申请人:E.R. SQUIBB & SONS, INC.
公开号:EP0354553A2
公开(公告)日:1990-02-14
Compounds of the formula I:
and tautomers thereof, wherein at least one of R2, R3 and R4 is a strong electron withdrawing group, are disclosed. These compounds possess potassium channel activating activity and, as such, are useful as antihypertensive agents and show less cardiac effects than known potassium channel activators.
Also disclosed is a process for preparing these and other compounds and the use of potassium channel activators for the preparation of drugs for the treatment of fibrillation of the heart wherein said potassium channel activators are selected from pinacidil, cromakalim, nicorandil, minoxidil and the compounds of formula I.
式 I. 的化合物及其同系物
及其同系物,其中 R2、R3 和 R4 中至少有一个是强取电子基团。这些化合物具有钾通道激活活性,因此可用作降压药,与已知的钾通道激活剂相比,对心脏的影响较小。
还公开了制备这些化合物和其它化合物的工艺,以及使用钾通道激活剂制备治疗心颤的药物,其中所述钾通道激活剂选自吡那地尔、克罗马卡利姆、尼可地尔、米诺地尔和式 I 化合物。