发明人罗永刚,林芳,张德明. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 116431829 A, 授权公告日 2021-03-06.
发明人杨光,胡光,黄志刚. "Method for the Synthesis of 3-(Difluoromethyl)-5-hydroxy-4-nitropicolinonitrile" [P]. 中国发明专利, 专利号 CN 110842303 B, 授权公告日 2015-10-20.
Thompson G K, Hughes D C, Lee S K. "A Process for Preparing High-Purity 3-(Difluoromethyl)-5-hydroxy-4-nitropicolinonitrile" [P]. US Patent, US 9479646 B2, 2021-12-13.
参考文献 Literature
Chen X Y, Liu M, Zhao W Q. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Nat. Prod., 2011, 1022, (1), 8757-8772.
Zhou X P, Huang L, Wu G. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chemosphere, 2012, 1155, 9427-9444.
Martinez C, Lopez D R. "Identification and Structural Characterization of a Novel Degradation Product of 3-(Difluoromethyl)-5-hydroxy-4-nitropicolinonitrile Using HRMS and NMR". Anal. Chem., 2010, 741, (8), 7565-7593.
Garcia M, Rodriguez P. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Chromatogr. A, 2017, 344, (10), 5151-5162.