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发明人罗永刚,冯建国,郑宇鹏. "A Process for Preparing High-Purity Tert-butyl 4-(((3-nitropyridin-2-yl)oxy)methyl)piperidine-1-carboxylate" [P]. 中国发明专利, 专利号 CN 111243259 A, 授权公告日 2017-04-25.
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