6-amino-2-nitro-9-(2',3',5'-tri-O-acetyl-β-D-ribofuranosyl)-purine

2-nitroadenosine pentaacetate

(2R,3R,4R,5R)-2-(acetoxymethyl)-5-(2-nitro-6-((triphenyl-l5-phosphaneylidene)amino)-9H-purin-9-yl)tetrahydrofuran-3,4-diyl diacetate

2-amino-6-azido-9-(2',3',5'-tri-O-acetyl-β-D-ribofuranosyl)-purine

2,3,5-tri-O-acetyl-α-D-ribofuranosyl chloride