Johansson L, Sørensen M, Jørgensen K. "一种的合成方法" [P]. European Patent, EP 3958016 A1, 2016-12-21.
发明人郑宇鹏,何建平,孙丽萍. "Method for the Synthesis of 2,2,5,5-Tetramethylpyrrolidine hydrochloride" [P]. 中国发明专利, 专利号 CN 109649003 A, 授权公告日 2020-09-05.
发明人赵玉洁,李文辉,钱学锋. "A Process for Preparing High-Purity 2,2,5,5-Tetramethylpyrrolidine hydrochloride" [P]. 中国发明专利, 专利号 CN 111337468 B, 授权公告日 2021-08-20.
参考文献 Literature
Kowalski T, Nowak Z. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Food Chem., 2010, 771, 6056-6067.
Fischer P, Wagner E. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chem., 2022, 971, 6096-6103.
Wang L, Li J, Zhang H. "Identification and Structural Characterization of a Novel Degradation Product of 2,2,5,5-Tetramethylpyrrolidine hydrochloride Using HRMS and NMR". J. Chromatogr. A, 2011, 2355, 7000-7007.