Compounds of the formula (I) : and pharmaceutically acceptable salts are described, wherein R' is hydrogen or methyl; and R2 and R3 are independently hydrogen, C1-4alkyl, phenyl(C1-4)alkyl or pyridyl(C1-4)alkyl, any of such groups being optionally substituted by one or two hydroxy, C1-4alkoxy or C1-4 alkyl groups; or R2 and R3 together with the carbon atoms to which they are joined form a benzene ring which is optionally substituted by C1-4alkyl.These compounds have inotropic, vasodilator, bronchodilating and platelet aggregation inhibiting properties. Pharmaceutical compositions are described as are methods of use. Intermediates and processes for the preparation of the compounds of the formula (I) are described.
描述了
化学式(I)的化合物及其药学上可接受的盐,其中R'是氢或甲基;R2和R3分别是氢、C1-4烷基、苯基(C1-4)烷基或
吡啶基(C1-4)烷基,这些基团中的任何一个可选择地被一个或两个羟基、C1-4烷氧基或C1-4烷基取代;或者R2和R3与它们连接的碳原子一起形成一个苯环,该苯环可选择地被C1-4烷基取代。这些化合物具有正性肌力、扩血管、扩支气管和抑制血小板聚集的性质。描述了药物组合物以及使用方法。还描述了
化学式(I)化合物的中间体和制备方法。