N2-isobutyryl-8,2'-anhydro-8-oxy-9β-D-arabinofuranosylguanine

N2-isobutyryl-3'-O,5'-O-(tetrahydrofuranyl)-8,2'-anhydro-8-oxy-9-β-D-arabinofuranosylguanine

N-(9-((2R,3S,4S,5R)-3-hydroxy-4-((tetrahydrofuran-2-yl)oxy)-5-(((tetrahydrofuran-2-yl)oxy)methyl)tetrahydrofuran-2-yl)-8-mercapto-6-oxo-6,9-dihydro-1H-purin-2-yl)isobutyramide

(6aS)-2-amino-7c-hydroxy-8t-hydroxymethyl-(6ar,9ac)-6a,7,8,9a-tetrahydro-3H-furo[2',3':4,5]oxazolo[3,2-e]purin-4-one

Acetic acid (2R,3S,4R,5R)-4-hydroxy-5-hydroxymethyl-2-(2-isobutyrylamino-6-oxo-1,6-dihydro-purin-9-yl)-tetrahydro-furan-3-yl ester