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.
本发明提供了用于制备具有优异抗菌活性的7-酰
氨基
头孢菌素化合物的有用中间体作为酰化剂。更具体地,本发明涉及制备
5-氨基-1,2,4-噻二唑乙酸衍
生物的方法。