发明人张德明,刘建华,马晓峰. "Method for the Synthesis of 4-Chloro-1-ethyl-1H-pyrazolo[3,4-b]pyridin-5-amine" [P]. 中国发明专利, 专利号 CN 114862099 B, 授权公告日 2017-03-27.
发明人陈志强,朱建伟,林芳. "A Process for Preparing High-Purity 4-Chloro-1-ethyl-1H-pyrazolo[3,4-b]pyridin-5-amine" [P]. 中国发明专利, 专利号 CN 108042242 B, 授权公告日 2017-06-02.
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