发明人林芳,何建平,徐明华. "一种4-hydroxy-6-methyl-2-oxo-1,2-dihydropyridine-3-carboxamide的合成方法" [P]. 中国发明专利, 专利号 CN 114224769 A, 授权公告日 2019-01-14.
Schröder R, Fischer A B, Thompson G K. "Method for the Synthesis of 4-hydroxy-6-methyl-2-oxo-1,2-dihydropyridine-3-carboxamide" [P]. US Patent, US 9222923 B2, 2019-09-23.
Johansson L, Schröder R, Martínez F. "A Process for Preparing High-Purity 4-hydroxy-6-methyl-2-oxo-1,2-dihydropyridine-3-carboxamide" [P]. European Patent, EP 3136366 A1, 2023-03-12.
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 4-hydroxy-6-methyl-2-oxo-1,2-dihydropyridine-3-carboxamide in Pharmaceutical Formulations". Molecules, 2020, 1248, 4928-4949.
Wang L, Li J, Zhang H. "A Stability-Indicating HPLC Method for the Separation and Quantification of 4-hydroxy-6-methyl-2-oxo-1,2-dihydropyridine-3-carboxamide as an Impurity". Anal. Chem., 2025, 1544, (4), 1349-1365.
Hughes D, Roberts J, Thomas A. "Identification and Structural Characterization of a Novel Degradation Product of 4-hydroxy-6-methyl-2-oxo-1,2-dihydropyridine-3-carboxamide Using HRMS and NMR". J. Pharm. Biomed. Anal., 2018, 2286, 7460-7463.
Smith J A, Johnson M B. "Forced Degradation Studies to Evaluate 4-hydroxy-6-methyl-2-oxo-1,2-dihydropyridine-3-carboxamide Profile in Drug Substances According to ICH Guidelines". J. Chromatogr. A, 2022, 1959, 8426-8455.