Kumar R, Schröder R, Johnson M A. "一种的合成方法" [P]. US Patent, US 11007466 B2, 2021-02-12.
发明人何建平,胡光,周伟. "Method for the Synthesis of 2-Methyl-4H-pyrido[3,2-e][1,3]oxazin-4-one" [P]. 中国发明专利, 专利号 CN 116049600 B, 授权公告日 2024-10-24.
参考文献 Literature
Xu M, Hu Y, Zhou D. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Food Chem., 2018, 1955, (12), 2256-2276.
Kim S H, Park J Y. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Chromatogr. A, 2019, 903, 10000-10013.
O'Brien K, Kennedy M L. "Identification and Structural Characterization of a Novel Degradation Product of 2-Methyl-4H-pyrido[3,2-e][1,3]oxazin-4-one Using HRMS and NMR". Chemosphere, 2014, 1094, (6), 8420-8448.
Mueller T, Schmidt R K. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Chromatographia, 2023, 276, (2), 2245-2260.