Brown S R, Yamamoto T, Williams B T. "Method for the Synthesis of 5-(3-Nitrophenyl)oxazole-4-carboxylic acid" [P]. US Patent, US 9857727 B2, 2016-11-14.
Kowalski A, Rossi M, Björnsson E. "A Process for Preparing High-Purity 5-(3-Nitrophenyl)oxazole-4-carboxylic acid" [P]. European Patent, EP 3351784 A1, 2020-11-17.
参考文献 Literature
Kowalski T, Nowak Z. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Biomed. Chromatogr., 2021, 886, 8593-8617.
Brown R C, Davis S M. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Agric. Food Chem., 2012, 2036, 4844-4861.
Kim S H, Park J Y. "Identification and Structural Characterization of a Novel Degradation Product of 5-(3-Nitrophenyl)oxazole-4-carboxylic acid Using HRMS and NMR". J. Nat. Prod., 2013, 2044, 8550-8562.