Evaluation of the Edman degradation product of vancomycin bonded to core-shell particles as a new HPLC chiral stationary phase
作者:Garrett Hellinghausen、Diego A. Lopez、Jauh T. Lee、Yadi Wang、Choyce A. Weatherly、Abiud E. Portillo、Alain Berthod、Daniel W. Armstrong
DOI:10.1002/chir.22985
日期:2018.9
macrocyclic glycopeptide‐based chiral stationary phase (CSP), prepared via Edman degradation of vancomycin, was evaluated as a chiral selector for the first time. Its applicability was compared with other macrocyclic glycopeptide‐based CSPs: TeicoShell and VancoShell. In addition, another modified macrocyclic glycopeptide‐based CSP, NicoShell, was further examined. Initial evaluation was focused on the complementary
通过对万古霉素的Edman降解制备的修饰的基于大环糖肽的手性固定相(CSP)被首次评估为手性选择剂。将其适用性与其他基于大环糖肽的CSP(TeicoShell和VancoShell)进行了比较。此外,还进一步检查了另一种基于大环糖肽的修饰CSP NicoShell。最初的评估集中在与这些糖肽的互补行为上。根据以前的工作,使用了一种筛选方法,用于对50种手性化合物的对映体分离,其中包括氨基酸,农药,兴奋剂和多种药物。使用表面多孔(核-壳)颗粒载体可实现快速有效的手性分离。总体,万古霉素埃德曼降解产物(EDP)与TeicoShell类似,在极性离子模式下对酸性化合物具有高对映选择性。使用液相色谱-质谱联用EDP同时分离5种外消旋脯氨酸的对映异构体,时间约为3分钟。其他亮点包括同时用VancoShell液相色谱分离rac-amphetamine和rac-methamphetamine,用Nico