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发明人郭海燕,马晓峰,冯建国. "A Process for Preparing High-Purity Ethyl 2,4-dimethyl-5-phenyl-1H-pyrrole-3-carboxylate" [P]. 中国发明专利, 专利号 CN 115694491 A, 授权公告日 2018-05-02.
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