Esters and amides as PLA2 inhibitors

TECHNICAL FIELD

[0001] The present invention relates to a novel fatty acid derivative and a pharmaceutically acceptable salt thereof which are useful as a medicament.

BACKGROUND ART

[0002] A phospholipase A2 inhibitor having the structure of that of the present invention has not been known.

DISCLOSURE OF INVENTION

[0003] The present invention relates to novel fatty acid derivative and a pharmaceutically acceptable salt thereof, which are phospholipase A2 inhibitors and are useful for the prevention and/or the treatment of pancreatitis, hepatitis, chronic renal failure, etc; shock (e.g. endotoxin shock, gram-negative septic shock, etc), arthritis (e.g. rheumatoid arthritis, osteoarthritis, etc), respiratory disease (e.g. bronchial asthma, bronchitis, adult respiratory distress syndrome, etc), heart disease (e.g. myocardial ischemia, etc), allergic disease, thrombosis, arteriosclerosis, pain, autoimmune disease, dermal disease (e.g. atopic dermatitis, psoriasis, contact dermatitis, etc), inflammatory bowel disease (e.g. Crohn's disease, ulcerative colitis, etc), ophthalmic disease (e.g. allergic ophthalmic disease, inflammatory ophthalmic disease, etc), nasal diseases (e.g. allergic rhinitis, etc), gout, trauma induced inflammation (e.g. spinal cord injury, etc), liver diseases (e.g. cirrhosis, hepatitis, etc), or the like; to a process for preparation thereof, to a pharmaceutical composition comprising the same, and to a method for using the same therapeutically in human being and animals for the prevention and/or treatment of the aforesaid diseases.

[0004] The object fatty acid derivative can be represented by the following formula (I):

[0005] wherein

[0006] R1 is acyl group,

[0007] R2 is acyl(lower)alkyl,

[0008] R3 is hydrogen, aryl(lower)alkyl which may have one or more suitable substituent(s), aryl(higher)alkyl which may have one or more suitable substituent(s), heterocyclic(lower)alkyl which may have one or more suitable substituent(s), higher alkoxy(lower)alkyl, lower alkyl, or higher alkyl,

[0009] R4 is acyl(lower)alkyl, and

[0010] X is —O—,

[0011] [wherein R5 is lower alkyl, [cyclo(lower)alkyl](lower)alkyl, aryl(lower)alkyl, or heterocyclic(lower)alkyl], with proviso that X is

[0012] (wherein R5 is as defined above), when R3 is lower alkyl or higher alkyl.

[0013] It is to be noted the object compound (I) may include one or more stereoisomers due to asymmetric carbon atom(s) and double bond, and all of such isomers and a mixture thereof are included within the scope of the present invention.

[0014] It is further to be noted 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 is also included within the scope of the present invention.

[0015] 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.

[0016] The object compound (I) or a salt thereof can be prepared according to the following reaction schemes.

[0017] wherein

[0018] R1, R2, R3, R4 and X are each as defined above,

[0019] Ra2 is protected carboxy(lower)alkyl,

[0020] Rb2 is carboxy(lower)alkyl.

[0021] The starting compound (IV) or a salt thereof can be prepared according to the following reaction scheme.

[0022] wherein

[0023] R1, R2, R3, R4 and X are each as defined above.

[0024] Among the starting compounds, there are some novel compounds. They can be prepared according to the methods as described in Preparations in the present specification or the conventional manners in this field of the art.

[0025] Suitable pharmaceutically acceptable salts of the object compound (I) are conventional ones and include a metal salt such as an alkali metal salt (e.g. sodium salt, potassium salt, etc) and an alkaline earth metal salt (e.g. calcium salt, magnesium salt, etc), an ammonium salt, an organic base salt (e.g. trimethylamine salt, triethylamine salt, pyridine salt, picoline salt, dicyclohexylamine salt, N,N′-dibenzylethylenediamine salt, etc), an organic acid salt (e.g. acetate, trifluoroacetate, maleate, tartrate, fumarate, methanesulfonate, benzenesulfonate, formate, toluenesulfonate, etc), an inorganic acid salt (e.g. hydrochloride, hydrobromide, hydriodide, sulfate, phosphate, etc), a salt with an amino acid (e.g. arginine, aspartic acid, glutamic acid, etc), and the like.

[0026] In the above and following descriptions of the present specification, suitable examples and illustrations of the various definitions which the present invention includes within the scope thereof are explained in detail as follows.

[0027] The term “lower” is intended to mean 1 to 6 carbon atom(s) unless otherwise indicated.

[0028] The term “higher” is intended to mean 7 to 20 carbon atoms unless otherwise indicated.

[0029] Suitable example of “lower alkyl” and “lower alkyl” moiety in the terms used in the present specification may include straight or branched one such as methyl, ethyl, propyl, isopropyl, butyl, isobutyl, t-butyl, pentyl, isopentyl, hexyl or the like.

[0030] Suitable “lower alkenyl” and “lower alkenyl” moiety in the terms used in the present specification may include vinyl, 1-(or 2-)propenyl, 1-(or 2- or 3-)butenyl, 1-(or 2- or 3- or 4-)pentenyl, 1-(or 2- or 3- or 4- or 5-)hexenyl, methylvinyl, ethylvinyl, 1-(or 2- or 3-)methyl-1-(or 2-)-propenyl, 1-(or 2- or 3-)ethyl-1-(or 2-)propenyl, 1-(or 2- or 3- or 4-)methyl-1-(or 2- or 3-)butenyl or the like, in which the preferred one may be (C2-C4)alkenyl.

[0031] Suitable “higher alkyl” and “higher alkyl” moiety in the terms used in the present specification may include straight or branched one such as heptyl, 2-methylheptyl, octyl, nonyl, decyl, undecyl, dodecyl, tridecyl, 11-methyldodecyl, 12-methyltridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl, nonadecyl, icosyl or the like, in which the preferred one may be (C7-C16)alkyl, and the more preferred one may be heptyl, octyl, nonyl, decyl, or tridecyl.

[0032] Suitable “halogen” may include fluorine, chlorine, bromine, iodine, in which more preferable one may be chlorine.

[0033] Suitable “aryl” and “aryl” moiety in the terms used in the present specification may include phenyl, naphthyl and the like.

[0034] Suitable “acyl group” and “acyl” moiety in the terms used in the present specification may be aliphatic acyl, aromatic acyl, heterocyclic acyl, arylaliphatic acyl and heterocyclic-aliphatic acyl derived from carboxylic acid, carbonic acid, carbamic acid, sulfonic acid, and the like.

[0035] Suitable example of the “acyl group” thus explained may be:

[0036] (1) lower alkanoyl [e.g. formyl, acetyl, propionyl, butyryl, isobutyryl, valeryl, hexanoyl, pivaloyl, etc] which may have one or more (preferably 1 to 3) suitable substituent(s) such as halogen (e.g. fluoro, chloro, bromo, iodo); hydroxy; lower alkoxy (e.g. methoxy, ethoxy, propoxy, butoxy, t-butoxy, pentyloxy, hexyloxy, etc); amino; protected amino, preferably, acylamino such as lower alkoxycarbonylamino (e.g. methoxycarbonylamino, ethoxycarbonylamino, propoxycarbonylamino, butoxycarbonylamino, t-butoxycarbonylamino, pentyloxycarbonylamino, hexyloxycarbonylamino, etc); or the like; di(lower)alkylamino (e.g. dimethylamino, N-methylethylamino, diethylamino, N-propylbutylamino, dipentylamino, dihexylamino, etc); lower alkoxyimino (e.g. methoxyimino, ethoxyimino, propoxyimino, butoxyimino, t-butoxyimino, pentyloxyimino, hexyloxyimino, etc); ar(lower)alkoxyimino such as phenyl(lower)alkoxyimino (e.g. benzyloxyimino, phenethyloxyimino, benzhydryloxyimino, etc); or the like;

[0037] (2) higher alkanoyl [e.g. heptanoyl, octanoyl, nonanoyl, decanoyl, undecanoyl, lauroyl, tridecanoyl, myristoyl, pentadecanoyl, palmitoyl, 14-methylpentadecanoyl, 15-methylhexadecanoyl, 10,12-dimethyltetradecanoyl, heptadecanoyl, stearoyl, nonadecancyl, icosanoyl, etc] which may have one or more (preferably 1 to 3) suitable substituent(s) as exemplified for those of “lower alkanoyl”;

[0038] (3) lower alkenoyl [e.g. acryloyl, crotonoyl, isocrotonoyl, methacryloyl, 3-pentenoyl, 2,4-pentadienoyl, 5-hexenoyl, 2,4-hexadienoyl, etc] which may have one or more (preferably 1 to 3) suitable substituent(s) as exemplified for those of “lower alkanoyl”;

[0039] (4) higher alkenoyl [e.g. 4-heptenoyl, 3-octenoyl, 3,6-decadienoyl, 3,7,11-trimethyl-2,6,10-dodecatrienoyl, 4,10-heptadecadienoyl, etc] which may have one or more (preferably 1 to 3) suitable substituent(s) as exemplified for those of “lower alkanoyl”;

[0040] (5) protected carboxy, in which the preferred one may be esterified carboxy such as lower alkoxycarbonyl [e.g. methoxycarbonyl, ethoxycarbonyl, propoxycarbonyl, butoxycarbonyl, t-butoxycarbonyl, pentyloxycarbonyl, hexyloxycarbonyl, etc], halo(lower)alkoxycarbonyl [e.g. (chloromethoxy)carbonyl, (2,2,2-trichloroethoxy)carbonyl, (2,2,2-trifluoroethoxy)carbonyl, (2-chloropropoxy)carbonyl, (1-fluoro-4-bromobutoxy)carbonyl, (4-chloropentyloxy)-carbonyl, (6-chlorohexyloxy)carbonyl, etc], higher alkoxycarbonyl [e.g. heptyloxycarbonyl, octyloxycarbonyl, 2-ethylhexyloxycarbonyl, nonyloxycarbonyl, decyloxycarbonyl, 3,7-dimethyloctyloxycarbonyl, undecyloxycarbonyl, dodecyloxycarbonyl, tridecyloxycarbonyl, tetradecyloxycarbonyl, pentadecyloxycarbonyl, 3-methyl-10-ethyldodecyloxycarbonyl, hexadecyloxycarbonyl, heptadecyloxycarbonyl, octadecyloxycarbonyl, nonadecyloxycarbonyl, icosyloxycarbonyl, etc], aryloxycarbonyl [e.g. phenoxycarbonyl, naphthyloxycarbonyl, etc], aryl(lower)alkoxycarbonyl which may have one or more (preferably 1 to 3) suitable substituent(s) such as phenyl(lower)alkoxycarbonyl which may have nitro or lower alkoxy [e.g. benzyloxycarbonyl, phenethyloxycarbonyl, p-nitrobenzyloxycarbonyl, p-methoxybenzyloxycarbonyl, etc], or the like;

[0041] (6) carboxy;

[0042] (7) lower alkylsulfonyl [e.g. methylsulfonyl, ethylsulfonyl, propylsulfonyl, isopropylsulfonyl, pentylsulfonyl, butylsulfonyl, etc];

[0043] (8) arylsulfonyl [e.g. phenylsulfonyl, 1-(or 2-)-naphthylsulfonyl, etc] which may have one or more (preferably 1 to 3) suitable substituent(s) such as lower alkyl, di(lower)alkylamino, lower alkylamino (e.g. methylamino, ethylamino, propylamino, butylamino, t-butylamino, pentylamino, hexylamino, etc), or the like;

[0044] (9) aryl(lower)alkylsulfonyl such as phenyl(lower)alkylsulfonyl [e.g. benzylsulfonyl, phenethylsulfonyl, benzhydrylsulfonyl, etc], or the like;

[0045] (10) aryl(lower)alkanoyl such as phenyl(lower)alkanoyl or naphthyl(lower)alkanoyl [e.g. benzoyl, naphthoyl (e.g. 1-naphthoyl, 2-naphthoyl, etc), 2-phenylacetyl, 2-phenylpropionyl, 4-(1-naphthyl)butyryl, 3-phenylvaleryl, 2,5-diphenylhexanoyl, etc], each of which may have one or more (preferably 1 to 3) suitable substituent(s) such as lower alkoxy, aryl (e.g. phenyl, naphthyl, anthryl, etc), carboxy(lower)alkyl (e.g. carboxymethyl, 2-carboxyethyl, 1-carboxypropyl, 4-carboxybutyl, 3-carboxypentyl, 6-carboxyhexyl, etc), protected carboxy(lower)alkyl (e.g. methoxycarbonylmethyl, 2-methoxycarbonylethyl, 2-(t-butoxycarbonyl)ethyl, etc) which may be substituted by aryl (e.g. phenyl, naphthyl, etc), protected carboxy(lower)alkenyl (e.g. 2-methoxycarbonylvinyl, etc), amidated carboxy(lower)alkyl (e.g. 2-carbamoylethyl, etc), aryl(lower)alkyl (e.g. benzyl, phenethyl, etc) which may have one or more suitable substituent(s), or the like;

[0046] (11) aryl(lower)alkenoyl (e.g. 3-phenylacryloyl, 2-phenylacryloyl, 2-naphthylacryloyl, 3-phenylcrotonoyl, 4-phenylisocrotonoyl, 2-benzylacryloyl, 5-phenyl-3-pentenoyl, 3-naphthyl-2,4-pentadienoyl, 2-phenyl-5-hexenoyl, 6-phenyl-2,4-hexadienoyl, etc);

[0047] (12) heterocyclic(lower)alkanoyl which may have one or more (preferably 1 to 3) suitable substituent(s) such as lower alkyl, aryl(lower)alkyl which may have one or more suitable substituent(s) (e.g. benzyl, 1-naphthylmethyl, 4-methylbenzyl, 2-chlorobenzyl, 3-chlorobenzyl, 4-chlorobenzyl, etc), heterocyclic(lower)alkyl (e.g. 2-pyridylmethyl, etc) which may have one or more suitable substituent(s), or the like;

[0048] (13) heterocyclicsulfonyl;

[0049] (14) amidated carboxy such as carbamoyl,

[0050] N-heterocyclic-carbamoyl which may have one or more (preferably 1 to 3) suitable substituent(s) such as lower alkyl, halogen, or the like,

[0051] N-lower alkyl-N-heterocyclic-carbamoyl,

[0052] N-lower alkylcarbamoyl (e.g. N-methylcarbamoyl, N-ethylcarbamoyl, N-propylcarbamoyl, N-butylcarbamoyl, N-t-butylcarbamoyl, N-pentylcarbamoyl, N-hexylcarbamoyl, etc) which may have one or more (preferably 1 to 3) suitable substituent(s) such as heterocyclic group, hydroxy, or the like,

[0053] N-aryl(lower)alkylcarbamoyl such as N-(mono- or di- or tri-)phenyl(lower)alkylcarbamoyl (e.g. N-benzylcarbamoyl, N-phenethylcarbamoyl, N-benzhydrylcarbamoyl, N-tritylcarbamoyl, etc), or the like; or the like.

[0054] Suitable “heterocyclic” moiety in the terms used in the present specification may include saturated or unsaturated, monocyclic or polycyclic heterocyclic group such as

[0055] unsaturated 3 to 8-membered (more preferably 5 to 7-membered) heteromonocyclic group containing 1 to 4 nitrogen atom(s), for example, azepinyl (e.g. 1H-azepinyl, etc), pyrrolyl, pyrrolinyl, imidazolyl, pyrazolyl, pyridyl and its N-oxide, dihydropyridyl, pyrimidinyl, pyrazinyl, pyridazinyl, triazolyl (e.g. 4H-1,2,4-triazolyl, 1H-1,2,3-triazolyl, 2H-1,2,3-triazolyl, etc), tetrazolyl (e.g. 1H-tetrazolyl, 2H-tetrazolyl, etc), etc;

[0056] saturated 3 to 8-membered (more preferably 5 to 7-membered) heteromonocyclic group containing 1 to 4 nitrogen atom(s), for example, perhydroazepinyl (e.g. perhydro-1H-azepinyl, etc), pyrrolidinyl, imidazolidinyl, piperidyl, piperazinyl, etc;

[0057] unsaturated condensed heterocyclic group containing 1 to 4 nitrogen atom(s), for example, indolyl, isoindolyl, indolizinyl, benzimidazolyl, quinolyl, isoquinolyl, indazolyl, benzotriazolyl, quinoxalinyl, imidazopyridyl [e.g. imidazo[4,5-c]pyridyl, etc], tetrahydroimidazopyridyl [e.g. 4,5,6,7-tetrahydro[4,5-c]pyridyl, etc], etc;

[0058] saturated condensed heterocyclic group containing 1 to 4 nitrogen atom(s), for example, 7-azabicyclo[2.2.1]-heptyl, 3-azabicyclo[3.2.2]nonanyl, etc;

[0059] unsaturated 3 to 8-membered (more preferably 5 or 6-membered) heteromonocyclic group containing 1 to 2 oxygen atom(s) and 1 to 3 nitrogen atom(s), for example, oxazolyl, isoxazolyl, oxadiazolyl (e.g. 1,2,4-oxadiazolyl, 1,3,4-oxadiazolyl, 1,2,5-oxadiazolyl, etc), etc;

[0060] saturated 3 to 8-membered (more preferably 5 or 6-membered) heteromonocyclic group containing 1 to 2 oxygen atom(s) and 1 to 3 nitrogen atom(s), for example, morpholinyl, sydnonyl, etc;

[0061] unsaturated condensed heterocyclic-group containing 1 to 2 oxygen atom(s) and 1 to 3 nitrogen atom(s), for example, benzoxazolyl, benzoxadiazolyl, etc;

[0062] unsaturated 3 to 8-membered (more preferably 5 or 6-membered) heteromonocyclic group containing 1 to 2 sulfur atom(s) and 1 to 3 nitrogen atom(s), for example, thiazolyl, isothiazolyl, thiadiazolyl (e.g. 1,2,3-thiadiazolyl, 1,2,4-thiadiazolyl, 1,3,4-thiadiazolyl, 1,2,5-thiadiazolyl, etc), dihydrothiazinyl, etc;

[0063] saturated 3 to 8-membered (more preferably 5 or 6-membered) heteromonocyclic group containing 1 to 2 sulfur atom(s) and 1 to 3 nitrogen atom(s), for example, thiazolidinyl, etc;

[0064] unsaturated condensed heterocyclic group containing 1 to 2 sulfur atom(s) and 1 to 3 nitrogen atom(s), for example, benzothiazolyl, benzothiadiazolyl, etc;

[0065] saturated condensed heterocyclic group containing 1 to 4 nitrogen atom(s), and

[0066] saturated 3 to 8-membered heteromonocyclic group containing 1 to 2 oxygen atom(s) and 1 to 3 nitrogen atom(s),

[0067] unsaturated 3 to 8-membered (more preferably 5 or 6-membered) heteromonocyclic group containing 1 to 2 oxygen atom(s), for example, furyl, etc;

[0068] unsaturated condensed heterocyclic group containing 1 to 2 oxygen atom(s), for example, benzofuranyl (e.g. benzo[b]furanyl, etc), etc;

[0069] unsaturated 3 to 8-membered (more preferably 5 or 6-membered) heteromonocyclic group containing an oxygen atom and 1 to 2 sulfur atom(s), for example, dihydrooxathiinyl, etc;

[0070] unsaturated condensed heterocyclic group containing 1 to 2 sulfur atom(s), for example, benzothienyl, benzodithiinyl, etc;

[0071] unsaturated condensed heterocyclic group containing an oxygen atom and 1 to 2 sulfur atom(s), for example, benzoxathiinyl, etc; or the like.

[0072] Suitable “aryl(lower)alkyl” may include mono-(or di- or tri-)phenyl(lower)alkyl (e.g. benzyl, phenethyl, 2-phenylpropyl, 2,4-diphenylbutyl, 1,3,5-triphenylpentyl, 6-phenylhexyl, etc), mono-(or di- or tri-)naphthyl(lower)-alkyl (e.g. 2-naphthylmethyl, 2-(1-naphthyl)ethyl, 2-(2-naphthyl)ethyl, etc), and the like.

[0073] This “aryl(lower)alkyl” may have one or more (preferably 1 to 3) suitable substituent(s) selected from the group consisting of lower alkyl (e.g. methyl, ethyl, butyl, etc), higher alkyl (e.g. pentyl, etc), lower alkoxy (e.g. methoxy, ethoxy, propoxy, butoxy, t-butoxy, pentyloxy, hexyloxy, etc), aryl (e.g. phenyl, naphthyl, etc), halogen (e.g. fluoro, chloro, bromo, iodo), and the like.

[0074] Suitable “aryl(higher)alkyl” may include mono-(or di- or tri-)phenyl(higher)alkyl (e.g. 7-phenylheptyl, 6-phenylheptyl, 4,6-diphenylheptyl, 3,5,7-triphenylheptyl, 8-phenyloctyl, etc), mono-(or di- or tri-)naphthyl(higher)-alkyl (e.g. 7-(2-naphthyl)heptyl, 8-(1-naphthyl)octyl, etc), and the like.

[0075] Each of the “aryl(higher)alkyl” and “heterocyclic(lower)alkyl” may have one or more (preferably 1 to 3) suitable substituent(s) as exemplified for those of “aryl(lower)alkyl” above.

[0076] Suitable “higher alkoxyl” moiety in the terms used in the present specification may include straight or branched one such as heptyloxy, 2-methylheptyloxy, octyloxy, nonyloxy, decyloxy, undecyloxy, dodecyloxy, tridecyloxy, 11-methyldodecyloxy, 12-methyltridecyloxy, tetradecyloxy, pentadecyloxy, hexadecyloxy, heptadecyloxy, octadecyloxy, nonadecyloxy, icosyloxy or the like, in which the preferred one may be (C7-C16)alkoxy and the more preferred one may be nonyloxy, or decyloxy.

[0077] Suitable “cyclo(lower)alkyl” moiety in the terms used in the present specification may include the ones having 3 to 6 carbon atoms such as cyclopropyl, cyclobutyl, cyclopentyl, or cyclohexyl.

[0078] In aforesaid “acyl group”, the preferred one may be

[0079] (1) lower alkoxycarbonyl, in which the more preferred one may be (C1-C4)alkoxycarbonyl, and the most preferred one may be t-butoxycarbonyl;

[0080] (2) aryl(lower)alkanoyl which may have one or more suitable substituent(s), in which the more preferred one may be phenyl(lower)alkanoyl or naphthyl(lower)alkanoyl, each of which may have 1 to 3 suitable substituent(s) selected from the group consisting of carboxy(lower)alkyl (e.g. carboxymethyl, 2-carboxyethyl, 1-carboxypropyl, 4-carboxybutyl, 3-carboxypentyl, 6-carboxyhexyl, etc), protected carboxy(lower)alkyl (e.g. methoxycarbonylmethyl, 2-methoxycarbonylethyl, 2-(t-butoxycarbonyl)ethyl, etc) which may be substituted by aryl (e.g. phenyl, naphthyl, etc), protected carboxy(lower)alkenyl (e.g. 2-methoxycarbonylvinyl, etc), amidated carboxy(lower)alkyl (e.g. 2-carbamoylethyl, etc), and aryl(lower)alkyl (e.g. benzyl, phenethyl, etc), the much more preferred one may be phenyl(C1-C4)alkanoyl which may have 1 to 3 suitable substituent(s) selected from the group consisting of carboxymethyl, 2-carboxyethyl, methoxycarbonylmethyl, benzyloxycarbonylmethyl, 2-methoxycarbonylethyl, 2-(t-butoxycarbonyl)ethyl, 2-methoxycarbonylvinyl, 2-carbamoylethyl, benzyl, and phenethyl, or naphthyl(C1-C4)alkanoyl which may have benzyl, the most preferred one maybe benzoyl, 2-(carboxymethyl)benzoyl, 2-(2-carboxyethyl)benzoyl, 2-(methoxycarbonylmethyl)benzoyl, 2-(benzyloxycarbonylmethyl)benzoyl, 2-(2-methoxycarbonylethyl)benzoyl, 2-[2-(t-butoxycarbonyl)ethyl]benzoyl, 2-(2-methoxycarbonylvinyl)benzoyl, 2-(2-carbamoylethyl)benzoyl, 2-benzylbenzoyl, 3-benzylbenzoyl, 2-phenethylbenzoyl, 2-naphthoyl, or 3-benzylnaphthalen-2-ylcarbonyl; or

[0081] (3) heterocyclic(lower)alkanoyl which may have one or more suitable substituent(s), in which the more preferred one may be heterocyclic(lower)alkanoyl, wherein heterocyclic moiety is unsaturated condensed heterocyclic group containing 1 to 4 nitrogen atom(s), which may have 1 to 3 lower alkylaryl(lower)alkyl, haloaryl(lower)alkyl, or heterocyclic(lower)alkyl, wherein heterocyclic moiety is unsaturated 3 to 8-membered heteromonocyclic group containing 1 to 4 nitrogen atom(s), the more preferred one may be quinolyl(C1-C4)alkanoyl, isoquinolyl(C1-C4)alkanoyl, or indolyl(C1-C4)alkanoyl which may have (C1-C4)alkylphenyl(C1-C4)alkyl, halophenyl(C1-C4)alkyl, or pyridyl(C1-C4)alkyl, the much more preferred one may be quinolylcarbonyl, isoquinolylcarbonyl, or indolylcarbonyl which may have benzyl, 1-naphthylmethyl, 4-methylbenzyl, 2-chlorobenzyl, 3-chlorobenzyl, 4-chlorobenzyl or 2-pyridylmethyl, the most preferred one may be 2-(or 3-)quinolylcarbonyl, 1-(or 3-)isoquinolylcarbonyl, 1-benzylindol-2-(or 3-)ylcarbonyl, 1-(1-naphthylmethyl)indol-3-ylcarbonyl, 1-(4-methylbenzyl)indol-2-(or 3-)ylcarbonyl, 1-[2-(or 3- or 4-)chlorobenzyl]indol-3-ylcarbonyl or 1-(2-pyridylmethyl)indol-3-ylcarbonyl.

[0082] The preferred “acyl” moiety in the term “acyl(lower)alkyl” may be carboxy; protected carboxy, in which the more preferred one may be lower alkoxycarbonyl or aryl(lower)alkoxycarbonyl, the much more preferred one may be (C1-C4)alkoxycarbonyl or phenyl(C1-C4)alkoxycarbonyl, and the most preferred one may be methoxycarbonyl or benzyloxycarbonyl; or amidated carboxy, in which the more preferred one may be carbamoyl.

[0083] The preferred “substituent” in the terms “aryl(lower)alkyl which may have one or more suitable substituent(s)”, “aryl(higher)alkyl which may have one or more suitable substituent(s)” and “heterocyclic(lower)alkyl which may have one or more suitable substituent(s)” may include lower alkyl as exemplified above, preferably (C1-C4)alkyl, more preferably methyl, ethyl or butyl; higher alkyl as exemplified above, preferably (C7-C16)alkyl, more preferably heptyl; aryl as exemplified above, preferably phenyl; or the like.

[0084] In the following, some of the preferred embodiments of the fatty acid derivative (I) of the present invention are shown.

[0085] (1) the derivative (I), wherein

[0086] R1 is protected carboxy; aryl(lower)alkanoyl which may have 1 to 3 suitable substituent(s) selected from the group consisting of lower alkoxy, aryl, carboxy(lower)alkyl, protected carboxy(lower)alkyl which may be substituted by aryl, protected carboxy(lower)alkenyl, amidated carboxy(lower)alkyl, and aryl(lower)alkyl which may have 1 to 3 suitable substituent(s) selected from the group consisting of lower alkyl, higher alkyl, lower alkoxy, aryl and halogen; heterocyclic(lower)alkanoyl which may have 1 to 3 suitable substituent(s) selected from the group consisting of lower alkyl, aryl(lower)alkyl which may have 1 to 3 suitable substituent(s) selected from the group consisting of lower alkyl, higher alkyl, lower alkoxy, aryl and halogen, and heterocyclic(lower)alkyl which may have 1 to 3 suitable substituent(s) selected from the group consisting of lower alkyl, higher alkyl, lower alkoxy, aryl and halogen;

[0087] R2 is carboxy(lower)alkyl or protected carboxy(lower)alkyl,

[0088] R3 is hydrogen; aryl(lower)alkyl which may have 1 to 3 suitable substituent(s) selected from the group consisting of lower alkyl, higher alkyl, lower alkoxy, aryl and halogen; aryl(higher)alkyl which may have 1 to 3 suitable substituent(s) selected from the group consisting of lower alkyl, higher alkyl, lower alkoxy, aryl and halogen; heterocyclic(lower)alkyl which may have 1 to 3 suitable substituent(s) selected from the group consisting of lower alkyl, higher alkyl, lower alkoxy, aryl and halogen; higher alkoxy(lower)alkyl; lower alkyl; or higher alkyl,

[0089] R4 is carbamoyl(lower)alkyl, and

[0090] X is —O—, —NH— or

[0091] [wherein R5 is lower alkyl, [cyclo(lower)alkyl]-(lower)alkyl, aryl(lower)alkyl, or heterocyclic(lower)alkyl],

[0092] with proviso that X is

[0093] (wherein R5 is as defined above), when R3 is lower alkyl or higher alkyl.

