发明人陈志强,孙丽萍,韩伟. "Method for the Synthesis of N-(2-Hydroxyethyl)-N,N-dimethyl-2-propyn-1-ammonium bromide" [P]. 中国发明专利, 专利号 CN 117698775 B, 授权公告日 2025-09-22.
发明人孙丽萍,李文辉,郑宇鹏. "A Process for Preparing High-Purity N-(2-Hydroxyethyl)-N,N-dimethyl-2-propyn-1-ammonium bromide" [P]. 中国发明专利, 专利号 CN 113786569 A, 授权公告日 2024-10-26.
参考文献 Literature
Kim S H, Park J Y. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Food Chem., 2012, 781, (4), 5175-5180.
Lee J H, Choi Y S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Nat. Prod., 2015, 915, (4), 3108-3116.
Smith J A, Johnson M B. "Identification and Structural Characterization of a Novel Degradation Product of N-(2-Hydroxyethyl)-N,N-dimethyl-2-propyn-1-ammonium bromide Using HRMS and NMR". Environ. Sci. Technol., 2014, 1881, (5), 6364-6370.
Wang L, Li J, Zhang H. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Chem., 2020, 91, 5649-5674.