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发明人马晓峰,何建平,徐明华. "A Process for Preparing High-Purity 7-(2-(4-(3-Chlorophenyl)piperazin-1-yl)-2-oxoethoxy)-4-methyl-2H-chromen-2-one" [P]. 中国发明专利, 专利号 CN 112683827 A, 授权公告日 2022-02-21.
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