申请人:Pfizer Limited
公开号:EP0233051A2
公开(公告)日:1987-08-19
A compound of the formula:
or a pharmaceutically acceptable salt thereof, wherein «Het» is selected from (a) a 3- or 4-pyridinyl group optionally substituted by one or two substituents each independently selected from C1-C4 alkyl and amino, (b) a 2-pyridinyl group substituted by an amino group, (c) a 2-imidazolyl group optionally substituted by one or two C1-C4 alkyl groups and (d) a 2-, 3- or 4-pyridinyl group substituted by a nitro group, or an N-oxide thereof, or a 2-, 3- or 4-pyridinyl group substituted by a group of the formula -NHCOO(C1-C4 alkyl);
R is selected from (a) -NHSO2R3 where R3 is Cl-C4 alkyl, C3-C7 cycloalkyl or -NR1R2 where R1 and R2 are each independently H or C1-C4 alkyl, (b) -SO2NR1R2 where R1 and R2 are as defined above, (c) nitro, (d) amino and (e) acetamido;
and X is a group of the formula -(CH2)m- where m is an integer of from 1 to 4, -CO(CH2)n- or -CH(OH)(CH2)n- where n is 1, 2 or 3.
Apart from the compounds in which «Het» is as defined in part (d) above, which are synthetic intermediates, the compounds are all useful as cardiac antiarrhythmic agents.
式中的化合物
或其药学上可接受的盐,其中 "Het "选自(a)任选被一个或两个各自独立选自 C1-C4 烷基和氨基的取代基取代的 3-或 4-吡啶基;(b)被氨基取代的 2-吡啶基、(d) 被硝基或其 N-氧化物取代的 2-、3-或 4-吡啶基,或被式 -NHCOO(C1-C4烷基)取代的 2-、3-或 4-吡啶基;
R 选自 (a) -NHSO2R3 其中 R3 为 Cl-C4 烷基、C3-C7 环烷基或 -NR1R2 其中 R1 和 R2 各自独立地为 H 或 C1-C4 烷基;(b) -SO2NR1R2 其中 R1 和 R2 如上定义;(c) 硝基;(d) 氨基和 (e) 乙酰氨基;
和 X 是式中的基团-(CH2)m-(其中 m 为 1 至 4 的整数)、-CO(CH2)n- 或-CH(OH)(CH2)n-(其中 n 为 1、2 或 3)。
除了 "Het "如上文(d)部分定义的化合物是合成中间体外,这些化合物都可用作抗心律失常药物。