发明人马晓峰,罗永刚,沈红梅. "一种【停用,请询C4X-120520】的合成方法" [P]. 中国发明专利, 专利号 CN 110220717 A, 授权公告日 2019-11-10.
发明人黄志刚,冯建国,孙丽萍. "Method for the Synthesis of Tazobactam Acid Impurity 34" [P]. 中国发明专利, 专利号 CN 112843462 B, 授权公告日 2018-01-03.
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