3-(2-Deoxy-β-D-erythro-pentofuranosyl)-6-(2-phenylethynyl)furo[2,3-d]pyrimidin-2(3H)-one

3-(2-Deoxy-β-D-erythro-pentofuranosyl)-6-[2-(4-pentylphenyl)ethynyl]furo[2,3-d]pyrimidin-2(3H)-one

3-(2-Deoxy-β-D-erythro-pentofuranosyl)-6-[2-(4-propylphenyl)ethynyl]furo[2,3-d]pyrimidin-2(3H)-one

(2R,3S,5R)-5-[5-[2-(5-Butyl-2-pyridinyl)ethynyl]-3,4-dihydro-2,4-dioxo-1(2H)-pyrimidinyl]tetrahydro-2-[[(4-methylbenzoyl)oxy]methyl]-3-furanyl 4-methylbenzoate

Uridine, 2'-deoxy-5-[2-[6-(1-pentyn-1-yl)-3-pyridinyl]ethynyl]-, 3',5'-bis(4-methylbenzoate)

Uridine, 2'-deoxy-5-[2-(6-hexyl-3-pyridinyl)ethynyl]-, 3',5'-bis(4-methylbenzoate)

(2R,3S,5R)-5-[5-[2-(5-Hexyl-2-pyridinyl)ethynyl]-3,4-dihydro-2,4-dioxo-1(2H)-pyrimidinyl]tetrahydro-2-[[(4-methylbenzoyl)oxy]methyl]-3-furanyl 4-methylbenzoate

(2R,3S,5R)-5-[3,4-Dihydro-2,4-dioxo-5-[2-(5-pentyl-2-pyridinyl)ethynyl]-1(2H)-pyrimidinyl]tetrahydro-2-[[(4-methylbenzoyl)oxy]methyl]-3-furanyl 4-methylbenzoate

Uridine, 2'-deoxy-5-[2-(6-pentyl-3-pyridinyl)ethynyl]-, 3',5'-bis(4-methylbenzoate)

Uridine, 2'-deoxy-5-[2-(5-pentyl-2-pyrimidinyl)ethynyl]-, 3',5'-bis(4-methylbenzoate)

2'-Deoxy-5-[2-[6-(1-pentyn-1-yl)-3-pyridinyl]ethynyl]uridine

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

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

Uridine, 2'-deoxy-5-[2-(5-hexyl-2-pyrimidinyl)ethynyl]-, 3',5'-bis(4-methylbenzoate)

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

5'-[[(3S)-3-Amino-3-carboxypropyl]diseleno]-5'-deoxyadenosine

1-[2-Deoxy-3,5-bis-O-(4-methylbenzoyl)-α-D-erythro-pentofuranosyl]-1H-benzimidazole

4-[2-[1-(2-Deoxy-β-D-erythro-pentofuranosyl)-1,2,3,4-tetrahydro-2,4-dioxo-5-pyrimidinyl]ethynyl]-L-phenylalanine

1-[2-Deoxy-3,5-bis-O-(4-methylbenzoyl)-β-D-erythro-pentofuranosyl]-1H-benzimidazole

4-[2-[6-Amino-9-(2-deoxy-β-D-erythro-pentofuranosyl)-9H-purin-8-yl]ethynyl]-L-phenylalanine