发明人郑宇鹏,韩伟,冯建国. "Method for the Synthesis of Dutasteride EP Impurity B" [P]. 中国发明专利, 专利号 CN 108346906 A, 授权公告日 2022-05-04.
发明人李文辉,朱建伟,周伟. "A Process for Preparing High-Purity Dutasteride EP Impurity B" [P]. 中国发明专利, 专利号 CN 111111224 A, 授权公告日 2016-01-26.
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