9-[5-O-(tert-butyldiphenylsilyl)-2,3-dideoxy-β-L-erythro-pentofuranosyl]hypoxanthine

2-Amino-9-[(2S,5R)-5-(tert-butyl-diphenyl-silanyloxymethyl)-2,5-dihydro-furan-2-yl]-9H-purin-6-ol

9-[5-O-(tert-butyldiphenylsilyl)-3-deoxy-2-Se-phenyl-2-seleno-β-L-erythro-pentofuranosyl]hypoxanthine

9-[5-O-(tert-butyldiphenylsilyl)-2,3-dideoxy-β-L-glycero-pentofuranosyl]-2-fluoroadenine