发明人罗永刚,李文辉,钱学锋. "Method for the Synthesis of 1-(2,2-Difluoroethyl)piperidine-4-carboxylic acid" [P]. 中国发明专利, 专利号 CN 110288645 A, 授权公告日 2020-10-09.
发明人唐晓军,胡光,陈志强. "A Process for Preparing High-Purity 1-(2,2-Difluoroethyl)piperidine-4-carboxylic acid" [P]. 中国发明专利, 专利号 CN 115020881 B, 授权公告日 2022-10-26.
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