Synthesis and angiotensin converting enzyme-inhibitory activity of 1,5-benzothiazepine and 1,5-benzoxazepine derivatives. III.
作者:KATSUMI ITOH、MASAKUNI KORI、YOSHIYUKI INADA、KOHEI NISHIKAWA、YUTAKA KAWAMATSU、HIROSADA SUGIHARA
DOI:10.1248/cpb.34.3747
日期:——
A seires of (R)-3-amino-4-oxo-2, 3, 4, 5-tetrahydro-1, 5-benzothiazepine-5-acetic acids (8) and (S)-3-amino-4-oxo-2, 3, 4, 5-tetrahydro-1, 5-benzoxazepine-5-acetic acids (9) having an (S)-1-carboxy-ω-(4-piperidyl)alkyl group on the amino group at the 3-position was prepared as part of a search for long-acting inhibitors of the angiotensin converting enzyme (ACE). The length (n) of the carbon chain in the piperidylalkyl moiety was varied from two six in order to determine the optimal structure. The most prolonged activity in vivo was observed with (R)-3-[(S)-1-carboxy-5-(4-piperidyl)pentyl]amino-4-oxo-2, 3, 4, 5-tetrahydro-1, 5-benzothiazepine-5-acetic acid (8c : CV-5975) on i.v. and p.o. administrations.
一系列具有(S)-1-羧基-ω-(4-哌啶基)烷基基团的(R)-3-氨基-4-氧代-2, 3, 4, 5-四氢-1, 5-苯噻氮卓-5-乙酸(8)和(S)-3-氨基-4-氧代-2, 3, 4, 5-四氢-1, 5-苯并噻氮卓-5-乙酸(9)被制备,作为寻找具有长效作用的血管紧张素转化酶(ACE)抑制剂的一部分。在哌啶基烷基部分中,碳链的长度(n)从二到六进行了变化,以确定最佳结构。在静脉注射和口服给药中,观察到(R)-3-[(S)-1-羧基-5-(4-哌啶基)戊基]氨基-4-氧代-2, 3, 4, 5-四氢-1, 5-苯噻氮卓-5-乙酸(8c:CV-5975)具有最持久的体内活性。