1-(3,5-Di-O-benzoyl-2-C-ethynyl-β-D-arabinofuranosyl)-2,4(1H,3H)-pyrimidinedione

4′-C-Fluoro-2′-C-1-propyn-1-yluridine 5′-(tetrahydrogen triphosphate)

N,[[P(S),2′R]-2′-Deoxy-2′-fluoro-P-phenyl-2′-(1-propyn-1-yl)-5′-uridylyl]-L-alanine 1-methylethyl ester

N-[[P(S),2′R]-2′-Deoxy-2′-ethynyl-2′-fluoro-P-phenyl-5′-uridylyl]-L-alanine 1-methylethyl ester

1-[(2R,3aS,4R,6R,6aS)-Hexahydro-4-hydroxy-6-[(4-nitrobenzoyl)oxy]-2H-cyclopenta[b]furan-2-yl]-5-methyl-2,4(1H,3H)-pyrimidinedione

1-[(2R,3aR,4R,6R,6aS)-4-[[(1,1-Dimethylethyl)diphenylsilyl]oxy]hexahydro-6-[(4-nitrobenzoyl)oxy]-2H-cyclopenta[b]furan-2-yl]-5-methyl-2,4(1H,3H)-pyrimidinedione

(2R,3aR,4R,6R,6aS)-2-[6-(Benzoylamino)-9H-purin-9-yl]-6-[bis(4-methoxyphenyl)phenylmethoxy]hexahydro-2H-cyclopenta[b]furan-4-yl 2-cyanoethyl N,N-bis(1-methylethyl)phosphoramidite

1-[(2S,3aS,4R,6R,6aS)-Hexahydro-4-hydroxy-6-[(4-nitrobenzoyl)oxy]-2H-cyclopenta[b]furan-2-yl]-5-methyl-2,4(1H,3H)-pyrimidinedione

1-[(2S,3aR,4R,6R,6aS)-4-[[(1,1-Dimethylethyl)diphenylsilyl]oxy]hexahydro-6-[(4-nitrobenzoyl)oxy]-2H-cyclopenta[b]furan-2-yl]-5-methyl-2,4(1H,3H)-pyrimidinedione

(2S,3aS,4R,6R,6aS)-4-[Bis(4-methoxyphenyl)phenylmethoxy]-2-[2-[[(dimethylamino)methylene]amino]-1,6-dihydro-6-oxo-9H-purin-9-yl]hexahydro-2H-cyclopenta[b]furan-6-yl 2-cyanoethyl [P(S)]-N,N-bis(1-methylethyl)phosphoramidite

(2S,3aS,4R,6R,6aS)-4-[Bis(4-methoxyphenyl)phenylmethoxy]-2-[2-[[(dimethylamino)methylene]amino]-1,6-dihydro-6-oxo-9H-purin-9-yl]hexahydro-2H-cyclopenta[b]furan-6-yl 2-cyanoethyl [P(R)]-N,N-bis(1-methylethyl)phosphoramidite

N′-[9-[(2S,3aS,4R,6R,6aS)-4-[Bis(4-methoxyphenyl)phenylmethoxy]hexahydro-6-hydroxy-2H-cyclopenta[b]furan-2-yl]-6,9-dihydro-6-oxo-1H-purin-2-yl]-N,N-dimethylmethanimidamide

2-Amino-9-[(2S,3aS,4R,6R,6aS)-4-[bis(4-methoxyphenyl)phenylmethoxy]hexahydro-6-hydroxy-2H-cyclopenta[b]furan-2-yl]-1,9-dihydro-6H-purin-6-one