9-(3'-O-benzoyl-2'-O-{[(9H-fluoren-9-yl)methoxy]carbonyl}-α-L-arabinopyranosyl)-N2-isobutyrylguanine

9-{3'-O-benzoyl-2'-O-[(4'',4'''-dimethoxytriphenyl)methyl]-α-L-arabinopyranosyl}-N2-(phenoxyacetyl)guanine