Johnson M A, Chen K W, Yamamoto T. "一种的合成方法" [P]. US Patent, US 10281886 B2, 2021-05-18.
发明人郭海燕,林芳,赵玉洁. "Method for the Synthesis of 1-(4-Methoxyphenyl)-1h-pyrazolo[3,4-d]pyrimidin-4-amine" [P]. 中国发明专利, 专利号 CN 111152387 A, 授权公告日 2017-12-25.
参考文献 Literature
Wang L, Li J, Zhang H. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Biomed. Chromatogr., 2023, 1278, (6), 8857-8880.
Yang F, Sun W, Liu J. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Phytochemistry, 2012, 1433, (5), 1709-1718.
Wang L, Li J, Zhang H. "Identification and Structural Characterization of a Novel Degradation Product of 1-(4-Methoxyphenyl)-1h-pyrazolo[3,4-d]pyrimidin-4-amine Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2018, 376, (4), 8947-8968.