Park J H, Schröder R, Brown S R. "Method for the Synthesis of (3R,4S)-4-ethylpyrrolidine-3-carboxylic acid" [P]. US Patent, US 11589375 B2, 2023-09-12.
参考文献 Literature
Brown R C, Davis S M. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Sep. Sci., 2010, 1062, (11), 8076-8103.
Chen X Y, Liu M, Zhao W Q. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chem., 2022, 1014, 529-546.
Hughes D, Roberts J, Thomas A. "Identification and Structural Characterization of a Novel Degradation Product of (3R,4S)-4-ethylpyrrolidine-3-carboxylic acid Using HRMS and NMR". Sci. Total Environ., 2018, 1992, (9), 1963-1981.
Yamamoto K, Tanaka H, Suzuki T. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Chim. Acta, 2012, 1088, (5), 423-442.