Cytidine, N-acetyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-O-methyl-3′-O-[(1S,3S,3aS)-tetrahydro-3-[(methyldiphenylsilyl)methyl]-1H,3H-pyrrolo[1,2-c][1,3,2]oxazaphosphol-1-yl]-

Guanosine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-6-O-(2-cyanoethyl)-2′-deoxy-N-(2-methyl-1-oxopropyl)-3′-O-[(1S,3S,3aS)-tetrahydro-3-(methyldiphenylsilyl)-1H,3H-pyrrolo[1,2-c][1,3,2]oxazaphosphol-1-yl]-

2-Methyl-N-[6-[2-(4-nitrophenyl)ethoxy]-9-[3,5-O-[1,1,3,3-tetrakis(1-methylethyl)-1,3-disiloxanediyl]-2-O-[(1,1,1-trifluoromethyl)sulfonyl]-β-D-arabinofuranosyl]-9H-purin-2-yl]propanamide

2-Methyl-N-[6-[2-(4-nitrophenyl)ethoxy]-9-[3,5-O-[1,1,3,3-tetrakis(1-methylethyl)-1,3-disiloxanediyl]-β-D-erythro-pentofuranos-2-ulosyl]-9H-purin-2-yl]propanamide

Guanosine, 3′-deoxy-3′-(2-hydroxyethyl)-N-(2-methyl-1-oxopropyl)-, 2′-acetate 5′-benzoate

5′-Guanylic acid, 2′-[dihydrogen (R)-phosphorothioate], cyclic 2′→5:5′→3-diester with (1S)-1-C-(8-amino-4-isoquinolinyl)-1,4-anhydro-D-ribitol

5′-Guanylic acid, 2′-[dihydrogen (R)-phosphorothioate], cyclic 2′→5′:5′→3′-diester with 8-β-D-ribofuranosylpyrido[4,3-d]pyrimidin-4(3H)-one

5′-Guanylic acid, 2′-[dihydrogen (R)-phosphorothioate], cyclic 2′→5:5′→3-diester with (1S)-1-C-(4-aminopyrido[4,3-d]pyrimidin-8-yl)-1,4-anhydro-D-ribitol