发明人唐晓军,郑宇鹏,陈志强. "Method for the Synthesis of Difluprednate Impurity N2" [P]. 中国发明专利, 专利号 CN 117918838 B, 授权公告日 2023-03-19.
发明人何建平,钱学锋,李文辉. "A Process for Preparing High-Purity Difluprednate Impurity N2" [P]. 中国发明专利, 专利号 CN 113070996 A, 授权公告日 2015-09-16.
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