发明人张德明,孙丽萍,刘建华. "一种1-羟基-1H-吲哚-4-甲腈的合成方法" [P]. 中国发明专利, 专利号 CN 115942102 A, 授权公告日 2020-07-08.
Chen K W, Klinger H, Stevens L M. "Method for the Synthesis of 1-Hydroxy-1H-indole-4-carbonitrile" [P]. US Patent, US 11562625 B2, 2019-01-10.
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