[0094] (2) the derivative (I), wherein

[0095] R1 is esterified carboxy (preferably lower alkoxycarbonyl); phenyl(lower)alkanoyl or naphthyl(lower)alkanoyl, each of which may have 1 to 3 suitable substituent(s) selected from the group consisting of carboxy(lower)alkyl, esterified carboxy(lower)alkyl (preferably lower alkoxycarbonyl(lower)alkyl) which may be substituted by phenyl, esterified carboxy(lower)alkenyl (preferably lower alkoxycarbonyl(lower)alkenyl), carbamoyl(lower)alkyl and phenyl(lower)alkyl; or heterocyclic(lower)alkanoyl which may have 1 to 3 suitable substituent(s) selected from the group consisting of pyridyl(lower)alkyl, naphthyl(lower)alkyl and phenyl(lower)alkyl which may have 1 to 3 suitable substituent(s) selected from the group consisting of lower alkyl and halogen, in which the heterocyclic moiety is unsaturated condensed heterocyclic group containing 1 to 4 nitrogen atom(s),

[0096] R2 is carboxy(lower)alkyl or esterified carboxy(lower)alkyl (preferably methoxycarbonyl(lower)alkyl or benzyloxycarbonyl(lower)alkyl),

[0097] R3 is hydrogen; phenyl(lower)alkyl which may have 1 to 3 suitable substituent(s) selected from the group consisting of lower alkyl; higher alkyl and phenyl; or naphthyl(lower)alkyl which may be substituted by lower alkyl,

[0098] R4 is carbamoyl(lower)alkyl, and

[0099] X is —O—.

[0100] (3) the derivative (I), wherein

[0101] R1, R2, R3 and R4 are each as defined above in (2), and

[0102] X is —NH— or

[0103] [wherein R5 is lower alkyl, phenyl(lower)alkyl, or pyridyl(lower)alkyl].

[0104] (4) the derivative (I), wherein

[0105] R1, R2, R4 and X are each as defined above in (2), and

[0106] R3 is phenyl(higher)alkyl.

[0107] (5) the derivative (I), wherein

[0108] R1, R2, R3 and R4 are each as defined above in (4), and

[0109] X is —NH— or

[0110] [wherein R5 is as defined above in (3)].

[0111] (6) the derivative (I), wherein

[0112] R1, R2, R4 and X are each as defined above in (2), and

[0113] R3 is heterocyclic(lower)alkyl, in which the heterocyclic moiety is unsaturated condensed heterocyclic group containing 1 to 2 oxygen atom(s).

[0114] (7) the derivative (I), wherein

[0115] R1, R2, R3 and R4 are each as defined above in (6), and

[0116] X is —NH— or

[0117] [wherein R5 is as defined above in (3)].

[0118] (8) the derivative (I), wherein

[0119] R1, R2, R4 and X are each as defined above in (2), and

[0120] R3 is higher alkoxy(lower)alkyl.

[0121] (9) the derivative (I), wherein

[0122] R1, R2, R3 and R4 are each as defined above in (8), and

[0123] X is —NH— or

[0124] [wherein R5 is as defined above in (3)].

[0125] (10) the derivative (I), wherein

[0126] R1, R2 and R4 are each as defined above in (2), and

[0127] R3 is lower alkyl, and

[0128] X is

[0129] [wherein R5 is as defined above in (3)].

[0130] (11) the derivative (I), wherein

[0131] R1, R2 and R4 are each as defined above in (2), and

[0132] R3 is higher alkyl, and

[0133] X is

[0134] [wherein R5 is as defined above in (3)].

[0135] (12) the derivative (I), wherein

[0136] R1 is (C1-C4)alkoxycarbonyl; phenyl(C1-C4)alkanoyl or naphthyl(C1-C4)alkanoyl, each of which may have carboxy(C1-C4)-alkyl, (C1-C4)alkoxycarbonyl(C1-C4)alkyl which may be substituted by phenyl, (C1-C4)alkoxycarbonyl-(C2-C4)alkenyl, carbamoyl(C1-C4)alkyl or phenyl(C1-C4)alkyl; heterocyclic(C1-C4)alkanoyl which may have pyridyl(C1-C4)alkyl, naphthyl(C1-C4)alkyl or phenyl(C1-C4)alkyl which may have 1 to 3 suitable substituent(s) selected from the group consisting of (C1-C4)alkyl and chloro, in which the heterocyclic moiety is indolyl, quinolyl or isoquinolyl,

[0137] R2 is carboxy(C1-C4)alkyl, methoxycarbonyl(C1-C4)alkyl, or benzyloxy(C1-C4)alkyl,

[0138] R3 is hydrogen; phenyl(C1-C4)alkyl which may have (C1-C4)alkyl, (C7-C16)alkyl or phenyl; or naphthyl(C1-C4)alkyl which may have (C1-C4)alkyl,

[0139] R4 is carbamoyl(C1-C4)alkyl, and

[0140] X is —O—.

[0141] (13) the derivative (I), wherein

[0142] R1, R2, R3 and R4 are each as defined above in (12), and

[0143] X is —NH— or

[0144] [wherein R5 is (C1-C5)alkyl, phenyl(C1-C4)alkyl, or pyridyl(C1-C4)alkyl].

[0145] (14) the derivative (I), wherein

[0146] R1, R2, R4 and X are each as defined above in (12), and

[0147] R3 is phenyl(C7-C16)alkyl.

[0148] (15) the derivative (I), wherein

[0149] R1, R2, R3 and R4 are each as defined above in (14), and

[0150] X is —NH— or

[0151] [wherein R5 is as defined above in (13)].

[0152] (16) the derivative (I), wherein

[0153] R1, R2, R4 and X are each as defined above in (12), and

[0154] R3 is benzofuranyl(C1-C4)alkyl.

[0155] (17) the derivative (I), wherein

[0156] R1, R2, R3 and R4 are each as defined above in (16), and

[0157] X is —NH— or

[0158] [wherein R5 is as defined above in (13)].

[0159] (18) the derivative (I), wherein

[0160] R1, R2, R4 and X are each as defined above in (12), and

[0161] R3 is (C7-C16)alkoxy(C1-C4)alkyl.

[0162] (19) the derivative (I), wherein

[0163] R1, R21 R3 and R4 are each as defined above in (18), and

[0164] X is —NH— or

[0165] [wherein R5 is as defined above in (13)].

[0166] (20) the derivative (I), wherein

[0167] R1, R2, R4 and X are each as defined above in (12), and

[0168] R3 is (C3-C6)alkyl.

[0169] (21) the derivative (I), wherein

[0170] R1, R2, R3 and R4 are each as defined above in (20), and

[0171] X is

[0172] [wherein R5 is as defined above in (13)].

[0173] (22) the derivative (I), wherein

[0174] R1, R2, R4 and X are each as defined above in (12), and

[0175] R3 is (C7-C16)alkyl.

[0176] (23) the derivative (I), wherein

[0177] R1, R2, R3 and R4 are each as defined above in (22), and

[0178] X is

[0179] [wherein R5 is as defined above in (15)].

[0180] The processes for preparing the object compound (I) of the present invention are explained in detail in the following.

[0181] Process 1

[0182] The compound (I) or a salt thereof can be prepared by reacting the compound (II) or a reactive derivative at the carboxy group or a salt thereof with the compound (III) or a salt thereof.

[0183] Suitable salts of the compounds (II) and (III) can be referred to the ones as exemplified for the compound (I).

[0184] Suitable reactive derivative at the carboxy group of the compound (II) may include an acid halide, an acid anhydride, an activated amide, an activated ester, and the like. Suitable examples of the reactive derivatives may be an acid chloride; an acid azide; a mixed acid anhydride with an acid such as substituted phosphoric acid [e.g. dialkylphosphoric acid, phenylphosphoric acid, diphenylphosphoric acid, dibenzylphosphoric acid, halogenated phosphoric acid, etc], dialkylphosphorous acid, sulfurous acid, thiosulfuric acid, sulfuric acid, sulfonic acid [e.g. methanesulfonic acid, etc], aliphatic carboxylic acid [e.g. acetic acid, propionic acid, butyric acid, isobutyric acid, pivalic acid, pentanoic acid, isopentanoic acid, 2-ethylbutyric acid, trichloroacetic acid, etc] or aromatic carboxylic acid [e.g. benzoic acid, etc]; a symmetrical acid anhydride; an activated amide with imidazole, 4-substituted imidazole, dimethylpyrazole, triazole, tetrazole or 1-hydroxy-1H-benzotriazole; or an activated ester [e.g. cyanomethyl ester, methoxymethyl ester, dimethyliminomethyl[(CH3)2N═CH—]ester, vinyl ester, propargyl ester, p-nitrophenyl ester, 2,4-dinitrophenyl ester, trichlorophenyl ester, pentachlorophenyl ester, mesylphenyl ester, phenylazophenyl ester, phenyl thioester, p-nitrophenyl thioester, p-cresyl thioester, carboxymethyl thioester, pyranyl ester, pyridyl ester, piperidyl ester, 8-quinolyl thioester, etc] or an ester with a N-hydroxy compound [e.g. N,N-dimethylhydroxylamine, 1-hydroxy-2-(1H)-pyridone, N-hydroxysuccinimide, N-hydroxyphthalimide, 1-hydroxy-1H-benzotriazole, etc], and the like. These reactive derivatives can optionally be selected from them according to the kind of the compound (II) to be used.

[0185] In the case that the group X is

[0186] in the compound (III), the compound (III) can be used in the form of its reactive derivative at the amino group.

[0187] Suitable said reactive derivative at the amino group may include Schiff's base type imino or its tautomeric enamine type isomer formed by the reaction of the compound (III) with a carbonyl compound such as aldehyde, ketone or the like; a silyl derivative formed by the reaction of the compound (III) with a silyl compound such as bis(trimethylsilyl)acetamide, mono(trimethylsilyl)acetamide, bis(trimethylsilyl)urea or the like; a derivative formed by reaction of the compound (III) with phosphorus trichloride or phosgene, and the like.

[0188] The reaction is usually carried out in a conventional solvent such as water, alcohol [e.g. methanol, ethanol, etc], acetone, dioxane, acetonitrile, chloroform, methylene chloride, ethylene chloride, tetrahydrofuran, ethyl acetate, N,N-dimethylformamide, pyridine or any other organic solvent which does not adversely influence the reaction. These conventional solvents may also be used in a mixture with water.

[0189] In this reaction, when the compound (II) is used in a free acid form or its salt form, the reaction is preferably carried out in the presence of a conventional condensing agent such as N,N′-dicyclohexylcarbodiimide; 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide; benzotriazole-1-yloxy-tris-pyrrolidinophosphonium hexafluorophosphate, or the like.

[0190] The reaction may also be carried out in the presence of an inorganic or organic base such as an alkali metal carbonate, alkali metal bicarbonate, tri(lower)alkylamine (e.g. triethylamine, etc), pyridine, di(lower)alkylamino-pyridine (e.g. N,N-dimethylaminopyridine, etc), N-(lower)-alkylmorpholine, N,N-di(lower)alkylbenzylamine, or the like.

[0191] The reaction temperature is not critical, and the reaction is usually carried out under cooling to warming.

[0192] Process 2

[0193] The compound (I) or a salt thereof can be prepared by reacting the compound (IV) or a reactive derivative at the amino group or a salt thereof with the compound (V) or a reactive derivative or a salt thereof.

[0194] Suitable salts of the compounds (IV) and (V) can be referred to the ones as exemplified for the compound (I).

[0195] The reaction of this process can be carried out according to a similar manner to that of Process 1, and so the reaction condition can be referred to the explanation therein.

[0196] Process 3

[0197] The compound (Ib) or a salt thereof can be prepared by subjecting a compound (Ia) or a salt thereof to elimination reaction of carboxy protective group.

[0198] This reaction is carried out in accordance with a conventional method such as hydrolysis, reduction or the like.

[0199] The hydrolysis is preferably carried out in the presence of a base or an acid including Lewis acid.

[0200] Suitable base may include an inorganic base and an organic base such as an alkali metal [e.g. sodium, potassium, etc], an alkaline earth metal [e.g. magnesium, calcium, etc], the hydroxide or carbonate or bicarbonate thereof, trialkylamine [e.g. trimethylamine, triethylamine, etc], picoline, 1,5-diazabicyclo[4.3.0]non-5-ene, 1,4-diazabicyclo[2.2.2]octane, 1,8-diazabicyclo[5.4.0]undec-7-ene, or the like.

[0201] Suitable acid may include an organic acid [e.g. formic acid, acetic acid, propionic acid, trichloroacetic acid, trifluoroacetic acid, etc] and an inorganic acid [e.g. hydrochloric acid, hydrobromic acid, sulfuric acid, hydrogen chloride, hydrogen bromide, etc].

[0202] The elimination using Lewis acid such as trihaloacetic acid [e.g. trichloroacetic acid, trifluoroacetic acid, etc], aluminium halide [e.g. aluminium chloride, etc] or the like is preferably carried out in the presence of cation trapping agents [e.g. anisole, phenol, etc].

[0203] The reaction is usually carried out in a solvent such as water, an alcohol [e.g. methanol, ethanol, etc], nitromethane, methylene chloride, tetrahydrofuran, a mixture thereof or any other solvent which does not adversely influence the reaction. A liquid base or acid can be also used as the solvent. The reaction temperature is not critical and the reaction is usually carried out under cooling to warming.

[0204] The reduction method applicable for the elimination reaction may include chemical reduction and catalytic reduction.

[0205] Suitable reducing agents to be used in chemical reduction are a combination of metal [e.g. tin, zinc, iron, etc] or metallic compound [e.g. chromium chloride, chromium acetate, etc] and an organic or inorganic acid [e.g. formic acid, acetic acid, propionic acid, trifluoroacetic acid, p-toluenesulfonic acid, hydrochloric acid, hydrobromic acid, etc].

[0206] Suitable catalysts to be used in catalytic reduction are conventional ones such as platinum catalysts [e.g. platinum plate, spongy platinum, platinum black, colloidal platinum, platinum oxide, platinum wire, etc], palladium catalysts [e.g. spongy palladium, palladium black, palladium oxide, palladium on carbon, colloidal palladium, palladium on barium sulfate, palladium on barium carbonate, etc], nickel catalysts [e.g. reduced nickel, nickel oxide, Raney nickel, etc], cobalt catalysts [e.g. reduced cobalt, Raney cobalt, etc], iron catalysts [e.g. reduced iron, Raney iron, etc], copper catalysts [e.g. reduced copper, Raney copper, Ullman copper, etc] and the like.

[0207] The reduction is usually carried out in a conventional solvent which does not adversely influence the reaction such as water, methanol, ethanol, propanol, dioxane, N,N-dimethylformamide, or a mixture thereof. Additionally, in case that the above-mentioned acids to be used in chemical reduction are in liquid, they can also be used as a solvent. Further, a suitable solvent to be used in catalytic reduction may be the above-mentioned solvent, and other conventional solvent such as diethyl ether, dioxane, tetrahydrofuran, etc, or a mixture thereof.

[0208] The reaction temperature of this reduction is not critical and the reaction is usually carried out under cooling to warming.

[0209] It is to be noted the compound (I) or a salt thereof can be prepared by the methods other than aforesaid Processes 1 to 3, for examples, by the other methods disclosed in Examples in this specification.

[0210] Biological Property of the Compound (I)

[0211] In order to show the utility of the object compound (I), the biological test data on phospholipase A2 assay of the representative compound of the compound (I) is shown in the following.

[0212] Test on the inhibitory effect against phospholipase A2 (PLA2)

[0213] [I] Test Method

[0214] PLA2 activity was assayed with a fluorescent phospholipid analogue [1-palmitoyl-2-(10-pyrenyldecanoyl)-sn-glycero-3-monomethylphosphatidic acid(10-pyrene PA-monomethyl ester)] as a substrate, according to Radvanyi et al. (1989) with several modifications. Briefly, the reaction medium was prepared by sequential addition of 1160 μl of 50 mM Tris-HCl (pH 7.4) buffer containing 100 mM NaCl and 1 mM EDTA, 10 μl of 120 μM 10-pyrene PA-monomethyl ester in ethanol, 10 μl of drug sample in methanol and 10 μl of 1.2 μg/ml human recombinant PLA2 group II enzyme. The enzymatic reaction was then initiated with 10 μl of 0.84 M CaCl2. Following incubation at room temperature for 10 minutes, the reaction was terminated by addition of 25 μl of 1 M EDTA and 10 μl of 10 mg/ml β-cyclodextrin. Fluorescence measurements were carried out with a JASCO Corporation FP-777 spectrofluorometer. Excitation and emission wavelengths were 345 nm and 380 nm, respectively. All data are the average of at least duplicate determinations corrected for the spontaneous fluorescence of the reaction medium. Data were expressed as percent inhibition.

[0215] Reference

[0216] F. Radvanyi, L. Jordan, F. Russo-Marie and C. Bon: A sensitive and continuous fluorometric assay for phospholipase A2 using pyrene-labeled phospholipids in the presence of serum albumin. [Anal. Biochem. 177 pages 103-109 (1989)]

[0217] [II] Test Compound

[0218] (3S)-3-[(2S)-2-(3-Benzylnaphthalen-2-ylcarbonylamino)-5-carboxypentanoyl]oxy-4-(2-naphthyl)butanamide (the compound of Example 24)

[0219] [III] Test Result

1Percent inhibitiondose (M)inhibition (%)1 × 10−6100

[0220] The pharmaceutical composition of the present invention can be used in the form of a pharmaceutical preparation, for example, in solid, semisolid or liquid form, which contains the object compound (I) or a pharmaceutically acceptable salt thereof, as an active ingredient in admixture with an organic or inorganic carrier or excipient suitable for rectal, pulmonary (nasal or buccal inhalation), nasal, ocular, external (topical), oral or parenteral (including subcutaneous, intravenous, intramuscular and intra-articular) administrations or insufflation.

[0221] The active ingredient may be compounded, for example, with the usual non-toxic, pharmaceutically acceptable carriers for tablets, pellets, troches, capsules, suppositories, creams, ointments, aerosols, powders for insufflation, solutions, emulsions, suspensions, and any other form suitable for use. And, if necessary, in addition, auxiliary, stabilizing, thickening and coloring agents and perfumes may be used.

[0222] The object compound (I) or a pharmaceutically acceptable salt thereof is/are included in the pharmaceutical composition in an amount sufficient to produce the desired effect upon the process or condition of the diseases.

[0223] The pharmaceutical composition of the present invention can be manufactured by the conventional method in this field of the art. If necessary, the technique generally used in this field of the art for improving the bioavailability of a drug can be applied to the pharmaceutical composition of the present invention.

[0224] For applying the composition to a human being or an animal, it is preferable to apply it by intravenous (including i.v. infusion), intramuscular, pulmonary, or oral administration, or insufflation including aerosols from metered dose inhalator, nebulizer or dry powder inhalator.

[0225] While the dosage of therapeutically effective amount of the object compound (I) varies from and also depends upon the age and condition of each individual patient to be treated, in the case of intravenous administration, a daily dose of 0.001-100 mg of the object compound (I) per kg weight of a human being or an animal, in the case of intramuscular administration, a daily dose of 0.001-100 mg of the object compound (I) per kg weight of a human being or an animal, in the case of oral administration, a daily dose of 0.001-200 mg of the object compound (I) per kg weight of a human being or an animal is generally given for the prevention and/or the treatment of aforesaid diseases in a human being or an animal.

[0226] The following preparations and examples are given only for the purpose of illustrating the present invention in more detail.

[0227] Preparation 1

[0228]

2
-(6-Ethylnaphthalen-2-yl)acetic acid (1.88 g) was dissolved in thionyl chloride (9.6 ml) and the mixture was stirred at room temperature for 1 hour and then the mixture was concentrated in vacuo. The residue was dissolved in methylene chloride (20 ml) and the solution was added dropwise to a stirring solution of Meldrum's acid (1.26 g) and pyridine (1.56 ml) in methylene chloride (20 ml) at room temperature. After being stirred overnight at the same temperature, the mixture was washed with 1N hydrochloric acid and the organic layer was dried over magnesium sulfate and concentrated in vacuo. The residue was dissolved in methanol (40 ml) and refluxed for 2 hours and the mixture was concentrated in vacuo. The residue was dissolved in ethyl acetate and the solution was washed with 1N hydrochloric acid, water, aqueous sodium bicarbonate and brine, successively. The organic layer was dried over magnesium sulfate and concentrated in vacuo. The residue was purified by silica gel column chromatography (ethyl acetate : hexane 1:9, as an eluent) to give methyl 4-(6-ethyl-2-naphthyl)-3-oxobutanoate (0.61 g).

[0229] NMR (CDCl3, δ): 7.74 (2H, dd, J=8.0, 7.5 Hz), 7.64 (1H, s), 7.60 (1H, s), 7.36 (1H, d, J=8.0 Hz), 7.28 (1H, d, J=8.0 Hz), 3.96 (2H, s), 3.70 (3H, s), 3.46 (2H, s), 2.80 (2H, q, J=7.5 Hz), 1.30 (3H, t, J=7.5 Hz)

[0230] ESI−MS: 271 [M+H]

[0231] Preparation 2

[0232] Methyl 4-(2-naphthyl)-3-oxobutanoate was obtained according to a similar manner to that of Preparation 1.

[0233] NMR (CDCl3, δ): 7.82 (3H, m), 7.70 (1H, s), 7.48 (2H, m), 7.32 (1H, m), 4.00 (2H, s), 3.70 (3H, s), 3.48 (2H, s)

[0234] Preparation 3

[0235] Methyl 4-(6-ethyl-2-naphthyl)-3-oxobutanoate (0.60 g), D-camphorsulfonic acid (4.1 mg) and [Ru2C12((S)-BINAP)2]NEt3(di[(S)-2,2T-bis(diphenylphosphino)-1,1′-binaphthyl]-dichlorodirhutenium triethylamine complex) (4.5 mg) in methanol (6 ml) was hydrogenated at 65° C. under hydrogen atmosphere under 10 atmosphere for 5 hours. After cooling at room temperature, the solvent was removed in vacuo and the residue was purified by silica gel column chromatography (ethyl acetate:hexane=1:4, as an eluent) to give methyl (3S)-4-(6-ethyl-2-naphthyl)-3-hydroxybutanoate (0.55 g).

[0236] NMR (CDCl3, δ): 7.72 (2H, dd, J=8.0, 6.0 Hz), 7.64 (1H, s), 7.60 (1H, s), 7.32 (2H, t, J=7.5 Hz), 4.36 (1H, br s), 3.70 (3H, s), 2.96 (2H, ABX), 2.80 (2H, q, J=7.5 Hz), 2.52 (2H, ABX), 1.30 (3H, t, J=7.5 Hz)

[0237] ESI−MS: 273 [M+H]

[0238] The following compounds (Preparations 4 and 5) were obtained according to a similar manner to that of Preparation 3.

[0239] Preparation 4

[0240] Methyl (3R)-3-hydroxy-4-(2-naphthyl)butanoate

[0241] NMR (CDCl3, δ): 7.74-7.84 (3H, m), 7.66 (1H, s), 7.4-7.5 (2H, m), 7.34 (1H, d, J=8.0 Hz), 4.36 (1H, m), 3.70 (3H, s), 2.98 (2H, ABX), 2.87 (1H, d, J=5.0 Hz), 2.52 (2H, ABX)

[0242] ESI−MS: 245 [M+H]

[0243] Preparation 5

[0244] Methyl (3S)-3-hydroxy-4-(2-naphthyl)butanoate

[0245] NMR (CDCl3, δ): 7.74-7.84 (3H, m), 7.66 (1H, s), 7.4-7.5 (2H, m), 7.34 (1H, d, J=8.0 Hz), 4.36 (1H, m), 3.70 (3H, s), 2.98 (2H, ABX), 2.87 (1H, d, J=5.0 Hz), 2.52 (2H, ABX)

[0246] ESI−MS: 245 [M+H]

[0247] Preparation 6

[0248] To a solution of methyl (3R)-3-hydroxy-4-(2-naphthyl)butanoate (3.02 g) and methanesulfonyl chloride (2.12 g) in methylene chloride (60 ml) was added triethylamine (2.5 g) at 0° C. After being stirred at room temperature for 1.5 hours, the mixture was diluted with ethyl ether and the mixture was washed with 0.5N hydrochloric acid, water, aqueous sodium bicarbonate and brine, successively. The organic layer was dried over magnesium sulfate and concentrated in vacuo. The residue was dissolved in DMF (50 ml) and sodium azide (2.02 g) was added to this solution. After being stirred at 60° C. for 1 hour, the mixture was diluted with ethyl ether and the mixture was washed with water and brine. The organic layer was dried with magnesium sulfate and concentrated in vacuo. The residue was dissolved in methanol (100 ml) and hydrogenated at room temperature under hydrogen atmosphere under atmospheric pressure for 6 hours. The catalyst was filtered off and the solvent was removed under reduced pressure. The residue was dissolved in 4N hydrogen chloride in ethyl acetate (50 ml) at room temperature. After being stirred at the same temperature for 10 minutes, the mixture was concentrated in vacuo and the residue was triturated with ethyl ether to give methyl (3S)-3-amino-4-(2-naphthyl)butanoate hydrochloride (0.44 g).

[0249] NMR (CDCl3-CD3OD, δ): 7.74-7.84 (3H, m), 7.72 (1H, s), 7.42-7.52 (2H, m), 7.34 (1H, d, J=8.0 Hz), 3.90 (1H, m), 3.46 (1H, dd, J=15.0, 5.0 Hz), 3.12 (1H, dd, J=15.0, 10.0 Hz), 2.80 (2H, ABX)

[0250] Preparation 7

[0251] Methyl(3S)-4-(6-ethyl-2-naphthyl)-3-hydroxybutanoate (0.54 g) was dissolved in 15N ammonia in methanol (5 ml) at room temperature and the mixture was allowed to stand for six days. The solvent was evaporated in vacuo and the residue was triturated with isopropyl ether to give (3S)-4-(6-ethyl-2-naphthyl)-3-hydroxybutanamide (0.49 g).

[0252] NMR (DMSO-d6, δ): 7.76 (2H, dd, J=8.0, 4.0 Hz), 7.64 (2H, s), 7.34 (2H, d, J=8.0 Hz), 7.28 (1H, br s), 6.80 (1H, br s), 4.86 (1H, d, J=4.0 Hz), 4.14 (1H, m), 2.80 (2H, d, J=7-5 Hz), 2.74 (2H, q, J=7.5 Hz), 2.16 (2H, d, J=7.5 Hz), 1.26 (3H, t, J=7.5 Hz)

[0253] The following compounds (Preparations 8 and 9) were obtained according to a similar manner to that of Preparation 7.

[0254] Preparation 8

[0255] (3S)-3-Amino-4-(2-naphthyl)butanamide

[0256] NMR (CDCl3, δ): 7.8 (4H, m), 7.64 (1H, s), 7.44 (3H, m), 7.30 (1H, d, J=10.0 Hz), 3.5 (1H, m), 3.00 (1H, dd, J=12.0, 7.5 Hz), 2.76 (1H, dd, J=12.0, 10.0 Hz), 2.48 (1H, dd, J=15.0, 5.0 Hz), 2.25 (1H, dd, J=15.0, 10.0 Hz)

[0257] ESI−MS: 229 [M+H]

[0258] Preparation 9

[0259] (3S)-3-Hydroxy-4-(2-naphthyl)butanamide

[0260] NMR (DMSO-d6, δ): 7.78-7.90 (3H, m), 7.70 (1H, s), 7.34-7.52 (3H, m), 7.30 (1H, br s), 6.82 (1H, br s), 4.90 (1H, d, J=5.0 Hz), 4.14 (1H, m), 2.74-2.90 (2H, m), 2.15 (2H, d, J=5.0 Hz)

[0261] Preparation 10

[0262] A mixture of 2-acetyl-6-ethylnaphthalene (9.09 g) and morpholine (6 ml) and sulfur (2.2 g) was heated at 120° C. for one hour and then refluxed for ten hours. The mixture was cooled to room temperature and diluted with ethyl acetate. The mixture was washed with 1N hydrochloric acid, aqueous sodium bicarbonate and brine, successively. The organic layer was dried over magnesium sulfate and concentrated in vacuo. The residue was purified by silica gel column chromatography (ethyl acetate:hexane=1:1, as an eluent) to give 6-ethyl-2-naphthylacetothiomorpholide. The thiomorpholide thus obtained was dissolved in acetic acid (20 ml), concentrated sulfuric acid (3 ml) and water (4.5 ml) and the mixture was refluxed for five hours. The mixture was cooled to room temperature and poured into ethyl acetate and the mixture was washed with water and brine, successively. The organic layer was dried over magnesium sulfate and concentrated in vacuo. The residue was triturated with isopropyl ether to give 2-(6-ethylnaphthalen-2-yl)acetic acid (1.90 g)

[0263] NMR (CDCl3, δ): 7.74 (2H, t, J=7.5 Hz), 7.70 (1H, s), 7.60 (1H, s), 7.36 (2H, t, J=7.5 Hz), 3.80 (2H, s), 2.80 (2H, q, J=7.5 Hz), 1.30 (3H, t, J=7.5 Hz)

[0264] ESI−MS: 213 [M−H]

[0265] Preparation 11

[0266] To an ice-cooled suspension of sodium hydride (60% in oil dispersion, 6.75 g) in tetrahydrofuran (50 ml) was added 5-hydroxy-1-pentene (10.1 g) in tetrahydrofuran (50 ml). After stirring for 30 minutes, 1-bromononane (31.1 g) in tetrahydrofuran (100 ml) was added. This mixture was refluxed overnight, poured into saturated aqueous ammonium chloride (300 ml), and extracted with diethyl ether (300 ml). The organic phase was separated, washed with water (300 ml) and brine (200 ml), dried over magnesium sulfate, and evaporated to dryness. The residue was chromatographed on a silica gel (1000 cc), eluting with ethyl acetate in n-hexane (0-10%) to give 4-pentenyl nonyl ether (17.2 g).

