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发明人朱建伟,陈志强,钱学锋. "A Process for Preparing High-Purity 4-Tert-butyl 2-ethyl 5-amino-3-methylthiophene-2,4-dicarboxylate" [P]. 中国发明专利, 专利号 CN 113251752 A, 授权公告日 2016-03-13.
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