发明人杨光,李文辉,胡光. "Method for the Synthesis of 3-Hydroxy-1H-indole-2-carbonitrile" [P]. 中国发明专利, 专利号 CN 117896052 B, 授权公告日 2018-05-09.
发明人赵玉洁,林芳,韩伟. "A Process for Preparing High-Purity 3-Hydroxy-1H-indole-2-carbonitrile" [P]. 中国发明专利, 专利号 CN 110261402 B, 授权公告日 2021-03-19.
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