[0267] NMR (CDCl3, δ): 5.83 (1H, m), 4.92-5.07 (2H, m), 3.35-3.45 (4H, m), 2.12 (2H, m), 1.48-1.73 (4H, m), 1.17-1.39 (12H, m), 0.87 (3H, t, J=7 Hz)

[0268] Preparation 12

[0269] A solution of 4-pentenyl nonyl ether (7.0 g) in a mixture of methanol (150 ml) and dichloromethane (50 ml) was cooled to −78° C. Ozone was passed through this solution keeping temperature below −60° C. until the color turned to be light blue. Then, methylsulfide (12.1 ml) was added dropwise, and this solution was warmed to room temperature over 3 hours. The resulting solution was concentrated and partitioned between diethyl ether (150 ml) and water (100 ml). The ethereal solution was dried over magnesium sulfate and evaporated to dryness to give a crude product of 1,1-dimethoxy-4-nonyloxybutane (7.76 g).

[0270] NMR (CDCl3, δ): 4.38 (1H, t, J=5 Hz), 3.42 (2H, t, J=6 Hz), 3.38 (2H, t, J=6 Hz), 3.32 (6H, s), 1.37-1.73 (6H, m), 1.17-1.41 (12H, m), 0.88 (3H, t, J=7 Hz)

[0271] Preparation 13

[0272] To an ice-cooled solution of 1,1-dimethoxy-4-nonyloxybutane (3.00 g) in acetone (150 ml) was added 2N Jones' reagent drop by drop. After stirring for 1 hour at 4° C., isopropyl alcohol was added until the orange color disappeared. This solution was neutralized with 1N aqueous sodium hydroxide, concentrated in vacuo, acidified with 1N hydrochloric acid, saturated with ammonium chloride, and extracted with ethyl acetate (50 ml). The organic phase was washed with brine, dried over magnesium sulfate, and evaporated to dryness to give 4-nonyloxybutyric acid (2.68 g).

[0273] NMR (CDCl3, δ): 3.35-3.52 (4H, m), 2.48 (2H, t, J=7 Hz), 1.90 (2H, m), 1.47-1.66 (2H, m), 1.16-1.41 (12H, m), 0.88 (3H, t, J=7 Hz)

[0274] Preparation 14

[0275] To a solution of 4-nonyloxybutyric acid (2.66 g) and a drop of dimethylformamide in dichioromethane (50 ml) was added oxalyl chloride (1.11 ml). This solution was stirred for 1 hour and concentrated under reduced pressure. The residue was dissolved in dichoromethane (10 ml), and added to a solution of Meldrum's acid (1.66 q) and pyridine (1.87 ml) in dichioromethane (25 ml) at 4° C. This solution was stirred at room temperature overnight. The resulting mixture was washed with 10% hydrochloric acid (50 ml×3) and water, dried over magnesium sulfate, and concentrated in vacuo. The residue was dissolved in methanol, and refluxed for 3 hours. Then, the mixture was evaporated in dryness, and chromatographed on a silica gel (150 cc) eluting with 10% ethyl acetate in n-hexane to give methyl 6-nonyloxy-3-oxohexanoate (0.96 g).

[0276] NMR (CDCl3, δ): 3.74 (3H, s), 3.47 (2H, s), 3.41 (2H, t, J=6 Hz), 3.36 (2H, t, J=6 Hz), 2.63 (2H, t, J=7 Hz), 1.8 m6 (2H, m) 1.47-1.61 (2H, m), 1.18-1.40 (12H, m), 0.88 (3H, t, J=7 Hz)

[0277] Preparation 15

[0278] Methyl (3S)-3-hydroxy-6-nonyloxyhexanoate was obtained according to a similar manner to that of Preparation 3.

[0279] NMR (CDCl3, δ): 4.04 (1H, m), 3.71 (3H, s), 3.49 (1H, d, J=3 Hz), 3.45 (2H, t, J=6 Hz), 3.41 (2H, t, J=7 Hz), 2.41-2.53 (2H, m), 1.46-1.80 (6H, m), 1.17-1.38 (12H, m), 0.88 (3H, t, J=7 Hz)

[0280] Preparation 16

[0281] (3S)-3-Hydroxy-6-nonyloxyhexanamide was obtained according to a similar manner to that of Preparation 7.

[0282] NMR (CDCl3, δ): 6.37 (1H, br s), 5.33 (1H, br s), 4.39 (1H, d, J=2 Hz), 3.99 (1H, m), 3.40-3.53 (4H, m), 2.30-2.44 (2H, m), 1.49-1.82 (6H, m), 1.18-1.41 (12H, m), 0.87 (3H, t, J=7 Hz)

[0283] Preparation 17

[0284] To an ice-cooled solution of methyl (3R)-3-hydroxyhexadecanoate (5.35 g) and triethylamine (5.21 ml) in dichloromethane (50 ml) was added methanesulfonyl chloride (2.17 ml). After stirring in an ice-water bath for 35 minutes, this solution was poured into a mixture of ethyl acetate (150 ml) and 1N hydrochloric acid (150 ml). The organic phase was separated and washed with 1N hydrochloric acid (100 ml), saturated aqueous sodium bicarbonate (100 ml), and brine (100 ml). Dryness over magnesium sulfate and evaporation gave methyl (3R)-3-methanesulfonyloxy-hexadecanoate (6.77 g).

[0285] NMR (CDCL3, δ): 5.04 (1H, m), 3.72 (3H, s), 3.02 (3H, m), 2.78 (1H, dd, J=16, 8 Hz), 2.65 (1H, dd, J=16, 5 Hz), 1.77 (2H, m), 1.15-1.55 (22H, m), 0.88 (3H, t, J=7 Hz)

[0286] Preparation 18

[0287] A solution of methyl (3R)-3-methanesulfonyloxyhexadecanoate (6.77 g) and sodium azide (2.33 g) in dimethylformamide (60 ml) was heated to 60° C. for 40 minutes. This solution was poured into a mixture of ethyl acetate (300 ml) and water (500 ml). The organic phase was separated and washed with water (500 ml) and brine (300 ml). The resulting solution was dried over magnesium sulfate and evaporated to dryness to give methyl (3S)-3-azidohexadecanoate and some by-products. This crude product (5.0 g) was used in the next step without any further purification.

[0288] Preparation 19

[0289] Methyl (3S)-3-azidohexadecanoate (5.0 g) in methanol (25 ml) was hydrogenated over 10% palladium on carbon (0.50 g) under atmospheric pressure of hydrogen for 4 hours at room temperature. Then, the catalyst was filtered off with celite and the filtrate was concentrated under reduced pressure. The residue was dissolved with 4N hydrogen chloride in ethyl acetate (20 ml), evaporated, and triturated with diisopropyl ether (20 ml) to give methyl (3S)-3-aminohexadecanoate hydrochloride (930 mg).

[0290] NMR (CDCl3, δ): 3.75 (3H, s), 3.60 (1H, m), 2.74-2.93 (2H, m), 1.57-1.98 (4H, m), 1.14-1.51 (20H, m), 0.87 (3H, t, J=7 Hz)

[0291] Preparation 20

[0292] To a suspension of methyl (3S)-3-aminohexadecanoate hydrochloride (890 mg) in water (1.8 ml) was added formalin (0.67 ml) and cyclopentadiene (1.14 ml) successively. The mixture was sonicated for 15 minutes, and stirred for 20 hours. The resulting mixture was washed with n-hexane, made basic with saturated sodium bicarbonate, and extracted with chloroform (×3). The combined organic phase was dried over magnesium sulfate, and concentrated under reduced pressure. To the residue in dichloromethane (12 ml) and trifluoroacetic acid (12 ml) was added triethylsilane (1.32 ml). This mixture was stirred overnight, and evaporated. This residue was dissolved in ethyl acetate (30 ml), washed with saturated aqueous sodium bicarbonate (20 ml), and dried over magnesium sulfate. After evaporation, the residue was purified on a silica gel (20 cc) to give methyl (3S)-3-(methylamino)hexadecanoate (686 mg).

[0293] NMR (CDCl3, δ): 3.69 (3H, s), 2.98 (1H, m), 2.89 (1H, br s), 2.50 (2H, m), 2.45 (3H, s), 1.18-1.63 (24H, m), 0.87 (3H, t, J=7 Hz)

[0294] Preparation 21

[0295] Methyl 4-(3-benzo[b]furanyl)-3-oxobutanoate was obtained according to a similar manner to that of Preparation 1.

[0296] NMR (CDCl3, δ): 7.64 (1H, s), 7.43-7.57 (2H, m), 7.21-7.36 (2H, m), 3.92 (2H, s), 3.71 (3H, s), 3.52 (2H, s)

[0297] Preparation 22

[0298] Methyl (3S)-4-(3-benzo[b]furanyl)-3-hydroxybutanoate was obtained according to a similar manner to that of Preparation 3.

[0299] NMR (CDCl3, δ): 7.58 (1H, d, J=7 Hz), 7.52 (1H, s), 7.47 (1H, d, J=7 Hz), 7.19-7.34 (2H, m), 4.39 (1H, m), 3.68 (3H, s), 2.80-3.08 (3H, m), 2.42-2.65 (2H, m)

[0300] Preparation 23

[0301] To an ice-cooled solution of methyl (3S)-4-(3-benzo[b]furanyl)-3-hydroxybutanoate (250 mg) in methanol (2 ml) was added 1N aqueous sodium hydroxide (1.1 ml). This solution was stirred at room temperature overnight. Then it was diluted with water (20 ml), washed with diethyl ether (10 ml), acidified with 1N hydrochloric acid (1.4 ml), extracted with ethyl acetate (10 ml×3), and dried over magnesium sulfate. After evaporation, the residue was dissolved in dimethylformamide (2 ml). To this solution, HOBt (1-hydroxybenzotriazole) (136 mg), WSCD.HCl [1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride] (193 mg) was added successively. After 30 minutes, 28% ammonium hydroxide (91 μl) was added, and the mixture was stirred overnight. Then, the resulting mixture was diluted with 1N hydrochloric acid (20 ml) and extracted with ethyl acetate (20 ml). The organic phase was washed with 1N hydrochloric acid (20 ml), saturated aqueous sodium bicarbonate (20 ml) and brine. Dried over magnesium sulfate, evaporated to dryness, and chromatographed on a silica gel (20 cc) to give (3S)-4-(3-benzo[b]furanyl)-3-hydroxybutanamide (110 mg).

[0302] NMR (DMSO-d6, δ): 7.76 (1H, s), 7.65 (1H, d, J=7 Hz), 7.53 (1H, d, J=8 Hz), 7.19-7.40 (3H, m), 6.82 (1H, br s), 4.94 (1H, d, J=6 Hz), 4.17 (1H, m), 2.79 (1H, dd, J=15, 5 Hz), 2.70 (1H, dd, J=15, 7 Hz), 2.11 (2H, d, J=7 Hz)

[0303] Preparation 24

[0304] To a suspension of methyl triphenylphosphoranylidene-acetate (2.45 g) in tetrahydrofuran (20 ml) was added 2-carboxybenzaldehyde (1.0 g) at 4° C. The resulting clear solution was stirred at room temperature for 30 minutes, and concentrated under reduced pressure. The residue was diluted with chloroform (20 ml) and extracted with saturated aqueous sodium bicarbonate (20 ml×2). The combined aqueous phase was washed with diethyl ether (20 ml), acidified with 1N hydrochloric acid (pH 5˜6), and extracted with ethyl acetate (20 ml×2). The combined organic phase was washed with water (20 ml), brine (20 ml), dried over magnesium sulfate, and evaporated to dryness. The residue was triturated with diisopropyl ether to give methyl 2-carboxycinnamate (350 mg).

[0305] NMR (CDCl3, δ): 8.55 (1H, d, J=16 Hz), 8.12 (1H, d, J=8 Hz), 7.56-7.67 (2H, m), 7.49 (1H, m), 6.34 (1H, d, J=16 Hz), 3.83 (3H, s)

[0306] Preparation 25

[0307] t-Butyl 2-carboxycinnamate was obtained according to a similar manner to that of Preparation 24.

[0308] NMR (CDCl3, δ): 8.47 (1H, d, J=16 Hz), 8.10 (1H, d, J=8 Hz), 7.54-7.67 (2H, m), 7.47 (1H, m), 6.27 (1H, d, J=16 Hz), 1.55 (9H, s)

[0309] Preparation 26

[0310] A solution of methyl 2-carboxycinnamate (100 mg), palladium(II) acetate (5 mg) and potassium formate (108 mg) in dimethylformamide (1 ml) was stirred at 60° C. under nitrogen flow. The mixture was diluted with saturated aqueous ammonium chloride (20 ml), and extracted with ethyl acetate (20 ml). The organic phase was washed with water (20 ml) and brine (20 ml), dried over magnesium sulfate, and evaporated to dryness. The residue was triturated with diisopropyl ether to give methyl 3-(2-carboxyphenyl)propionate (82 mg).

[0311] NMR (CDCl3, δ): 8.06 (1H, m), 7.49 (1H, m), 7.33 (3H, m), 3.34 (2H, t, J=8 Hz), 2.72 (2H, t, J=8 Hz)

[0312] Preparation 27

[0313] t-Butyl 3-(2-carboxyphenyl)propionate was obtained according to a similar manner to that of Preparation 26.

[0314] NMR (CDCl3, δ): 8.04 (1H, d, J=7 Hz), 7.47 (1H, t, J=7 Hz), 7.27 (2H, m), 3.29 (2H, t, J=7 Hz), 2.53 (2H, t, J=7 Hz), 1.42 (9H, s)

[0315] Preparation 28

[0316]

3
-(2-Carboxyphenyl)propionamide was obtained according to a similar manner to that of Preparation 7.

[0317] NMR (DMSO-d6, δ): 7.77 (1H, d, J=8 Hz), 7.45 (1H, dd, J=7, 6 Hz), 7.17-7.38 (3H, m), 6.74 (1H, br s), 3.11 (2H, t, J=8 Hz), 2.37 (2H, t, J=8 Hz)

[0318] Preparation 29

[0319] In a three-necked flask, under nitrogen flow, was placed magnesium turnings (1.26 g). In this flask, was added a solution of 1-bromohexane (8.59 g) in tetrahydrofuran (100 ml) dropwise. When the addition was completed, the whole was stirred for 30 minutes. The resulting mixture was added to an ice-cooled mixture of 4-bromobenzyl bromide (10.0 g) in tetrahydrofuran (100 ml) and 0.1M dilithium tetrachlorocuprate in tetrahydrofuran (10 ml). This mixture was stirred at 4° C. for 1.5 hours and at room temperature overnight. Then, it was poured into a mixture of ice and 1N hydrochloric acid (300 ml), and extracted with diethyl ether (300 ml). The etheral solution was washed with water (300 ml), saturated aqueous sodium bicarbonate (150 ml), and brine, dried over magnesium sulfate, and concentrated under reduced pressure. The residue was purified on a silica gel (200 cc) eluting with n-hexane to give 1-bromo-4-heptylbenzene (7.61 g).

[0320] NMR (CDCl3, δ): 7.38 (2H, d, J=8 Hz), 7.04 (2H, d, J=8 Hz), 2.55 (2H, dd, J=7, 8 Hz), 1.48-1.67 (2H, m), 1.17-1.38 (8H, m), 0.88 (3H, t, J=7 Hz)

[0321] Preparation 30

[0322] 1-Allyl-4-heptylbenzene was obtained according to a similar manner to that of Preparation 29.

[0323] NMR (CDCl3, δ): 7.12 (2H, d, J=8 Hz), 7.08 (2H, d, J=8 Hz), 5.97 (1H, m), 5.02-5.13 (2H, m), 3.36 (2H, d, J=7 Hz), 2.58 (2H, t, J=8 Hz), 1.60 (2H, m), 1.19-1.40 (8H, m), 0.88 (3H, t, J=7 Hz)

[0324] Preparation 31

[0325] To a mixture of 1-allyl-4-heptylbenzene (2.4 g), acetone (40 ml) and water (40 ml) was added sodium metaperiodate (11.9 g) and potassium permanganate (70 mg). This mixture was stirred at room temperature overnight. Then, the mixture was filtered and the filtrate was concentrated under reduced pressure. The resulting aqueous solution was extracted with ethyl acetate (60 ml), and the organic phase was washed with water (60 ml) and brine (30 ml). This solution was dried over magnesium sulfate, and evaporated to dryness. The residue was purified on a silica gel (40 cc) eluting with 0%-5% methanol in chloroform to give 1-allyl-4-heptylbenzene (1.82 g) and 2-(4-heptylphenyl)acetic acid (300 mg).

[0326] NMR (CDCl3, δ): 7.11-7.23 (4H, m), 3.62. (2H, s), 2.57 (2H, dd, J=8, 7 Hz), 1.59 (2H, m), 1.18-1.42 (8H, m), 0.87 (3H, t, J=7 Hz)

[0327] Preparation 32

[0328] Methyl (3S)-4-(4-heptylphenyl)-3-hydroxybutanoate was obtained according to a similar manner to that of Preparation 3.

[0329] NMR (CDCl3, δ): 7.12 (4H, s), 4.25 (1H, m), 3.69 (3H, s), 2.70-2.88 (3H, m), 2.39-2.61 (4H, m), 1.59 (2H, m), 1.20-1.39 (8H, m), 0.87 (3H, t, J=7 Hz)

[0330] Preparation 33

[0331] Methyl 4-(4-heptylphenyl)-3-oxobutanoate was obtained according to a similar manner to that of Preparation 1.

[0332] NMR (CDCl3, δ): 7.15 (2H, d, J=8 Hz), 7.10 (2H, d, J=8 Hz), 3.78 (2H, s), 3.70 (3H, s), 3.45 (2H, s), 2.58 (2H, m), 1.59 (2H, m), 1.20-1.40 (8H, m), 0.88 (3H, t, J=7 Hz)

[0333] Preparation 34

[0334] (3S)-4-(4-Heptylphenyl)-3-hydroxybutanamide was obtained according to a similar manner to that of Preparation 7.

[0335] NMR (CDCl3, δ): 7.12 (4H, s), 5.88 (1H, br s), 5.41 (1H, br s), 4.23 (1H, m), 3.24 (1H, d, J=3 Hz), 2.84 (1H, dd, J=14, 7 Hz), 2.76 (1H, dd, J=14, 7 Hz), 2.57 (2H, dd, J=8, 7 Hz), 2.44 (1H, dd, J=15, 3 Hz), 2.33 (1H, dd, J=15, 8 Hz), 1.51-1.67 (2H, m), 1.18-1.40 (8H, m), 0.88 (3H, t, J=7 Hz)

EXAMPLE 1

[0336] (2S)-5-Benzyloxycarbonyl-2-(tert-butoxycarbonylamino)-pentanoic acid dicyclohexylammonium salt (1.00 g) was suspended with ethyl acetate and the mixture was washed with 0.5N sulfuric acid, water and brine, successively. The organic layer was dried over magnesium sulfate and concentrated in vacuo. The residue was dissolved in methylene chloride (10 ml) and to this was added DMAP (N,N-dimethylaminopyridine) (469 mg), PyBOP (benzotriazole-1-yloxy-tris-pyrrolidinophosphonium hexafluorophosphate) (1.07 g) and (3S)-3-hydroxy-4-(2-naphthyl)butanamide (430 mg) at room temperature. After being stirred overnight at the same temperature, the mixture was diluted with ethyl acetate and washed with 1N hydrochloric acid, aqueous ammonium chloride, aqueous sodium bicarbonate and brine, successively. The organic layer was dried over magnesium sulfate and concentrated in vacuo. The residue was purified by silica gel column chromatography (2% methanol in chloroform, as an eluent) to give (3S)-3-[(2S)-5-benzyloxycarbonyl-2-(tert-butoxycarbonylamino)pentanoyl]oxy-4-(2-naphthyl)butanamide (0.96 g).

[0337] NMR (CDCl3, δ): 7.80 (3H, m), 7.66 (1H, s), 7.44 (2H, m), 7.34 (9H, m), 5.86 (1H, br s), 5.54 (1H, m), 5.30 (1H, br s), 5.06 (2H, s), 5.00 (1H, d, J=10 Hz), 4.18 (1H, m), 3.14 (2H, dd, J=8.0, 3.0 Hz), 2.46 (2H, m), 2.22 (2H, m), 1.5-1.6 (4H, m), 1.42 (9H, s)

[0338] The following compounds (Examples 2 to 5) were obtained according to a similar manner to that of Example 1.

EXAMPLE 2

[0339] (3S)-4-(3-Benzo[b]furanyl)-3-[(2S)-5-benzyloxycarbonyl-2-(tert-butoxycarbonylamino)pentanoyl]oxybutanamide

[0340] NMR (CDCl3, δ): 7.64 (1H, m), 7.53 (1H, s), 7.48 (1H, d, J=8 Hz) 7.22-7.41 (7H, m), 5.82 (1H, br s), 5.64 (1H, m), 5.27 (1H, br s), 5.10 (2H, s), 4.97 (1H, m), 4.22 (1H, m), 3.10 (2H, d, J=6 Hz), 2.50 (2H, d, J=7 Hz), 2.35 (2H, m), 1.62-1.84 (4H, m), 1.44 (9H, s)

EXAMPLE 3

[0341] (3S)-3-[(2S)-5-Benzyloxycarbonyl-2-(tert-butoxycarbonylamino)pentanoyl]oxy-4-(4-heptylphenyl)-butanamide

[0342] NMR (CDCl3, δ): 7.30-7.39 (5H, m), 7.09 (4H, s), 5.82 (1H, br s), 5.43 (1H, m), 5.26 (1H, br s), 5.10 (2H, s), 5.01 (2H, s), 4.22 (1H, m), 2.97 (1H, dd, J=14, 7 Hz), 2.89 (1H, dd, J=14, 7 Hz), 2.55 (2H, dd, J=8, 7 Hz), 2.32-2.45 (4H, m), 1.50-1.72 (6H, m), 1.44 (9H, s), 1.21-1.36 (8H, m), 0.88 (3H, t, J=7 Hz)

EXAMPLE 4

[0343] (3S)-3-[(2S)-5-Benzyloxycarbonyl-2-tert-butoxycarbonylaminopentanoyl]oxy-6-nonyloxyhexananide

[0344] NMR (CDCl3, δ): 7.31-7.42 (5H, m), 5.90 (1H, br s), 5.25-5.34 (2H, m), 5.11 (2H, s), 5.05 (1H, d, J=8 Hz), 4.23 (1H, m), 3.40 (2H, t, J=6 Hz), 3.37 (2H, t, J=7 Hz), 2.47 (2H, d, J=6 Hz), 2.41 (2H, m), 1.49-1.92 (6H, m), 1.44 (9H, s), 1.21-1.37 (12H, m), 0.88 (3H, t, J=7 Hz)

EXAMPLE 5

[0345] (3S)-3-[N-Methyl-{(2S)-5-benzyloxycarbonyl-2-(tert-butoxycarbonylamino)pentanoyl}amino]hexadecanamide

[0346] NMR (CDCl3, δ): 7.25-7.4 (5H, m), 6.22 (1H, br s), 5.40 (1H, br s), 5.25 (1H, d, J=8.0 Hz), 5.10 (2H, s), 4.75 (1H, m), 4.52 (1H, m), 2.90 (3H, s), 2.3-2.5 (4H, m), 1.45-1.75 (6H, m), 1.43 (9H, s), 1.15-1.35 (22H, m), 0.88 (3H, t, J=7.5 Hz)

[0347] ESI−MS: 618 [M+H]

[0348] Preparation 35

[0349] (3S)-3-[(2S)-5-Benzyloxycarbonyl-2-(tert-butoxycarbonylamino)pentanoyl]oxy-4-(2-naphthyl)butanamide (0.94 g) was dissolved in 4N hydrogen chloride in ethyl acetate (50 ml) at room temperature. After being stirred for 1 hour at the same temperature, the mixture was diluted with ethyl acetate and the resulting solid was collected by filtration to give (3S)-3-[(2S)-2-amino-5-benzyloxycarbonylpentanoyl]oxy-4-(2-naphthyl)butanamide hydrochloride (0.67 g).

[0350] NMR (DMSO-d6, δ): 8.60 (3H, br s), 7.88 (3H, m), 7.80 (1H, s), 7.3-7.55 (9H, m), 6.90 (1H, br s), 5.50 (1H, m), 5.10 (2H, s), 3.94 (1H, m), 3.10 (2H, m), 2.42 (2H, d, J=7.5 Hz), 2.28 (2H, m), 1.72 (2H, m), 1.54 (2H, m)

[0351] The following compounds (Preparations 36 to 41) were obtained according to a similar manner to that of Preparation 35.

[0352] Preparation 36

[0353] (3S)-4-(3-Benzo[b]furanyl)-3-[(2S)-5-benzyloxycarbonyl-2-aminopentanoyl]oxybutanamide

[0354] NMR (DMSO-d6, δ): 8.52 (2H, br s), 7.88 (1H, s), 7.72 (1H, dd, J=6, 3 Hz), 7.56 (1H, d, J=8 Hz), 7.47 (1H, br s), 7.21-7.41 (7H, m), 6.91 (1H, br s), 5.48 (1H, m), 5.08 (2H, s), 3.98 (1H, m), 2.96-3.09 (2H, m), 2.45 (2H, d, J=6 Hz), 2.36 (2H, t, J=7 Hz), 1.47-1.89 (4H, m)

[0355] Preparation 37

[0356] (3S)-3-[(2S)-5-Benzyloxycarbonyl-2-aminopentanoyl]oxy-4-(4-heptylphenyl)butanamide hydrochloride

[0357] NMR (DMSO-d6, δ): 8.42 (2H, br s), 7.43 (1H, br s), 7.31-7.41 (5H, m), 7.11 (4H, s), 6.87 (1H, br s), 5.38 (1H, m), 5.07 (2H, s), 3.97 (1H, m), 2.87 (2H, m), 2.29-2.40 (4H, m), 1.42-1.83 (6H, m), 1.16-1.35 (8H, m), 0.85 (3H, m)

[0358] Preparation 38

[0359] (3S)-3-[(2S)-5-Benzyloxycarbonyl-2-aminopentanoyl]oxy-6-nonyloxyhexanamide hydrochloride

[0360] NMR (DMSO-6, δ): 8.42 (2H, br s), 7.45 (1H, br s), 7.28-7.41 (5H, m), 6.87 (1H, br s), 5.23 (1H, m), 5.09 (2H, s), 3.99 (2H, s), 3.25-3.36 (4H, m), 2.31-2.44 (4H, m), 1.35-1.90 (10H, m), 1.10-1.32 (12H, m), 0.85 (3H, m)

[0361] Preparation 39

[0362] (3S)-3-[(2S)-2-Amino-5-benzyloxycarbonylpentanoyl]amino-4-(2-naphthyl)butanamide hydrochloride

[0363] NMR (CDCl3, δ): 8.66 (1H, br s), 8.46 (3H, br s), 7.56 (5H, br s), 7.1-7.4 (9H, m), 4.86 (2H, s), 4.42 (1H, m), 4.06 (1H, m), 3.22 (1H, m), 2.94 (1H, rm), 2.76 (1H, m), 2.36 (1H, m), 1.16-2.0 (6H, m)

[0364] Preparation 40

[0365] (3S)-3-[N-Methyl-{(2S)-2-amino-5-benzyloxycarbonylpentanoyl}amino]hexadecanamide hydrochloride

[0366] NMR (CDCl3, δ): 8.3-8.5 (3H, m), 8.14 (1H, br s), 7.2-7.4 (5H, m), 7.14 (1H, br s), 5.08 (2H, s), 4.85 (1H, m), 4.14 (1H, m), 2.85 (3H, s), 1.4-2.8 (10H, m), 1.1-1.3 (22H, m), 0.88 (3H, t, J=7.5 Hz)

[0367] Preparation 41

[0368] (3S)-3-[(2S)-5-Benzyloxycarbonyl-2-aminopentanoyl]aminohexadecanamide hydrochloride

[0369] NMR (DMSO-d6, δ): 8.25 (1H, d, J=8 Hz), 8.12 (2H, m), 7.29-7.34 (6H, m), 6.80 (1H, br s), 5.08 (2H, s), 4.04 (1H, m), 3.80 (1H, m), 2.38 (2H, m), 2.21 (2H, d, J=7 Hz), 1.51-1.86 (4H, m), 1.10-1.47 (24H, m), 0.85 (3H, t, J=7 Hz)

[0370] Preparation 42

[0371] (2S)-5-Benzyloxycarbonyl-2-(tert-butoxycarbonylamino)pentanoic acid dicyclohexylammonium salt (1.07 g) was suspended with ethyl acetate and the mixture was washed with 0.5N sulfuric acid, water and brine, successively. The organic layer was dried over magnesium sulfate and concentrated in vacuo. The residue was dissolved in methylene chloride (10 ml) and to this was added DMAP (469 mg), PyBOP (1.05 g) and (3S)-4-(6-ethyl-2-naphthyl)-3-hydroxybutanamide (0.47 g) at room temperature. After being stirred overnight at the same temperature, the mixture was diluted with ethyl acetate and washed with 1N hydrochloric acid, aqueous ammonium chloride, aqueous sodium bicarbonate and brine, successively. The organic layer was dried over magnesium sulfate and concentrated in vacuo. The residue was dissolved in 4N hydrogen chloride in ethyl acetate (20 ml) at room temperature. After being stirred for 1 hour at the same temperature, the mixture was diluted with ethyl acetate and the resulting solid was collected by filtration to give (3S)-3-[(2S)-2-amino-5-benzyloxycarbonylpentanoyl]oxy-4-(6-ethyl-2-naphthyl)butanamide hydrochloride (0.70 g).

