发明人何建平,林芳,韩伟. "一种黄体酮EP杂质G的合成方法" [P]. 中国发明专利, 专利号 CN 111565335 A, 授权公告日 2021-07-28.
发明人冯建国,李文辉,沈红梅. "Method for the Synthesis of Progesterone EP Impurity G" [P]. 中国发明专利, 专利号 CN 111671541 B, 授权公告日 2022-08-17.
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