发明人李文辉,冯建国,黄志刚. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 108063549 A, 授权公告日 2023-08-22.
发明人孙丽萍,郭海燕,杨光. "Method for the Synthesis of 5-Ethyl-2-methyl-1-(5,5,7,7-tetramethyloctan-2-yl)pyridin-1-ium chloride" [P]. 中国发明专利, 专利号 CN 108792186 B, 授权公告日 2020-10-06.
参考文献 Literature
Zhou X P, Huang L, Wu G. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Agric. Food Chem., 2017, 2368, 2599-2608.
Lee J H, Choi Y S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chem., 2015, 158, (1), 3379-3404.
Yang F, Sun W, Liu J. "Identification and Structural Characterization of a Novel Degradation Product of 5-Ethyl-2-methyl-1-(5,5,7,7-tetramethyloctan-2-yl)pyridin-1-ium chloride Using HRMS and NMR". J. Nat. Prod., 2013, 1177, 8262-8267.
Smith J A, Johnson M B. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Chim. Acta, 2010, 900, (1), 685-713.