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发明人陈志强,冯建国,王建平. "Method for the Synthesis of tert-Butyl 4,4-difluoro-3-(2-oxopropyl)piperidine-1-carboxylate" [P]. 中国发明专利, 专利号 CN 112099833 A, 授权公告日 2019-05-02.
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