Schröder R, Kowalski A, Björnsson E. "一种的合成方法" [P]. European Patent, EP 3428929 A1, 2024-10-16.
Stevens L M, Schröder R, Johnson M A. "Method for the Synthesis of Ethyl 6-(tert-butyl)-3-cyano-2-hydroxyisonicotinate" [P]. US Patent, US 11453670 B2, 2016-06-21.
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". Food Chem., 2016, 119, (9), 8092-8098.
Kumar A, Sharma P, Patel R S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Nat. Prod., 2020, 2100, 98-118.
Smith J A, Johnson M B. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 6-(tert-butyl)-3-cyano-2-hydroxyisonicotinate Using HRMS and NMR". J. Chromatogr. A, 2013, 2474, 1092-1107.
Xu M, Hu Y, Zhou D. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Pharm. Biomed. Anal., 2022, 80, 5202-5207.