发明人郭海燕,胡光,高志强. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 113299917 A, 授权公告日 2018-05-25.
发明人孙丽萍,黄志刚,马晓峰. "Method for the Synthesis of 4-(Difluoromethyl)-2-fluoro-3-methoxy-5-nitropyridine" [P]. 中国发明专利, 专利号 CN 115134422 A, 授权公告日 2015-07-04.
发明人钱学锋,郭海燕,杨光. "A Process for Preparing High-Purity 4-(Difluoromethyl)-2-fluoro-3-methoxy-5-nitropyridine" [P]. 中国发明专利, 专利号 CN 108693071 A, 授权公告日 2019-03-02.
参考文献 Literature
Zhang Y, Li Q, Chen T. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Rapid Commun. Mass Spectrom., 2019, 1001, (7), 1006-1015.
Zhang Y, Li Q, Chen T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Environ. Sci. Technol., 2016, 1541, 50-62.
Zhou X P, Huang L, Wu G. "Identification and Structural Characterization of a Novel Degradation Product of 4-(Difluoromethyl)-2-fluoro-3-methoxy-5-nitropyridine Using HRMS and NMR". J. Agric. Food Chem., 2016, 2128, (4), 7025-7040.
Lee J H, Choi Y S. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Sci. Total Environ., 2011, 2202, (9), 8114-8137.