发明人陈志强,杨光,韩伟. "Method for the Synthesis of 4-Isobutoxy-3-methylbenzofuran-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 115872143 A, 授权公告日 2019-09-23.
发明人刘建华,林芳,沈红梅. "A Process for Preparing High-Purity 4-Isobutoxy-3-methylbenzofuran-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 115378613 B, 授权公告日 2015-01-16.
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