New aminopropanol compounds of the formula ##STR1## wherein R is lower alkyl, cycloalkyl or alkylthioalkyl, R.sub.1 is hydrogen or lower alkyl, hydroxyalkyl, pivaloyloxyalkyl, alkoxyalkyl, alkoxycarbonyl, carboxyl or --CONR.sub.3 R.sub.4, in which R.sub.3 and R.sub.4 which can be the same or different, represent hydrogen or lower alkyl, and R.sub.2 is lower alkyl, hydroxyalkyl, alkoxyalkyl or pivaloyloxyalkyl or, when R is alkylthioalkyl or R.sub.1 is pivaloyloxyalkyl, R.sub.2 can also be hydrogen and The pharmacologically acceptable salts thereof; are outstandingly effective in the treatment or prophylaxis of cardiac and circulatory diseases.
新的
氨基
丙醇化合物,其
化学式为##STR1## 其中R是低碳基,环烷基或烷基
硫基,R.sub.1是氢或低碳基,羟基烷基,皮瓦洛酰氧基烷基,烷氧基烷基,烷氧基羰基,羧基或--CONR.sub.3 R.sub.4,其中R.sub.3和R.sub.4可以相同或不同,表示氢或低碳基,而R.sub.2是低碳基,羟基烷基,烷氧基烷基或皮瓦洛酰氧基烷基或者当R是烷基
硫基或R.sub.1是皮瓦洛酰氧基烷基时,R.sub.2也可以是氢。以及其药学上可接受的盐;在治疗或预防心脏和循环疾病方面具有卓越的疗效。