Martínez F, Sørensen M, Björnsson E. "一种5-乙基-4,6-二甲基-2-硫代-1H-吡啶-3-甲腈的合成方法" [P]. European Patent, EP 3268712 A1, 2016-10-25.
发明人杨光,王建平,李文辉. "Method for the Synthesis of 5-Ethyl-2-mercapto-4,6-dimethylnicotinonitrile" [P]. 中国发明专利, 专利号 CN 112425845 B, 授权公告日 2018-11-04.
Davis P L, Brown S R, Yamamoto T. "A Process for Preparing High-Purity 5-Ethyl-2-mercapto-4,6-dimethylnicotinonitrile" [P]. US Patent, US 11990520 B2, 2020-03-21.
参考文献 Literature
Garcia M, Rodriguez P. "Development and Validation of an LC-MS/MS Method for the Determination of 5-乙基-4,6-二甲基-2-硫代-1H-吡啶-3-甲腈 in Pharmaceutical Formulations". Chromatographia, 2016, 1650, (10), 7421-7448.
Mueller T, Schmidt R K. "A Stability-Indicating HPLC Method for the Separation and Quantification of 5-乙基-4,6-二甲基-2-硫代-1H-吡啶-3-甲腈 as an Impurity". Talanta, 2013, 1957, (1), 900-920.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of 5-Ethyl-2-mercapto-4,6-dimethylnicotinonitrile Using HRMS and NMR". Molecules, 2019, 1868, (3), 1544-1564.
Smith J A, Johnson M B. "Forced Degradation Studies to Evaluate 5-乙基-4,6-二甲基-2-硫代-1H-吡啶-3-甲腈 Profile in Drug Substances According to ICH Guidelines". Chemosphere, 2012, 213, (7), 8849-8855.