Lefèvre J P, Schröder R, Sørensen M. "一种的合成方法" [P]. European Patent, EP 3427621 A1, 2017-09-07.
发明人韩伟,陈志强,赵玉洁. "Method for the Synthesis of (E)-2-Amino-5-(2-oxo-2-phenylethylidene)oxazol-4(5H)-one" [P]. 中国发明专利, 专利号 CN 117589177 A, 授权公告日 2015-08-20.
发明人李文辉,郑宇鹏,王建平. "A Process for Preparing High-Purity (E)-2-Amino-5-(2-oxo-2-phenylethylidene)oxazol-4(5H)-one" [P]. 中国发明专利, 专利号 CN 113804269 B, 授权公告日 2015-12-22.
参考文献 Literature
Brown R C, Davis S M. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Nat. Prod., 2018, 619, 1189-1210.
Smith J A, Johnson M B. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Biomed. Chromatogr., 2022, 210, (6), 7148-7166.
Kumar A, Sharma P, Patel R S. "Identification and Structural Characterization of a Novel Degradation Product of (E)-2-Amino-5-(2-oxo-2-phenylethylidene)oxazol-4(5H)-one Using HRMS and NMR". Chromatographia, 2014, 2239, 4642-4662.