申请人:Laboratoire Roger Bellon
公开号:US03950338A1
公开(公告)日:1976-04-13
Valuable antibacterial 8-alkyl-5-oxo-5,8-dihydro-pyrido(2,3-d)pyrimidine-6-carboxylic acids, some of which are new compounds, are made from corresponding pyrimidines by a process involving condensation with an amino-ester, cyclization, halogenation, dehydrohalogenation, and saponification.
宝贵的抗菌性8-烷基-5-氧基-5,8-二氢吡啶(2,3-d)嘧啶-6-羧酸,其中一些是新化合物,通过涉及与氨基酯的缩合、环化、卤代、脱卤和皂化的过程从相应的嘧啶制备而成。