Stevens L M, Chen K W, Mueller T. "一种的合成方法" [P]. US Patent, US 10300033 B2, 2022-04-17.
发明人高志强,孙丽萍,杨光. "Method for the Synthesis of N-Methyl-1-[(3-methylphenyl)methyl]-1H-pyrazolo[3,4-d]pyrimidin-4-amine" [P]. 中国发明专利, 专利号 CN 114675044 A, 授权公告日 2017-09-18.
Johnson M A, Park J H, Brown S R. "A Process for Preparing High-Purity N-Methyl-1-[(3-methylphenyl)methyl]-1H-pyrazolo[3,4-d]pyrimidin-4-amine" [P]. US Patent, US 10318338 B2, 2019-03-04.
参考文献 Literature
Kumar A, Sharma P, Patel R S. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Talanta, 2014, 976, 1516-1530.
Martinez C, Lopez D R. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Biomed. Chromatogr., 2018, 368, (2), 170-193.
Lee J H, Choi Y S. "Identification and Structural Characterization of a Novel Degradation Product of N-Methyl-1-[(3-methylphenyl)methyl]-1H-pyrazolo[3,4-d]pyrimidin-4-amine Using HRMS and NMR". Phytochemistry, 2016, 2291, 6244-6273.