(2α,4α,6R,7R,8S)-6-(6-Amino-9H-purin-9-yl)-2-[(3-chloro-7-quinolinyl)methyl]-5-oxaspiro[3.4]octane-7,8-diol

9-[(1α,3β,3′aS,6′R,6′aR)-3-[(3-Chloro-7-quinolinyl)methyl]dihydro-2′,2′-dimethylspiro[cyclobutane-1,4′(3′aH)-furo[3,4-d][1,3]dioxol]-6′-yl]-9H-purin-6-amine

(2α,4α,6R,7R,8S)-6-(6-Amino-9H-purin-9-yl)-2-[(3-chloro-7-quinolinyl)oxy]-5-oxaspiro[3.4]octane-7,8-diol

9-[(1α,3α,3′aS,6′R,6′aR)-3-[(3-Chloro-7-quinolinyl)oxy]dihydro-2′,2′-dimethylspiro[cyclobutane-1,4′(3′aH)-furo[3,4-d][1,3]dioxol]-6′-yl]-9H-purin-6-amine

N′-[9-[(1α,3α,3′aS,6′R,6′aR)-3-[(3-Chloro-7-quinolinyl)oxy]dihydro-2′,2′-dimethylspiro[cyclobutane-1,4′(3′aH)-furo[3,4-d][1,3]dioxol]-6′-yl]-9H-purin-6-yl]-N,N-dimethylmethanimidamide

N′-[9-[(1α,3β,3′aS,6′R,6′aR)-Dihydro-3-hydroxy-2′,2′-dimethylspiro[cyclobutane-1,4′(3′aH)-furo[3,4-d][1,3]dioxol]-6′-yl]-9H-purin-6-yl]-N,N-dimethylmethanimidamide

5-Oxaspiro[3.4]octane-2,7,8-triol, 6-(6-amino-9H-purin-9-yl)-, (2α,4β,6R,7R,8S)-

1,1′-[(2α,4β,6R,7R,8S)-2-(Benzoyloxy)-6-(6-chloro-9H-purin-9-yl)-5-oxaspiro[3.4]octane-7,8-diyl] bis(2,2-dimethylpropanoate)

5-Oxaspiro[3.4]octane-7,8-diol, 6-(6-amino-9H-purin-9-yl)-2-[(3-bromo-7-quinolinyl)oxy]-, (2α,4β,6R,7R,8S)-

5-Oxaspiro[3.4]octane-7,8-diol, 6-(6-amino-9H-purin-9-yl)-2-[(2-amino-7-quinolinyl)oxy]-, (2α,4β,6R,7R,8S)-

5-Oxaspiro[3.4]octane-7,8-diol, 2-[(3-bromo-7-quinolinyl)oxy]-6-(6-chloro-9H-purin-9-yl)-, 7,8-diacetate, (2α,4β,6R,7R,8S)-