申请人:Bayer Aktiengesellschaft
公开号:US04703121A1
公开(公告)日:1987-10-27
5-fluorocytosine is prepared by reacting 2,5-difluoro-4-chloro-pyrimidine with a proton acid in the presence of water to yield 2-hydroxy-4-chloro-5-fluoropyrimidine and reacting the 2-hydroxy-4-chloro-5-fluoropyrimidine with ammonia to yield 5-fluoro-cytosine.
5-氟胞嘧啶是通过将2,5-二氟-4-氯嘧啶与质子酸在水的存在下反应,生成2-羟基-4-氯-5-氟嘧啶,然后将2-羟基-4-氯-5-氟嘧啶与氨反应制备而成的。