Thymidine, 5′-O-[1-(diphenylmethoxy)-3,3,3-trimethyl-1-[(trimethylsilyl)oxy]-1-disiloxanyl]-3-(4-methoxybenzoyl)-, 3′-[2-cyanoethyl N,N-bis(1-methylethyl)phosphoramidite]

2′-Deoxy-5′-O-[1-(diphenylmethoxy)-3,3,3-trimethyl-1-[(trimethylsilyl)oxy]-1-disiloxanyl]-N-[(9H-fluoren-9-ylmethoxy)carbonyl]guanosine

N-[Bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-5′-O-[1-(diphenylmethoxy)-3,3,3-trimethyl-1-[(trimethylsilyl)oxy]-1-disiloxanyl]adenosine

2′-Deoxy-5′-O-[1-(diphenylmethoxy)-3,3,3-trimethyl-1-[(trimethylsilyl)oxy]-1-disiloxanyl]-N-[tris(4-methoxyphenyl)methyl]cytidine

5′-O-[1-(Diphenylmethoxy)-3,3,3-trimethyl-1-[(trimethylsilyl)oxy]-1-disiloxanyl]-3-(4-methoxybenzoyl)thymidine

Guanosine, 2′-deoxy-5′-O-(5,7-dihydro-6-oxido-6H-dibenzo[d,f][1,3,2]diazaphosphepin-6-yl)-N-(2-methyl-1-oxopropyl)-, 3′-(2-methylpropanoate)

Hydrouracil, 5,5-dibromo-6-hydroxy-1-β-D-ribofuranosyl-

Thymidine, 5′-O-[2-[4-(phenylmethoxy)phenoxy]ethyl]-

Thymidine, 5′-deoxy-5′-[[[4-[(4-nitrophenyl)methoxy]phenoxy]acetyl]amino]-

Thymidine, 5′-deoxy-5′-[[[4-(phenylmethoxy)phenoxy]acetyl]amino]-

1,5-Dihydro-6-methyl-1-β-D-ribofuranosyl-4H-pyrazolo[3,4-d]pyrimidine-4-selone

1,5-Dihydro-6-methyl-1-β-D-ribofuranosyl-4H-pyrazolo[3,4-d]pyrimidine-4-thione

1,5-Dihydro-6-methyl-1-(2,3,5-tri-O-acetyl-β-D-ribofuranosyl)-4H-pyrazolo[3,4-d]pyrimidine-4-thione

1,5-Dihydro-6-methyl-1-β-D-ribofuranosyl-4H-pyrazolo[3,4-d]pyrimidin-4-one

6-Methyl-1-β-D-ribofuranosyl-1H-pyrazolo[3,4-d]pyrimidin-4-amine

4-Chloro-6-methyl-1-(2,3,5-tri-O-acetyl-β-D-ribofuranosyl)-1H-pyrazolo[3,4-d]pyrimidine

3-Bromo-1,5-dihydro-1-β-D-ribofuranosyl-4H-pyrazolo[3,4-d]pyrimidine-4-selone

3-Bromo-4-chloro-1-(2,3,5-tri-O-benzoyl-β-D-ribofuranosyl)-1H-pyrazolo[3,4-d]pyrimidine

1,5-Dihydro-1-β-D-ribofuranosyl-4H-pyrazolo[3,4-d]pyrimidine-4-selone

β-D-arabino-Adenosine, 2′-deoxycytidylyl-(3′→5′)-