申请人:Rhone-Poulenc Sante
公开号:US04977166A1
公开(公告)日:1990-12-11
New benzopyran derivatives of formula: ##STR1## in which R.sub.1 is hydrogen, halogen, hydroxy, alkoxy, nitro, amino, alkylsulphonamido, bis(alkylsulphonyl) amino or acylamino, X is nitrogen or a >CH-radical R is a radical of formula: ##STR2## in which A denotes a single bond or methylene or, when X is nitrogen, A may denote carbonyl, and R.sub.2 and R.sub.3, which are identical or different, are hydrogen, halogen, hydroxy, alkyl, alkoxy, nitro, amino, alkylsulphonamido, bis(alkylsulphonyl)amino, acylamino, sulphamoyl or cyano, or, when they are adjacent, together form a methylenedioxy or ethylenedioxy radical, or else R is pyridyl or 2(2H)-benzimidazolonyl if X denotes >CH--, and R' and R" are identical and are hydrogen or alkyl, their isomeric forms and mixtures thereof, and their acid addition salts, can be used as antiarrhythmic and antifibrillation agents.
化学式为:##STR1##的新苯并吡喃衍生物,其中R.sub.1是氢、卤素、羟基、烷氧基、硝基、氨基、烷基磺酰胺基、双(烷基磺酰基)氨基或酰胺基,X是氮或一个 >CH-基团,R是一个公式的基团:##STR2##其中A表示单键或亚甲基或当X为氮时,A可以表示羰基,R.sub.2和R.sub.3相同或不同,是氢、卤素、羟基、烷基、烷氧基、硝基、氨基、烷基磺酰胺基、双(烷基磺酰基)氨基、酰胺基、磺酰胺基或氰基,或者当它们相邻时,共同形成亚甲二氧基或乙二氧基基团,否则当X表示 >CH-时,R是吡啶基或2(2H)-苯并咪唑基,R'和R"相同且为氢或烷基,它们的同分异构体和混合物,以及它们的酸加合物,可用作抗心律失常和抗心房颤动剂。