发明人黄志刚,林芳,郭海燕. "Method for the Synthesis of Methyl 3-Hydroxybenzofuran-2-carboxylate" [P]. 中国发明专利, 专利号 CN 108512012 B, 授权公告日 2021-02-09.
发明人韩伟,罗永刚,刘建华. "A Process for Preparing High-Purity Methyl 3-Hydroxybenzofuran-2-carboxylate" [P]. 中国发明专利, 专利号 CN 116820275 A, 授权公告日 2020-02-14.
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