申请人:Researche Syntex France, S.A.
公开号:US04997846A1
公开(公告)日:1991-03-05
Compounds of the formula ##STR1## wherein: R.sub.1 is cyano or nitro; R.sub.2 and R.sub.3 are independently hydrogen or lower alkyl; and R.sub.4 is alkyl; alkenyl; optionally substituted phenyl or phenyl lower alkyl; --(CH.sub.2).sub.m OR.sub.2 or --(CH.sub.2).sub.m N(R.sub.2).sub.2 ; wherein m is an integer of 1-5 and R.sub.2 is as defined above; or a pharmaceutically acceptable ester thereof; are smooth muscle relaxants, particularly useful in the treatment of hypertension.
公式为##STR1##的化合物,其中:R.sub.1是氰基或硝基;R.sub.2和R.sub.3分别是氢或较低的烷基;R.sub.4是烷基;烯基;或者是可选择取代的苯基或苯基烷基;--(CH.sub.2).sub.m OR.sub.2或--(CH.sub.2).sub.m N(R.sub.2).sub.2;其中m是1-5的整数,R.sub.2如上所定义;或其药学上可接受的酯,是平滑肌松弛剂,特别适用于治疗高血压。