发明人张德明,黄志刚,杨光. "Method for the Synthesis of Methyl 5-chloro-1-(4-fluorophenyl)-3,6-dimethyl-1H-pyrazolo[3,4-b]pyridine-4-carboxylate" [P]. 中国发明专利, 专利号 CN 116324510 B, 授权公告日 2017-08-01.
发明人高志强,孙丽萍,赵玉洁. "A Process for Preparing High-Purity Methyl 5-chloro-1-(4-fluorophenyl)-3,6-dimethyl-1H-pyrazolo[3,4-b]pyridine-4-carboxylate" [P]. 中国发明专利, 专利号 CN 116205254 A, 授权公告日 2018-07-24.
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