发明人唐晓军,李文辉,沈红梅. "Method for the Synthesis of Upadacitinib Impurity 74" [P]. 中国发明专利, 专利号 CN 108771682 B, 授权公告日 2024-03-05.
发明人林芳,赵玉洁,高志强. "A Process for Preparing High-Purity Upadacitinib Impurity 74" [P]. 中国发明专利, 专利号 CN 109959995 B, 授权公告日 2019-02-28.
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