compound of Preparation 4 or 3.

(1) Methyl 4- [ (7S)-7-amino-5, 6,7, 8-tetrahydro-2- naphthalenyl] benzoate Ms (m/z): 282 (M+1) (2) (7S) -7-Amino-5, 6,7, 8-tetrahydro-2-naphthalenol Ms (m/z): 164 (M+1) (3) Ethyl 6- [ (7S)-7-amino-5, 6,7, 8-tetrahydro-2- naphthalenyl] nicotinate (+) ESI-Ms (m/z): 297 (M+1) + Preparation 6 The following compound was obtained according to a similar manner to that of Example 17.

(7S)-7- [ [ (2R)-2- (4-Chlorophenyl)-2-hydroxyethyl] amino]- 5,6, 7,8-tetrahydro-2-naphthalenol Ms (m/z): 318 (M+1) Preparation 7 To a solution of ethyl (7S)-7- [ [ (2R)-2- (4- chlorophenyl)-2-hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2-

naphthalenol (9.75 g) in tetrahydrofuran (100 ml) was added di-tert-butyl dicarbonate (6.7 g), and the mixture was stirred at room temperature for 2 hours. The mixture was evaporated. The residue was purified by column chromatography on silica gel (hexane/ethyl acetate = 2/1) to give tert-butyl [ (2R)-2- (4-chlorophenyl)-2- hydroxyethyl] [(2S)-7-hydroxy-1, 2,3, 4-tetrahydro-2- naphthalenyl] carbamate (12.22 g) as a colorless foam.

Ms (m/z): 418 (M+1) Preparation 8 Under nitrogen at-60°C, to a solution of tert-butyl [ (2R)-2- (4-chlorophenyl)-2-hydroxyethyl] [ (2S)-7-hydroxy- 1, 2,3, 4-tetrahydro-2-naphthalenyl] carbamate (6.04 g) and 2,6-lutidine (3.37 ml) in dichloromethane (100 ml) was added trifluoromethanesulfonic anhydride (2.43 ml), and the mixture was stirred at the same temperature for 1 hour. The resulting mixture was poured into aqueous ammonia and the aqueous mixture was extracted with ethyl acetate. The organic layer was washed successively with 1N hydrochloric acid, water, saturated aqueous sodium bicarbonate and brine, dried over anhydrous magnesium sulfate and evaporated under reduced pressure. The residue was purified by column chromatography on silica gel (hexane/ethyl acetate = 1/1) to give (7S)-7- [-N- (tert-butoxycarbonyl)-N- [ (2R)-2- (4- chlorophenyl) -2-hydroxyethyl] amino] -5, 6,7, 8-tetrahydro-2- naphthalenyl trifluoromethanesulfonate (6.56 g) as a colorless foam.

Ms (m/z): 550 (M+1) Preparation 9 To a solution of AD mix-beta (10.1 g) (cf. JOC vol. 57, No. 10,1992, 2768-2771) in a mixture of tert-butanol (60 ml) and water (60 ml) was added 1-chloro-4-vinylbenzene (1.0 g) on ice-cooling and the mixture was stirred at the same

temperature for 4 hours. To the mixture was added sodium sulfite (19 g). The resulting mixture was poured into saturated aqueous sodium bicarbonate solution, and extracted with ethyl acetate. The organic layer was washed with brine, dried over magnesium sulfate, and evaporated in vacuo to give (lR)-1-(4-chlorophenyl)-1, 2-ethanediol (1.04 g) as a colorless oil.

NMR (CDC13, 5) : 3.50-3. 80 (2H, m), 4.70-4. 85 (1H, m), 7.20-7. 40 (4H, m) Preparation 10 Trimethylsilyl chloride (0.956 ml) was added to the solution of (lR)-l- (4-chlorophenyl)-1, 2-ethanediol (1.0 g) and trimethyl orthoacetate (0. 87 ml) in dichloromethane (30 ml) on ice-cooling. The solution was stirred for 1 hour and evaporated. The crude product was dissolved in dry methanol and potassium carbonate (1.97 g) was added. The suspension was stirred vigorously for 100 minutes, then filtered and the residue was washed with dichloromethane. The filtrate was washed with brine, dried over magnesium sulfate, and evaporated in vacuo to give (2R)-2- (4-chlorophenyl) oxirane (700 mg) as a colorless oil.

NMR (CDC13, 8) : 2.75 (1H, dd, J=2.5, 5.5Hz), 3.14 (1H, dd, J=4.0, 5.5Hz), 3.80-3. 86 (1H, m), 7.18-7. 40 (4H, m) Preparation 11 To a solution of methyl 4-bromo-2-methoxybenzoate (2.0 g) in 1,4-dioxane (40 ml) was added bis (pinacolato) diboron (2. 07 g), dichlorobis (triphenylphosphine) palladium (II) (286 mg) and potassium acetate (2. 4 g), and the mixture was stirred at 95°C for 10 hours under nitrogen. The mixture was diluted with ethyl acetate and water. The organic layer was separated, washed with brine, dried over magnesium sulfate and evaporated. The residue was purified by column

chromatography on silica gel (hexane/ethyl acetate = 3/1) to give methyl 2-methoxy-4- (4, 4,5, 5-tetramethyl-1, 3,2- dioxaborolan-2-yl) benzoate (2.0 g).

Ms (m/z): 293 (M+1) Preparation 12 To a suspension of methyl 2-methoxy-4- (4, 4,5, 5- tetramethyl-1, 3,2-dioxaborolan-2-yl) benzoate (2.0 g) in a mixture of acetone (70 ml) and water (70 ml) were added ammonium acetate (1. llg) and sodium periodate (3.08 g), and the mixture was stirred at room temperature for 15 hours.

The solvent was evaporated and the residue was diluted with ethyl acetate. The organic layer was separated, washed with water and brine, dried over magnesium sulfate and evaporated under reduced pressure to give [3-methoxy-4- (methoxycarbonyl) phenyllboronic acid (1.4 g) as a colorless powder.

Ms (m/z): 209 (M-1) Example 17 A solution of methyl 4- [ (7S)-7-amino-5, 6,7, 8- tetrahydro-2-naphthalenyl] benzoate (142 mg), and (2R)-2- (4- chlorophenyl) oxirane (70.2 mg) in ethanol (10 ml) was refluxed for 18 hours. The mixture was evaporated in vacuo.

The residue was purified by column chromatography on silica gel (chloroform/methanol = 100/1) to give methyl 4- [ (7S)-7- [ [ (2R)-2- (4-chlorophenyl)-2-hydroxyethyl] amino]-5, 6,7, 8- tetrahydro-2-naphthalenyl] benzoate (130 mg) as a colorless foam.

Ms (m/z): 436 (M+1) Example 18 The following compound was obtained according to a similar manner to that of Example 17.

Methyl 4- [ (7S)-7- [ [ (2R)-2- (6-chloro-3-pyridyl)-2- hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2-naphthalenyl]- benzoate Ms (m/z): 437 (M+1) Example 19 To a solution of methyl 4- [ (7S)-7- [ [ (2R)-2- (4- chlorophenyl)-2-hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2- naphthalenyl] benzoate (130 mg) in methanol (5.0 ml) was added 1N sodium hydroxide (0.688 ml) and the mixture was stirred for 2 hours at room temperature. The mixture was evaporated in vacuo to give sodium 4- [ (7S)-7- [ [ (2R)-2- (4- chlorophenyl)-2-hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2- naphthalenyl] benzoate (120 mg) as a colorless powder.

NMR (DMSO-d6, 8) : 1.40-1. 60 (1H, m), 1.90-2. 10 (1H, m), 2.50-3. 20 (6H, m), 4.60-4. 70 (1H, m), 7.05 (1H, d, J=8Hz), 7.30-7. 40 (6H, m), 7.50 (2H, d, J=8Hz), 7.90 (2H, d, J=8Hz) Ms (m/z): 422 (M+1) Example 20 The following compound was obtained according to a similar manner to that of Preparation 4.

Methyl 4-[[(7S)-7-[N-(tert-butoxycarbonyl)-N-[(2R)-2-(4- chlorophenyl)-2-hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2- naphthalenyl]-2-methoxybenzoate Ms (m/z): 566 (M+1) Example 21 The following compound was obtained according to a similar manner to that of Example 26.

4-[[(7S)-7-[[(2R)-2-(4-Chlorophenyl)-2-hydroxyethyl]- amino] -5,6, 7, 8-tetrahydro-2-naphthalenyl]-2-methoxybenzoic

acid hydrochloride NMR (DMSO-d6, b) : 1. 80-1. 90 (1H, m), 2. 30-2. 40 (1H, m), 2.80-3. 20 (6H, m), 3.90 (3H, s), 5.00-5. 05 (1H, m), 7.10-7. 30 (3H, m), 7.50-7. 60 (6H, m), 7.70 (2H, d, J=8Hz) Ms (m/z): 452 (M+1) Example 22 The following compound was obtained according to a similar manner to that of Preparation 7.

Methyl 4- [ (7S)-7- [N- (tert-butoxycarbonyl)-N- [ (2R)-2- (6- chloro-3-pyridyl) -2-hydroxyethyl] amino] -5, 6,7, 8-tetrahydro- 2-naphthalenyl] benzoate Ms (m/z): 537 (M+1) Example 23 To a solution of methyl 4- [ (7S)-7- [N- (tert- butoxycarbonyl)-N- [ (2R)-2- (6-chloro-3-pyridyl)-2- hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2-naphthalenyl]- benzoate (1.0 g) in ethanol (15.0 ml) was added 1N sodium hydroxide (5.0 ml) and the mixture was stirred for 2 hours at room temperature. The mixture was diluted with ethyl acetate and 1N hydrochloric acid. The organic layer was separated, washed with brine, dried over magnesium sulfate and evaporated. The residue was purified by column chromatography on silica gel (hexane/ethyl acetate = 1/1) to give 4- [ (7S)-7- [N- (tert-butoxycarbonyl)-N- [ (2R)-2-hydroxy-2- (6-chloro-3-pyridyl) ethyl] amino] -5, 6,7, 8-tetrahydro-2- naphthalenyl] benzoic acid (800 mg) as a colorless foam.

Ms (m/z): 523 (M+1) Example 24 The following compound was obtained according to a similar manner to that of Example 23.

4- [ (7S)-7- [N- (tert-Butoxycarbonyl)-N- [ (2R)-2- (4- chlorophenyl)-2-hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2- naphthalenyl] -2-methoxybenzoic acid Ms (m/z): 552 (M+1) Example 25 4- [ (7S)-7- [N- (tert-Butoxycarbonyl)-N- [ (2R)-2-hydroxy-2- (6-chloro-3-pyridyl) ethyl] amino]-5, 6,7, 8-tetrahydro-2- naphthalenyl] benzoic acid (800 mg), ammonium formate (300 mg) and palladium on carbon powder (100 mg) in a mixture of methanol (25 ml) and water (5.0 ml) was refluxed for 15 minutes. The reaction mixture was filtrated and poured into water and extracted with ethyl acetate. The organic layer was washed with brine, dried over magnesium sulfate, and evaporated in vacuo. A mixture of the residue was purified by column chromatography on silica gel (chloroform/methanol = 99/1) to give 4- [ (7S)-7- [N- (tert-butoxycarbonyl)-N- [ (2R)- 2-hydroxy-2- (3-pyridyl) ethyl] amino]-5, 6,7, 8-tetrahydro-2- naphthalenyl] benzoic acid (620 mg) as a colorless foam.

Ms (m/z): 489 (M+1) Example 26 A solution of 4- [ (7S)-7- [N- (tert-butoxycarbonyl)-N- [ (2R)-2-hydroxy-2- (3-pyridyl) ethyl] amino]-5, 6,7, 8- tetrahydro-2-naphthalenyl] benzoic acid (620 mg) and 4N hydrogen chloride in dioxane (10 ml) was stirred at room temperature for 24 hours. The resultant solid was collected by filtration and dried to give 4- [ (7S)-7- [ [ (2R)-2-hydroxy- 2- (3-pyridyl) ethyl] amino] -5, 6,7, 8-tetrahydro-2- naphthalenyl] benzoic acid dihydrochloride (450 mg) as a white solid.

NMR (DMSO-d6, 8) : 1. 80-1. 90 (1H, m), 2. 30-2. 40 (1H, m), 2.80-3. 50 (6H, m), 5.30-5. 40 (1H, m), 7. 20 (1H, d, J=8Hz), 7.40-7. 50 (2H, m), 7.77 (2H, d, J=8Hz),

7.90-8. 05 (3H, m), 8.60 (1H, d, J=8Hz), 8. 88 (1H, d, J=8Hz), 8.99 (1H, s) Preparation 13 To a solution of 4-bromo-2-fluorobenzoate (1.5 g) in N, N-dimethylformamide (30 ml) was added bis (pinacolate)- diboron (1. 8 g), 1, 1'-bis (diphenylphosphino) - ferrocenedichlorobispalladium (II), complex with dichloromethane (263 mg) and potassium acetate (1.9 g), and the mixture was stirred at 100°C for 18 hours under nitrogen.

The mixture was diluted with ethyl acetate and water. The organic layer was separated, washed with brine, dried over magnesium sulfate and evaporated. The residue was purified by column chromatography on silica gel (hexane/ethyl acetate = 5/1) to give methyl 2-fluoro-4- (4, 4,5, 5-tetramethyl-1, 3,2- dioxaborolan-2-yl) benzoate (350 mg).

(+) ESI-MS (m/z): 303 (M+Na) + Preparation 14 The following compound was obtained according to a similar manner to that of Preparation 13.

Benzyl (2S)-7- (4, 4,5, 5-tetramethyl-1, 3,2-dioxaborolan- 2-yl)-1, 2,3, 4-tetrahydro-2-naphthalenylcarbamate (+) ESI-MS (m/z): 430 (M+Na) + Preparation 15 To a solution of (7S)-7- [ [ (benzyloxy) carbonyl] amino]- 5, 6, 7,8-tetrahydro-2-naphthalenyl trifluoromethanesulfonate (750 mg) in 1,2-dimethoxyethane (15 ml) was added 4- (methoxycarbonyl) phenylboronic acid (440 mg), tetrakis (triphenylphosphine) palladium (101 mg) and aqueous solution of sodium carbonate (2M, 7 ml), and the mixture was stirred at 75°C for 10 hours under nitrogen. The mixture was diluted with ethyl acetate and water. The organic layer

was separated, washed with brine, dried over magnesium sulfate and evaporated. The residue was purified by column chromatography on silica gel (hexane/ethyl acetate = 2/1) to give methyl 4- [ (7S)-7- [ [ (benzyloxy) carbonyl] amino]-5, 6,7, 8- tetrahydro-2-naphthalenyl] benzoate (580 mg) as a colorless powder.

MS (m/z): 416 (M+1) Preparation 16 The following compounds were obtained according to a similar manner to that of Preparation 15.

(1) Ethyl 4- [ (7S)-7- [ [ (benzyloxy) carbonyl] amino] -5, 6,7, 8- tetrahydro-2-naphthalenyl]-3-methoxybenzoate MS (m/z): 460 (M+1) (2) Ethyl 6- [ (7S)-7- [ [ (benzyloxy) carbonyl] amino] -5, 6,7, 8- tetrahydro-2-naphthalenyl] nicotinate (+) ESI-MS (m/z): 453 (M+Na) + Preparation 17 A solution of methyl 4- [ (7S)-7- [ [ (benzyloxy) carbonyll- amino] -5,6, 7, 8-tetrahydro-2-naphthalenyl] benzoate (580 mg), ammonium formate (300 mg) and palladium on carbon powder (100 mg) in methanol (25 ml) and water (5.0 ml) was refluxed for 15 minutes. The reaction mixture was filtrated and poured into water and extracted with ethyl acetate. The organic layer was washed with brine, dried over magnesium sulfate, and evaporated in vacuo. A mixture of the residue was chromatographed (chloroform-methanol) over silica gel to give methyl 4- [ (7S)-7-amino-5, 6,7, 8-tetrahydro-2- naphthalenyl] benzoate (450 mg) as a colorless foam.

MS (m/z): 282 (M+1) Preparation 18

The following compounds were obtained according to a similar-manner to that of Preparation 17.

(1) (7S) -7-Amino-5, 6,7, 8-tetrahydro-2-naphthalenol MS (m/z): 164 (M+1) (2) Ethyl 4- [ (7S)-7-amino-5, 6,7, 8-tetrahydro-2- naphthalenyl]-3-methoxybenzoate MS (m/z): 326 (M+1) (3) Ethyl 1- [ (7S)-7-amino-5, 6,7, 8-tetrahydro-2- naphthalenyl]-4-piperidinecarboxylate MS (m/z): 303 (M+1) (4) Methyl 5- [ [ (7S)-7-amino-5, 6,7, 8-tetrahydro-2- naphthalenyl] oxy]-2- (1-pyrrolidinyl) benzoate (+) ESI-MS (m/z): 367 (M+1) + Preparation 19 A solution of (7S) -7-amino-5, 6,7, 8-tetrahydro-2- naphthalenol (11.2 g) and (2R)-2- (4-chlorophenyl) oxirane (9.02 g) in ethanol (10 ml) was refluxed for 18 hours. The mixture was evaporated in vacuo. The residue was purified by column chromatography on silica gel (chloroform: methanol = 100: 1) to give (7S)-7- [ [ (2R)-2- (4-chlorophenyl)-2- hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2-naphthalenol (9.74 g) as a colorless foam.

MS (m/z) : 318 (M+1) Preparation 20 The following compounds were obtained according to a similar manner to that of Preparation 19.

(1) (7S)-7-[[(2R)-2-(6-Chloro-3-pyridyl)-2-hydroxyethyl]- amino] -5,6, 7,8-tetrahydro-2-naphthalenol

MS (m/z): 319 (M+1) (2) (7S)-7- [N-Benzyl-N- [ (2R)-2- (6-chloro-3-pyridyl)-2- hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2-naphthalenol MS (m/z) : 409 (M+1) (3) (7S)-7- [ [ (2R)-2-Hydroxy-2- (4-methylphenyl) ethyl] amino]- 5, 6, 7, 8-tetrahydro-2-naphthalenol MS (m/z): 298 (M+1) (4) (7S)-7- [ [ (2R)-2- (5, 6-Dichloro-3-pyridyl) -2- hydroxyethyl] amino] -5, 6,7, 8-tetrahydro-2-naphthalenol MS (m/z): 353 (M+1) Preparation 21 To a solution of ethyl (7S)-7- [ [ (2R)-2- (4- chlorophenyl)-2-hydroxyethyl] amino-5, 6,7, 8-tetrahydro-2- naphthalenol (9.75 g) in tetrahydrofuran (100 ml) was added di-tert-butyl dicarbonate (6.7 g), and the mixture was stirred at room temperature for 2 hours. The mixture was evaporated. The residue was purified by column chromatography on silica gel (hexane/ethyl acetate = 2/1) to give tert-butyl N- [ (2R)-2- (4-chlorophenyl)-2-hydroxyethyl]- N-[(2S)-7-hydroxy-1, 2,3, 4-tetrahydro-2-naphthalenyl]- carbamate (12.22 g) as a colorless foam.

MS (m/z): 418 (M+1) Preparation 22 The following compounds were obtained according to a similar manner to that of Preparation 21.

(1) tert-Butyl N-[(2R)-2-[6-chloro-3-pyridyl)-2- hydroxyethyl]-N-[(2S)-7-hydroxy-1, 2,3, 4-tetrahydro-2- naphthalenyl] carbamate MS (m/z): 419 (M+1)

(2) tert-Butyl N- [ (2R)-2-hydroxy-2- (4-methylphenyl) ethyl] - N-[(2S)-7-hydroxy-1, 2,3, 4-tetrahydro-2-naphthalenyl] - carbamate MS (m/z): 398 (M+1) (3) tert-Butyl N- [ (2R)-2- (5, 6-dichloro-3-pyridyl) -2- hydroxyethyl]-N-[(2S)-7-hydroxy-1, 2,3, 4-tetrahydro-2- naphthalenyl] carbamate MS (m/z): 475 (M+Na) Preparation 23 Under nitrogen at-60°C, to a solution of tert-butyl N- <BR> <BR> <BR> [(2R)-2-(4-chlorophenyl)-2-hydroxyethyl]-N-[(2S)-7-hydroxy- 1, 2,3, 4-tetrahydro-2-naphthalenyl] carbamate (6.04 g) and 2,6-lutidine (3.37 ml) in dichloromethane (100 ml) was added trifluoromethanesulfonic anhydride (2.43 ml), and the mixture was stirred at the same temperature for 1 hour. The mixture was diluted with ethyl acetate and water. The organic layer was separated and washed successively with 1N hydrochloric acid, water, saturated aqueous sodium bicarbonate and brine, dried over anhydrous magnesium sulfate and evaporated under reduced pressure. The residue was purified by column chromatography on silica gel (hexane/ethyl acetate = 1: 1) to give (7S)-7- [N- (tert- butoxycarbonyl)-N- [ (2R)-2- (4-chlorophenyl)-2- hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2-naphthalenyl trifluoromethanesulfonate (6.56 g) as a colorless foam.

MS (m/z): 550 (M+1) Preparation 24 The following compounds were obtained according to a similar manner to that of Preparation 23.

(1) (7S)-7- [ [ (Benzyloxy) carbonyl] amino-5, 6,7, 8-tetrahydro-

2-naphthalenyl trifluoromethanesulfonate MS (m/z): 430 (M+1) (2) (7S)-7-[N-(tert-Butoxycarbonyl)-N-[(2R)-2-(5, 6- dichloro-3-pyridyl)-2-hydroxyethyl] amino]-5, 6,7, 8- tetrahydro-2-naphthalenyl trifluoromethanesulfonate MS (m/z): 585 (M+1) (3) (7S)-7- [N- (tert-Butoxycarbonyl)-N- [ (2R)-2-hydroxy-2- (4- methylphenyl) ethyl] amino]-5, 6,7, 8-tetrahydro-2- naphthalenyl trifluoromethanesulfonate MS (m/z) : 530 (M+1) (4) (7S)-7- [N- (tert-Butoxycarbonyl)-N- [ (2R)-2- (6-chloro-3- pyridyl)-2-hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2- naphthalenyl trifluoromethanesulfonate MS (m/z): 573 (M+Na) (5) (7S)-7- [N-Benzyl-N- [ (2R)-2-hydroxy-2- (6-methyl-3- pyridyl) ethyl] amino]-5, 6,7, 8-tetrahydro-2-naphthalenyl trifluoromethanesulfonate MS (m/z): 521 (M+1) Preparation 25 To a solution of AD-mix-beta (10.1 g) (cf. J. Org. Chem. vol. 57, No. 10,1992, 2768-2771) in tert-butanol (60 ml) and water (60 ml) was added 1-chloro-4-vinylbenzene (1.0 g) on ice-cooling and the mixture was stirred at the same temperature for 4 hours. To the mixture was added sodium sulfite (19 g). The resulting mixture was poured into saturated aqueous sodium bicarbonate solution, and extracted with ethyl acetate. The organic layer was washed with brine, dried over magnesium sulfate, and evaporated in vacuo to give (lR)-1-(4-chlorophenyl)-1, 2-ethanediol (1.04 g) as a colorless oil.

NMR (CHC13, 8) : 3.50-3. 80 (2H, m), 4.70-4. 85 (1H, m), 7.20-7. 40 (4H, m) Preparation 26 The following compound was obtained according to a similar manner to that of Preparation 25.

(lR)-1-(4-Methylphenyl)-1, 2-ethanediol NMR (CDC13, 8) : 3.50-3. 80 (2H, m), 4.70-4. 80 (1H, m), 7.10-7. 30 (4H, m) Preparation 27 Trimethylsilyl chloride (0.956 ml) was added to a solution of (lR)-1-(4-chlorophenyl)-1, 2-ethanediol (1.0 g) and trimethyl orthoacetate (0.87 ml) in dichloromethane (30 ml) on ice-cooling. The solution was stirred for 1 hour and evaporated. The crude product was dissolved in dry methanol and potassium carbonate (1.97 g) was added. The suspension was stirred vigorously for 100 minutes, then filtered and the residue was washed with dichloromethane. The filtrate was washed with brine, dried over magnesium sulfate, and evaporated in vacuo to give (2R)-2- (4-chlorophenyl) oxirane (700 mg) as a colorless oil.

