申请人:Takeda Chemical Industries, Ltd.
公开号:US04521607A1
公开(公告)日:1985-06-04
New bicyclic compounds, inclusive of salts thereof, of the formula: ##STR1## wherein R.sup.1 and R.sup.2, which may be the same or different, each represent hydrogen, halogen, lower alkyl, hydroxyl, lower alkyloxy or aralkyloxy, or R.sup.1 and R.sup.2 jointly represent lower alkylenedioxy; R.sup.3 and R.sup.4 each represent hydrogen or lower alkyl; R.sup.5 represents hydrogen, lower alkyl or --CH.sub.2 SR.sup.7 (R.sup.7 represents hydrogen or acyl); R.sup.6 represents hydrogen or acyl, or R.sup.6 and R.sup.7 jointly represent a single bond; X represents --CH.sub.2 --, --O-- or >N--R.sup.8 (R.sup.8 represents hydrogen, acyl or lower alkyl); and n represents 2, 3 or 4, have inhibitory activities of angiotensin converting enzyme and bradykinin decomposing enzyme, and are useful as antihypertensive agents.
新的双环化合物及其盐,化学式如下:##STR1## 其中,R.sup.1和R.sup.2,可以相同也可以不同,分别表示氢、卤素、低级烷基、羟基、低级烷氧基或芳基烷氧基,或者R.sup.1和R.sup.2共同表示低级烷二氧基;R.sup.3和R.sup.4分别表示氢或低级烷基;R.sup.5表示氢、低级烷基或--CH.sub.2 SR.sup.7(其中R.sup.7表示氢或酰基);R.sup.6表示氢或酰基,或者R.sup.6和R.sup.7共同表示单键;X表示--CH.sub.2 --、--O--或>N--R.sup.8(其中R.sup.8表示氢、酰基或低级烷基);n表示2、3或4。该化合物具有抑制血管紧张素转换酶和激肽酶降解酶的活性,是一种有用的降压药。