The present invention provides a process for the preparation of Cefditoren of formula (I) which comprises acylating 7-amino-cephem carboxylic acids of the general formula (IV), where R3 is hydrogen or trimethylsilyl with thioester derivatives of the formula (II), where R1 represents C1 - C4 alkyl or phenyl in an organic solvent in the presence of an organic base at a temperature in the range of -10 °C to 30 °C.
本发明提供了一种制备式(I)的头孢地妥酯的方法,该方法包括在有机溶剂中,在有机碱的存在下,将一般式(IV)的7-
氨基-
头孢菌素羧酸(其中R3为氢或三甲基
硅基)与一般式(II)的
硫酯衍
生物(其中R1代表C1-C4烷基或苯基)酰化,反应温度在-10°C至30°C范围内。