申请人:Dainippon Pharmaceutical Co., Ltd.
公开号:US04826814A1
公开(公告)日:1989-05-02
There are provided tripeptide compounds represented by the following formula ##STR1## wherein R.sub.1 represents a C.sub.1-10 alkyl group, a C.sub.4-7 cycloalkyl or C.sub.5-7 cycloalkyl-lower alkyl group, a phenyl or phenyl-lower alkyl group in which the benzene ring may optionally be substituted by a substituent selected from halogen, lower alkyl, lower alkoxy, phenyl, methylenedioxy, ethylenedioxy, amino, di(lower alkyl)amino and hydroxy, a naphthyl or naphthyl-lower alkyl group in which the naphthalene ring may optionally be substituted by a substituent selected from halogen, lower alkyl, lower alkoxy and hydroxy, a heterocyclic or heterocyclic-lower alkyl group in which the heterocycle is a saturated or unsaturated 5- or 6-membered ring containing a nitrogen, oxygen or sulfur atom as the hetero atom, and may optionally be substituted by a substituent selected from halogen, lower alkyl, lower alkoxy, amino, di(lower alkyl)amino, hydroxy, oxo and saturated 5- or 6-membered nitrogen-containing heterocyclic group, and further may optionally be fused to a benzene ring, or an imidazolylvinyl group; R.sub.2 represents a hydrogen atom, a C.sub.1-10 alkyl group or a benzyl group; R.sub.3 represents a group of the formula ##STR2## represents a benzene, cyclopentane or cyclohexane ring, R.sub.4 represents a hydrogen atom, a C.sub.1-10 alkyl group or a benzyl group, p is 0 or 1, q is 1, 2, or 3, and X represents a phenyl group which may optionally be substituted by a substituent selected from halogen, lower alkoxy and hydroxy, a C.sub.4-8 cycloalkyl group, or a C.sub.5-7 cycloalkyl group which is fused to a benzene, and Y represents a hydrogen atom or a lower alkyl group, or X and Y, together with the nitrogen and carbon atoms to which they are bonded, forms a 5- or 6-membered heterocycle which may contain a nitrogen, oxygen or sulfur atom, W represents a single bond, --O-- or --NH--, T represents a single bond, ##STR3## and m is 2 or 3, or salts thereof and processes for production thereof. The compounds are useful as antihypertensive agents.
提供的三肽化合物的化学式如下所示:其中R.sub.1代表C.sub.1-10烷基基团、C.sub.4-7环烷基或C.sub.5-7环烷基-低烷基基团、苯基或苯基-低烷基基团,其中苯环可能被卤素、低烷基、低烷氧基、苯基、亚甲二氧基、乙二氧基、氨基、二(低烷基)氨基和羟基等取代基取代;萘基或萘基-低烷基基团,其中萘环可能被卤素、低烷基、低烷氧基和羟基等取代基取代;杂环或杂环-低烷基基团,其中杂环是饱和或不饱和的含氮、氧或硫原子的5-或6-成员环,可能被卤素、低烷基、低烷氧基、氨基、二(低烷基)氨基、羟基、氧代和饱和的含氮5-或6-成员环取代基取代,并且可能与苯环融合,或者是咪唑乙烯基团;R.sub.2代表氢原子、C.sub.1-10烷基基团或苄基团;R.sub.3代表下式中的基团##STR2## 代表苯、环戊烷或环己烷环,R.sub.4代表氢原子、C.sub.1-10烷基基团或苄基团,p为0或1,q为1、2或3,X代表苯基,可能被卤素、低烷氧基和羟基等取代基取代,C.sub.4-8环烷基,或与苯融合的C.sub.5-7环烷基,Y代表氢原子或低烷基基团,或X和Y连同它们结合的氮和碳原子形成一个含氮、氧或硫原子的5-或6-成员杂环,W代表单键,-O-或-NH-,T代表单键,##STR3## m为2或3,或其盐和生产方法。这些化合物可用作降压药。