Lee S K, Kumar R, Park J H. "Method for the Synthesis of 2-(5-Ethyl-4-methyl-2-(methylthio)-6-oxopyrimidin-1(6H)-yl)acetonitrile" [P]. US Patent, US 9248917 B2, 2017-07-14.
发明人郑宇鹏,徐明华,赵玉洁. "A Process for Preparing High-Purity 2-(5-Ethyl-4-methyl-2-(methylthio)-6-oxopyrimidin-1(6H)-yl)acetonitrile" [P]. 中国发明专利, 专利号 CN 116477596 A, 授权公告日 2020-11-19.
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., 2010, 1089, (10), 9127-9142.
Kumar A, Sharma P, Patel R S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Talanta, 2014, 1587, 6020-6042.
Lee J H, Choi Y S. "Identification and Structural Characterization of a Novel Degradation Product of 2-(5-Ethyl-4-methyl-2-(methylthio)-6-oxopyrimidin-1(6H)-yl)acetonitrile Using HRMS and NMR". Molecules, 2017, 1682, 3990-4005.
Martinez C, Lopez D R. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Sep. Sci., 2016, 496, 7743-7755.