发明人何建平,陈志强,冯建国. "Method for the Synthesis of 2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-4-nitrobenzoic acid" [P]. 中国发明专利, 专利号 CN 109588764 B, 授权公告日 2020-01-07.
发明人唐晓军,刘建华,林芳. "A Process for Preparing High-Purity 2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-4-nitrobenzoic acid" [P]. 中国发明专利, 专利号 CN 117016213 B, 授权公告日 2025-10-27.
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