发明人冯建国,朱建伟,唐晓军. "Method for the Synthesis of (3S,4R)-4-ethylpyrrolidine-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 111460970 B, 授权公告日 2015-01-13.
发明人徐明华,冯建国,马晓峰. "A Process for Preparing High-Purity (3S,4R)-4-ethylpyrrolidine-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 116358704 A, 授权公告日 2024-11-04.
参考文献 Literature
Yamamoto K, Tanaka H, Suzuki T. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Rapid Commun. Mass Spectrom., 2014, 260, (7), 6241-6249.
Yamamoto K, Tanaka H, Suzuki T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Talanta, 2016, 279, (4), 4779-4805.
Mueller T, Schmidt R K. "Identification and Structural Characterization of a Novel Degradation Product of (3S,4R)-4-ethylpyrrolidine-3-carboxylic acid Using HRMS and NMR". Anal. Methods, 2022, 1606, (2), 5001-5029.
Jensen P, Larsen A M, Olsen K. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Chromatographia, 2016, 1459, (11), 3323-3345.