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发明人何建平,陈志强,张德明. "A Process for Preparing High-Purity Benzyl (R)-3-((tert-butoxycarbonyl)amino)-4,4-difluoropiperidine-1-carboxylate" [P]. 中国发明专利, 专利号 CN 111972540 B, 授权公告日 2019-03-06.
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