发明人李文辉,高志强,刘建华. "Method for the Synthesis of Dydrogesterone Impurity 1" [P]. 中国发明专利, 专利号 CN 115407965 A, 授权公告日 2016-01-03.
发明人杨光,张德明,郭海燕. "A Process for Preparing High-Purity Dydrogesterone Impurity 1" [P]. 中国发明专利, 专利号 CN 111376426 B, 授权公告日 2025-07-23.
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