NMR (CHC13, 8) : 2.75 (1H, dd, J=2.5, 5.5Hz), 3.14 (1H, dd, J=4.0, 5.5Hz), 3.80-3. 86 (1H, m), 7.18-7. 40 (4H, m) Preparation 28 The following compound was obtained according to a similar manner to that of Preparation 27.

(2R)-2- (4-Methylphenyl) oxirane NMR (CDC13, 8) : 2.34 (3H, s), 2.80 (1H, dd, J=2.5, 5.5Hz), 3.13 (1H, dd, J=4,5. 5Hz), 3.82 (1H, dd, J=2.5, 4Hz), 7.10-7. 30 (4H, m)

Preparation 29 Under nitrogen at room temperature, to a solution of (7S)-7-amino-5, 6,7, 8-tetrahydro-2-naphthalenol (3.0 g) in dichloromethane (30 ml) was added benzaldehyde (1.95 g), and the mixture was stirred at the same temperature for 20 minutes. To the mixture was added toluent and evaporated under reduced pressure. Under nitrogen, to a solution of the residue in tetrahydrofuran (20 ml) was added sodium borohydride (1.04 g) followed by methanol (10 ml) dropwise at 5°C and the mixture was stirred at room temperature for 40 minutes. The resulting mixture was poured into a mixture of ethyl acetate and water, and stirred for 10 minutes.

After separation, the organic layer was washed with brine, dried over anhydrous magnesium sulfate and evaporated under reduced pressure. The residue was purified by column chromatography on silica gel (chloroform: methanol = 100: 1 to 20: 1) to give (7S)-7- (benzylamino)-5, 6,7, 8-tetrahydro-2- naphthalenol (4.0 g).

MS (m/z): 254 (M+1) Preparation 30 Under nitrogen, to a solution of (7S)-7- [N-benzyl-N- [(2R)-2-(6-chloro-3-pyridyl)-2-hydroxyethyl] amino] -5,6, 7,8- tetrahydro-2-naphthalenol (1.3 g) in tetrahydrofuran (10 ml) was added 1M methylzinc chloride in tetrahydrofuran (19 ml) and tetrakis (triphenylphosphine) palladium (147 mg) at room temperature. The mixture was stirred at 80°C for 24 hours, and then poured into an aqueous solution (60 ml) of ethylenediaminetetraacetic acid (11 g). The resulting mixture was nutralized with saturated aqueous sodium bicarbonate and extracted with ethyl acetate. The organic layer was washed with brine, dried over anhydrous magnesium sulfate and evaporated under reduced pressure. The residue was purified by column chromatography on silica gel

(chloroform: methanol = 100: 1) to give (7S)-7- [N-benzyl-N- [(2R)-2-hydroxy-2-(6-methyl-3-pyridyl) ethyl] amino]-5, 6,7, 8- tetrahydro-2-naphthalenol (1.26 g).

MS (m/z): 389 (M+1) Preparation 31 The following compound was obtained according to a similar manner to that of Preparation 30. tert-Butyl N- [ (2R)-2-hydroxy-2- (6-methyl-3- pyridyl) ethyl]-N-[(2S)-7-hydroxy-1, 2,3, 4-tetrahydro-2- naphthalenyl] carbamate MS (m/z): 399 (M+1) Preparation 32 To a mixture of 1- (5, 6-dichloro-3-pyridyl) ethanone (8.5 g), 1M hydrogen chloride in acetic acid (50 ml) and acetic acid (50 ml) was added N-chlorosuccinimide (7.66 g) on ice- cooling, and the mixture was stirred at room temperature for 18 hours. The resulting mixture was evaporated and poured into a mixture of water and ethyl acetate, and then stirred for 10 minutes. After separation, the organic layer was washed with brine, dried over anhydrous magnesium sulfate and evaporated under reduced pressure. The residue was purified by column chromatography on silica gel (hexane: ethyl acetate = 5: 1) to give 2-chloro-l- (5, 6- dichloro-3-pyridyl) ethanone (6.3 g).

NMR (DMSO-d6, 8) : 4. 60 (2H, s), 8. 30 (1H, d, J=2Hz), 8.80 (1H, d, J=2Hz) Preparation 33 To a solution of 2-chloro-l- (5, 6-dichloro-3- pyridyl) ethanone (6.33 g) in tetrahydrofuran (30 ml) was added 1M (-) -B-chlorodiisopinocampheylborane in tetrahydrofuran (120 ml) on ice-cooling, and the mixture was

stirred at the same temperature for 18 hours. The resulting mixture was poured into a mixture of water and ethyl acetate on ice-cooling and stirred for 10 minutes. After separation, the organic layer was washed with brine, dried over anhydrous magnesium sulfate and evaporated under reduced pressure. The residue was purified by column chromatography on silica gel (hexane: ethyl acetate = 5: 1) to give (1R)-2- chloro-1- (5, 6-dichloro-3-pyridyl) ethanol (7.47 g).

NMR (CDC13, 8) : 2.80 (1H, d, J=3Hz), 3.50-3. 81 (2H, m), 4.90-5. 00 (1H, m), 7.88 (1H, d, J=2Hz), 8.30 (1H, d, J=2Hz) Preparation 34 A solution of (lR)-2-chloro-l- (5, 6-dichloro-3- pyridyl) ethanol (7.47 g) in 1N sodium hydroxide (75 ml), water (75 ml) and diethyl ether (75 ml) was stirred at room temperature for 1 hour. The resulting mixture was poured into saturated aqueous sodium bicarbonate solution, and extracted with ethyl acetate. The organic layer was washed with brine, dried over magnesium sulfate, and evaporated in vacuo to give 2, 3-dichloro-5-[(2R)-2-oxiranyl] pyridine (5.88 g) as a colorless oil.

NMR (CDC13, 8) : 2. 80 (1H, dd, J=2,5Hz), 3.22 (1H, dd, J=4,5Hz), 3. 80-3. 90 (1H, m), 7.62 (1H, d, J=2Hz), 8.27 (1H, d, J=2Hz) Preparation 35 To a solution of (7S)-7-[[(benzyloxy) carbonyl] amino]- 5, 6,7, 8-tetrahydro-2-naphthalenyl trifluoromethanesulfonate (1.95 g) in toluene (20 ml) were added ethyl 4- piperidinecarboxylate (857 mg), palladium acetate (102 mg) and sodium tert-butoxide (611 mg), and the mixture was stirred at 70°C for 2 hours under nitrogen. The mixture was diluted with ethyl acetate and water. The organic layer was separated, washed with brine, dried over magnesium sulfate

and evaporated. The residue was purified by column chromatography on silica gel (hexane/ethyl acetate = 2/1) to give ethyl 1- [ (7S)-7- [ [ (benzyloxy) carbonyl] amino] -5, 6,7, 8- tetrahydro-2-naphthalenyl]-4-piperidinecarboxylate (950 mg) as a colorless powder.

MS (m/z): 437 (M+1) Preparation 36 To a solution 2,5-dichloroisonicotinic acid (3.0 g) and potassium carbonate (2.16 g) in N, N-dimethylformamide (30 ml) was added iodoethane (1.26 ml), and the mixture was stirred at room temperature for 16 hours. The mixture was partitioned between ethyl acetate and water. The organic layer was separated, washed with water and brine, dried over magnesium sulfate and evaporated under reduced pressure to give ethyl 2,5-dichloroisonicotinate (2.76 g).

(+) ESI-MS (m/z): 242,244 (M+Na) + Preparation 37 To a solution of ethyl 3-methoxy-4- [ [ (trifluoromethyl)- sulfonyl] oxy] benzoate (1.52 g) in 1,4-dioxane (35 ml) were added bis (pinacolato) diboron (1.18 g), [1, 1'- bis (diphenylphosphino) ferrocene] palladium (II) chloride- dichloromethane complex (309 mg) and potassium acetate (1.36 g), and the mixture was stirred at 100°C for 10 hours under nitrogen. The mixture was diluted with ethyl acetate and water. The organic layer was separated, washed with brine, dried over magnesium sulfate and evaporated. The residue was purified by column chromatography on silica gel (hexane/ethyl acetate = 5/1) to give ethyl 3-methoxy-4- (4,4, 5, 5-tetramethyl-1, 3,2-dioxaborolan-2-yl) benzoate (700 mg).

(+) ESI-MS (m/z): 293 (M+1) + Preparation 38

The following compounds were obtained according to a similar manner to that of Preparation 37.

(1) Methyl 3-chloro-4- (4, 4,5, 5-tetramethyl-1, 3,2- dioxaborolan-2-yl) benzoate (+) ESI-MS (m/z): 297 (M+1) + (2) Methyl 3-fluro-4- (4, 4,5, 5-tetramethyl-1, 3,2- dioxaborolan-2-yl) benzoate NMR (CDC13, 8) : 1.37 (12H, s), 3.93 (3H, s), 7.61-7. 87 (3H, m) Preparation 39 To a suspension of methyl 3-chloro-4- (4, 4,5, 5- tetramethyl-1, 3,2-dioxaborolan-2-yl) benzoate (2.2 g) in acetone (80 ml) and water (80 ml) were added ammonium acetate (1.2 g) and sodium periodate (3.33 g), and the mixture was stirred at room temperature for 15 hours. The mixture was evaporated and the residue was diluted with ethyl acetate. The organic layer was separated, washed with water and brine, dried over magnesium sulfate and evaporated under reduced pressure. The resultant solid was triturated with diisopropyl ether to give 2-chloro-4- (methoxycarbonyl)- phenylboronic acid (275 mg).

(+) ESI-MS (m/z): 213 (M-1)- Preparation 40 To a solution of methyl 4-bromo-2-methylbenzoate (6.9 g) in 1,4-dioxane (150 ml) were added bis (pinacolato) diboron (8.03 g), dichlorobis (triphenylphosphine) palladium (II) (1.69 g) and potassium acetate (8.87 g), and the mixture was stirred at 95°C for 2 hours under nitrogen. The mixture was diluted with ethyl acetate and water. The organic layer was separated, washed with IN hydrochloric acid and brine, dried over magnesium sulfate and evaporated. To a suspension of

the crude product (11 g) in acetone (200 ml) and water (200 ml) were added ammonium acetate (5.1 g) and sodium periodate (14.1 g), and the mixture was stirred at room temperature for 6 hours. The solvent was evaporated, and the mixture was diluted with ethyl acetate. The organic layer was separated, washed with water and brine, dried over magnesium sulfate and evaporated under reduced pressure. The resultant solid was triturated with diisopropyl ether to give 3-methyl-4- (methoxycarbonyl) phenylboronic acid (2.65 g).

(+) ESI-MS (m/z): 193 (M-1)- Preparation 41 The following compound was obtained according to a similar manner to that of Preparation 40.

3-Chloro-4- (methoxycarbonyl) phenylboronic acid NMR (DMSO-d6, 5) : 3.86 (3H, s), 7.76 (1H, d, J=3.8Hz), 7.80 (1H, d, J=3. 8Hz), 8.46 (2H, s) (-) ESI-MS (m/z): 213 (M-1)- Preparation 42 To an ice-cooled solution of methyl 3-fluoro-4- hydroxybenzoate (10.14 g) and 2,6-lutidine (8.28 g) in dichloromethane (81 ml) was added dropwise trifluoromethanesulfonic anhydride (18.4 g) for 5 minutes, and the mixture was stirred at the same temperature for 30 minutes. The mixture was partitioned between chloroform and water. The organic layer was separated, washed successively with water and brine, dried over magnesium sulfate, and filtered. The filtrate was concentrated and the residue was purified by column chromatography (silica gel, hexane/ethyl acetate) to give methyl 3-fluoro-4- [ [ (trifluoromethyl)- sulfonyl] oxy] benzoate (16.95 g) as a colorless oil.

NMR (CDC13, 8) : 3.95 (3H, s), 7.43 (1H, dd, Jp-H=8, JH-H=8Hz), 7. 83-8. 03 (2H, m)

Preparation 43 The following compounds were obtained according to a similar manner to that of Preparation 12.

(1) 2-Fluoro-4- (methoxycarbonyl) phenylboronic acid NMR (DMSO-d6, 8) : 3.87 (3H, s), 7.50-7. 82 (3H, m), 8. 47 (2H, br s) (2) (7S)-7- [ [ (Benzyloxy) carbonyl] amino] -5, 6,7, 8-tetrahydro- 2-naphthalenylboronic acid (-) ESI-MS (m/z) : 324 (M-1)- (3) 3-Fluoro-4- (methoxycarbonyl) phenylboronic acid (+) ESI-MS (m/z): 197 (M-1)- (4) 4- (Ethoxycarbonyl)-2-methoxyphenylboronic acid (+) ESI-MS (m/z): 223 (M-1)- Preparation 44 To a solution of benzyl (2S)-7-hydroxy-1, 2,3, 4- tetrahydro-2-naphthalenylcarbamate (3.2 g) in dichloromethane (48 ml) were added 4-[(tert-butoxycarbonyl)- amino)-3- (methoxycarbonyl) phenylboronic acid (3.49 g), copper (II) acetate (2.93 g), pyridine (4.35 ml) and dried molecular sieves 4A (3.2 g). The reaction mixture was stirred at room temperature for 16 hours. The precipitate was filtered through a pad of Celiez and the filtrate was concentrated under reduced pressure. The residue was purified by column chromatography on silica gel with ethyl acetate and hexane (1: 3 to 1: 2) to give methyl 5- [ [ (7S)-7- [ [ (benzyloxy) carbonyl] amino] -5, 6,7, 8-tetrahydro-2- naphthalenyl] oxy]-2-[(tert-butoxycarbonyl) amino] benzoate (3.5 g) as a yellow solid.

(+) ESI-MS (m/z): 569 (M+Na) +

Preparation 45 To a solution of methyl 5- [ [ (7S)-7- [ [ (benzyloxy)- carbonyl] amino-5, 6,7, 8-tetrahydro-2-naphthalenyl] oxy]-2- [ (tert-butoxycarbonyl) amino] benzoate (250 mg) in dioxane (1 ml) was added 4N hydrogen chloride in 1,4-dioxane (2.5 ml) and the solution was stirred at room temperature for 3 hours.

The mixture was concentrated under reduced pressure. To the residue were added ethyl acetate and aqueous sodium bicarbonate and the mixture was stirred at room temperature for 20 minutes. The organic layer was separated and the aqueous layer was extracted with ethyl acetate. The combined organic layer was dried over magnesium sulfate, filtrated and concentrated under reduced pressure to give methyl 2-amino-5- [ [ (7S)-7- [ [ (benzyloxy) carbonyl] amino]- 5, 6, 7, 8-tetrahydro-2-naphthalenyl] oxy] benzoate (194 mg) as a yellow oil.

(+) ESI-MS (m/z): 469 (M+Na) + Preparation 46 A tetrahydrofuran solution (1.5 ml) of 2,5- dimethoxytetrahydrofuran (0.29 ml) and 2.5M sulfuric acid (1.12 ml) was added dropwise to a solution of methyl 2- amino-5- [ [ (7S)-7- [ [ (benzyloxy) carbonyl] amino]-5, 6,7, 8- tetrahydro-2-naphthalenyl] oxy] benzoate (500 mg) in a mixture of methanol (2.2 ml) and tetrahydrofuran (2.2 ml) and then sodium borohydride (169 mg) was added portionwise under ice bath. The mixture was stirred at room temperature for 18 hours. The mixture was diluted with water and alkalinized with 3N sodium hydroxide solution. The mixture was extracted with ether and washed with brine. The extract was dried over magnesium sulfate, filtrated and concentrated under reduced pressure. The residue was purified by column chromatography on silica gel with ethyl acetate and hexane (1: 4 to 1: 3) to give methyl 5- [ [ (7S)-7- [ [ (benzyloxy)-

carbonyl] amino] -5, 6,7, 8-tetrahydro-2-naphthalenyl] oxy]-2- (1- pyrrolidinyl) benzoate (443 mg) as a colorless oil.

(+) ESI-MS (m/z): 501 (M+1) + Example 27 The following compounds were obtained according to a similar manner to that of Preparation 4.

(1) Methyl 4-[(7S)-7-[N-(tert-butoxycarbonyl)-N-[(2R)-2-(3- chlorophenyl)-2-hydroxyethyl] amino]-5, 6,7, 8-tetrahydro- 2-naphthalenyl]-3-methylbenzoate (+) ESI-MS (m/z) : 572 (M+Na) + (2) tert-Butyl N- [ (2R)-2- (3-chlorophenyl)-2-hydroxyethyl]- N- [ (2S)-7- (5-formyl-2-thienyl)-1, 2,3, 4-tetrahydro-2-. naphthalenyl] carbamate (+) ESI-MS (m/z): 512 (M+1) + (3) Methyl 4-[(7S)-7-[N-(tert-butoxycarbonyl)-N-[(2R)-2-(3- chlorophenyl)-2-hydroxyethyl] amino]-5, 6,7, 8-tetrahydro- 2-naphthalenyl]-2-methoxybenzoate (+) ESI-MS (m/z) : 566 (M+1) + (4) Methyl 4- [ (7S)-7- [N- (tert-butoxycarbonyl)-N- [ (2R)-2- (3- chlorophenyl)-2-hydroxyethyl] amino]-5, 6,7, 8-tetrahydro- 2-naphthalenyl]-2-fluorobenzoate (+) ESI-MS (m/z): 553 (M+1) + (5) Ethyl 4- [ (7S)-7- [N- (tert-butoxycarbonyl)-N- [ (2R)-2- (3- chlorophenyl)-2-hydroxyethyl] amino]-5, 6,7, 8-tetrahydro- 2-naphthalenyl]-3-methoxybenzoate (+) ESI-MS (m/z): 580 (M+1) + (6) Ethyl 3- [ (7S)-7- [N- (tert-butoxycarbonyl)-N- [ (2R)-2- (4- chlorophenyl)-2-hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-

2-naphthalenyl] benzoate MS (m/z): 572 (M+Na) (7) Methyl 4- [ (7S)-7- [N- (tert-butoxycarbonyl)-N- [ (2R)-2- (4- chlorophenyl)-2-hydroxyethyl] amino]-5, 6,7, 8-tetrahydro- 2-naphthalenyl]-3-methylbenzoate MS (m/z): 550 (M+1) (8) tert-Butyl N- [ (2R)-2- (4-chlorophenyl)-2-hydroxyethyl]- N- [ (2S)-7- (4-fluoro-3-formylphenyl)-1, 2,3, 4-tetrahydro- 2-naphthalenyl] carbamate MS (m/z): 524 (M+l) (9) Methyl 4- [ (7S)-7- [N-benzyl-N- [ (2R)-2-hydroxy-2- (6- methyl-3-pyridyl) ethyl] amino]-5, 6,7, 8-tetrahydro-2- naphthalenyl] benzoate MS (m/z): 507 (M+1) (10) Methyl 4- [ (7S)-7- [N- (tert-but. oxycarbonyl)-N- [ (2R)-2- (5, 6-dichloro-3-pyridyl)-2-hydroxyethyl] amino]-5, 6,7, 8- tetrahydro-2-naphthalenyl] benzoate MS (m/z): 571 (M+1) (11) Methyl 4- [ (7S)-7- [N- (tert-butoxycarbonyl)-N- [ (2R)-2- (4- chlorophenyl)-2-hydroxyethyl] amino]-5, 6,7, 8-tetrahydro- 2-naphthalenyl]-2-fluorobenzoate MS (m/z): 554 (M+1) (12) Methyl 4- [ (7S)-7- [N- (tert-butoxycarbonyl)-N- [ (2R)-2- (4- chlorophenyl)-2-hydroxyethyl] amino]-5, 6,7, 8-tetrahydro- 2-naphthalenyl]-3-fluorobenzoate MS (m/z): 554 (M+1) (13) Methyl 4- [ (7S)-7- [N- (tert-butoxycarbonyl)-N- [ (2R)-2- (4- chlorophenyl) -2-hydroxyethyl] amino-5, 6,7, 8-tetrahydro-

2-naphthalenyl]-2-chlorobenzoate MS (m/z): 570 (M+1) (14) Methyl 4-[(7S)-7-[N-(tert-butoxycarbonyl)-N-[(2R)-2-(4- chlorophenyl)-2-hydroxyethyl] amino]-5, 6,7, 8-tetrahydro- 2-naphthalenyl]-3-chlorobenzoate MS (m/z): 570 (M+1) (15) Methyl 4- [ (7S)-7- [N- (tert-butoxycarbonyl)-N- [ (2R)-2- (4- chlorophenyl)-2-hydroxyethyl] amino]-5, 6,7, 8-tetrahydro- 2-naphthalenyl]-2-methylbenzoate MS (m/z): 550 (M+1) (16) Methyl 4- [ (7S)-7- [N- (tert-butoxycarbonyl)-N- [ (2R)-2- hydroxy-2- (4-methylphenyl) ethyl] amino]-5, 6,7, 8- tetrahydro-2-naphthalenyl] benzoate MS (m/z): 516 (M+1) (17) tert-Butyl N- [ (2R)-2- (4-chlorophenyl)-2-hydroxyethyl]- N- [ (2S)-'7- (3-formyl-4-methoxyphenyl)-1, 2,3, 4-trahydro- 2-naphthalenyl] carbamate MS (m/z): 536 (M+1) (18) tert-Butyl N- [ (2R)-2- (4-chlorophenyl)-2-hydroxyethyl]- N-[(2S)-7-(4-formylphenyl)-1, 2, 3,4-trahydro-2- naphthalenyl] carbamate MS (m/z): 506 (M+1) Example 28 The following compound was obtained according to a similar manner to that of Example 25..

Ethyl 3-[[(7S)-7-[N-(tert-butoxycarbonyl)-N-[(2R)-2- hydroxy-2- (3-pyridyl) ethyl] amino] -5, 6,7, 8-tetrahydro-2- naphthalenyl] oxy] benzoate

MS (m/z): 533 (M+1) Example 29 The following compounds were obtained according to a similar manner. to that of Preparation 17.

(1) Ethyl 3-[[(7S)-7-[[(tert-2-hydroxy-2-(6-methyl-3- pyridyl) ethyl] amino]-5, 6,7, 8-tetrahydro-2- naphthalenyl] oxy] benzoate MS (m/z): 447 (M+1) (2) Methyl 4-[(7S)-7-[[(tert-2-hydroxy-2-(6-methyl-3- pyridyl) ethyl] amino] -5, 6,7, 8-tetrahydro-2- naphthalenyl] benzoate MS (m/z): 417 (M+1) Example 30 The following compound was obtained according to a similar manner to that of Example 17.

Ethyl 6-[(7S)-7-[[(tert-2-(3-chlorophenyl)-2- <BR> <BR> <BR> <BR> hydroxyethyl] amino]-5, 6, 7, 8-tetrahydro-2-naphthalenyl]- nicotinate (+) ESI-MS (m/z): 451 (M+1) + Example 31 The following compounds were obtained according to a similar manner to that of Preparation 19.

(1) Methyl 4- [ (7S)-7- [ [ (2R)-2- (6-chloro-3-pyridyl)-2- hydroxyethyl] amino-5, 6,7, 8-tetrahydro-2- naphthalenyl] benzoate MS (m/z): 437 (M+1) (2) Ethyl 4- [ (7S)-7- [ [ (2R)-2- (4-chlorophenyl)-2-

hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2-naphthalenyl] - 3-methoxybenzoate MS (m/z): 480 (M+1) (3) Ethyl 1- [ (7S)-7- [ [ (2R)-2- (4-chlorophenyl)-2- hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2-naphthalenyl]- 4-piperidinecarboxylate MS (m/z): 456 (M+1) Example 32 The following compound was obtained according to a similar manner to that of Preparation 21.

Ethyl 6- [ (7S)-7- [N- (tert-butoxycarbonyl)-N- [ (2R)-2- (3- chlorophenyl)-2-hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2- naphthalenyl] nicotinate (+) ESI-MS (m/z): 573 (M+Na) + Example 33 To a solution of tert-butyl N- [ (2R)-2- (3-chlorophenyl)- 2-hydroxyethyl]-N-[(2S)-7-hydroxy-1, 2,3, 4-tetrahydro-2- naphthalenyl] carbamate in dichloromethane (300 mg) were added 3-formyl-4-methoxyphenylboronic acid (194 mg), copper (II) acetate (143 mg), pyridine (0.5 ml) and molecular sieves 4A (600 mg). The reaction mixture was stirred at room temperature for 16 hours. The precipitate was filtered through a pad of Celite and the filtrate was concentrated under reduced pressure. The residue was purified by column chromatography on silica gel with ethyl acetate and hexane (1: 3 to 1: 2) to give tert-butyl N- [ (2R)-2- (3-chlorophenyl)- 2-hydroxyethyl]-N- [ (2S)-7- (3-formyl-4-methoxyphenoxy)- 1, 2,3, 4-tetrahydro-2-naphthalenyl] carbamate (80 mg) as a white solid.

