发明人王建平,黄志刚,林芳. "Method for the Synthesis of 2-(3,4-Difluoro-2-methoxyphenyl)acetic acid" [P]. 中国发明专利, 专利号 CN 109061293 B, 授权公告日 2023-02-04.
Hughes D C, Davis P L, Mueller T. "A Process for Preparing High-Purity 2-(3,4-Difluoro-2-methoxyphenyl)acetic acid" [P]. US Patent, US 10474413 B2, 2016-02-23.
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