申请人:Pfizer Limited
公开号:EP0242173A1
公开(公告)日:1987-10-21
Antiarrhythmic agents of the formula:-
and their pharmaceutically acceptable salts,
wherein R is a C₁-C₄ alkyl group;
R¹ is a C₁-C₄ alkyl group;
X is -CH₂-, -CO- or -CH(OH)-;
n is 2, 3 or 4;
and "Het" is a 5- or 6-membered nitrogen-containing heterocyclic group which is attached to the adjacent carbon atom by a carbon or nitrogen atom and optionally contains a further heteroatom selected from 0 and N, said 5- or 6-membered nitrogen-containing heterocyclic group being either (i) substituted by a phenyl or benzyl group or (ii) fused at two adjacent carbon atoms to a benzene ring, said benzene ring being optionally substituted by 1 or 2 substituents each independently selected from halo and C₁-C₄ alkyl, and said 5- or 6-membered nitrogen-containing heterocyclic group being optionally substituted by up to 2 substituents each independently selected from oxo, halo and C₁-C₄ alkyl with the proviso that only one oxo substituent can be present.
式中的抗心律失常剂
及其药学上可接受的盐类、
其中 R 是 C₁-C₄ 烷基;
R¹ 是 C₁-C₄ 烷基;
X是-CH₂-、-CO-或-CH(OH)-;
n 是 2、3 或 4;
和 "Het "是 5 或 6 元含氮杂环基团,它通过一个碳原子或氮原子连接到相邻的碳原子上,并可选择包含选自 0 和 N 的另一个杂原子,所述 5 或 6 元含氮杂环基团或者 (i) 被苯基或苄基取代,或者 (ii) 在两个相邻的碳原子上融合成一个苯环、所述苯环可任选被 1 个或 2 个各自独立选自卤代和 C₁-C₄ 烷基的取代基取代,且所述 5 或 6 元含氮杂环基团可任选被最多 2 个各自独立选自氧代、卤代和 C₁-C₄ 烷基的取代基取代,但只能存在一个氧代取代基。