1-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-3-O-[[bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]-2-deoxy-α-D-erythro-pentofuranosyl]-4-(9H-fluoren-2-ylamino)-5-methyl-2(1H)-pyrimidinone

1-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-2-deoxy-α-D-erythro-pentofuranosyl]-4-(9H-fluoren-2-ylamino)-5-methyl-2(1H)-pyrimidinone

1-[3-O-Acetyl-5-O-[bis(4-methoxyphenyl)phenylmethyl]-2-deoxy-α-D-erythro-pentofuranosyl]-4-(9H-fluoren-2-ylamino)-5-methyl-2(1H)-pyrimidinone

1-[3-O-Acetyl-5-O-[bis(4-methoxyphenyl)phenylmethyl]-2-deoxy-α-D-erythro-pentofuranosyl]-1,2-dihydro-5-methyl-2-oxo-4-pyrimidinyl 2,4,6-trimethylbenzenesulfonate

Cytidine, 2′-deoxy-N-9H-fluoren-2-yl-5-methyl-

Cytidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-5-methyl-N-[2-(phenylamino)phenyl]-, 3′-[2-cyanoethyl bis(1-methylethyl)phosphoramidite]

Cytidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-5-methyl-N-[2-(phenylmethyl)phenyl]-, 3′-[2-cyanoethyl bis(1-methylethyl)phosphoramidite]

Cytidine, 2′-deoxy-5-methyl-N-[2-(phenylamino)phenyl]-

Cytidine, 2′-deoxy-5-methyl-N-[2-(phenylmethyl)phenyl]-

Cytidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-N-9H-fluoren-2-yl-5-methyl-, 3′-[2-cyanoethyl bis(1-methylethyl)phosphoramidite]

Cytidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-5-methyl-N-[2-(phenylamino)phenyl]-

Cytidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-5-methyl-N-[2-(phenylmethyl)phenyl]-

Cytidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-N-9H-fluoren-2-yl-5-methyl-

Cytidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-5-methyl-N-[2-(phenylamino)phenyl]-, 3′-acetate

Cytidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-5-methyl-N-[2-(phenylmethyl)phenyl]-, 3′-acetate

Cytidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-N-9H-fluoren-2-yl-5-methyl-, 3′-acetate

Cytidine, thymidylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-thymidylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-2′-deoxy-

Uridine, 5′-amino-3′,5′-dideoxy-3′-(2-methoxy-2-oxoethyl)-5-methyl-

Uridine, 5′-azido-3′,5′-dideoxy-3′-(2-methoxy-2-oxoethyl)-5-methyl-

Uridine, 3′-deoxy-3′-(2-methoxy-2-oxoethyl)-5-methyl-, 2′-acetate 5′-benzoate