Chen K W, Park J H, O'Brien P Q. "Method for the Synthesis of 1-{[1-(difluoromethyl)-3,5-dimethyl-1h-pyrazol-4-yl]sulfonyl}piperidine-3-carboxylic acid" [P]. US Patent, US 11336675 B2, 2022-05-15.
参考文献 Literature
Fischer P, Wagner E. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Phytochemistry, 2010, 1032, (10), 7380-7386.
Yang F, Sun W, Liu J. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Agric. Food Chem., 2016, 429, (6), 5774-5788.
O'Brien K, Kennedy M L. "Identification and Structural Characterization of a Novel Degradation Product of 1-{[1-(difluoromethyl)-3,5-dimethyl-1h-pyrazol-4-yl]sulfonyl}piperidine-3-carboxylic acid Using HRMS and NMR". Chemosphere, 2016, 891, (1), 550-565.
Brown R C, Davis S M. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Food Chem., 2024, 1633, 1635-1643.