发明人郭海燕,郑宇鹏,冯建国. "Method for the Synthesis of 4-((4-(Methoxycarbonyl)phenyl)amino)-4-oxobutanoic acid" [P]. 中国发明专利, 专利号 CN 112905835 B, 授权公告日 2016-12-25.
发明人李文辉,王建平,唐晓军. "A Process for Preparing High-Purity 4-((4-(Methoxycarbonyl)phenyl)amino)-4-oxobutanoic acid" [P]. 中国发明专利, 专利号 CN 116795804 B, 授权公告日 2023-01-22.
参考文献 Literature
Fischer P, Wagner E. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Environ. Sci. Technol., 2022, 916, (2), 4555-4559.
Chen X Y, Liu M, Zhao W Q. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Talanta, 2014, 1842, 4291-4304.
Yang F, Sun W, Liu J. "Identification and Structural Characterization of a Novel Degradation Product of 4-((4-(Methoxycarbonyl)phenyl)amino)-4-oxobutanoic acid Using HRMS and NMR". J. Agric. Food Chem., 2017, 2374, (12), 8264-8276.