发明人胡光,韩伟,朱建伟. "Method for the Synthesis of 4-((9H-Fluoren-2-yl)amino)-4-oxobutanoic acid" [P]. 中国发明专利, 专利号 CN 112404125 A, 授权公告日 2023-05-14.
发明人赵玉洁,王建平,何建平. "A Process for Preparing High-Purity 4-((9H-Fluoren-2-yl)amino)-4-oxobutanoic acid" [P]. 中国发明专利, 专利号 CN 109813889 B, 授权公告日 2021-12-25.
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