Uridine, 2'-deoxy-3',5'-O-[1,1,3,3-tetrakis(1-methylethyl)-1,3-disiloxanediyl]-5-[[4-(triphenylmethyl)phenyl]ethynyl]-

Adenosine, 2-[(2-hydroxytricyclo[3.3.1.13,7]dec-2-yl)ethynyl]-

Adenosine, 3',5'-O-[1,1,3,3-tetrakis(1-methylethyl)-1,3-disiloxanediyl]-8-[(trimethylsilyl)ethynyl]-

Uridine, 5-(bromoethynyl)-3'-deoxy-

Uridine, 5-(bromoethynyl)-

7H-Pyrrolo[2,3-d]pyrimidine-2,4-diamine, 7-β-D-ribofuranosyl-5-[(trimethylsilyl)ethynyl]-

Adenosine, N-(1-ethylpropyl)-2-[[(1S,3R)-1-hydroxy-3-methylcyclohexyl]ethynyl]-

Adenosine, 8-(phenylethynyl)-3',5'-O-[1,1,3,3-tetrakis(1-methylethyl)-1,3-disiloxanediyl]-, 2'-(trifluoromethanesulfonate)

5'-O-[(2R,4S)-4-(2-Bromo-5-fluorophenyl)-2-oxido-1,3,2-dioxaphosphorinan-2-yl]-2'-C-methyladenosine

N6-Carboxymethyladenosine

5'-O-[(2R,4S)-4-(4-Chloro-3-fluorophenyl)-2-oxido-1,3,2-dioxaphosphorinan-2-yl]-2'-C-methyladenosine

5'-O-[(2R,4S)-4-(3,4-Dichlorophenyl)-2-oxido-1,3,2-dioxaphosphorinan-2-yl]-2'-C-methyladenosine

2,5-Dimethyl-1-β-D-ribofuranosyl-1H-benzimidazole

1-(2-Azido-2-deoxy-β-D-arabinofuranosyl)-5-ethynyl-2,4(1H,3H)-pyrimidinedione

Uridine, 5'-O-[bis(4-methoxyphenyl)phenylmethyl]-5-[[4-[[4-[[2,5-bis(pentyloxy)-4-[[4-[[2-(4-pyridinyl)ethyl]thio]phenyl]ethynyl]phenyl]ethynyl]-2,5-difluorophenyl]ethynyl]-2,5-difluorophenyl]ethynyl]-2'-deoxy-, 3'-(hydrogen butanedioate)

1-(3-O-Acetyl-5-O-benzoyl-2-deoxy-2-fluoro-α-D-arabinofuranosyl)-4-amino-5-ethynyl-2(1H)-pyrimidinone

2'-Deoxy-5-[2-[4-(triphenylmethyl)phenyl]ethynyl]uridine

Uridine, 3'-azido-2',3'-dideoxy-5-ethynyl-5'-O-[(4-methoxyphenyl)diphenylmethyl]-

Uridine, 2',3'-dideoxy-5-ethynyl-3'-fluoro-5'-O-[(4-methoxyphenyl)diphenylmethyl]-

Guanosine, 8-[(4-chlorophenyl)ethynyl]-

Uridine, 2'-deoxy-5-[[4-[hydroxybis(4-methoxyphenyl)methyl]phenyl]ethynyl]-