发明人赵玉洁,韩伟,孙丽萍. "Method for the Synthesis of 6,7-Difluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 117360193 B, 授权公告日 2022-09-12.
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