申请人:Murthy Yerramilli V.S.N.
公开号:US20100113768A1
公开(公告)日:2010-05-06
The invention is directed to an improved process for preparing cefsulodin sodium. The process involves: (i) dissolving cefsulodin in a solvent comprising an organic solvent to provide a solution of cefsulodin, (ii) adding about 1 equivalent of a sodium salt of a base to the solution of cefsulodin to provide a solution of cefsulodin sodium, and (iii) separating the cefsulodin sodium from the solution of cefsulodin sodium.
本发明涉及一种改进的制备头孢磺胺钠的工艺。该工艺包括:(i)将头孢磺胺溶解在包含有机溶剂的溶剂中,以提供头孢磺胺的溶液,(ii)向头孢磺胺溶液中加入约1当量的碱的钠盐,以提供头孢磺胺钠的溶液,(iii)从头孢磺胺钠的溶液中分离出头孢磺胺钠。