发明人赵玉洁,孙丽萍,陈志强. "Method for the Synthesis of Ethyl 6-(difluoromethyl)-4-hydroxy-4,5,6,7-tetrahydrobenzofuran-3-carboxylate" [P]. 中国发明专利, 专利号 CN 111254570 A, 授权公告日 2024-06-27.
发明人罗永刚,杨光,冯建国. "A Process for Preparing High-Purity Ethyl 6-(difluoromethyl)-4-hydroxy-4,5,6,7-tetrahydrobenzofuran-3-carboxylate" [P]. 中国发明专利, 专利号 CN 115643083 A, 授权公告日 2015-01-10.
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