Chen K W, Brown S R, Patel M V. "Method for the Synthesis of 3-(Difluoromethyl)-4-hydroxy-6-(trifluoromethyl)picolinonitrile" [P]. US Patent, US 9271732 B2, 2017-07-08.
参考文献 Literature
Yamamoto K, Tanaka H, Suzuki T. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chemosphere, 2012, 511, (2), 5948-5959.
Wang L, Li J, Zhang H. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chromatographia, 2017, 1266, 8541-8547.
Xu M, Hu Y, Zhou D. "Identification and Structural Characterization of a Novel Degradation Product of 3-(Difluoromethyl)-4-hydroxy-6-(trifluoromethyl)picolinonitrile Using HRMS and NMR". Molecules, 2023, 2081, (12), 5112-5123.
Zhou X P, Huang L, Wu G. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Pharm. Biomed. Anal., 2012, 622, 5881-5886.