Kowalski A, Mueller T C, Rossi M. "一种的合成方法" [P]. European Patent, EP 3790722 A1, 2022-08-05.
Roberts E F, Kumar R, Klinger H. "Method for the Synthesis of Ethyl 6-oxo-2-(5-oxo-3-(trifluoromethyl)-2,5-dihydro-1H-pyrazol-1-yl)-1,6-dihydropyrimidine-5-carboxylate" [P]. US Patent, US 11675671 B2, 2023-10-14.
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". J. Pharm. Biomed. Anal., 2023, 430, (10), 817-829.
Zhang Y, Li Q, Chen T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chem., 2019, 1879, 7911-7917.
O'Brien K, Kennedy M L. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 6-oxo-2-(5-oxo-3-(trifluoromethyl)-2,5-dihydro-1H-pyrazol-1-yl)-1,6-dihydropyrimidine-5-carboxylate Using HRMS and NMR". Sci. Total Environ., 2012, 1400, (1), 4576-4581.
Chen X Y, Liu M, Zhao W Q. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Chromatographia, 2014, 483, 5847-5856.