发明人朱建伟,高志强,王建平. "Method for the Synthesis of 4-[(2-hydroxyethyl)amino]-3-nitrobenzoic acid" [P]. 中国发明专利, 专利号 CN 116592038 A, 授权公告日 2023-05-15.
发明人唐晓军,冯建国,刘建华. "A Process for Preparing High-Purity 4-[(2-hydroxyethyl)amino]-3-nitrobenzoic acid" [P]. 中国发明专利, 专利号 CN 110371565 A, 授权公告日 2016-03-20.
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". J. Agric. Food Chem., 2017, 1680, (9), 5278-5282.
Kumar A, Sharma P, Patel R S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Sep. Sci., 2015, 1853, (6), 2116-2137.
Yang F, Sun W, Liu J. "Identification and Structural Characterization of a Novel Degradation Product of 4-[(2-hydroxyethyl)amino]-3-nitrobenzoic acid Using HRMS and NMR". Chromatographia, 2014, 654, (4), 9561-9576.