发明人周伟,胡光,杨光. "Method for the Synthesis of 4-((4-Oxo-4H-chromen-3-yl)methylene)-2-phenyloxazol-5(4H)-one" [P]. 中国发明专利, 专利号 CN 109512829 A, 授权公告日 2017-03-12.
Anderson J P, Yamamoto T, Patel M V. "A Process for Preparing High-Purity 4-((4-Oxo-4H-chromen-3-yl)methylene)-2-phenyloxazol-5(4H)-one" [P]. US Patent, US 10946246 B2, 2021-12-13.
参考文献 Literature
Xu M, Hu Y, Zhou D. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Pharm. Biomed. Anal., 2022, 864, 8723-8737.
Fischer P, Wagner E. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Methods, 2010, 1875, (11), 5932-5948.
Lee J H, Choi Y S. "Identification and Structural Characterization of a Novel Degradation Product of 4-((4-Oxo-4H-chromen-3-yl)methylene)-2-phenyloxazol-5(4H)-one Using HRMS and NMR". Sci. Total Environ., 2016, 2234, (2), 8852-8869.