O'Brien P Q, Schröder R, Williams B T. "Method for the Synthesis of 1-methyl-6-oxo-1,6-dihydropyrimidine-4-carboxylic acid" [P]. US Patent, US 9235666 B2, 2022-05-21.
参考文献 Literature
Yang F, Sun W, Liu J. "Development and Validation of an LC-MS/MS Method for the Determination of 1-methyl-6-oxo-1,6-dihydropyrimidine-4-carboxylic acid in Pharmaceutical Formulations". J. Chromatogr. A, 2022, 251, (1), 3761-3767.
Hughes D, Roberts J, Thomas A. "A Stability-Indicating HPLC Method for the Separation and Quantification of 1-methyl-6-oxo-1,6-dihydropyrimidine-4-carboxylic acid as an Impurity". Biomed. Chromatogr., 2020, 1217, 7994-8011.
O'Brien K, Kennedy M L. "Identification and Structural Characterization of a Novel Degradation Product of 1-methyl-6-oxo-1,6-dihydropyrimidine-4-carboxylic acid Using HRMS and NMR". J. Nat. Prod., 2022, 210, 8100-8116.
Chen X Y, Liu M, Zhao W Q. "Forced Degradation Studies to Evaluate 1-methyl-6-oxo-1,6-dihydropyrimidine-4-carboxylic acid Profile in Drug Substances According to ICH Guidelines". Chromatographia, 2018, 1341, (9), 7973-7986.