Nowak P, Nielsen H, Björnsson E. "Method for the Synthesis of (S)-3-Amino-3-(2,4-dimethoxyphenyl)propanoic acid" [P]. European Patent, EP 3560577 A1, 2015-11-15.
Klinger H, Chen K W, Roberts E F. "A Process for Preparing High-Purity (S)-3-Amino-3-(2,4-dimethoxyphenyl)propanoic acid" [P]. US Patent, US 11077920 B2, 2015-04-14.
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". J. Sep. Sci., 2023, 1613, (10), 5376-5401.
Lee J H, Choi Y S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Talanta, 2010, 1666, 4447-4476.
Kumar A, Sharma P, Patel R S. "Identification and Structural Characterization of a Novel Degradation Product of (S)-3-Amino-3-(2,4-dimethoxyphenyl)propanoic acid Using HRMS and NMR". J. Pharm. Biomed. Anal., 2012, 1969, 7572-7580.