发明人孙丽萍,杨光,黄志刚. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 115897566 A, 授权公告日 2023-11-11.
发明人韩伟,张德明,朱建伟. "Method for the Synthesis of 6-Amino-4-(2-hydroxyethyl)-2h-benzo[b][1,4]oxazin-3(4h)-one" [P]. 中国发明专利, 专利号 CN 115746620 A, 授权公告日 2021-07-28.
发明人冯建国,孙丽萍,罗永刚. "A Process for Preparing High-Purity 6-Amino-4-(2-hydroxyethyl)-2h-benzo[b][1,4]oxazin-3(4h)-one" [P]. 中国发明专利, 专利号 CN 114516224 A, 授权公告日 2022-12-13.
参考文献 Literature
Lee J H, Choi Y S. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chim. Acta, 2010, 957, (1), 8057-8085.
Hughes D, Roberts J, Thomas A. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chem., 2016, 1547, (9), 2910-2920.
Brown R C, Davis S M. "Identification and Structural Characterization of a Novel Degradation Product of 6-Amino-4-(2-hydroxyethyl)-2h-benzo[b][1,4]oxazin-3(4h)-one Using HRMS and NMR". Chromatographia, 2017, 1452, 9401-9431.