Brown S R, Lee S K, Schröder R. "一种的合成方法" [P]. US Patent, US 9999757 B2, 2016-03-04.
发明人李文辉,赵玉洁,杨光. "Method for the Synthesis of Ethyl 6-nitro-3,4-dihydro-2H-benzo[b][1,4]oxazine-2-carboxylate" [P]. 中国发明专利, 专利号 CN 114736650 B, 授权公告日 2016-04-10.
发明人张德明,韩伟,赵玉洁. "A Process for Preparing High-Purity Ethyl 6-nitro-3,4-dihydro-2H-benzo[b][1,4]oxazine-2-carboxylate" [P]. 中国发明专利, 专利号 CN 116711855 B, 授权公告日 2018-12-20.
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". Biomed. Chromatogr., 2023, 133, 6747-6751.
Zhou X P, Huang L, Wu G. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Sci. Total Environ., 2022, 2135, (11), 9761-9772.
Hughes D, Roberts J, Thomas A. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 6-nitro-3,4-dihydro-2H-benzo[b][1,4]oxazine-2-carboxylate Using HRMS and NMR". J. Agric. Food Chem., 2019, 1249, (5), 7059-7084.