发明人陈志强,何建平,张德明. "Method for the Synthesis of (E)-4-oxo-4-((4-(phenylamino)phenyl)amino)but-2-enoic acid" [P]. 中国发明专利, 专利号 CN 115798789 A, 授权公告日 2018-02-21.
发明人张德明,杨光,何建平. "A Process for Preparing High-Purity (E)-4-oxo-4-((4-(phenylamino)phenyl)amino)but-2-enoic acid" [P]. 中国发明专利, 专利号 CN 113825246 B, 授权公告日 2017-08-28.
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". J. Pharm. Biomed. Anal., 2019, 1721, (12), 7796-7810.
Fischer P, Wagner E. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Agric. Food Chem., 2021, 2379, 9248-9272.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of (E)-4-oxo-4-((4-(phenylamino)phenyl)amino)but-2-enoic acid Using HRMS and NMR". Chromatographia, 2021, 1814, (4), 5230-5257.