Chen K W, Schröder R, Brown S R. "一种的合成方法" [P]. US Patent, US 9923565 B2, 2025-08-07.
发明人朱建伟,高志强,郭海燕. "Method for the Synthesis of 2-(Dimethylamino)-6-oxo-4-(phenylamino)-6H-1,3-oxazine-5-carbonitrile" [P]. 中国发明专利, 专利号 CN 114245247 A, 授权公告日 2015-11-18.
Mueller T, Stevens L M, Lee S K. "A Process for Preparing High-Purity 2-(Dimethylamino)-6-oxo-4-(phenylamino)-6H-1,3-oxazine-5-carbonitrile" [P]. US Patent, US 9995770 B2, 2024-08-14.
参考文献 Literature
Martinez C, Lopez D R. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Chromatogr. A, 2022, 1942, (12), 7020-7024.
Chen X Y, Liu M, Zhao W Q. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Environ. Sci. Technol., 2013, 2304, (6), 5246-5276.
Kowalski T, Nowak Z. "Identification and Structural Characterization of a Novel Degradation Product of 2-(Dimethylamino)-6-oxo-4-(phenylamino)-6H-1,3-oxazine-5-carbonitrile Using HRMS and NMR". J. Pharm. Biomed. Anal., 2015, 1436, 3681-3703.