发明人黄志刚,杨光,陈志强. "Method for the Synthesis of 3-(Hydroxymethylene)-6-methoxyindolin-2-one" [P]. 中国发明专利, 专利号 CN 111275961 A, 授权公告日 2015-04-23.
发明人刘建华,黄志刚,张德明. "A Process for Preparing High-Purity 3-(Hydroxymethylene)-6-methoxyindolin-2-one" [P]. 中国发明专利, 专利号 CN 109253213 A, 授权公告日 2019-08-01.
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