(+) ESI-MS (m/z): 574 (M+Na) +

Example 34 The following compounds were obtained according to a similar manner to that of Example 33.

(1) tert-Butyl N- [ (2R)-2- (3-chlorophenyl)-2-hydroxyethyl]- N- [ (2S)-7- (4-fluoro-3-formylphenoxy)-1, 2,3, 4- tetrahydro-2-naphthalenyl] carbamade (+) ESI-MS (m/z): 562 (M+Na) + (2) Methyl 5-[[(7S)-7-[N-(tert-butoxycarbonyl)-N-[(2R)-2- (3-chlorophenyl) -2-hydroxyethyl] amino] -5, 6,7, 8- tetrahydro-2-naphthalenyl] oxy]-2-[[tert-butyl- (dimethyl) silyl] oxy] benzoate (+) ESI-MS (m/z): 704 (M+Na) + (3) Methyl 3- [ [ (7S)-7- [N- (tert-butoxycarbonyl)-N- [ (2R)-2- (3-chlorophenyl) -2-hydroxyethyl] amino] -5, 6,7, 8- tetrahydro-2-naphthalenyl] oxy]-5-methoxybenzoate (+) ESI-MS (m/z) : 604 (M+Na) + (4) Methyl 3- [ [ (7S)-7- [N- (tert-butoxycarbonyl)-N- [ (2R)-2- (3-chlorophenyl) -2-hydroxyethyl] amino] -5, 6,7, 8- tetrahydro-2-naphthalenyl] oxy]-5-nitrobenzoate (+) ESI-MS (m/z): 619 (M+Na) + (5) tert-Butyl N- [ (2R)-2- (3-chlorophenyl)-2-hydroxyethyl]- N- [ (2S)-7- (5-formyl-2-methoxyphenoxy)-1, 2,3, 4- tetrahydro-2-naphthalenyl] carbamade (+) ESI-MS (m/z): 576 (M+Na) + (6) Methyl 5- [ [ (7S)-7- [N- (tert-butoxycarbonyl)-N- [ (2R)-2- (3-chlorophenyl)-2-hydroxyethyl] amino]-5, 6,7, 8- tetrahydro-2-naphthalenyl] oxy]-2-cyanobenzoate (+) ESI-MS (m/z): 599 (M+Na) +

(7) Methyl 5- [ [ (7S)-7- [N- (tert-butoxycarbonyl)-N- [ (2R)-2- (3-chlorophenyl)-2-hydroxyethyl] amino]-5, 6,7, 8- tetrahydro-2-naphthalenyl] oxy]-2-methylbenzoate (+) ESI-MS (m/z): 588 (M+Na) + (8) Methyl 2-[(tert-butoxycarbonyl)amino]-5-[[(7S)-7-[N- (tert-butoxycarbonyl)-N- [ (2R)-2- (3-chlorophenyl)-2- hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2-naphthalenyl]- oxy] benzoate (+) ESI-MS (m/z): 689 (M+Na) + (9) Methyl 3-[[(7S)-7-[N-(tert-butoxycarbonyl)-N-[(2R)-2- (3-chlorophenyl)-2-hydroxyethyl] amino] -5,6, 7,8- tetrahydro-2-naphthalenyl] oxy]-5-[[tert- butyl (dimethyl) silyl] oxy] benzoate (+) ESI-MS (m/z): 704 (M+Na) + (10) Methyl 5-[[(7S)-7-[N-(tert-butoxycarbonyl)-N-[(2R)-2- <BR> <BR> <BR> (3-chlorophenyl) -2-hydroxyethyl] amino-5, 6, 7,8-<BR> <BR> <BR> <BR> <BR> tetrahydro-2-naphthalenyl] oxy]-2-[N-(tert- butoxycarbonyl) -N-methylamino] benzoate (+) ESI-MS (m/z): 703 (M+Na) + (11) Methyl 2- (acetylamino)-5- [ [ (7S)-7- [N- (tert- butoxycarbonyl)-N- [ (2R)-2- (3-chlorophenyl)-2- hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2- naphthalenyl] oxy] benzoate (+) ESI-MS (m/z): 631 (M+Na) + (12) Methyl 5- [ [ (7S)-7- [N- (tert-butoxycarbonyl)-N- [ (2R)-2- (3-chlorophenyl)-2-hydroxyethyl] amino]-5, 6,7, 8- tetrahydro-2-naphthalenyl] oxy]-2-[(methylsulfonyl)- amino] benzoate (+) ESI-MS (m/z): 667 (M+Na) +

(13) Methyl 5- [ [ (7S)-7- [N- (tert-butoxycarbonyl)-N- [ (2R)-2- (3-chlorophenyl)-2-hydroxyethyl] amino]-5, 6,7, 8- tetrahydro-2-naphthalenyl] oxy]-2-[(ethoxycarbonyl)- amino] benzoate (+) ESI-MS (m/z): 661 (M+Na) + (14) Methyl 2-[N-acetyl-N-methylamino]-5-[[(7S)-7-[N-(tert- butoxycarbonyl)-N- [ (2R)-2- (3-chlorophenyl)-2- hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2- naphthalenyl] oxy] benzoate (+) ESI-MS (m/z): 645 (M+Na) + (15) Methyl 2- (benzoylamino)-5- [ [ (7S)-7- [N- (tert- butoxycarbonyl)-N- [ (2R)-2- (3-chlorophenyl)-2- hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2-naphthalenyl] - oxy] benzoate (+) ESI-MS (m/z): 693 (M+Na) + (16) Methyl 5- [ [ (7S)-7- [N- (tert-butoxycarbonyl)-N- [ (2R)-2- (3-chlorophenyl)-2-hydroxyethyl] amino]-5, 6,7, 8- tetrahydro-2-naphthalenyl] oxy]-2-[(2, 2- dimethylpropanoyl) amino] benzoate (+) ESI-MS (m/z): 673 (M+Na) + (17) Methyl 5-[[(7S)-7-[N-(tert-butoxycarbonyl)-N-[(2R)-2- (3-chlorophenyl)-2-hydroxyethyl] amino]-5, 6,7, 8- tetrahydro-2-naphthalenyl] oxy]-2-(2-oxo-1- pyrrolidinyl) benzoate (+) ESI-MS (m/z): 657 (M+Na) + (18) Ethyl 3- [ [ (7S)-7- [N-benzyl-N- [ (2R)-2-hydroxy-2- (6- methyl-3-pyridyl) ethyl] amino]-5, 6,7, 8-tetrahydro-2- naphthalenyl] oxy] benzoate MS (m/z): 537 (M+1)

(19) Ethyl 3- [ [ (7S)-7- [N- (tert-butoxycarbonyl)-N- [ (2R)-2- (6- chloro-3-pyridyl) -2-hydroxyethyl] amino] -5, 6,7, 8- tetrahydro-2-naphthalenyl] oxy] benzoate MS (m/z): 567 (M+1) (20) tert-Butyl N-[(2R)-2-(4-chlorophenyl)-2-hydroxyethyl]- N- [ (2S)-7- (3-formyl-4-methoxyphenoxy)-1, 2, 3, 4- tetrahydro-2-naphthalenyl] carbamate MS (m/z) : 574 (M+Na) (21) Ethyl 3- [ [ (7S)-7- [N- (tert-butoxycarbonyl)-N- [ (2R)-2- (4- chlorophenyl)-2-hydroxyethyl] amino]-5, 6,7, 8-tetrahydro- 2-naphthalenyl] oxy] benzoate MS (m/z): 588 (M+Na) (22) Methyl 4- [ [ (7S)-7- [N- (tert-butoxycarbonyl)-N- [ (2R)-2- (4-chlorophenyl) -2-hydroxyethyl] amino] -5, 6,7, 8- tetrahydro-2-naphthalenyl] oxy] benzoate MS (m/z): 574 (M+Na) (23) Methyl 4- [ [ (7S)-7- [N- (tert-butoxycarbonyl)-N- [ (2R)-2- (4-chlorophenyl)-2-hydroxyethyl] amino]-5, 6,7, 8- tetrahydro-2-naphthalenyl] oxy]-2-methoxybenzoate MS (m/z): 582 (M+1) (24) Methyl 5- [ [ (7S)-7- [N- (tert-butoxycarbonyl)-N- [ (2R)-2- (4-chlorophenyl) -2-hydroxyethyl] amino] -5, 6,7, 8- tetrahydro-2-naphthalenyl] oxy]-2-chlorobenzoate MS (m/z): 586 (M+1) (25) Ethyl 3- [ [ (7S)-7- [N- (tert-butoxycarbonyl)-N- [ (2R)-2- (5,6-dichloro-3-pyridyl)-2-hydroxyethyl] amino] -5,6, 7,8- tetrahydro-2-naphthalenyl] oxy] benzoate MS (m/z): 601 (M+1)

(26) tert-Butyl N-[(2R)-2-(6-chloro-3-pyridyl)-2- hydroxyethyl]-N- [ (2S)-7- (3-formyl-4-methoxyphenoxy)- 1, 2,3, 4-tetrahydro-2-naphthalenyl] carbamate MS (m/z): 553 (M+1) (27) Ethyl 3- [ [ (7S)-7- [N- (tert-butoxycarbonyl)-N- [ (2R)-2- hydroxy-2- (4-methylphenyl) ethyl] amino]-5, 6,7, 8- tetrahydro-2-naphthalenyl] oxy] benzoate MS (m/z): 546 (M+1) (28) Methyl 5- [ [ (7S)-7- [N- (tert-butoxycarbonyl)-N- [ (2R)-2- (6-chloro-3-pyridyl)-2-hydroxyethyl] amino]-5, 6,7, 8- tetrahydro-2-naphthalenyl] oxy]-2-chlorobenzoate MS (m/z): 587 (M+1) (29) Methyl 5- [ [ (7S)-7- [N- (tert-butoxycarbonyl)-N- [ (2R)-2- hydroxy-2- (6-methyl-3-pyridyl) ethyl] amino] -5, 6,7, 8- tetrahydro-2-naphthalenyl] oxy]-2-chlorobenzoate MS (m/z): 567 (M+1) (30) tert-Butyl N- [ (2R)-2- (5, 6-dichloro-3-pyridyl)-2- hydroxyethyl]-N- [ (2S)-7- (3-formyl-4-methoxyphenoxy)- 1, 2,3, 4-tetrahydro-2-naphthalenyl] carbamate MS (m/z): 587 (M+1) Example 35 To a solution of tert-butyl N- [ (2R)-2- (3-chlorophenyl)- 2-hydroxyethyl]-N- [ (2S)-7- (3-formyl-4-methoxyphenoxy)- 1, 2,3, 4-tetrahydro-2-naphthalenyl] carbamate (80 mg) in a mixture of acetonitrile (1 ml) and water (0.3 ml) were added 35% solution of hydrogen peroxide in water (28 ßl) and potassium dihydrogenphosphate (78.9 mg). After cooling to 4°C, a solution of sodium chlorite (26.2 mg) in water (0.3 ml) was added dropwise to the solution. The solution was stirred at room temperature for 1 hour. To the solution was

added sodium sulfite (73.1 mg) at 4°C. After adding 1M citric acid aqueous solution, the solution was extracted with ethyl acetate. The organic layer was separated and washed with water and brine. The extract was dried over magnesium sulfate and concentrated under reduced pressure.

The residue was purified by column chromatography on silica gel with chloroform and methanol (100: 0 to 90: 10) to give 5- [ [ (7S)-7- [N- (tert-butoxycarbonyl)-N- [ (2R)-2- (3- chlorophenyl)-2-hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2- naphthalenyl] oxy]-2-methoxybenzoic acid (46.8 mg) as a white solid.

(-) ESI-MS (m/z): 566 (M-1)- Example 36 The following compounds were obtained according to a similar manner to that of Example 35.

(1) 5-[[(7S)-7-[N-(tert-butoxycarbonyl)-N-[(2R)-2-(3- chlorophenyl)-2-hydroxyethyl] amino]-5, 6,7, 8-tetrahydro- 2-naphthalenyl] oxy]-2-fluorobenzoic acid (-) ESI-MS (m/z): 554 (M-1)- (2) 3- [ [ (7S)-7- [N- (tert-Butoxycarbonyl)-N- [ (2R)-2- (3- chlorophenyl)-2-hydroxyethyl] amino]-5, 6,7, 8-tet. rahydro- 2-naphthalenyl] oxy]-4-methoxybenzoic acid (-) ESI-MS (m/z): 566 (M-1) (3) 5- [ [ (7S)-7- [N- (tert-Butoxycarbonyl)-N- [ (2R)-2- (3- chlorophenyl) -2-hydroxyethyl] amino] -5, 6,7, 8-tetrahydro- 2-naphthalenyl] oxy]-2-phenoxybenzoic acid (-) ESI-MS (m/z): 628 (M-1)- (4) 5- [ (7S)-7- [N- (tert-Butoxycarbonyl)-N- [ (2R)-2- (3- chlorophenyl) -2-hydroxyethyl] amino-5, 6,7, 8-tetrahydro- 2-naphthalenyl]-2-thiophenecarboxylic acid

(-) ESI-MS (m/z) : 526 (M-1) (5) 5-[[(7S)-7-[N-(tert-Butoxycarbonyl)-N-[(2R)-2-(4- chlorophenyl) -2-hydroxyethyl] amino] -5, 6,7, 8-tetrahydro- 2-naphthalenyl] oxy]-2-methoxybenzoic acid MS (m/z): 568 (M+1) (6) 5-[(7S)-7-[N-(tert-butoxycarbonyl)-N-[(2R)-2-(4- chlorophenyl)-2-hydroxyethyl] amino]-5, 6,7, 8-tetrahydro- 2-naphthalenyl]-2-fluorobenzoic acid MS (m/z): 540 (M+1) (7) 5-[[(7S)-7-[N-(tert-butoxycarbonyl)-N-[(2R)-2-(6- chloro-3-pyridyl)-2-hydroxyethyl] amino] -5,6, 7,8- tetrahydro-2-naphthalenyl] oxy]-2-methoxybenzoic acid MS (m/z): 569 (M+1) (8) 5- [ [ (7S)-7- [N- (tert-Butoxycarbonyl)-N- [ (2R)-2- (5, 6- dichloro-3-pyridyl)-2-hydroxyethyl] amino]-5, 6,7, 8- tetrahydro-2-naphthalenyl] oxy]-2-methoxybenzoic acid MS (m/z): 603 (M+1) (9) 5- [ (7S)-7- [N- (tert-Butoxycarbonyl)-N- [ (2R)-2- (4- chlorophenyl)-2-hydroxyethyl] amino]-5, 6,7, 8-tetrahydro- 2-naphthalenyl] -2-methoxybenzoic acid MS (m/z): 552 (M+1) Example 37 To a solution of 5- [ [ (7S)-7- [N- (tert-butoxycarbonyl)-N- [ (2R)-2- (3-chlorophenyl)-2-hydroxyethyl] amino]-5, 6,7, 8- tetrahydro-2-naphthalenyl] oxy]-2-methoxybenzoic acid (46.8 mg) in 1,4-dioxane (0.2 ml) was added 4N hydrogen chloride in 1,4-dioxane (1 ml) dropwise. The solution was stirred at room temperature for 3 hours. The solution was concentrated under reduced pressure to give 5- [ [ (7S)-7- [ [ (2R)-2- (3-

chlorophenyl)-2-hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2- naphthalenyl] oxy]-2-methoxybenzoic acid hydrochloride (41.0 mg) as a white solid.

NMR (DMSO-d6, 6) : 1.79-1. 91 (1H, m), 2.28-2. 33 (1H, m), 2.77-2. 91 (2H, m), 3.16-3. 61 (5H, m), 3.80 (3H, s), 5.04-5. 08 (1H, m), 6.34-6. 36 (1H, m), 6.69-7. 50 (10H, m), 8.94 (1H, br s), 9.40 (1H, br s), 12.72 (1H, br s) (+) ESI-MS (m/z): 482 (M-HCl+Na) + Example 38 The following compounds were obtained according to a similar manner to that of Example 37.

(1) 2-Chloro-5- [ [ (7S)-7- [ [ (2R)-2- (3-chlorophenyl)-2- hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2- naphthalenyl] oxy] benzoic acid hydrochloride NMR (DMSO-d6, 8) : 1.12-1. 28 (1H, m), 1.83-1. 91 (2H, m), 2.32-2. 57 (1H, m), 2.83-3. 13 (2H, m), 3.24-3. 56 (2H, m), 3.64-3. 73 (1H, m), 5.09-5. 13 (1H, m), 6.38 (1H, m), 6.84-7. 71 (10H, m), 9.03 (1H, br s), 9.61 (1H, br s), 13.38 (1H, br s) (-) ESI-MS (m/z): 470 (M-HC1-1)- (2) 5-[[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2-hydroxyethyl]- amino] -5,6, 7, 8-tetrahydro-2-naphthalenyl] oxy]-2- fluorobenzoic acid hydrochloride NMR (DMSO-d6, 8) : 1.14-1. 35 (1H, m), 1.83-1. 86 (2H, m), 2.28-2. 52 (1H, m), 2.92-3. 10 (2H, m), 3.22-3. 68 (3H, m), 5.03-5. 08 (1H, m), 6.35-6. 37 (1H, m), 6.78-6. 89 (2H, m), 7.14-7. 50 (8H, m), 8.92 (1H, br s), 9.34 (1H, br s), 13.41 (1H, br s) (-) ESI-MS (m/z): 454 (M-HC1-1)- (3) 3-[[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2-hydroxyethyl]-

amino-5, 6,7, 8-tetrahydro-2-naphthalenyl] oxy]-4- methoxybenzoic acid hydrochloride NMR (DMSO-d6, 8) : 1.23-1. 28 (1H, m), 1.78-1. 84 (2H, m), 2.24-2. 29 (1H, m), 2.74-2. 83 (2H, m), 3.11-3. 64 (3H, m), 3.83 (3H, s), 4.98-5. 03 (1H, m), 6.33 (1H, m), 6.63-6. 76 (2H, m), 7.07-7. 50 (7H, m), 7.77 (1H, dd, J=2,8Hz), 8.89=9. 09 (2H, br), 12.74 (1H, br s) (-) ESI-MS (m/z): 466 (M-HCl-1)- (4) 5-[[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2-hydroxyethyl]- amino] -5,6, 7, 8-tetrahydro-2-naphthalenyl] oxy]-2- phenoxybenzoic acid hydrochloride NMR (DMSO-d6, 8) : 1.52-1. 56 (1H, m), 1.72-1. 86 (2H, m), 2. 29-2. 35 (1H, m), 2.78-2. 95 (2H, m), 3.11-3. 68 (3H, m), 5.03-5. 08 (1H, m), 6.34-6. 36 (1H, m), 6.82-7. 50 (15H, m), 8.94 (1H, br s), 9.29 (1H, br s), 12.90 (1H, br s) (+) ESI-MS (m/z): 530 (M-HCl+1) + (5) 5-[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2-hydroxyethyl]- amino]-5, 6,7, 8-tetrahydro-2-naphthalenyl]-2- thiophenecarboxylic acid hydrochloride NMR (DMSO-d6, 8) : 1.74-1. 77 (1H, m), 1.80-1. 95 (1H, m), 2.30-2. 33 (1H, m), 2.80-2. 95 (3H, m), 3.13-3. 16 (1H, m), 3. 29-3. 36 (1H, m), 3.52-3. 62 (2H, m), 5.04 (1H, d, J=9.2Hz), 6.36 (1H, br), 7.20 (1H, d, J=8. 0Hz), 7.39-7. 53 (7H, m), 7.71 (1H, d, J=4. 0Hz), 9.01 (1H, br), 13.1 (1H, br) (-) ESI-MS (m/z): 426 (M-HCl-1) (6) 3- [ [ (7S)-7- [ [ (2R)-2-Hydroxy-2- (3-pyridyl) ethyl] amino]- 5,6, 7, 8-tetrahydro-2-naphthalenyl] oxy] benzoic acid dihydrochloride NMR (DMSO-d6, 8) : 1.90-2. 05 (1H, m), 2. 30-2. 40 (1H, m),

2.70-3. 10 (3H, m), 3.20-3. 60 (4H, m), 5.30-5. 45 (1H, m), 6.80-6. 95 (2H, m), 7.10-7. 70 (6H, m), 8. 00 (1H, dd, J=5, 8Hz), 8.60 (1H, d, J=8Hz), 8.85 (1H, d, J=5Hz) MS (m/z): 405 (M+1) (7) 3- [ [ (7S)-7- [ [ (2R)-2- (6-Chloro-3-pyridyl)-2- hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2- naphthalenyl] oxy] benzoic acid hydrochloride NMR (DMSO-d6, 8) : 1.80-1. 90 (1H, m), 2.30-2. 40 (1H, m), 2.50-3. 50 (7H, m), 5.10-5. 20 (1H, m), 6.80-7. 00 (2H, m), 7.15-7. 70 (6H, m), . 7.90-8. 00 (1H, m), 8. 48 (1H, s) MS (m/z): 439 (M+1) 3-[[(7S)-7-[[(2R)-2-(4-Chlorophenyl)-2-hydroxyethyl]- amino-5, 6,7, 8-tetrahydro-2-naphthalenyl] oxy] benzoic acid hydrochloride NMR (DMSO-d6, 8) : 1.85-2. 05 (1H, m), 2.30-2. 50 (1H, m), 2.70-3. 60 (7H, m), 5.10-5. 20 (1H, m), 6. 80-6. 90 (2H, m), 7.20-7. 80 (9H, m) MS (m/z): 438 (M+1) (9) 5-[[(7S)-7-[[(2R)-2-(4-Chlorophenyl)-2-hydroxyethyl]- amino] -5,6, 7, 8-tetrahydro-2-naphthalenyl] oxy]-2- methoxybenzoic acid hydrochloride NMR (DMSO-d6, 8) : 1.75-2. 00 (1H, m), 2.20-2. 40 (1H, m), 2.60-3. 60 (7H, m), 3. 80 (3H, s), 5.05-5. 15 (1H, m), 6.75-6. 90 (2H, m), 7.05-7. 25 (4H, m), 7.40-7. 50 (4H, m) MS (m/z): 468 (M+1) (10) 3-[[(7S)-7-[[(2R)-2-(4-Chlorophenyl)-2-hydroxyethyl]- amino] -5,6, 7,8-tetrahydro-2-naphthalenyl] benzoic acid hydrochloride

NMR (DMSO-d6, 6) : 1.80-2. 05 (1H, m), 2.30-2. 50 (1H, m), 2.70-3. 60 (7H, m), 5.10-5. 20 (1H, m), 7.20 (1H, d, J=8Hz), 7. 40-7. 75 (7H, m), 7.90 (2H, t, J=8Hz), 8.18 (1H, s) MS (m/z): 422 (M+1) (11) 4- [ [ (7S)-7- [ [ (2R)-2- (4-Chlorophenyl)-2-hydroxyethyl]- amino] -5,6, 7, 8-tetrahydro-2-naphthalenyl] oxy] benzoic acid hydrochloride NMR (DMSO-d6, 8) : 1.75-2. 00 (1H, m), 2.30-2. 45 (1H, m), 2.70-3. 60 (7H, m), 5. 00-5.10 (1H, m), 6. 80-7.00 (4H, m), 7.20 (1H, d, J=8Hz), 7.40-7. 50 (4H, m), 7.90 (1H, d, J=8Hz) MS (m/z): 438 (M+1) (12) 4-[[(7S)-7-[[(2R)-2-(4-Chlorophenyl)-2-hydroxyethyl]- amino] -5,6, 7, 8-tetrahydro-2-naphthalenyl] oxy]-2- methoxybenzoic acid hydrochloride NMR (DMSO-d6, 5) : 1. 85-2. 00 (1H, m), 2.30-2. 40 (1H, m), 2.70-3. 60 (7H, m), 3.78 (3H, s), 5.00-5. 10 (1H, m), 6.40-6. 50 (1H, m), 6.70-6. 95 (3H, m), 7.20 (1H, d, J=8Hz), 7. 40-7. 50 (4H, m), 7. 70 (1H, d, J=8Hz).

