1-[(5R)-5-C-(3,4-Dichlorophenyl)-β-D-ribofuranosyl]-4-hydrazinyl-1H-pyrazolo[3,4-d]pyrimidine

1-[(5R)-5-C-(4-Chloro-3-fluorophenyl)-β-D-ribofuranosyl]-4-hydrazinyl-1H-pyrazolo[3,4-d]pyrimidine

1-[(5R)-5-C-(3-Chloro-4-fluorophenyl)-β-D-ribofuranosyl]-4-hydrazinyl-1H-pyrazolo[3,4-d]pyrimidine

1-[(5R)-5-C-(3,4-Difluorophenyl)-β-D-ribofuranosyl]-4-hydrazinyl-1H-pyrazolo[3,4-d]pyrimidine

1H-Pyrazolo[3,4-d]pyrimidine, 4-hydrazinyl-1-(6,7,8-trideoxy-8,8,8-trifluoro-β-D-allo-oct-6-ynofuranosyl)-

1H-Pyrazolo[3,4-d]pyrimidine, 1-(7-cyclopropyl-6,7-dideoxy-β-D-allo-hept-6-ynofuranosyl)-4-hydrazinyl-

1H-Pyrazolo[3,4-d]pyrimidine, 4-hydrazinyl-1-(6,7,8-trideoxy-β-D-allo-oct-6-ynofuranosyl)-

1-[5-(4-Chlorophenyl)-5,6-dideoxy-β-D-allofuranosyl]-4-hydrazinyl-1H-pyrazolo[3,4-d]pyrimidine

1-[5-(4-Chlorophenyl)-5,6-dideoxy-α-L-talofuranosyl]-4-hydrazinyl-1H-pyrazolo[3,4-d]pyrimidine

1-[(5R)-5-(4-Chlorophenyl)-5-deoxy-5-fluoro-β-D-ribofuranosyl]-4-hydrazinyl-1H-pyrazolo[3,4-d]pyrimidine

1-[5-C-(4-Chlorophenyl)-6-deoxy-α-L-talofuranosyl]-4-hydrazinyl-1H-pyrazolo[3,4-d]pyrimidine

1-[(5R)-5-C-(4-Chlorophenyl)-β-D-ribofuranosyl]-4-hydrazinyl-3-methyl-1H-pyrazolo[3,4-d]pyrimidine

1-[(5R)-5-C-(4-Chlorophenyl)-β-D-ribofuranosyl]-3-fluoro-4-hydrazinyl-1H-pyrazolo[3,4-d]pyrimidine

1-[(5R)-5-C-(4-Chlorophenyl)-β-D-ribofuranosyl]-4-hydrazinyl-1H-pyrazolo[3,4-d]pyrimidine

1,12-Epoxy-5H-indolo[3,2,1-de]pyrido[3,2,1-ij][1,5]naphthyridine-12(13H)-carboxylic acid, 13a-ethyl-1,6,13a,13b-tetrahydro-2-[4-(4-morpholinyl)phenyl]-, methyl ester, (1S,12S,13aS,13bS)-

1,12-Epoxy-5H-indolo[3,2,1-de]pyrido[3,2,1-ij][1,5]naphthyridine-12(13H)-carboxylic acid, 13a-ethyl-1,6,13a,13b-tetrahydro-2-phenyl-, methyl ester, (1S,12S,13aS,13bS)-

1,12-Epoxy-5H-indolo[3,2,1-de]pyrido[3,2,1-ij][1,5]naphthyridine-12(13H)-carboxylic acid, 13a-ethyl-1,6,13a,13b-tetrahydro-2-[2-(4-methoxyphenyl)ethynyl]-, methyl ester, (1S,12S,13aS,13bS)-

Methyl (1S,12S,13aS,13bS)-13a-ethyl-1,6,13a,13b-tetrahydro-2-(2-phenylethynyl)-1,12-epoxy-5H-indolo[3,2,1-de]pyrido[3,2,1-ij][1,5]naphthyridine-12(13H)-carboxylate

1,12-Epoxy-5H-indolo[3,2,1-de]pyrido[3,2,1-ij][1,5]naphthyridine-12(13H)-carboxylic acid, 13a-ethyl-1,6,13a,13b-tetrahydro-2-[(1E)-2-phenylethenyl]-, methyl ester, (1S,12S,13aS,13bS)-

1,12-Epoxy-5H-indolo[3,2,1-de]pyrido[3,2,1-ij][1,5]naphthyridine-12(13H)-carboxylic acid, 13a-ethyl-1,6,13a,13b-tetrahydro-2-(3-methoxyphenyl)-, methyl ester, (1S,12S,13aS,13bS)-