申请人:Schering AG
公开号:US05051422A1
公开(公告)日:1991-09-24
This invention relates to novel 2-substituted-1(4)-aryl piperazines and to a process for their preparation. The compounds of this invention have been found to have cardiovascular, primarily antiarrhythmic effects and are of the following general formula I ##STR1## wherein R is hydrogen, lower alkyl or benzyl; and R.sub.1 and R.sub.2 are the same or independently hydrogen, lower alkyl, lower alkoxy or halogen; Z is ##STR2## --NR.sub.3 --CH.sub.2 --, --OCH.sub.2 --, --NR.sub.3 --, --O-- or --NR.sub.3 SO.sub.2 -- and Q is (C.sub.1 -C.sub.4) alkyl--SO.sub.2 --NR.sub.4 -- or ##STR3## R.sub.3 is hydrogen, lower alkyl, allyl or loweralkoxyloweralkyl; and included in the descriptors of the compounds of Formula I is the proviso that when R.sub.4 is methyl then ##STR4## must be in the 2 position of Formula I.
这项发明涉及新颖的2-取代-1(4)-芳基哌嗪化合物及其制备方法。本发明的化合物被发现具有心血管、主要是抗心律失常的效果,其一般式为I,其中R为氢、较低烷基或苄基;R.sub.1和R.sub.2相同或独立地为氢、较低烷基、较低烷氧基或卤素;Z为##STR2## --NR.sub.3 --CH.sub.2 --, --OCH.sub.2 --, --NR.sub.3 --, --O--或--NR.sub.3 SO.sub.2 --;Q为(C.sub.1 -C.sub.4)烷基--SO.sub.2 --NR.sub.4 --或##STR3##;R.sub.3为氢、较低烷基、烯丙基或较低烷氧基较低烷基;在化合物的描述中包括以下规定:当R.sub.4为甲基时,则##STR4## 必须在式I的2位。