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发明人马晓峰,黄志刚,沈红梅. "A Process for Preparing High-Purity (S)-Methyl 3-((tert-butoxycarbonyl)amino)-3-methyl-2-(((S)-1-phenylethyl)amino)butanoate" [P]. 中国发明专利, 专利号 CN 117082086 B, 授权公告日 2020-02-27.
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