5-Fluoro-1,6-dihydro-6-imino-1-(2,3,5-tri-O-benzoyl-β-D-ribofuranosyl)-4-pyrimidinamine

5-Chloro-1,6-dihydro-6-imino-1-(2,3,5-tri-O-benzoyl-β-D-ribofuranosyl)-4-pyrimidinamine

1,6-Dihydro-6-imino-1-(2,3,5-tri-O-benzoyl-β-D-ribofuranosyl)-4-pyrimidinamine

N,N-Diethyl-1-β-L-ribofuranosyl-1H-pyrazolo[4,3-d]pyrimidin-5-amine

Uridine 5′-(tetrahydrogen triphosphate), 5-[3-[[4-[3,6-bis(dimethylamino)xanthylium-9-yl]-3-carboxybenzoyl]amino]-1-propynyl]-3′-deoxy-, inner salt

Acetamide, N-[3-[2-amino-7-(3-deoxy-β-D-erythro-pentofuranosyl)-4,7-dihydro-4-oxo-1H-pyrrolo[2,3-d]pyrimidin-5-yl]-2-propynyl]-2,2,2-trifluoro-

4H-Pyrrolo[2,3-d]pyrimidin-4-one, 2-amino-7-(3-deoxy-β-D-erythro-pentofuranosyl)-1,7-dihydro-5-iodo-

4H-Pyrrolo[2,3-d]pyrimidin-4-one, 2-amino-7-[3-deoxy-2,5-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-β-D-erythro-pentofuranosyl]-1,7-dihydro-5-iodo-

4H-Pyrrolo[2,3-d]pyrimidin-4-one, 7-[3-deoxy-2,5-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-β-D-erythro-pentofuranosyl]-1,7-dihydro-5-iodo-2-(methylthio)-

7-[3-Deoxy-2,5-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-β-D-erythro-pentofuranosyl]-5-iodo-4-methoxy-2-(methylthio)-7H-pyrrolo[2,3-d]pyrimidine

7-[3-Deoxy-2,5-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-β-D-erythro-pentofuranosyl]-4-methoxy-2-(methylthio)-7H-pyrrolo[2,3-d]pyrimidine

7-[2,5-Bis-O-[(1,1-dimethylethyl)dimethylsilyl]-3-O-(1H-imidazol-1-ylthioxomethyl)-β-D-ribofuranosyl]-4-methoxy-2-(methylthio)-7H-pyrrolo[2,3-d]pyrimidine

7-[2,5-Bis-O-[(1,1-dimethylethyl)dimethylsilyl]-β-D-ribofuranosyl]-4-methoxy-2-(methylthio)-7H-pyrrolo[2,3-d]pyrimidine

N-[3-[4-Amino-7-(3-deoxy-β-D-erythro-pentofuranosyl)-7H-pyrrolo[2,3-d]pyrimidin-5-yl]-2-propyn-1-yl]-2,2,2-trifluoroacetamide

4-Chloro-7-(2,5-di-O-acetyl-3-deoxy-β-D-erythro-pentofuranosyl)-5-iodo-7H-pyrrolo[2,3-d]pyrimidine