Johansson L, Kowalski A, Jørgensen K. "一种的合成方法" [P]. European Patent, EP 3386924 A1, 2017-07-13.
发明人李文辉,马晓峰,杨光. "Method for the Synthesis of 4-Chloro-1-(p-tolyl)-1H-pyrazolo[3,4-d]pyrimidine" [P]. 中国发明专利, 专利号 CN 109701890 A, 授权公告日 2018-03-16.
参考文献 Literature
Jensen P, Larsen A M, Olsen K. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Environ. Sci. Technol., 2010, 2022, 4329-4333.
Lee J H, Choi Y S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Chromatogr. A, 2023, 360, (9), 6675-6704.
Zhang Y, Li Q, Chen T. "Identification and Structural Characterization of a Novel Degradation Product of 4-Chloro-1-(p-tolyl)-1H-pyrazolo[3,4-d]pyrimidine Using HRMS and NMR". Sci. Total Environ., 2023, 1359, 7875-7878.
Yang F, Sun W, Liu J. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Phytochemistry, 2010, 1507, 4928-4949.