申请人:Burroughs Wellcome Co.
公开号:US03950342A1
公开(公告)日:1976-04-13
Certain acridone and xanthone compounds, each of which is 2-substituted by a carboxyl group or a salt, ester or optionally substituted amide thereof and each of which is optionally substituted in the 5-, 6-, 7- or 8-position, by a second carboxyl group, salt, ester or optionally substituted amide thereof, the substituent in the 5-, 6-, 7- or 8-position of the acridone compounds, also being selected from cyano, halogen, nitro, alkyl, alkoxy and acyl, are useful for the relief or prophylaxis of allergic conditions.
某些苦茶酮和黄酮化合物,每个化合物均以羧基或盐、酯或可选择性取代的酰胺取代的2-位,每个化合物在5-、6-、7-或8-位上可选择性地取代,具有第二羧基、盐、酯或可选择性取代的酰胺,苦茶酮化合物在5-、6-、7-或8-位上的取代基还可选择自氰基、卤素、硝基、烷基、烷氧基和酰基,可用于缓解或预防过敏症状。