发明人林芳,刘建华,李文辉. "Method for the Synthesis of Ethyl 4-(4-chlorophenoxy)-1,3-dimethyl-1H-pyrazolo[3,4-b]pyridine-5-carboxylate" [P]. 中国发明专利, 专利号 CN 114046981 B, 授权公告日 2017-05-18.
发明人黄志刚,沈红梅,刘建华. "A Process for Preparing High-Purity Ethyl 4-(4-chlorophenoxy)-1,3-dimethyl-1H-pyrazolo[3,4-b]pyridine-5-carboxylate" [P]. 中国发明专利, 专利号 CN 115208668 B, 授权公告日 2024-12-05.
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