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发明人林芳,郑宇鹏,马晓峰. "A Process for Preparing High-Purity Methyl 1-benzyl-2-methyl-5-oxo-4,5-dihydro-1H-pyrrole-3-carboxylate" [P]. 中国发明专利, 专利号 CN 109550095 B, 授权公告日 2023-03-06.
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