Lefèvre J P, Johansson L, Kowalski A. "Method for the Synthesis of 1-(Pyridin-3-yl)-1H-pyrazolo[3,4-d]pyrimidin-4(5H)-one" [P]. European Patent, EP 3015842 A1, 2018-03-19.
发明人冯建国,胡光,徐明华. "A Process for Preparing High-Purity 1-(Pyridin-3-yl)-1H-pyrazolo[3,4-d]pyrimidin-4(5H)-one" [P]. 中国发明专利, 专利号 CN 108957599 A, 授权公告日 2018-05-10.
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