Chen K W, Hughes D C, Stevens L M. "Method for the Synthesis of 2-(Difluoromethyl)-3-hydroxy-6-(trifluoromethyl)pyridine-5-carboxylic acid" [P]. US Patent, US 11121483 B2, 2018-01-20.
发明人黄志刚,沈红梅,胡光. "A Process for Preparing High-Purity 2-(Difluoromethyl)-3-hydroxy-6-(trifluoromethyl)pyridine-5-carboxylic acid" [P]. 中国发明专利, 专利号 CN 114536287 B, 授权公告日 2015-11-10.
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". Food Chem., 2024, 1436, 7554-7568.
Chen X Y, Liu M, Zhao W Q. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Biomed. Chromatogr., 2017, 687, (10), 4569-4576.
Chen X Y, Liu M, Zhao W Q. "Identification and Structural Characterization of a Novel Degradation Product of 2-(Difluoromethyl)-3-hydroxy-6-(trifluoromethyl)pyridine-5-carboxylic acid Using HRMS and NMR". J. Nat. Prod., 2015, 1395, 4525-4531.
Jensen P, Larsen A M, Olsen K. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Chromatographia, 2023, 1641, (1), 3303-3308.