Schröder R, Lee S K, Klinger H. "Method for the Synthesis of 3-(4-(4-Methylbenzyl)-2,3-dioxo-3,4-dihydroquinoxalin-1(2H)-yl)propanoic acid" [P]. US Patent, US 11644544 B2, 2019-12-18.
发明人高志强,罗永刚,郑宇鹏. "A Process for Preparing High-Purity 3-(4-(4-Methylbenzyl)-2,3-dioxo-3,4-dihydroquinoxalin-1(2H)-yl)propanoic acid" [P]. 中国发明专利, 专利号 CN 110484274 A, 授权公告日 2018-04-09.
参考文献 Literature
Zhou X P, Huang L, Wu G. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Methods, 2019, 642, 1010-1015.
Kim S H, Park J Y. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Sci. Total Environ., 2013, 371, 2343-2368.
Mueller T, Schmidt R K. "Identification and Structural Characterization of a Novel Degradation Product of 3-(4-(4-Methylbenzyl)-2,3-dioxo-3,4-dihydroquinoxalin-1(2H)-yl)propanoic acid Using HRMS and NMR". Talanta, 2014, 2423, 9175-9193.
Wang L, Li J, Zhang H. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Chromatogr. A, 2020, 1506, (5), 6914-6929.