发明公开
EP0011839A1 Coumarin derivatives, process for preparing the same and pharmaceutical composition containing the same 失效
香豆素衍生物,用于处理含有它们的制备方法和药物组合物。

Coumarin derivatives, process for preparing the same and pharmaceutical composition containing the same
摘要:
Coumarin derivatives of the general formula:
wherein R is hydrogen atom, an alkyl group or an alkenyl group, R 1 is hydrogen atom, an alkyl group, an alkenyl group or an alkoxyl group, and the OR and R 1 groups each are substituted at any of the 5,6, and 8 positions of the coumarin ring, and the salt thereof. The compounds are useful as antiallergic agent for preventing and treating allergic diseases.
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