1-(1-butyl)-5-O-tert-butyldimethylsilyl-2,3-O-isopropylidene-D-ribitol

N-[6-chloro-9-[(3aS,4S,6aS)-2,2-dimethyl-6a-trityloxymethyl-4,6a-dihydro-3aH-cyclopenta[1,3]dioxol-4-yl]-9H-purin-2-yl]acetamide

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

1,4-di-O-benzoyl-2,3-O-isopropylidene-D-ribitol

(4R,5S)-(-)-3-[(benzyloxy)methyl]-4,5-O-isopropylidene-2-cyclopenten-1-ol