申请人:SS Pharmaceutical Co., Ltd.
公开号:US04876359A1
公开(公告)日:1989-10-24
Novel .gamma.-butyrolactone derivatives having strong ACE inhibitory activity are provided. They are represented by the following general formula (I): ##STR1## wherein R.sup.1 and R.sup.2 may be the same or different and mean individually a hydrogen atom or a straight-chain or branched alkyl or cycloalkyl group, or R.sup.1 and R.sup.2 are bonded together to mean an alkylene group having 2-6 carbon atoms, R.sup.3 denotes a hydrogen atom or a lower alkyl, aralkyl, amino lower alkyl or lower alkoxycarbonylamino lower alkyl group, R.sup.4 means a lower alkyl, cycloalkyl or aralkyl group, R.sup.5 means a hydrogen atom or a lower alkyl group, or R.sub.4 and R.sub.5 are bonded together to denote an alkylene group having 2-4 carbon atoms, and R.sup.6 stands for a hydrogen atom or a lower alkyl or aralkyl group; or a pharmacologically acceptable salt thereof.
本发明提供了具有强烈ACE抑制活性的新型γ-丁内酯衍生物。它们由以下通式(I)表示:##STR1## 其中R.sup.1和R.sup.2可以相同也可以不同,分别表示氢原子或直链或支链烷基或环烷基,或者R.sup.1和R.sup.2结合在一起表示具有2-6个碳原子的烷基。R.sup.3表示氢原子或较低的烷基、芳基烷基、氨基较低烷基或较低烷氧羰基氨基较低烷基基团,R.sup.4表示较低烷基、环烷基或芳基烷基,R.sup.5表示氢原子或较低烷基基团,或者R.sub.4和R.sub.5结合在一起表示具有2-4个碳原子的烷基。R.sup.6表示氢原子或较低烷基或芳基烷基;或其药学上可接受的盐。