1,2-di-O-acetyl-3,6-di-O-benzoyl-5-deoxy-D-ribo-hexofuranose

5-deoxy-1,2-O-isopropylidene-α-D-ribo-hexofuranose

5,6-dideoxy-1,2-O-isopropylidene-3-O-p-tolylsulfonyl-α-D-ribo-hex-5-enofuranose

1,2,6-tri-O-acetyl-5-deoxy-3-O-p-tolylsulfonyl-D-xylo-hexofuranose

[2-[2,2-dimethyl-6-(4-methylphenyl)sulfonyloxy-3a,5,6,6a-tetrahydrofuro[2,3-d][1,3]dioxol-5-yl]-2-(4-methylphenyl)sulfonyloxyethyl] 4-methylbenzenesulfonate