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发明人周伟,郑宇鹏,何建平. "A Process for Preparing High-Purity N-(7-oxo-6,7-dihydro-5H-indeno[5,6-d][1,3]dioxol-5-yl)thiophene-2-sulfonamide" [P]. 中国发明专利, 专利号 CN 114796826 B, 授权公告日 2017-05-19.
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