发明人冯建国,孙丽萍,黄志刚. "Method for the Synthesis of 2,4,7,9-tetramethylbenzo[b]-1,8-naphthyridin-5-amine" [P]. 中国发明专利, 专利号 CN 112989164 B, 授权公告日 2021-07-02.
发明人何建平,林芳,刘建华. "A Process for Preparing High-Purity 2,4,7,9-tetramethylbenzo[b]-1,8-naphthyridin-5-amine" [P]. 中国发明专利, 专利号 CN 110200280 A, 授权公告日 2016-08-17.
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