申请人:Kyoto Pharmaceutical Industries, Ltd.
公开号:EP0186706A1
公开(公告)日:1986-07-09
A process for preparing cephalosporin derivatives represented by general formula (I), which comprises reacting a compound of general formula (II) or its reactive derivative with a compound of general formula (III) or eliminating an R' group from a compound of general formula (IV). In the above-mentioned formulae, R' represents formyl, t-butoxycarbonyl, 1-methyl-2-methoxycarbonylvinyl, 1-methyl-2- ethoxycarbonylvinyl, benzyloxycarbonyl, p-methoxybenzyloxycarbonyl, chloroacetyl, trityl, silyl or 2,2,2-trichloroethoxycarbonyl, and R2 represents a hydrogen atom or a hydroxy group.
一种制备头孢菌素衍生物的过程,其表示为通式(I),包括将通式(II)化合物或其反应衍生物与通式(III)化合物反应或从通式(IV)化合物中消除R'基团。在上述公式中,R'代表甲酰基,叔丁氧羰基,1-甲基-2-甲氧羰基乙烯基,1-甲基-2-乙氧羰基乙烯基,苄氧羰基,对甲氧基苄氧羰基,氯乙酰基,三苯甲基,硅基或2,2,2-三氯乙氧羰基,而R2代表氢原子或羟基。