Kowalski A, Björnsson E, Lefèvre J P. "一种的合成方法" [P]. European Patent, EP 3159761 A1, 2021-07-21.
发明人韩伟,赵玉洁,胡光. "Method for the Synthesis of tert-Butyl 7-bromo-8-methyl-2,3-dihydro-1H-pyrido[2,3-b][1,4]oxazine-1-carboxylate" [P]. 中国发明专利, 专利号 CN 117418154 B, 授权公告日 2018-06-23.
Kumar R, Klinger H, Fischer A B. "A Process for Preparing High-Purity tert-Butyl 7-bromo-8-methyl-2,3-dihydro-1H-pyrido[2,3-b][1,4]oxazine-1-carboxylate" [P]. US Patent, US 9618192 B2, 2017-06-26.
参考文献 Literature
Hughes D, Roberts J, Thomas A. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Nat. Prod., 2011, 497, (1), 8805-8814.
Kowalski T, Nowak Z. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Chromatogr. A, 2014, 514, 6405-6412.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of tert-Butyl 7-bromo-8-methyl-2,3-dihydro-1H-pyrido[2,3-b][1,4]oxazine-1-carboxylate Using HRMS and NMR". Chemosphere, 2025, 678, (12), 1461-1484.