Klinger H, Davis P L, Kumar R. "一种的合成方法" [P]. US Patent, US 10653174 B2, 2016-09-08.
Kowalski A, Nowak P, Rossi M. "Method for the Synthesis of 5-Methyl-2-(methylthio)-6-oxo-3,6-dihydropyrimidine-4-carboxylic acid" [P]. European Patent, EP 3956894 A1, 2020-11-05.
发明人马晓峰,陈志强,高志强. "A Process for Preparing High-Purity 5-Methyl-2-(methylthio)-6-oxo-3,6-dihydropyrimidine-4-carboxylic acid" [P]. 中国发明专利, 专利号 CN 110675459 B, 授权公告日 2023-03-13.
参考文献 Literature
Chen X Y, Liu M, Zhao W Q. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Nat. Prod., 2018, 2329, (12), 6463-6490.
Chen X Y, Liu M, Zhao W Q. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Environ. Sci. Technol., 2016, 2208, (7), 4150-4178.
Martinez C, Lopez D R. "Identification and Structural Characterization of a Novel Degradation Product of 5-Methyl-2-(methylthio)-6-oxo-3,6-dihydropyrimidine-4-carboxylic acid Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2011, 1691, (8), 4741-4762.