申请人:EISAI CHEMICAL CO., LTD.
公开号:EP0832893A1
公开(公告)日:1998-04-01
An industrially excellent, novel process for producing cephem compounds which are useful as medicines, particularly, antibiotics and represented by the following general formula (III):
which comprises reacting in water a 3-cephem-4-carboxylate represented by the following general formula (I):
or a salt thereof with an acid chloride represented by the general formula (II), R1COCl.
一种工业上优秀的新型制备头孢菌素类化合物的方法,该化合物可作为药物,特别是抗生素,其通式(III)如下:其中在水中反应下述通式(I)所示的3-头孢烷-4-羧酸酯或其盐与下述一般式(II)R1COCl的酸氯化物。