Acetic acid (3aR,4R,6R,6aS)-6-azido-2,2-dimethyl-tetrahydro-cyclopenta[1,3]dioxol-4-ylmethyl ester

N-1-{(1R,2S,3R,4R)-2-(methoxymethyloxy)-3-methoxy-4-(hydroxymethyl)cyclopentyl}-5'-O-(tert-butyldimethylsilyl)-2',3'-O-isopropylideneadenosine

(-)-(1R, 2S, 3R, 4R)-tert-butyl N-[2,3-dihydroxy-4-(hydroxymethyl)-1-cyclopentyl] carbamate

N-1-{(1R,2S,3R,4R)-2-(methoxymethyloxy)-3-methoxy-4-(hydroxymethyl)cyclopentyl}-5'-O-{bis(phenylthio)phosphoryl}-2',3'-O-isopropylideneadenosine

(1R,2R,3R,4R)-1-tert-butoxycarbonylamino-2-(methoxymethyloxy)-3-methoxy-4-hydroxymethylcyclopentane