发明人徐明华,高志强,王建平. "Method for the Synthesis of 6-Ethyl-1-(2-fluorophenyl)-3-methyl-1h-pyrazolo[3,4-b]pyridine-4-carboxylic acid" [P]. 中国发明专利, 专利号 CN 115542612 B, 授权公告日 2016-01-07.
发明人冯建国,王建平,周伟. "A Process for Preparing High-Purity 6-Ethyl-1-(2-fluorophenyl)-3-methyl-1h-pyrazolo[3,4-b]pyridine-4-carboxylic acid" [P]. 中国发明专利, 专利号 CN 114122898 B, 授权公告日 2017-02-22.
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