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发明人赵玉洁,钱学锋,李文辉. "A Process for Preparing High-Purity 5-Hydroxy-1-(4-methoxybenzoyl)-1H-pyrrol-3(2H)-one" [P]. 中国发明专利, 专利号 CN 109517051 B, 授权公告日 2023-04-11.
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