Adenosine, 2-amino-2'-O-methyl-3',5'-O-[1,1,3,3-tetrakis(1-methylethyl)-1,3-disiloxanediyl]- (9CI)

3'-Deoxy-3'-fluorouridine 5'-(trihydrogen diphosphate)

6-(Aminocarbonyl)-2'-deoxy-2'-fluorouridine

6-Azido-2'-deoxy-2'-fluorouridine

2'-Deoxy-2'-fluoro-6-iodouridine

5'-O-[(1,1-Dimethylethyl)diphenylsilyl]-5-fluorouridine

3'-Azido-2',3'-dideoxy-2'-fluorouridine

2',5'-Dideoxy-5'-(6,7-dihydropyrazolo[1,5-a]pyrazin-5(4H)-yl)-2',2'-difluorocytidine

2',5'-Dideoxy-5'-(4,6-dihydro-1-methylpyrrolo[3,4-c]pyrazol-5(1H)-yl)-2',2'-difluorocytidine

L-Alanine, N-(hydroxyphenoxyphosphinyl)-, methyl ester, 5′-ester with 4-(2-furanyl)-7-[2,3-O-(1-methylethylidene)-β-D-ribofuranosyl]-7H-pyrrolo[2,3-d]pyrimidine

5'-[[(2-Chlorophenyl)methyl]amino]-5'-deoxy-5-fluorouridine

5'-Deoxy-5'-[[(2,6-dichlorophenyl)methyl]amino]-5-fluorouridine

5'-[[(2-Chloro-6-fluorophenyl)methyl]amino]-5'-deoxy-5-fluorouridine

5'-[[(4-Chlorophenyl)methyl]amino]-5'-deoxy-5-fluorouridine

2'-Deoxy-3'-O-(1,3-dihydro-1,3- dioxo-2H-isoindol-2-yl)-Guanosine

N-[16-[(6-Amino-3-acridinyl)amino]-1,13,16-trioxo-3,6,9-trioxa-12-azahexadec-1-yl]-2'-deoxy-2',2'-difluorocytidine

N,N''-[[[5-[[2-[2-[2-[4-[5-(4-Methyl-1-piperazinyl)[2,5'-bi-1H-benzimidazol]-2'-yl]phenoxy]ethoxy]ethoxy]ethyl]amino]-5-oxopentyl]imino]bis[3,1-propanediyldithio(1-oxo-3,1-propanediyl)]]bis[2'-deoxy-2',2'-difluorocytidine]

N-(4-Amino-2-methylbenzoyl)-2'-deoxy-2',2'-difluorocytidine

N-(4-Amino-2-fluorobenzoyl)-2'-deoxy-2',2'-difluorocytidine

N-(4-Amino-2-chlorobenzoyl)-2'-deoxy-2',2'-difluorocytidine