Fischer A B, Anderson J P, O'Brien P Q. "一种的合成方法" [P]. US Patent, US 9561411 B2, 2015-08-11.
Thompson G K, Hughes D C, Kumar R. "Method for the Synthesis of 2-(Difluoromethyl)-3-methyl-5-nitropyridine-6-acetic acid" [P]. US Patent, US 10301335 B2, 2023-01-16.
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., 2021, 2437, (1), 1858-1863.
Brown R C, Davis S M. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2017, 520, 4250-4274.
O'Brien K, Kennedy M L. "Identification and Structural Characterization of a Novel Degradation Product of 2-(Difluoromethyl)-3-methyl-5-nitropyridine-6-acetic acid Using HRMS and NMR". Anal. Chim. Acta, 2013, 100, (11), 1063-1086.
Wang L, Li J, Zhang H. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Environ. Sci. Technol., 2010, 1806, (7), 7791-7821.