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发明人朱建伟,唐晓军,冯建国. "A Process for Preparing High-Purity 4-(ethoxycarbonyl)-5-methyl-1H-pyrrole-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 116164154 B, 授权公告日 2019-04-01.
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