发明人何建平,唐晓军,杨光. "Method for the Synthesis of Rac-methyl (3r,4r)-4-(difluoromethyl)pyrrolidine-3-carboxylate hydrochloride" [P]. 中国发明专利, 专利号 CN 117389201 B, 授权公告日 2019-06-10.
发明人陈志强,林芳,刘建华. "A Process for Preparing High-Purity Rac-methyl (3r,4r)-4-(difluoromethyl)pyrrolidine-3-carboxylate hydrochloride" [P]. 中国发明专利, 专利号 CN 116087600 A, 授权公告日 2016-07-20.
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