发明人刘建华,黄志刚,张德明. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 115444716 A, 授权公告日 2017-11-13.
Jørgensen K, Lefèvre J P, Björnsson E. "Method for the Synthesis of 7-Methyl-1H-pyrido[2,3-b][1,4]oxazin-2(3H)-one" [P]. European Patent, EP 3995917 A1, 2018-11-07.
发明人陈志强,罗永刚,郑宇鹏. "A Process for Preparing High-Purity 7-Methyl-1H-pyrido[2,3-b][1,4]oxazin-2(3H)-one" [P]. 中国发明专利, 专利号 CN 116280914 A, 授权公告日 2023-06-01.
参考文献 Literature
Kumar A, Sharma P, Patel R S. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Talanta, 2021, 1115, (6), 3488-3491.
Kowalski T, Nowak Z. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chromatographia, 2010, 110, 2082-2093.
Wang L, Li J, Zhang H. "Identification and Structural Characterization of a Novel Degradation Product of 7-Methyl-1H-pyrido[2,3-b][1,4]oxazin-2(3H)-one Using HRMS and NMR". J. Pharm. Biomed. Anal., 2019, 1720, (3), 9095-9117.
Kim S H, Park J Y. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Environ. Sci. Technol., 2011, 2260, (5), 2160-2172.