[0372] NMR (DMSO-d6, δ): 8.52 (3H, br s), 7.80 (2H, dd, J=8.0, 6.0 Hz), 7.72 (1H, s), 7.66 (1H, s), 7.48 (IH, br s), 7.3-7.4 (7H, m), 6.90 (1H, br s), 5.50 (1H, m), 5.08 (2H, s), 3.94 (1H, m), 3.06 (2H, m), 2.74 (2H, q, J=7.5 Hz), 2.40 (2H, d, J=7.5 Hz), 2.28 (2H, m), 1.4-1.8 (4H, m), 1.24 (3H, t, J=7.5 Hz)

EXAMPLE 6

[0373] To a stirring solution of (3S)-3-[(2S)-2-amino-5-benzyloxycarbonylpentanoyl]oxy-4-(6-ethyl-2-naphthyl)butanamide hydrochloride (0.20 g), 1-benzylindole-3-carboxylic acid (105 mg) and HOBt (62 mg) in DMF (2 ml) was added WSCD (71 mg) at 0° C. After being stirred at room temperature overnight, the mixture was diluted with ethyl acetate and washed with 1N hydrochloric acid, aqueous ammonium chloride, aqueous sodium bicarbonate and brine, successively. The organic layer was dried over magnesium sulfate and concentrated in vacuo to give (3S)-3-[(2S)-2-(1-benzylindol-3-ylcarbonylamino)-5-benzyloxycarbonylpentanoyl]oxy-4-(6-ethyl-2-naphthyl)-butanamide (0.26 g).

[0374] NMR (CDCl3, δ): 8.20 (1H, s), 8.1 (2H, m), 7.1-7.8 (19H, m), 6.66 (1H, d, J=10 Hz), 6.1 (1H, br s), 5.6 (1H, m), 5.34 (2H, s), 5.08 (2H, s), 4.7 (1H, m), 3.1 (2H, m), 2.74 (2H, q, J=7.5 Hz), 2.1-2.6 (4H, m), 1.4-1.9 (4H, m), 1.28 (3H, t, J=7.5 Hz)

[0375] ESI−MS: 724 [M+H]

[0376] The following compounds (Examples 7 to 20) were obtained according to a similar manner to that of Example 6.

EXAMPLE 7

[0377] (3S)-3-[(2S)-2-(1-Benzylindol-2-ylcarbonylamino)-5-benzyloxycarbonylpentanoyl]oxy-4-(2-naphthyl)butanamide

[0378] NMR (CDCl3, δ): 7.72 (4H, m), 7.62 (1H, s), 7.1-7.45 (14H, m), 7.02 (3H, m), 6.92 (1H, d, J=7.5 Hz), 5.82 (1H, br s), 5.78 (2H, ABq), 5.54 (1H, m), 5.20 (1H, br s), 5.10 (2H, s), 4.54 (1H, m), 3.08 (2H, m), 2.05-2.45 (4H, m), 1.70 (2H, m), 1.44 (2H, m)

[0379] ESI−MS: 696 [M+H]

EXAMPLE 8

[0380] (3S)-3-[(2S)-2-(1-Benzylindol-3-ylcarbonylamino)-5-benzyloxycarbonylpentanoyl]oxy-4-(2-naphthyl)butanamide

[0381] NMR (CDCl3, δ): 8.06 (1H, m), 7.7 (4H, m), 7.62 (1H, s), 7.2-7.4 (15H, m), 7.16 (1H, d, J=7.5 Hz), 6.66 (1H, d, J=7.5 Hz), 6.10 (1H, br s), 5.60 (1H, m), 5.34 (2H, s), 5.26 (1H, br s), 5.08 (2H, s), 4.66 (1H, m), 3.14 (2H, d, J=7.5 Hz), 2.52 (2H, ABX), 2.1-2.3 (2H, m), 1.65-1.85 (2H, m), 1.45-1.6 (2H, m)

[0382] ESI−MS: 696 [M+H]

EXAMPLE 9

[0383] (3S)-3-[(2S)-5-Benzyloxycarbonyl-2-(2-quinolylcarbonylamino)pentanoyl]oxy-4-(2-naphthyl)butanamide

[0384] NMR (CDCl3, δ): 8.70 (1H, d, J=10 Hz), 7.3-8.5 (18H, m), 5.92 (1H, br s), 5.62 (1H, m), 5.32 (1H, br s), 5.10 (2H, s), 4.74 (1H, m), 3.16 (2H, d, J=7.5 Hz), 2.52 (2H, m), 2.30 (2H, m), 1.6-2.0 (4H, m)

[0385] ESI−MS: 618 [M+H]

EXAMPLE 10

[0386] (3S)-3-[(2S)-2-(3-Benzylnaphthalen-2-ylcarbonylamino)-5-benzyloxycarbonylpentanoyl]oxy-4-(2-naphthyl)butanamide

[0387] NMR (CDCl3, δ): 7.05-7.86 (23H, m), 6.34 (1H, d, J=8.0 Hz), 5.80 (1H, br s), 5.58 (1H, m), 5.28 (1H, br s), 5.04 (2H, s), 4.50 (1H, m), 4.34 (2H, ABq), 3.16 (2H, d, J=7.5 Hz), 2.48 (2H, m), 2.16 (2H, m), 1.44-1.70 (2H, m), 1.28-1.40 (2H, m)

[0388] ESI−MS: 707 [M+H]

EXAMPLE 11

[0389] (3S)-4-(2-Naphthyl)-3-[(2S)-5-benzyloxycarbonyl-2-[2-(2-methoxycarbonylethyl)benzoylamino]pentanoyl]oxybutanamide

[0390] NMR (CDCl3, δ): 7.68-7.82 (3H, m), 7.65 (1H, br s), 7.21-7.46 (12H, m), 6.93 (1H, d, J=8 Hz), 6.02 (1H, br s), 5.61 (1H, m), 5.31 (1H, br s), 5.08 (2H, s), 4.59 (1H, m), 3.59 (3H, s), 3.18 (2H, m), 3.05 (2H, m), 2.72 (2H, m), 2.54 (2H, d, J=7 Hz), 2.16-2.34 (2H, m), 1.48-1.86 (4H, m)

EXAMPLE 12

[0391] (3S)-4-(2-Naphthyl)-3-[(2S)-5-benzyloxycarbonyl-2-[2-(2-t-butoxycarbonylethyl)benzoylamino]pentanoyl]oxybutanamide

[0392] NMR (CDCl3, δ): 7.68-7.81 (3H, m), 7.65 (1H, br s), 7.10-7.48 (13H, m), 6.10 (1H, br s), 5.60 (1H, m), 5.28 (1H, br s), 5.06 (2H, s), 4.56 (1H, m), 3.18 (2H, m), 2.93-3.13 (2H, m), 2.50-2.69 (4H, m), 2.22 (2H, m), 1.50-1.84 (4H, m), 1.36 (9H, s)

EXAMPLE 13

[0393] (3S)-4-(2-Naphthyl)-3-[(2S)-5-benzyloxycarbonyl-2-[2-(2-carbamoylethyl)benzoylamino]pentanoyl]oxybutanamide

[0394] NMR (DMSO-d6, δ): 8.85 (1H, d, J=7 Hz), 7.79-7.88 (3H, m), 7.75 (1H, br s), 7.18-7.50 (12H, m), 6.68 (1H, br s), 6.82 (1H, br s), 5.42 (1H, m), 5.06 (2H, s), 4.31 (1H, m), 3.13 (1H, dd, J=14 Hz, 5 Hz), 3.02 (1H, dd, J=14, 6 Hz), 2.92 (2H, dd, J=16, 8 Hz), 2.33-2.46 (4H, m), 2.23 (2H, m), 1.44-1.73 (4H, m)

EXAMPLE 14

[0395] (3S)-3-[(2S)-5-Benzyloxycarbonyl-2-(2-quinolylcarbonylamino)pentanoyl]oxy-4-(4-heptylphenyl)-butanamide

[0396] NMR (CDCl3, δ): 8.69 (1H, d, J=8 Hz), 8.33 (1H, d, J=8 Hz), 8.26 (1H, d, J=8 Hz), 8.18 (1H, d, J=8 Hz), 7.90 (1H, d, J=8 Hz), 7.80 (1H, m), 7.75 (1H, m), 7.28-7.38 (5H, m), 7.11 (2H, d, J=8 Hz), 7.02 (1H, d, J=8 Hz), 5.85 (1H, br s), 5.49 (1H, m), 5.30 (1H, br s), 5.10 (2H, s), 4.76 (1H, m), 2.53-2.86 (2H, m), 2.35-2.53 (6H, m), 1.40-2.10 (6H, m), 1.15-1.34 (8H, m), 0.88 (3H, t, J=7 Hz)

EXAMPLE 15

[0397] (3S)-4-(3-Benzo[b]furanyl)-3-[(2S)-5-benzyloxycarbonyl-2-(2-quinolylcarbonylamino)pentanoyl]oxybutanamide

[0398] NMR (CDCl3, δ): 8.68 (1H, d, J=8 Hz), 8.34 (1H, d, J=8 Hz), 8.27 (1H, d, J=8 Hz), 8.19 (1H, d, J=8 Hz), 7.91 (1H, d, J=8 Hz), 7.81 (1H, d, J=8 Hz, 7 Hz), 7.62-7.71 (2H, m), 7.54 (1H, s), 7.43 (1H, m), 7.23-7.37 (7H, m), 5.86 (1H, br s), 5.58 (1H, m), 5.28 (1H, br s), 5.09 (2H, s), 4.75 (1H, m), 3.10 (2H, d, J=7 Hz), 2.53 (2H, m), 2.38 (2H, m), 1.64-2.03 (4H, m)

EXAMPLE 16

[0399] (3S)-3-[(2S)-5-Benzyloxycarbonyl-2-(2-quinolylcarbonylamino)pentanoyl]oxy-6-nonyloxyhexanamide

[0400] NMR (CDCl3, δ): 8.74 (1H, d, J=8 Hz), 8.32 (1H, d, J=8 Hz), 8.25 (1H, d, J=8 Hz), 8.16 (1H, d, J=9 Hz), 7.88 (1H, d, J=8 Hz), 7.77 (1H, t, J=8 Hz), 7.62 (1H, t, J=8 Hz), 7.28-7.37 (5H, m), 5.93 (1H, br s), 5.36 (1H, m), 5.28 (1H, br s), 5.11 (2H, s), 4.78 (1H, m), 3.30-3.41 (4H, m), 2.41-2.53 (4H, m), 1.45-2.15 (10H, m), 1.15-1.33 (12H, m), 0.86 (3H, t, J=7 Hz)

EXAMPLE 17

[0401] (3S)-3-[(2S)-5-Benzyloxycarbonyl-2-(tert-butoxycarbonylamino)pentanoyl]amino-4-(2-naphthyl)butanamide

[0402] NMR (CDCl3, δ): 7.74-7.82 (3H, m), 7.64 (1H, s), 7.3-7.5 (8H, m), 7.14 (1H, d, J=10 Hz), 5.76 (1H, br s), 5.56 (1H, br s), 5.08 (1H, d, J=8.0 Hz), 5.06 (2H, s), 4.50 (1H, m), 4.00 (1H, m), 3.16 (1H, dd, J=12.0, 7.5 Hz), 3.02 (1H, dd, J=12.0, 7.5 Hz), 2.42 (2H, ABX), 2.26 (2H, m), 1.6-1.75 (2H, m), 1.45-1.6 (2H, m), 1.4 (9H, s)

[0403] ESI−MS: 562 [M+H]

EXAMPLE 18

[0404] (3S)-3-[(2S)-2-(1-Benzylindol-3-ylcarbonylamino)-5-benzyloxycarbonylpentanoyl]amino-4-(2-naphthyl)butanamide

[0405] NMR (DMSO-d6, δ): 8.26 (1H, s), 8.20 (1H, d, J=8.0 Hz), 8.02 (1H, d, J=8.0 Hz), 7.86 (1H, d, J=8.0 Hz), 7.64-7.74 (4H, m), 7.54 (1H, d, J=8.0 Hz), 7.1-7.4 (16H, m), 6.84 (1H, br s), 5.46 (2H, s), 5.06 (2H, s), 4.44 (1H, m), 4.30 (1H, m), 2.82-3.0 (2H, m), 2.2-2.4 (4H, m), 1.4-1.8 (4H, m)

[0406] ESI−MS: 695 [M+H]

EXAMPLE 19

[0407] (3S)-3-[N-Methyl-{(2S)-5-benzyloxycarbonyl-2-(2-quinolylcarbonylamino)pentanoyl}amino]hexadecanamide

[0408] NMR (CDCl3, δ): 8.90 (1H, d, J=8.0 Hz), 8.1-8.35 (3H, m), 7.85 (1H, d, J=8.0 Hz), 7.75 (1H, t, J=8.0 Hz), 7.62 (1H, t, J=8.0 Hz), 7.25-7.35 (5H, m), 6.32 (1H, br s), 5.52 (1H, br s), 5.16 (1H, m), 5.10 (2H, s), 4.82 (1H, m), 3.00 (3H, s), 2.4-2.55 (4H, m), 1.4-2.05 (6H, m), 1.05-1.4 (22H, m), 0.88 (3H, t, J=7.5 Hz)

[0409] ESI−MS: 673 [M+H]

EXAMPLE 20

[0410] (3S)-3-[(2S)-5-Benzyloxycarbonyl-2-(2-quinolylcarbonylamino)pentanoyl]aminohexadecanamide

[0411] NMR (CDCl3, δ): 8.71 (1H, d, J=8 Hz), 8.32 (1H, d, J=8 Hz), 8.25 (1H, d, J=8 Hz), 8.15 (1H, d, J=9 Hz), 7.88 (1H, d, J=8 Hz), 7.78 (1H, t, J=8 Hz), 7.63 (1H, t, J=8 Hz), 7.26-7.36 (5H, m), 6.82 (1H, d, J=8 Hz), 6.06 (1H, br s), 5.35 (1H, br s), 5.12 (2H, s), 4.62 (1H, m), 4.18 (1H, m), 2.37-2.54 (4H, m), 1.48-2.18 (6H, m), 1.02-1.36 (22H, m), 0.87 (3H, t, J=7 Hz)

EXAMPLE 21

[0412] To a stirring solution of (3S)-3-[(2S)-2-(1-benzylindol-3-ylcarbonylamino)-5-benzyloxycarbonylpentanoyl]oxy-4-(6-ethyl-2-naphthyl)butanamide (0.24 g) and anisole (717 mg) in methylene chloride (2.5 ml) was added aluminum chloride (442 mg) in nitromethane (2.5 ml) at room temperature. After being stirred for two hours at the same temperature, the mixture was diluted with ethyl acetate and washed with 1N hydrochloric acid, water and brine, successively. The organic layer was dried over magnesium sulfate and concentrated in vacuo. The resulting solid was triturated with ethyl ether to give (3S)-3-[(2S)-2-(1-benzylindol-3-ylcarbonylamino)-5-carboxypentanoyl]oxy-4-(6-ethyl-2-naphthyl)butanamide (113 mg).

[0413] NMR (DMSO-d6, δ): 8.28 (1H, s), 8.16 (2H, dd, J=8.0, 3.0 Hz), 7.1-7.8 (14H, m), 6.86 (1H, br s), 5.50 (2H, s), 5.40 (1H, m), 4.40 (1H, m), 3.04 (2H, ABX), 2.74 (2H, q, J=7.5 Hz), 2.34 (2H, d, J=7.5 Hz), 2.18 (2H, t, J=7.5 Hz), 1.5-1.8 (4H, m), 1.24 (3H, t, J=7.5 Hz)

[0414] The following compounds (Examples 22 to 32) were obtained according to a similar manner to that of Example 21.

EXAMPLE 22

[0415] (3S)-3-[(2S)-2-(1-Benzylindol-3-ylcarbonylamino)-5-carboxypentanoyl]oxy-4-(2-naphthyl)butanamide

[0416] NMR (DMSO-d6, δ): 8.28 (1H, s), 8.20 (2H, d, J=7.5 Hz), 7.8 (3H, m), 7.54 (1H, d, J=7.5 Hz), 7.1-7.6 (11H, m), 6.86 (1H, br s), 5.46 (2H, s), 5.40 (1H, m), 4.40 (1H, m), 3.05 (2H, ABX), 2.32 (2H, d, J=7.5 Hz), 2.16 (2H, t, J=7.5 Hz), 1.70 (2H, m), 1.55 (2H, m)

[0417] ESI−MS: 606 [M+H]

EXAMPLE 23

[0418] (3S)-3-[(2S)-5-Carboxy-2-(2-quinolylcarbonylamino)-pentanoyl]oxy-4-(2-naphthyl)butanamide

[0419] NMR (CDCl3, δ): 8.72 (1H, d, J=10 Hz), 7.15-8.3 (13H, m), 7.04 (1H, br s), 6.50 (1H, br s), 5.60 (1H, m), 4.76 (1H, m), 2.9-3.2 (2H, m), 2.44 (2H, m), 2.24 (2H, m), 1.35-2.1 (4H, m)

[0420] ESI−MS: 528 [M+H]

EXAMPLE 24

[0421] (3S)-3-[(2S)-2-(3-Benzylnaphthalen-2-ylcarbonylamino)-5-carboxypentanoyl]oxy-4-(2-naphthyl)butanamide

[0422] NMR (DMSO-d6, δ): 8.84 (1H, d, J=8.0 Hz), 7.06-7.98 (19H, m), 6.88 (1H, s), 5.42 (1H, m), 4.34 (1H, m), 4.28 (2H, ABq), 3.10 (2H, ABX), 2.36 (2H, d, J=7.5 Hz), 2.10 (2H, t, J=7.5 Hz), 1.4-1.75 (4H, m)

[0423] ESI−MS: 617 [M+H]

EXAMPLE 25

[0424] (3S)-4-(2-Naphthyl)-3-[(2S)-5-carboxy-2-[2-(2-methoxycarbonylethyl)benzoylamino]pentanoyl]oxybutanamide

[0425] NMR (DMSO-d6, δ): 8.75 (1H, d, J=8 Hz), 7.80-7.91 (3H, m), 7.78 (1H, br s), 7.22-7.50 (8H, m), 6.86 (1H, br s), 5.41 (1H, m), 4.32 (1H, m), 3.50 (3H, s), 2.90-3.18 (4H, m), 2.63 (2H, dd, J=8, 7 Hz), 2.35 (2H, d, J=7 Hz), 2.13 (2H, t, J=7 Hz), 1.44-1.72 (4H, m)

EXAMPLE 26

[0426] (3S)-4-(2-Naphthyl)-3-[(2S)-5-carboxy-2-[2-(2-carboxyethyl)benzoylamino]pentanoyl]oxybutanamide

[0427] NMR (DMSO-d6, δ): 8.74 (1H, d, J=7 Hz), 7.80-7.92 (3H, m), 7.77 (1H, br s), 7.22-7.53 (8H, m), 6.87 (1H, br s), 5.42 (1H, m), 4.31 (1H, m), 3.15 (1H, dd, J=14, 6 Hz), 2.86-3.08 (3H, m), 2.57 (2H, m), 2.37 (2H, d, J=7 Hz), 2.13 (2H, t, J=7 Hz), 1.42-1.72 (4H, m)

EXAMPLE 27

[0428] (3S)-4-(2-Naphthyl)-3-[(2S)-5-carboxy-2-[2-(2-carbamoylethyl)benzoylamino]pentanoyl]oxybutanamide

[0429] NMR (DMSO-6, δ): 8.86 (1H, d, J=7 Hz), 7.80-7.92 (3H, m), 7.75 (1H, br s), 7.15-7.53 (10H m), 6.88 (1H, br s), 6.73 (1H, br s), 5.42 (1H, m), 4.32 (1H, m), 2.82-3.18 (4H, m), 2.35-2.47 (4H, m), 2.11 (2H, t, J=7 Hz), 1.42-1.77 (4H, m)

EXAMPLE 28

[0430] (3S)-3-[(2S)-5-Carboxy-2-(2-quinolylcarbonylamino)-pentanoyl]oxy-4-(4-heptylphenyl)butanamide

[0431] NMR (DMSO-d6, δ): 8.95 (1H, d, J=8 Hz), 8.62 (1H, d, J=8 Hz), 8.20 (1H, d, J=9 Hz), 8.17 (1H, d, J=8 Hz), 8.12 (1H, d, J=8 Hz), 7.90 (1H, t, J=8 Hz), 7.74 (1H, t, J=8 Hz), 7.37 (1H, br s), 7.08 (1H, d, J=8 Hz), 6.92 (1H, d, J=8 Hz), 6.86 (1H, br s), 5.33 (1H, m), 4.51 (1H, m), 2.87 (1H, dd, J=14, 6 Hz), 2.78 (1H, dd, J=14, 7 Hz), 2.19-2.40 (4H, m), 1.84 (2H, m), 1.53 (2H, m), 1.36 (2H, m), 1.10-1.30 (8H, m), 0.83 (.3H, t, J=7 Hz)

EXAMPLE 29

[0432] (3S)-3-[(2S)-5-Carboxy-2-(2-quinolylcarbonylamino)-pentanoyl]oxy-6-nonyloxyhexanamide

[0433] NMR (CDCl3, δ): 8.84 (1H, d, J=8 Hz), 8.32 (1H, d, J=8 Hz), 8.26 (1H, d, J=8 Hz), 8.17 (1H, d, J=8 Hz), 7.88 (1H, d, J=8 Hz), 7.78 (1H, m), 7.63 (1H, m), 7.13 (1H, br s), 6.25 (1H, br s), 5.43 (1H, m), 4.83 (1H, m), 3.31-3.46 (4H, m), 2.34-2.77 (4H, m), 1.90-2.20 (2H, m), 1.40-1.88 (10H, m), 1.14-1.37 (12H, m), 0.86 (3H, t, J=7 Hz)

EXAMPLE 30

[0434] (3S)-3-[(2S)-2-(1-Benzylindol-3-ylcarbonylamino)-5-carboxypentanoyl]amino-4-(2-naphthyl)butanamide

[0435] NMR (DMSO-d6, δ): 8.24 (1H, s), 8.20 (1H, d, J=8.0 Hz), 8.04 (1H, d, J=8.0 Hz), 7.84 (1H, d, J=8.0 Hz), 7.64-7.74 (4H, m), 7.54 (1H, d, J=8.0 Hz), 7.1-7.4 (11H, m), 6.84 (1H, br s), 5.44 (2H, s), 4.42 (1H, m), 4.30 (1H, m), 2.8-3.0 (2H, m), 2.26 (2H, d, J=7.5 Hz), 2.16 (2H, t, J=7.5 Hz), 1.4-1.75 (4H, m)

[0436] ESI−MS: 605 [M+H]

EXAMPLE 31

[0437] (3S)-3-[N-Methyl-{(2S)-5-carboxy-2-(2-quinolylcarbonylamino)pentanoyl}amino]hexadecanamide

[0438] NMR (CDCl3, δ): 9.00 (1H, d, J=8.0 Hz), 8.26 (2H, ABq), 8.16 (1H, d, J=8.0 Hz), 7.86 (1H, d, J=8.0 Hz), 7.75 (1H, t, J=8.0 Hz), 7.60 (1H, t, J=8.0 Hz), 7.10 (1H, br s), 6.80 (1H, br s), 5.20 (1H, m), 5.10 (1H, m), 3.05 (3H, s), 2.58 (1H, dd, J=15.0, 5 Hz), 2.34-2.50 (3H, m), 1.4-2.1 (6H, m), 1.0-1.35 (22H, m), 0.86 (3H, t, J=7.5 Hz)

[0439] ESI−MS: 583 [M+H]

EXAMPLE 32

[0440] (3S)-3-[(2S)-5-Carboxy-2-(2-quinolylcarbonylamino)-pentanoyl]aminohexadecanamide

[0441] NMR (DMSO-d6, δ): 8.75 (1H, d, J=9 Hz), 8.09 (1H, d, J=9 Hz), 8.17 (2H, d, J=8 Hz), 8.10 (1H, d, J=8 Hz), 8.07 (1H, d, J=9 Hz), 7.88 (1H, t, J=8 Hz), 7.73 (1H, t, J=8 Hz), 7.27 (1H, br s), 6.79 (1H, br s), 4.55 (1H, m), 4.06 (1H, m), 2.12-2.30 (4H, m), 1.32-1.91 (6H, m), 0.95-1.30 (18H, m), 0.83 (3H, t, J=7 Hz)

EXAMPLE 33

[0442] A solution of (3S)-3-[(2S)-2-(1-benzylindol-2-ylcarbonylamino)-5-benzyloxycarbonylpentanoyl]oxy-4-(2-naphthyl)butanamide (0.22 g) in water (0.4 ml) and methanol (4 ml) was hydrogenated over 10% palladium on carbon (40 mg) under atmospheric pressure of hydrogen for two days at room temperature. Then the catalyst was filtered off with celite and filtrate was concentrated under reduced pressure. The residue was triturated with ether and chloroform to give (3S)-3-[(2S)-2-(1-benzylindol-2-ylcarbonylamino)-5-carboxypentanoyl]oxy-4-(2-naphthyl)butanamide (168 mg)

[0443] NMR (DMSO-d6, δ): 8.92 (1H, d, J=8.0 Hz), 7.05-7.85 (18H, m), 6.86 (1H, br s), 5.80 (2H, ABq), 5.40 (1H, m), 4.32 (1H, m), 3.02 (2H, ABX), 2.50 (2H, s), 2.32 (2H, d, J=7.5 Hz), 2.15 (2H, t, J=7.5 Hz), 1.65-1.8 (2H, m), 1.4-1.65 (2H, m)

[0444] ESI−MS: 606 [M+H]

EXAMPLE 34

[0445] A mixture of (3S)-4-(3-benzo[b]furanyl)-3-[(2S)-5-benzyloxycarbonyl-2-(2-quinolylcarbonylamino)pentanoyl]-oxybutanamide (184 mg), cyclohexene (0.31 ml), and 10% palladium on carbon (130 mg) in dioxane (1 ml) was refluxed for 2.5 hours. After filtration with celite, and filtrate was partitioned between ethyl acetate (20 ml) and water (20 ml). The organic phase was washed with brine, dried over magnesium sulfate, and concentrated in vacua. The residue was triturated in diethyl ether (5 ml) to give (3S)-4-(3-benzo[b]furanyl)-3-[(2S)-5-carboxy-2-(2-quinolylcarbonylamino)pentanoyl]oxybutanamide (107 mg).

[0446] NMR (DMSO-d6, δ): 9.02 (1H, d, J=8 Hz), 8.61 (1H, d, J=8 Hz), 8.21 (1H, d, J=8 Hz), 8.17 (1H, d, J=8 Hz), 8.12 (1H, d, J=8 Hz), 7.91 (1H, t, J=8 Hz), 7.70-7.79 (2H, m), 7.52 (1H, dd, J=7, 2 Hz), 7.41 (1H, br s), 7.12-7.34 (2H, m), 6.89 (1H, br s), 5.45 (1H, m), 4.53 (1H, m), 3.03 (2H, m), 2.42 (2H, m), 2.23 (2H, t, J=7 Hz), 1.86 (2H, m), 1.55 (2H, m)

EXAMPLE 35

[0447] A solution of (3S)-4-(2-naphthyl)-3-[(2S)-5-benzyloxycarbonyl-2-{2-(2-t-butoxycarbonylethyl)-benzoylamino}pentanoyl]oxybutanamide (160 mg) in 4N hydrogen chloride in ethyl acetate (1 ml) was stirred at room temperature for four hours. Then, the mixture was concentrated in vacua, dissolved in ethyl acetate (20 ml), washed with water (20 ml×2) and brine (20 ml), and dried over magnesium sulfate. After evaporation, the residue was triturated in diisopropyl ether to give (3S)-4-(2-naphthyl)-3-[(2S)-5-benzyloxycarbonyl-2-{2-(2-carboxyethyl)-benzoylamino}pentanoyl]oxybutanamide (91 mg).

[0448] NMR (CDCl3, δ): 7.66-7.80 (3H, m), 7.60 (1H, br s), 7.17-7.46 (12H, m), 7.04 (1H, d, J=8 Hz), 6.33 (1H, br s), 6.21 (1H, br s), 5.60 (1H, m), 5.05 (2H, s), 4.62 (1H, m), 2.92-3.20 (4H, m), 2.50-2.69 (4H, m), 2.19-2.32 (2H, m), 1.45-1.81 (4H, m)

[0449] Preparation 43

[0450] (3R)-3-Hydroxyhexadecanamide was obtained according to a similar manner to that of Preparation 23.

