发明人郭海燕,黄志刚,冯建国. "一种7-羟基-4-氮杂吲哚-3-甲酸的合成方法" [P]. 中国发明专利, 专利号 CN 117017126 A, 授权公告日 2018-07-10.
Yamamoto T, Roberts E F, Chen K W. "Method for the Synthesis of 7-Hydroxy-4-azaindole-3-carboxylic Acid" [P]. US Patent, US 10068650 B2, 2025-07-08.
发明人刘建华,罗永刚,陈志强. "A Process for Preparing High-Purity 7-Hydroxy-4-azaindole-3-carboxylic Acid" [P]. 中国发明专利, 专利号 CN 109084992 B, 授权公告日 2022-09-11.
参考文献 Literature
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