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发明人刘建华,李文辉,周伟. "A Process for Preparing High-Purity 3-[(Benzenesulfonyl)methyl]-2-(4-chlorobenzoyl)-1-benzofuran" [P]. 中国发明专利, 专利号 CN 115762304 A, 授权公告日 2022-04-24.
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