申请人:E. R. Squibb & Sons, Inc.
公开号:US04220791A1
公开(公告)日:1980-09-02
Compounds having the formula ##STR1## and basic salts thereof, wherein R.sub.1 is hydrogen, alkyl, aryl, arylalkyl or ##STR2## wherein R.sub.5 is alkyl or aryl; R.sub.2 is hydrogen or alkyl; R.sub.3 is hydrogen, alkyl, aryl or arylalkyl; and R.sub.4 is hydrogen, alkyl, or arylalkyl; have useful hypotensive activity.
具有以下结构式##STR1##及其碱盐的化合物,其中R.sub.1是氢、烷基、芳基、芳基烷基或##STR2##,其中R.sub.5是烷基或芳基;R.sub.2是氢或烷基;R.sub.3是氢、烷基、芳基或芳基烷基;R.sub.4是氢、烷基或芳基烷基;具有有用的降压活性。