发明人刘建华,钱学锋,胡光. "Method for the Synthesis of 2-(Difluoromethyl)-6-methyl-3-nitropyridine-4-carboxylic acid" [P]. 中国发明专利, 专利号 CN 112257481 B, 授权公告日 2021-04-28.
发明人王建平,陈志强,郑宇鹏. "A Process for Preparing High-Purity 2-(Difluoromethyl)-6-methyl-3-nitropyridine-4-carboxylic acid" [P]. 中国发明专利, 专利号 CN 110271554 B, 授权公告日 2017-01-14.
参考文献 Literature
Martinez C, Lopez D R. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chim. Acta, 2020, 1803, (1), 6968-6990.
Kumar A, Sharma P, Patel R S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Sci. Total Environ., 2021, 1855, (12), 8158-8174.
Jensen P, Larsen A M, Olsen K. "Identification and Structural Characterization of a Novel Degradation Product of 2-(Difluoromethyl)-6-methyl-3-nitropyridine-4-carboxylic acid Using HRMS and NMR". Food Chem., 2025, 1925, 1883-1894.
Kumar A, Sharma P, Patel R S. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Methods, 2018, 599, (8), 2526-2551.