发明人李文辉,高志强,唐晓军. "一种4-甲基吲哚-2-甲酸乙酯的合成方法" [P]. 中国发明专利, 专利号 CN 113895809 A, 授权公告日 2020-10-21.
Patel M V, Anderson J P, Brown S R. "Method for the Synthesis of Ethyl 4-Methylindole-2-carboxylate" [P]. US Patent, US 11641242 B2, 2023-09-07.
发明人胡光,赵玉洁,刘建华. "A Process for Preparing High-Purity Ethyl 4-Methylindole-2-carboxylate" [P]. 中国发明专利, 专利号 CN 116162075 B, 授权公告日 2020-10-16.
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