发明人李文辉,赵玉洁,黄志刚. "Method for the Synthesis of 2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-2-(4-chlorophenyl)acetic acid" [P]. 中国发明专利, 专利号 CN 112976093 A, 授权公告日 2015-07-12.
发明人马晓峰,罗永刚,郭海燕. "A Process for Preparing High-Purity 2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-2-(4-chlorophenyl)acetic acid" [P]. 中国发明专利, 专利号 CN 115371621 B, 授权公告日 2022-04-16.
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