(2S,3R)-5-benzyl-2,3-O-isopropylidene-4-C-methylene-D-erytho-pentitol

(4R,5R)-5-(1-Benzyloxymethyl-vinyl)-2,2-dimethyl-[1,3]dioxolane-4-carbaldehyde

(3aR,4R,7R,8R,8aS)-4-Benzyloxymethyl-2,2-dimethyl-hexahydro-[1,3]dioxolo[4,5-c]oxepine-7,8-diol

3,6-anhydro-7-O-benzyl-2-deoxy-2-iodo-4,5-O-isopropylidene-D-altro-heptonate

3,6-anhydro-7-O-benzyl-2-deoxy-2-iodo-4,5-O-isopropylidene-D-allo-heptonate