发明人马晓峰,赵玉洁,唐晓军. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 109904191 A, 授权公告日 2016-09-19.
发明人郭海燕,冯建国,胡光. "Method for the Synthesis of 4-Methyl-3,4-dihydro-2H-benzo[b][1,4]oxazine-6-carbonitrile" [P]. 中国发明专利, 专利号 CN 113272608 A, 授权公告日 2016-09-10.
Schröder R, Nielsen H, Mueller T C. "A Process for Preparing High-Purity 4-Methyl-3,4-dihydro-2H-benzo[b][1,4]oxazine-6-carbonitrile" [P]. European Patent, EP 3401576 A1, 2024-06-12.
参考文献 Literature
Smith J A, Johnson M B. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chim. Acta, 2010, 1937, 1865-1885.
Mueller T, Schmidt R K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Food Chem., 2010, 1717, (11), 4564-4578.
Hughes D, Roberts J, Thomas A. "Identification and Structural Characterization of a Novel Degradation Product of 4-Methyl-3,4-dihydro-2H-benzo[b][1,4]oxazine-6-carbonitrile Using HRMS and NMR". J. Pharm. Biomed. Anal., 2018, 80, (8), 306-321.
Hughes D, Roberts J, Thomas A. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Talanta, 2014, 1444, (12), 6507-6530.