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发明人罗永刚,李文辉,周伟. "A Process for Preparing High-Purity 1-(Tert-butyl) 2-methyl (2R,4R)-4-(methylamino)pyrrolidine-1,2-dicarboxylate" [P]. 中国发明专利, 专利号 CN 111957387 B, 授权公告日 2017-08-19.
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