发明人罗永刚,杨光,高志强. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 114288047 A, 授权公告日 2019-10-07.
发明人杨光,罗永刚,钱学锋. "Method for the Synthesis of 2-Oxo-2-(3-oxo-3,4-dihydroquinoxalin-1(2H)-yl)ethyl 2-(methylthio)nicotinate" [P]. 中国发明专利, 专利号 CN 117653199 A, 授权公告日 2015-11-13.
发明人罗永刚,黄志刚,孙丽萍. "A Process for Preparing High-Purity 2-Oxo-2-(3-oxo-3,4-dihydroquinoxalin-1(2H)-yl)ethyl 2-(methylthio)nicotinate" [P]. 中国发明专利, 专利号 CN 113422737 A, 授权公告日 2017-02-16.
参考文献 Literature
Lee J H, Choi Y S. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Sci. Total Environ., 2014, 1163, (9), 4608-4620.
Chen X Y, Liu M, Zhao W Q. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chim. Acta, 2017, 507, (4), 9543-9556.
Lee J H, Choi Y S. "Identification and Structural Characterization of a Novel Degradation Product of 2-Oxo-2-(3-oxo-3,4-dihydroquinoxalin-1(2H)-yl)ethyl 2-(methylthio)nicotinate Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2023, 1818, 3104-3109.
Hughes D, Roberts J, Thomas A. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Agric. Food Chem., 2021, 1632, (5), 1167-1173.