2H-Isoindole-2-undecanoic acid, 1,3-dihydro-1,3-dioxo-, 2-[[[11-(1,3-dihydro-1,3-dioxo-2H-isoindol-2-yl)-1-oxoundecyl]oxy]methyl]-2,3,3a,9a-tetrahydro-6-imino-6H-furo[2′,3′:4,5]oxazolo[3,2-a]pyrimidin-3-yl ester, [2R-(2α,3β,3aβ,9aβ)]-

2H-Isoindole-2-butanoic acid, 1,3-dihydro-1,3-dioxo-, 2-[[4-(1,3-dihydro-1,3-dioxo-2H-isoindol-2-yl)-1-oxobutoxy]methyl]-2,3,3a,9a-tetrahydro-6-imino-6H-furo[2′,3′:4,5]oxazolo[3,2-a]pyrimidin-3-yl ester, [2R-(2α,3β,3aβ,9aβ)]-

2H-Isoindole-2-propanoic acid, 1,3-dihydro-1,3-dioxo-, 2-[[3-(1,3-dihydro-1,3-dioxo-2H-isoindol-2-yl)-1-oxopropoxy]methyl]-2,3,3a,9a-tetrahydro-6-imino-6H-furo[2′,3′:4,5]oxazolo[3,2-a]pyrimidin-3-yl ester, [2R-(2α,3β,3aβ,9aβ)]-

Undecanoic acid, 11-(benzoylamino)-, 2-[[[11-(benzoylamino)-1-oxoundecyl]oxy]methyl]-2,3,3a,9a-tetrahydro-6-imino-6H-furo[2′,3′:4,5]oxazolo[3,2-a]pyrimidin-3-yl ester, [2R-(2α,3β,3aβ,9aβ)]-

Undecanoic acid, 11-bromo-, 2-[[(11-bromo-1-oxoundecyl)oxy]methyl]-2,3,3a,9a-tetrahydro-6-imino-6H-furo[2′,3′:4,5]oxazolo[3,2-a]pyrimidin-3-yl ester, [2R-(2α,3β,3aβ,9aβ)]-

2H-Isoindole-2-hexanoic acid, 1,3-dihydro-1,3-dioxo-, 2-[[[6-(1,3-dihydro-1,3-dioxo-2H-isoindol-2-yl)-1-oxohexyl]oxy]methyl]-2,3,3a,9a-tetrahydro-6-imino-6H-furo[2′,3′:4,5]oxazolo[3,2-a]pyrimidin-3-yl ester, [2R-(2α,3β,3aβ,9aβ)]-

Undecanoic acid, 11-[[(4-methylphenyl)sulfonyl]amino]-, [2,3,3a,9a-tetrahydro-6-imino-3-[[11-[[(4-methylphenyl)sulfonyl]amino]-1-oxoundecyl]oxy]-6H-furo[2′,3′:4,5]oxazolo[3,2-a]pyrimidin-2-yl]methyl ester, [2R-(2α,3β,3aβ,9aβ)]-

Undecanoic acid, 11-(acetylamino)-, 2-[[[11-(acetylamino)-1-oxoundecyl]oxy]methyl]-2,3,3a,9a-tetrahydro-6-imino-6H-furo[2′,3′:4,5]oxazolo[3,2-a]pyrimidin-3-yl ester, [2R-(2α,3β,3aβ,9aβ)]-

Propanoic acid, 3-ethoxy-, 2-[(3-ethoxy-1-oxopropoxy)methyl]-2,3,3a,9a-tetrahydro-6-imino-6H-furo[2′,3′:4,5]oxazolo[3,2-a]pyrimidin-3-yl ester, [2R-(2α,3β,3aβ,9aβ)]-

Uridine, 5-[3-[2-(acetylamino)ethyl]-5-methoxy-1H-indol-2-yl]-

3,4-Dihydro-4,6-dimethyl-3-(2,3,5-tri-O-acetyl-β-D-ribofuranosyl)-9H-imidazo[1,2-a]purin-9-one

Guanosine, 3-methyl-1-(2-oxopropyl)-, 2′,3′,5′-triacetate

3-Methylguanosine

Guanosine, N-acetyl-3-methyl-, 2′,3′,5′-triacetate

Guanosine, 3-methyl-, 2′,3′,5′-triacetate

Guanosine, 3-methyl-N-(phenylmethyl)-, 2′,3′,5′-triacetate

Methyl N-[4-(aminocarbonyl)-1-(2,3,5-tri-O-acetyl-β-D-ribofuranosyl)-1H-imidazol-5-yl]-N-methyl-N′-(phenylmethyl)carbamimidothioate

1H-Imidazole-4-carboxamide, 5-[methyl[[(phenylmethyl)amino]thioxomethyl]amino]-1-(2,3,5-tri-O-acetyl-β-D-ribofuranosyl)-

5-(Methylamino)-1-(2,3,5-tri-O-acetyl-β-D-ribofuranosyl)-1H-imidazole-4-carboxamide

5-(Methylamino)-1-(2,3,5-tri-O-acetyl-β-D-ribofuranosyl)-1H-imidazole-4-carbonitrile