发明人王建平,刘建华,黄志刚. "Method for the Synthesis of Hydrocortisone Impurity N1" [P]. 中国发明专利, 专利号 CN 113206431 A, 授权公告日 2018-11-02.
Björnsson E, Kowalski A, Lefèvre J P. "A Process for Preparing High-Purity Hydrocortisone Impurity N1" [P]. European Patent, EP 3331305 A1, 2022-01-01.
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