发明人徐明华,杨光,朱建伟. "Method for the Synthesis of 6-Hydroxy-1H-indole-2-carboxylic acid methyl ester" [P]. 中国发明专利, 专利号 CN 110032564 A, 授权公告日 2022-03-19.
发明人刘建华,冯建国,黄志刚. "A Process for Preparing High-Purity 6-Hydroxy-1H-indole-2-carboxylic acid methyl ester" [P]. 中国发明专利, 专利号 CN 117547140 A, 授权公告日 2021-08-20.
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