[0451] NMR (DMSO-d6, δ): 7.26 (1H, br s), 6.88 (1H, br s), 4.58 (1H, d, J=5 Hz), 3.75 (1H, m), 2.11 (2H, d, J=6 Hz), 1.14-1.40 (24H, m), 0.84 (3H, t, J=7 Hz)

[0452] Preparation 44

[0453] To a solution of (3R)-3-hydroxyhexadecanamide (6.4 g) and triethylamine (6.57 ml) in dichloromethane (130 ml) and dimethylsulfoxide (130 ml) was added methanesulfonyl chloride (2.74 ml). This mixture was stirred at room temperature for 6 hours, and the resulting precipitate was filtered off. The liquor was concentrated, and dissolved in ethyl acetate (500 ml). This solution was washed with 1N-hydrochloric acid (800 ml×2), saturated sodium carbonate (500 ml), and brine (200 ml). Drying over magnesium sulfate and concentration, the residue was chromatographed on a silica gel, eluting with a mixture of dichloromethane and methanol (50:1) to give (3R)-3-(methanesulfonyloxy)hexadecanamide (4.16 g).

[0454] NMR (CDCl3, δ): 5.68 (1H, br s), 5.45 (1H, br s), 5.04 (1H, m), 3.04 (3H, s), 2.62 (2H, d, J=7 Hz), 1.81 (2H, m), 1.35-1.50 (22H, m), 0.87 (3H, t, J=7 Hz)

[0455] Preparation 45

[0456] A solution of (3R)-3-(methanesulfonyloxy)hexadecanamide (4.16 g) and sodium azide (1.55 g) in dimethylformamide (50 ml) was heated at 60° C. for 2 hours. The cooled mixture was partitioned between ethyl acetate (300 ml) and water (500 ml). The organic phase was washed with water (300 ml), and brine (200 ml). Dried, concentrated under vacuum, the residue was purified on a silica gel (200 cc) to give (3S)-3-azidohexadecanamide (2.20 g).

[0457] NMR (CDCl3, δ): 5.62 (1H, br s), 5.40 (1H, br s), 3.85 (1H, m), 2.42 (1H, dd, J=15 Hz, 6 Hz), 2.34 (1H, dd, J=15 Hz, 8 Hz), 1.18-1.64 (24H, m), 0.88 (3H, t, J=7 Hz)

[0458] Preparation 46

[0459] A mixture of (3S)-3-azidohexadecanamide (2.18 g) and 10% palladium on carbon (320 mg) was hydrogenated at atmospheric pressure for 10 hours. The catalyst was filtered off with celite, and the liquor was concentrated under reduced pressure. The residue was triturated in diisopropyl ether (30 ml) to give (3S)-3-aminohexadecanamide.

[0460] NMR (DMSO-d6, δ): 7.36 (1H, br s), 6.72 (1H, br s), 2.89 (1H, m), 2.08 (1H, dd, J=14 Hz, 5 Hz), 1.94 (1H, dd, J=14 Hz, 8 Hz), 1.13-1.52 (24H, m), 0.85 (3H, t, J=7 Hz)

[0461] (3S)-3-aminohexadecanamide thus obtained was dissolved in 4N hydrogen chloride in ethyl acetate (15 ml), and concentrated under reduced pressure. The residue was triturated in diisopropyl ether to give (3S)-3-aminohexadecanamide hydrochloride (1.55 g).

[0462] Preparation 47

[0463] To an ice-cooled solution of (3S)-3-aminohexadecanamide (300 mg) and propionaldehyde (71 μl) in methanol (6 ml) was added sodium cyanoborohydride (61 mg). After 2 hours, propionaldehyde (71 μl) and sodium cyanoborohydride (61 mg) was added. The solution was stirred overnight. Then, the solvent was evaporated, diluted with water (20 ml), and extracted with chloroform (20 ml). The organic phase was washed with brine (20 ml), dried over magnesium sulfate, and evaporated to dryness. The residue was purified on a silica gel (20 cc) eluting with 1-10% methanol in chloroform to give (3S)-3-(propylamino)hexadecanamide (240 mg).

[0464] NMR (CDCl3, δ): 7.52 (1H, br s), 5.61 (1H, br s), 3.05 (1H, m), 2.34-2.88 (5H, m), 1.49-1.73 (4H, m), 1.16-1.45 (22H, m), 0.99 (3H, t, J=7 Hz), 0.88 (3H, m)

EXAMPLE 36

[0465] (3S)-3-[N-Propyl-{(2S)-5-benzyloxycarbonyl-2-(tert-butoxycarbonylamino)pentanoyl}amino]hexadecanamide was obtained according to a similar manner to that of Example 1.

[0466] Preparation 48

[0467] (3S)-3-[N-Propyl-{(2S)-2-amino-5-benzyloxycarbonylpentanoyl}amino]hexadecanamide was obtained according to a similar manner to that of Preparation 35.

EXAMPLE 37

[0468] (3S)-3-[N-Propyl-{(2S)-5-benzyloxycarbonyl-2-(2-quinolylcarbonylamino)pentanoyl}amino]hexadecanamide was obtained according to a similar manner to that of Example 6.

EXAMPLE 38

[0469] (3S)-3-[N-Propyl-{(2S)-5-carboxy-2-(2-quinolylcarbonylamino)pentanoyl}amino]hexadecanamide was obtained according to a similar manner to that of Example 21.

[0470] NMR (CDCl3, δ): 8.83 (1H, d, J=9 Hz), 8.12-8.34 (3H, m), 7.86 (1H, d, J=8 Hz), 7.76 (1H, t, J=7 Hz), 7.61 (1H, t, J=7 Hz), 6.52 (2H, br s), 5.10 (2H, m), 3.08-3.50 (2H, m), 2.33-2.72 (4H, m), 1.47-2.16 (8H, m), 1.05-1.40 (22H, m), 1.00 (3H, t, J=7 Hz), 0.87 (3H, t, J=7 Hz)

[0471] The following compounds (Preparations 49 and 50) were obtained according to a similar manner to that of Preparation 1.

[0472] Preparation 49

[0473] Methyl 4-(4-biphenylyl)-3-oxobutanoate

[0474] mp: 80-82° C.

[0475] Preparation 50

[0476] Methyl 3-oxo-10-phenyldecanoate

[0477] NMR (CDCl3, δ): 7.1-7.25 (5H, m), 3.74 (3H, s), 3.44 (2H, s), 2.5-2.7 (4H, m), 1.5-1.7 (4H, m), 1.2-1.4 (6H, m)

[0478] FAB−MS: 277 [M+H]

[0479] The following compounds (Preparations 51 to 60) were obtained according to a similar manner to that of Preparation 3.

[0480] Preparation 51

[0481] Methyl (3R)-4-(4-n-heptyl)phenyl-3-hydroxybutanoate

[0482] NMR (CDCl3, δ): 7.12 (4H, s), 4.25 (1H, m), 3.70 (3H, s), 2.7-2.9 (3H, m), 2.4-2.6 (4H, m), 1.55-1.65 (2H, m), 1.2-1.4 (8H, m), 0.88 (3H, t, J=7 Hz)

[0483] Preparation 52

[0484] Methyl (3R)-4-(4-n-butyl)phenyl-3-hydroxybutanoate

[0485] NMR (CDCl3, δ): 7.1 (4H, s), 4.24 (1H, m), 3.70 (3H, s), 2.7-2.85 (3H, m), 2.4-2.6 (4H, m), 1.5-1.65 (2H, m), 1.25-1.45 (2H, m), 0.90 (3H, t, J=7 Hz)

[0486] Preparation 53

[0487] Methyl (3R)-4-(4-methylphenyl)-3-hydroxybutanoate

[0488] NMR (CDCl3, δ): 7.1 (4H, s), 4.22 (1H, m), 3.68 (3H, s), 2.76 (2H, ABX), 2.48 (2H, ABX), 2.32 (3H, s)

[0489] Preparation 54

[0490] Methyl (3S)-3-hydroxy-5-(2-naphthyl)pentanoate

[0491] NMR (CDCl3, δ): 7.74-7.83 (3H, m), 7.64 (1H, s), 7.38-7.50 (2H, m), 7.35 (1H, d, J=8 Hz), 4.06 (1H, s m), 3.71 (3H, s), 2.82-3.06 (3H, m), 2.42-2.60 (2H, m), 1.77-2.03 (2H, m)

[0492] Preparation 55

[0493] Methyl (3S)-S-(n-decyloxy)-3-hydroxypentanoate

[0494] NMR (CDCl3, δ): 4.24 (1H, m), 3.71 (3H, s), 3.56-3.68 (2H, m), 3.53 (1H, d, J=3 Hz), 3.42 (2H, t, J=7 Hz), 2.48-2.54 (2H, m), 1.69-1.86 (2H, m), 1.50-1.61 (2H, m), 1.18-1.38 (14H, m), 0.87 (3H, t, J=7 Hz)

[0495] Preparation 56

[0496] Methyl (3S)-4-(4-biphenylyl)-3-hydroxybutanoate

[0497] Preparation 57

[0498] Methyl (3R,)-3-hydroxydodecanoate

[0499] NMR (CDCl3, δ): 4.0 (1H, m), 3.8 (3H, s), 2.82 (1H, d, J=3 Hz), 2.44 (2H, ABX), 1.2-1.55 (14H, m), 0.88 (3H, t, J=7 Hz)

[0500] Preparation 58

[0501] Methyl (3R)-3-hydroxynonanoate

[0502] NMR (CDCl3, δ): 4.0 (1H, m), 3.72 (3H, s), 2.85 (1H, d, J=2 Hz), 2.45 (2H, ABX), 1.2-1.6 (14H, m), 0.86 (3H, t, J=7 Hz)

[0503] Preparation 59

[0504] Methyl (3R),-3-hydroxyheptanoate

[0505] NMR (CDCl3, δ): 4.0 (1H, m), 3.7 (3H, s), 2.82 (1H, d, J=3 Hz), 2.44 (2H, ABX), 1.2-1.55 (61H, m), 0.88 (3H, t, J=7 Hz)

[0506] Preparation 60

[0507] Methyl (3R)-4-(6-ethyl-2-naphthyl)-3-hydroxybutanoate

[0508] NMR (CDCl3, δ): 7.74-7.84 (3H, m), 7.66 (1H, s), 7.4-7.5 (2H, m), 7.34 (1H, d, J=8 Hz), 4.36 (1H, m), 3.7 (2H, ABX), 2.87 (1H, d, J=5 Hz), 2.52 (2H, ABX)

[0509] ESI−MS: 245 [M+H]

[0510] The following compounds (Preparations 61 to 72) were obtained according to a similar manner to that of Preparation 7.

[0511] Preparation 61

[0512] (3R)-4-(4-n-Heptyl)phenyl-3-hydroxybutanamide

[0513] NMR (CDC3, δ): 7.12 (4H, s), 5.88 (1H, br s), 5.46 (1H, br s), 4.22 (1H, m), 3.26 (1H, d, J=3 Hz), 2.7-2.9 (2H, m), 2.54-2.62 (2H, m), 2.38 (2H, ABX), 2.54-2.66 (2H, m), 1.2-1.4 (8H, m), 0.88 (3H, t, J=7 Hz)

[0514] Preparation 62

[0515] (3R)-4-(4-n-Butyl)phenyl-3-hydroxybutanamide

[0516] NMR (DMSO-6, δ): 7.26 (1H, br s), 7.06 (4H,. s), 6.78 (1H, br s), 4.76 (1H, d, J=5 Hz), 4.02 (1H, m), 2.60 (2H, d, J=7 Hz), 2.5 (2H, m), 2.10 (2H, d, J=7 Hz), 1.45-1.6 (2H, m), 1.2-1.35 (2H, m), 0.88 (3H, t, J=7 Hz)

[0517] Preparation 63

[0518] (3R)-4-(4-Methylphenyl)-3-hydroxybutanamide

[0519] NMR (DMSO-d6, δ): 7.26 (1H, br s), 7.06 (4H, s), 6.78 (1H, br s), 4.76 (1H, d, J=5 Hz), 4.00 (1H, m), 2.60 (2H, d, J=7 Hz), 2.24 (3H, s), 2.10 (2H, d, J=7 Hz)

[0520] Preparation 64

[0521] (3R)-3-Hydroxy-4-(2-naphthyl)butanamide

[0522] NMR (DMSO-d6, δ): 7.78-7.90 (3H, m), 7.70 (1H, s), 7.34-7.52 (3H, m), 7.30 (1H, br s), 6.82 (1H, br s), 4.90 (1H, d, J=5.0 Hz), 4.14 (1H, m), 2.74-2.90 (2H, m), 2.15 (2H, d, J=5.0 Hz)

[0523] Preparation 65

[0524] (3S)-3-Hydroxy-5-(2-naphthyl)pentanamide

[0525] NMR (DMSO-d6, δ): 7.80-7.90 (3H, m), 7.69 (1H, s), 7.36-7.52 (3H, m), 7.28 (1H, s), 6.80 (1H, br s), 4.79 (1H, d, J=5 Hz), 3.85 (1H, m), 2.68-2.96 (2H, im), 2.21 (2H, d, J=6 Hz), 1.60-1.84. (2H, m)

[0526] Preparation 66

[0527] (3S)-5-(n-Decyloxy)-3-hydroxypentanamide

[0528] Rf=0.16 (2% methanol in chloroform)

[0529] Preparation 67

[0530] (3S)-3-Hydroxy-10-phenyldecanamide

[0531] NMR (CDCl3, δ): 7.1-7.35 (5H, m), 5.80 (1H, br s), 5.50 (1H, br s), 3.98 (1H, m), 3.30 (1H, d, J=3 Hz), 2.5-2.65 (2H, m), 2.2-2.45 (2H, m), 1.2-1.7 (10H, m)

[0532] FAB−MS: 264 [M+H]

[0533] Preparation 68

[0534] (3S)-4-(4-Biphenylyl)-3-hydroxybutanamide

[0535] NMR (DMSO-d6, δ): 7.25-7.7 (10H m), 6.85 (1H, br s), 4.86 (1H, d, J=7.5 Hz), 4.10 (1H, m), 2.52 (2H, s), 2.15 (2H, d, J=8.0 Hz)

[0536] FAB−MS: 256 [M+H]

[0537] Preparation 69

[0538] (3R)-3-Hydroxydodecanamide

[0539] NMR (CDCl3, δ): 5.85 (1H, br s), 5.52 (1H, br s), 4.0 (1H, m), 3.3 (1H, d, J=3 Hz), 2.4 (2H, ABX), 1.2-1.6 (16H, m), 0.90 (3H, t, J=7 Hz)

[0540] Preparation 70

[0541] (3R)-3-Hydroxynonanamide

[0542] NMR (CDCl3, δ): 5.85 (1H, br s), 5.52 (1H, br s), 4.0 (1H, m), 3.3 (1H, br s), 2.38 (2H, ABX), 1.2-1.7 (10H m), 0.88 (3H, t, J=7 Hz)

[0543] Preparation 71

[0544] (3R)-3-Hydroxyheptanamide

[0545] NMR (CDCl3, δ): 5.85 (1H, br s), 5.6 (1H, br s), 4.0 (1H, m), 3.32 (1H, br s), 2.38 (2H, ABX), 1.2-1.8 (8H, m), 0.88 (3H, t, J=7 Hz)

[0546] Preparation 72

[0547] (3R)-4-(6-Ethyl-2-naphthyl)-3-hydroxybutanamide

[0548] NMR (DMSO-d6, δ): 7.76 (2H, dd, J=8, 4 Hz), 7.64 (2H, s), 7.34 (2H, d, J=8 Hz), 7.28 (2H, br s), 6.80 (1H, br s), 4.86 (1H, d, J=4 Hz), 4.14 (1H, m), 2.8 (2H, d, J=7.5 Hz), 2.74 (2H, q, J=7.5 Hz), 2.16 (2H, d, J=7.5 Hz), 1.26 (3H, t, J=7.5 Hz)

[0549] Preparation 73

[0550] [4-(n-Butyl)phenyl]acetic acid was obtained according to a similar manner to that of Preparation 10.

[0551] NMR (CDCl3, δ): 7.10-7.22 (4H, m), 3.60 (2H, s), 2.58 (2H, dd, J=8, 7 Hz), 1.41-1.64 (2H, m), 1.27-1.42 (2H, m), 0.92 (3H, t, J=7 Hz)

[0552] The following compounds (Preparations 74 to 77) were obtained according to a similar manner to that of Preparation 14.

[0553] Preparation 74

[0554] Methyl 4-(4-n-butyl)phenyl-3-oxobutanoate

[0555] NMR (CDCl3, δ): 7.05-7.15 (4H, m), 3.76 (2H, s), 3.70 (3H, s), 3.42 (2H, s), 2.58 (2H, t, J=7 Hz), 1.5-1.65 (2H, m), 1.25-1.4 (2H, m), 0.92 (3H, t, J=7 Hz)

[0556] Preparation 75

[0557] Methyl 4-(4-methylphenyl)-3-oxobutanoate

[0558] NMR (CDCl3, δ): 7.0-7.15 (4H, m), 3.74 (2H, s), 3.68 (3H, s), 3.42 (2H, s), 2.3 (3H, s)

[0559] Preparation 76

[0560] Methyl 5-(2-naphthyl)-3-oxopentanoate

[0561] NMR (CDCl3, δ): 7.74-7.83 (3H, m), 7.63 (1H, br s), 7.38-7.49 (2H, m), 7.32 (1H, d, J=8 Hz), 3.72 (3H, s), 3.46 (2H, s), 3.09 (2H, t, J=7 Hz), 2.97 (2H, t, J=7 Hz)

[0562] Preparation 77

[0563] Methyl 5-(n-decyloxy)-3-oxopentanoate

[0564] NMR (CDCl3, δ): 3.74 (3H, s), 3.67 (2H, t, J=7 Hz), 3.51 (2H, s), 3.39 (2H, t, J=7 Hz), 2.78 (2H, t, J=7 Hz), 1.46-1.58 (2H, m), 1.18-1.36 (14H, m), 0.87 (3H, t, J=7 Hz)

[0565] The following compounds (Preparations 78 to 85) were obtained according to a similar manner to that of Preparation 17.

[0566] Preparation 78

[0567] (3R)-4-(4-n-Heptyl)phenyl-3-methanesulfonyloxybutanamide

[0568] NMR (CDCl3, δ): 7.05-7.2 (4H, m), 5.6 (1H, br s), 5.4 (1H, br s), 5.12 (1H, m), 3.08 (2H, d, J=7 Hz), 2.70 (3H, s), 2.52-2.62 (4H, m), 1.5-1.65 (2H, m), 1.2-1.35 (8H, m), 0.88 (3H, t, J=7 Hz)

[0569] Preparation 79

[0570] (3R)-4-(4-n-Butyl)phenyl-3-methanesulfonyloxybutanamide

[0571] NMR (CDCl3, δ): 7.05-7.2 (4H, m), 5.64 (1H, br s), 5.54 (1H, br s), 5.14 (1H, m), 3.08 (2H, d, J=7 Hz), 2.70 (3H, s), 2.54-2.64 (4H, m), 1.5-1.65 (2H, m), 1.25-1.4 (2H, m), 0.92 (3H, t, J=7 Hz)

[0572] Preparation 80

[0573] (3R)-4-(4-Methylphenyl)-3-methanesulfonyloxybutanamide

[0574] NMR (CDCl3, δ): 7.05-7.15 (4H, m), 5.60 (1H, br s), 5.44 (1H, br s), 5.14 (1H, m), 3.08 (2H, d, J=7 Hz), 2.70 (3H, s), 2.64 (2H, d, J=7 Hz), 2.30 (3H, s)

[0575] Preparation 81

[0576] (3R)-3-Methanesulfonyloxy-4-(2-naphthyl)butanamide

[0577] Preparation 82

[0578] (3R)-3-Methanesulfonyloxydodecanamide

[0579] NMR (CDCl3, δ): 5.72 (1H, br s), 5.52 (1H, br s), 5.05 (1H, m), 3.04 (3H, s), 2.62 (2H, d, J=7 Hz), 1.83 (2H, m), 1.2-1.5 (14H, m), 0.90 (3H, t, J=7 Hz)

[0580] Preparation 83

[0581] (3R)-3-Methanesulfonyloxynonanamide

[0582] NMR (CDCl3, δ): 5.84 (1H, br s), 5.76 (1H, br s), 5.02 (1H, m), 3.02 (3H, s), 2.6 (2H, d, J=7 Hz), 1.7-1.9 (2H, m), 1.2-1.45 (8H, m), 0.88 (3H, t, J=7 Hz)

[0583] Preparation 84

[0584] (3R)-3-Methanesulfonyloxyheptanamide

[0585] NMR (CDCl3, δ): 5.9 (1H, br s), 5.8 (1H, br s), 5.04 (1H, m), 3.04 (3H, s), 2.62 (2H, d, J=7 Hz), 1.7-1.9 (2H, m), 1.2-1.4 (4H, m), 0.90 (3H, t, J=7 Hz)

[0586] Preparation 85

[0587] (3R)-4-(6-Ethyl-2-naphthyl)-3-methanesulfonyloxybutanamide

[0588] NMR (DMSO-d6, δ): 7.8 (2H, d, J=8, 4 Hz), 7.7 (2H, d, J=8 Hz), 7.48 (1H, br s), 7.28 (2H, dd, J=8, 3 Hz), 7.04 (1H, br s), 5.22 (1H, m), 3.2 (2H, ABX), 2.95 (3H, s), 2.76 (2H, q, J=7 Hz), 2.46 (2H, d, J=7 Hz), 1.26 (3H, t, J=7 Hz)

[0589] The following compounds (Preparations 86 to 93) were obtained according to a similar manner to that of Preparation 18.

[0590] Preparation 86

[0591] (3S)-3-Azido-4-(4-n-heptylphenyl)butanamide

[0592] Preparation 87

[0593] (3S)-3-Azido-4-(4-n-butylphenyl)butanamide

[0594] Preparation 88

[0595] (3S)-3-Azido-4-(4-methylphenyl)butanamide

[0596] Preparation 89

[0597] (3S)--3-Azido-4-(2-naphthyl)butanamide

[0598] Preparation 90

[0599] (3S)-3-Azidododecanamide

[0600] NMR (CDCl3, δ): 5.66 (1H, br s), 5.55 (1H, br s), 3.84 (1H, m), 2.3-2.5 (2H, m), 1.58 (2H, t, J=7 Hz), 1.2-1.5 (14H, m), 0.88 (3H, t, J=7 Hz)

[0601] Preparation 91

[0602] (3S)-3-Azidononanamide

[0603] NMR (CDCl3, δ): 5.65 (1H, br s), 5.55 (1H, br s), 3.86 (1H, m), 2.4 (2H, ABX), 1.2-1.65 (10H m), 0.88 (3H, t, J=7 Hz)

[0604] Preparation 92

[0605] (3S)-3-Azidoheptanamide

[0606] NMR (CDCl3, δ): 5.65 (1H, br s), 5.55 (1H, br s), 3.82 (1H, m), 2.4 (2H, ABX), 1.2-1.7 (6H, m), 0.9 (3H, t, J=7 Hz)

[0607] Preparation 93

[0608] (3S)-3-Azido-4-(6-ethyl-2-naphthyl)butanamide

[0609] The following compounds (Preparations 94 to 101) were obtained according to a similar manner to that of Preparation 19.

[0610] Preparation 94

[0611] (3S)-3-Amino-4-(4-n-heptylphenyl)butanamide hydrochloride

[0612] NMR (DMSO-d6, δ): 8.04 (3H, br s), 7.62 (1H, br s), 7.05-7.2 (5H, m), 3.56 (1H, m), 2.96 (1H, dd, J=12, 5 Hz), 2.74 (1H, dd, J=12, 8 Hz), 2.5-2.6 (2H, m), 2.35 (2H, d, J=7 Hz), 1.5-1.65 (2H, m), 1.2-1.35 (8H, m), 0.86 (3H, t, J=7 Hz)

[0613] Preparation 95

[0614] (3S)-3-Amino-4-(4-n-butylphenyl)butanamide hydrochloride

[0615] NMR (DMSO-d6, δ): 8.06 (3H, br s), 7.62 (1H, br s), 7.1-7.2 (5H, m), 3.58 (1H, m), 2.96 (1H, dd, J=12, 8 Hz), 2.74 (1H, dd, J=12, 5 Hz), 2.54 (2H, t, J=7 Hz), 2.36 (2H, d, J=7 Hz), 1.48-1.62 (2H, m), 1.22-1.38 (2H, m), 0.90 (3H, t, J=7 Hz)

[0616] Preparation 96

[0617] (3S)-3-Amino-4-(4-methylphenyl)butanamide hydrochloride

[0618] NMR (DMSO-d6, δ): 8.06 (3H, br s), 7.62 (1H, br s), 7.05-7.2 (5H, m), 3.56 (1H, m), 2.96 (1H, dd, J=12, 5 Hz), 2.74 (1H, dd, J=12, 8 Hz), 2.74 (2H, t, J=7 Hz), 2.34 (2H, d, J=7 Hz), 2.28 (3H, s)

[0619] Preparation 97

[0620] (3S)-3-Amino-4-(2-naphthyl)butanamide

[0621] NMR (CD3OD—CDCl3, δ): 7.75-7.87 (3H, m), 7.64 (1H, s), 7.42-7.54 (2H, m), 7.32 (1H, d, J=8 Hz), 7.11 (0.25H, br s), 5.62 (0.25H, br s), 3.54 (1H, m), 2.98 (1H, dd, J=14, 6 Hz), 2.76 (1H, dd, J=14, 8 Hz), 2.46 (1H, dd, J=15, 3 Hz), 2.26 (1H, dd, J=15, 8 Hz)

[0622] Preparation 98

[0623] (3S)-3-Aminododecanamide hydrochloride

[0624] NMR (DMSO-d6, δ): 8.04 (3H, br s), 7.66 (1H, br s), 7.12 (1H, br s), 3.32 (1H, m), 2.42 (2H, d, J=7 Hz), 1.38-1.6 (2H, m), 1.15-1.38 (14H, m), 0.84 (3H, t, J=7 Hz)

[0625] Preparation 99

[0626] (3S)-3-Aminononanamide hydrochloride

[0627] NMR (DMSO-d6, δ): 8.08 (3H, br s), 7.68 (1H, br s), 7.12 (1H, br s), 3.32 (1H, m), 2.44 (2H, d, J=7 Hz), 1.4-1.65 (2H, m), 1.2-1.4 (8H, m), 0.86 (3H, t, J=7 Hz)

[0628] Preparation 100

[0629] (3S)-3-Aminoheptanamide

[0630] NMR (DMSO-d6, δ): 7.36 (1H, br s), 6.72 (1H, br s), 2.94 (1H, m), 2.10 (1H, dd, J=12, 5 Hz), 1.96 (1H, dd, J=12, 8 Hz), 1.15-1.4 (6H, m), 0.84 (3H, t, J=7 Hz)

[0631] Preparation 101

[0632] (3S)-3-Amino-4-(6-ethyl-2-naphthyl)butanamide

[0633] NMR (DMSO-d6, δ): 7.8 (2H, m), 7.7 (2H, d, J=7 Hz), 7.62 (1H, br s), 7.36 (2H, m), 7.1 (1H, br s), 3.7 (1H, m), 3.16 (1H, dd, J=12, 5 Hz), 2.95 (1H, dd, J=12, 7 Hz), 2.76 (2H, q, J=7 Hz), 2.4 (2H, d, J=7 Hz), 1.26 (3H, t, J=7 Hz)

[0634] The following compounds (Preparations 102 to 127) were obtained according to a similar manner to that of Preparation 47.

