The invention relates to a process for the synthesis of 6-chloromethyluracil (6-(chloromethyl)pyrimidin-2,4(1H,3H)-dione) from ethyl 4-chloroacetoacetate and S- methylisothiourea hemisulfate via isolation of the novel intermediate 6- (chloromethyl)-6-hydroxy-2-(methylthio)-5,6-dihydropyrimidin-4(1H)-one, and its subsequent treatment with aqueous sulfuric acid. Formula (I).
本发明涉及一种从
乙酰乙酸乙酯和S-甲基异
硫脲半
硫酸盐合成6-
氯甲基尿
嘧啶(6-(
氯甲基)
嘧啶-2,4(1H,3H)-二酮)的过程,通过分离新型中间体6-(
氯甲基)-6-羟基-2-(甲
硫基)-5,6-二氢
嘧啶-4(1H)-酮,随后用
水合硫酸处理。公式(I)。