Chen K W, Fischer A B, Roberts E F. "一种吲哚-2,4-二羧酸-2-乙酯-4-甲酯的合成方法" [P]. US Patent, US 9441653 B2, 2017-03-23.
发明人郭海燕,周伟,徐明华. "Method for the Synthesis of 2-Ethyl 4-methyl 1H-indole-2,4-dicarboxylate" [P]. 中国发明专利, 专利号 CN 113429798 B, 授权公告日 2019-10-27.
发明人李文辉,冯建国,刘建华. "A Process for Preparing High-Purity 2-Ethyl 4-methyl 1H-indole-2,4-dicarboxylate" [P]. 中国发明专利, 专利号 CN 117295277 A, 授权公告日 2024-01-17.
参考文献 Literature
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