Cytidine, N-benzoyl-5-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-2′-O-fluoro-3′-O-[(1′S,3′aS)-tetrahydrospiro[cyclopentane-1,3′-[1H,3H]pyrrolo[1,2-c][1,3,2]oxazaphosphol]-1′-yl]-

Adenosine, N-benzoyl-5-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-2′-O-fluoro-3′-O-[(1′S,3′aS)-tetrahydrospiro[cyclopentane-1,3′-[1H,3H]pyrrolo[1,2-c][1,3,2]oxazaphosphol]-1′-yl]-

Adenosine, N-benzoyl-5-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-O-methyl-3′-O-[(1′S,3′aS)-tetrahydrospiro[cyclopentane-1,3′-[1H,3H]pyrrolo[1,2-c][1,3,2]oxazaphosphol]-1′-yl]-