申请人:RECHERCHE SYNTEX FRANCE SA
公开号:EP0377966A2
公开(公告)日:1990-07-18
Compounds of the formula
wherein:
R₁ is cyano or nitro;
R₂ and R₃ are independently hydrogen or lower alkyl; and
R₄ is alkyl; alkenyl; optionally substituted phenyl or phenyl lower alkyl; -(CH₂)mOR₂ or -(CH₂)mN(R₂)₂; wherein m is an integer of 1-5 and R₂ is as defined above;
or a pharmaceutically acceptable ester or acid addition salt thereof;
are smooth muscle relaxants, particularly useful in the treatment of hypertension.
式中的化合物
其中
R₁ 是氰基或硝基;
R₂ 和 R₃ 独立地为氢或低级烷基;以及
R₄ 是烷基;烯基;任选取代的苯基或苯基低级烷基;-(CH₂)mOR₂ 或-(CH₂)mN(R₂)₂;其中 m 是 1-5 的整数,R₂ 如上文所定义;
或其药学上可接受的酯或酸加成盐;
是平滑肌松弛剂,尤其适用于治疗高血压。