发明人马晓峰,徐明华,韩伟. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 108027576 A, 授权公告日 2016-05-11.
发明人唐晓军,朱建伟,孙丽萍. "Method for the Synthesis of 5-Ethoxyoxazole-2-carbohydrazide" [P]. 中国发明专利, 专利号 CN 113965457 B, 授权公告日 2016-03-12.
发明人朱建伟,胡光,郑宇鹏. "A Process for Preparing High-Purity 5-Ethoxyoxazole-2-carbohydrazide" [P]. 中国发明专利, 专利号 CN 113888860 A, 授权公告日 2019-04-18.
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". J. Chromatogr. A, 2020, 607, (8), 3302-3314.
Kowalski T, Nowak Z. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chromatographia, 2015, 1051, 4115-4136.
Hughes D, Roberts J, Thomas A. "Identification and Structural Characterization of a Novel Degradation Product of 5-Ethoxyoxazole-2-carbohydrazide Using HRMS and NMR". J. Pharm. Biomed. Anal., 2018, 2348, (7), 6250-6270.
Smith J A, Johnson M B. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Molecules, 2021, 1280, (8), 2243-2251.