发明人杨光,周伟,沈红梅. "Method for the Synthesis of Ethyl 2-(3,4-dimethoxyphenyl)-2,2-difluoroacetate" [P]. 中国发明专利, 专利号 CN 110884888 B, 授权公告日 2020-06-24.
发明人沈红梅,黄志刚,李文辉. "A Process for Preparing High-Purity Ethyl 2-(3,4-dimethoxyphenyl)-2,2-difluoroacetate" [P]. 中国发明专利, 专利号 CN 109863323 A, 授权公告日 2021-01-01.
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