(-)-(1R,2R,3S,4R)-4-amino-2,3-dihydroxy-1-(hydroxymethyl)cyclopentane
1-((1R,2S,3R,4R)-2,3-Dihydroxy-4-hydroxymethyl-cyclopentyl)-1H-[1,2,4]triazole-3-carboxylic acid ethyl ester
N-1-{(1R,2S,3R,4R)-2-(methoxymethyloxy)-3-methoxy-4-(hydroxymethyl)cyclopentyl}-5'-O-{bis(phenylthio)phosphoryl}-2',3'-O-isopropylideneadenosine
Toluene-4-sulfonic acid (3aR,4R,6R,6aS)-6-tert-butoxycarbonylamino-2,2-dimethyl-tetrahydro-cyclopenta[1,3]dioxol-4-ylmethyl ester