Coumarin derivatives of the general formula:
wherein R is hydrogen atom, an alkyl group or an alkenyl group, R1 is hydrogen atom, an alkyl group, an alkenyl group or an alkoxyl group, and the OR and R1 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.
通式如下的
香豆素衍
生物
其中 R 是
氢原子、烷基或
烯基,R1 是
氢原子、烷基、
烯基或烷
氧基,OR 和 R1 基团分别在
香豆素环的 5、6 和 8 位上被取代,以及它们的盐。这些化合物可作为抗过敏剂用于预防和治疗过敏性疾病。