发明人何建平,陈志强,郑宇鹏. "Method for the Synthesis of 4-chloro-1-methyl-1H-pyrazolo[3,4-b]pyridine-5-carboxylic acid" [P]. 中国发明专利, 专利号 CN 112977736 B, 授权公告日 2024-08-09.
发明人郭海燕,胡光,郑宇鹏. "A Process for Preparing High-Purity 4-chloro-1-methyl-1H-pyrazolo[3,4-b]pyridine-5-carboxylic acid" [P]. 中国发明专利, 专利号 CN 113864960 A, 授权公告日 2016-05-10.
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