A series of novel alkanesulphonamidophenyl-N-alkyl-N-(heterocyclic-alkyl)alkylamine derivatives have been prepared, including their pharmaceutically acceptable salts. These compounds are useful in therapy as anti-arrhythmic agents and therefore, are of value in the treatment of various cardiac arrhythmias. Said sulfonamide compounds are of the formula: ##STR1## wherein R and R.sup.1 are each C.sub.1 -C.sub.4 alkyl; X is --CH.sub.2 --, --CO-- or --CH(OH)--; n is two, three or four; and "Het" is a nitrogen-containing heterocyclic group wherein said heterocyclic group is preferably 2H-3,4-dihydroisoquinol-1-on-2-yl or 2H-isoquinol-1-on-2-yl, each optionally substituted with halogen or C.sub.1 -C.sub.4 alkyl.
一系列新型的烷基磺酰胺基苯基-N-烷基-N-(杂环烷基)烷基胺衍
生物已被制备,包括它们的药学上可接受的盐。这些化合物在治疗
抗心律失常药物方面非常有用,因此对于治疗各种心脏心律失常具有价值。所述磺酰胺化合物的
化学式为:##STR1## 其中R和R.sup.1分别为C.sub.1-C.sub.4烷基;X为--CH.sub.2--,--CO--或--CH(OH)--;n为二、三或四;而"Het"是一种含氮杂环基团,其中该杂环基团最好是2H-
3,4-二氢异喹啉-1-酮-2-基或2H-
异喹啉-1-酮-2-基,每个基团可选择性地被卤素或C.sub.1-C.sub.4烷基取代。