Johnson M A, Lee S K, Mueller T. "一种的合成方法" [P]. US Patent, US 9172366 B2, 2018-04-27.
Fischer A B, Thompson G K, Mueller T. "Method for the Synthesis of 1-(3,5-Dimethylphenyl)-1H-pyrazolo[3,4-d]pyrimidine-4-thiol" [P]. US Patent, US 9451014 B2, 2023-10-18.
参考文献 Literature
Yamamoto K, Tanaka H, Suzuki T. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Methods, 2024, 365, (8), 2391-2398.
Chen X Y, Liu M, Zhao W Q. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Nat. Prod., 2013, 1157, 3821-3843.
Yang F, Sun W, Liu J. "Identification and Structural Characterization of a Novel Degradation Product of 1-(3,5-Dimethylphenyl)-1H-pyrazolo[3,4-d]pyrimidine-4-thiol Using HRMS and NMR". Chemosphere, 2024, 1998, (8), 7425-7435.
Kim S H, Park J Y. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Rapid Commun. Mass Spectrom., 2021, 1396, (4), 9705-9712.