Kumar R, Roberts E F, O'Brien P Q. "Method for the Synthesis of 4-Hydroxy-1-((2,3,5,6-tetramethylphenyl)sulfonyl)pyrrolidine-2-carboxylic acid" [P]. US Patent, US 11262048 B2, 2023-08-06.
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 in Pharmaceutical Formulations". J. Agric. Food Chem., 2018, 322, 2044-2051.
Fischer P, Wagner E. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Environ. Sci. Technol., 2011, 1057, 3823-3845.
Martinez C, Lopez D R. "Identification and Structural Characterization of a Novel Degradation Product of 4-Hydroxy-1-((2,3,5,6-tetramethylphenyl)sulfonyl)pyrrolidine-2-carboxylic acid Using HRMS and NMR". Chemosphere, 2015, 248, 5593-5609.
Fischer P, Wagner E. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Chem., 2021, 1088, 5634-5664.