发明人李文辉,陈志强,林芳. "Method for the Synthesis of Benzofuran-4-sulfonamide" [P]. 中国发明专利, 专利号 CN 112040866 B, 授权公告日 2017-02-17.
发明人冯建国,罗永刚,赵玉洁. "A Process for Preparing High-Purity Benzofuran-4-sulfonamide" [P]. 中国发明专利, 专利号 CN 117487887 A, 授权公告日 2024-06-17.
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