Anderson J P, Thompson G K, Klinger H. "一种的合成方法" [P]. US Patent, US 9947548 B2, 2025-09-10.
发明人孙丽萍,马晓峰,刘建华. "Method for the Synthesis of 4-(Methylamino)-2-(methylthio)-5-pyrimidinecarboxylic acid" [P]. 中国发明专利, 专利号 CN 109759776 B, 授权公告日 2017-06-17.
发明人孙丽萍,胡光,刘建华. "A Process for Preparing High-Purity 4-(Methylamino)-2-(methylthio)-5-pyrimidinecarboxylic acid" [P]. 中国发明专利, 专利号 CN 116889628 A, 授权公告日 2017-09-01.
参考文献 Literature
O'Brien K, Kennedy M L. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Molecules, 2012, 2037, 4938-4961.
Zhang Y, Li Q, Chen T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Methods, 2016, 1838, (3), 135-141.
O'Brien K, Kennedy M L. "Identification and Structural Characterization of a Novel Degradation Product of 4-(Methylamino)-2-(methylthio)-5-pyrimidinecarboxylic acid Using HRMS and NMR". J. Agric. Food Chem., 2013, 144, (4), 1658-1687.