发明人孙丽萍,张德明,胡光. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 116142772 A, 授权公告日 2016-04-27.
发明人刘建华,周伟,杨光. "Method for the Synthesis of 1-Methyl-N-(pyridin-2-ylmethyl)-1h-pyrazolo[3,4-d]pyrimidin-4-amine" [P]. 中国发明专利, 专利号 CN 110181374 A, 授权公告日 2018-08-15.
发明人林芳,陈志强,赵玉洁. "A Process for Preparing High-Purity 1-Methyl-N-(pyridin-2-ylmethyl)-1h-pyrazolo[3,4-d]pyrimidin-4-amine" [P]. 中国发明专利, 专利号 CN 117524734 A, 授权公告日 2016-06-03.
参考文献 Literature
Lee J H, Choi Y S. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Food Chem., 2021, 1521, 7060-7067.
Fischer P, Wagner E. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Biomed. Chromatogr., 2018, 1502, 9348-9373.
Kumar A, Sharma P, Patel R S. "Identification and Structural Characterization of a Novel Degradation Product of 1-Methyl-N-(pyridin-2-ylmethyl)-1h-pyrazolo[3,4-d]pyrimidin-4-amine Using HRMS and NMR". J. Chromatogr. A, 2023, 894, 5870-5894.
Brown R C, Davis S M. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Pharm. Biomed. Anal., 2016, 2405, (2), 1594-1609.