| abstract |
(57) [Summary] [Objective] To provide a novel acridone derivative effective in the preventive treatment of diseases involving histamine, leukotriene and the like. [Structure] Acridone derivative represented by the following general formula and / Or a pharmacologically acceptable salt. ## STR00001 ## The present compound is a prophylactic / therapeutic agent for asthma, allergic rhinitis, atopic dermatitis, urticaria, hay fever, gastrointestinal allergy, food allergy and the like. |