Schröder R, Hughes D C, Fischer A B. "Method for the Synthesis of 5-Chloro-1-(4-chlorobenzyl)-N-(2,4-difluorophenyl)-6-oxo-1,6-dihydropyridine-3-carboxamide" [P]. US Patent, US 11069031 B2, 2018-12-01.
Johansson L, Sørensen M, Schröder R. "A Process for Preparing High-Purity 5-Chloro-1-(4-chlorobenzyl)-N-(2,4-difluorophenyl)-6-oxo-1,6-dihydropyridine-3-carboxamide" [P]. European Patent, EP 3127220 A1, 2021-08-19.
参考文献 Literature
Hughes D, Roberts J, Thomas A. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Nat. Prod., 2014, 279, 5657-5676.
Smith J A, Johnson M B. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Sci. Total Environ., 2018, 2322, (11), 7981-8006.
Brown R C, Davis S M. "Identification and Structural Characterization of a Novel Degradation Product of 5-Chloro-1-(4-chlorobenzyl)-N-(2,4-difluorophenyl)-6-oxo-1,6-dihydropyridine-3-carboxamide Using HRMS and NMR". Talanta, 2017, 528, (7), 7910-7913.
Yang F, Sun W, Liu J. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Pharm. Biomed. Anal., 2010, 412, 5931-5952.