(3S,5R)-5-(4-Amino-5-fluoro-7H-pyrrolo[2,3-d]pyrimidin-7-yl)-3-[[(1,1-dimethylethyl)dimethylsilyl]oxy]dihydro-2,2(3H)-furandimethanol

7-[2-Deoxy-3-O-[(1,1-dimethylethyl)dimethylsilyl]-β-D-erythro-pentofuranosyl]-5-fluoro-7H-pyrrolo[2,3-d]pyrimidin-4-amine

7-[2-Deoxy-3,5-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-β-D-erythro-pentofuranosyl]-5-fluoro-7H-pyrrolo[2,3-d]pyrimidin-4-amine

(3S,5R)-5-(4-Amino-7H-pyrrolo[2,3-d]pyrimidin-7-yl)-3-[[(1,1-dimethylethyl)dimethylsilyl]oxy]dihydro-2,2(3H)-furandimethanol

7-[2-Deoxy-3-O-[(1,1-dimethylethyl)dimethylsilyl]-β-D-erythro-pentofuranosyl]-7H-pyrrolo[2,3-d]pyrimidin-4-amine

7-[2-Deoxy-3,5-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-β-D-erythro-pentofuranosyl]-7H-pyrrolo[2,3-d]pyrimidin-4-amine

Cytidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-N-[[bis(2-methylpropyl)amino]methylene]-2′-deoxy-5-[5-(4,4-dimethyl-2-oxido-4H-1,3,2-benzodioxaphosphorin-2-yl)-1-pentyn-1-yl]-, 3′-[2-cyanoethyl N,N-bis(1-methylethyl)phosphoramidite]

5′-O-[Bis(4-methoxyphenyl)phenylmethyl]-N-[[bis(2-methylpropyl)amino]methylene]-2′-deoxy-5-[5-(4,4-dimethyl-2-oxido-4H-1,3,2-benzodioxaphosphorin-2-yl)-1-pentyn-1-yl]cytidine

Cytidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-N-[[bis(2-methylpropyl)amino]methylene]-2′-deoxy-5-[4-[(4,4-dimethyl-2-oxido-4H-1,3,2-benzodioxaphosphorin-2-yl)oxy]-1-butyn-1-yl]-, 3′-[2-cyanoethyl N,N-bis(1-methylethyl)phosphoramidite]

5′-O-[Bis(4-methoxyphenyl)phenylmethyl]-N-[[bis(2-methylpropyl)amino]methylene]-2′-deoxy-5-[4-[(4,4-dimethyl-2-oxido-4H-1,3,2-benzodioxaphosphorin-2-yl)oxy]-1-butyn-1-yl]cytidine

Cytidine, 5-[4-[[bis[[4-(2,2-dimethyl-1-oxopropoxy)phenyl]methoxy]phosphinyl]oxy]-1-butyn-1-yl]-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-N-[[bis(2-methylpropyl)amino]methylene]-2′-deoxy-, 3′-[2-cyanoethyl N,N-bis(1-methylethyl)phosphoramidite]

5-[4-[[Bis[[4-(2,2-dimethyl-1-oxopropoxy)phenyl]methoxy]phosphinyl]oxy]-1-butyn-1-yl]-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-N-[[bis(2-methylpropyl)amino]methylene]-2′-deoxycytidine

Cytidine, 2′-deoxy-5-[4-(phosphonooxy)-1-butyn-1-yl]-, 3′-[2-cyanoethyl N,N-bis(1-methylethyl)phosphoramidite]

2′-Deoxy-5-(5-phosphono-1-pentyn-1-yl)cytidine 5′-(tetrahydrogen triphosphate)

2′-Deoxy-5-[4-(phosphonooxy)-1-butyn-1-yl]cytidine 5′-(tetrahydrogen triphosphate)

P-[5-[4-Amino-1-(2-deoxy-β-D-erythro-pentofuranosyl)-1,2-dihydro-2-oxo-5-pyrimidinyl]-4-pentyn-1-yl]phosphonic acid