发明人罗永刚,黄志刚,马晓峰. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 111163493 A, 授权公告日 2022-08-12.
Stevens L M, Roberts E F, Patel M V. "Method for the Synthesis of 1-Ethyl-2-methylpyridinium Bromide" [P]. US Patent, US 10447592 B2, 2025-11-05.
发明人郭海燕,钱学锋,沈红梅. "A Process for Preparing High-Purity 1-Ethyl-2-methylpyridinium Bromide" [P]. 中国发明专利, 专利号 CN 111677318 B, 授权公告日 2020-01-10.
参考文献 Literature
Martinez C, Lopez D R. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chromatographia, 2010, 344, 8734-8737.
Chen X Y, Liu M, Zhao W Q. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Food Chem., 2010, 2104, (10), 871-885.
Zhang Y, Li Q, Chen T. "Identification and Structural Characterization of a Novel Degradation Product of 1-Ethyl-2-methylpyridinium Bromide Using HRMS and NMR". J. Agric. Food Chem., 2018, 1947, (6), 7296-7326.
Martinez C, Lopez D R. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Molecules, 2010, 1986, 3586-3607.