发明授权
US4665168A Cephalosporin intermediate 失效
头孢菌素中间体

Cephalosporin intermediate
摘要:
7-Amino-3-pyridiniummethyl (and substituted pyridiniummethyl)-3-cephem-4-carboxylic acid hydrothiocyanate salts and a process for the preparation thereof are provided. The salts are useful for recovering the pyridinium nuclei from reaction mixtures in which they are formed or used.
公开/授权文献
信息查询
0/0