Anderson J P, Hughes D C, Chen K W. "一种的合成方法" [P]. US Patent, US 9257554 B2, 2018-12-06.
Schröder R, Klinger H, Stevens L M. "Method for the Synthesis of 7-Methyl-4-oxo-2-(phenylthio)-4H-pyrido[1,2-a]pyrimidine-3-carbaldehyde" [P]. US Patent, US 11709423 B2, 2022-06-13.
Schröder R, Rossi M, Martínez F. "A Process for Preparing High-Purity 7-Methyl-4-oxo-2-(phenylthio)-4H-pyrido[1,2-a]pyrimidine-3-carbaldehyde" [P]. European Patent, EP 3723799 A1, 2018-07-01.
参考文献 Literature
Zhang Y, Li Q, Chen T. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Agric. Food Chem., 2025, 1537, (2), 3457-3483.
O'Brien K, Kennedy M L. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Environ. Sci. Technol., 2012, 180, (5), 6130-6146.
Kowalski T, Nowak Z. "Identification and Structural Characterization of a Novel Degradation Product of 7-Methyl-4-oxo-2-(phenylthio)-4H-pyrido[1,2-a]pyrimidine-3-carbaldehyde Using HRMS and NMR". Anal. Chem., 2018, 224, 806-823.