The Total Synthesis of (−)-7-Deoxyloganin via <i>N</i>-Heterocyclic Carbene Catalyzed Rearrangement of α,β-Unsaturated Enol Esters
作者:Lisa Candish、David W. Lupton
DOI:10.1021/ol101983h
日期:2010.11.5
The diastereoselective N-heterocyclic carbene (NHC) catalyzed rearrangement of α,β-unsaturated enolester (S)-2b has been used to assemble dihydropyranone (S)-3b, a material embodying the bicyclic core of the iridoid family of natural products. Elaboration of this intermediate, by chemoselective reduction followed by stereoselective β-glycosylation, has allowed the total synthesis of (−)-7-deoxyloganin