[(2R)-2-[(3aR,5S,6aR)-2,2-dimethyl-3a,5,6,6a-tetrahydrofuro[2,3-d] [1,3]dioxol-5-yl]-2-hydroxy-ethyl]4-methylbenzenesulfonate

5,6-Di-O-acetyl-3-deoxy-1,2-O-isopropylidene-α-D-ribo-hexofuranose