发明人马晓峰,何建平,沈红梅. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 112670207 A, 授权公告日 2024-05-24.
Schröder R, Jørgensen K, Martínez F. "Method for the Synthesis of (S)-2-amino-4-(2-amino-5-fluorophenyl)-4-oxobutanoic acid" [P]. European Patent, EP 3116383 A1, 2020-11-21.
发明人孙丽萍,周伟,马晓峰. "A Process for Preparing High-Purity (S)-2-amino-4-(2-amino-5-fluorophenyl)-4-oxobutanoic acid" [P]. 中国发明专利, 专利号 CN 113754415 B, 授权公告日 2017-04-13.
参考文献 Literature
Kowalski T, Nowak Z. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Molecules, 2014, 1345, (5), 8262-8277.
Wang L, Li J, Zhang H. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Sci. Total Environ., 2019, 1187, 6998-7003.
Hughes D, Roberts J, Thomas A. "Identification and Structural Characterization of a Novel Degradation Product of (S)-2-amino-4-(2-amino-5-fluorophenyl)-4-oxobutanoic acid Using HRMS and NMR". J. Pharm. Biomed. Anal., 2011, 2371, 506-512.
Fischer P, Wagner E. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Chem., 2014, 1856, 4566-4575.