发明人林芳,张德明,周伟. "Method for the Synthesis of Cefuroxime Sodium EP Impurity I(Ammonium Salt)" [P]. 中国发明专利, 专利号 CN 114813976 B, 授权公告日 2016-10-21.
发明人黄志刚,钱学锋,郑宇鹏. "A Process for Preparing High-Purity Cefuroxime Sodium EP Impurity I(Ammonium Salt)" [P]. 中国发明专利, 专利号 CN 111649523 A, 授权公告日 2018-01-06.
参考文献 Literature
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