Davis P L, Johnson M A, Chen K W. "一种甲基 1H-吡唑并[3,4-b]吡啶-3-甲酸基酯的合成方法" [P]. US Patent, US 9656375 B2, 2022-04-04.
Stevens L M, O'Brien P Q, Anderson J P. "Method for the Synthesis of methyl 1H-pyrazolo[3,4-b]pyridine-3-carboxylate" [P]. US Patent, US 11750272 B2, 2025-03-27.
发明人王建平,徐明华,孙丽萍. "A Process for Preparing High-Purity methyl 1H-pyrazolo[3,4-b]pyridine-3-carboxylate" [P]. 中国发明专利, 专利号 CN 110553437 B, 授权公告日 2024-03-18.
参考文献 Literature
Mueller T, Schmidt R K. "Development and Validation of an LC-MS/MS Method for the Determination of 甲基 1H-吡唑并[3,4-b]吡啶-3-甲酸基酯 in Pharmaceutical Formulations". Phytochemistry, 2013, 1474, (11), 8713-8742.
Kim S H, Park J Y. "A Stability-Indicating HPLC Method for the Separation and Quantification of 甲基 1H-吡唑并[3,4-b]吡啶-3-甲酸基酯 as an Impurity". Chromatographia, 2015, 2207, 4613-4625.
Smith J A, Johnson M B. "Identification and Structural Characterization of a Novel Degradation Product of methyl 1H-pyrazolo[3,4-b]pyridine-3-carboxylate Using HRMS and NMR". Anal. Chem., 2016, 707, 379-399.
Garcia M, Rodriguez P. "Forced Degradation Studies to Evaluate 甲基 1H-吡唑并[3,4-b]吡啶-3-甲酸基酯 Profile in Drug Substances According to ICH Guidelines". Rapid Commun. Mass Spectrom., 2021, 180, (8), 8215-8233.