发明人郑宇鹏,黄志刚,胡光. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 116843823 A, 授权公告日 2021-12-25.
Roberts E F, Hughes D C, Brown S R. "Method for the Synthesis of 7-Amino-4-(2-hydroxyethyl)-2h-benzo[b][1,4]oxazin-3(4h)-one" [P]. US Patent, US 9770144 B2, 2022-12-14.
发明人朱建伟,高志强,马晓峰. "A Process for Preparing High-Purity 7-Amino-4-(2-hydroxyethyl)-2h-benzo[b][1,4]oxazin-3(4h)-one" [P]. 中国发明专利, 专利号 CN 117396214 A, 授权公告日 2023-07-11.
参考文献 Literature
Wang L, Li J, Zhang H. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Methods, 2022, 1191, (10), 7074-7086.
Mueller T, Schmidt R K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chem., 2015, 1919, (10), 2385-2390.
Lee J H, Choi Y S. "Identification and Structural Characterization of a Novel Degradation Product of 7-Amino-4-(2-hydroxyethyl)-2h-benzo[b][1,4]oxazin-3(4h)-one Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2020, 2434, (8), 2304-2307.