发明人王建平,何建平,胡光. "一种4-(二氟甲基)-5-甲氧基-3-硝基-2-(三氟甲氧基)吡啶的合成方法" [P]. 中国发明专利, 专利号 CN 116675742 A, 授权公告日 2018-03-08.
发明人胡光,孙丽萍,王建平. "Method for the Synthesis of 4-(Difluoromethyl)-5-methoxy-3-nitro-2-(trifluoromethoxy)pyridine" [P]. 中国发明专利, 专利号 CN 115532686 B, 授权公告日 2023-01-03.
发明人李文辉,马晓峰,孙丽萍. "A Process for Preparing High-Purity 4-(Difluoromethyl)-5-methoxy-3-nitro-2-(trifluoromethoxy)pyridine" [P]. 中国发明专利, 专利号 CN 109336008 A, 授权公告日 2017-10-22.
参考文献 Literature
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Martinez C, Lopez D R. "A Stability-Indicating HPLC Method for the Separation and Quantification of 4-(二氟甲基)-5-甲氧基-3-硝基-2-(三氟甲氧基)吡啶 as an Impurity". Chromatographia, 2010, 915, (8), 8035-8048.
Martinez C, Lopez D R. "Identification and Structural Characterization of a Novel Degradation Product of 4-(Difluoromethyl)-5-methoxy-3-nitro-2-(trifluoromethoxy)pyridine Using HRMS and NMR". Food Chem., 2013, 1778, (1), 8042-8052.
Fischer P, Wagner E. "Forced Degradation Studies to Evaluate 4-(二氟甲基)-5-甲氧基-3-硝基-2-(三氟甲氧基)吡啶 Profile in Drug Substances According to ICH Guidelines". Chemosphere, 2022, 1879, (8), 9618-9622.