申请人:Kyowa Hakko Kogyo Co., Ltd.
公开号:US04849441A1
公开(公告)日:1989-07-18
Isoindolin-1-one compounds represented by the following formula (I); ##STR1## wherein n represents an integer of 1 to 6; m represents 0 or 1; R.sub.1, R.sub.2 and R.sub.3 are each independently hydrogen or lower alkyl, and when m is 1, R.sub.1 and one of R.sub.2 and R.sub.3 may form a five-membered or six-membered ring over N atom; X represents hydrogen or hydroxy; Ar represents naphthyl, pyridyl or substituted phenyl represented by the formula (II); Ar and X may form a lactone ring; ##STR2## [wherein Y represents carboxyl, lower alkoxycarbonyl, carbamoyl, N,N-lower alkyl-substituted carbamoyl or amino represented by the formula (III): ##STR3## (wherein R.sub.6 and R.sub.7 are each independently hydrogen, lower alkyl or lower alkanoyl); R.sub.4 and R.sub.5 are each independently hydrogen, lower alkyl, cyano or halogen]} or a pharmaceutically acceptable acid addition salt or metal salt thereof have an excellent antiarrhythmic activity.
以下是化学式(I)所代表的Isoindolin-1-one化合物;
其中,n表示1到6的整数;m表示0或1;R1,R2和R3分别独立地表示氢或较低的烷基,当m为1时,R1和R2或R3中的一个可以在N原子上形成五元环或六元环;X表示氢或羟基;Ar表示萘基,吡啶基或由式(II)表示的取代苯基;Ar和X可以形成内酯环;
其中,Y表示羧基,较低的烷氧羰基,氨基甲酰基,N,N-较低烷基取代的氨基甲酰基或由式(III)表示的氨基:其中R6和R7各自独立地表示氢,较低的烷基或较低的脂肪酰基;R4和R5各自独立地表示氢,较低的烷基,氰基或卤素;
这些化合物或其药学上可接受的酸加成盐或金属盐具有出色的抗心律失常活性。