Klinger H, Brown S R, Patel M V. "Method for the Synthesis of tert-Butyl 6-bromo-2H-benzo[b][1,4]oxazine-4(3H)-carboxylate" [P]. US Patent, US 11779516 B2, 2025-04-02.
参考文献 Literature
Yang F, Sun W, Liu J. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Rapid Commun. Mass Spectrom., 2015, 1202, 1849-1868.
Lee J H, Choi Y S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Environ. Sci. Technol., 2017, 2426, (3), 8939-8955.
Kumar A, Sharma P, Patel R S. "Identification and Structural Characterization of a Novel Degradation Product of tert-Butyl 6-bromo-2H-benzo[b][1,4]oxazine-4(3H)-carboxylate Using HRMS and NMR". Anal. Chim. Acta, 2011, 436, (7), 939-950.
Zhang Y, Li Q, Chen T. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Chem., 2017, 1266, (7), 2804-2824.