申请人:Sumitomo Chemical Company, Limited
公开号:US03951998A1
公开(公告)日:1976-04-20
Novel benzothiazole derivatives of the formula ##SPC1## Wherein R.sub.1 and R.sub.2 are individually hydrogen, lower alkyl, nitro, halogen, optionally substituted amino, carboxyl, lower alkoxy-carbonyl or di-lower alkyl-carbamoyl; and R.sub.3 and R.sub.4 are individually hydrogen, lower alkyl or .alpha.-lower alkyl-benzyl or NR.sub.3 R.sub.4 is a saturated heterocyclic ring containing a nitrogen atom, and their salts. They are useful as antihypertensives.
新型苯并噻唑衍生物的化学式如下:##SPC1## 其中,R.sub.1和R.sub.2分别为氢、低烷基、硝基、卤素、可选择的取代氨基、羧基、低烷氧基-羰基或二低烷基-氨基甲酰基;R.sub.3和R.sub.4分别为氢、低烷基或α-低烷基苄基或NR.sub.3 R.sub.4为含有氮原子的饱和杂环环,以及它们的盐。它们可用作降压药。