A Short and Highly Efficient Synthesis of <scp>l</scp>-Ristosamine and <scp>l</scp>-<i>epi</i>-Daunosamine Glycosides
作者:Feiqing Ding、Ronny William、Fei Wang、Jimei Ma、Li Ji、Xue-Wei Liu
DOI:10.1021/ol102891t
日期:2011.2.18
A highly efficient synthesis of l-ristosamine and l-epi-daunosamine glycosides via BF3·OEt2 promoted tandem hydroamination/glycosylation of 3,4-di-O-acetyl-6-deoxy-l-glucal and l-galactal has been developed. The new method proceeds in a completely stereocontrolled manner within a short reaction time. Preparation of a library of l-ristosamine and l-epi-daunosamine glycosides with potential biochemical