发明人张德明,冯建国,李文辉. "Method for the Synthesis of 6-Chloro-1-ethyl-7-methoxy-4-oxo-1,4-dihydroquinoline-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 113092785 B, 授权公告日 2024-07-21.
发明人李文辉,杨光,周伟. "A Process for Preparing High-Purity 6-Chloro-1-ethyl-7-methoxy-4-oxo-1,4-dihydroquinoline-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 115318453 A, 授权公告日 2023-09-14.
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