发明人黄志刚,冯建国,钱学锋. "Method for the Synthesis of 2-Amino-4-(2,6-difluorophenyl)butanoic acid" [P]. 中国发明专利, 专利号 CN 116997747 B, 授权公告日 2025-06-22.
发明人徐明华,沈红梅,郑宇鹏. "A Process for Preparing High-Purity 2-Amino-4-(2,6-difluorophenyl)butanoic acid" [P]. 中国发明专利, 专利号 CN 113001944 A, 授权公告日 2025-04-18.
参考文献 Literature
Yang F, Sun W, Liu J. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Phytochemistry, 2020, 1520, (3), 3115-3125.
Kowalski T, Nowak Z. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Sep. Sci., 2022, 675, (4), 8826-8847.
Zhou X P, Huang L, Wu G. "Identification and Structural Characterization of a Novel Degradation Product of 2-Amino-4-(2,6-difluorophenyl)butanoic acid Using HRMS and NMR". J. Pharm. Biomed. Anal., 2021, 1912, (6), 8715-8721.
Yang F, Sun W, Liu J. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Molecules, 2012, 2076, 3383-3386.