MS (m/z): 468 (M+1) (13) 4-[(7S)-7-[[(2R)-2-(4-Chlorophenyl)-2-hydroxyethyl]- amino] -5,6, 7, 8-tetrahydro-2-naphthalenyl]-3- methoxybenzoic acid hydrochloride NMR (DMSO-d6, 8) : 1.75-1. 85 (1H, m), 2.40 (3H, s), 2.40-2. 50 (1H, m), 2.70-3. 00 (7H, m), 5.00-5. 10 (1H, m), 7.00-7. 30 (4H, m), 7.35-7. 45 (5H, m), 7.80-7. 90 (1H, m) MS (m/z): 436 (M+1) (14) 5-[(7S)-7-[[(2R)-2-(4-Chlorophenyl)-2-hydroxyethyl]- amino]-5, 6,7, 8-tetrahydro-2-naphthalenyl]-2-

fluorobenzoic acid hydrochloride NMR (DMSO-d6, b) : 1. 80-2. 00 (1H, m), 2. 30-2. 40 (1H, m), 2.70-3. 60 (7H, m), 5.00-5. 10 (1H, m), 7.15-7. 50 (8H, m), 7.85-7. 95 (1H, m), 8. 00-8.10 (1H, m) MS (m/z): 440 (M+1) (15) 2-Chloro-5-[[(7S)-7-[[(2r)-2-(4-Chlorophenyl)-2- hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2-naphthalenyl] - oxy]benzoic acid hydrochloride NMR (DMSO-d6, #) : 1.75-1.90 (1H, m), 2.25-2.40 (1H, m), 2.70-3. 60 (7H, m), 5.00-5. 10 (1H, m), 6.85-6. 95 (2H, m), 7.15-7. 30 (3H, m), 7.45-7. 55 (5H, m) MS (m/z): 471 (M+1) (16) 3-Chloro-2- [ [ (7S)-7- [ [ (2R)-2- (4-chlorophenyl)-2- hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2-naphthalenyl] - oxy] isonicotinic acid hydrochloride NMR (DMSO-d6, 8) : 1.75-1. 90 (1H, m), 2.20-2. 40 (1H, m), 2.70-3. 70 (7H, m), 5.00-5. 10 (1H, m), 6.85-7. 20 (3H, m), 7.33 (1H, d, J=5Hz), 7. 40-7.50 (4H, m), 8.10 (1H, d, J=5Hz) MS (m/z): 473 (M+1) (17) 3-[[(7S)-7-[[(2R)-2-(5, 6-Dichloro-3-pyridyl) -2- hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2-naphthalenyl] - oxy] benzoic acid hydrochloride NMR (DMSO-d6, 5) : 1. 80-1. 95 (1H, m), 2. 30-2. 40 (1H, m), 2.70-3. 40 (7H, m), 5.10-5. 20 (1H, m), 6.80-6. 95 (2H, m), 7.10-7. 75 (5H, m), 8.20 (1H, d, J=2Hz), 8.40 (1H, d, J=2Hz) MS (m/z): 473 (M+1) (18) 5-[[(7S)-7-[[(2R)-2-(6-Chloro-3-pyridyl)-2- hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2-naphthalenyl] - oxy]-2-methoxybenzoic acid hydrochloride

NMR (DMSO-d6, 5) : 1.75-1.85 (1H, m), 2.30-2. 40 (1H, m), 2.70-3. 30 (7H, m), 3. 80 (3H, s), 5.00-5. 10 (1H, m), 6.65-6. 80 (2H, m), 7.00-7. 20 (4H, m), 7.55 (1H, d, J=8Hz), 7.90 (1H, dd, J=2,8Hz), 8.45 (1H, d, J=2Hz) (19) 3-[[(7S)-7-[[(2R)-2-Hydroxy-2-(4-methylphenyl) ethyl]- amino] -5,6, 7, 8-tetrahydro-2-naphthalenyl] oxy] benzoic acid hydrochloride NMR (DMSO-d6, 8) : 1.75-2. 00 (2H, m), 2.30 (3H, s), 2.70-3. 70 (7H, m), 5.00-5. 10 (1H, m), 6.80-6. 95 (2H, m), 7.10-7. 70 (9H, m) MS (m/z): 418 (M+1) (20) 2-Chloro-5-[[(7S)-7-[[(2r)-2-(6-chloro-3-pyridyl)-2- hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2- naphthalenyl] oxy] benzoic acid hydrochloride NMR (DMSO-d6, 5) : 1.80-1. 95 (1H, m), 2.30-2. 40 (1H, m), 2.70-3. 70 (7H, m), 5.10-5. 15 (1H, m), 6.85-6. 95 (2H, m), 7.15-7. 30 (3H, m), 7.50-7. 60 (2H, m), 7.90 (1H, dd, J=2,8Hz), 8.45 (1H, d, J=2Hz) MS (m/z): 473 (M+1) (21) 5-[[(7S)-7-[[(2R)-2-(5, 6-Dichloro-3-pyridyl) -2- hydroxyethyl] amino] -5, 6,7, 8-tetrahydro-2- naphthalenyl] oxy]-2-methoxybenzoic acid hydrochloride NMR (DMSO-d6, 5) : 1.75-1. 95 (1H, m), 2.25-2. 40 (1H, m), 2.70-3. 70 (7H, m), 3.90 (3H, s), 5.10-5. 20 (1H, m), 6.65-6. 85 (2H, m), 7.10-7. 30 (4H, m), 8.20 (1H, d, J=2Hz), 8.45 (1H, d, J=2Hz) MS (m/z): 503 (M+1) (22) 2-Chloro-5-[[(7S)-7-[[(2R)-2-hydroxy-2-(6-methyl-3- pyridyl) ethyl] amino]-5, 6,7, 8-tetrahydro-2- naphthalenyl] oxy] benzoic acid dihydrochloride

NMR (DMSO-d6, 5) : 1.70-1. 95 (1H, m), 2.25-2. 40 (1H, m), 2.75 (3H, s), 2.70-3. 70 (7H, m), 5. 20-5.35 (1H, m), 6. 85-6. 95 (2H, m), 7.10-7. 30 (3H, m), 7.40-7. 55 (1H, m), 7.80 (1H, d, J=8Hz), 8.50 (1H, d, J=8Hz), 8.80 (1H, s) MS (m/z): 453 (M+1) (23) 4- [ (7S)-7- [ [ (2R)-2- (5, 6-Dichloro-3-pyridyl) -2- hydroxyethyl] amino]-5, 6, 7, 8-tetrahydro-2- naphthalenyl] benzoic acid hydrochloride NMR (DMSO-d6, 5) : 1.75-1. 95 (1H, m), 2.25-2. 40 (1H, m), 2.70-3. 60 (7H, m), 5.10-5. 20 (1H, m), 7. 20 (1H, d, J=8Hz), 7. 40-7. 50 (2H, m), 7. 70 (1H, d, J=8Hz), 8.00 (1H, d, J=8Hz), 8.20 (1H, d, J=2Hz), 8.50 (1H, d, J=2Hz) MS (m/z): 457 (M+1) (24) 4-[(7S)-7-[[(2R)-2-(4-Chlorophenyl)-2-hydroxyethyl]- amino] -5,6, 7, 8-tetrahydro-2-naphthalenyl]-2- fluorobenzoic acid hydrochloride NMR (DMSO-d6, 8) : 1.80-1. 95 (1H, m), 2.25-2. 40 (1H, m), 2.70-3. 60 (7H, m), 5.00-5. 10 (1H, m), 7.20 (1H, d, J=8Hz), 7.40-7. 65 (8H, m), 7.90 (1H, t, J=8Hz) MS (m/z): 440 (M+1) (25) 4-[(7S)-7-[[(2R)-2-(4-Chlorophenyl)-2-hydroxyethyl]- amino-5, 6,7, 8-tetrahydro-2-naphthalenyl]-3- fluorobenzoic acid hydrochloride NMR (DMSO-d6, 8) : 1.70-1. 95 (1H, m), 2.30-2. 40 (1H, m), 2.70-3. 50 (7H, m), 5.00-5. 10 (1H, m), 7.20-7. 90 (1OH, m) MS (m/z): 440 (M+1) (26) 2-Chloro-4-[(7S)-7-[[(2R)-2-(4-chlorophenyl)-2- hydroxyethyl] amino-5, 6,7, 8-tetrahydro-2-naphthalenyl] -

benzoic acid hydrochloride NMR (DMSO-d6, 6) : 1.80-2. 00 (1H, m), 2.25-2. 40 (1H, m), 2.70-3. 70 (7H, m), 5.10-5. 20 (1H, m), 7.15-7. 20 (1H, m), 7.35-7. 90 (9H, m) MS (m/z): 456 (M+1) (27) 3-Chloro-4-[(7S)-7-[[(2R)-2-(4-chlorophenyl)-2- hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2-naphthalenyl] - benzoic acid hydrochloride NMR (DMSO-d6, 8): 1.80-2. 00 (1H, m), 2.30-2. 40 (1H, m), 2.70-3. 40 (7H, m), 5.00-5. 15 (1H, m), 7.20-7. 30 (2H, m), 7.40-7. 60 (6H, m), 7.90-8. 05 (2H, m) MS (m/z): 456 (M+1) (28) 4-[(7S)-7-[[(2R)-2-(4-Chlorophenyl)-2-hydroxyethyl]- amino]-5, 6,7, 8-tetrahydro-2-naphthalenyl]-2- methylbenzoic acid hydrochloride NMR (DMSO-d6, 8) : 1.80-2. 00 (1H, m), 2.30-2. 40 (1H, m), 2. 59 (3H, s), 2. 70-3. 40 (7H, m), 5.05-5. 15 (1H, m), 7.24 (1H, d, J=8Hz), 7.30-7. 65 (8H, m), 7.90 (1H, d, J=8Hz) MS (m/z): 436 (M+1) (29) 4- [ (7S)-7- [ [ (2R)-2-Hydroxy-2- (4-methylphenyl) ethyl] - amino] -5,6, 7, 8-tetrahydro-2-naphthalenyl] benzoic acid hydrochloride NMR (DMSO-d6, 8) : 1.80-2. 00 (1H, m), 2.31 (3H, s), 2.25-2. 50 (1H, m), 2.70-3. 70 (7H, m), 5.00-5. 10 (1H, m), 6.85-6. 95 (2H, m), 7.10-7. 55 (7H, m), 7.80 (2H, d, J=8Hz), 8.00 (2H, d, J=8Hz) MS (m/z): 402 (M+1) (30) 5-[(7S)-7-[[(2R)-2-(4-Chlorophenyl)-2-hydroxyethyl]- amino] -5,6, 7, 8-tetrahydro-2-naphthalenyl]-2- methoxybenzoic acid hydrochloride

NMR (DMSO-d6, : 1.70-2. 00 (1H, m), 2.25-2. 40 (1H, m), 2. 70-3.70 (7H, m), 3.85 (3H, s), 5.00-5. 15 (1H, m), 7.15-7. 35 (2H, m), 7.40-7. 60 (6H, m), 7.70-7. 90 (2H, m) MS (m/z): 452 (M+1) (31) (2E)-3- [4- [ (7S)-7- [ [ (2R)-2- (4-Chlorophenyl)-2- hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2-naphthalenyl] - phenyl]-2-propenoic acid hydrochloride NMR (DMSO-d6, 8) : 1.80-2. 00 (1H, m), 2.30-2. 45 (1H, m), 2.70-3. 70 (7H, m), 5.05-5. 15 (1H, m), 6.60 (1H, d, J=16Hz), 7.20 (1H, d, J=8Hz), 7.40-7. 80 (11H, m) MS (m/z): 448 (M+1) Example 39 Under nitrogen gas, to a solution of tert-butyl N- <BR> <BR> <BR> [ (2R)-2- (3-chlorophenyl)-2-hydroxyethyl]-N- [ (2S)-7-hydroxy- 1, 2,3, 4-tetrahydro-2-naphthalenyl] carbamate (500 mg) in toluene (5 ml) was added methyl 5-bromo-2-chlorobenzoate (358 ml), 2- (di-tert-butylphosphino) biphenyl (42.8 mg), potassium phosphate (509 mg) and palladium (II) acetate (32.2 mg) and the mixture was stirred at 100°C for 17 hours. The reaction mixture was diluted with ethyl acetate and the precipitate was filtered through a pad of Celite@. After concentration under reduced pressure, the residue was purified by column chromatography on silica gel with ethyl acetate and hexane (1: 4 to 1: 3) to give methyl 5- [ [ (7S)-7- [N- (tert-butoxycarbonyl)-N- [ (2R)-2- (3-chlorophenyl)-2- hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2-naphthalenyl] oxy]- 2-chlorobenzoate (118 mg) as a white solid.

(+) ESI-MS (m/z): 608 (M+Na) + Example 40 To a solution of methyl 5- [ [ (7S)-7- [N- (tert- <BR> <BR> <BR> butoxycarbonyl)-N- [ (2R)-2- (3-chlorophenyl)-2-hydroxyethyl]-

amino] -5,6, 7, 8-tetrahydro-2-naphthalenyl] oxy]-2- chlorobenzoate (118 mg) in methanol (1.2 ml) was added IN sodium hydroxide (0.4 ml) and the solution was stirred at 60°C for 1 hour. The solution was cooled to room temperature. To the solution was added IN hydrochloric acid (0.45 ml) dropwise. The solution was extracted with ethyl acetate and washed with IN hydrochloric acid and water. The extract was dried over magnesium sulfate, filtrated and concentrated under reduced pressure to give 5- [ [ (7S)-7- [N- (tert-butoxycarbonyl)-N- [ (2R)-2- (3-chlorophenyl)-2- hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2-naphthalenyl] oxy]- 2-chlorobenzoic acid (89.2 mg) as a white solid.

(-) ESI-MS (m/z): 570 (M-1)- Example 41 The following compounds were obtained according to a similar manner to that of Example 40.

(1) 3- [ [ (7S)-7- [N- (tert-Butoxycarbonyl)-N- [ (2R)-2-hydroxy- 2- (3-pyridyl) ethyl] amino] -5, 6,7, 8-tetrahydro-2- naphthalenyl] oxy] benzoic acid MS (m/z): 505 (M+1) (2) 3- [ [ (7S)-7- [N- (tert-Butoxycarbonyl)-N- [ (2R)-2- (6- chloro-3-pyridyl) -2-hydroxyethyl] amino]-5, 6,7, 8- tetrahydro-2-naphthalenyl] oxy] benzoic acid MS (m/z) : 539 (M+1) (3) 3- [ [ (7S)-7- [N- (tert-Butoxycarbonyl)-N- [ (2R)-2- (4- chlorophenyl) -2-hydroxyethyl] amino] -5, 6,7, 8-tetrahydro- 2-naphthalenyl] oxy] benzoic acid MS (m/z): 538 (M+1) (4) 3- [ (7S)-7- [N- (tert-Butoxycarbonyl)-N- [ (2R)-2- (4- chlorophenyl) -2-hydroxyethyl] amino] -5, 6,7, 8-tetrahydro-

2-naphthalenyl] benzoic acid MS (m/z): 522 (M+1) (5) 4-[[(7S)-7-[N-(tert-Butoxycarbonyl-N-[(2R)-2-(4- chlorophenyl) -2-hydroxyethyl] amino-5, 6, 7,8-tetrahydro- 2-naphthalenyl] oxy] benzoic acid MS (m/z): 536 (M-1) (6) 4- [ [ (7S)-7- [N- (tert-Butoxycarbonyl)-N- [ (2R)-2- (4- chlorophenyl)-2-hydroxyethyl] amino]-5, 6,7, 8-tetrahydro- 2-naphthalenyl] oxy]-2-methoxybenzoic acid MS (m/z): 568 (M+1) (7) 4- [ (7S)-7- [N- (tert-Butoxycarbonyl)-N- [ (2R)-2- (4- chlorophenyl)-2-hydroxyethyl] amino]-5, 6,7, 8-tetrahydro- 2-naphthalenyl]-3-methylbenzoic acid MS (m/z): 536 (M+1) (8) 5- [ [ (7S)-7- [N- (tert-Butoxycarbonyl)-N- [ (2R)-2- (4- chlorophenyl)-2-hydroxyethyl] amino]-5, 6,7, 8-tetrahydro- 2-naphthalenyl] oxy]-2-chlorobenzoic acid MS (m/z): 572 (M+1) (9) 2- [ [ (7S)-7- [N- (tert-Butoxycarbonyl)-N- [ (2R)-2- (4- chlorophenyl)-2-hydroxyethyl] amino]-5, 6,7, 8-tetrahydro- 2-naphthalenyl] oxy]-2-chloroisonicotinic acid MS (m/z) : 574 (M+1) (10) 3- [ [ (7S)-7- [N- (tert-Butoxycarbonyl)-N- [ (2R)-2- (5, 6- dichloro-3-pyridyl)-2-hydroxyethyl] amino]-5, 6,7, 8- tetrahydro-2-naphthalenyl] oxy] benzoic acid MS (m/z): 573 (M+1) (11) 3- [ [ (7S)-7- [N- (tert-Butoxycarbonyl)-N- [ (2R)-2-hydroxy- 2- (4-methylphenyl) ethyl] amino] -5, 6,7, 8-tetrahydro-2-

naphthalenyl] oxy] benzoic acid MS (m/z): 518 (M+1) (12) 5-[[(7S)-7-[N-(tert-Butoxycarbonyl-N-[(2R)-2-(6- chloro-3-pyridyl) -2-hydroxyethyl] amino] -5, 6,7, 8- tetrahydro-2-naphthalenyl] oxy]-2-chlorobenzoic acid MS (m/z): 573 (M+1) (13) 5- [ [ (7S)-7- [N- (tert-Butoxycarbonyl)-N- [ (2R)-2-hydroxy- 2-(6-methyl-3-pyridyl) ethyl] amino]-5, 6,7, 8-tetrahydro- 2-naphthalenyl] oxy]-2-chlorobenzoic acid MS (m/z): 553 (M+1) (14) 4- [ (7S)-7- [N- (tert-Butoxycarbonyl)-N- [ (2R)-2- (5, 6- dichloro-3-pyridyl)-2-hydroxyethyl] amino]-5, 6,7, 8- tetrahydro-2-naphthalenyl] benzoic acid MS (m/z): 557 (M+1) (15) 4- [ (7S)-7- [N- (tert-Butoxycarbonyl)-N- [ (2R)-2- (4- chlorophenyl)-2-hydroxyethyl] amino]-5, 6,7, 8-tetrahydro- 2-naphthalenyl]-2-fluorobenzoic acid MS (m/z): 541 (M+1) (16) 4- [ (7S)-7- [N- (tert-Butoxycarbonyl)-N- [ (2R)-2- (4- chlorophenyl)-2-hydroxyethyl] amino]-5, 6,7, 8-tetrahydro- 2-naphthalenyl]-3-fluorobenzoic acid MS (m/z) : 540 (M+1) (17) 4- [ (7S)-7- [N- (tert-Butoxycarbonyl)-N- [ (2R)-2- (4- chlorophenyl)-2-hydroxyethyl] amino]-5, 6,7, 8-tetrahydro- 2-naphthalenyl]-2-chlorobenzoic acid MS (m/z): 556 (M+1) (18) 4- [ (7S)-7- [N- (tert-Butoxycarbonyl)-N- [ (2R)-2- (4- chlorophenyl)-2-hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-

2-naphthalenyl] -3-chlorobenzoic acid MS (m/z): 556 (M+1) (19) 4- [ (7S)-7- [N- (tert-Butoxycarbonyl)-N- [ (2R)-2- (4- chlorophenyl) -2-hydroxyethyl] amino-5, 6,7, 8-tetrahydro- 2-naphthalenyl]-2-methylbenzoic acid MS (m/z): 536 (M+1) (20) 4- [ (7S)-7- [N- (tert-Butoxycarbonyl)-N- [ (2R)-2-hydroxy-2- (4-methylphenyl) ethyl] amino] -5, 6,7, 8-tetrahydro-2- naphthalenyl] benzoic acid MS (m/z): 502 (M+1) (21) (2E)-3- [4- [ (7S)-7- [N- (tert-Butoxycarbonyl)-N- [ (2R)-2- (4-chlorophenyl)-2-hydroxyethyl] amino]-5, 6,7, 8- tetrahydro-2-naphthalenyl] phenyl]-2-propenoic acid MS (m/z): 548 (M+1) Example 42 To a solution of methyl 5- [ [ (7S)-7- [N- (tert- butoxycarbonyl)-N- [ (2R)-2- (3-chlorophenyl)-2- hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2-naphthalenyl] oxy]- 2- [ [tert-butyl (dimethyl) silyl] oxy] benzoate (150 mg) in tetrahydrofuran (1.5 ml) was added 1M tetrabutylammonium fluoride in tetrahydrofuran (0. 22 ml) at 4°C. The mixture was stirred at room temperature for 1.5 hours. The mixture was extracted with ethyl acetate and washed with water and brine. The extract was dried over magnesium sulfate and concentrated under reduced pressure. The residue was purified by column chromatography on silica gel with ethyl acetate and hexane (1: 3 to 1: 1) to give methyl 5- [ [ (7S)-7- [N- (tert-butoxycarbonyl)-N- [ (2R)-2- (3-chlorophenyl)-2- hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2-naphthalenyl] oxy]- 2-hydroxybenzoate (123 mg) as a white solid.

(+) ESI-MS (m/z): 590 (M+Na) +

Example 43 The following compound was obtained according to a similar manner to that of Example 42.

Methyl 3- [ [ (7S)-7- [N- (tert-butoxycarbonyl)-N- [ (2R)-2- (3-chlorophenyl) -2-hydroxyethyl] amino] -5, 6,7, 8-tetrahydro-2- naphthalenyl] oxy]-5-hydroxybenzoate (+) ESI-MS (m/z): 590 (M+Na) + Example 44 To a solutionof 5- [. [ (7S)-7- [N- (tert-butoxycarbonyl)-N- [ (2R)-2- (3-chlorophenyl)-2-hydroxyethyl] amino] -5,6, 7,8- tetrahydro-2-naphthalenyl] oxy]-2-hydroxybenzoate (123 mg) in methanol (1.2 ml) was added 1N sodium hydroxide (0.434 ml) and the solution was stirred at 60°C for 1 hour. The solution was cooled to room temperature and to the solution was added 1N hydrochloric acid (0.45 ml) dropwise. The solution was extracted with ethyl acetate and washed with 1N hydrochloric acid and water. The extract was dried over magnesium sulfate, filtrated and concentrated under reduced pressure to give the carboxylic acid as a white solid. The carboxylic acid was dissolved in 1,4-dioxane (0.5 ml) and to the solution was added 4N hydrogen chloride in 1,4-dioxane (2 ml) dropwise. The solution was stirred at room temperature for 3 hours. The solution was concentrated under reduced pressure to give 5- [ [ (7S)-7- [ [ (2R)-2- (3- chlorophenyl)-2-hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2- naphthalenyl] oxy]-2-hydroxybenzoic acid hydrochloride (99.0 mg) as a white solid.

NMR (DMSO-d6, 8) : 1.23 (1H, m), 1.81-1. 87 (2H, m), 2.27 (1H, m), 2.84 (2H, m), 3.16-3. 68 (3H, m), 4.96- 5.06 (1H, m), 6.30-6. 38 (1H, m), 6.68-7. 50 (10H, m), 8.91 (1H, br s), 9.29 (1H, br s), 12.88 (1H, br s) (-) ESI-MS (m/z): 452 (M-HCl-1)

Example 45 The following compounds were obtained according to a similar manner to that of Example 44.

