发明人韩伟,刘建华,何建平. "Method for the Synthesis of (2R,4R)-1-(((9H-fluoren-9-yl)methoxy)carbonyl)-4-(trifluoromethyl)pyrrolidine-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 111063902 A, 授权公告日 2022-08-14.
发明人罗永刚,韩伟,赵玉洁. "A Process for Preparing High-Purity (2R,4R)-1-(((9H-fluoren-9-yl)methoxy)carbonyl)-4-(trifluoromethyl)pyrrolidine-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 115432507 A, 授权公告日 2020-12-11.
参考文献 Literature
Zhang Y, Li Q, Chen T. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Chromatogr. A, 2012, 1189, (11), 257-278.
Fischer P, Wagner E. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Sci. Total Environ., 2015, 593, 9620-9638.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of (2R,4R)-1-(((9H-fluoren-9-yl)methoxy)carbonyl)-4-(trifluoromethyl)pyrrolidine-2-carboxylic acid Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2014, 2166, (1), 7384-7392.
Zhang Y, Li Q, Chen T. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Chem., 2017, 2141, (10), 3864-3879.