Stevens L M, Roberts E F, Anderson J P. "Method for the Synthesis of 6-Ethoxy-4-methylnicotinic acid" [P]. US Patent, US 10123554 B2, 2025-01-21.
参考文献 Literature
Yang F, Sun W, Liu J. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Rapid Commun. Mass Spectrom., 2017, 1064, (9), 3491-3521.
Yamamoto K, Tanaka H, Suzuki T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chim. Acta, 2016, 1041, 536-542.
Jensen P, Larsen A M, Olsen K. "Identification and Structural Characterization of a Novel Degradation Product of 6-Ethoxy-4-methylnicotinic acid Using HRMS and NMR". J. Pharm. Biomed. Anal., 2013, 342, (6), 8349-8360.
Jensen P, Larsen A M, Olsen K. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Biomed. Chromatogr., 2024, 2090, (3), 4315-4327.