(1) 3-[[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2-hydroxyethyl]- amino-5, 6,7, 8-tetrahydro-2-naphthalenyl] oxy]-5- methoxybenzoic acid hydrochloride NMR (DMSO-d6, 8) : 1.15-1. 25 (1H, m), 1.83-1. 88 (2H, m), 2.27-2. 32 (1H, m), 2.78-2. 86 (2H, m), 3.08-3. 48 (2H, m), 3.68-3. 73 (1H, m), 3.80 (3H, s), 5.02- 5.05 (1H, m), 6.35-6. 37 (1H, m), 6.82-7. 50 (10H, m), 8.91 (1H, br s), 9.32 (1H, br s) (-) ESI-MS (m/z): 466 (M-HC1-1)- (2) 3-[[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2-hydroxyethyl]- amino] -5,6, 7, 8-tetrahydro-2-naphthalenyl] oxy]-5- nitrobenzoic acid hydrochloride NMR (DMSO-d6, 5) : 1.23 (1H, m), 1.84-1. 91 (2H, m), 2.25-2. 35 (1H, m), 2.82-3. 48 (4H, m), 3.68-3. 79 (1H, m), 5.00-5. 04 (1H, m), 6.89-6. 99 (2H, m), 7.18-7. 50 (5H, m), 7.70-7. 87 (2H, m), 8.32-8. 34 (1H, m), 10.0 (1H, br s) (-) ESI-MS (m/z): 481 (M-HC1-1)- (3) 3-Amino-5- [ [ (7S)-7- [ [ (2R)-2- (3-chlorophenyl)-2- hydroxyethyl] amino] -5, 6,7, 8-tetrahydro-2- naphthalenyl] oxy] benzoic acid dihydrochloride NMR (DMSO-d6, 8) : 0.83-0. 89 (1H, m), 1.45-1. 51 (1H, m), 1.84-1. 91 (1H, m), 2.29-2. 35 (1H, m), 2.80-2. 93 (2H, m), 3.13-3. 89 (3H, m), 5.03-5. 07 (1H, m), 6.60-6. 61 (1H, m), 6.76-7. 50 (13H, m), 8.94 (1H, br s), 9.33 (1H, br s) (+) ESI-MS (m/z): 453 (M-2HC1+1) +

(4) 5- [ [ (7S)-7- [ [ (2R)-2- (3-Chlorophenyl)-2-hydroxyethyl]- amino] -5,6, 7, 8-tetrahydro-2-naphthalenyl] oxy]-2- cyanobenzoic acid hydrochloride NMR (DMSO-d6, â) : 1.02-1. 35 (1H, m), 1.81-1. 98 (2H, m), 2.15-2. 25 (1H, m), 2.73-2. 89 (2H, m), 3.09-3. 64 (2H, m), 3.67-3. 77 (1H, m), 5.00-5. 04 (1H, m), 6.33 (1H, br), 6.82-7. 85 (10H, m), 9.53 (1H, br s) ' (+) ESI-MS (m/z): 530 (M-HCl+1) + (5) 5-[[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2-hydroxyethyl]- amino] -5,6, 7, 8-tetrahydro-2-naphthalenyl] oxy]-2- methylbenzoic acid hydrochloride NMR (DMSO-d6, 8) : 1.71-1. 90 (1H, m), 2.14-2. 21 (1H, m), 2.46 (3H, s), 2.65-3. 50 (7H, m), 4.88-4. 93 (1H, m), 6.72-7. 47 (10H, m) (-) ESI-MS (m/z): 450 (M-HC1-1)- (6) 2-Amino-5-[[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2- hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2- naphthalenyl] oxy] benzoic acid dihydrochloride NMR (DMSO-d6, 5) : 1.19-1. 23 (1H, m), 1.50-1. 53 (1H, m), 1. 73-1. 76 (1H, m), 2.25-2. 32 (1H, m), 2.68-2. 88 (2H, m), 3.10-3. 28 (2H, m), 3.42-3. 50 (1H, m), 5.03-5. 06 (1H, m), 6.62-6. 63 (1H, m), 6.73-6. 75 (2H, m), 6.87 (1H, d, J=8Hz), 7.04-7. 08 (3H, m), 7. 28-7.29 (1H, m), 7.38-7. 43 (4H, m), 7.50 (1H, s), 8.89 (1H, br s), 9.35 (1H, br s) (+) ESI-MS (m/z): 453 (M-2HCl+1) + (7) 3-[[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2-hydroxyethyl]- amino] -5,6, 7, 8-tetrahydro-2-naphthalenyl] oxy]-5- (dimethylamino) benzoic acid dihydrochloride NMR (DMSO-d6, 8) : 1.51-1. 55 (1H, m), 1.75-1. 90 (2H, m), 2.28-2. 33 (1H, m), 2.73-2. 85 (2H, m), 2.93 (6H, s), 3.14-3. 27 (2H, m), 3.38-3. 50 (1H, m), 5.02-5. 06

(1H, m), 6.63-6. 64 (1H, m), 6.77-7. 50 (10H, m), 8.90 (1H, br s), 9. 26 (1H, br s) (-) ESI-MS (m/z): 479 (M-2HC1-1) (8) 3-(Acetylamino)-5-[[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2- hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2-naphthalenyl] - oxy] benzoic acid hydrochloride NMR (DMSO-d6, 5) : 1. 45-1. 65 (1H, m), 1.74-1. 91 (2H, m), 2.03 (3H, s), 2.28-2. 33 (1H, m), 2.78-2. 93 (2H, m), 3.10-3. 64 (3H, m), 4.97-5. 02 (1H, m), 6.33-6. 36 (1H, m), 6.88-7. 88 (10H, m), 8.95 (2H, br), 10.21 (1H, s), 13.06 (1H, br s) (-) ESI-MS (m/z): 493 (M-HC1-1)- (9) 3-[[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2-hydroxyethyl]- amino] -5,6, 7, 8-tetrahydro-2-naphthalenyl] oxy]-5- hydroxybenzoic acid hydrochloride NMR (DMSO-d6, 8) : 1.42-1. 60 (1H, m), 1.71-1. 82 (2H, m), 2.22-2. 35 (1H, m), 2.77-2. 94 (2H, m), 3.07-3. 75 (3H, m), 5.01-5. 05 (1H, m), 6.34 (1H, br), 6.59- 7.50 (10H, m), 9.03 (2H, br), 10.01 (1H, s), 12.94 (1H, br s) (-) ESI-MS (m/z): 452 (M-HCl-1)- (10) 5-[[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2-hydroxyethyl]- amino] -5,6, 7, 8-tetrahydro-2-naphthalenyl] oxy]-2- (methylamino) benzoic acid dihydrochloride NMR (DMSO-d6, 8) : 1.46-1. 61 (1H, m), 1.67-1. 90 (2H, m), 2.24-2. 36 (1H, m), 2.73-2. 89 (2H, m), 2.88 (3H, s), 3.14-3. 23 (3H, m), 5.03-5. 08 (2H, m), 6.60-6. 77 (3H, m), 7.05-7. 21 (2H, m), 7.35-7. 49 (5H, m), 8.32 (1H, s), 8.93 (1H, br s), 9.39 (1H, br s) (-) ESI-MS (m/z): 465 (M-2HC1-1)- (11) 2-(Acetylamino)5-[[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2-

hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2-naphthalenyl] - oxy] benzoic acid hydrochloride NMR (DMSO-d6, 8) : 1. 59-1. 83 (3H, m), 2.11 (3H, s), 2.25-2. 39 (1H, m), 2. 75-2. 86 (2H, m), 2.92-3. 40 (2H, m), 3.55-3. 63 (1H, m), 5.03-5. 08 (1H, m), 6.35 (1H, br), 6.74-7. 50 (9H, m), 8.38 (1H, d, J=9Hz), 8.94 (1H, br s), 9.36 (1H, br s), 10.84 (1H, s), 13. 30 (1H, br) (-) ESI-MS (m/z): 493 (M-HC1-1) (12) 5-[[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2-hydroxyethyl]- amino] -5,6, 7, 8-tetrahydro-2-naphthalenyl] oxy]-2- [ (methylsulfonyl) amino] benzoic acid hydrochloride NMR (DMSO-d6, 8) : 1.46-1. 65 (1H, m), 1.66-1. 94 (2H, m), 2.27-2. 41 (1H, m), 2.76-2. 94 (2H, m), 3.15 (3H, s), 3.15-3. 77 (3H, m), 5.05-5. 10 (1H, m), 6.36 (1H, br), 6.78-6. 88 (2H, m), 7.08-7. 61 (8H, m), 8.98 (1H, br s), 9.47 (1H, br s), 10.43 (1H, br s) (-) ESI-MS (m/z): 529 (M-HC1-1) (13) 5-[[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2-hydroxyethyl]- amino] -5,6, 7, 8-tetrahydro-2-naphthalenyl] oxy]-2- [(ethoxycarbonyl) amino] benzoic acid hydrochloride NMR (DMSO-d6, 8) : 1.24 (2H, t, J=7Hz), 1.49-1. 67 (1H, m), 1.67-1. 89 (2H, m), 2.28-2. 40 (1H, m), 2.78- 2.92 (2H, m), 3.21-3. 81 (3H, m), 4.18 (3H, q, J=7Hz), 5.04-5. 08 (1H, m), 6.36 (1H, br s), 6.75- 6.85 (2H, m), 7.13 (1H, d, J=8Hz), 7.29-7. 50 (6H, m), 8.25 (1H, d, J=9Hz), 8.93 (1H, br s), 9. 39 (1H, br s), 10.50 (1H, br s) (+) ESI-MS (m/z): 529 (M-HCl+1) + (14) 2- [N-Acetyl-N-methylamino]-5- [ [ (7S)-7- [ [ (2R)-2- (3- chlorophenyl)-2-hydroxyethyl] amino]-5, 6,7, 8-tetrahydro- 2-naphthalenyl] oxy] benzoic acid hydrochloride

NMR (DMSO-d6, 5) : 1.22-1. 40 (1H, m), 1.63 (3H, s), 1.75-2. 02 (2H, m), 2.27-2. 40 (1H, m), 2.81-2. 95 (2H, m), 3.02 (3H, s), 3.16-3. 56 (3H, m), 5.03- 5.07 (1H, m), 6.35 (1H, br s), 6.90-7. 50 (10H, m), 8.95-9. 32 (2H, br), 13.20 (1H, br s) (-) ESI-MS (m/z): 507 (M-HCl-1)- (15) 2- (Benzoylamino)-5- [ [ (7S)-7- [ [ (2R)-2- (3-chlorophenyl)- 2-hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2- naphthalenyl] oxy] benzoic acid hydrochloride NMR (DMSO-d6, 8) : 1.85-1. 91 (2H, m), 2. 32-2. 40 (1H, m), 2.75-3. 56 (6H, m), 5.08-5. 13 (1H, m), 6.37 (1H, br s), 6.51-6. 58 (2H, m), 7.15 (1H, d, J=8Hz), 7.34- 7.65 (9H, m), 7.93-7. 97 (2H, m), 8.69 (1H, d, J=9Hz), 8.99 (1H, br s), 9.56 (1H, br s), 11.99 (1H, s) (-) ESI-MS (m/z): 555 (M-HC1-1)- (16) 3- (Benzoylamino)-5- [ [ (7S)-7- [ [ (2R)-2- (3-chlorophenyl)- 2-hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2- naphthalenyl] oxy] benzoic acid hydrochloride NMR (DMSO-d6, 8) : 1.20-1. 33 (1H, m), 1.79-1. 91 (2H, m), 2.23-2. 38 (1H, m), 2.76-2. 94 (2H, m), 3.15-3. 69 (3H, m), 4.99-5. 06 (1H, m), 6.34-6. 36 (1H, m), 6.85-8. 18 (15H, m), 8.96 (2H, br), 10.50 (1H, s), 13.08 (1H, br) (-) ESI-MS (m/z): 555 (M-HC1-1)- (17) 3-[[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2-hydroxyethyl]- amino] -5,6, 7, 8-tetrahydro-2-naphthalenyl] oxy]-5-(2- furoylamino) benzoic acid hydrochloride NMR (DMSO-d6, 8) : 1.17-1. 32 (1H, m), 1.77-1. 94 (2H, m), 2.23-2. 35 (1H, m), 2.80-2. 94 (2H, m), 3.13-3. 69 (3H, m), 4.99-5. 06 (1H, m), 6.35-6. 36 (1H, m), 6.70 (1H, dd, 1.5, 3.4Hz), 6.85-6. 93 (2H, m),

7.12-7. 21 (2H, m), 7. 39-7. 50 (5H, m), 7.78-7. 80 (1H, m), 7.94-7. 95 (1H, m), 8.14-8. 15 (1H, m), 8.91 (1H, br s), 9.25 (1H, br s), 10.45 (1H, s), 13.10 (1H, br s) (-) ESI-MS (m/z): 555 (M-HC1-1) (18) 3-[[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2-hydroxyethyl]- amino] -5,6, 7, 8-tetrahydro-2-naphthalenyl] oxy]-5-[(2, 2- dimethylpropanoyl) amino] benzoic acid hydrochloride NMR (DMSO-d6, 5) : 1.20 (9H, s), 1.77-1. 94 (2H, m), 2.24-2. 38 (1H, m), 2.77-3. 70 (6H, m), 5.00-5. 06 (1H, m), 6.35 (1H, br s), 6.82-7. 43 (7H, m), 7.50- 7.51 (1H, m), 7.73-7. 74 (1H, m), 8.04-8. 05 (1H, m), 8.89-9. 21 (2H, br), 9.48 (1H, s), 12.95 (1H, br s) (-) ESI-MS (m/z): 535 (M-HCl-1) (19) 3-[[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2-hydroxyethyl]- amino] -5,6, 7, 8-tetrahydro-2-naphthalenyl] oxy]-5- [ (methoxycarbonyl) amino] benzoic acid hydrochloride NMR (DMSO-d6, 5) : 1.13-1. 26 (1H, m), 1.76-1. 95 (2H, m), 2.25-2. 38 (1H, m), 2.80-2. 93 (2H, m), 3.14-3. 49 (3H, m), 3.69 (3H, s), 5.03-5. 08 (1H, m), 6.35- 6.37 (1H, m), 6.81-7. 50 (9H, m), 7.79 (1H, d, J=1. 3Hz), 8.91 (1H, br s), 9.35 (1H, br s), 9.95 (1H, s), 13.03 (1H, br s) (-) ESI-MS (m/z): 509 (M-HCl-1) (20) 3- [ [ (Benzyloxy) carbonyl] amino]-5- [ [ (7S)-7- [ [ (2R)-2- (3- chlorophenyl)-2-hydroxyethyl] amino]-5, 6,7, 8-tetrahydro- 2-naphthalenyl] oxy] benzoic acid hydrochloride NMR (DMSO-d6, 5) : 1.12-1. 34 (1H, m), 1.84-1. 91 (2H, m), 2.28-2. 38 (1H, m), 2. 80-2.93 (2H, m), 3.13-3. 59 (3H, m), 4.49 (1H, s), 5.04-5. 08 (1H, m), 5.15 (1H, s), 6.35 (1H, br), 6.82-7. 83 (15H, m), 8.94 (1H, br s), 9.35 (1H, br s), 9.95 (1H, s), 13.05 (1H,

br s) (-) ESI-MS (m/z): 586 (M-HCl-1)- (21) 5-[[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2-hydroxyethyl]- amino] -5,6, 7, 8-tetrahydro-2-naphthalenyl] oxy]-2-[(2, 2- dimethylpropanoyl) amino] benzoic acid hydrochloride NMR (DMSO-d6, 5) : 1.24 (9H, s), 1.83-1. 91 (1H, m), 2.28-2. 35 (1H, m), 2.78-2. 92 (3H, m), 3.20-3. 52 (3H, m), 3.56-3. 78 (1H, m), 5.05-5. 09 (1H, m), 6.36 (1H, br), 6. 37 (1H, d, J=2Hz), 6.82 (1H, dd, J=2,8Hz), 7.13 (1H, d, J=8Hz), 7.30 (1H, dd, J=3, 9Hz), 7. 34-7.52 (6H, m), 8.61 (1H, d, J=9Hz), 8. 95 (1H, br s), 9.43 (1H, br s), 11.33 (1H, s) (-) ESI-MS (m/z): 535 (M-HC1-1)- (22) 5-[[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2-hydroxyethyl]- amino] -5,6, 7, 8-tetrahydro-2-naphthalenyl] oxy]-2- (2-oxo- 1-pyrrolidinyl) benzoic acid hydrochloride NMR (DMSO-d6, 5) : 1.75-1. 93 (1H, m), 2.03-2. 16 (2H, m), 2.25-2. 37 (2H, m), 2.79-3. 78 (10H, m), 5.04-5. 08 (1H, m), 6.35 (1H, br), 6. 84-7. 62 (1OH, m), 8. 95 (1H, br s), 9.39 (1H, br s), 12.91 (1H, br s) (-) ESI-MS (m/z): 519 (M-HCl-1) (23) 3-[(Anilinocarbonyl)amino]-5-[[(7S)-7-[[(2R)-2-(3- chlorophenyl)-2-hydroxyethyl] amino]-5, 6,7, 8-tetrahydro- 2-naphthalenyl] oxy] benzoic acid hydrochloride NMR (DMSO-d6, 8) : 1. 20-1. 31 (1H, m), 1. 75-1. 96 (2H, m), 2.22-2. 35 (1H, m), 2.78-2. 98 (4H, m), 3.61-3. 74 (1H, m), 5.00-5. 04 (1H, m), 6.34-6. 36 (1H, m), 6.84-7. 00 (4H, m), 7.15-7. 50 (10H, m), 8.32-8. 33 (1H, m), 8.99 (2H, br), 9.12 (1H, s), 9.48 (1H, s), 12.98 (1H, br s) (-) ESI-MS (m/z): 570 (M-HCl-1)

(24) 3-[[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2-hydroxyethyl]- amino]-5, 6,7, 8-tetrahydro-2-naphthalenyl] oxy]-5- [[(methylamino) carbonyl] amino] benzoic acid hydrochloride NMR (DMSO-d6, 8) : 1.13-1. 23 (1H, m), 1.84-1. 98 (2H, m), 2. 28-2. 36 (1H, m), 2. 61 (3H, d, J=4Hz), 2.79-2. 99 (4H, m), 3.56-3. 70 (1H, m), 5.00-5. 05 (1H, m), 6.19-6. 21 (1H, m), 6.34-6. 35 (1H, m), 6.80-7. 00 (3H, m), 7.16 (1H, d, J=8Hz), 7.41-7. 65 (5H, m), 7.88 (1H, s), 8.99 (1H, br s), 9.08 (1H, s), 9.19 (1H, br s), 12.93 (1H, br) (+) ESI-MS (m/z): 510 (M-HCl+1) + (25) 4-[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2-hydroxyethyl]- amino] -5,6, 7, 8-tetrahydro-2-naphthalenyl]-3- methylbenzoic acid hydrochloride NMR (200MHz, DMSO-d6, 8) : 1.70-1. 98 (2H, m), 2.20-2. 36 (1H, m), 2.28 (3H, s), 2.71-2. 99 (3H, m), 3.11- 3.32 (2H, m), 3.52 (1H, br), 5.00 (1H, br), 6.33- 6.38 (1H, m), 6.48-6. 58 (1H, m), 6.87-6. 91 (1H, m), 7.11-7. 52 (7H, m), 7.78-7. 86 (1H, m), 8.87 (1H, br), 12.9 (1H, br) (-) ESI-MS (m/z) : 434 (M-HC1-1)- (26) 2-[[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2-hydroxyethyl]- amino-5, 6,7, 8-tetrahydro-2-naphthalenyl] oxy]-5- chloroisonicotinic acid hydrochloride NMR (200MHz, DMSO-d6, 8) : 1.71-1. 91 (2H, m), 2.27 (1H, br), 2.81-2. 94 (3H, m), 3.12-3. 64 (3H, m), 5.00- 5.05 (1H, m), 6.36 (1H, br), 6.29 (1H, s), 6.92- 6.98 (1H, m), 7.17 (1H, d, J=8. 1Hz), 7.11-7. 52 (7H, m), 7.29 (1H, s), 7.36-7. 47 (3H, m), 7.51 (1H, s), 8.29 (1H, s), 8.89 (1H, br), 9.18 (1H, br) (-) ESI-MS (m/z): 471 (M-HCl-1)-

(27) 6-[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2-hydroxyethyl]- amino] -5,6, 7, 8-tetrahydro-2-naphthalenyl] nicotinic acid dihydrochloride NMR (200MHz, DMSO-d6, 5) : 1.74-1. 99 (2H, m), 2.32-2. 49 (2H, m), 2.85-3. 04 (4H, m), 3. 38 (1H, br), 3.52 (1H, br), 5. 07 (1H, d, J=8. 0Hz), 7.28 (1H, d, J=7.9Hz), 7.47-7. 59 (4H, m), 7.94 (1H, d, J=7.8Hz), 7.96 (1H, s), 8.07 (1H, d, J=8.3Hz), 8.29-8. 34 (1H, m), 8.97 (1H, br), 9.12 (1H, s), 9.31 (1H, br) (-) ESI-MS (m/z): 421 (M-2HC1-1)- (28) 4-[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2-hydroxyethyl]- amino]-5, 6,7, 8-tetrahydro-2-naphthalenyl]-2- methoxybenzoic acid hydrochloride NMR (200MHz, DMSO-d6, 8) : 1.72-1. 96 (1H, m), 2.25-2. 40 (1H, m), 2. 83-3. 19 (5H, m), 3.40-3. 42 (1H, m), 3.54 (1H, br), 3.90 (3H, s), 5.04-5. 08 (1H, m), 6.38 (1H, br), 7.21-7. 29 (3H, m), 7.40-7. 45 (3H, m), 7.51-7. 55 (3H, m), 7.72 (1H, d, J=7.9Hz), 9.18 (1H, br) (-) ESI-MS (m/z): 450 (M-HC1-1) (29) 4-[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2-hydroxyethyl]- amino-5, 6,7, 8-tetrahydro-2-naphthalenyl]-2- fluorobenzoic acid hydrochloride NMR (200MHz, DMSO-d6, #) : 1.85-1. 98 (1H, m), 2.31-2. 36 (1H, m), 2.83-3. 18 (5H, m), 3.35-3. 42 (1H, m), 3.53 (1H, br), 3.90 (3H, s), 5.03-5. 08 (1H, m), 6.93 (1H, dd, J=8. OHz), 9.17 (1H, br) (-) ESI-MS (m/z): 439 (M-HC1-1)- (30) 4-[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2-hydroxyethyl]- amino] -5,6, 7, 8-tetrahydro-2-naphthalenyl]-3- methoxybenzoic acid hydrochloride

NMR (200MHz, DMSO-d6, 8) : 1.71-1. 98 (2H, m), 2.32 (1H, br), 2.28 (3H, s), 2.70-3. 01 (3H, m), 3.11-3. 30 (2H, m), 3.54-3. 63 (1H, m), 3.81 (3H, s), 5.05- 5.10 (1H, m), 6.37 (1H, br), 7.14-7. 63 (1OH, m), 9.14 (1H, br) (-) ESI-MS (m/z): 450 (M-HC1-1)- Example 46 To a solution of methyl 3- [ [ (7S)-7- [N- (tert- <BR> <BR> <BR> <BR> butoxycarbonyl)-N- [ (2R)-2- (3-chlorophenyl)-2-hydroxyethyl]- amino] -5,6, 7, 8-tetrahydro-2-naphthalenyl] oxy)-5- nitrobenzoate (150 mg) in a mixed solution of ethanol (1.5 ml) and water (0.5 ml) were added iron powder (42.1 mg) and ammonium chloride (6.72 mg). The solution was heated under reflux for 2 hours. After cooling to room temperature, the precipitate was filtered through a pad of Celite@. After concentration under reduced pressure, the residue was extracted with ethyl acetate and successively washed with saturated aqueous sodium bicarbonate and brine, and dried over magnesium sulfate. After concentration under reduced pressure, the residue was purified by column chromatography on silica gel with ethyl acetate and hexane (1: 3) to give methyl 3-amino-5- [ [ (7S)-7- [N- (tert-butoxycarbonyl)-N- [ (2R)- 2- (3-chlorophenyl)-2-hydroxyethyl] amino]-5, 6,7, 8-tetrahydro- 2-naphthalenyl] oxy] benzoate (132 mg) as a white solid.

(+) ESI-MS (m/z): 589 (M+Na) + Example 47 To a solution of tert-butyl N- [ (2R)-2- (3-chlorophenyl)- 2-hydroxyethyl]-N-[(2S)-7-(4-fluoro-3-formylphenoxy)- 1, 2,3, 4-tetrahydro-2-naphthalenyl] carbamate (100 mg) in dimethyl sulfoxide (1 ml) were added phenol (19. 5 Al) and potassium carbonate (76.8 mg) and the mixture was stirred at 100°C for 1.5 hours. The solution was diluted with water and ethyl acetate. The organic layer was separated and

washed with brine. The extract was dried over magnesium sulfate, filtrated and concentrated under reduced pressure.

The residue was purified by column chromatography on silica gel with ethyl acetate and hexane to give tert-butyl N- [ (2R)-2- (3-chlorophenyl)-2-hydroxyethyl]-N- [ (2S)-7- (3- formyl-4-phenoxyphenoxy) -1,2, 3, 4-tetrahydro-2-naphthalenyl]- carbamate (70.1 mg) as a white solid.

