The invention provides useful intermediates as acylating agents for preparing 7-acylaminocephalosporin compounds which show excellent antimicrobial activities. More particularly, the present invention relates to a process for preparing 5-amino-1,2,4-thiadiazole acetic acid derivatives.
本发明提供了有用的中间体作为酰化剂,用于制备显示出优异抗菌活性的 7-酰
氨基
头孢菌素化合物。更具体地说,本发明涉及一种制备
5-氨基-1,2,4-噻二唑乙酸衍
生物的工艺。