发明人林芳,郭海燕,郑宇鹏. "Method for the Synthesis of 3-((tert-Butoxycarbonyl)amino)-4,4-difluorobutanoic acid" [P]. 中国发明专利, 专利号 CN 108167969 B, 授权公告日 2022-12-07.
发明人冯建国,张德明,林芳. "A Process for Preparing High-Purity 3-((tert-Butoxycarbonyl)amino)-4,4-difluorobutanoic acid" [P]. 中国发明专利, 专利号 CN 114254057 A, 授权公告日 2022-08-06.
参考文献 Literature
Zhang Y, Li Q, Chen T. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Methods, 2018, 1613, (1), 9810-9820.
Chen X Y, Liu M, Zhao W Q. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Sci. Total Environ., 2014, 1882, (4), 7175-7186.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of 3-((tert-Butoxycarbonyl)amino)-4,4-difluorobutanoic acid Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2017, 1801, 1600-1607.
Xu M, Hu Y, Zhou D. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Chemosphere, 2025, 95, (3), 5643-5670.