The relative and absolute configurations of stereocenters in caryophyllose

The complete stereochemistry of the monosacccharide 3,6,10-trideoxy-4-C-[(R)-1-hydroxyethyl]-d-erythro-d-gulo-decose, named caryophyllose, obtained from the lipopolysaccharide fraction of Pseudomonas caryophylli is reported. The relative stereochemistry was inferred by 1H NMR analysis and the absolute configuration was independently elucidated by Mosherʹs and Exciton Chiral Coupling methods.