发明人李文辉,钱学锋,张德明. "Method for the Synthesis of 4-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-5-bromonicotinic acid" [P]. 中国发明专利, 专利号 CN 113864609 B, 授权公告日 2017-07-19.
发明人胡光,王建平,孙丽萍. "A Process for Preparing High-Purity 4-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-5-bromonicotinic acid" [P]. 中国发明专利, 专利号 CN 115672441 A, 授权公告日 2022-11-14.
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