(E)-3-((2R,3R,4R,5S)-3-Benzyloxy-4,5-dihydroxy-tetrahydro-furan-2-yl)-acrylic acid ethyl ester

((2R,3R,4R)-1-Benzyl-4-benzyloxy-3-hydroxy-pyrrolidin-2-yl)-acetic acid ethyl ester

3,5,7-tri-O-acetyl-6-(N-benzyloxycarbonylamino)-6-deoxy-1,2-O-isopropylidene-α-D-glycero-D-gluco-heptofuranose

3,5,7-tri-O-acetyl-6-(N-benzyloxycarbonylamino)-6-deoxy-1,2-O-isopropylidene-β-L-glycero-L-ido-heptofuranose

ethyl 6-azido-6-deoxy-3-O-benzyl-1,2-O-isopropylidene-α-D-glycero-D-gluco-heptofuranuronate