发明人钱学锋,刘建华,高志强. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 108694337 A, 授权公告日 2020-11-12.
Williams B T, Lee S K, Patel M V. "Method for the Synthesis of 2-(Difluoromethyl)-5-hydroxy-3-(trifluoromethoxy)pyridine-4-acetonitrile" [P]. US Patent, US 11761231 B2, 2016-12-23.
发明人何建平,张德明,杨光. "A Process for Preparing High-Purity 2-(Difluoromethyl)-5-hydroxy-3-(trifluoromethoxy)pyridine-4-acetonitrile" [P]. 中国发明专利, 专利号 CN 113447439 A, 授权公告日 2018-09-28.
参考文献 Literature
Lee J H, Choi Y S. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Molecules, 2023, 363, (7), 1322-1339.
Mueller T, Schmidt R K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Agric. Food Chem., 2022, 2377, (4), 9853-9870.
O'Brien K, Kennedy M L. "Identification and Structural Characterization of a Novel Degradation Product of 2-(Difluoromethyl)-5-hydroxy-3-(trifluoromethoxy)pyridine-4-acetonitrile Using HRMS and NMR". Anal. Chim. Acta, 2017, 727, 9031-9042.
Xu M, Hu Y, Zhou D. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Sep. Sci., 2010, 2208, (11), 4910-4923.