发明人刘建华,陈志强,孙丽萍. "Method for the Synthesis of 3-(3-Chlorobenzenesulfonyl)-1-ethyl-6,7-difluoro-1,4-dihydroquinolin-4-one" [P]. 中国发明专利, 专利号 CN 112128265 A, 授权公告日 2020-05-12.
发明人赵玉洁,唐晓军,冯建国. "A Process for Preparing High-Purity 3-(3-Chlorobenzenesulfonyl)-1-ethyl-6,7-difluoro-1,4-dihydroquinolin-4-one" [P]. 中国发明专利, 专利号 CN 114645606 A, 授权公告日 2022-10-21.
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