C-glycosphingolipid precursors via iodocyclization of homoallyic trichloroacetimidates

Carbohydrate Research
Ahmad S Altiti, David R Mootoo

Abstract

The iodocyclization of homoallylic trichloroacetimidates derived from α-C-allyl galactoside were investigated. In line with the stereochemical trend observed for less substituted non-glycosylated frameworks, E and Z substrates delivered stereoselectively the 1,3-anti and 1,3-syn amino alcohol motifs, respectively. These products are advanced precursors to C-glycosides of the potent immunostimulatory glycolipid KRN7000.

References

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