Hughes D C, Fischer A B, O'Brien P Q. "一种的合成方法" [P]. US Patent, US 11342153 B2, 2020-04-18.
发明人孙丽萍,郑宇鹏,黄志刚. "Method for the Synthesis of Ethyl 2-(4-((tert-butoxycarbonyl)amino)phenyl)oxazole-4-carboxylate" [P]. 中国发明专利, 专利号 CN 114100493 B, 授权公告日 2024-03-01.
发明人马晓峰,杨光,林芳. "A Process for Preparing High-Purity Ethyl 2-(4-((tert-butoxycarbonyl)amino)phenyl)oxazole-4-carboxylate" [P]. 中国发明专利, 专利号 CN 116737466 A, 授权公告日 2019-11-23.
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". Anal. Chim. Acta, 2015, 551, 1962-1989.
Smith J A, Johnson M B. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Methods, 2025, 1613, (6), 5381-5398.
Kumar A, Sharma P, Patel R S. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 2-(4-((tert-butoxycarbonyl)amino)phenyl)oxazole-4-carboxylate Using HRMS and NMR". J. Sep. Sci., 2014, 1477, (4), 6104-6128.
Chen X Y, Liu M, Zhao W Q. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Chromatographia, 2021, 457, 6066-6086.