Chiral Supercritical Fluid Chromatography in the Preparation of Enantiomerically Pure (<i>S</i>)-(+)-<i>tert</i>-Butyl-3-hydroxyazepane-1-carboxylate
作者:Jean-Christophe Carry、Eric Brohan、Sébastien Perron、Pierre-Eric Bardouillet
DOI:10.1021/op400274b
日期:2013.12.20
racemate, using chiral supercritical fluid chromatography (SFC). After optimization of the experimental chromatographic conditions, preparative scale separation using a stacked injections protocol led to 10.5 g of the dextrogyre enantiomer. Assignment of the absolute stereochemistry of the latter was accomplished by transforming (−)-tert-butyl-3-hydroxyazepane-1-carboxylate into known (R)-(−)-benzyl-3-hyd
我们在此报道了通过手性超临界流体色谱法(SFC)通过市售外消旋物的拆分,分离和表征了(S)-(+)-叔丁基-3-羟基氮杂环庚烷-1-甲酸叔丁酯。在优化实验色谱条件后,使用堆积进样方案进行制备性水垢分离,得到10.5 g右旋体对映体。后者的绝对立体化学的分配通过将(-)-叔丁基-3-羟基氮杂环庚烷-1-羧酸酯转化成已知的(R)-(-)-苄基-3-羟基氮杂环庚烷-1-羧酸酯来完成。