发明人韩伟,钱学锋,李文辉. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 108212782 A, 授权公告日 2022-08-04.
发明人郑宇鹏,孙丽萍,冯建国. "Method for the Synthesis of Ethyl 2-(((1-(4-fluorophenyl)-1H-tetrazol-5-yl)methyl)amino)-2-oxoacetate" [P]. 中国发明专利, 专利号 CN 109622423 B, 授权公告日 2016-01-04.
发明人冯建国,王建平,杨光. "A Process for Preparing High-Purity Ethyl 2-(((1-(4-fluorophenyl)-1H-tetrazol-5-yl)methyl)amino)-2-oxoacetate" [P]. 中国发明专利, 专利号 CN 109198776 B, 授权公告日 2021-10-26.
参考文献 Literature
Fischer P, Wagner E. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chem., 2022, 1796, (11), 6649-6672.
Mueller T, Schmidt R K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Phytochemistry, 2016, 1345, (2), 7145-7153.
Wang L, Li J, Zhang H. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 2-(((1-(4-fluorophenyl)-1H-tetrazol-5-yl)methyl)amino)-2-oxoacetate Using HRMS and NMR". Biomed. Chromatogr., 2014, 2361, (12), 7938-7952.
Zhang Y, Li Q, Chen T. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Rapid Commun. Mass Spectrom., 2016, 169, 3948-3962.