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发明人赵玉洁,李文辉,刘建华. "A Process for Preparing High-Purity 4,6,7-Trimethyl-3-oxo-3,4-dihydroquinoxaline-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 110282398 A, 授权公告日 2017-03-14.
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