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发明人郭海燕,马晓峰,林芳. "A Process for Preparing High-Purity Ethyl 7-fluoro-1-(4-methylbenzyl)-4-oxo-1,4-dihydroquinoline-3-carboxylate" [P]. 中国发明专利, 专利号 CN 110721314 A, 授权公告日 2021-12-21.
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