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发明人马晓峰,周伟,孙丽萍. "A Process for Preparing High-Purity (S)-2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-2-(3-chlorophenyl)acetic acid" [P]. 中国发明专利, 专利号 CN 109171842 B, 授权公告日 2016-07-12.
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