Nowak P, Sørensen M, Jørgensen K. "一种的合成方法" [P]. European Patent, EP 3037786 A1, 2017-12-09.
发明人王建平,马晓峰,唐晓军. "Method for the Synthesis of 4-((4-Methoxybenzyl)amino)-1-methyl-1H-pyrazolo[3,4-b]pyridine-5-carboxylic acid" [P]. 中国发明专利, 专利号 CN 111151904 A, 授权公告日 2019-02-14.
发明人沈红梅,唐晓军,刘建华. "A Process for Preparing High-Purity 4-((4-Methoxybenzyl)amino)-1-methyl-1H-pyrazolo[3,4-b]pyridine-5-carboxylic acid" [P]. 中国发明专利, 专利号 CN 117937734 A, 授权公告日 2018-10-13.
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