[0635] Preparation 102

[0636] (3S)-4-(2-Naphthyl)-3-(n-propylamino)butanamide

[0637] NMR (CDCl3, δ): 8.20 (1H, br s), 7.76-7.86 (3H, m), 7.60 (1H, s), 7.4-7.5 (2H, m), 7.30 (1H, d, J=8 Hz), 5.34 (1H, br s), 3.26 (1H, m), 2.98 (2H, dd, J=7, 2 Hz), 2.65 (2H, t, J=7 Hz), 2.52 (1H, dd, J=12, 3 Hz), 2.26 (1H, dd, J=12, 5 Hz), 1.4-1.6 (2H, m), 0.88 (3H, t, J=7 Hz)

[0638] ESI−MS: 271 [M+H]

[0639] Preparation 103

[0640] (3S)-3-(n-Butyl)amino-4-(4-n-heptylphenyl)butanamide

[0641] NMR (CDCl3, δ): 8.26 (1H, br s), 7.0-7.2 (4H, m), 5.34 (1H, br s), 3.12 (1H, m), 2.76 (2H, d, J=7 Hz), 2.54-2.7 (4H, m), 2.48 (1H, dd, J=12, 3 Hz), 2.20 (1H, dd, J=12, 5 Hz), 1.5-1.7 (6H, m), 1.2-1.5 (8H, m), 0.85-0.95 (6H, m)

[0642] Preparation 104

[0643] (3S)-3-(n-Butyl)amino-4-(4-n-butylphenyl)butanamide

[0644] NMR (CDCl3, δ): 8.08 (1H, br s), 7.0-7.2 (4H, m), 5.38 (1H, br s), 3.15 (1H, m), 2.0-2.9 (9H, m), 1.25-1.65 (8H, m), 0.85-0.95 (6H, m)

[0645] Preparation 105

[0646] (3S)-4-(4-n-Butyl)phenyl-3-(n-propylamino)butanamide

[0647] NMR (CDCl3, δ): 7.82 (1H, br s), 7.0-7.2 (4H, m), 5.46 (1H, br s), 3.20 (1H, m), 2.25-2.95 (9H, m), 1.25-1.65 (6H, m), 0.85-0.95 (6H, m)

[0648] Preparation 106

[0649] (3S)-4-(4-Methylphenyl)-3-(n-propylamino)butanamide

[0650] NMR (CDCl3, δ): 8.22 (1H, br s), 7.0-7.2 (4H, m), 5.34 (1H, br s), 3.12 (1H, m), 2.76 (2H, dd, J=7, 3 Hz), 2.62 (2H, dt, J=7, 2 Hz), 2.46 (1H, dd, J=12, 3 Hz), 2.32 (3H, s), 2.20 (1H, dd, J=12, 7 Hz), 1.4-1.55 (2H, m), 0.88 (3H, t, J=7 Hz)

[0651] Preparation 107

[0652] (3S)-3-(n-Butyl)amino-4-(2-naphthyl)butanamide

[0653] NMR (CDCl3, δ): 8.20 (1H, br s), 7.76-7.86 (3H, m), 7.60 (1H, s), 7.4-7.5 (2H, m), 7.30 (1H, d, J=8 Hz), 5.34 (1H, br s), 3.24 (1H, m), 2.98 (2H, dd, J=7, 2 Hz), 2.65 (2H, t, J=7 Hz), 2.52 (1H, dd, J=12, 3 Hz), 2.24 (1H, dd, J=12, 5 Hz), 1.2-1.5 (4H, m), 0.88 (3H, t, J=7 Hz)

[0654] Preparation 108

[0655] (3S)-3-Ethylamino-4-(2-naphthyl)butanamide

[0656] Preparation 109

[0657] (3S)-3-Isopentylaminohexadecanamide

[0658] NMR (CDCl3, δ): 8.12. (1H, br s), 5.38 (1H, br s), 2.86 (1H, m), 2.1-2.25 (2H, m), 2.50 (1H, dd, J=12, 3 Hz), 2.26 (1H, dd, J=12, 8 Hz), 1.2-1.7 (27H, m), 0.8-0.9 (9H, m)

[0659] ESI−MS: 341 [M+H]

[0660] Preparation 110

[0661] (3S)-3-Isobutylaminohexadecanamide

[0662] NMR (CDCl3, δ): 8.22 (1H, br s), 5.32 (1H, br s), 2.84 (1H, m), 2.35-2.6 (3H, m), 2.22 (1H, dd, J=12, 8 Hz), 1.2-1.8 (25H, m), 0.92-0.98 (6H, m), 0.86 (3H, t, J=7 Hz)

[0663] ESI−MS: 327 [M+H]

[0664] Preparation 111

[0665] (3S)-4-(2-Naphthyl)-3-(n-pentylamino)butanamide

[0666] NMR (CDCl3, δ): 8.20 (1H, br s), 7.76-7.87 (3H, m), 7.62 (1H, s), 7.42-7.52 (1H, m), 7.31 (1H, dd, J=8, 3 Hz), 5.35 (1H, br s), 3.25 (1H, m), 2.98 (2H, d, J=7 Hz), 2.67 (2H, t, J=7 Hz), 2.53 (1H, dd, J=16, 3 Hz), 2.24 (1H, dd, J=16, 7 Hz), 1.36-1.50 (2H, m), 1.18-1.34 (4H, m), 0.84 (3H, t, J=7 Hz)

[0667] ESI−MS: 299 [M+H]

[0668] Preparation 112

[0669] (3S)-3-Ethylaminohexadecanamide

[0670] Preparation 113

[0671] (3S)-3-(n-Butylamino)hexadecanamide

[0672] NMR (CDCl3, δ): 7.48 (1H, s), 5.65 (1H, s), 3.09 (1H, m), 2.87 (1H, m), 2.43-2.79 (3H, m), 1.08-1.76 (28H, m), 0.96 (3H, t, J=7 Hz), 0.88 (3H, t, J=7 Hz)

[0673] ESI−MS: 327 [M+H]

[0674] Preparation 114

[0675] (3S)-3-Phenethylamino)hexadecanamide

[0676] NMR (CDCl3, δ): 7.95 (1H, br s), 7.15-7.35 (5H, m), 5.08 (1H, br s), 2.74-3.02 (4H, m), 2.38 (1H, dd, J=16, 3 Hz), 2.24 (1H, dd, J=16, 8 Hz), 1.08-1.69 (24H, m), 0.88 (3H, t, J=7 Hz)

[0677] ESI−MS: 375 [M+H]

[0678] Preparation 115

[0679] (3S)-3-(2-Pyridylmethylamino)hexadecanamide

[0680] NMR (CDCl3, δ): 8.56 (1H, m), 8.12 (1H, br s), 7.65 (1H, dd, J=8, 7 Hz), 7.16-7.29 (2H, m), 5.31 (1H, br s), 3.95 (1H, s), 2.95 (1H, m), 2.52 (1H, dd, J=16, 4 Hz), 2.24 (1H, dd, J=16, 7 Hz), 1.16-1.68 (24H, m), 0.88 (3H, t, J=7 Hz)

[0681] ESI−MS: 362 [M+H]

[0682] Preparation 116

[0683] (3S)-3-Benzylaminohexadecanamide

[0684] NMR (CDCl3, δ): 8.09 (1H, br s), 7.23-7.39 (5H, m), 5.28 (1H, br s), 3.83 (1H, d, J=14 Hz), 3.76 (1H, d, J=14 Hz), 2.95 (1H, m), 2.51 (1H, dd, J=13, 4 Hz), 2.24 (1H, dd, J=13, 8 Hz), 1.17-1.67 (24H, m), 0.88 (3H, t, J=7 Hz)

[0685] ESI−MS: 361 [M+H]

[0686] Preparation 117

[0687] (3S)-3-(n-Pentylamino)dodecanamide

[0688] Preparation 118

[0689] (3S)-3-(n-Propylamino)dodecanamide

[0690] Preparation 119

[0691] (3S)-3-(n-Pentylamino)nonanamide

[0692] Preparation 120

[0693] (3S)-3-(n-Butylamino)nonanamide

[0694] Preparation 121

[0695] (3S)-3-(n-Propylamino)nonanamide

[0696] Preparation 122

[0697] (3S)-3-Ethylaminononanamide

[0698] ESI−MS: 201 [M+H]

[0699] Preparation 123

[0700] (3S)-3-(n-Propylamino)heptanamide

[0701] Preparation 124

[0702] (3S)-3-(n-Butylamino)heptanamide

[0703] ESI−MS: 201 [M+H]

[0704] Preparation 125

[0705] (3S)-3-(n-Propyl)amino-4-(6-ethyl-2-naphthyl)butanamide

[0706] Preparation 126

[0707] (3S)-3-(n-Butyl)amino-4-(6-ethyl-2-naphthyl)butanamide

[0708] Preparation 127

[0709] (3S)-3-(n-Pentylamino)hexadecanamide

[0710] NMR (CDCl3, δ): 780 (1H, br s), 5.52 (1H, br s), 3.00 (1H, m), 2.63-2.86 (2H, m), 2.57 (1H, dd, J=13, 8 Hz), 2.38 (1H, dd, J=13, 8 Hz), 1.18-1.68 (30H, m), 0.84-0.98 (6H, m)

[0711] ESI−MS: 341 [M+H]

[0712] The following compounds (Preparations 128 to 157) were obtained according to a similar manner to that of Preparation 35.

[0713] Preparation 128

[0714] (3S)-3-[N-(n-Butyl)-{(2S)-2-amino-5-methoxycarbonyl-pentanoyl}amino]-4-(4-n-heptylphenyl)butanamide hydrochloride

[0715] ESI−MS: 490 [M+H]

[0716] Preparation 129

[0717] (3S)-3-[N-(n-Propyl)-{(2S)-2-amino-4-benzyloxycarbonyl-butanoyl}amino]-4-(2-naphthyl)butanamide hydrochloride

[0718] ESI−MS: 490 [M(free)+H]

[0719] Preparation 130

[0720] (3S)-3-[N-(n-Butyl)-{(2S)-2-amino-5-benzyloxycarbonyl-pentanoyl}amino]-4-(4-n-butylphenyl)butanamide hydrochloride

[0721] ESI−MS: 524 [M(free)+H]

[0722] Preparation 131

[0723] (3S)-3-[N-(n-Propyl)-{(2S)-2-amino-5-benzyloxycarbonyl-pentanoyl}amino]-4-(4-n-butylphenyl)butanamide hydrochloride

[0724] ESI−MS: 510 [M(free)+H]

[0725] Preparation 132

[0726] (3S)-3-[N-(n-Propyl)-{(2S)-2-amino-5-benzyloxycarbonyl-pentanoyl}amino]-4-(4-methylphenyl)butanamide hydrochloride

[0727] ESI−MS: 468 [M(free)+H]

[0728] Preparation 133

[0729] (3S)-3-[N-(n-Butyl)-{(2S)-2-amino-5-benzyloxycarbonyl-pentanoyl}amino]-4-(2-naphthyl)butanamide hydrochloride

[0730] ESI−MS: 518 [M(free)+H]

[0731] Preparation 134

[0732] (3S)-3-[N-Ethyl-{(2S)-2-amino-5-benzyloxycarbonyl-pentanoyl}amino]-4-(2-naphthyl)butanamide hydrochloride

[0733] ESI−MS: 490 [M(free)+H]

[0734] Preparation 135

[0735] (3S)-3-[N-Isopropyl-{(2S)-2-amino-5-benzyloxycarbonyl-pentanoyl}amino]hexadecanamide hydrochloride

[0736] ESI−MS: 574 [M(free)+H]

[0737] Preparation 136

[0738] (3S)-3-[N-Isobutyl-{(2S)-2-amino-5-benzyloxycarbonyl-pentanoyl}amino]hexadecanamide hydrochloride

[0739] ESI−MS: 560 [M(free)+H]

[0740] Preparation 137

[0741] (3S)-3-[N-(n-Pentyl)-{(2S)-2-amino-5-benzyloxycarbonyl-pentanoyl}amino]-4-(2-naphthyl)butanamide hydrochloride

[0742] ESI−MS: 532 [M(free)+H]

[0743] Preparation 138

[0744] (3S)-3-[N-(n-Propyl)-{(2S)-2-amino-5-benzyloxycarbonyl-pentanoyl}amino]-4-(2-naphthyl)butanamide hydrochloride

[0745] ESI−MS: 504 [M(free)+H]

[0746] Preparation 139

[0747] (3S)-3-[N-Ethyl-{(2S)-2-amino-5-benzyloxycarbonyl-pentanoyl}amino]hexadecanamide hydrochloride

[0748] ESI−MS: 532 [M(free)+H]

[0749] Preparation 140

[0750] (3S)-3-[N-(n-Propyl)-{(2S)-2-amino-5-benzyloxycarbonyl-pentanoyl}amino]hexadecanamide hydrochloride

[0751] ESI−MS: 560 [M+H]

[0752] Preparation 141

[0753] (3S)-3-[N-Phenethyl-{(2S)-2-amino-5-benzyloxycarbonyl-pentanoyl}amino]hexadecanamide hydrochloride

[0754] ESI−MS: 608 [M+H]

[0755] Preparation 142

[0756] (3S)-3-[N-(n-Pentyl)-{(2S)-2-amino-5-benzyloxycarbonyl-pentanoyl}amino]hexadecanamide hydrochloride

[0757] ESI−MS: 574 [M(free)+H]

[0758] Preparation 143

[0759] (3S)-3-[N-Benzyl-{(2S)-2-amino-5-benzyloxycarbonyl-pentanoyl}amino]hexadecanamide hydrochloride

[0760] ESI−MS: 594 [M(free)+H]

[0761] Preparation 144

[0762] (3S)-3-[N-(2-Pyridylmethyl)-{(2S)-2-amino-5-benzyloxy-carbonylpentanoyl}amino]hexadecanamide dihydrochloride

[0763] ESI−MS: 595 [M(free)+H]

[0764] Preparation 145

[0765] (3S)-3-[(2S)-2-Amino-5-benzyloxycarbonylpentanoyl]-oxy-5-(2-naphthyl)pentanamide hydrochloride

[0766] NMR (DMSO-d6, δ): 8.57 (2H, br s), 7.80-7.92 (3H, m), 7.73 (1H, s), 7.30-7.45 (8H, m), 6.92 (1H, br s), 5.30 (1H, m), 5.09 (2H, s), 4.04 (1H, m), 2.72-2.92 (2H, m), 2.23-2.50 (4H, m), 1.52-2.07 (6H, m)

[0767] Preparation 146

[0768] (3S)-3-[(2S)-2-Amino-5-benzyloxycarbonylpentanoyl]-oxy-10-phenyldecanamide hydrochloride

[0769] NMR (CDCl3, δ): 8.2 (2H, br), 7.1-7.4 (11H, m), 6.75 (1H, s), 5.3 (1H, m), 5.08 (2H, s), 4.02 (1H, t, J=5.0 Hz), 2.54 (3H, m), 2.40 (3H, m), 1.5-2.15 (8H, m), 1.2-1.35 (8H, m)

[0770] Preparation 147

[0771] 3-[N-Methyl-{(2S)-2-amino-5-benzyloxycarbonylpentanoyl}-amino]propanamide hydrochloride

[0772] Preparation 148

[0773] (3S)-3-[N-(n-Pentyl)-{(2S)-2-amino-5-benzyloxycarbonyl-pentanoyl}amino]dodecanamide hydrochloride

[0774] Preparation 149

[0775] (3S)-3-[N-(n-Propyl)-{(2S)-2-amino-5-methoxycarbonyl-pentanoyl}amino]dodecanamide hydrochloride

[0776] ESI−MS: 414 [M(free)+H]

[0777] Preparation 150

[0778] (3S)-3-[N-(n-Pentyl)-{(2S)-2-amino-5-benzyloxycarbonyl-pentanoyl}amino]nonanamide hydrochloride

[0779] Preparation 151

[0780] (3S)-3-[N-(n-Butyl)-{(2S)-2-amino-5-benzyloxycarbonyl-pentanoyl}amino]nonanamide hydrochloride

[0781] Preparation 152

[0782] (3S)-3-[N-(n-Propyl)-{(2S)-2-amino-5-benzyloxycarbonyl-pentanoyl}amino]nonanamide hydrochloride

[0783] Preparation 153

[0784] (3S)-3-[N-Ethyl-{(2S)-2-amino-5-methoxycarbonyl-pentanoyl}amino]nonanamide hydrochloride

[0785] ESI−MS: 358 [M(free)+H]

[0786] Preparation 154

[0787] (3S)-3-[N-(n-Propyl)-{(2S)-2-amino-5-benzyloxycarbonyl-pentanoyl}amino]heptanamide hydrochloride

[0788] Preparation 155

[0789] (3S)-3-[N-(n-Butyl)-{(2S)-2-amino-5-methoxycarbonyl-pentanoyl}amino]heptanamide hydrochloride

[0790] ESI−MS: 358 [M(free)+H]

[0791] Preparation 156

[0792] (3S)-3-[N-(n-Propyl)-{(2S)-2-amino-5-benzyloxycarbonyl-pentanoyl}amino]-4-(6-ethyl-2-naphthyl)butanamide hydrochloride

[0793] Preparation 157

[0794] (3S)-3-[N-(n-Butyl)-{(2S)-2-amino-5-benzyloxycarbonyl-pentanoyl}amino]-4-(6-ethyl-2-naphthyl)butanamide hydrochloride

[0795] The following compounds (Examples 39 to 43) were obtained according to a similar manner to that of Example 1.

EXAMPLE 39

[0796] (3S)-3-[(2S)-5-Benzyloxycarbonyl-2-(tert-butoxycarbonylamino)pentanoyl]oxy-10-phenyldecanamide

[0797] NMR (CDCl3, δ): 7.1-7.4 (5H, m), 5.9 (1H, br s), 5.3 (1H, br s), 5.22 (1H, m), 5.1 (2H, s), 5.06 (1H, d, J=10.0 Hz), 4.22 (1H, m), 2.08 (2H, m), 2.3-2.5 (4H, m), 1.2-1.9 (30H, m)

[0798] FAB−MS: 619 [M+Na]

EXAMPLE 40

[0799] (3S)-3-[(2S)-5-Benzyloxycarbonyl-2-(tert-butoxycarbonylamino)pentanoyl]oxy-4-(4-biphenylyl)butanamide

[0800] mp: 94-98° C.

EXAMPLE 41

[0801] (3S)-3-[N-(n-Butyl)-{(2S)-5-benzyloxycarbonyl-2-(tert-butoxycarbonylamino)pentanoyl}amino]-4-(4-n-butylphenyl)-butanamide

[0802] ESI−MS: 624 [M+H]

EXAMPLE 42

[0803] (3S)-3-[(2S)-5-Benzyloxycarbonyl-2-(tert-butoxycarbonylamino)pentanoyl]oxy-5-(2-naphthyl)pentanamide

[0804] NMR (CDCl3, δ): 7.74-7.84 (3H, m), 7.63 (1H, s), 7.28-7.51 (8H, m), 5.93 (1H, br s), 5.33 (1H, m), 5.30 (1H, br s), 5.12 (2H, s), 4.97 (1H, d, J=7 Hz), 4.23 (1H, m), 2.84 (2H, t, J=7 Hz), 2.52 (2H, d, J=6 Hz), 2.33-2.42 (2H, m), 2.04-2.18 (2H, m), 1.60-1.90 (4H, m), 0.95 (9H, s)

EXAMPLE 43

[0805] (3S)-3-[(2S)-5-Benzyloxycarbonyl-2-(tert-butoxycarbonylamino)pentanoyl]oxy-5-(n-decyloxy)pentanamide

[0806] NMR (CDCl3, δ): 7.31-7.40 (5H, m), 6.02 (1H, br s), 5.36 (1H, m), 5.28 (1H, br s), 5.12 (2H, s), 5.06 (1H, d, J=8 Hz), 4.23 (1H, m), 3.34-3.57 (4H, m), 2.59 (1H, dd, J=15, 6 Hz), 2.51 (1H, dd, J=15, 7 Hz), 1.49-2.01 (8H, m), 1.44 (9H, s), 1.21-1.36 (14H, m), 0.88 (3H, t, J=7Hz)

[0807] The following compounds (Examples 44 to 136) were obtained according to a similar manner to that of Example 6.

EXAMPLE 44

[0808] (3S)-3-[(2S)-5-Benzyloxycarbonyl-2-[2-(methoxycarbonyl-methyl)benzoylamino]pentanoyl]oxy-4-(2-naphthyl)butanamide

[0809] NMR (CDCl3, δ): 7.72-7.83 (3H, m), 7.65 (1H, s), 7.52 (1H, d, J=7 Hz), 7.22-7.47 (12H, m), 5.93 (1H, br s), 5.59 (1H, m), 5.25 (1H, br s), 5.08 (2H, s), 4.59 (1H, m), 3.93 (1H, d, J=15 Hz), 3.80 (1H, d, J=15 Hz), 3.67 (3H, s), 3.18 (2H, d, J=7 Hz), 2.43-2.59 (2H, m), 2.16-2.34 (2H, m), 1.48-1.83 (4H, m)

[0810] ESI−MS: 639 [M+H]

EXAMPLE 45

[0811] (3S)-3-[(2S)-5-Benzyloxycarbonyl-2-[2-(benzyloxy-carbonylmethyl)benzoylamino]pentanoyl]oxy-4-(2-naphthyl)-butanamide

[0812] NMR (CDCl3, δ): 7.72-7.82 (3H, m), 7.66 (1H, s), 7.52 (1H, d, J=7 Hz), 7.22-7.47 (17H, m), 5.89 (1H, br s), 5.57 (1H, m), 5.22 (1H, br s), 5.12 (2H, s), 5.07 (2H, s), 4.57 (1H, m), 3.97 (1H, d, J=16 Hz), 3.86 (1H, d, J=16 Hz), 3.17 (2H, d, J=7 Hz), 2.42-2.57 (2H, m), 2.13-2.31 (2H, m), 1.48-1.79 (4H, m)

[0813] ESI−MS: 715 [M+H]

EXAMPLE 46

[0814] (3S)-3-[(2S)-5-Benzyloxycarbonyl-2-[2-((2E)-2-methoxycarbonylvinyl)benzoylamino]pentanoyl]oxy-4-(2-naphthyl)butanamide

[0815] NMR (CDCl3, δ): 7.98 (1H, d, J=16 Hz), 7.60-7.77 (5H, m), 7.29-7.53 (11H, m), 6.45 (1H, d, J=8 Hz), 6.34 (1H, d, J=16 Hz), 6.18 (1H, br s), 5.63 (1H, m), 5.37 (1H, br s), 5.09 (2H, s), 4.61 (1H, m), 3.75 (3H, s), 3.10-3.26 (2H, m), 2.54-2.69 (2H, m), 2.12-2.36 (2H, m), 1.46-1.86 (4H, m)

[0816] ESI−MS: 651 [M+H]

EXAMPLE 47

[0817] (3S)-3-[(2S)-5-Benzyloxycarbonyl-2-(3-benzylnaphthalen-2-ylcarbonylamino)pentanoyl]oxy-4-(4-n-heptylphenyl)-butanamide

[0818] NMR (CDCl3, δ): 7.93 (1H, s), 7.75-7.88 (2H, m), 7.66 (1H, s), 7.46-7.58 (2H, m), 7.27-7.38 (5H, m), 7.06-7.24 (9H, m), 6.33 (1H, d, J=7 Hz), 5.75 (1H, br s), 5.46 (1H, m), 5.23 (1H, br s), 5.08 (2H, s), 4.53 (1H, m), 4.47 (1H, d, J=16 Hz), 4.28 (1H, d, J=16 Hz), 2.88-3.04 (2H, m), 2.47-2.56 (2H, m), 2.37-2.45 (2H, m), 2.22-2.32 (2H, m), 1.38-1.82 (6H, m), 1.15-1.34 (8H, m), 0.82-0.92 (3H, m)

[0819] ESI−MS: 755 [M+H]

EXAMPLE 48

[0820] (3S)-3-[(2S)-5-Benzyloxycarbonyl-2-(2-quinolylcarbonyl-amino)pentanoyl]oxy-5-(2-naphthyl)pentanamide

[0821] NMR (CDCl3, δ): 8.73 (1H, d, J=8 Hz), 8.33 (1H, d, J=8 Hz), 8.26 (1H, d, J=8 Hz), 8.18 (1H, d, J=8 Hz), 7.90 (1H, d, J=8 Hz), 7.61-7.83 (5H, m), 7.59 (1H, s), 7.25-7.46 (7H, m), 5.96 (1H, br s), 5.41 (1H, m), 5.29 (1H, br s), 5.12 (2H, s), 4.77 (1H, m), 2.86 (2H, t, J=8 Hz), 2.57 (2H, d, J=6 Hz), 2.45 (2H, d, J=7 Hz), 1.75-2.22 (6H, m)

EXAMPLE 49

[0822] (3S)-3-[(2S)-5-Benzyloxycarbonyl-2-[1-(4-methylbenzyl)-indol-2-ylcarbonylamino]pentanoyl]oxy-4-(2-naphthyl)-butanamide

[0823] NMR (CDCl3, δ): 7.67-7.78 (4H, m), 7.63 (1H, s), 7.27-7.45 (9H, m), 7.17 (1H, m), 6.86-7.05 (6H, m), 5.84 (1H, br s), 5.81 (1H, d, J=16 Hz), 5.68 (1H, d, J=16 Hz), 5.57 (1H, m), 5.16 (1H, br s), 5.11 (2H, s), 4.55 (1H, m), 3.08 (2H, m), 2.07-2.48 (4H, m), 2.25 (3H, s), 1.38-1.82 (4H, m)

[0824] ESI−MS: 710 [M+H]

EXAMPLE 50

[0825] (3S)-3-[(2S)-5-Benzyloxycarbonyl-2-[1-(4-chlorobenzyl)-indol-3-ylcarbonylamino]pentanoyl]oxy-4-(2-naphthyl)-butanamide

[0826] NMR (CDCl3, δ): 8.07 (!H, m), 7.67-7.78 (4H, m), 7.53 (1H, s), 7.21-7.47 (13H, m), 7.07 (2H, d, J=8 Hz), 6.86 (1H, d, J=7 Hz), 6.07 (1H, br s), 5.62 (1H, m), 5.32 (1H, br s), 5.30 (2H, s), 5.08 (2H, s), 4.70 (1H, m), 3.16 (2H, d, J=7 Hz), 2.57 (1H, dd, J=15, 4 Hz), 2.48 (1H, dd, J=15, 7 Hz), 2.11-2.36 (2H, m), 1.45-1.90 (4H, m)

[0827] ESI−MS: 730 [M+H]

EXAMPLE 51

[0828] (3S)-3-[(2S)-5-Benzyloxycarbonyl-2-[1-(4-methylbenzyl)-indol-3-ylcarbonylamino]pentanoyl]oxy-4-(2-naphthyl)-butanamide

[0829] NMR (CDCl3, δ): 8.06 (1H, m), 7.67-7.77 (4H, m), 7.62 (1H, br s), 7.20-7.43 (11H, m), 7.13 (2H, d, J=8 Hz), 7.07 (2H, d, J=8 Hz), 6.73 (1H, d, J=7 Hz), 6.13 (1H, br s), 5.59 (1H, m), 5.29 (2H, s), 5.27 (1H, br s), 5.07 (2H, s), 4.67 (1H, m), 3.15 (2H, d, J=7 Hz), 2.57 (1H, dd, J=14, 4 Hz), 2.48 (1H, dd, J=14, 7 Hz), 2.32 (3H, s), 2.07-2.28 (2H, m), 1.43-1.88 (4H, m)

[0830] ESI−MS: 710 [M+H]

EXAMPLE 52

[0831] (3S)-3-[N-(2-Pyridylmethyl)-{(2S)-5-benzyloxycarbonyl-2-(2-quinolylcarbonylamino)pentanoyl}amino]hexadecanamide

[0832] ESI−MS: 750 [M+H]

EXAMPLE 53

[0833] (3S)-3-[N-Benzyl-{(2S)-5-benzyloxycarbonyl-2-(2-quinolylcarbonylamino)pentanoyl}amino]hexadecanamide

[0834] ESI−MS: 749 [M+H]

EXAMPLE 54

[0835] (3S)-3-[N-(n-Pentyl)-{(2S)-5-benzyloxycarbonyl-2-(2-quinolylcarbonylamino)pentanoyl}amino]hexadecanamide

[0836] ESI−MS:729 [M+H]

EXAMPLE 55

[0837] (35)-3-[N-Phenethyl-{(2S)-5-benzyloxycarbonyl-2-(2-quinolylcarbonylamino)pentanoyl}amino]hexadecanamide

[0838] ESI−MS:763 [M+H]

EXAMPLE 56

[0839] (3S)-3-[N-(n-Butyl)-{(2S)-5-benzyloxycarbonyl-2-(2-quinolylcarbonylamino)pentanoyl}amino]hexadecanamide

[0840] ESI−MS: 737 [M+H]

EXAMPLE 57

[0841] (3S)-3-[N-Ethyl-{(2S)-5-benzyloxycarbonyl-2-(2-quinolylcarbonylamino)pentanoyl}amino]hexadecanamide

[0842] ESI−MS: 7 [M+H]

EXAMPLE 58

[0843] (3S)-3-[N-(n-Propyl)-{(2S)-2-(1-benzylindol-3-ylcarbonylamino)-5-benzyloxycarbonylpentanoyl}amino]-4-(2-naphthyl)butanamide

[0844] ESI−MS: 737 [M+H]

EXAMPLE 59

[0845] (3S)-3-[N-(n-Propyl)-{(2S)-5-benzyloxycarbonyl-2-(1-(1-naphthylmethyl)indol-3-ylcarbonylamino)pentanoyl}amino]-4-(2-naphthyl)butanamide

[0846] ESI−MS: 787 [M+H]

EXAMPLE 60

[0847] (3S)-3-[N-(n-Pentyl)-{(2S)-5-benzyloxycarbonyl-2-(1-benzylindol-3-ylcarbonylamino)pentanoyl}amino]-4-(2-naphthyl) butanamide

[0848] ESI−MS: 765 [M+H]

EXAMPLE 61

[0849] (3S)-3-[N-(n-Pentyl)-{(2S)-5-benzyloxycarbonyl-2-(1-(1-naphthylmethyl)indol-3-ylcarbonylamino)pentanoyl}amino]-4-(2-naphthyl)butanamide

[0850] ESI−MS: 815 [M+H]

EXAMPLE 62

[0851] (3S)-3-[N-Isobutyl-{(2S)-5-benzyloxycarbonyl-2-(2-quinolylcarbonylamino)pentanoyl}amino]hexadecanamide

[0852] ESI−MS: 715 [M+H]

EXAMPLE 63

[0853] (3S)-3-[N-Isopentyl-{(2S)-5-benzyloxycarbonyl-2-(2-quinolylcarbonylamino)pentanoyl}amino]hexadecanamide

[0854] ESI−MS: 729 [M+H]

