A process for preparing Tetroxoprim starting from 3,5-dimethoxy-4-methoxyethoxy-benzaldehyde and 2,4-di- amino-6-hydroxy-pyrimidine, by successive hydrogenation, halogenation and hydrogenolysis of the 2,4-diamino-6-oxo-5-(3,5-dimethoxy-4-methoxyethoxy-benzylidene)-pyrimidine obtained in the initial reaction.
一种以 3,5-二甲氧基-4-甲氧基乙氧基
苯甲醛和 2,4-二
氨基-6-
羟基嘧啶为原料,通过对初始反应中得到的 2,4-二
氨基-6-氧代-5-(3,5-二甲氧基-4-甲氧基乙氧基亚苄基)-
嘧啶进行连续氢化、卤化和氢解,制备四氧
嘧啶的工艺。