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.
提供以下式子所表示的三肽化合物##STR1##
其中,R.sub.1代表C.sub.1-10烷基,C.sub.4-7环烷基或C.sub.5-7环烷基-较低烷基,苯基或苯基-较低烷基,其中苯环可以选择性地被卤素,较低烷基,较低烷氧基,苯基,亚甲二氧基,乙二氧基,氨基,二(较低烷基)氨基和羟基等取代基取代,萘基或萘基-较低烷基,其中萘环可以选择性地被卤素,较低烷基,较低烷氧基和羟基等取代基取代,杂环或杂环-较低烷基,其中杂环是饱和或不饱和的5-或6-成员环,含有氮、氧或硫原子作为杂原子,可以选择性地被卤素,较低烷基,较低烷氧基,氨基,二(较低烷基)氨基,羟基,氧代基和饱和的5-或6-成员氮杂环基取代,还可以选择性地与苯环融合,或者是一种咪唑乙烯基;R.sub.2代表氢原子,C.sub.1-10烷基或苄基;R.sub.3代表式子##STR2##表示苯环,环戊烷或环己烷环,R.sub.4代表氢原子,C.sub.1-10烷基或苄基,p为0或1,q为1、2或3,X代表苯基,可以选择性地被卤素,较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代表氢原子或较低烷基,或者X和Y与它们连接的氮和碳原子形成一个5-或6-成员杂环,其中可能含有氮、氧或硫原子,W代表单键,--O--或--NH--,T代表单键,##STR3##,m为2或3,或其盐和生产过程。这些化合物可用作降压剂。