EXAMPLE 64

[0855] (3S)-3-[N-Ethyl-{(2S)-5-benzyloxycarbonyl-2-(1-(1-benzylindol-3-ylcarbonylamino)pentanoyl}amino]-4-(2-naphthyl)butanamide

[0856] ESI−MS: 723 [M+H]

EXAMPLE 65

[0857] (3S)-3-[N-Ethyl-{(2S)-5-benzyloxycarbonyl-2-(1-naphthylmethyl)indol-3-ylcarbonylamino)pentanoyl}amino]-4-(2-naphthyl)butanamide

[0858] ESI−MS: 773 [M+H]

EXAMPLE 66

[0859] (3S)-3-[N-Ethyl-{(2S)-5-benzyloxycarbonyl-2-(1-(2-chlorobenzyl)indol-3-ylcarbonylamino)pentanoyl}amino]-4-(2-naphthyl)butanamide

[0860] ESI−MS: 757 [M+H]

EXAMPLE 67

[0861] (3S)-3-[N-(n-Butyl)-{(2S)-5-benzyloxycarbonyl-2-(1-benzylindol-3-ylcarbonylamino)pentanoyl}amino]-4-(2-naphthyl)butanamide

[0862] ESI−MS: 751 [M+H]

EXAMPLE 68

[0863] (3S)-3-[N-(n-Butyl)-{(2S)-5-benzyloxycarbonyl-2-(1-(2-chlorobenzyl)indol-3-ylcarbonylamino)pentanoyl}amino]-4-(2-naphthyl)butanamide

[0864] ESI−MS: 785 [M+H]

EXAMPLE 69

[0865] (3S)-3-[N-(n-Propyl)-{(2S)-2-(1-benzylindol-3-ylcarbonylamino)-5-benzyloxycarbonylpentanoyl}amino]-4-(4-methylphenyl)butanamide

EXAMPLE 70

[0866] (3S)-3-[N-(n-Propyl)-{(2S)-5-benzyloxycarbonyl-2-(1-(2-chlorobenzyl)indol-3-ylcarbonylamino)pentanoyl}amino]-4-(4-methylphenyl)butanamide

EXAMPLE 71

[0867] (3S)-3-[N-(n-Propyl)-{(2S)-5-benzyloxycarbonyl-2-(1-benzylindol-3-ylcarbonylamino)pentanoyl}amino]-4-(4-n-butylphenyl)butanamide

[0868] ESI−MS: 743 [M+H]

EXAMPLE 72

[0869] (3S)-3-[N-(n-Propyl)-{(2S)-5-benzyloxycarbonyl-2-(1-(2-chlorobenzyl)indol-3-ylcarbonylamino)pentanoyl}amino]-4-(4-n-butylphenyl)butanamide

[0870] ESI−MS: 777 [M+H]

EXAMPLE 73

[0871] (3S)-3-[N-(n-Butyl)-{(2S)-5-benzyloxycarbonyl-2-(1-benzylindol-3-ylcarbonylamino)pentanoyl}amino]-4-(4-n-butylphenyl)butanamide

[0872] ESI−MS: 757 [M+H]

EXAMPLE 74

[0873] (3S)-3-[N-(n-Butyl)-{(2S)-5-benzyloxycarbonyl-2-(1-(2-chlorobenzyl)indol-3-ylcarbonylamino)pentanoyl}amino]-4-(4-n-butylphenyl)butanamide

[0874] ESI−MS: 791 [M+H]

EXAMPLE 75

[0875] (3S)-3-[N-(n-Propyl)-{(2S)-4-benzyloxycarbonyl-2-(1-(2-chlorobenzyl)indol-3-ylcarbonylamino)butanoyl}amino]-4-(2-naphthyl)butanamide

[0876] ESI−MS: 757 [M+H]

EXAMPLE 76

[0877] (3S)-3-[N-(n-Butyl)-{(2S)-5-methoxycarbonyl-2-(2-quinolylcarbonylamino)pentanoyl}amino]-4-(4-n-heptylphenyl)butanamide

[0878] ESI−MS: 667 [M+H]

EXAMPLE 77

[0879] (3S)-3-[N-(n-Butyl)-{(2S)-5-methoxycarbonyl-2-(1-(2-chlorobenzyl)indol-3-ylcarbonylamino)pentanoyl}amino]-4-(4-n-heptylphenyl)butanamide

[0880] ESI−MS: 757 [M+H]

EXAMPLE 78

[0881] (3S)-3-[(2S)-5-Benzyloxycarbonyl-2-(3-quinolylcarbonylamino)pentanoyl]oxy-10-phenyldecanamide

[0882] NMR (CDCl3, δ): 9.34 (1H, s), 8.62 (1H, s), 8.16 (1H, d, J=10 Hz), 7.90 (1H, d, J=10 Hz), 7.82 (1H, m), 7.64 (1H, m), 7.1-7.4 (11H, m), 5.94 (1H, br s), 5.50 (1H, br s), 5.35 (1H, m), 5.12 (2H, s), 4.80 (1H, m), 2.4-2.7 (6H, m), 1.5-2.15 (8H, m), 1.2-1.4 (8H, m)

[0883] FAB−MS: 652 [M+H]

EXAMPLE 79

[0884] (3S)-3-[(2S)-5-Benzyloxycarbonyl-2-(3-quinolylcarbonylamino)pentanoyl]oxy-4-(2-naphthyl)butanamide

[0885] NMR (CDCl3, δ): 9.32 (1H, d, J=2 Hz), 8.56 (1H, d, J=2 Hz), 8.15 (1H, d, J=15 Hz), 7.6-7.9 (7H, m), 7.25-7.4 (8H, m), 5.9 (1H, br s), 5.62 (1H, m), 5.40 (1H, br s), 5.10 (2H, s), 4.68 (1H, m), 3.15 (2H, d, J=7 Hz), 2.45-2.6 (2H, m), 2.15-2.4 (2H, m), 1.75-1.9 (2H, m), 1.5-1.7 (2H, m)

[0886] FAB−MS: 618 [M+H]

EXAMPLE 80

[0887] (3S)-3-[(2S)-5-Benzyloxycarbonyl-2-(isoquinolin-3-ylcarbonylamino)pentanoyl]oxy-4-(2-naphthyl)butanamide

[0888] NMR (CDCl3, δ): 9.2 (1H, s), 8.66 (1H, d, J=15 Hz), 8.56 (1H, s), 8.1 (1H, d, J=15 Hz), 8.0 (1H, d, J=15 Hz), 7.6-7.85 (5H, m), 7.25-7.4 (8H, m), 6.0 (1H, br s), 5.62 (1H, m), 5.35 (1H, br s), 5.10 (2H, s), 4.75 (1H, m), 3.15 (2H, d, J=7 Hz), 2.45-2.6 (2H, m), 2.15-2.4 (2H, m), 1.75-1.9 (2H, m), 1.5-1.7 (2H, m)

[0889] FAB−MS: 618 [M+H]

EXAMPLE 81

[0890] (3S)-3-[(2S)-5-Benzyloxycarbonyl-2-(isoquinolin-1-ylcarbonylamino)pentanoyl]oxy-4-(2-naphthyl)butanamide

[0891] NMR (CDCl3, δ): 9.5 (1H, d, J=15 Hz), 8.65 (1H, d, J=15 Hz), 8.5 (1H, d, J=10 Hz), 7.6-7.9 (10H, m), 7.2-7.4 (5H, m), 6.04 (1H, br s), 5.58 (1H, m), 5.42 (1H, br s), 5.05 (2H, s), 4.7 (1H, m), 3.12 (2H, m), 2.5 (2H, m), 2.2-2.3 (2H, m), 1.5-1.9 (2H, m)

[0892] FAB−MS: 618 [M+H]

EXAMPLE 82

[0893] (3S)-3-[(2S)-2-(2-Benzylbenzoyl)amino-5-benzyloxycarbonylpentanoyl]oxy-4-(2-naphthyl)butanamide

[0894] NMR (CDCl3, δ): 7.05-7.8 (21H, m), 6.22 (1H, d, J=10 Hz), 5.82 (1H, br s), 5.55 (1H, m), 5.26 (1H, m), 5.05 (2H, s), 4.5 (1H, m), 4.2 (2H, ABq), 3.15 (2H, t, J=7 Hz), 2.4-2.55 (2H, m), 2.05-2.25 (2H, m), 1.3-1.7 (4H, m)

[0895] ESI−MS: 657 [M+H]

EXAMPLE 83

[0896] (3S)-3-[(2S)-5-Benzyloxycarbonyl-2-(2-naphthylcarbonylamino)pentanoyl]oxy-4-(2-naphthyl)butanamide

[0897] NMR (DMSO-d6, δ): 8.9 (1H, d, J=10 Hz), 8.52 (1H, s), 7.3-8.05 (14H, m), 6.85 (1H, br s), 5.46 (1H, m), 5.08 (2H, s), 4.44 (1H, m), 3.0-3.2 (2H, m), 2.3-2.4 (4H, m), 1.5-1.9 (4H, m)

[0898] ESI−MS: 617 [M+H]

EXAMPLE 84

[0899] (3S)-3-[(2S)-2-Benzoylamino-5-benzyloxycarbonylpentanoyl]oxy-4-(2-naphthyl)butanamide

[0900] NMR (CDCl3, δ): 8.16 (1H, d, J=10 Hz), 7.3-7.85 (11H, m), 6.9 (1H, d, J=8 Hz), 5.94 (1H, br s), 5.6 (1H, m), 5.35 (1H, br s), 5.1 (2H, s), 4.12 (1H, m), 3.12 (2H, d, J=7 Hz), 2.1-2.6 (4H, m,), 1.45-1.9 (4H, m)

[0901] ESI−MS: 567 [M+H]

EXAMPLE 85

[0902] (3S)-3-[(2S)-5-Benzyloxycarbonyl-2-(2-phenethylbenzoyl)aminopentanoyl]oxy-4-(2-naphthyl)butanamide

[0903] NMR (CDCl3, δ): 7.1-7.8 (21H, m), 6.25 (1H, d, J=10 Hz), 5.78 (1H, br s), 5.6 (1H, m), 5.26 (1H, br s), 5.08 (2H, s), 4.6 (1H, m), 3.14 (2H, d, J=7 Hz), 3.0-3.1 (2H, m), 2.85-2.95 (2H, m), 2.44 (2H, d, J=7 Hz), 2.1-2.3 (2H, m), 1.45-1.8 (4H, m)

[0904] ESI−MS: 671 [M+H]

EXAMPLE 86

[0905] (3S)-3-[(2S)-2-(3-Benzylbenzoyl)amino-5-benzyloxycarbonylpentanoyl]oxy-4-(2-naphthyl)butanamide

[0906] NMR (CDCl3, δ): 8.1 (1H, m), 7.1-7.75 (20H, m), 6.92 (1H, d, J=8 Hz), 5.92 (1H, br s), 5.55 (1H, m), 5.36 (1H, br s), 5.05 (2H, s), 4.56 (1H, m), 4.02 (2H, s), 3.1 (2H, d, J=7 Hz), 2.4-2.55 (2H, m), 2.05-2.3 (2H, m), 1.4-1.8 (4H, m)

[0907] ESI−MS: 657 [M+H]

EXAMPLE 87

[0908] (3S)-3-[(2S)-2-(3-Benzylnaphthalen-2-ylcarbonyl)amino-5-benzyloxycarbonylpentanoyl]oxy-4-(6-ethyl-2-naphthyl)-butanamide

[0909] NMR (CDCl3, δ): 7.05-7.85 (22H, m), 6.32 (1H, d, J=10 Hz), 5.82 (1H, br s), 5.55 (1H, m), 5.26 (1H, m), 5.05 (2H, s), 4.45 (1H, m), 4.32 (2H, ABq), 3.15 (2H, t, J=7 Hz), 2.75 (2H, q, J=7 Hz), 2.4-2.55 (2H, m), 2.05-2.25 (2H, m), 1.3-1.7 (4H, m), 1.26 (3H, t, J=7 Hz)

[0910] ESI−MS: 735 [M+H]

EXAMPLE 88

[0911] 3-[N-Methyl-{(2S)-2-(3-benzylnaphthalen-2-ylcarbonyl)-amino-5-benzyloxycarbonylpentanoyl}amino]propanamide

[0912] ESI−MS: 580 [M+H]

EXAMPLE 89

[0913] (3S)-3-[N-(n-Pentyl)-{(2S)-2-(1-benzylindol-3-ylcarbonyl)amino-5-benzyloxycarbonylpentanoyl}amino]-dodecanamide

[0914] ESI−MS: 751 [M+H]

EXAMPLE 90

[0915] (3S)-3-[N-(n-Propyl)-{(2S)-2-(1-benzylindol-3-yl-carbonyl)amino-5-methoxycarbonylpentanoyl}amino]dodecanamide

[0916] ESI−MS: 647 [M+H]

EXAMPLE 91

[0917] (3S)-3-[N-(n-Propyl)-{(2S)-2-(1-(2-chlorobenzyl)indol-3-ylcarbonyl)amino-5-methoxycarbonylpentanoyl}amino]-dodecanamide

[0918] ESI−MS: 681 [M+H]

EXAMPLE 92

[0919] (3S)-3-[N-(n-Pentyl)-{(2S)-2-(1-benzylindol-3-yl-carbonyl)amino-5-benzyloxycarbonylpentanoyl}amino]nonanamide

[0920] ESI−MS: 709 [M+H]

EXAMPLE 93

[0921] (3S)-3-[N-(n-Butyl)-{(2S)-2-(1-benzylindol-3-yl-carbonyl)amino-5-benzyloxycarbonylpentanoyl}amino]nonanamide

[0922] ESI−MS: 695 [M+H]

EXAMPLE 94

[0923] (3S)-3-[N-(n-Butyl)-{(2S)-5-benzyloxycarbonyl-2-(1-(2-chlorobenzyl)indol-3-ylcarbonylamino)pentanoyl}amino]-nonanamide

[0924] ESI−MS: 729 [M+H]

EXAMPLE 95

[0925] (3S)-3-[N-(n-Propyl)-{(2S)-2-(1-benzylindol-3-yl-carbonyl)amino-5-benzyloxycarbonylpentanoyl}amino]nonanamide

[0926] ESI−MS: 681 [M+H]

EXAMPLE 96

[0927] (3S)-3-[N-(n-Propyl)-{(2S)-5-benzyloxycarbonyl-2-[(1-(1-naphthylmethyl)indol-3-ylcarbonyl)amino]pentanoyl}amino]-nonanamide

[0928] ESI−MS: 731 [M+H]

EXAMPLE 97

[0929] (3S)-3-[N-(n-Propyl)-{(2S)-5-benzyloxycarbonyl-2-[(1-(2-pyridylmethyl)indol-3-ylcarbonyl)amino]pentanoyl}amino]-nonanamide

[0930] ESI−MS: 682 [M+H]

EXAMPLE 98

[0931] (3S)-3-[N-(n-Propyl)-{(2S)-5-benzyloxycarbonyl-2-[(1-(2-chlorobenzyl)indol-3-ylcarbonyl)amino]pentanoyl}amino]-nonanamide

[0932] ESI−MS: 715 [M+H]

EXAMPLE 99

[0933] (3S)-3-[N-(n-Propyl)-{(2S)-5-benzyloxycarbonyl-2-[(1-(3-chlorobenzyl)indol-3-ylcarbonyl)amino]pentanoyl}amino]-nonanamide

[0934] ESI−MS: 715 [M+H]

EXAMPLE 100

[0935] (3S)-3-[N-Ethyl-{(2S)-2-(1-(2-chlorobenzyl)indol-3-ylcarbonyl)amino-5-methoxycarbonylpentanoyl}amino]nonanamide

[0936] ESI−MS: 625 [M+H]

EXAMPLE 101

[0937] (3S)-3-[N-Ethyl-{(2S)-2-(1-benzylindol-3-ylcarbonyl)amino-5-methoxycarbonylpentanoyl}amino]nonanamide

[0938] ESI−MS: 591 [M+H]

EXAMPLE 102

[0939] (3S)-3-[N-(n-Propyl)-{(2S)-2-(1-(2-chlorobenzyl)indol-3-ylcarbonyl)amino-5-benzyloxycarbonylpentanoyl}amino]-heptanamide

[0940] ESI−MS: 687 [M+H]

EXAMPLE 103

[0941] (3S)-3-[N-(n-Propyl)-{(2S)-2-(1-(1-naphthylmethyl)indol-3-ylcarbonyl)amino-5-benzyloxycarbonylpentanoyl}amino]-heptanamide

[0942] ESI−MS: 703 [M+H]

EXAMPLE 104

[0943] (3S)-3-[N-(n-Butyl)-{(2S)-2-(1-(2-chlorobenzyl)indol-3-ylcarbonyl)amino-5-methoxycarbonylpentanoyl}amino]-heptanamide

[0944] ESI−MS: 625 [M+H]

EXAMPLE 105

[0945] (3S)-3-[N-(n-Butyl)-{(2S)-2-(1-(1-naphthylmethyl)indol-3-ylcarbonyl)amino-5-methoxycarbonylpentanoyl}amino]-heptanamide

[0946] ESI−MS: 641 [M+H]

EXAMPLE 106

[0947] (3S)-3-[N-(n-Propyl)-{(2S)-5-benzyloxycarbonyl-2-(1-(2-pyridylmethyl)indol-3-ylcarbonylamino)pentanoyl}amino]-4-(6-ethyl-2-naphthyl)butanamide

[0948] ESI−MS: 766 [M+H]

EXAMPLE 107

[0949] (3S)-3-[N-(n-Propyl)-{(2S)-2-(1-benzylindol-3-ylcarbonyl)amino-5-benzyloxycarbonylpentanoyl}amino]-4-(6-ethyl-2-naphthyl)butanamide

[0950] ESI−MS: 765 [M+H]

EXAMPLE 108

[0951] (3S)-3-[N-(n-Butyl)-{(2S)-5-benzyloxycarbonyl-2-[(1-benzylindol-3-ylcarbonyl)amino]pentanoyl}amino]-4-(6-ethyl-2-naphthyl)butanamide

[0952] ESI−MS: 779 [M+H]

EXAMPLE 109

[0953] (3S)-3-[N-(n-Butyl)-{(2S)-5-benzyloxycarbonyl-2-[(1-(2-chlorobenzyl)indol-3-ylcarbonyl)amino]pentanoyl}amino]-4-(6-ethyl-2-naphthyl)butanamide

[0954] ESI−MS: 813 [M+H]

EXAMPLE 110

[0955] (3S)-3-[N-(2-Pyridylmethyl)-{(2S)-5-benzyloxycarbonyl-2-(tert-butoxycarbonylamino)pentanoyl}amino]hexadecanamide

[0956] ESI−MS: 695 [M+H]

EXAMPLE 111

[0957] (3S)-3-[N-Benzyl-{(2S)-5-benzyloxycarbonyl-2-(tert-butoxycarbonylamino)pentanoyl}amino]hexadecanamide

[0958] ESI−MS: 694 [M+H]

EXAMPLE 112

[0959] (3S)-3-[N-(n-Pentyl)-{(2S)-5-benzyloxycarbonyl-2-(tert-butoxycarbonylamino)pentanoyl}amino]hexadecanamide

[0960] ESI−MS: 674 [M+H]

EXAMPLE 113

[0961] (3S)-3-[N-Phenethyl-{(2S)-5-benzyloxycarbonyl-2-(tert-butoxycarbonylamino)pentanoyl}amino]hexadecanamide

[0962] ESI−MS: 708 [M+H]

EXAMPLE 114

[0963] (3S)-3-[N-(n-Butyl)-{(2S)-5-benzyloxycarbonyl-2-(tert-butoxycarbonylamino)pentanoyl}amino]hexadecanamide

[0964] ESI−MS: 660 [M+H]

EXAMPLE 115

[0965] (3S)-3-[N-Ethyl-{(2S)-5-benzyloxycarbonyl-2-(tert-butoxycarbonylamino)pentanoyl}amino]hexadecanamide

[0966] ESI−MS: 632 [M+H]

EXAMPLE 116

[0967] (3S)-3-[N-(n-Propyl)-{(2S)-5-benzyloxycarbonyl-2-(tert-butoxycarbonylamino)pentanoyl}amino]-4-(2-naphthyl)butanamide

[0968] ESI−MS: 604 [M+H]

EXAMPLE 117

[0969] (3S)-3-[N-(n-Pentyl)-{(2S)-5-benzyloxycarbonyl-2-(tert-butoxycarbonylamino)pentanoyl}amino]-4-(2-naphthyl)butanamide

[0970] ESI−MS: 632 [M+H]

EXAMPLE 118

[0971] (3S)-3-[N-Isobutyl-{(2S)-5-benzyloxycarbonyl-2-(tert-butoxycarbonylamino)pentanoyl}amino]hexadecanamide

[0972] ESI−MS: 660 [M+H]

EXAMPLE 119

[0973] (3S)-3-[N-Isopentyl-{(2S)-5-benzyloxycarbonyl-2-(tert-butoxycarbonylamino)pentanoyl}amino]hexadecanamide

[0974] ESI−MS: 674 [M+H]

EXAMPLE 120

[0975] (3S)-3-[N-Ethyl-{(2S)-5-benzyloxycarbonyl-2-(tert-butoxycarbonylamino)pentanoyl}amino]-4-(2-naphthyl)butanamide

[0976] ESI−MS: 590 [M+H]

EXAMPLE 121

[0977] (3S)-3-[N-(n-Butyl)-{(2S)-5-benzyloxycarbonyl-2-(tert-butoxycarbonylamino)pentanoyl}amino]-4-(2-naphthyl)butanamide

[0978] ESI−MS: 618 [M+H]

EXAMPLE 122

[0979] (3S)-3-[N-(n-Propyl)-{(2S)-5-benzyloxycarbonyl-2-(tert-butoxycarbonylamino)pentanoyl}amino]-4-(4-methylphenyl)-butanamide

[0980] ESI−MS: 568 [M+H]

EXAMPLE 123

[0981] (3S)-3-[N-(n-Propyl)-{(2S)-5-benzyloxycarbonyl-2-(tert-butoxycarbonylamino)pentanoyl}amino]-4-(4-n-butylphenyl)-butanamide

[0982] ESI−MS: 610 [M+H]

EXAMPLE 124

[0983] (3S)-3-[N-(n-Propyl)-{(2S)-4-benzyloxycarbonyl-2-(tert-butoxycarbonylamino)butanoyl}amino]-4-(2-naphthyl)butanamide

[0984] ESI−MS: 590 [M+H]

EXAMPLE 125

[0985] (3S)-3-[N-(n-Butyl)-{(2S)-2-(tert-butoxycarbonyl)amino-5-methoxycarbonylpentanoyl}amino]-4-(4-n-heptylphenyl)-butanamide

[0986] ESI−MS: 590 [M+H]

EXAMPLE 126

[0987] 3-[N-Methyl-{(2S)-5-benzyloxycarbonyl-2-(tert-butoxycarbonylamino)pentanoyl}amino]propanamide

[0988] ESI−MS: 436 [M+H]

EXAMPLE 127

[0989] (3S)-3-[N-(n-Pentyl)-{(2S)-5-benzyloxycarbonyl-2-(tert-butoxycarbonylamino)pentanoyl}amino]dodecanamide

[0990] ESI−MS: 618 [M+H]

EXAMPLE 128

[0991] (3S)-3-[N-(n-Propyl)-{(2S)-2-(tert-butoxycarbonyl)amino-5-methoxycarbonylpentanoyl}amino]dodecanamide

[0992] ESI−MS: 514 [M+H]

EXAMPLE 129

[0993] (3S)-3-[N-(n-Pentyl)-{(2S)-5-benzyloxycarbonyl-2-(tert-butoxycarbonylamino)pentanoyl}amino]nonanamide

[0994] ESI−MS: 576 [M+H]

EXAMPLE 130

[0995] (3S)-3-[N-(n-Butyl)-{(2S)-5-benzyloxycarbonyl-2-(tert-butoxycarbonylamino)pentanoyl}amino]nonanamide

[0996] ESI−MS: 562 [M+H]

EXAMPLE 131

[0997] (3S)-3-[N-(n-Propyl)-{(2S)-5-benzyloxycarbonyl-2-(tert-butoxycarbonylamino)pentanoyl}amino]nonanamide

[0998] ESI−MS: 548 [M+H]

EXAMPLE 132

[0999] (3S)-3-[N-Ethyl-{(2S)-2-(tert-butoxycarbonyl)amino-5-methoxycarbonylpentanoyl}amino]nonanamide

[1000] ESI−MS: 458 [M+H]

EXAMPLE 133

[1001] (3S)-3-[N-(n-Propyl)-{(2S)-5-benzyloxycarbonyl-2-(tert-butoxycarbonylamino)pentanoyl}amino]heptanamide

[1002] ESI−MS: 520 [M+H]

EXAMPLE 134

[1003] (3S)-3-[N-(n-Butyl)-{(2S)-2-(tert-butoxycarbonyl)amino-5-methoxycarbonylpentanoyl}amino]heptanamide

[1004] ESI−MS: 458 [M+H]

EXAMPLE 135

[1005] (3S)-3-[N-(n-Propyl)-{(2S)-5-benzyloxycarbonyl-2-(tert-butoxycarbonylamino)pentanoyl}amino]-4-(6-ethyl-2-naphthyl)-butanamide

[1006] ESI−MS: 632 [M+H]

EXAMPLE 136

[1007] (3S)-3-[N-(n-Butyl)-{(2S)-5-benzyloxycarbonyl-2-(tert-butoxycarbonylamino)pentanoyl}amino]-4-(6-ethyl-2-naphthyl)-butanamide

[1008] ESI−MS: 646 [M+H]

[1009] The following compounds (Examples 137 to 194) were obtained according to a similar manner to that of Example 21.

EXAMPLE 137

[1010] (3S)-3-[N-(n-Propyl)-{(2S)-4-carboxy-2-[(1-(2-chlorobenzyl)indol-3-ylcarbonyl)amino]butanoyl}amino]-4-(2-naphthyl)butanamide

[1011] ESI−MS: 667 [M+H]

[1012] mp: 85-92° C.

EXAMPLE 138

[1013] (3S)-3-[N-(n-Butyl)-{(2S)-5-carboxy-2-[(1-(2-chlorobenzyl)indol-3-ylcarbonyl)amino]pentanoyl}amino]-4-(4-n-butylphenyl)butanamide

[1014] ESI−MS: 701 [M+H]

[1015] mp: 166-168° C.

EXAMPLE 139

[1016] (3S)-3-[N-(n-Butyl)-{(2S)-5-carboxy-2-[(1-benzylindol-3-ylcarbonyl)amino]pentanoyl}amino]-4-(4-n-butylphenyl)-butanamide

[1017] ESI−MS: 667 [M+H]

[1018] mp: 77-82° C.

EXAMPLE 140

[1019] (3S)-3-[N-(n-Propyl)-{(2S)-5-carboxy-2-[(1-(2-chlorobenzyl)indol-3-ylcarbonyl)amino]pentanoyl}amino]-4-(4-n-butylphenyl)butanamide

[1020] ESI−MS: 685 [M−H]

[1021] mp: 83-87° C.

EXAMPLE 141

[1022] (3S)-3-[N-(n-Propyl)-{(2S)-5-carboxy-2-[(1-benzylindol-3-ylcarbonyl)amino]pentanoyl}amino]-4-(4-n-butylphenyl)-butanamide

[1023] ESI−MS: 651 [M−H]

[1024] mp: 82-88° C.

EXAMPLE 142

[1025] (3S)-3-[N-(n-Propyl)-{(2S)-5-carboxy-2-[(1-(2-chlorobenzyl)indol-3-ylcarbonyl)amino]pentanoyl}amino]-4-(4-methylphenyl)butanamide

[1026] ESI−MS: 643 [M−H]

[1027] mp: 79-96° C.

EXAMPLE 143

[1028] (3S)-3-[N-(n-Propyl)-{(2S)-2-(1-benzylindol-3-ylcarbonyl)amino-5-carboxypentanoyl}amino]-4-(4-methylphenyl)butanamide

[1029] ESI−MS: 609 [M−H]

[1030] mp: 83-92° C.

EXAMPLE 144

[1031] (3S)-3-[N-(n-Butyl)-{(2S)-5-carboxy-2-[(1-(2-chlorobenzyl)indol-3-ylcarbonyl)amino]pentanoyl}amino]-4-(2-naphthyl)butanamide

[1032] ESI−MS: 693 [M−H]

[1033] mp 104-110° C.

EXAMPLE 145

[1034] (3S)-3-[N-(n-Butyl)-{(2S)-5-carboxy-2-[(1-benzylindol-3-ylcarbonyl)amino]pentanoyl}amino]-4-(2-naphthyl)butanamide

[1035] ESI−MS: 659 [M−H]

[1036] mp: 90-96° C.

EXAMPLE 146

[1037] (3S)-3-[N-Ethyl-{(2S)-5-carboxy-2-[(1-(2-chlorobenzyl)indol-3-ylcarbonyl)amino]pentanoyl}amino]-4-(2-naphthyl)butanamide

[1038] ESI−MS: 665 [M−H]

[1039] mp: 110-114° C.

EXAMPLE 147

[1040] (3S)-3-[N-Ethyl-{(2S)-5-carboxy-2-[(1-(1-naphthylmethyl)indol-3-ylcarbonyl)amino]pentanoyl}amino]-4-(2-naphthyl)butanamide

[1041] ESI−MS: 681 [M−H]

[1042] mp: 118-126° C.

