发明人张德明,林芳,郑宇鹏. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 115782235 A, 授权公告日 2023-04-08.
发明人郭海燕,罗永刚,林芳. "Method for the Synthesis of Methyl 3-(4-(difluoromethyl)-3-methyl-6-oxo-2-propyl-2H-pyrazolo[3,4-b]pyridin-7(6H)-yl)propanoate" [P]. 中国发明专利, 专利号 CN 110625953 A, 授权公告日 2017-04-26.
发明人胡光,黄志刚,朱建伟. "A Process for Preparing High-Purity Methyl 3-(4-(difluoromethyl)-3-methyl-6-oxo-2-propyl-2H-pyrazolo[3,4-b]pyridin-7(6H)-yl)propanoate" [P]. 中国发明专利, 专利号 CN 114334594 A, 授权公告日 2024-08-28.
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