O'Brien P Q, Kumar R, Lee S K. "一种的合成方法" [P]. US Patent, US 10337899 B2, 2020-06-11.
Johansson L, Martínez F, Mueller T C. "Method for the Synthesis of 4-(4-Nitro-1H-pyrazol-1-yl)pyrimidin-2-amine" [P]. European Patent, EP 3851566 A1, 2015-07-02.
Kumar R, Hughes D C, Anderson J P. "A Process for Preparing High-Purity 4-(4-Nitro-1H-pyrazol-1-yl)pyrimidin-2-amine" [P]. US Patent, US 11897497 B2, 2025-09-22.
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". Food Chem., 2013, 452, 9395-9405.
Zhang Y, Li Q, Chen T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chromatographia, 2022, 1850, 1929-1945.
Hughes D, Roberts J, Thomas A. "Identification and Structural Characterization of a Novel Degradation Product of 4-(4-Nitro-1H-pyrazol-1-yl)pyrimidin-2-amine Using HRMS and NMR". J. Sep. Sci., 2018, 2401, (10), 6152-6168.