1-(2-Deoxy-β-L-erythro-pentofuranosyl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine

2-[2-Deoxy-3,5-bis-O-(4-methylbenzoyl)-β-L-erythro-pentofuranosyl]-4-methoxy-2H-pyrazolo[3,4-d]pyrimidine

1-[2-Deoxy-3,5-bis-O-(4-methylbenzoyl)-β-L-erythro-pentofuranosyl]-4-methoxy-1H-pyrazolo[3,4-d]pyrimidine

4-Amino-7-(2-deoxy-β-L-erythro-pentofuranosyl)-1,7-dihydro-2H-pyrrolo[2,3-d]pyrimidin-2-one

2-Amino-7-(2-deoxy-β-L-erythro-pentofuranosyl)-1,7-dihydro-4H-pyrrolo[2,3-d]pyrimidine-4-thione

7-(2-Deoxy-β-L-erythro-pentofuranosyl)-7H-pyrrolo[2,3-d]pyrimidine-2,4-diamine

4-Chloro-7-(2-deoxy-β-L-erythro-pentofuranosyl)-7H-pyrrolo[2,3-d]pyrimidin-2-amine

2-Amino-7-(2-deoxy-β-L-erythro-pentofuranosyl)-1,7-dihydro-4H-pyrrolo[2,3-d]pyrimidin-4-one

4-Chloro-7-[2-deoxy-3,5-bis-O-(4-methylbenzoyl)-β-L-erythro-pentofuranosyl]-7H-pyrrolo[2,3-d]pyrimidin-2-amine

Thymidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-, 3′-(dihydrogen phosphorodiselenoate)

Thymidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-, 3′-[O-(9H-fluoren-9-ylmethyl) hydrogen phosphorodiselenoate]

Thymidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-, 3′-[O-(9H-fluoren-9-ylmethyl) hydrogen phosphoroselenothioate]

Thymidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-, 3′-(hydrogen phosphorofluoridoselenoate)

Thymidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-, 3′-[O-(9H-fluoren-9-ylmethyl) phosphorofluoridoselenoate]

Thymidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-, 3′-(dihydrogen phosphoroselenoate)

Thymidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-, 3′-[O-(9H-fluoren-9-ylmethyl) hydrogen phosphoroselenoate]

Thymidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-, 3′-[O-(9H-fluoren-9-ylmethyl) phosphorochloridoselenoate]

3′-Adenylic acid, N-benzoyl-5′-O-[(2-cyanoethoxy)[3-ethoxy-2-(ethoxycarbonyl)-2-(hydroxymethyl)-3-oxopropoxy]phosphinyl]-P-(2-cyanoethyl)adenylyl-(3′→5′)-P-(2-cyanoethyl)-2′-O-methyluridylyl-(3′→5′)-N-benzoyl-2′-O-methyl-, 2-[(10-carboxydecyl)dithio]ethyl 2-cyanoethyl ester

Methyl 1-[2-O-acetyl-5-O-benzoyl-3-[(benzoyloxy)methyl]-3-deoxy-β-D-ribofuranosyl]-1H-1,2,4-triazole-3-carboxylate

1-[3-Deoxy-3-(hydroxymethyl)-β-D-ribofuranosyl]-1H-1,2,4-triazole-3-carboxamide