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发明人赵玉洁,徐明华,胡光. "A Process for Preparing High-Purity 4-Hydroxy-6-methyl-2-oxo-1-phenyl-1,2-dihydropyridine-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 110937973 A, 授权公告日 2023-05-04.
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