The substituted theophyllines of the formula:
(wherein R', R2 and R3, which may be the same or different, each represent alkyl of 1 to 6 carbon atoms, cycloalkyl of 3 to 7 carbon atoms, phenyl or phenylalkyl of 7 to 10 carbon atoms, each of which may be unsubstituted or substituted by one or more hydroxy groups, alkoxy or alkylthio groups of 1 to 4 carbon atoms, halogen atoms, cyano groups, nitro groups, carboxy groups, alkoxycarbonyl groups of 2 to 5 carbon atoms, amino groups, alkylamino groups of 1 to 4 carbon atoms or dialkylamino groups of 2 to 8 carbon atoms, or when the group is pehnyl or phenylalkyl, by one or more alkyl groups of 1 to 4 carbon atoms;
or R2 and R'together represent a hydrocarbon chain of 3 to 6 carbon atoms optionally interrupted by a heteroatom; and n represents an integer from 1 to6) and the acid additional salts thereof, are novel compounds which are useful in the treatment of cardiac disorders. Processes for their preparation and pharmaceutical compositions containing them are also described.
式中的取代
茶碱类:
(其中 R'、R2 和 R3(可以相同或不同)各自代表 1 至 6 个
碳原子的烷基、3 至 7 个
碳原子的
环烷基、7 至 10 个
碳原子的
苯基或
苯基烷基,它们各自可以未被取代或被一个或多个羟基、1 至 4 个
碳原子的烷
氧基或烷
硫基取代、卤素原子、
氰基、硝基、羧基、2 至 5 个
碳原子的烷
氧羰基、
氨基、1 至 4 个
碳原子的烷基
氨基或 2 至 8 个
碳原子的二烷基
氨基,或当基团为正烷基或
苯基烷基时,被一个或多个 1 至 4 个
碳原子的烷基取代;
或 R2 和 R'共同代表 3 至 6 个
碳原子的烃链,可选择被一个杂原子打断;且 n 代表 1 至 6 的整数)及其酸盐是新型化合物,可用于治疗心脏疾病。此外,还描述了制备它们的工艺和含有它们的药物组合物。