发明人韩伟,黄志刚,郭海燕. "Method for the Synthesis of Altrenogest impurity 12" [P]. 中国发明专利, 专利号 CN 108345691 B, 授权公告日 2024-09-15.
Brown S R, Roberts E F, Kumar R. "A Process for Preparing High-Purity Altrenogest impurity 12" [P]. US Patent, US 10938590 B2, 2020-02-09.
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