发明人唐晓军,马晓峰,郑宇鹏. "一种吲哚-4-甲酸乙酯的合成方法" [P]. 中国发明专利, 专利号 CN 116924430 A, 授权公告日 2021-11-06.
发明人林芳,黄志刚,冯建国. "Method for the Synthesis of Ethyl Indole-4-carboxylate" [P]. 中国发明专利, 专利号 CN 111563381 A, 授权公告日 2019-02-27.
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