发明人赵玉洁,韩伟,杨光. "Method for the Synthesis of 5-Bromobenzofuran-2-carboxylic Acid Methyl Ester" [P]. 中国发明专利, 专利号 CN 108722873 B, 授权公告日 2015-03-08.
发明人高志强,郑宇鹏,孙丽萍. "A Process for Preparing High-Purity 5-Bromobenzofuran-2-carboxylic Acid Methyl Ester" [P]. 中国发明专利, 专利号 CN 113956985 B, 授权公告日 2019-11-18.
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