(1'S,3'R,4'R,5'R,7'R)-N2-isobutyryl-9-{4'-acetoxy-1'-phenyl-3'-(tert-butyldiphenylsilyloxymethyl)-2',6'-dioxabicyclo[3.3.0]oct-7'-yl}guanine

(S)-1-[(3aS,4S,6S,6aS)-4-(tert-Butyl-diphenyl-silanyloxy)-2,2-dimethyl-6-vinyl-dihydro-furo[3,4-d][1,3]dioxol-3a-yl]-ethanol

1-(2',3'-O-isopropylidene-β-D-ribofuranosyl)-4-nitro-1H-imidazole

(3AS,4S,6R,6AR)-6-Methoxy-2,2-dimethyl-tetrahydro-furo[3,4-d][1,3]dioxole-4-carboxylic acid amide

(E)-(3aS,4S,7S,11aR)-7-(4-Methoxy-benzyloxy)-2,2-dimethyl-4-propyl-3a,4,7,8,9,11a-hexahydro-1,3,5-trioxa-cyclopentacyclodecen-6-one