Fischer A B, Chen K W, O'Brien P Q. "Method for the Synthesis of (S)-2-amino-2-(3-cyanophenyl)acetic acid" [P]. US Patent, US 11618257 B2, 2025-04-11.
Mueller T, O'Brien P Q, Roberts E F. "A Process for Preparing High-Purity (S)-2-amino-2-(3-cyanophenyl)acetic acid" [P]. US Patent, US 11289494 B2, 2023-12-15.
参考文献 Literature
Hughes D, Roberts J, Thomas A. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Phytochemistry, 2012, 258, (3), 7743-7754.
Yang F, Sun W, Liu J. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Methods, 2011, 1194, (10), 3779-3798.
Zhou X P, Huang L, Wu G. "Identification and Structural Characterization of a Novel Degradation Product of (S)-2-amino-2-(3-cyanophenyl)acetic acid Using HRMS and NMR". Food Chem., 2017, 334, 1213-1235.
Kowalski T, Nowak Z. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Sep. Sci., 2021, 1044, 3348-3351.