发明人刘建华,张德明,朱建伟. "Method for the Synthesis of 4-Amino-5-(difluoromethyl)-6-oxo-1,6-dihydropyridine-3-carboxamide" [P]. 中国发明专利, 专利号 CN 110012883 B, 授权公告日 2022-08-22.
Lefèvre J P, Nowak P, Schröder R. "A Process for Preparing High-Purity 4-Amino-5-(difluoromethyl)-6-oxo-1,6-dihydropyridine-3-carboxamide" [P]. European Patent, EP 3437846 A1, 2017-01-25.
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., 2011, 148, 2305-2328.
Mueller T, Schmidt R K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Agric. Food Chem., 2020, 1170, (6), 2228-2231.
Yamamoto K, Tanaka H, Suzuki T. "Identification and Structural Characterization of a Novel Degradation Product of 4-Amino-5-(difluoromethyl)-6-oxo-1,6-dihydropyridine-3-carboxamide Using HRMS and NMR". Anal. Chim. Acta, 2012, 1539, (11), 4912-4938.
Brown R C, Davis S M. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Chromatogr. A, 2010, 1749, 470-489.