Johnson M A, Davis P L, Kumar R. "一种的合成方法" [P]. US Patent, US 9273890 B2, 2024-01-03.
发明人赵玉洁,朱建伟,徐明华. "Method for the Synthesis of Methyl 5-oxo-3,5-dihydro-2H-oxazolo[2,3-b]quinazoline-8-carboxylate" [P]. 中国发明专利, 专利号 CN 110886686 B, 授权公告日 2024-03-05.
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". Sci. Total Environ., 2014, 1352, (8), 8494-8522.
Kowalski T, Nowak Z. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Food Chem., 2014, 486, 450-458.
Brown R C, Davis S M. "Identification and Structural Characterization of a Novel Degradation Product of Methyl 5-oxo-3,5-dihydro-2H-oxazolo[2,3-b]quinazoline-8-carboxylate Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2017, 1083, 1036-1062.
Zhang Y, Li Q, Chen T. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Pharm. Biomed. Anal., 2014, 809, 4597-4620.