Björnsson E, Kowalski A, Martínez F. "Method for the Synthesis of 1-(4-(Dimethylamino)benzyl)-5-oxopyrrolidine-2-carboxylic acid" [P]. European Patent, EP 3833696 A1, 2019-11-18.
Williams B T, Chen K W, Roberts E F. "A Process for Preparing High-Purity 1-(4-(Dimethylamino)benzyl)-5-oxopyrrolidine-2-carboxylic acid" [P]. US Patent, US 10108749 B2, 2022-11-28.
参考文献 Literature
Xu M, Hu Y, Zhou D. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Environ. Sci. Technol., 2018, 867, 6220-6248.
Jensen P, Larsen A M, Olsen K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2010, 1080, (10), 1314-1343.
O'Brien K, Kennedy M L. "Identification and Structural Characterization of a Novel Degradation Product of 1-(4-(Dimethylamino)benzyl)-5-oxopyrrolidine-2-carboxylic acid Using HRMS and NMR". Anal. Chim. Acta, 2017, 2376, (3), 2170-2180.
Lee J H, Choi Y S. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Methods, 2021, 2408, 6390-6412.