Thompson G K, Kumar R, Park J H. "Method for the Synthesis of 1H-Pyrazolo[3,4-c]pyridine-3-carboxylic acid tert-butyl ester" [P]. US Patent, US 11582245 B2, 2025-09-14.
发明人黄志刚,林芳,徐明华. "A Process for Preparing High-Purity 1H-Pyrazolo[3,4-c]pyridine-3-carboxylic acid tert-butyl ester" [P]. 中国发明专利, 专利号 CN 110571384 A, 授权公告日 2017-07-15.
参考文献 Literature
Brown R C, Davis S M. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Sep. Sci., 2014, 390, (8), 8034-8045.
Lee J H, Choi Y S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Nat. Prod., 2024, 714, (9), 3850-3867.
Zhang Y, Li Q, Chen T. "Identification and Structural Characterization of a Novel Degradation Product of 1H-Pyrazolo[3,4-c]pyridine-3-carboxylic acid tert-butyl ester Using HRMS and NMR". Anal. Chem., 2023, 162, (3), 373-400.