(+) ESI-MS (m/z): 636 (M+Na) + Example 48 The following compound was obtained according to a similar manner to that of Example 47.

Ethyl 2- [ [ (7S)-7- [N- (tert-butoxycarbonyl)-N- [ (2R)-2- (3- chlorophenyl)-2-hydroxyethyl] amino]-5, 6, 7,8-tetrahydro-2- naphthalenyl] oxy]-5-chloroisonicotinate (+) ESI-MS (m/z): 623 (M+Na) + Example 49 To a solution of methyl 3-amino-5- [ [ (7S)-7- [N- (tert- <BR> <BR> <BR> <BR> butoxycarbonyl)-N- [ (2R)-2- (3-chlorophenyl)-2-hydroxyethyl]- amino] -5,6, 7,8-tetrahydro-2-naphthalenyl] oxy] benzoate (80 mg) in acetonitrile (1 ml) were added sodium cyanoborohydride (26.6 mg), acetic acid (0.02 ml) and 35% formaldehyde solution (0.328 ml). The solution was stirred at room temperature for 17 hours. The solution was concentrated under reduced pressure. The residue was extracted with ethyl acetate and washed with saturated aqueous sodium bicarbonate and water. The extract was dried over magnesium sulfate, filtrated and concentrated under reduced pressure. The residue was purified by column chromatography on silica gel with ethyl acetate and hexane to give methyl 3- [ [ (7S)-7- [N- (tert-butoxycarbonyl)-N- [ (2R)- 2- (3-chlorophenyl)-2-hydroxyethyl] amino]-5, 6,7, 8-tetrahydro- 2-naphthalenyl] oxy]-5- (dimethylamino) benzoate (70.5 mg) as a

white solid.

(+) ESI-MS (m/z): 617 (M+Na) + Example 50 To a solution of methyl 3-amino-5- [ [ (7S)-7- [N- (tert- <BR> <BR> <BR> <BR> butoxycarbonyl)-N- [ (2R)-2- (3-chlorophenyl)-2-hydroxyethyl]- amino] -5,6, 7, 8-tetrahydro-2-naphthalenyl] oxy] benzoate (73 mg) and pyridine (0.021 ml) in dichloromethane (0.1 ml) was added acetic anhydride (0.0013 ml) dropwise at 4°C. The solution was stirred at room temperature for 2 hours. To the solution was added water and the solution was extracted with ethyl acetate and washed with water and brine. The extract was dried over magnesium sulfate, filtrated and concentrated under reduced pressure. The residue was purified by column chromatography on silica gel with ethyl acetate and hexane to give methyl 3- (acetylamino)-5- [ [ (7S)- 7- [N- (tert-butoxycarbonyl)-N- [ (2R)-2- (3-chlorophenyl)-2- hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2-naphthalenyl) oxy] - benzoate (75 mg) as a white solid.

(-) ESI-MS (m/z): 607 (M-1)- Example 51 To a solution of methyl 3-amino-5- [ [ (7S)-7- [N- (tert- butoxycarbonyl)-N- [ (2R)-2- (3-chlorophenyl)-2- hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2-naphthalenyl] oxy]- benzoate (110 mg) and pyridine (0.019 ml) in dichloromethane (1.1 ml) was added benzoyl chloride (0.025 ml) dropwise at 4°C. The solution was stirred at the same temperature for 30 minutes. To the solution were added water and ethyl acetate. The mixture was extracted with ethyl acetate. The extract was washed with water and brine, dried over magnesium sulfate and evaporated. The residue was purified by column chromatography on silica gel with ethyl acetate and hexane (1: 3) to give methyl 3- (benzoylamino)-5- [ [ (7S)-7- [N- (tert-butoxycarbonyl)-N- [ (2R)-2- (3-chlorophenyl)-2-

hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2-naphthalenyl] - oxy] benzoate (129 mg) as a white solid.

(+) ESI-MS (m/z): 693 (M+Na) + Example 52 The following compounds were obtained according to a similar manner to that of Example 51.

(1) Methyl 3-[[(7S)-7-[N-(tert-butoxycarbonyl)-N-[(2R)-2- (3-chlorophenyl) -2-hydroxyethyl] amino] -5, 6,7, 8- tetrahydro-2-naphthalenyl] oxy]-5- (2-furoylamino)- benzoate (+) ESI-MS (m/z): 683 (M+Na) + (2) Methyl 3-[[(7S)-7-[N-(tert-butoxycarbonyl)-N-[(2R)-2- (3-chlorophenyl) -2-hydroxyethyl] amino] -5, 6,7, 8- tetrahydro-2-naphthalenyl] oxy]-5-[(2, 2- dimethylpropanoyl) amino] benzoate (+) ESI-MS (m/z): 673 (M+Na) + Example 53 To a solution of methyl 3-amino-5- [ [ (7S)-7- [N- (tert- <BR> <BR> <BR> <BR> butoxycarbonyl)-N- [ (2R)-2- (3-chlorophenyl)-2-hydroxyethyl]- amino] -5,6, 7, 8-tetrahydro-2-naphthalenyl] oxy] benzoate (110 mg) in a mixed solution of tetrahydrofuran (1 ml) and water (1 ml) was added two drops of 1N sodium hydroxide. To the solution was added methyl chloroformate (0.018 ml) dropwise at 4°C and the reaction mixture was stirred at the same temperature for 30 minutes. To the solution was added water and the mixture was extracted with ethyl acetate and washed with water and brine. The extract was dried over magnesium sulfate, filtrated and concentrated under reduced pressure.

The residue was purified by column chromatography on silica gel with ethyl acetate and hexane (1: 2 to 1: 1) to give methyl 3- [ [ (7S)-7- [N- (tert-butoxycarbonyl)-N- [ (2R)-2- (3-

chlorophenyl)-2-hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2- naphthalenyl] oxy]-5-[(methoxycarbonyl) amino] benzoate (120 mg) as a white solid.

(+) ESI-MS (m/z): 647 (M+Na) + Example 54 To a solution of methyl 3-amino-5- [ [ (7S)-7- [N- (tert- <BR> <BR> <BR> butoxycarbonyl)-N- [ (2R)-2- (3-chlorophenyl)-2-hydroxyethyl]- amino] -5,6, 7, 8-tetrahydro-2-naphthalenyl] oxy] benzoate (100 mg) in a mixed solution of acetone (0.66 ml) and water (0.33 ml) was added sodium carbonate (37.4 mg). To the solution was added benzyl chloroformate (0.03 ml) dropwise at 4°C and the reaction mixture was stirred at room temperature for 2 hours. To the solution was added water and the mixture was extracted with ethyl acetate and washed with water and brine.

The extract was dried over magnesium sulfate, filtrated and concentrated under reduced pressure. The residue was purified by column chromatography on silica gel with ethyl acetate and hexane (1: 2 to 1: 1) to give methyl 3- [ [ (benzyloxy) carbonyl] amino]-5- [ [ (7S)-7- [N- (tert- <BR> <BR> <BR> butoxycarbonyl)-N- [ (2R)-2- (3-chlorophenyl)-2-hydroxyethyl]- amino] -5,6, 7, 8-tetrahydro-2-naphthalenyl] oxy] benzoate (113 mg) as a white solid.

(+) ESI-MS (m/z): 723 (M+Na) + Example 55 To a solution of methyl 3-amino-5- [ [ (7S)-7- [N- (tert- <BR> <BR> <BR> butoxycarbonyl)-N- [ (2R)-2- (3-chlorophenyl)-2-hydroxyethyl]- amino] -5,6, 7, 8-tetrahydro-2-naphthalenyl] oxy] benzoate (110 mg) in dichloromethane (1 ml) was added methyl isocyanate (33.2 mg) and the solution was stirred at room temperature for 2 hours. To the solution was added N, N- diisopropylethylamine (6.8 tl) and the solution was stirred at room temperature for 1 hour. To the solution was added 28% ammonia solution and then added ethyl acetate. The

mixture was extracted with ethyl acetate and washed with brine. The extract was dried over magnesium sulfate, filtrated and concentrated under reduced pressure. The residue was purified by column chromatography on silica gel with ethyl acetate and hexane (1: 2 to 1: 1) to give methyl 3- [ [ (7S)-7- [N- (tert-butoxycarbonyl)-N- [ (2R)-2- (3- chlorophenyl)-2-hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2- naphthalenyl] oxy]-5-[[(methylamino) carbonyl] amino] benzoate (95.2 mg) as a white solid.

(+) ESI-MS (m/z): 646 (M+Na) + Example 56 The following compound was obtained according to a similar manner to that of Example 55.

Methyl 3- [ (anilinocarbonyl) amino]-5- [ [ (7S)-7- [N- (tert- <BR> <BR> <BR> <BR> butoxycarbonyl)-N- [ (2R)-2- (3-chlorophenyl)-2-hydroxyethyl]- amino] -5,6, 7, 8-tetrahydro-2-naphthalenyl] oxy] benzoate (+) ESI-MS (m/z): 708 (M+Na) + Example 57 To a solution of methyl 5- [ [ (7S)-7-amino-5, 6,7, 8- tetrahydro-2-naphthalenyl] oxy]-2- (l-pyrrolidinyl) benzoate (232 mg) in ethanol (5 ml) was added (2R)-2- (3- chlorophenyl) oxirane (97.9 mg) and the mixture was refluxed for 18 hours. After cooling to room temperature, the solvent was removed by evaporation and the residue was purified by column chromatography on silica gel with chloroform and methanol (100: 0 to 90: 10) to give methyl 5- [ [ (7S)-7- [ [ (2R)-2- (3-chlorophenyl)-2-hydroxyethyl] amino] - 5,6, 7,8-tetrahydro-2-naphthalenyl] oxy]-2- (l-pyrrolidinyl)- benzoate (173 mg) as a white solid.

(+) ESI-MS (m/z): 521 (M+1) + Example 58

To a solution of methyl 5- [ [ (7S)-7- [ [ (2R)-2- (3- chlorophenyl)-2-hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2- naphthalenyl] oxy]-2- (1-pyrrolidinyl) benzoate (70 mg) in ethanol (0.7 ml) was added IN sodium hydroxide (0.336 ml) and the mixture was stirred at 75°C for 24 hours. To the mixture was added IN hydrochloric acid (0.202 ml) and the mixture was stirred for 15 minutes and concentrated under reduced pressure. The residue was washed with water to give sodium 5-[[(7S)-7-[[(2R)-2-(3-chlorophenyl)-2-hydroxyethyl]- amino] -5,6, 7, 8-tetrahydro-2-naphthalenyl] oxy]-2- (l- pyrrolidinyl) benzoate (51 mg) as a white solid.

NMR (DMSO-d6, 5) : 1.48-1. 58 (1H, m), 1.88-2. 00 (5H, m), 2.36-2. 79 (6H, m), 3.10-3. 22 (5H, m), 4.63-4. 65 (1H, m), 5.40 (1H, br), 6.69-6. 72 (2H, m), 7.04- 7.16 (4H, m), 7.26-7. 41 (4H, m) (-) ESI-MS (m/z) : 505 (M-Na) Example 59 To a solution of sodium 5-[[(7S)-7-[[(2R)-2-(3- chlorophenyl)-2-hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2- naphthalenyl] oxy]-2- (1-pyrrolidinyl) benzoate (51 mg) in methanol (0.5 ml) was added IN hydrochloric acid (0.29 ml) and the solution was stirred for 10 minutes. The solvent was evaporated and the residue was washed with water to give 5-[[(7S)-7-[[(2R)-2-(3-chlorophenyl)-2-hydroxyethyl]amino]- 5,6, 7,8-tetrahydro-2-naphthalenyl] oxy]-2- (l- pyrrolidinyl) benzoic acid dihydrochloride (47.8 mg) as a white solid.

(-) ESI-MS (m/z): 505 (M-2HC1-1) Example 60 To a solution of methyl 4- [ (7S)-7- [ [ (2R)-2- (6-chloro-3- pyridyl) -2-hydroxyethyl] amino] -5, 6,7, 8-tetrahydro-2- naphthalenyl] benzoate (128 mg) in methanol (5.0 ml) was added IN sodium hydroxide (0.30 ml) and the mixture was

stirred for 2 hours at room temperature. The mixture was evaporated in vacuo to give sodium 4-[(7S)-7-[[(2R)-2-(6- chloro-3-pyridyl)-2-hydroxyethyl] amino]-5, 6,7, 8-tetrahydro- 2-naphthalenyl) benzoate (90 mg) as a colorless powder.

NMR (DMSO-d6, 8) : 1.50-1. 70 (1H, m), 1.90-2. 10 (1H, m), 2.50-3. 50 (7H, m), 4.70-4. 80 (1H, m), 7.10-7. 15 (1H, m), 7.20-7. 60 (5H, m), 7.70-8. 00 (3H, m), 8.40 (1H, s) MS (m/z): 423 (M+1) Example 61 The following compounds were obtained according to a similar manner to that of Example 60.

(1) Sodium 3-[[(7S)-7-[[(2R)-2-hydroxy-2-(6-methyl-3- pyridyl) ethyl] amino]-5, 6,7, 8-tetrahydro-2- naphthalenyl] oxy] benzoate NMR (DMSO-d6, 8) : 1.40-1. 50 (1H, m), 1.80-1. 90 (1H, m), 2.43 (3H, s), 2.50-3. 00 (7H, m), 4.60-4. 70 (1H, m), 6.70-6. 80 (2H, m), 6.90-7. 70 (7H, m), 8.40 (1H, d, J=2Hz) MS (m/z) : 419 (M+1) (2) Sodium 4- [ (75)-7- [ ( (2R)-2-hydroxy-2- (6-methyl-3- pyridyl) ethyl] amino]-5, 6,7, 8-tetrahydro-2- naphthalenyl] benzoate NMR (DMSO-d6, 8) : 1.50-1. 70 (1H, m), 1.95-2. 10 (1H, m), 2.44 (3H, s), 2.40-3. 20 (7H, m), 4.60-4. 75 (1H, m), 7.10-7. 60 (7H, m), 7.90 (2H, d, J=8Hz), 8.43 (1H, d, J=2Hz) MS (m/z) : 452 (M+1) (3) Sodium 4-[(7S)-7-[[(2R)-2-(4-chlorophenyl)-2- hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2-naphthalenyl]- 3-methoxybenzoate

NMR (DMSO-d6, zu : 1.40-1. 55 (1H, m), 1.80-2. 00 (1H, m), 2.70-3. 30 (7H, m), 3.74 (3H, s), 4.60-4. 70 (1H, m), 6.85-6. 95 (2H, m), 6.90-7. 60 (10H, m) MS (m/z): 452 (M+1) (4) Sodium 1- [ (7S)-7- [ [ (2R)-2- (4-chlorophenyl)-2- hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2-naphthalenyl] - 4-piperidinecarboxylate NMR (DMSO-d6, 8) : 1.30-3. 00 (16H, m), 3.40-3. 50 (2H, m), 4. 60-4. 70 (1H, m), 6.75-6. 90 (3h, m), 7.20-7. 40 (4H, m) MS (m/z): 429 (M+1) Example 62 To a solution of tert-butyl N- [ (2R)-2- (4-chlorophenyl)- 2-hydroxyethyl]-N-[(2S)-7-hydroxy-1, 2,3, 4-tetrahydro-2- naphthalenyl] carbamate (250 mg) in methyl sulfoxide (20 ml) was added methyl 2,3-dichloroisonicotinate (246 mg) and potassium carbonate (124 mg), and the mixture was stirred at 80°C for 18 hours under nitrogen. The mixture was diluted with ethyl acetate and water. The organic layer was separated, washed with brine, dried over magnesium sulfate and evaporated. The residue was purified by column chromatography on silica gel (hexane/ethyl acetate = 2/1) to give methyl 2- [ [ (7S)-7- [N- (tert-butoxycarbonyl)-N- [ (2R)-2- (4-chlorophenyl)-2-hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2- naphthalenyl] oxy]-3-chloroisonicotinate (210 mg) as a colorless powder.

MS (m/z): 588 (M+1) Example 63 To a solution of tert-butyl N- [ (2R)-2- (4-chlorophenyl)- 2-hydroxyethyl]-N-[(2S)-7-(4-formylphenyl)-1, 2,3, 4- tetrahydro-2-naphthalenyl] carbamate (620 mg) in tetrahydrofuran (15 ml) was added sodium hydride (64 mg) and

ethyl (diethoxyphosphinyl) acetate (357 mg), and stirred at room temperature for 0.5 hour under nitrogen. The mixture was diluted with ethyl acetate and water. The organic layer was separated, washed with brine, dried over magnesium sulfate and evaporated. The residue was purified by column chromatography on silica gel (hexane/ethyl acetate = 2/1) to give ethyl (2E)-3- [4- [ (7S)-7- [N- (tert-butoxycarbonyl)-N- [ (2R)-2- (4-chlorophenyl)-2-hydroxyethyl] amino]-5, 6,7, 8- tetrahydro-2-naphthalenyl] phenyl]-2-propenoate (400 mg) as a colorless powder.

MS (m/z): 576 (M+1) Example 64 A mixture of ethyl (2E)-3- [4- [ (7S)-7- [N- (tert- butoxycarbonyl)-N- [ (2R)-2- (4-chlorophenyl)-2- hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2- naphthalenyl] phenyl]-2-propenoate (140 mg), 10% palladium on activated carbon (50% wet, 50 mg), ethanol (10 ml) and chlorobenzene (10 ml) was stirred at room temperature in the presence of hydrogen at an atmospheric pressure for 1.2 hours. To the reaction mixture was added ethanol to dissolve the precipitates. After removal of 10% palladium on activated carbon by filtration, the filtrate was evaporated under reduced pressure. The residue was added 4N hydrogen chloride in 1,4-dioxane (4 ml) dropwise. The solution was stirred at room temperature for 3 hours. The solution was dissolved into a mixture of saturated aqueous sodium bicarbonate and ethyl acetate. After separation, the organic layer was washed with brine, dried over magnesium sulfate and evaporated under reduced pressure. The residue was added 1N sodium hydroxide (0.30 ml) and the mixture was stirred for 2 hours at room temperature. The mixture was evaporated in vacuo to give sodium 3- [4- [ (7S)-7- [ [ (2R)-2- (4- chlorophenyl)-2-hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2- naphthalenyl] phenyl] propanoate (50 mg) as a colorless powder.

NMR (DMSO-d6, 5) : 1.40-1. 55 (1H, m), 1.90-2. 00 (1H, m), 2.17 (2H, t, J=8Hz), 2. 50-3.10 (9H, m), 4.60-4. 70 (1H, m), 7.00-7. 60 (11H, m) MS (m/z): 450 (M+1) Example 65 The following compounds were obtained according to a similar manner to that of Example 33 following a similar manner to that of Example 37.

(1) 5-[[(7S)-7-[[(2R)-2-(6-Chloro-3-pyridyl)-2- hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2-naphthalenyl] - oxy]-2-(methylamino) benzoic acid dihydrochloride NMR (200MHz, DMSO-d6, 8) : 1.8-3. 8 (9H, m), 2.84 (3H, s), 5.05 (1H, m), 6.5-6. 9 (4H, m), 7.0-7. 2 (2H, m), 7.38 (1H, d, J=2. 8Hz), 7.57 (1H, d, J=8.4Hz), 7.90 (1H, d, J=2.4Hz) MS (m/z) : 468 (M+1) (2) 5- [ [ (7S)-7- [ [ (2R)-2- (6-Chloro-3-pyridyl)-2- hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2-naphthalenyl]- oxy]-2-methylbenzoic acid hydrochloride NMR (200MHz, DMSO-d6, 5) : 1.8-3. 8 (9H, m), 2.44 (3H, s), 5.15 (1H, m), 6.6-7. 4 (6H, m), 7. 56 (1H, d, J=8.4Hz), 7.93 (1H, dd, J=2. 2,8. 4Hz), 8.47 (1H, m), 9.02 (1H, m), 9. 38 (1H, m) MS (m/z) : 453 (M+1) (3) 2- (Acetylamino)-5- [ [ (7S)-7- [ [ (2R)-2- (6-chloro-3- pyridyl)-2-hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2- naphthalenyl] oxy] benzoic acid hydrochloride NMR (200MHz, DMSO-d6, 6) : 1.8-2. 0 (1H, m), 2.11 (3H, s), 2.1-3. 0 (3H, m), 3.0-4. 0 (5H, m), 5.15 (1H, m), 6.6-7. 4 (6H, m), 7.90 (1H, m), 8.1-8. 5 (2H, m), 9.02 (1H, m), 9.44 (1H, m)

MS (m/z): 494 (M-1) (4) 5-[[(7S)-7-[[(2R)-2-Hydroxy-2-(3-pyridyl)ethyl)ethyl]amino]- 5,6, 7, 8-tetrahydro-2-naphthalenyl] oxy]-2-methoxybenzoic acid dihydrochloride NMR (200MHz, DMSO-d6, 6) : 1.8-2. 0 (1H, m), 3.0-4. 0 (5H, m), 3.80 (3H, s), 5.14 (1H, m), 6.5-7. 3 (5H, m), 7.7-7. 9 (1H, m), 8.2-8. 4 (1H, m), 8.7-8. 9 (3H, m) MS (m/z): 435 (M+1) (5) 3- [ [ (7S)-7- [ [ (2R)-2-Hydroxy-2- (3-pyridyl) ethyl] amino]- 5, 6, 7, 8-tetrahydro-2-naphthalenyl] oxy]-5- (methylamino)- benzoic acid trihydrochloride NMR (200MHz, DMSO-d6, 8) : 1.8-2. 0 (1H, m), 2.69 (3H, m), 3.0-4. 0 (5H, m), 5.37 (1H, m), 6.5-7. 2 (6H, m), 8.0-8. 2 (1H, m), 8.6-8. 7 (1H, m), 8. 8-9. 0 (2H, m), 9.30 (1H, m), 9.57 (1H, m) MS (m/z): 434 (M+1) (6) 3-[[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2-hydroxyethyl]- amino] -5,6, 7, 8-tetrahydro-2-naphthalenyl] oxy]-5- (3,4, 5,6-tetrahydro-2H-pyran-4-yloxy) benzoic acid hydrochloride NMR (200MHz, DMSO-d, b) : 1.5-2. 2 (5H, m), 2.1-3. 0 (3H, m), 3.0-3. 8 (8H, m), 4.97 (1H, m), 6.33 (1H, m), 6.8-7. 0 (4H, m), 7.18 (2H, d, J=8. 4Hz), 7.3-7. 6 (4H, m) MS (m/z): 538 (M+1) (7) 3-[[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2-hydroxyethyl]- amino] -5,6, 7, 8-tetrahydro-2-naphthalenyl] oxy]-5- (methylamino) benzoic acid dihydrochloride NMR (200MHz, DMSO-d6, 6) : 1.8-2. 0 (1H, m), 2.1-3. 0 (3H, m), 2.69 (3H, m), 3.0-3. 8 (6H, m), 5.09 (1H, m), 6.5-7. 5 (10H, m), 8.27 (1H, m), 8.95 (1H, m), 9.50

