(3S,4S,5S)-5-((S)-2,2-dimethyl-1,3-dioxolan-4-yl)-4-hydroxy-2-oxotetrahydrofuran-3-yl trifluoromethanesulfonate

4-O-benzoyl-3-O-benzyl-1,2-O-isopropylidene-β-D-fructopyranose

5-azido-4-O-benzoyl-3-O-benzyl-5-deoxy-β-D-fructopyranose

4-O-benzoyl-3-O-benzyl-5-deoxy-5-iodo-1,2-O-isopropylidene-α-L-sorbopyranose