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

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

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

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