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

3-(1-Methylethyl)-1-β-D-ribofuranosyl-1H-pyrazolo[3,4-d]pyrimidin-4-amine

3-(1-Naphthalenylmethyl)-1-(2,3,5-tri-O-benzoyl-β-D-ribofuranosyl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine

3-(Phenylmethyl)-1-(2,3,5-tri-O-benzoyl-β-D-ribofuranosyl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine

3-Phenyl-1-(2,3,5-tri-O-benzoyl-β-D-ribofuranosyl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine

3-(1-Methylethyl)-1-(2,3,5-tri-O-benzoyl-β-D-ribofuranosyl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine

Thymidine, 3′-de(phosphinicooxy)thymidylylimino(3,4-dioxo-1-cyclobutene-1,2-diyl)imino-(3′→5′)-5′-deoxy-

Thymidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-3′-de(phosphinicooxy)thymidylylimino(3,4-dioxo-1-cyclobutene-1,2-diyl)imino-(3′→5′)-5′-deoxy-, 3′-[2-cyanoethyl bis(1-methylethyl)phosphoramidite]

Thymidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-3′-de(phosphinicooxy)thymidylylimino(3,4-dioxo-1-cyclobutene-1,2-diyl)imino-(3′→5′)-5′-deoxy-

Thymidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-3′-deoxy-3′-[(2-ethoxy-3,4-dioxo-1-cyclobuten-1-yl)amino]-

Thymidine, 5′-O-[9-(4-methyl-3-nitrophenyl)-9H-thioxanthen-9-yl]-

Thymidine, 5′-O-[3-methoxy-9-(4-methoxyphenyl)-9H-thioxanthen-9-yl]-

Thymidine, 5′-O-(2,7-dibromo-9-phenyl-9H-thioxanthen-9-yl)-

Thymidine, 5′-O-(3-methoxy-9-phenyl-9H-thioxanthen-9-yl)-

Thymidine, 5′-O-[9-(3-methoxyphenyl)-9H-thioxanthen-9-yl]-

Thymidine, 5′-O-[9-(3-methyl-4-nitrophenyl)-9H-thioxanthen-9-yl]-

Thymidine, 5′-O-[9-(4-fluorophenyl)-9H-thioxanthen-9-yl]-

Thymidine, 5′-O-[9-(3,4-dimethoxyphenyl)-9H-thioxanthen-9-yl]-

Thymidine, 5′-O-[9-(4-methylphenyl)-9H-thioxanthen-9-yl]-

Thymidine, 5′-O-[9-(3,5-dimethoxyphenyl)-9H-thioxanthen-9-yl]-