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发明人刘建华,冯建国,沈红梅. "Method for the Synthesis of 5-Chloro-2-ethyl-1-methyl-1H-indole-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 110847882 B, 授权公告日 2019-02-14.
发明人唐晓军,王建平,刘建华. "A Process for Preparing High-Purity 5-Chloro-2-ethyl-1-methyl-1H-indole-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 109368281 B, 授权公告日 2017-11-21.
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