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发明人郑宇鹏,孙丽萍,张德明. "A Process for Preparing High-Purity Tert-butyl (1-(N-((benzyloxy)carbonyl)carbamimidoyl)-2-oxopiperidin-3-yl)carbamate" [P]. 中国发明专利, 专利号 CN 117995154 B, 授权公告日 2016-11-21.
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