发明人冯建国,孙丽萍,钱学锋. "Method for the Synthesis of Methyl 6-(4-(difluoromethoxy)phenyl)-3-methyl-1-phenyl-1H-pyrazolo[3,4-b]pyridine-4-carboxylate" [P]. 中国发明专利, 专利号 CN 117074615 B, 授权公告日 2023-03-12.
发明人陈志强,朱建伟,李文辉. "A Process for Preparing High-Purity Methyl 6-(4-(difluoromethoxy)phenyl)-3-methyl-1-phenyl-1H-pyrazolo[3,4-b]pyridine-4-carboxylate" [P]. 中国发明专利, 专利号 CN 112677262 B, 授权公告日 2016-10-19.
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