Heterocyclic compounds, processes for their preparation and compositions containing them
申请人:GLAXO GROUP LIMITED
公开号:EP0021840A1
公开(公告)日:1981-01-07
Thiophene carboxamides are described of general formula I:
in which the amide function is in the 2- or 3-position on the thiophene ring, R1 to R5 inclusive are hydrogen atoms or lower alkyl groups, X is -CH2-, -0- or -NR6- where R6 is hydrogen or a lower alkyl group,n is a number from 0 to 3 with the proviso that when n is zero X cannot represent -0- or -NR6- and Ar is an optionally substituted phenyl group and their physiologically acceptable salts.
The compounds have been found to lower blood pressure in animals and to exhibit a blocking action at p-adrenoreceptors and their use is indicated for the treatment of cardiovascular disorders such as hypertension and angina. Some of the compounds also exhibit a blocking action on a-adrenoreceptors and their use is indicated for the treatment of hypertention.
The compounds may be formulated in conventional manner together with physiologically acceptable carriers or excipients.
噻吩羧酰胺的通式为 I:
其中,酰胺功能位于噻吩环上的 2 位或 3 位,R1 至 R5(包括 R5)为氢原子或低级烷基,X 为-CH2-、-0- 或-NR6-,其中 R6 为氢或低级烷基,n 为 0 至 3 的数字,但当 n 为零时,X 不能代表-0- 或-NR6-,Ar 为任选取代的苯基及其生理上可接受的盐类。
已发现这些化合物能降低动物血压,对 p 肾上腺素受体有阻断作用,可用于治疗高血压和心绞痛等心血管疾病。其中一些化合物还对 a 肾上腺素受体有阻断作用,可用于治疗高血压。
这些化合物可与生理上可接受的载体或赋形剂一起以常规方式配制。