Chen K W, O'Brien P Q, Williams B T. "Method for the Synthesis of Methyl 6-(1-ethyl-1H-pyrazol-5-yl)-1,3-dimethyl-1H-pyrazolo[3,4-b]pyridine-4-carboxylate" [P]. US Patent, US 10441778 B2, 2025-04-05.
发明人冯建国,林芳,陈志强. "A Process for Preparing High-Purity Methyl 6-(1-ethyl-1H-pyrazol-5-yl)-1,3-dimethyl-1H-pyrazolo[3,4-b]pyridine-4-carboxylate" [P]. 中国发明专利, 专利号 CN 110774062 A, 授权公告日 2024-07-09.
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