Isoindolin-1-one derivatives carrying on the nitrogen atom in the 2-position a phenyl or pyridyl radical, optionally carrying one or two substituents selected from halogen, alkyl (C.sub.1 -C.sub.4), alkoxy (C.sub.1 -C.sub.4), cyano and trifluoromethyl, and in the 3-position a grouping --O--T--NR.sub.1 R.sub.2 wherein T is alkylene (C.sub.2 -C.sub.6), and R.sub.1 and R.sub.2 represent hydrogen or alkyl (C.sub.1 -C.sub.4), are new compounds possessing pharmacodynamic properties and are useful as anti-arrhythmic agents.
2-位置带有苯基或
吡啶基的Isoindolin-1-one衍
生物,可选地带有从卤素,烷基(C.sub.1-C.sub.4),烷氧基(C.sub.1-C.sub.4),
氰基和三
氟甲基中选择的一个或两个取代基,并且在3-位置带有一个--O--T--NR.sub.1 R.sub.2基团,其中T是烷基(C.sub.2-C.sub.6),R.sub.1和R.sub.2代表氢或烷基(C.sub.1-C.sub.4),是具有药理学性质的新化合物,可用作抗心律失常剂。