申请人:Pfizer Inc.
公开号:US04990509A1
公开(公告)日:1991-02-05
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 arrythmias. Said sulfonamide base 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 --CO(OH)--; n is two, three or four; and "Het--" is a nitrogen-containing heterocyclic group wherein said heterocyclic group is phenyl or benzyl-substituted 2H-pyridazin-3-on-2-yl, or it is 2H-phthalazin-1-on-2-yl, 4-halo-2H-phthalizin-1-on-2-yl or 4-(C.sub.1 -C.sub.4 alkyl)-2H-phthalazin-1-on-2-yl, 2H-isoindolin-1-on-2-yl, 3H-quinazolin-4-on-3-yl, 2H-3,4-dihydroisoquinol-1-on-2-yl, 2H-isoquinol-on-2-yl, 1H-3,4-dihydroquinol-2-on-1-yl, benzoxazol-2-on-3-yl, quinol-2-on-1-yl, quinol-2-yl or indol-2-yl, each optionally mono substituted with halogen or C.sub.1 -C.sub.4 alkyl on the benzene portion of the respective fused ring moieties.
一系列新型烷基磺酰胺基苯基-N-烷基-N-(杂环烷基)烷基胺衍生物已经制备出来,包括它们的药学可接受盐。这些化合物在治疗抗心律失常方面非常有用,因此在治疗各种心脏心律失常方面具有价值。所述磺酰胺基基础化合物的化学式为:##STR1## 其中R和R.sup.1均为C.sub.1-C.sub.4烷基;X为--CH.sub.2--、--CO--或--CO(OH)--;n为二、三或四;"Het--"为含氮杂环基团,其中所述杂环基团为苯基或苯甲基取代的2H-吡啶并[3,4-d]嗪-2-基、2H-邻苯并噻唑并[1,2-d]嗪-1-基、4-卤代-2H-邻苯并噻唑并[1,2-d]嗪-1-基或4-(C.sub.1-C.sub.4烷基)-2H-邻苯并噻唑并[1,2-d]嗪-1-基、2H-异吲哚并[1,2-c]噻唑-1-基、3H-喹唑并[4,3-b]喹唑-4-基、2H-3,4-二氢异喹啉并[1,2-c]噻唑-1-基、2H-异喹啉-1-基、1H-3,4-二氢喹啉-2-酮-1-基、苯并噁唑-2-酮-3-基、喹啉-2-酮-1-基、喹啉-2-基或吲哚-2-基,其中各自的融合环部分的苯环可以选择性地单取代卤素或C.sub.1-C.sub.4烷基。