发明人杨光,孙丽萍,刘建华. "Method for the Synthesis of N-(2-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl]amino}ethyl)-4-fluoro-N-[(3-{N'-[(1Z)-[4-(trifluoromethyl)phenyl]methylidene]hydrazinecarbonyl}-4,5-dihydro-1,2-oxazol-5-yl)methyl]benzene-1-sulfonamide" [P]. 中国发明专利, 专利号 CN 110471017 B, 授权公告日 2022-03-12.
发明人黄志刚,马晓峰,郭海燕. "A Process for Preparing High-Purity N-(2-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl]amino}ethyl)-4-fluoro-N-[(3-{N'-[(1Z)-[4-(trifluoromethyl)phenyl]methylidene]hydrazinecarbonyl}-4,5-dihydro-1,2-oxazol-5-yl)methyl]benzene-1-sulfonamide" [P]. 中国发明专利, 专利号 CN 109682742 A, 授权公告日 2017-06-23.
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. Sep. Sci., 2016, 2264, (6), 8784-8787.
Kowalski T, Nowak Z. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2011, 2355, 9484-9495.
Hughes D, Roberts J, Thomas A. "Identification and Structural Characterization of a Novel Degradation Product of N-(2-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl]amino}ethyl)-4-fluoro-N-[(3-{N'-[(1Z)-[4-(trifluoromethyl)phenyl]methylidene]hydrazinecarbonyl}-4,5-dihydro-1,2-oxazol-5-yl)methyl]benzene-1-sulfonamide Using HRMS and NMR". J. Agric. Food Chem., 2020, 668, (3), 406-410.
Brown R C, Davis S M. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Sci. Total Environ., 2017, 1915, 9276-9293.