发明人朱建伟,罗永刚,杨光. "Method for the Synthesis of Ethyl 4-(2-((2,5-difluorophenyl)sulfonyl)acetamido)benzoate" [P]. 中国发明专利, 专利号 CN 117057306 B, 授权公告日 2019-08-28.
发明人赵玉洁,马晓峰,徐明华. "A Process for Preparing High-Purity Ethyl 4-(2-((2,5-difluorophenyl)sulfonyl)acetamido)benzoate" [P]. 中国发明专利, 专利号 CN 114553696 B, 授权公告日 2019-06-11.
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