(1H, m) MS (m/z): 467 (M+1) (8) 3-[[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2-hydroxyethyl]- amino] -5,6, 7, 8-tetrahydro-2-naphthalenyl] oxy]-5- (3,4, 5,6-tetrahydro-2H-pyran-4-ylamino) benzoic acid dihydrochloride NMR (200MHz, DMSO-d6, 1.5-2. 2 (5H, m), 2.1-3. 0 (3H, m), 3.0-3. 8 (8H, m), 4.66 (1H, m), 4.97 (1H, m), 6.33 (1H, m), 6. 8-7. 0 (4H, m), 7.18 (2H, d, J=8.4Hz), 7.3-7. 6 (4H, m) MS (m/z): 537 (M+1) (9) 3-[[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2-hydroxyethyl]- amino] -5,6, 7, 8-tetrahydro-2-naphthalenyl] oxy]-5- (3,4, 5,6-tetrahydro-2H-pyran-4-ylamino) benzoic acid dihydrochloride NMR (200MHz, DMSO-d6, 8) : 1. 5-2. 2 (5H, m), 2.1-3. 0 (3H, m), 3.0-3. 8 (8H, m), 4.66 (1H, m), 5.05 (1H, m), 6.8-7. 2 (6H, m), 7.2-7. 6 (4H, m), 8.90 (1H, m), 9.25 (1H, m) MS (m/z): 537 (M+1) (10) 2-Amino-5-[[(7S)-7-[[(2R)-2-(4-chlorophenyl)-2- hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2- naphthalenyl] oxy] benzoic acid dihydrochloride NMR (200MHz, DMSO-d6, 5) : 1.8-2. 4 (4H, m), 2.7-3. 8 (5H, m), 5.07 (1H, m), 6.5-7. 5 (9H, m), 8.97 (1H, m), 9.51 (1H, m) MS (m/z): 451 (M-1) (11) 3-[[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2-hydroxyethyl]- amino] -5,6, 7, 8-tetrahydro-2-naphthalenyl] oxy]-2- methylbenzoic acid hydrochloride NMR (200MHz, DMSO-d6, 8) : 1.8-2. 3 (3H, m), 2. 5-3.8 (6H,

m), 2.49 (3H, s), 5.05 (1H, m), 6.2-7. 5 (10H, m) MS (m/z): 450 (M-1) (12) 2-(Acetylamino)-5-[[(7S)-7-[[(2R)-2-(6-chloro-3- pyridyl)-2-hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2- naphthalenyl] oxy] benzoic acid hydrochloride NMR (200MHz, DMSO-d6, 5) : 1.8-2. 3 (3H, m), 2.5-3. 8 (6H, m), 2.11 (3H, s), 5.02 (1H, m), 6.2-7. 5 (10H, m) MS (m/z): 493 (M-1) (13) 6-[4-[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2-hydroxyethyl]- amino] -5,6, 7, 8-tetrahydro-2-naphthalenyl] phenoxy]- nicotinic acid hydrochloride NMR (200MHz, DMSO-d6, 8) : 1.8-2. 2 (4H, m), 2.6-3. 5 (5H, m), 5.10 (1H, m), 7.0-7. 7 (12H, m), 8.28 (1H, dd, J=2.4, 8.6Hz), 8.67 (1H, d, J=2.4Hz), 9.04 (1H, s), 9.52 (1H, s) MS (m/z): 513 (M-1) (14) 2-[4-[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2-hydroxyethyl]- amino] -5,6, 7, 8-tetrahydro-2-naphthalenyl] phenoxy]- nicotinic acid dihydrochloride NMR (200MHz, DMSO-d6, 5) : 1.8-2. 2 (4H, m), 2.6-3. 5 (5H, m), 5.07 (1H, m), 7.0-7. 7 (12H, m), 8.2 (2H, m), 9.00 (1H, s), 9.33 (1H, s) MS (m/z): 513 (M-1) (15) 4- [4- [ [ (7S)-7- [ [ (2R)-2- (3-Chlorophenyl)-2- hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2-naphthalenyl] - oxy] phenoxy] benzoic acid hydrochloride NMR (200MHz, DMSO-d6, 8) : 1.8-2. 2 (4H, m), 2.6-3. 5 (5H, m), 5.03 (1H, m), 6.35 (1H, m), 6.8-7. 5 (12H, m), 7.94 (2H, d, J=8.4Hz) MS (m/z): 528 (M-1)

(16) 2- [4- [ [ (7S)-7- [ [ (2R)-2- (3-Chlorophenyl)-2- hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2-naphthalenyl] - oxy] phenoxy] benzoic acid hydrochloride NMR (200MHz, DMSO-d6, 6) : 1.8-2. 2 (4H, m), 2.6-3. 5 (5H, m), 5.04 (1H, m), 6.7-7. 8 (15H, m) MS (m/z): 530 (M+1) (17) 4- [3- [ [ (7S)-7- [ [ (2R)-2- (3-Chlorophenyl)-2- hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2-naphthalenyl] - oxy] phenyl] benzoic acid hydrochloride NMR (200MHz, DMSO-d6, 8) : 1.8-2. 2 (4H, m), 2.6-3. 5 (5H, m), 5.04 (1H, m), 6.7-7. 5 (11H, m), 7.77 (2H, d, J=8.4Hz), 8.00 (2H, d, J=8.4Hz) MS (m/z): 512 (M-1) (18) 4-[3-[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2- hydroxyethyl] amino] -5, 6,7, 8-tetrahydro-2-naphthalenyl] - oxy] phenoxy] benzoic acid hydrochloride NMR (200MHz, DMSO-d6, 5) : 1.8-2. 2 (4H, m), 2.6-3. 5 (5H, m), 5.05 (1H, m), 6.7-7. 7 (13H, m), 7.94 (2H, d, J=8.4Hz) MS (m/z): 528 (M-1) (19) 2-[3-[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2- hydroxyethyl] amino] -5, 6,7, 8-tetrahydro-2-naphthalenyl]- oxy] phenoxy] benzoic acid hydrochloride NMR (200MHz, DMSO-d6, 6) : 1.8-2. 2 (4H, m), 2.6-3. 5 (5H, m), 5.05 (1H, m), 6.5-7. 8 (13H, m), 7.81 (2H, d, J=8. 4Hz) MS (m/z): 530 (M+1) 20 3-[3-[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2- hydroxyethyl] amino-5, 6,7, 8-tetrahydro-2-naphthalenyl] - oxy] phenyl] benzoic acid hydrochloride NMR (200MHz, DMSO-d6, 5) : 1.8-2. 2 (4H, m), 2.6-3. 5 (5H,

m), 5.04 (1H, m), 6.7-7. 8 (12H, m), 7.92 (2H, m), 8.12 (1H, s) MS (m/z): 514 (M+1) (21) 3-[[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2-hydroxyethyl]- amino] -5,6, 7, 8-tetrahydro-2-naphthalenyl] oxy]-5- phenoxybenzoic acid hydrochloride MS (m/z): 530 (M+1) (22) 3-[[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2-hydroxyethyl]- amino] -5,6, 7,8-tetrahydro-2-naphthalenyl] oxy]-5- anilinobenzoic acid dihydrochloride MS (m/z): 529 (M+1) (23) $3-[[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2-hydroxyethyl]- amino] -5,6, 7, 8-tetrahydro-2-naphthalenyl] oxy]-5- propoxybenzoic acid hydrochloride MS (m/z): 496 (M+1) (24) 3-[[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2-hydroxyethyl]- amino] -5,6, 7, 8-tetrahydro-2-naphthalenyl] oxy]-5- (propylamino) benzoic acid dihydrochloride MS (m/z): 495 (M+1) (25) 3-[[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2-hydroxyethyl]- amino] -5,6, 7, 8-tetrahydro-2-naphthalenyl] oxy]-6- propoxybenzoic acid hydrochloride MS (m/z): 496 (M+1) Example 66 The following compounds were obtained according to a similar manner to that of Example 33 following a similar manner to that of Example 37.

(1) 3-Amino-5-[[(7S)-7-[[(2R)-2-(6-chloro-3-pyridyl)-2-

hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2-naphthalenyl] - oxy] benzoic acid dihydrochloride NMR (200MHz, DMSO-d6, 8) : 1.8-2. 0 (1H, m), 2.11 (3H, s), 3.0-4. 0 (5H, m), 5. 15 (1H, m), 6. 5-7. 0 (4H, m), 7.0-7. 2 (1H, m), 7.43 (1H, s), 7.57 (2H, d, J=8.4Hz), 7.93 (1H, d, J=8.4Hz), 8.48 (1H, m), 9.01 (1H, m), 9. 36 (1H, m) MS (m/z): 451 (M-1) (2) 3- [ [ (7S)-7- [ [ (2R)-2- (6-Chloro-3-pyridyl)-2- hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2-naphthalenyl] - oxy]-5- (dimethylamino) benzoic acid dihydrochloride NMR (200MHz, DMSO-d6, 8) : 1. 8-2. 0 (1H, m), 2.96 (6H, s), 3. 0-4. 0 (5H, m), 5. 15 (1H, m), 6. 5-7. 3 (6H, m), 7.56 (1H, d, J=8.4Hz), 7.91 (1H, m), 8. 46 (1H, m), 9.01 (1H, m), 9. 58 (1H, m) MS (m/z): 482 (M+1) (3) 3- [ [ (7S)-7- [ [ (2R)-2- (6-Chloro-3-pyridyl)-2- hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2-naphthalenyl] - oxy]-5- (3, 4,5, 6-tetrahydro-2H-pyran-4-ylamino) benzoic acid dihydrochloride NMR (200MHz, DMSO-d6, 5) : 1.8-2. 0 (1H, m), 3.0-4. 0 (5H, m), 5. 05 (1H, m), 6.5-7. 3 (6H, m), 7. 57 (1H, d, J=8.4Hz), 7.91 (1H, m), 8. 46 (1H, m), 9.01 (1H, m), 9.58 (1H, m) MS (m/z): 536 (M-1) (4) 3- [ [ (7S)-7- [ [ (2R)-2- (6-Chloro-3-pyridyl)-2- hydroxyethyl] amino-5, 6,7, 8-tetrahydro-2-naphthalenyl] - oxy]-5-[(methoxycarbonyl) amino] benzoic acid hydrochloride NMR (200MHz, DMSO-d6, 8) : 1.8-2. 0 (1H, m), 3.0-4. 0 (5H, m), 3. 40 (3H, s), 5. 15 (1H, m), 6.4-7. 3 (4H, m), 7.4-8. 0 (4H, m), 8.48 (1H, m), 9.02 (1H, m), 9.41

(1H, m) MS (m/z): 510 (M-1) (5) 3- [ [ (7S)-7- [ [ (2R)-2- (6-Chloro-3-pyridyl)-2- hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2-naphthalenyl] - oxy]-5- (2-furoylamino) benzoic acid hydrochloride NMR (200MHz, DMSO-d6, 5) : 1.8-2. 0 (1H, m), 3.0-4. 0 (5H, m), 5.12 (1H, m), 6. 79 (1H, m), 6.7-7. 0 (2H, m), 7.1-7. 2 (2H, m), 7.39 (1H, d, J=3.4Hz), 7.57 (1H, d, J=8.4Hz), 7.80 (1H, m), 7.8-8. 0 (2H, m), 8.11 (1H, m), 8.47 (1H, m), 9.02 (1H, m), 9.30 (1H, m) MS (m/z): 546 (M-1) (6) 3- (Benzoylamino)-5- [ [ (7S)-7- [ [ (2R)-2- (6-chloro-3- pyridyl)-2-hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2- naphthalenyl] oxy] benzoic acid hydrochloride NMR (200MHz, DMSO-d6, 8) : 1.8-2. 0 (1H, m), 3.0-4. 0 (5H, m), 5.14 (1H, m), 6.5-7. 2 (4H, m), 7.4-8. 0 (8H, m), 8.20 (1H, m), 8.43 (1H, m), 9.01 (1H, m), 9.39 (1H, m) MS (m/z): 559 (M+1) (7) 3-[[(Benzyloxy)carbonyl]amino]-5-[[(7S)-7-[[(2R)-2-(6- chloro-3-pyridyl) -2-hydroxyethyl] amino] -5, 6,7, 8- tetrahydro-2-naphthalenyl] oxy] benzoic acid hydrochloride NMR (200MHz, DMSO-d6, 6) : 1.8-2. 0 (1H, m), 3.0-4. 0 (5H, m), 5.14 (1H, m), 5.15 (2H, s), 6.3-7. 2 (5H, m), 7.2-7. 7 (5H, m), 7.8-8. 0 (2H, m), 8.48 (1H, m), 8.97 (1H, m), 9.27 (1H, m) MS (m/z): 588 (M+1) (8) 3- (Dimethylamino)-5- [ [ (7S)-7- [ [ (2R)-2-hydroxy-2- (3- pyridyl) ethyl] amino]-5, 6,7, 8-tetrahydro-2- naphthalenyl] oxy] benzoic acid trihydrochloride

NMR (200MHz, DMSO-d6, 8) : 1.8-2. 0 (1H, m), 2. 94 (6H, m), 3.0-4. 0 (5H, m), 5.37 (1H, m), 6.5-7. 2 (6H, m), 7.9-8. 1 (1H, m), 8.6-8. 7 (1H, m), 8.8-9. 1 (3H, m), 9.20 (1H, m), 9.50 (1H, m) MS (m/z): 446 (M-1) (9) 3-[[(7S)-7-[[(2R)-2-Hydroxy-2-(3-pyridyl)ethy]amino]- 5, 6,7, 8-tetrahydro-2-naphthalenyl] oxy]-5- (3, 4,5, 6- tetrahydro-2H-pyran-4-ylamino) benzoic acid trihydrochloride NMR (200MHz, DMSO-d6, 5) : 1.8-2. 0 (1H, m), 3.0-4. 0 (5H m), 5.37 (1H, m), 6.8-7. 4 (6H, m), 7.9-8. 1 (1H, m), 8.49 (1H, d, J=8.4Hz), 8.8-9. 1 (3H, m), 9.19 (1H, m), 9. 41 (1H, m) MS (m/z) : 502 (M-1) (10) 3-[[(7S)-7-[[(2R)-2-Hydroxy-2-(3-pyridyl) ethyl] amino]- 5,6, 7,8-tetrahydro-2-naphthalenyl] oxy] -5- [ (methoxycarbonyl) amino) benzoic acid dihydrochloride NMR (200MHz, DMSO-d6, 6) : 1.8-2. 0 (1H, m), 3.0-4. 0 (5H m), 3.60 (3H, s), 5. 21 (1H, m), 6.8-7. 4 (4H, m), 7.4-7. 8 (2H, m), 8.1-8. 3 (1H, m), 8.6-8. 9 (2H, m) MS (m/z): 478 (M+1) (11) 3- (2-Furoylamino)-5- [ [ (7S)-7- [ [ (2R)-2-hydroxy-2- (3- pyridyl) ethyl] amino]-5, 6,7, 8-tetrahydro-2- naphthalenyl] oxy] benzoic acid dihydrochloride NMR (200MHz, DMSO-d6, 6) : 1.8-2. 0 (1H, m), 3.0-4. 0 (5H m), 5.25 (1H, m), 6.7-7. 2 (4H, m), 7.71 (1H, m), 7.8-8. 0 (1H, m), 8. 09 (1H, s), 8.35 (1H, d, J=8.4Hz), 8.7-9. 0 (2H, m), 9.1 (1H, m), 9.46 (1H, m), 10.01 (1H, s) MS (m/z): 524 (M+1) (12) 3- (Benzoylamino)-5- [ [ (7S)-7- [ [ (2R)-2-hydroxy-2- (3-

pyridyl) ethyl] amino]-5, 6,7, 8-tetrahydro-2- naphthalenyl] oxy] benzoic acid dihydrochloride NMR (200MHz, DMSO-d6, b) : 1.8-2. 0 (1H, m), 3.0-4. 0 (5H m), 5. 29 (1H, m), 6.7-7. 2 (4H, m), 7.5-7. 7 (3H, m), 7. 8-8.0 (4H, m), 8.18 (1H, s), 8.43 (1H, d, J=8.4Hz), 9.15 (1H, m), 9.36 (1H, m), 10.51 (1H, s) MS (m/z): 522 (M-1) (13) 3-Amino-5-[[(7S)-7-[[(2R)-2-hydroxy-2-(3-pyridyl)- ethyl] amino]-5, 6,7, 8-tetrahydro-2-naphthalenyl] oxy]- benzoic acid trihydrochloride NMR (200MHz, DMSO-d6, 5) : 1.8-2. 0 (1H, m), 3.0-4. 0 (5H m), 5.32 (1H, m), 6.5-7. 2 (6H, m), 8.0-8. 2 (1H, m), 8.6-8. 7 (1H, d, J=8.4Hz), 8.85 (1H, d, J=8.4Hz), 8.93 (1H, m), 9.20 (1H, m), 9.45 (1H, m) MS (m/z): 420 (M+1) (14) 3-Amino-5- [ [ (7S)-7- [ [ (2R)-2- (4-chlorophenyl)-2- hydroxyethyl] amino-5, 6,7, 8-tetrahydro-2- naphthalenyl] oxy] benzoic acid dihydrochloride NMR (200MHz, DMSO-d6, 8) : 1. 8-2. 3 (3H, m), 2.5-3. 8 (6H, m), 5.02 (1H, m), 6.2-7. 4 (10H, m), 8.87 (1H, m), 9.19 (1H, m) MS (m/z): 452 (M-1) (15) 3-[[(7S)-7-[[(2R)-2-(4-Chlorophenyl)-2-hydroxyethyl]- amino-5, 6,7, 8-tetrahydro-2-naphthalenyl] oxy]-5- (2- furoylamino) benzoic acid hydrochloride NMR (200MHz, DMSO-d6, 8) : 1.8-2. 0 (2H, m), 2. 1-2. 3 (2H, m), 2.5-3. 6 (5H, m), 5.05 (1H, m), 6.30 (1H, m), 6.69 (1H, m), 6.8-7. 2 (4H, m), 7.3-7. 6 (4H, m), 7.80 (1H, s), 7.94 (1H, s), 8.16 (1H, s), 8.92 (1H, m), 9.33 (1H, m) MS (m/z): 547 (M-1)

(16) 3-[[(7S)-7-[[(2R)-2-(4-Chlorophenyl)-2-hydroxyethyl]- amino-5, 6,7, 8-tetrahydro-2-naphthalenyl] oxy]-5- [ (methoxycarbonyl) amino] benzoic acid hydrochloride NMR (200MHz, DMSO-d6, 5) : 1.8-2. 2 (4H, m), 2.8-3. 6 (5H, m), 3. 66 (3H, s), 5.02 (1H, m), 6.4-7. 7 (9H, m), 7.79 (1H, s), 8.87 (1H, m), 9.22 (1H, m) MS (m/z): 511 (M+1) (17) 3- (Benzoylamino)-5- [ [ (7S)-7- [ [ (2R)-2- (4-chlorophenyl)- 2-hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2- naphthalenyl] oxy] benzoic acid hydrochloride NMR (200MHz, DMSO-d6, 5) : 1.8-2. 2 (4H, m), 2.6-3. 5 (5H, m), 5.05 (1H, m), 6.3-7. 7 (11H, m), 7.83 (1H, s), 7.94 (1H, d, J=8.4Hz), 9.19 (1H, m) MS (m/z): 557 (M+1) Example 67 The following compounds were obtained according to a similar manner to that of Preparation 4 following a similar manner to that of Example 37.

(1) 4-[[(7S)-7-[[(2R)-2-(4-Chlorophenyl)-2-hydroxyethyl]- amino] -5,6, 7, 8-tetrahydro-2-naphthalenyl]-2- (cyclohexyloxy) benzoic acid hydrochloride NMR (200MHz, DMSO-d6, 5) : 1.2-3. 3 (19H, m), 4.63 (1H, m), 5.04 (1H, m), 6.5-7. 2 (3H, m), 7.2-7. 8 (8H, m), 8.95 (1H, m), 9.19 (1H, m) MS (m/z): 521 (M+1) (2) 4-[[(7S)-7-[[(2R)-2-(4-Chlorophenyl)-2-hydroxyethyl]- amino] -5,6, 7,8-tetrahydro-2-naphthalenyl]-2- (cyclohexyloxy) benzoic acid hydrochloride NMR (200MHz, DMSO-d6, 8) : 1. 5-2. 4 (13H, m), 2.7-3. 5 (6H, m), 4.65 (1H, m), 5.05 (1H, m), 7.0-7. 7 (10H, m),

8.25 (1H, m), 8.95 (1H, m), 9.20 (1H, m) MS (m/z): 520 (M+1) (3) 4- [ (7S)-7- [ [ (2R)-2- (4-Chlorophenyl)-2-hydroxyethyl]- amino] -5,6, 7,8-tetrahydro-2-naphthalenyl]-2- isopropoxybenzoic acid hydrochloride NMR (200MHz, DMSO-d6, 8) : 1.25 (6H, d, J=6. 0Hz), 1.5- 3.5 (10H, m), 4.77 (1H, m), 5.02 (1H, m), 6.2-7. 0 (3H, m), 7.1-7. 6 (5H, m), 7.68 (2H, d, J=8.4Hz) MS (m/z): 480 (M+1) (4) 2- (Cyclohexyloxy)-4- [ (7S)-7- [ [ (2R)-2-hydroxy-2- phenylethyl] amino]-5, 6,7, 8-tetrahydro-2-naphthalenyl] - benzoic acid hydrochloride NMR (200MHz, DMSO-d6, 5) : 1.5-2. 4 (13H, m), 2.7-3. 5 (6H, m), 4.63 (1H, m), 5.04 (1H, m), 7.0-7. 6 (9H, m), 7.69 (2H, d, J=8.4Hz), 8.25 (1H, m) MS (m/z): 486 (M+1) (5) 4-[(7S)-7-[[(2R)-2-Hydroxy-2-phenylethyl]amino]- 5,6, 7, 8-tetrahydro-2-naphthalenyl]-2-isopropoxybenzoic acid hydrochloride NMR (200MHz, DMSO-d6, 5) : 1.26 (6H, d, J=6. 0Hz), 1.5- 3.5 (1OH, m), 4. 80 (1H, m), 5.07 (1H, m), 6. 26 (1H, m), 7.1-7. 6 (8H, m), 7.68 (2H, d, J=8.4Hz) MS (m/z): 446 (M+1) (6) 4-[4-[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2-hydroxethyl]- amino] -5,6, 7, 8-tetrahydro-2-naphthalenyl] phenoxy]- benzoic acid hydrochloride NMR (200MHz, DMSO-d6, 5) : 1.8-2. 2 (4H, m), 2.6-3. 5 (5H, m), 5.05 (1H, m), 6. 36 (1H, m), 7.0-7. 6 (11H, m), 7.69 (2H, d, J=8.4Hz), 7.96 (2H, d, J=8.4Hz) MS (m/z): 512 (M-1)

(7) 3-[4-[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2-hydroxyethyl]- amino]-5, 6,7, 8-tetrahydro-2-naphthalenyl] phenoxy]- benzoic acid hydrochloride NMR (200MHz, DMSO-d6, 6) : 1.8-2. 2 (4H, m), 2.6-3. 5 (5H, m), 5.05 (1H, m), 6.36 (1H, m), 7.0-7. 8 (15H, m) MS (m/z): 512 (M-1) (8) 2-[4-[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2-hydroxyethyl]- amino] -5,6, 7, 8-tetrahydro-2-naphthalenyl] phenoxy]- benzoic acid hydrochloride NMR (200MHz, DMSO-d6, 8) : 1.8-2. 2 (4H, m), 2.6-3. 5 (5H, m), 5. 10 (1H, m), 6.36 (1H, m), 6.8-8. 0 (15H, m) MS (m/z): 512 (M-1) (9) 3-[3-[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2-hydroxyethyl]- amino] -5,6, 7, 8-tetrahydro-2-naphthalenyl] phenoxy]- benzoic acid hydrochloride NMR (200MHz, DMSO-d6, b) : 1.8-2. 2 (4H, m), 2. 6-3. 5 (5H, m), 5.10 (1H, m), 6. 36 (1H, m), 6.8-8. 0 (15H, m) MS (m/z): 512 (M-1) (10) 4-[3-[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2-hydroxyethyl]- amino]-5, 6,7, 8-tetrahydro-2-naphthalenyl] phenoxy]- benzoic acid hydrochloride NMR (200MHz, DMSO-d6, 5) : 1.8-2. 2 (4H, m), 2.6-3. 5 (5H, m), 5.10 (1H, m), 6.36 (1H, m), 6.8-8. 0 (15H, m) MS (m/z): 512 (M-1) (11) 2-[3-[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2-hydroxyethyl]- amino] -5,6, 7, 8-tetrahydro-2-naphthalenyl] phenoxy]- benzoic acid hydrochloride NMR (200MHz, DMSO-d6, 5) : 1.8-2. 2 (4H, m), 2.6-3. 5 (5H, m), 5. 03 (1H, m), 6.37 (1H, m), 6.8-8. 0 (15H, m) MS (m/z): 512 (M-1)

(12) 4- [ (7S)-7- [ [ (2R)-2-Hydroxy-2- (3-pyridyl) ethyl] amino]- 5,6, 7, 8-tetrahydro-2-naphthalenyl]-2-phenoxybenzoic acid dihydrochloride MS (m/z): 481 (M+1) (13) 4-[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2-hydroxyethyl]- amino] -5,6, 7, 8-tetrahydro-2-naphthalenyl]-2- propoxybenzoic acid hydrochloride MS (m/z): 480 (M+1) (14) 4-[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2-hydroxyethyl]- amino] -5,6, 7, 8-tetrahydro-2-naphthalenyl]-2- phenoxybenzoic acid hydrochloride MS (m/z): 514 (M+1) (15) 4-[(7S)-7-[[(2R)-2-Phenyl-2-hydroxyethyl]amino]- 5,6, 7, 8-tetrahydro-2-naphthalenyl]-2-propoxybenzoic acid hydrochloride MS (m/z): 446 (M+1) (16) 4-[(7S)-7-[[(2R)-2-Phenyl-2-hydroxyethyl]amino]- 5,6, 7, 8-tetrahydro-2-naphthalenyl]-2-phenoxybenzoic acid hydrochloride MS' (m/z): 480 (M+1) Example 68 The following compounds were obtained according to a similar manner to that of Example 17 following a similar manner to that of Example 19.

