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发明人郭海燕,黄志刚,赵玉洁. "Method for the Synthesis of Methyl 4,6-Difluoroindole-2-carboxylate" [P]. 中国发明专利, 专利号 CN 117102358 A, 授权公告日 2024-04-15.
发明人林芳,张德明,刘建华. "A Process for Preparing High-Purity Methyl 4,6-Difluoroindole-2-carboxylate" [P]. 中国发明专利, 专利号 CN 108046159 B, 授权公告日 2023-05-15.
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