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发明人刘建华,冯建国,朱建伟. "A Process for Preparing High-Purity 3-(4-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)phenyl)propanoic acid" [P]. 中国发明专利, 专利号 CN 116704484 A, 授权公告日 2018-07-09.
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