Anderson J P, Johnson M A, Williams B T. "Method for the Synthesis of 2-Chlorooxazole-4-carboxamide" [P]. US Patent, US 10228789 B2, 2021-10-14.
Johnson M A, Kumar R, Lee S K. "A Process for Preparing High-Purity 2-Chlorooxazole-4-carboxamide" [P]. US Patent, US 9657063 B2, 2017-01-25.
参考文献 Literature
Lee J H, Choi Y S. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chem., 2022, 707, 3631-3659.
Mueller T, Schmidt R K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Pharm. Biomed. Anal., 2016, 1486, (1), 8013-8022.
Zhou X P, Huang L, Wu G. "Identification and Structural Characterization of a Novel Degradation Product of 2-Chlorooxazole-4-carboxamide Using HRMS and NMR". Anal. Methods, 2019, 2005, 5436-5457.