A fluorine-containing uridine derivative of the formula:
wherein R is lower acyl, fluorine-containing lower acyl or fluorine-containing lower alkyl; and X is hydrogen or hydroxyl, which is prepared by a process fluorinating 2', 3'-O-isopropylideneuridine with fluorine in a solvent selected from the group consisting of lower carboxylic acids, fluorine-containing lower carboxylic acids and fluorine-containing lower alcohols, and is converted to a 5-fluorouridine derivative of the formula:
wherein R and X are as defined above by reacting the fluorine-containing uridine derivative of the formula (I) with a base in an organic solvent at a temperature of 0 to 80°C.
式中 R 为低级酰基、含
氟低级酰基或含
氟低级烷基;X 为氢或羟基的含
氟尿苷衍
生物,其制备方法是在选自低级
羧酸、含
氟低级
羧酸和含
氟低级醇的溶剂中将 2',3'-O-异亚丙基
尿苷与
氟氟化,并在 0 至 80°C 温度下在有机溶剂中将式(I)的含
氟尿苷衍
生物与碱反应,转化为式中 R 和 X 如上定义的
5-氟尿苷衍
生物。