Davis P L, Lee S K, Thompson G K. "Method for the Synthesis of Ethyl 5-fluoro-1H-pyrazolo[3,4-b]pyridine-3-carboxylate" [P]. US Patent, US 11465472 B2, 2023-04-27.
发明人赵玉洁,孙丽萍,郑宇鹏. "A Process for Preparing High-Purity Ethyl 5-fluoro-1H-pyrazolo[3,4-b]pyridine-3-carboxylate" [P]. 中国发明专利, 专利号 CN 114990745 B, 授权公告日 2019-02-17.
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