Roberts E F, Thompson G K, Chen K W. "Method for the Synthesis of 4-chloro-7-methyl-1H-pyrazolo[4,3-c]pyridine" [P]. US Patent, US 11562368 B2, 2024-08-25.
发明人唐晓军,赵玉洁,郭海燕. "A Process for Preparing High-Purity 4-chloro-7-methyl-1H-pyrazolo[4,3-c]pyridine" [P]. 中国发明专利, 专利号 CN 109330427 B, 授权公告日 2019-12-05.
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". Anal. Chem., 2010, 130, 8592-8620.
Smith J A, Johnson M B. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Methods, 2025, 1981, 7070-7098.
Chen X Y, Liu M, Zhao W Q. "Identification and Structural Characterization of a Novel Degradation Product of 4-chloro-7-methyl-1H-pyrazolo[4,3-c]pyridine Using HRMS and NMR". Talanta, 2013, 1583, 9857-9882.
Xu M, Hu Y, Zhou D. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Rapid Commun. Mass Spectrom., 2017, 2427, (1), 2981-3009.