Novel 3-formylchromone derivatives are disclosed, substituted on the 5,6,7, or 8 positions by one or more of the following substituents: halogen, hydroxy, lower alkyl, lower alkoxy, lower acyl, lower acyloxy, or methylenedioxy. The corresponding 3-acetal or 3-hydrazone derivatives of the carboxaldehyde group are also disclosed. These compounds, and pharmaceutical compositions containing these compounds are useful for the treatment of allergic conditions and for the treatment of hyperacidity.
本发明公开了新型3-甲酰基香
色酮衍
生物,其在5、6、7或8位上被以下一种或多种取代基所取代:卤素、羟基、较低的烷基、较低的烷氧基、较低的酰基、较低的酰氧基或亚甲二氧基。还公开了相应的羧醛基的3-
缩醛或3-
肼酮衍
生物。这些化合物以及含有这些化合物的制药组合物对于治疗过敏症和治疗高酸度症是有用的。