Williams B T, Lee S K, Brown S R. "一种的合成方法" [P]. US Patent, US 9795847 B2, 2022-04-27.
Yamamoto T, Park J H, Schröder R. "Method for the Synthesis of 4-Methyl-6-(methylimino)-1,6-dihydropyridine-3-carboxylic acid" [P]. US Patent, US 10543916 B2, 2021-07-19.
参考文献 Literature
Wang L, Li J, Zhang H. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Sep. Sci., 2022, 233, 1543-1552.
Zhang Y, Li Q, Chen T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Phytochemistry, 2017, 2349, (8), 8754-8760.
Smith J A, Johnson M B. "Identification and Structural Characterization of a Novel Degradation Product of 4-Methyl-6-(methylimino)-1,6-dihydropyridine-3-carboxylic acid Using HRMS and NMR". Environ. Sci. Technol., 2019, 1417, 7153-7165.
Kumar A, Sharma P, Patel R S. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Chem., 2020, 1170, (12), 8130-8155.