EXAMPLE 148

[1043] (3S)-3-[N-Isopentyl-{(2S)-5-carboxy-2-(2-quinolylcarbonylamino)pentanoyl}amino]hexadecanamide

[1044] ESI−MS: 639 [N+H]

EXAMPLE 149

[1045] (3S)-3-[N-Isobutyl-{(2S)-5-carboxy-2-(2-quinolylcarbonylamino)pentanoyl}amino]hexadecanamide

[1046] ESI−MS: 625 [M+H]

[1047] mp: 65-66° C.

EXAMPLE 150

[1048] (3S)-3-[N-Phenethyl-{(2S)-5-carboxy-2-(2-quinolylcarbonylamino)pentanoyl}amino]hexadecanamide

[1049] ESI−MS: 673 [M+H]

EXAMPLE 151

[1050] (3S)-3-[N-Ethyl-{(2S)-5-carboxy-2-(1-benzylindol-3-ylcarbonylamino)pentanoyl}amino]-4-(2-naphthyl)butanamide

[1051] ESI−MS: 631 [M−H]

[1052] mp: 110-112° C.

EXAMPLE 152

[1053] (3S)-3-[N-(n-Pentyl)-{(2S)-5-carboxy-2-[(1-benzylindol-3-ylcarbonyl)amino]pentanoyl}amino]-4-(2-naphthyl)butanamide

[1054] ESI−MS: 675 [M+H]

[1055] mp: 89-93° C.

EXAMPLE 153

[1056] (3S)-3-[N-(n-Pentyl)-{(2S)-5-carboxy-2-[(1-(1-naphthylmethyl)indol-3-ylcarbonyl)amino]pentanoyl}amino]-4-(2-naphthyl)butanamide

[1057] ESI−MS: 725 [M+H]

[1058] mp: 112-116° C.

EXAMPLE 154

[1059] (3S)-3-[N-(n-Propyl)-{(2S)-5-carboxy-2-[(1-(1-naphthylmethyl)indol-3-ylcarbonyl)amino]pentanoyl}amino]-4-(2-naphthyl)butanamide

[1060] ESI−MS: 697 [M+H]

[1061] mp: 123-126° C.

EXAMPLE 155

[1062] (3S)-3-[N-(n-Propyl)-{(2S)-2-(1-benzylindol-3-ylcarbonyl)amino-5-carboxypentanoyl}amino]-4-(2-naphthyl)butanamide

[1063] ESI−MS: 647 [M+H]

[1064] mp: 91-94° C.

EXAMPLE 156

[1065] (3S)-3-[N-(2-Pyridylmethyl)-{(2S)-5-carboxy-2-(2-quinolylcarbonylamino)pentanoyl}amino]hexadecanamide dihydrochloride

[1066] ESI−MS: 660 [M+H]

[1067] mp: 74-81° C.

EXAMPLE 157

[1068] (3S)-3-[N-Ethyl-{(2S)-5-carboxy-2-(2-quinolylcarbonylamino)pentanoyl}amino]hexadecanamide

[1069] ESI−MS: 660 [M+H]

EXAMPLE 158

[1070] (3S)-3-[N-(n-Propyl)-{(2S)-5-carboxy-2-(2-quinolylcarbonylamino)pentanoyl}amino]hexadecanamide hydrochloride

[1071] mp: 59-62° C.

EXAMPLE 159

[1072] (3S)-3-[N-(n-Butyl)-{(2S)-5-carboxy-2-(2-quinolylcarbonylamino)pentanoyl}amino]hexadecanamide

[1073] ESI−MS: 625 [M+H]

EXAMPLE 160

[1074] (3S)-3-[N-(n-Pentyl)-{(2S)-5-carboxy-2-(2-quinolylcarbonylamino)pentanoyl}amino]hexadecanamide

[1075] ESI−MS: 639 [M+H]

EXAMPLE 161

[1076] (3S)-3-[N-Benzyl-{(2S)-5-carboxy-2-(2-quinolylcarbonylamino)pentanoyl}amino]hexadecanamide

[1077] ESI−MS: 659 [M+H]

EXAMPLE 162

[1078] (3S)-3-[N-(2-Pyridylmethyl)-{(2S)-5-carboxy-2-(2-quinolylcarbonylamino)pentanoyl}amino]hexadecanamide

[1079] ESI−MS: 660 [M+H]

EXAMPLE 163

[1080] (3S)-3-[(2S)-5-Carboxy-2-[{1-(4-methylbenzyl)indol-3-ylcarbonyl}amino]pentanoyl]oxy-4-(2-naphthyl)butanamide

[1081] NMR (DMSO-d6, δ): 8.13-8.28 (3H, m), 7.70-7.86 (4H, m), 7.34-7.57 (5H, m), 7.08-7.23 (6H, m), 6.85 (1H, br s), 5.42 (2H, s), 5.39 (1H, m), 4.40 (1H, m), 2.96-3.16 (2H, m), 2.29-2.38 (2H, m), 2.25 (3H, s), 2.11-2.20 (2H, m), 1.44-1.83 (4H, m)

[1082] ESI−MS: 620 [M+H]

EXAMPLE 164

[1083] (3S)-3-[(2S)-5-Carboxy-2-[{1-(4-chlorobenzyl)indol-3-ylcarbonyl}amino]pentanoyl]oxy-4-(2-naphthyl)butanamide

[1084] NMR (DMSO-d6, δ): 8.12-8.28 (3H, m), 7.72-7.87 (4H, m), 7.32-7.57 (6H, m), 7.10-7.31 (4H, m), 6.85 (1H, br s), 5.49 (2H, s), 5.42 (1H, m), 4.42 (1H, m), 2.95-3.16 (2H, m), 2.29-2.38 (2H, m), 2.12-2.22 (2H, m), 1.45-1.84 (4H, m)

[1085] ESI−MS: 640 [M+H]

EXAMPLE 165

[1086] (3S)-3-[(2S)-5-Carboxy-2-[{1-(4-methylbenzyl)indol-2-ylcarbonyl}amino]pentanoyl]oxy-4-(2-naphthyl)butanamide

[1087] ESI−MS: 620 [M+H]

[1088] mp: 86-90° C.

EXAMPLE 166

[1089] (3S)-3-[(2S)-5-Carboxy-2-(2-quinolylcarbonylamino)-pentanoyl]oxy-5-(2-naphthyl)pentanamide

[1090] NMR (DMSO-d6, δ): 9.12 (1H, d, J=8 Hz), 8.60 (1H, d, J=8 Hz), 8.22 (1H, t, J=8 Hz), 8.20 (1H, d, J=9 Hz), 8.12 (1H, d, J=8 Hz), 7.90 (1H, t, J=8 Hz), 7.68-7.86 (4H, m), 7.62 (1H, br s), 7.38-7.46 (3H, m), 6.88 (1H, br s), 5.20 (1H, m), 4.54 (1H, m), 2.70-2.86 (2H, m), 2.42-2.49 (2H, m), 2.27 (3H, t, J=7 Hz), 1.87-2.04 (4H, m), 1.53-1.67 (2H, m)

EXAMPLE 167

[1091] (3S)-3-[(2S)-2-(3-Benzylnaphthalen-2-ylcarbonyl)amino-5-carboxypentanoyl]oxy-4-(4-n-heptylphenyl)butanamide

[1092] NMR (DMSO-d6, δ): 8.82 (1H, d, J=7 Hz), 7.95 (1H, m), 7.93 (1H, s), 7.85 (1H, m), 7.75 (1H, s), 7.47-7.59 (2H, m), 7.38 (1H, br s), 7.05-7.28 (9H, m), 6.86 (1H, br s), 5.32 (1H, m), 4.37 (1H, d, J=14 Hz), 4.33 (1H, m), 4.29 (1H, d, J=14 Hz), 2.78-2.96 (2H, m), 2.24-2.40 (2H, m), 2.12-2.21 (2H, m), 1.42-1.75 (6H, m), 1.13-1.35 (8H, m), 0.78-0.88 (3H, m)

[1093] ESI−MS: 665 [M+H]

EXAMPLE 168

[1094] (3S)-3-[(2S)-5-Carboxy-2-[2-((2E)-2-methoxycarbonyl-vinyl)benzoylamino]pentanoyl]oxy-4-(2-naphthyl)butanamide

[1095] NMR (DMSO-d6, δ): 8.92 (1H, d, J=7 Hz), 7.77-7.98 (6H, m), 7.42-7.57 (6H, m), 7.37 (1H, br s), 6.88 (1H, br s), 6.59 (1H, d, J=16 Hz), 5.43 (1H, m), 4.23 (1H, m), 3.66 (3H, s), 3.16 (1H, dd, J=14, 6 Hz), 3.06. (1H, dd, J=14, 6 Hz), 2.37 (2H, d, J=7 Hz), 2.15 (3H, t, J=7 Hz), 1.42-1.75 (4H, m)

[1096] ESI−MS: 561 [M+H]

EXAMPLE 169

[1097] (3S)-3-[(2S)-5-Carboxy-2-[2-(carboxymethyl)-benzoylamino]pentanoyl]oxy-4-(2-naphthyl)butanamide

[1098] NMR (DMSO-6, δ): 8.75 (1H, d, J=7 Hz), 7.81-7.92 (3H, m), 7.77 (1H, s), 7.22-7.54 (8H, m), 6.86 (1H, br s), 5.42 (1H, m), 4.30 (1H, m), 3.83 (1H, d, J=16 Hz), 3.71 (1H, d, J=16 Hz), 3.13 (1H, dd, J=14, 5 Hz), 3.03 (1H, dd, J=14, 6 Hz), 2.36 (2H, d, J=7 Hz), 2.13 (3H, t J=7 Hz), 1.43-1.74 (4H, m)

[1099] ESI−MS: 535 [M+H]

EXAMPLE 170

[1100] (3S)-3-[(2S)-5-Carboxy-2-[2-(methoxycarbonylmethyl)-benzoylamino]pentanoyl]oxy-4-(2-naphthyl)butanamide

[1101] NMR (DMSO-6, δ): 8.71 (1H, d, J=7 Hz), 7.75-7.92 (4H, m), 7.28-7.54 (8H, m), 6.87 (1H, br s), 5.42 (1H, m), 4.28 (1H, m), 3.91 (1H, d, J=16 Hz), 3.81 (1H, d, J=16 Hz), 3.53 (3H, s), 3.13 (1H, dd, J=14, 5 Hz), 3.04 (1H, dd, J=14, 6 Hz), 2.36 (2H, d, J=7 Hz), 2.14 (3H, t, J=7 Hz), 1.42-1.74 (4H, m)

[1102] ESI−MS: 549 [M+H]

EXAMPLE 171

[1103] (3S)-3-[(2S)-5-Carboxy-2-(3-quinolylcarbonylamino)-pentanoyl]oxy-4-(2-naphthyl)butanamide

[1104] NMR (CDCl3-CD3OD, δ): 9.36 (1H, s), 8.72 (1H, s), 8.15 (1H, d, J=15 Hz), 7.94 (1H, d, J=15 Hz), 7.6-7.9 (6H, m), 7.3-7.45 (3H, m), 5.6 (1H, m), 4.62 (1H, m), 3.15 (2H, d, J=7 Hz), 2.4-2.6 (2H, m), 2.1-2.4 (2H, m), 1.75-1.9 (2H, m), 1.5-1.6 (2H, m)

EXAMPLE 172

[1105] (3S)-3-[2S)-5-Carboxy-2-(isoquinolin-3-ylcarbonyl-amino)pentanoyl]oxy-4-(2-naphthyl)butanamide

[1106] NMR (CDCl3, δ): 9.1 (1H, s), 8.7 (1H, d, J=l5 Hz), 8.50 (1H, s), 7.9-8.05 (2H, m), 7.6-7.8 (5H, m), 7.25-7.4 (3H, m), 6.9 (1H, br s), 6.3 (1H, br s), 5.06 (1H, m), 4.8 (1H, m), 3.0-3.3 (2H, m), 2.4-2.6 (2H, m), 2.1-2.4 (2H, m), 1.75-1.9 (2H, m), 1.5-1.6 (2H, m)

[1107] FAB−MS: 528 [M+H]

EXAMPLE 173

[1108] (3S)-3-[(2S)-5-Carboxy-2-(isoquinolin-1-ylcarbonylamino)pentanoyl]oxy-4-(2-naphthyl)butanamide

[1109] NMR (CDCl3-CD3OD, δ): 9.45 (1H, d, J=10 Hz), 8.72 (1H, d, J=10 Hz), 8.4 (1H, d, J=7 Hz), 7.6-7.9 (11H, m), 7.0 (1H, br s), 6.4 (1H, br s), 5.6 (1H, m), 4.7 (1H, m), 3.0-3.3 (2H, m), 2.4-2.6 (2H, m), 2.1-2.4 (2H, m), 1.75-1.9 (2H, m), 1.5-1.6 (2H, m)

[1110] FAB−MS: 528 [M+H]

EXAMPLE 174

[1111] (3S)-3-[(2S)-2-(2-Benzylbenzoyl)amino-5-carboxypentanoyl]oxy-4-(2-naphthyl)butanamide

[1112] NMR (DMSO-d6, δ): 8.75 (1H, d, J=10 Hz), 7.1-7.9 (17H, m), 6.88 (1H, br s), 5.4 (1H, m), 4.32 (1H, m), 4.1 (2H, ABq), 2.95-3.15 (2H, m), 2.32 (2H, d, J=7 Hz), 2.1 (2H, m), 1.4-1.7 (4H, m)

[1113] ESI−MS: 567 [M+H]

EXAMPLE 175

[1114] (3S)-3-[(2S)-5-Carboxy-2-(2-naphthylcarbonylamino)-pentanoyl]oxy-4-(2-naphthyl)butanamide

[1115] NMR (DMSO-d6, δ): 8.9 (1H, d, J=10 Hz), 8.52 (1H, s), 7.35-8.1 (14H, m), 6.9 (1H, br s), 5.45 (1H, m), 4.44 (1H, m), 3.0-3.2 (2H, m), 2.35 (2H, d, J=7 Hz), 2.2 (2H, t, J=7 Hz), 1.7-1.85 (2H, m), 1.5-1.7 (2H, m)

[1116] ESI−MS: 527 [M+H]

EXAMPLE 176

[1117] (3S)-3-[(2S)-2-Benzoylamino-5-carboxypentanoyl]oxy-4-(2-naphthyl)butanamide

[1118] NMR (DMSO-d6, δ): 8.74 (1H, d, J=10 Hz), 7.3-8.0 (13H, m), 6.88 (1H, br s), 5.4 (1H, m), 4.4 (1H, m), 3.0-3.2 (2H, m), 2.32 (2H, d, J=7 Hz), 2.18 (2H, t, J=7 Hz), 1.4-1.8 (4H, m)

[1119] ESI−MS: 477 [M+H]

EXAMPLE 177

[1120] (3S)-3-[(2S)-5-Carboxy-2-(2-phenethylbenzoylamino)-pentanoyl]oxy-4-(2-naphthyl)butanamide

[1121] NMR (CDCl3, δ): 8.8 (1H, d, J=10 Hz), 7.1-7.9 (17H, m), 6.85 (1H, br s), 5.44 (1H, m), 4.36 (1H, m), 2.8-3.2 (6H, m), 2.35 (2H, d, J=7 Hz), 2.18 (2H, t, J=7 Hz), 1.45-1.8 (4H, m)

[1122] ESI−MS: 581 [M+H]

EXAMPLE 178

[1123] (3S)-3-[(2S)-2-(3-Benzylbenzoyl)amino-5-carboxypentanoyl]oxy-4-(2-naphthyl)butanamide

[1124] NMR (DMSO-d6, δ): 8.75 (1H, d, J=10 Hz), 7.1-7.9 (17H, m), 6.88 (1H, br s), 5.45 (1H, m), 4.4 (1H, m), 4.04 (2H, s), 2.95-3.15 (2H, m), 2.32 (2H, d, J=7 Hz), 2.2 (2H, t, J=7 Hz), 1.4-1.7 (4H, m)

[1125] ESI−MS: 567 [M+H]

EXAMPLE 179

[1126] (3S)-3-[(2S)-2-Benzylnaphthalen-2-ylcarbonyl)amino-5-carboxypentanoyl]oxy-4-(6-ethyl-2-naphthyl)butanamide

[1127] NMR (DMSO-d6, δ): 8.82 (1H, d, J=10 Hz), 7.1-7.9 (18H, m), 8.86 (1H, br s), 5.4 (1H, m), 4.32 (1H, m), 4.26 (2H, ABq), 3.0-3.15 (2H, m), 2.72 (2H, q, J=7 Hz), 2.36 (2H, d, J=7 Hz), 2.12 (2H, t, J=7 Hz), 1.4-1.7 (4H, m), 1.22 (3H, t, J=7 Hz)

[1128] ESI−MS: 645 [M+H]

EXAMPLE 180

[1129] 3-[N-Methyl-{(2S)-2-(3-benzylnaphthalen-2-ylcarbonyl)amino-5-carboxypentanoyl}amino]propanamide

[1130] ESI−MS: 488 [M−H]

[1131] mp: 147-157° C.

EXAMPLE 181

[1132] (3S)-3-[N-(n-Pentyl)-{(2S)-2-(1-benzylindol-3-ylcarbonyl)amino-5-carboxypentanoyl}amino]dodecanamide

[1133] ESI−MS: 661 [M+H]

[1134] mp: 125-127° C.

EXAMPLE 182

[1135] (3S)-3-[N-(n-Pentyl)-{(2S)-2-(1-benzylindol-3-ylcarbonyl)amino-5-carboxypentanoyl}amino]nonanamide

[1136] ESI−MS: 619 [M+H]

[1137] mp: 127-129° C.

EXAMPLE 183

[1138] (3S)-3-[N-(n-Butyl)-{(2S)-5-carboxy-2-[ (1-benzylindol-3-ylcarbonyl)amino]pentanoyl}amino]nonanamide

[1139] ESI−MS: 605 [M+H]

[1140] mp: 124-127° C.

EXAMPLE 184

[1141] (3S)-3-[N-(n-Butyl)-{(2S)-5-carboxy-2-[(1-(2-chloro-benzyl)indol-3-ylcarbonyl)amino]pentanoyl}amino]nonanamide

[1142] ESI−MS: 639 [M+H]

[1143] mp: 153-156° C.

EXAMPLE 185

[1144] (3S)-3-[N-(n-Propyl)-{(2S)-5-carboxy-2-[(1-(3-chloro-benzyl)indol-3-ylcarbonyl)amino]pentanoyl}amino]nonanamide

[1145] ESI−MS: 625 [M+H]

[1146] mp: 106-109° C.

EXAMPLE 186

[1147] (3S)-3-[N-(n-Propyl)-{(2S)-5-carboxy-2-[(1-(1-naphthyl-methyl)indol-3-ylcarbonyl)amino]pentanoyl}amino]nonanamide

[1148] ESI−MS: 641 [M+H]

[1149] mp: 139-141° C.

EXAMPLE 187

[1150] (3S)-3-[N-(n-Propyl)-{(2S)-5-carboxy-2-[(1-(2-pyridyl-methyl)indol-3-ylcarbonyl)amino]pentanoyl}amino]nonanamide

[1151] ESI−MS: 592 [M+H]

[1152] mp: 78-95° C.

EXAMPLE 188

[1153] (3S)-3-[N-(n-Propyl)-{(2S)-5-carboxy-2-[(1-(2-chloro-benzyl)indol-3-ylcarbonyl)amino]pentanoyl}amino]nonanamide

[1154] ESI−MS: 625 [M+H]

[1155] mp: 175-180° C.

EXAMPLE 189

[1156] (3S)-3-[N-(n-Propyl)-{(2S)-2-(1-(2-chlorobenzyl)indol-3-ylcarbonyl)amino-5-carboxypentanoyl}amino]heptanamide

[1157] ESI−MS: 597 [M+H]

[1158] mp: 95-98° C.

EXAMPLE 190

[1159] (3S)-3-[N-(n-Propyl)-{(2S)-2-(1-(1-naphthylmethyl)indol-3-ylcarbonyl)amino-5-carboxypentanoyl}amino]heptanamide

[1160] ESI−MS: 613 [M+H]

[1161] mp: 98-116° C.

EXAMPLE 191

[1162] (3S)-3-[N-(n-Propyl)-{(2S)-5-carboxy-2-[(1-(2-pyridylmethyl)indol-3-ylcarbonyl)amino]pentanoyl}amino]-4-(6-ethyl-2-naphthyl)butanamide

[1163] ESI−MS: 676 [M+H]

[1164] mp: 110-116° C.

EXAMPLE 192

[1165] (3S)-3-[N-(n-Propyl)-{(2S)-2-(1-benzylindol-3-ylcarbonyl)amino-5-carboxypentanoyl}amino]-4-(6-ethyl-2-naphthyl)butanamide

[1166] ESI−MS: 673 [M−H]

[1167] mp: 105-116° C.

EXAMPLE 193

[1168] (3S)-3-[N-(n-Butyl)-{(2S)-2-(1-benzylindol-3-ylcarbonyl)amino-5-carboxypentanoyl}amino]-4-(6-ethyl-2-naphthyl)butanamide

[1169] ESI−MS: 689 [M+H]

[1170] mp: 100-116° C.

EXAMPLE 194

[1171] (3S)-3-[N-(n-Butyl)-{(2S)-2-(1-(2-chlorobenzyl)indol-3-ylcarbonyl)amino-5-carboxypentanoyl}amino]-4-(6-ethyl-2-naphthyl)butanamide

[1172] ESI−MS: 723 [M+H]

[1173] mp: 100-116° C.

[1174] The following compounds (Examples 195 to 199) were obtained according to a similar manner to that of Example 33.

EXAMPLE 195

[1175] (3S)-3-[(2S)-5-Carboxy-2-(tert-butoxycarbonylamino)-pentanoyl]oxy-5-(n-decyloxy)pentanamide

[1176] NMR (CDCl3, δ): 6.90 (1H, br s), 6.24 (1H, br s), 5.40 (1H, m), 5.20 (1H, d, J=8 Hz), 4.27 (1H, m), 3.32-3.57 (4H, m), 2.40-2.72 (2H, m), 2.30-2.40 (2H, m), 1.48-2.03 (8H, m), 1.44 (9H, s), 1.16-1.35 (14H, m), 0.87 (3H, t, J=7 Hz)

EXAMPLE 196

[1177] (3S)-3-[(2S)-5-Carboxy-2-(tert-butoxycarbonylamino)-pentanoyl]oxy-6-(n-nonyloxy)hexanamide

[1178] NMR (CDCl3, δ): 6.77 (1H, br s), 6.15 (1H, br s), 5.33 (1H, m), 5.22 (1H, d, J=8 Hz), 4.26 (1H, m), 332-3.46 (4H, m), 2.45-2.56 (2H, m), 2.27-2.40 (2H, m), 1.47-1.93 (8H, m), 1.44 (9H, s), 1.16-1.36 (14H, m), 0.88 (3H, t, J=7 Hz)

EXAMPLE 197

[1179] (3S)-3-[(2S)-5-Carboxy-2-(3-quinolylcarbonylamino)-pentanoyl]oxy-10-phenyldecanamide

[1180] NMR (CDCl3, δ): 9.34 (1H, s), 8.62 (1H, s), 7.55-8.25 (4H, m), 7.1-7.4 (11H, m), 6.85 (1H, br s), 6.40 (1H, br s), 5.35 (1H, m), 4.80 (1H, m), 2.4-2.7 (6H, m), 1.5-2.15 (8H, m), 1.2-1.4 (8H, m)

[1181] FAB−MS: 562 [M+H]

EXAMPLE 198

[1182] (3S)-3-[(2S)-(tert-Butoxycarbonyl)amino-5-carboxypentanoyl]oxy-10-phenyldecanamide

[1183] NMR (CDCl3, δ): 7.1-7.3 (6H, m), 6.20 (1H, br s), 5.26 (1H, m), 5.20 (1H, d, J=15.0 Hz), 4.28 (1H, m), 2.3-2.65 (6H, m), 1.5-1.9 (8H, m), 1.45 (9H, s), 1.2-1.4 (8H, m)

EXAMPLE 199

[1184] (3S)-3-[(2S)-2-(tert-Butoxycarbonyl)amino-5-carboxypentanoyl]oxy-4-(4-biphenylyl)butanamide

[1185] NMR (DMSO-d6, δ): 7.3-7.7 (10H m), 7.22 (1H, d, J=15.0 Hz), 6.84 (1H, br s), 5.32 (1H, m), 3.88 (1H, m), 2.8-3.0 (2H, m), 2.3 (2H, m), 2.14 (2H, m), 1.3-1.7 (13H, m)

[1186] FAB−MS: 499 [M+H]

EXAMPLE 200

[1187] To a stirring solution of (3S)-3-[N-(n-propyl)-{(2S)-2-(1-benzylindol-3-ylcarbonyl)amino-5-methoxycarbonyl-pentanoyl}amino]dodecanamide (0.23 g) in methanol (4.5 ml) was added 1N sodium hydroxide (0.71 ml) at room temperature and allowed to stand overnight. The mixture was diluted with 1N hydrochloric acid (2 ml) and concentrated under reduced pressure. The residue was extracted with ethyl acetate and the organic layer was washed with water and brine. The organic layer was dried with magnesium sulfate and concentrated in vacuo. The residue was triturated with ethyl ether to give (3S)-3-[N-(n-propyl)-{(2S)-2-(1-benzylindol-3-ylcarbonyl)amino-5-carboxypentanoyl}amino]dodecanamide (114 mg).

[1188] ESI−MS: 633 [M+H]

[1189] mp: 155-160° C.

[1190] The following compounds (Examples 201 to 207) were obtained according to a similar manner to that of Example 200.

EXAMPLE 201

[1191] (3S)-3-[N-(n-Propyl)-{(2S)-2-(1-(2-chlorobenzyl)indol-3-ylcarbonyl)amino-5-carboxypentanoyl}amino]dodecanamide

[1192] ESI−MS: 667 [M+H]

[1193] mp: 145-150° C.

EXAMPLE 202

[1194] (3S)-3-[N-(n-Butyl)-{(2S)-5-carboxy-2-[(1-(2-chlorobenzyl)indol-3-ylcarbonyl)amino]pentanoyl}amino]-4-(4-n-heptylphenyl)butanamide

[1195] ESI−MS: 743 [M+H]

[1196] mp: 79-81° C.

EXAMPLE 203

[1197] (3S)-3-[N-(n-Butyl)-{(2S)-5-carboxy-2-(2-quinolyl-carbonylamino)pentanoyl}amino]-4-(4-n-heptylphenyl)butanamide

[1198] ESI−MS: 631 [M+H]

EXAMPLE 204

[1199] (3S)-3-[N-Ethyl-{(2S)-2-(1-(2-chlorobenzyl)indol-3-ylcarbonyl)amino-5-carboxypentanoyl}amino]nonanamide

[1200] ESI−MS: 611 [M+H]

[1201] mp: 180-183° C.

EXAMPLE 205

[1202] (3S)-3-[N-Ethyl-{(2S)-2-(1-benzylindol-3-ylcarbonyl)amino-5-carboxypentanoyl}amino]nonanamide

[1203] ESI−MS: 577 [M+H]

[1204] mp: 80-85° C.

EXAMPLE 206

[1205] (3S)-3-[N-(n-Butyl)-{(2S)-2-(1-(2-chlorobenzyl)indol-3-ylcarbonyl)amino-5-carboxypentanoyl}amino]heptanamide

[1206] ESI−MS: 611 [M+H]

[1207] mp: 105-110° C.

EXAMPLE 207

[1208] (3S)-3-[N-(n-Butyl)-{(2S)-2-(1-(1-naphthylmethyl)indol-3-ylcarbonyl)amino-5-carboxypentanoyl}amino]heptanamide

[1209] ESI−MS: 627 [M+H]

[1210] mp: 105-113° C.

EXAMPLE 208

[1211] (3S)-3-[N-Ethyl-{(2S)-5-carboxy-2-(2-quinolylcarbonyl-amino)pentanoyl}amino]hexadecanamide (300 mg) was dissolved in 4N hydrogen chloride in ethyl acetate (2 ml) at room temperature. After being stirred at the same temperature for 10 minutes, the solvent was removed under reduced pressure and the resulting solid was triturated with ethyl acetate to give (3S)-3-[N-ethyl-{(2S)-5-carboxy-2-(2-quinolylcarbonylamino)pentanoyl}amino]hexadecanamide hydrochloride (194 mg).

EXAMPLE 209

[1212] (3S)-3-[N-(n-Butyl)-{(2S)-5-carboxy-2-(2-quinolylcarbonylamino)pentanoyl}amino]hexadecanamide hydrochloride was obtained according to a similar manner to that of Example 208.

EXAMPLE 210

[1213] (3S)-3-[N-(n-Propyl)-{(2S)-2-(1-benzylindol-3-ylcarbonyl)amino-5-carboxypentanoyl}amino]nonanamide was obtained according to a similar manner to that of Example 21.

[1214] ESI−MS: 591 [M+H]

[1215] mp: 147-157° C.

Number	Date	Country	Kind
9515162.7	Jul 1995	GB
PN 9835	May 1996	AU

	Number	Date	Country
Parent	08981830	Apr 1998	US
Child	10138637	May 2002	US

Esters and amides as PLA2 inhibitors

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