1-[(2R,3R,3aR,9bR)-3,3a,5,9b-Tetrahydro-3-hydroxy-2H-furo[3,2-c][2]benzopyran-2-yl]-2,4(1H,3H)-pyrimidinedione

3-((2-Aminoethyl)disulfanyl)propanoic acid

L-Valine, 5'-ester with 5-[(1E)-2-bromoethenyl]-3'-chloro-2',3'-dideoxyuridine

L-Valine, L-valyl-, 5'-ester with 5-[(1E)-2-bromoethenyl]-3'-chloro-2',3'-dideoxyuridine

L-Valine, N-[(1,1-dimethylethoxy)carbonyl]-L-valyl-, 3'-ester with 5'-azido-5-[(1E)-2-bromoethenyl]-2',5'-dideoxyuridine

1-[(2R,4S,5S)-4-Azido-5-(fluoromethyl)tetrahydro-2-furanyl]-5-[(1E)-2-bromoethenyl]-2,4(1H,3H)-pyrimidinedione

1-(5-Bromo-2,5-dideoxy-2-fluoro-β-D-arabinofuranosyl)-5-[(1E)-2-bromoethenyl]-2,4(1H,3H)-pyrimidinedione

5'-S-(3-Sulfopropyl)-N-[(ethylamino)carbonyl]-2',3'-O-[(1S,2E)-3-phenyl-2-propen-1-ylidene]-5'-thioadenosine

2,4(1H,3H)-Pyrimidinedione, 1-[(2R,4S,5R)-5-[2-[bis(4-methoxyphenyl)phenylmethoxy]ethyl]-4-[[[2-[(2R,3S,5R)-5-(3,4-dihydro-2,4-dioxo-1(2H)-pyrimidinyl)-3-[(ethylthio)methyl]tetrahydro-2-furanyl]ethyl]thio]methyl]tetrahydro-2-furanyl]-

2,4(1H,3H)-Pyrimidinedione, 1-[(2R,4S,5R)-4-[[[2-[(2R,3S,5R)-5-(3,4-dihydro-2,4-dioxo-1(2H)-pyrimidinyl)-3-[(ethylthio)methyl]tetrahydro-2-furanyl]ethyl]thio]methyl]tetrahydro-5-[2-[(methylsulfonyl)oxy]ethyl]-2-furanyl]-

1-[(2R,4R,5R)-4,5-Bis(acetyloxy)-3-bromotetrahydro-5-[2-(triethylsilyl)ethynyl]-2-furanyl]-2,4(1H,3H)-pyrimidinedione

1-[(1S,3R,5S)-1-[[[(1,1-Dimethylethyl)dimethylsilyl]oxy]methyl]-6,6-difluoro-2-oxabicyclo[3.1.0]hex-3-yl]-3-[(4-methoxyphenyl)methyl]-2,4(1H,3H)-pyrimidinedione

1-[(1R,5S,7S,8S)-5-(Hydroxymethyl)-8-(phenylmethoxy)-3,6-dioxabicyclo[3.2.1]oct-7-yl]-5-methyl-2,4(1H,3H)-pyrimidinedione

1-[1-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-3-O-[[bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]-2-deoxy-β-D-erythro-pentofuranosyl]-7-methyl-1H-imidazo[4,5-c]pyridin-4-yl]-3,3,4,4-tetramethyl-2,5-pyrrolidinedione

5'-O-[Bis(4-methoxyphenyl)phenylmethyl]-3'-deoxy-3'-[[(2S)-2-pyrrolidinylcarbonyl]amino]thymidine

Cytidine, N-benzoyl-5'-O-[bis(4-methoxyphenyl)phenylmethyl]-2'-deoxy-3'-O-[methyl[[6-(trifluoromethyl)-1H-benzotriazol-1-yl]oxy]phosphinothioyl]-

Adenosine, 5'-O-[bis(4-methoxyphenyl)phenylmethyl]-2'-deoxy-N-(diphenylacetyl)-3'-O-[methyl[[6-(trifluoromethyl)-1H-benzotriazol-1-yl]oxy]phosphinothioyl]-

Uridine, 5'-O-[bis(4-methoxyphenyl)phenylmethyl]-2'-O-[(1,1-dimethylethyl)dimethylsilyl]-5-ethynyl-, 3'-[2-cyanoethyl N,N-bis(1-methylethyl)phosphoramidite]