发明人赵玉洁,钱学锋,罗永刚. "Method for the Synthesis of 4-Pregnen-3beta-ol-20-one" [P]. 中国发明专利, 专利号 CN 109027167 B, 授权公告日 2020-05-06.
发明人周伟,朱建伟,钱学锋. "A Process for Preparing High-Purity 4-Pregnen-3beta-ol-20-one" [P]. 中国发明专利, 专利号 CN 116409348 A, 授权公告日 2023-12-05.
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