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发明人钱学锋,李文辉,郭海燕. "Method for the Synthesis of 4-Methylindole-3-carboxylic Acid" [P]. 中国发明专利, 专利号 CN 110571960 B, 授权公告日 2024-02-16.
发明人高志强,刘建华,黄志刚. "A Process for Preparing High-Purity 4-Methylindole-3-carboxylic Acid" [P]. 中国发明专利, 专利号 CN 111641291 B, 授权公告日 2024-03-26.
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