发明人黄志刚,李文辉,林芳. "Method for the Synthesis of 4-ethyl-3,3-difluoro-pyrrolidine;hydrochloride" [P]. 中国发明专利, 专利号 CN 115476875 A, 授权公告日 2019-12-06.
发明人韩伟,郑宇鹏,孙丽萍. "A Process for Preparing High-Purity 4-ethyl-3,3-difluoro-pyrrolidine;hydrochloride" [P]. 中国发明专利, 专利号 CN 115274640 A, 授权公告日 2022-02-02.
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