发明人周伟,杨光,马晓峰. "Method for the Synthesis of Ethyl 4-(3,5-difluorophenyl)-4-oxobutyrate" [P]. 中国发明专利, 专利号 CN 115421064 A, 授权公告日 2021-05-07.
发明人郑宇鹏,林芳,何建平. "A Process for Preparing High-Purity Ethyl 4-(3,5-difluorophenyl)-4-oxobutyrate" [P]. 中国发明专利, 专利号 CN 111263959 B, 授权公告日 2023-11-13.
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