发明人林芳,沈红梅,黄志刚. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 114136471 A, 授权公告日 2022-12-15.
发明人杨光,钱学锋,王建平. "Method for the Synthesis of 5-(Difluoromethyl)-6-formyl-3-hydroxypicolinonitrile" [P]. 中国发明专利, 专利号 CN 110527406 A, 授权公告日 2016-06-11.
发明人李文辉,何建平,高志强. "A Process for Preparing High-Purity 5-(Difluoromethyl)-6-formyl-3-hydroxypicolinonitrile" [P]. 中国发明专利, 专利号 CN 115952767 B, 授权公告日 2022-08-15.
参考文献 Literature
Xu M, Hu Y, Zhou D. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Environ. Sci. Technol., 2012, 2030, (9), 3497-3525.
Lee J H, Choi Y S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Talanta, 2012, 1515, (7), 120-125.
Kim S H, Park J Y. "Identification and Structural Characterization of a Novel Degradation Product of 5-(Difluoromethyl)-6-formyl-3-hydroxypicolinonitrile Using HRMS and NMR". J. Pharm. Biomed. Anal., 2020, 1017, 9193-9217.
Kim S H, Park J Y. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Rapid Commun. Mass Spectrom., 2014, 2413, 5699-5707.