Klinger H, Lee S K, Roberts E F. "一种的合成方法" [P]. US Patent, US 9221628 B2, 2020-01-04.
Schröder R, Björnsson E, Kowalski A. "Method for the Synthesis of Ethyl 2-(6-chloro-2-oxo-4-phenyl-2,4-dihydro-1H-benzo[d][1,3]oxazin-1-yl)acetate" [P]. European Patent, EP 3417186 A1, 2021-09-15.
发明人冯建国,罗永刚,何建平. "A Process for Preparing High-Purity Ethyl 2-(6-chloro-2-oxo-4-phenyl-2,4-dihydro-1H-benzo[d][1,3]oxazin-1-yl)acetate" [P]. 中国发明专利, 专利号 CN 110382399 B, 授权公告日 2020-11-28.
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". J. Chromatogr. A, 2021, 234, 653-666.
Hughes D, Roberts J, Thomas A. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Biomed. Chromatogr., 2024, 213, 3639-3666.
Garcia M, Rodriguez P. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 2-(6-chloro-2-oxo-4-phenyl-2,4-dihydro-1H-benzo[d][1,3]oxazin-1-yl)acetate Using HRMS and NMR". J. Nat. Prod., 2010, 829, 1323-1332.