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发明人韩伟,何建平,高志强. "A Process for Preparing High-Purity 6-(Ethanesulfonyl)-4-(thiophene-2-sulfonyl)-3,4-dihydro-2H-1,4-benzoxazine-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 116334305 B, 授权公告日 2024-05-13.
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