发明人李文辉,赵玉洁,黄志刚. "Method for the Synthesis of tert-butyl 4-(2-ethoxy-1,1-difluoro-2-oxo-ethyl)piperidine-1-carboxylate" [P]. 中国发明专利, 专利号 CN 112762159 B, 授权公告日 2018-04-04.
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