Davis P L, Kumar R, Mueller T. "Method for the Synthesis of rac-(3R,4R)-1-benzyl-4-(thiophen-2-yl)pyrrolidine-3-carboxylic acid" [P]. US Patent, US 10459759 B2, 2019-11-07.
Kumar R, Lee S K, Klinger H. "A Process for Preparing High-Purity rac-(3R,4R)-1-benzyl-4-(thiophen-2-yl)pyrrolidine-3-carboxylic acid" [P]. US Patent, US 9923183 B2, 2017-11-13.
参考文献 Literature
Zhou X P, Huang L, Wu G. "Development and Validation of an LC-MS/MS Method for the Determination of rac-(3R,4R)-1-benzyl-4-(thiophen-2-yl)pyrrolidine-3-carboxylic acid in Pharmaceutical Formulations". Anal. Methods, 2023, 835, 4033-4049.
O'Brien K, Kennedy M L. "A Stability-Indicating HPLC Method for the Separation and Quantification of rac-(3R,4R)-1-benzyl-4-(thiophen-2-yl)pyrrolidine-3-carboxylic acid as an Impurity". Talanta, 2012, 2479, (2), 2740-2766.
Smith J A, Johnson M B. "Identification and Structural Characterization of a Novel Degradation Product of rac-(3R,4R)-1-benzyl-4-(thiophen-2-yl)pyrrolidine-3-carboxylic acid Using HRMS and NMR". Anal. Chem., 2019, 2435, 2918-2925.
Zhou X P, Huang L, Wu G. "Forced Degradation Studies to Evaluate rac-(3R,4R)-1-benzyl-4-(thiophen-2-yl)pyrrolidine-3-carboxylic acid Profile in Drug Substances According to ICH Guidelines". Phytochemistry, 2020, 1283, (1), 1133-1153.