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发明人王建平,陈志强,李文辉. "Method for the Synthesis of 1,3-Dimethyl-6-(pyridin-4-yl)-1H-pyrazolo[3,4-b]pyridine-4-carboxylic acid" [P]. 中国发明专利, 专利号 CN 109628187 B, 授权公告日 2023-05-11.
Jørgensen K, Johansson L, Lefèvre J P. "A Process for Preparing High-Purity 1,3-Dimethyl-6-(pyridin-4-yl)-1H-pyrazolo[3,4-b]pyridine-4-carboxylic acid" [P]. European Patent, EP 3561180 A1, 2024-05-27.
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