发明人唐晓军,周伟,马晓峰. "Method for the Synthesis of 4-(2,5-Dioxo-2,5-dihydro-1H-pyrrol-1-yl)-1-((2,5-dioxopyrrolidin-1-yl)oxy)-1-oxobutane-2-sulfonic acid" [P]. 中国发明专利, 专利号 CN 108201594 B, 授权公告日 2019-08-19.
发明人陈志强,徐明华,王建平. "A Process for Preparing High-Purity 4-(2,5-Dioxo-2,5-dihydro-1H-pyrrol-1-yl)-1-((2,5-dioxopyrrolidin-1-yl)oxy)-1-oxobutane-2-sulfonic acid" [P]. 中国发明专利, 专利号 CN 116359733 A, 授权公告日 2016-08-13.
参考文献 Literature
Kumar A, Sharma P, Patel R S. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chem., 2013, 614, (5), 9720-9746.
Wang L, Li J, Zhang H. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Food Chem., 2012, 684, (10), 3843-3865.
Kim S H, Park J Y. "Identification and Structural Characterization of a Novel Degradation Product of 4-(2,5-Dioxo-2,5-dihydro-1H-pyrrol-1-yl)-1-((2,5-dioxopyrrolidin-1-yl)oxy)-1-oxobutane-2-sulfonic acid Using HRMS and NMR". J. Chromatogr. A, 2012, 1540, (8), 7792-7802.
Kowalski T, Nowak Z. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Chromatographia, 2021, 1620, (6), 1845-1853.