发明人王建平,黄志刚,马晓峰. "Method for the Synthesis of Altrenogest Impurity 5" [P]. 中国发明专利, 专利号 CN 109111494 B, 授权公告日 2016-03-04.
发明人冯建国,王建平,林芳. "A Process for Preparing High-Purity Altrenogest Impurity 5" [P]. 中国发明专利, 专利号 CN 111093076 A, 授权公告日 2017-02-05.
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