Chromatographic Resolution of <i>α</i>
-Amino Acids by (<i>R</i>
)-(3,3'-Halogen Substituted-1,1'-binaphthyl)-20-crown-6 Stationary Phase in HPLC
作者:Peng Wu、Yuping Wu、Junhui Zhang、Zhenyu Lu、Mei Zhang、Xuexian Chen、Liming Yuan
DOI:10.1002/cjoc.201600664
日期:2017.7
stationary phases (CSPs) for high‐performance liquid chromatography were prepared from R‐(3,3'‐halogen substituted‐1,1'‐binaphthyl)‐20‐crown‐6 (halogen = Cl, Br and I). The experimental results showed that R‐(3,3'‐dibromo‐1,1'‐binaphthyl)‐20‐crown‐6 (CSP‐1) possesses more prominent enantioselectivity than the two other halogen‐substituted crown ether derivatives. All twenty‐one α‐amino acids have different
从R-(3,3'-卤素取代-1,1'-联萘基)-20-皇冠-6(卤素= Cl,Br和I)制备了三个用于高效液相色谱的新手性固定相(CSP ) 。实验结果表明,R-(3,3'-dibromo-1,1'-联萘基)-20-crown-6(CSP -1)比其他两个卤素取代的冠醚衍生物具有更突出的对映选择性。在室温下,所有二十一个α-氨基酸在基于R-(3,3'-二溴-1,1'-联萘基)-20-皇冠-6-基CSP -1上具有不同的分离度。CSP -1的对映选择性也优于某些商业R-(1,1'-联萘基)-20-皇冠-6衍生物。在相同条件下对天冬酰胺,苏氨酸,脯氨酸,精氨酸,丝氨酸,组氨酸的分离条件下,分离因子(α)和分离度(R s)均优于市售基于冠醚的CSP [Daicel的CROWNPAK CR(+)]。和缬氨酸,不能用商业CR(+)分开。这项研究证明了R-(3,3'-dibromo-1,1'-联萘)-