发明人刘建华,李文辉,何建平. "Method for the Synthesis of 1-(2-Fluorophenyl)-6-methyl-1H-pyrazolo[3,4-b]pyridine-4-carboxylic acid" [P]. 中国发明专利, 专利号 CN 111400116 B, 授权公告日 2017-01-25.
发明人赵玉洁,马晓峰,冯建国. "A Process for Preparing High-Purity 1-(2-Fluorophenyl)-6-methyl-1H-pyrazolo[3,4-b]pyridine-4-carboxylic acid" [P]. 中国发明专利, 专利号 CN 113667083 B, 授权公告日 2016-10-27.
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