发明人罗永刚,林芳,王建平. "Method for the Synthesis of 8-Methyl-3-oxo-3,4-dihydro-2H-benzo[b][1,4]oxazine-6-carbaldehyde" [P]. 中国发明专利, 专利号 CN 115175999 A, 授权公告日 2021-07-28.
O'Brien P Q, Stevens L M, Schröder R. "A Process for Preparing High-Purity 8-Methyl-3-oxo-3,4-dihydro-2H-benzo[b][1,4]oxazine-6-carbaldehyde" [P]. US Patent, US 11811306 B2, 2024-12-16.
参考文献 Literature
Kim S H, Park J Y. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chromatographia, 2024, 1566, (10), 7965-7987.
Smith J A, Johnson M B. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Sci. Total Environ., 2019, 2172, (12), 2335-2343.
O'Brien K, Kennedy M L. "Identification and Structural Characterization of a Novel Degradation Product of 8-Methyl-3-oxo-3,4-dihydro-2H-benzo[b][1,4]oxazine-6-carbaldehyde Using HRMS and NMR". Phytochemistry, 2023, 552, (1), 9351-9366.
Zhang Y, Li Q, Chen T. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Chromatogr. A, 2019, 2167, (5), 4727-4746.