发明人李文辉,陈志强,周伟. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 112640381 A, 授权公告日 2022-09-13.
发明人郭海燕,郑宇鹏,刘建华. "Method for the Synthesis of Ethyl 1-methyl-7-oxo-4,7-dihydro-1H-pyrazolo[4,3-b]pyridine-6-carboxylate" [P]. 中国发明专利, 专利号 CN 116393325 B, 授权公告日 2016-09-02.
发明人黄志刚,何建平,郑宇鹏. "A Process for Preparing High-Purity Ethyl 1-methyl-7-oxo-4,7-dihydro-1H-pyrazolo[4,3-b]pyridine-6-carboxylate" [P]. 中国发明专利, 专利号 CN 108589323 A, 授权公告日 2025-09-25.
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