A ring-closing metathesis based synthesis of bicyclic nucleosides locked in S-type conformations by hydroxyl functionalised 3′,4′-trans linkages
作者:Morten Freitag、Helena Thomasen、Nanna K Christensen、Michael Petersen、Poul Nielsen
DOI:10.1016/j.tet.2004.03.019
日期:2004.4
introduced in this nucleoside reveals a large potential for further derivatisation, and as the first example, a stereoselective dihydroxylation followed by deprotection afforded a multihydroxylated bicyclicnucleoside. The configuration and conformational behaviour was determined by NMR spectroscopy and ab initio calculations, and both this bicyclicnucleoside and its unsaturated analogue were found to