Propionic acid (2R,3S,4S,5R)-2-(6-amino-purin-9-yl)-5-(tert-butyl-dimethyl-silanyloxymethyl)-4-phenylselanyl-tetrahydro-furan-3-yl ester
Acetic acid (2R,3S,5S)-2-(6-amino-purin-9-yl)-5-(tert-butyl-dimethyl-silanyloxymethyl)-4-[1-phenyl-meth-(E)-ylidene]-tetrahydro-furan-3-yl ester
N-Benzoyl-N-{9-[(2R,4S,5R)-5-(tert-butyl-dimethyl-silanyloxymethyl)-4-hydroxy-tetrahydro-furan-2-yl]-9H-purin-6-yl}-benzamide
N-Benzoyl-N-{9-[(2R,3R,5S)-5-(tert-butyl-dimethyl-silanyloxymethyl)-3-hydroxy-tetrahydro-furan-2-yl]-9H-purin-6-yl}-benzamide
9-[3-C-benzenesulfonyl-5-O-(tert-butyldimethylsilyl)-3-deoxy-β-D-xylofuranosyl]-N6-pivaloyladenine