3H-Imidazo[2,1-i]purine, 3-(2-deoxy-2-fluoro-3,5-di-O-phosphono-β-D-ribofuranosyl)-, cyclic diester with (1S,2R,3R)-3-(6-amino-9H-purin-9-yl)-1,2-cyclobutanedimethanol

N-Benzoyl-2′-deoxy-3′-O-[(1,1-dimethylethyl)diphenylsilyl]-2′-fluoro-5′-O-[(3aS,6R,7aS)-hexahydro-3a-methyl-6-(1-methylethenyl)-2-sulfido-1,3,2-benzoxathiaphosphol-2-yl]adenosine

N-Benzoyl-2′-deoxy-3′-O-[(1,1-dimethylethyl)diphenylsilyl]-2′-fluoroadenosine

N-Benzoyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-3′-O-[(1,1-dimethylethyl)diphenylsilyl]-2′-fluoroadenosine

3-[2-O-[[[(1S,2R,3R)-3-(6-Chloro-9H-purin-9-yl)-2-(hydroxymethyl)cyclobutyl]methoxy](2-cyanoethoxy)phosphinothioyl]-3-deoxy-3-fluoro-β-D-ribofuranosyl]-3H-imidazo[2,1-i]purine

3-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-2-O-[[[(1S,2R,3R)-3-(6-chloro-9H-purin-9-yl)-2-[(triphenylmethoxy)methyl]cyclobutyl]methoxy](2-cyanoethoxy)phosphinothioyl]-3-deoxy-3-fluoro-β-D-ribofuranosyl]-3H-imidazo[2,1-i]purine

3-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-2-O-[[bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]-3-deoxy-3-fluoro-β-D-ribofuranosyl]-3H-imidazo[2,1-i]purine

3-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-3-deoxy-3-fluoro-β-D-ribofuranosyl]-3H-imidazo[2,1-i]purine

3-(3-Deoxy-3-fluoro-β-D-ribofuranosyl)-3H-imidazo[2,1-i]purine