2',3'-di-O-p-tolylsulphonyl-9-β-D-xylofuranosyladenine

9-(5-O-acetyl-3-deoxy-β-D-erythro-pentofuranosyl)adenine

N-(9-((2R,3S,4R,5R)-5-(((tert-butyldimethylsilyl)oxy)methyl)-3-hydroxy-4-iodotetrahydrofuran-2-yl)-9H-purin-6-yl)benzamide

2-(pivaloyloxymethyl)-2,3-dihydrofuran

O-((2R,3R,4R,5R)-5-(6-amino-9H-purin-9-yl)-4-((tert-butyldimethylsilyl)oxy)-2-(((tert-butyldimethylsilyl)oxy)methyl)tetrahydrofuran-3-yl) 1H-imidazole-1-carbothioate