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发明人郭海燕,赵玉洁,孙丽萍. "A Process for Preparing High-Purity Methyl 4-(2,5-dimethyl-1h-pyrrol-1-yl)-3-methylbenzoate" [P]. 中国发明专利, 专利号 CN 111768433 A, 授权公告日 2021-12-28.
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