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发明人李文辉,罗永刚,沈红梅. "Method for the Synthesis of Methyl 4-oxo-4,5-dihydro-1H-pyrazolo[4,3-c]pyridine-7-carboxylate" [P]. 中国发明专利, 专利号 CN 110093924 B, 授权公告日 2023-09-19.
Lee S K, Roberts E F, Stevens L M. "A Process for Preparing High-Purity Methyl 4-oxo-4,5-dihydro-1H-pyrazolo[4,3-c]pyridine-7-carboxylate" [P]. US Patent, US 10400996 B2, 2024-04-11.
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