申请人:Hokuriku Pharmaceutical Co., Ltd.
公开号:US04971990A1
公开(公告)日:1990-11-20
Phenoxyethylamine derivatives represented by the general formula (I): ##STR1## wherein R.sub.1 and R.sub.5 represent lower-alkyl, R.sub.2 and R.sub.3, which may be the same or different, each represents hydrogen or lower-alkyl, or ##STR2## represents a 5- or 6-membered ring system which may include nitrogen, oxygen or sulfur as a ring membered atom, R.sub.4 represents hydrogen or lower-alkyl, and n represents an integer selected from 1 to 3, their optical isomers and pharmacologically-acceptable acid addition salts, which exhibit excellent .alpha..sub.1 -blocking activity, a process for their preparation, pharmaceutical compositions thereof, and a method for the treatment of a subject afflicted with hypertension or dysuria by administrating such a compound, are all disclosed.
通式(I)表示的苯氧乙胺衍生物:其中R.sub.1和R.sub.5代表低碳烷基,R.sub.2和R.sub.3,可以相同也可以不同,每个代表氢或低碳烷基,或者##STR2##代表可能包含氮、氧或硫作为环成员原子的5-或6-成员环系统,R.sub.4代表氢或低碳烷基,n代表从1到3选择的整数,它们的光学异构体和药理学上可接受的酸盐加合物,表现出优异的α1-阻滞活性,公开了它们的制备方法、药物组合物以及通过给予这种化合物治疗患有高血压或尿路异物的受试者的方法。