发明人徐明华,胡光,刘建华. "Method for the Synthesis of 4-(2,2-Difluoro-ethylamino)-piperidine-1-carboxylic acid tert-butyl ester" [P]. 中国发明专利, 专利号 CN 115846011 B, 授权公告日 2017-02-14.
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