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发明人李文辉,马晓峰,杨光. "Method for the Synthesis of 2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-3-(4-cyanophenyl)propanoic acid" [P]. 中国发明专利, 专利号 CN 116046826 B, 授权公告日 2020-06-11.
发明人马晓峰,陈志强,韩伟. "A Process for Preparing High-Purity 2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-3-(4-cyanophenyl)propanoic acid" [P]. 中国发明专利, 专利号 CN 116179614 A, 授权公告日 2018-06-06.
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