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.
新的苯并吡喃衍生物的化学式为:##STR1## 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 是一个化学式的基团:##STR2## 其中 A 表示一个单键或亚甲基,或者当 X 是氮时,A 可表示羰基,R.sub.2 和 R.sub.3,它们相同或不同,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,一起形成一个亚甲二氧基或乙烯二氧基基团,或者 R 是吡啶基或 2(2H)-苯并咪唑基,如果 X 表示 >CH--,而 R' 和 R" 相同且是氢或烷基,它们的异构体形式和混合物,以及它们的酸盐加合物,可用作抗心律失常和抗纤颤剂。