发明人杨光,韩伟,胡光. "一种甲羟孕酮杂质9的合成方法" [P]. 中国发明专利, 专利号 CN 113958724 A, 授权公告日 2017-11-11.
发明人何建平,黄志刚,高志强. "Method for the Synthesis of Medroxyprogesterone impurity 9" [P]. 中国发明专利, 专利号 CN 112436436 B, 授权公告日 2023-08-19.
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