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.
以以下公式(I)表示的Isoindolin-1-one化合物;其中n表示1到6的整数;m表示0或1;R.sub.1,R.sub.2和R.sub.3分别独立地表示氢或较低的烷基,当m为1时,R.sub.1和R.sub.2和R.sub.3中的一个可以形成以N原子为中心的五元环或六元环;X表示氢或羟基;Ar表示naphthyl,pyridyl或由以下公式(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,氨基或由以下公式(III)表示的N,N-较低烷基取代的氨基:(其中R.sub.6和R.sub.7分别独立地表示氢,较低烷基或较低烷酰基);R.sub.4和R.sub.5分别独立地表示氢,较低烷基,氰基或卤原子;或其药学上可接受的酸盐或金属盐具有优异的抗心律失常活性。