Park J H, Patel M V, O'Brien P Q. "一种的合成方法" [P]. US Patent, US 11811757 B2, 2016-07-18.
Hughes D C, Williams B T, Davis P L. "Method for the Synthesis of 2-Ethyl-4-methylpyrimidine-5-carboxylic acid" [P]. US Patent, US 11029130 B2, 2018-05-23.
Johnson M A, Lee S K, Hughes D C. "A Process for Preparing High-Purity 2-Ethyl-4-methylpyrimidine-5-carboxylic acid" [P]. US Patent, US 10736602 B2, 2021-10-17.
参考文献 Literature
Garcia M, Rodriguez P. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Methods, 2023, 1768, (6), 26-30.
Chen X Y, Liu M, Zhao W Q. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chem., 2010, 685, 1114-1127.
Zhou X P, Huang L, Wu G. "Identification and Structural Characterization of a Novel Degradation Product of 2-Ethyl-4-methylpyrimidine-5-carboxylic acid Using HRMS and NMR". J. Sep. Sci., 2025, 1298, (9), 5492-5518.