申请人:A. Menarini S.A.S.
公开号:US04604392A1
公开(公告)日:1986-08-05
A 2-substituted benzofuran derivative of general formula I or II ##STR1## in which R.sub.1 and R.sub.2, can be the same or different, and are a hydrogen atom, a halogen atom, an alkyl group containing 1 to 4 carbon atoms, an arylalkyl group, an aryl group, a hydroxyl group, an alkoxy group, or an NH.sub.2, NH-alkyl, N(alkyl).sub.2, NH(CO-alkyl), NH(CO-aryl) or NO.sub.2 group, or R.sub.1 and R.sub.2 can together form a ring of 5-8 carbon atoms; R.sub.3 is a hydrogen atom, an alkyl group containing 1 to 4 carbon atoms or an aryl group; R.sub.4 is a hydrogen atom, an alkyl group, an aryl or an arylalkyl group, R.sub.5 is a hydroxyl group, an alkoxy group, an OCO-alkyl, an OCO-aryl, OCOHN-alkyl or OCONH-aryl group, ##STR2## where n is a number between 1 and 4, R.sub.7 is a hydrogen atom or an alkyl group containing 1 to 4 carbon atoms, and R.sub.8 and R.sub.9, which can be the same or different, represent a hydrogen atom, an alkyl group, an aryl group, an alkoyl group, arylalkoyl group or an aroyl group, or can together form a heterocyclic ring which can contain supplementary heteratoms, and R.sub.6 is a hydrogen or halogen atom, an alkyl group, an arylalkyl group, an aryl group, a hydroxyl group, an alkoxy group, or an NH.sub.2, NH-alkyl, (N(alkyl).sub.2, NHCO-alkyl, NHCO-aryl or NO.sub.2 group. The compounds are useful for treating cardiac arrhythmic, histaminic and tussive conditions.
通式I或II的2-取代苯并呋喃衍生物,其中R1和R2可以相同也可以不同,是氢原子、卤素原子、含有1至4个碳原子的烷基、芳基烷基、芳基、羟基、烷氧基、或NH2、NH-烷基、N(烷基)2、NH(CO-烷基)、NH(CO-芳基)或NO2基,或R1和R2可以一起形成一个5-8个碳原子的环;R3是氢原子、含有1至4个碳原子的烷基或芳基;R4是氢原子、烷基、芳基或芳基烷基;R5是羟基、烷氧基、OCO-烷基、OCO-芳基、OCOHN-烷基或OCONH-芳基基团,其中n是1至4之间的数字,R7是氢原子或含有1至4个碳原子的烷基,R8和R9可以相同也可以不同,表示氢原子、烷基、芳基、酰基、芳基酰基或者可以一起形成一个含有补充杂原子的杂环,R6是氢或卤素原子、烷基、芳基烷基、芳基、羟基、烷氧基或NH2、NH-烷基、N(烷基)2、NHCO-烷基、NHCO-芳基或NO2基。这些化合物可用于治疗心律失常、组胺和咳嗽疾病。