发明人郑宇鹏,林芳,李文辉. "Method for the Synthesis of 5-(difluoromethyl)-3-(trifluoromethyl)-1,2-oxazole-4-carboxylic acid" [P]. 中国发明专利, 专利号 CN 110450123 A, 授权公告日 2016-07-18.
参考文献 Literature
Zhou X P, Huang L, Wu G. "Development and Validation of an LC-MS/MS Method for the Determination of 5-(difluoromethyl)-3-(trifluoromethyl)-1,2-oxazole-4-carboxylic acid in Pharmaceutical Formulations". Anal. Methods, 2024, 974, 6994-7018.
Zhou X P, Huang L, Wu G. "A Stability-Indicating HPLC Method for the Separation and Quantification of 5-(difluoromethyl)-3-(trifluoromethyl)-1,2-oxazole-4-carboxylic acid as an Impurity". J. Pharm. Biomed. Anal., 2011, 1144, 1756-1786.
Yamamoto K, Tanaka H, Suzuki T. "Identification and Structural Characterization of a Novel Degradation Product of 5-(difluoromethyl)-3-(trifluoromethyl)-1,2-oxazole-4-carboxylic acid Using HRMS and NMR". Phytochemistry, 2010, 2153, (10), 4665-4690.
Kowalski T, Nowak Z. "Forced Degradation Studies to Evaluate 5-(difluoromethyl)-3-(trifluoromethyl)-1,2-oxazole-4-carboxylic acid Profile in Drug Substances According to ICH Guidelines". Rapid Commun. Mass Spectrom., 2018, 1993, (6), 1540-1547.