申请人:American Home Products Corporation
公开号:US04233446A1
公开(公告)日:1980-11-11
7-Chloro-7,8-dihydro-7-oxo-pyrido[2,3]-d]pyrimidine-6-carboxylic acid derivatives are intermediates useful for the production of 7,8-dihydro-2,5,8-trisubstituted-7-oxo-pyrido[2,3-d]-pyrimidine-6-carboxyl ic acid derivatives which in turn are gastric anti-secretory agents for treatment of peptic ulcer disease and generally anti-allergic agents useful in the treatment of atopic immediate hypersensitivity reactions.
7-氯-7,8-二氢-7-氧基-吡啶[2,3-d]嘧啶-6-羧酸衍生物是用于生产7,8-二氢-2,5,8-三取代-7-氧基-吡啶[2,3-d]嘧啶-6-羧酸衍生物的中间体,而这些衍生物则是治疗消化性溃疡疾病的胃抗分泌药物,通常也是治疗过敏反应的抗过敏药物,对于特应性即时过敏反应尤其有用。