(1) Sodium 4-[(7S)-7-[[(2R)-2-(3, 5-dichlorophenyl) -2- hydroxyethyl] amino-5, 6,7, 8-tetrahydro-2-naphthalenyl] - benzoate NMR (200MHz, DMSO-d6, 8) : 1.8-3. 0 (9H, m), 4.66 (1H, m), 7.0-7. 2 (1H, m), 7.2-7. 7 (7H, m), 7.8-8. 0 (2H, m)

MS (m/z): 456 (M+l) (2) Sodium 4- [ (7S)-7- [ [ (2R)-2- (3, 4-dimethylphenyl) -2- hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2-naphthalenyl] - benzoate NMR (200MHz, DMSO-d6, 8) : 1.8-3. 0 (9H, m), 2. 18 (3H, s), 2.20 (3H, s), 4.54 (1H, m), 7.0-7. 2 (4H, m), 7.2- 7.5 (4H, m), 7.8-8. 0 (2H, m) MS (m/z): 416 (M+1) (3) Sodium 4-[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2- hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2-naphthalenyl] - benzoate NMR (200MHz, DMSO-d6, 5) : 1.8-3. 0 (9H, m), 4.97 (1H, m), 7.0-7. 7 (9H, m), 7.8-8. 0 (2H, m) MS (m/z): 420 (M+1) (4) Sodium 4- [ (7S)-7- [ [ (2R)-2- (4-trifluorophenyl)-2- hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2-naphthalenyl] - benzoate NMR (200MHz, DMSO-d6, 6) : 1.8-3. 2 (9H, m), 4.73 (1H, m), 7.11 (1H, d, J=8. 6Hz), 7. 3-7.8 (8H, m), 7. 88 (2H, d, J=8.2Hz) MS (m/z): 456 (M+1) (5) Sodium 4- [ (7S)-7- [ [ (2R)-2- (4-cyanophenyl)-2- hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2-naphthalenyl] - benzoate NMR (200MHz, DMSO-d6, b) : 1.4-3. 0 (9H, m), 4.72 (1H, m), 7. 12 (1H, d, J=8.2Hz), 7.2-7. 6 (6H, m), 8.82 (2H, d, J=8.4Hz), 7.92 (2H, d, J=8.4Hz) MS (m/z): 413 (M+l) (6) Sodium 4- [ (7S)-7- [ [ (2R)-2- (3, 4-dichlorophenyl) -2- hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2-naphthalenyl] -

benzoate NMR (200MHz, DMSO-d6, 8) : 1.8-3. 0 (9H, m), 4.66 (1H, m), 7.0-7. 2 (1H, m), 7.2-7. 9 (9H, m) MS (m/z): 472 (M+1) (7) Sodium 4- [ (7S)-7- [ [ (2R)-2- (3-fluoro-4-chlorophenyl)-2- hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2-naphthalenyl] - benzoate NMR (200MHz, DMSO-d6, 8) : 1.5-3. 0 (9H, m), 4.68 (1H, m), 7.0-7. 5 (8H, m), 7. 89 (2H, d, J=8.4Hz) MS (m/z) : 483 (M-1) (8) Sodium 4- [ (7S)-7- [ [ (2R)-2- (3-trifluoro-4-chlorophenyl)- 2-hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2- naphthalenyl] benzoate NMR (200MHz, DMSO-d6, 8) : 1.8-3. 0 (9H, m), 4.66 (1H, m), 7.0-7. 2 (1H, m), 7. 2-8. 0 (9H, m) MS (m/z): 488 (M-1) (9) Sodium 4- [ (7S)-7- [ [ (2R)-2- (4-isopropylphenyl)-2- hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2-naphthalenyl] - benzoate NMR (200MHz, DMSO-d6, 8) : 1.22 (6H, d, J=6.8Hz), 1.8- 3.0 (10H, m), 4.66 (1H, m), 7.0-7. 8 (9H, m), 7.8- 8.0 (2H, m) MS (m/z): 430 (M+1) Example 69 To a. solution of 3- [ (7S)-7- [N- [ (2R)-2- (3-chlorophenyl)- 2-hydroxyethyl]-N- (tert-butoxycarbonyl) amino] -5,6, 7, 8- tetrahydro-2-naphthalenyl] benzoic acid (100 mg) in N, N- dimethylformamide (10 ml) were added methylsulfonamide (50 mg) and 1- [3- (dimethylamino) propyl]-3-ethylcarbodiimide hydrochloride (100 mg), and dimethylaminopyridine (60 mg) at room temperature. After stirred for 24 hours, the mixture

was diluted with a mixture of ethyl acetate and water and the organic layer was washed with brine, dried over magnesium sulfate. The resulting mixture was filtrated and the mother layer was evaporated under pressure. The residue was purified by column chromatography on silica gel to give sulfonamido derivative. The obtained sulfonamide derivative (60 mg) was diluted with 6N hydrogen chloride in dioxane (10 ml) and the mixture was allowed to keep at room temperature for 4 hours. The mixture was evaporated under reduced pressure and the obtained solid was washed with ether to give N- [4- [ (7S)-7- [ [ (2R)-2- (3-chlorophenyl)-2- hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2- naphthalenyl] benzoyl] methanesulfonamide hydrochloride (33 mg).

NMR (200MHz, DMSO-d6, 8) : 1. 2-3. 3 (9H, m), 3.44 (3H, m), 5.04 (1H, m), 6.33 (1H, m), 7.2-7. 6 (7H, m), 7. 79 (2H, d, J=8.4Hz), 8.05 (2H, d, J=8.4Hz) (+) ESI-MS (m/z): 497 (M-1) Example 70 The following compounds were obtained according to a similar manner to that of Example 69.

(1) N-[4-[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2-hydroxyethyl]- amino] -5,6, 7, 8-tetrahydro-2-naphthalenyl] benzoyl]- benzenesulfonamide hydrochloride NMR (200MHz, DMSO-d6, 8) : 1.5-3. 3 (9H, m), 3.44 (3H, m), 5.05 (1H, m), 6.38 (1H, m), 7.2-8. 1 (14H, m), 8.95 (1H, m), 9.20 (1H, m) MS (m/z): 559 (M-1) (2) N- [4- [ (7S)-7- [ [ (2R)-2- (3-Chlorophenyl)-2-hydroxyethyl]- amino] -5,6, 7, 8-tetrahydro-2-naphthalenyl] benzoyl]- benzylsulfonamide hydrochloride NMR (200MHz, DMSO-d6, 8) : 1.5-3. 3 (9H, m), 3.44 (3H, m),

4.87 (2H, s), 5.08 (1H, m), 6.40 (1H, m), 7.2-7. 6 (11H, m), 7.78 (2H, d, J=8.4Hz), 7.98 (2H, d, J=8.4Hz), 8.96 (1H, m), 9.24 (1H, m) MS (m/z) : 573 (M-1) Example 71 The following compounds were obtained according to a similar manner to that of Example 39 following a similar manner to that of Example 37.

(1) 3-Chloro-2- [ [ (7S)-7- [ [ (2R)-2- (3-chlorophenyl)-2- hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2- naphthalenyl] oxy] isonicotinic acid dihydrochloride NMR (200MHz, DMSO-d6, 8) : 1.8-2. 0 (1H, m), 2.1-3. 0 (3H, m), 3.0-3. 8 (6H, m), 5.05 (1H, m), 6.3-7. 0 (4H, m), 7.3-7. 6 (4H, m), 8. 9 (1H, m), 9.2 (1H, s), 9.27 (1H, m) MS (m/z): 471 (M-1) (2) 5-[[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2-hydroxyethyl]- amino] -5,6, 7, 8-tetrahydro-2-naphthalenyl] oxy]-2- pyrazinecarboxylic acid hydrochloride NMR (200MHz, DMSO-d6, 8) : 1.8-2. 0 (1H, m), 2.1-3. 0 (3H, m), 3.0-3. 8 (6H, m), 5.09 (1H, m), 6.9-7. 1 (2H, m), 7.20 (1H, d, J=8.4Hz), 7.3-7. 5 (4H, m), 8.61 (1H, s), 8. 73 (1H, s) MS (m/z): 438 (M-1) (3) 3-Chloro-2-[[(7S)-7-[[(2R)-2-(4-chlorophenyl)-2- hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2- naphthalenyl] oxy] isonicotinic acid hydrochloride NMR (200MHz, DMSO-d6, 8) : 1.8-2. 0 (1H, m), 2.1-3. 0 (3H, m), 3.0-3. 8 (6H, m), 5.10 (1H, m), 6.8-7. 4 (8H, m), 8. 29 (1H, d, J=8.4Hz), 9. 06 (1H, m), 9. 59 (1H, m) MS (m/z): 471 (M-1)

(4) 5-Chloro-6- [ [ (7S)-7- [ [ (2R)-2- (3-chlorophenyl)-2- hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2- naphthalenyl] oxy] nicotinic acid hydrochloride NMR (200MHz, DMSO-d6, 6) : 1.8-2. 0 (1H, m), 2.1-3. 0 (3H, m), 3.0-3. 8 (6H, m), 5.09 (1H, m), 6.38 (12H, m), 6.8-7. 5 (7H, m), 8.35 (1H, s), 8.54 (1H, s), 9.02 (1H, m), 9.57 (1H, m) MS (m/z): 471 (M-1) (5) 6-[[(7S)-7-[[(2R)-2-(4-Chlorophenyl)-2-hydroxyethyl]- amino] -5,6, 7, 8-tetrahydro-2-naphthalenyl] oxy] nicotinic acid hydrochloride NMR (200MHz, DMSO-d, 8) : 1.8-2. 3 (3H, m), 2.5-3. 8 (6H, m), 5.05 (1H, m), 6.2-7. 5 (8H, m), 8.27 (1H, m), 8.63 (1H, m), 8.95 (1H, m), 9.34 (1H, m) MS (m/z): 437 (M-1) (6) 4-[6-[[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2- hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2-naphthalenyl] - oxy]-3-pyridyl] benzoic acid hydrochloride NMR (200MHz, DMSO-d6, 5) : 1.8-2. 2 (4H, m), 2.6-3. 5 (5H, m), 5.07 (1H, m), 6.8-7. 3 (4H, m), 7.3-7. 5 (3H, m), 7.81 (2H, d, J=8. 4Hz), 8.02 (2H, d, J=8.4Hz), 8.1- 8.3 (1H, m), 8.51 (1H, dd, J=2.4Hz) MS (m/z): 513 (M-1) (7) 3-[6-[[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2- hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2-naphthalenyl] - oxy]-3-pyridyl] benzoic acid hydrochloride NMR (200MHz, DMSO-d6, 8) : 1. 8-2. 2 (4H, m), 2. 6-3. 5 (5H, m), 5.10 (1H, m), 6.8-7. 6 (9H, m), 7.8-8. 0 (2H, m), 8.0-8. 2 (2H, m), 8.47 (1H, m) MS (m/z): 513 (M-1) Example 72

Under nitrogen at room temperature, to a mixture of bis (dibenzylideneacetone) palladium (O) (103 mg) and bis (2- diphenylphosphinophenyl) ether (107 mg) was added toluene (20 ml). After being stirred at the same temperature for 15 minutes, (7S)-7- [N- (tert-butoxycarbonyl)-N- [ (2R)-2- (3- chlorophenyl)-2-hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2- naphthalenyl trifluoromethanesulfonate (1 g), potassium tert-butoxide (0.3 g) and 3-mercaptobenzoic acid (0.3 ml) were added, and the mixture was stirred at 80°C for 3 hours.

The resulting mixture was poured into water and the aqueous mixture was extracted with ethyl acetate. The organic layer was washed successively with water and brine, dried over anhydrous magnesium sulfate and evaporated under reduced pressure. The residue was purified by column chromatography on silica gel to give sulfide derivative. The obtained sulfide derivative (70 mg) was diluted with 6N hydrogen chloride in 1,4-dioxane (10 ml) and the mixture was allowed to keep at room temperature for 4 hours. The mixture was evaporated under reduced pressure and the obtained solid was washed with ether to give 3- [ [ (7S)-7- [ [ (2R)-2- (3- chlorophenyl)-2-hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2- naphthalenyl] thio] benzoic acid hydrochloride (51 mg).

NMR (200MHz, DMSO-d6, 8) : 1.8-2. 2 (4H, m), 2.6-3. 5 (5H, m), 5.02 (1H, m), 6.5-7. 8 (11H, m) MS (m/z): 454 (M+1) Example 73 Under nitrogen at room temperature, to a mixture of bis (dibenzylideneacetone) palladium (O) (103 mg) and bis (2- diphenylphosphinophenyl) ether (107 mg) was added toluene (20 ml). After being stirred at the same temperature for 15 minutes, (7S)-7- [N- (tert-butoxycarbonyl)-N- [ (2R)-2- (3- chlorophenyl)-2-hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2- naphthalenyl trifluoromethanesulfonate (1 g), potassium tert-butoxide (0.3 g) and 3-mercaptobenzoic acid (0.3 ml)

were added, and the mixture was stirred at 80°C for 3 hours.

The resulting mixture was poured into water and the aqueous mixture was extracted with ethyl acetate. The organic layer was washed successively with water and brine, dried over anhydrous magnesium sulfate and evaporated under reduced pressure. The residue was purified by column chromatography on silica gel to give sulfide derivative. Under nitrogen at 5°C, to a solution of the obtained sulfide (300 mg) in dichloromethane (10 ml) was added m-chloroperoxybenzoic acid (150 mg), and the mixture was stirred at room temperature for 3.5 hours. The resulting mixture was poured into aqueous sodium thiosulfate and the aqueous mixture was extracted with ethyl acetate. The organic layer was washed successively with saturated aqueous sodium bicarbonate twice and brine, dried over anhydrous magnesium sulfate, evaporated under reduced pressure and dried in vacuo to give the sulfoxide derivative. The obtained sulfoxide derivative (100 mg) was diluted with 6N hydrogen chloride in 1,4- dioxane (10 ml) and the mixture was allowed to keep at room temperature for 4 hours. The mixture was evaporated under reduced pressure and the obtained solid was washed with ether to give 3- [ [ (7S)-7- [ [ (2R)-2- (3-chlorophenyl)-2- hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2-naphthalenyl]- sulfonyl] benzoic acid hydrochloride (700 mg).

NMR (200MHz, DMSO-d6, 8) : 1.8-2. 2 (4H, m), 2.6-3. 5 (5H, m), 5.02 (1H, m), 6.38 (1H, m), 7.2-7. 8 (7H, m), 8.1-8. 3 (3H, m) MS (m/z): 484 (M-1) Example 74 The following compound was obtained according to a similar manner to that of Example 73.

4-[[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2-hydroxyethyl]- amino] -5,6, 7, 8-tetrahydro-2-naphthalenyl] sulfonyl] benzoic

acid hydrochloride NMR (200MHz, DMSO-d6, 8) : 1. 8-2. 2 (4H, m), 2.6-3. 5 (5H, m), 5.03 (1H, m), 6.36 (1H, m), 7.3-7. 8 (7H, m), 8.0-8. 2 (4H, m) MS (m/z): 484 (M-1) Example 75 The following compound was obtained according to a similar manner to that of Preparation 4 following a similar manner to that of Example 37.

3-[[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2-hydroxyethyl]- amino] -5,6, 7, 8-tetrahydro-2-naphthalenyl] amino] benzoic acid dihydrochloride NMR (200MHz, DMSO-d6, 8) : 1.8-2. 2 (4H, m), 2.6-3. 5 (5H, m), 5.02 (2H, m), 6.5-7. 8 (11H, m) MS (m/z): 435 (M-1) Example 76 To a solution of (7S)-7- [N- (tert-butoxycarbonyl)-N- [ (2R)-2- (3-chlorophenyl)-2-hydroxyethyl] amino]-5, 6,7, 8- tetrahydro-2-naphthalenyl trifluoromethanesulfonate (500 mg) in N, N-dimethylformamide (10 ml) was added methoxycarbonylphenyl acetylene (100 mg), dichlorobis (triphenylphosphine) palladium (II) (50 mg), and triethylamine (100 ml) and the mixture was stirred at 100°C for 18 hours under nitrogen. The mixture was diluted with ethyl acetate and water. The organic layer was separated, washed with brine, dried over magnesium sulfate and evaporated. The residue was purified by column chromatography on silica gel (hexane/ethyl acetate = 5/1) to give acetylene derivative. To a solution of the obtained acetylene derivative in methanol (10 ml) was added 1N sodium hydroxide (5 ml) at room temperature, and the mixture was stirred at the same temperature for 12 hours. The resulting

mixture was evaporated under reduced pressure. The residue was diluted with a mixture of ethyl acetate (30 ml) and IN hydrochloric acid (10 ml), and the organic layer was washed with brine, dried over magnesium sulfate, and evaporated under reduced pressure. The obtained crude was diluted with 6N hydrogen chloride in dioxane (10 ml) and the mixture was allowed to keep at room temperature for 4 hours. The mixture was evaporated under reduced pressure and the obtained solid was washed with ether to give 4- [ [ (7S)-7- [ [ (2R)-2- (3-chlorophenyl)-2-hydroxy. ethyl] amino]-5, 6,7, 8- tetrahydro-2-naphthalenyl] ethynyl] benzoic acid hydrochloride (150 mg).

NMR (200MHz, DMSO-d6, 8) : 1.8-2. 2 (4H, m), 2.6-3. 5 (5H, m), 5.04 (1H, m), 6.38 (1H, m), 7.1-7. 5 (7H, m), 7.64 (2H, d, J=8.4Hz), 7.96 (2H, d, J=8.4Hz), 8.93 (1H, m), 9.20 (1H, m) MS (m/z): 446 (M-1) Example 77 To a mixture of (7S)-7- [N- [ (2R)-2- (3-chlorophenyl)-2- hydroxyethyl]-N- (tert-butoxycarbonyl) amino]-2-hydroxy- 5,6, 7,8-tetrahydronaphthalene (200 mg) in N, N-dimethyl- formamide (10 ml) were added methyl 4- (bromomethyl) benzoate (100 mg) and potassium carbonate (100 mg) at room temperature, and the mixture was stirred at the same temperature for 12 hours. The residue was diluted with a mixture of ethyl acetate and water, and the organic layer was washed with brine, dried over magnesium sulfate, and evaporated under reduced pressure. The residue was purified by column chromatography on silica gel to give ester derivative. To a solution of the obtained ester derivative in methanol (10 ml) was added IN sodium hydroxide (5 ml) at room temperature, and the mixture was stirred at the same temperature for 12 hours. The resulting mixture was evaporated under reduced pressure. The residue was diluted

with a mixture of ethyl acetate (30 ml) and 1N hydrochloric acid (10 ml), and the organic layer was washed with brine, dried over magnesium sulfate, and evaporated under reduced pressure. The obtained benzoic-acid was diluted with 6N hydrogen chloride in 1,4-dioxane (10 ml) and the mixture was allowed to keep at room temperature for 4 hours. The mixture was evaporated under reduced pressure and the obtained solid was washed with ether to give 4- [ [ [ (7S)-7- [ [ (2R)-2- (3-chlorophenyl)-2-hydroxyethyl]-amino]-5, 6,7, 8- tetrahydro-2-naphthalenyl] oxy] methyl] benzoic acid hydrochloride (87 mg).

NMR (200MHz, DMSO-d6, 8): 1. 8-2. 2 (2H, m), 2.6-3. 6 (7H, m), 5.05 (1H, m), 5.16 (2H, s), 6.36 (1H, m), 6.7- 7.0 (3H, m), 7.2-7. 7 (6H, m), 7.95 (2H, d, J=8.4Hz), 8.92 (1H, m), 9.33 (1H, m) MS (m/z): 452 (M+1) Example 78 The following compound was obtained according to a similar manner to that of Example 77.

3- [ [ [ (7S)-7- [ [ (2R)-2- (3-Chlorophenyl)-2-hydroxyethyl]- amino] -5,6, 7, 8-tetrahydro-2-naphthalenyl] oxy] methyl] benzoic acid hydrochloride NMR (200MHz, DMSO-d6, 8) : 1. 8-2. 2 (2H, m), 2.6-3. 6 (7H, m), 5.02 (1H, m), 5.14 (2H, s), 6.36 (1H, m), 6.7- 7.0 (3H, m), 7.2-7. 6 (5H, m), 7.66 (1H, d, J=8.4Hz), 7.89 (1H, d, J=8. 4Hz), 7.99 (1H, s) MS (m/z): 452 (M+1) Example 79 To a mixture of (7S)-7- [N- [ (2R)-2- (3-chlorophenyl)-2- hydroxyethyl]-N- (tert-butoxycarbonyl) amino] -2-bromomethyl- 5,6, 7, 8-tetrahydronaphthalene (120 mg) in N, N-dimethyl- formamide (10 ml) were added ethyl 4-piperidinecarbonate

(100 mg) and potassium carbonate (100 mg) at room temperature, and the mixture was stirred at the same temperature for 12 hours. The residue was diluted with a mixture of ethyl acetate and water, and the organic layer was washed with brine, dried over magnesium sulfate, and evaporated under reduced pressure. The residue was purified by column chromatography on silica gel to give ester derivative. To a solution of the obtained ester derivative in methanol (10 ml) was added 1N sodium hydroxide (5 ml) at room temperature, and the mixture was stirred at the same temperature for 12 hours. The resulting mixture was evaporated under reduced pressure. The residue was diluted with a mixture of ethyl acetate (30 ml) and 1N hydrochloric acid (10 ml), and the organic layer was washed with brine, dried over magnesium sulfate, and evaporated under reduced pressure. The obtained product was diluted with 6N hydrogen chloride in 1,4-dioxane (10 ml) and the mixture was allowed to keep at room temperature for 4 hours. The mixture was evaporated under reduced pressure and the obtained solid was washed with ether to give 1- [ [ (7S)-7- [ [ (2R)-2- (3- chlorophenyl)-2-hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2- naphthalenyl] methyl]-4-piperidinecarboxylic acid dihydrochloride (90 mg).

NMR (200MHz, DMSO-d6, 8) : 1.8-3. 8 (15H, m), 4.16 (2H, m), 5.08 (1H, m), 6.37 (1H, m), 7.0-7. 7 (7H, m) MS (m/z): 441 (M-1) Example 80 The following compounds were obtained according to a similar manner to that of Example 79.

(1) (3R)-1-[[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2- hydroxyethyljamino]-5, 6,7, 8-tetrahydro-2-naphthalenyl] - methyl]-3-piperidinecarboxylic acid dihydrochloride NMR (200MHz, DMSO-d6, 8) : 1.8-3. 8 (15H, m), 4.21 (2H,

m), 5.08 (1H, m), 6.37 (1H, m), 7.0-7. 5 (7H, m) MS (m/z): 441 (M-1) (2) (3R)-1-[[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2- hydroxyethyl] amino]-5, 6,7, 8-tetrahydro-2-naphthalenyl]- methyl]-3-piperidinecarboxylic acid dihydrochloride NMR (200MHz, DMSO-d6, 8) : 1.8-3. 8 (15H, m), 4.21 (2H, m), 5.08 (1H, m), 6.37 (1H, m), 7.0-7. 5 (7H, m) MS (m/z): 441 (M-1) Example 81 The following compound was obtained according to a similar manner to that of Preparation 4.

3-[[(7S)-7-[[(2R)-2-(3-Chlorophenyl)-2-hydroxyethyl]- <BR> <BR> <BR> amino] -5,6, 7, 8-tetrahydro-2-naphthalenyl] methyl] benzoic acid hydrochloride NMR (200MHz, DMSO-d6, 8) : 1.8-2. 2 (4H, m), 2.6-3. 5 (5H, m)., 5.02 (1H, m), 6.5-7. 8 (11H, m) MS (m/z): 436 (M+1)