Lee S K, Mueller T, Stevens L M. "一种的合成方法" [P]. US Patent, US 10081491 B2, 2019-05-06.
Schröder R, Hughes D C, Williams B T. "Method for the Synthesis of 5-Methylpyrazolo[1,5-a]pyrimidin-3-amine" [P]. US Patent, US 11551920 B2, 2015-10-17.
参考文献 Literature
Fischer P, Wagner E. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Rapid Commun. Mass Spectrom., 2011, 2422, (11), 5513-5534.
Yamamoto K, Tanaka H, Suzuki T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chim. Acta, 2020, 280, (6), 2881-2890.
Wang L, Li J, Zhang H. "Identification and Structural Characterization of a Novel Degradation Product of 5-Methylpyrazolo[1,5-a]pyrimidin-3-amine Using HRMS and NMR". Anal. Chem., 2016, 1491, (10), 2345-2348.