Liquid Chromatographic Resolution of Mexiletine and Its Analogs on Crown Ether-Based Chiral Stationary Phases
作者:Kab Bong Jin、Hee Eun Kim、Myung Ho Hyun
DOI:10.1002/chir.22318
日期:2014.5
effective class IB antiarrhythmic agent, and its analogs were resolved on three different crown ether‐based chiral stationary phases (CSPs), one (CSP 1) of which is based on (+)‐(18‐crown‐6)‐2,3,11,12‐tetracarboxylic acid and the other two (CSP 2 and CSP 3) are based on (3,3’‐diphenyl‐1,1’‐binaphthyl)‐20‐crown‐6. Mexiletine was resolved with a resolution (RS) of greater than 1.00 on CSP 1 and CSP 3
一种有效的IB类抗心律失常药美西律及其类似物在三种基于冠醚的手性固定相(CSP)上分离,其中一种(CSP 1)基于(+)-(18-crown-6)- 2,3,11,12-四羧酸和另外两种(CSP 2和CSP 3)基于(3,3'-diphenyl-1,1'-binaphthyl)-20-crown-6。美西律汀在CSP 1和CSP 3上的拆分度(R S)大于1.00,在二氧化硅表面上含有残留的保护硅烷醇基团的正辛基,但在CSP 2上的拆分度(R S)小于1.00。在三种CSP的手性中心拆分含美西律汀类似物的色谱行为,在很大程度上取决于分析物的苯氧基。即,即使手性识别效率随CSP的不同而不同,包含2,6-二甲基苯氧基,3,4-二甲基苯氧基,3-甲基苯氧基,4-甲基苯氧基和简单的苯氧基的美西律类似物在三个CSP上也能很好地拆分。但是,含2-甲基苯氧基的美西律类似物根本不被溶解或仅被轻微溶解。在这三种CSP中,发现CSP