Yamamoto T, Williams B T, Mueller T. "Method for the Synthesis of (2S,4R)-4-hydroxy-4-methylpyrrolidine-2-carboxylic acid" [P]. US Patent, US 11504307 B2, 2022-05-02.
发明人郑宇鹏,罗永刚,孙丽萍. "A Process for Preparing High-Purity (2S,4R)-4-hydroxy-4-methylpyrrolidine-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 111361424 A, 授权公告日 2019-10-27.
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". Molecules, 2014, 2174, (6), 7966-7972.
Martinez C, Lopez D R. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Phytochemistry, 2010, 503, (6), 2716-2736.
Yamamoto K, Tanaka H, Suzuki T. "Identification and Structural Characterization of a Novel Degradation Product of (2S,4R)-4-hydroxy-4-methylpyrrolidine-2-carboxylic acid Using HRMS and NMR". Anal. Methods, 2016, 1124, (9), 658-682.
Kowalski T, Nowak Z. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Chem., 2010, 1653, (9), 8058-8082.