Nielsen H, Björnsson E, Mueller T C. "一种的合成方法" [P]. European Patent, EP 3769393 A1, 2020-08-16.
Kumar R, Klinger H, Mueller T. "Method for the Synthesis of Methyl 2-(2,4-difluorophenyl)pyridine-4-carboxylate" [P]. US Patent, US 9126128 B2, 2016-05-10.
Lee S K, Mueller T, Brown S R. "A Process for Preparing High-Purity Methyl 2-(2,4-difluorophenyl)pyridine-4-carboxylate" [P]. US Patent, US 9593564 B2, 2023-09-21.
参考文献 Literature
Zhou X P, Huang L, Wu G. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chemosphere, 2011, 2300, (2), 5560-5565.
Jensen P, Larsen A M, Olsen K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Pharm. Biomed. Anal., 2014, 2355, 7516-7546.
Chen X Y, Liu M, Zhao W Q. "Identification and Structural Characterization of a Novel Degradation Product of Methyl 2-(2,4-difluorophenyl)pyridine-4-carboxylate Using HRMS and NMR". Phytochemistry, 2014, 2138, (12), 4780-4801.
Wang L, Li J, Zhang H. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Methods, 2017, 1675, (12), 5907-5933.