申请人:Fidia S.p.A.
公开号:US04452811A1
公开(公告)日:1984-06-05
A selective process is described for producing monohalogenated derivatives of 7-hydroxy coumarin wherein the halo substituent is at the desired position and the final product is free of other monohalogenated isomers. The resulting products and pharmaceutical compositions containing the same, especially those wherein the halo substituent is at the 8 position, have valuable specific coronary vasodilating activity.
描述了一种选择性过程,用于生产7-羟基香豆素的单卤代衍生物,其中卤代取代基位于所需位置,最终产品不含其他单卤代异构体。得到的产品和含有这些产品的药物组合物,特别是其中卤代取代基位于8位的那些,具有有价值的特异性冠脉扩血管活性。