Brown S R, Hughes D C, Johnson M A. "Method for the Synthesis of 5-methyl-1,3-oxazole-2-carboxylic acid" [P]. US Patent, US 10163653 B2, 2017-03-24.
发明人徐明华,冯建国,郑宇鹏. "A Process for Preparing High-Purity 5-methyl-1,3-oxazole-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 110248330 B, 授权公告日 2016-05-17.
参考文献 Literature
Wang L, Li J, Zhang H. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Chromatogr. A, 2016, 257, (6), 7427-7436.
Martinez C, Lopez D R. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chim. Acta, 2011, 2315, (5), 8043-8046.
Zhou X P, Huang L, Wu G. "Identification and Structural Characterization of a Novel Degradation Product of 5-methyl-1,3-oxazole-2-carboxylic acid Using HRMS and NMR". Molecules, 2011, 1531, (11), 6646-6651.