80259-15-0 
 
129666-75-7 
 
N6-benzoyl-5'-O-(dimethoxytrityl)-3'-O-<2-(4-nitrophenyl)ethylsulfonyl>adenosine 
 
N6-benzoyl-5'-O-(dimethoxytrityl)-2'-O-<2-(4-nitrophenyl)ethylsulfonyl>adenosine 
 
N6-benzoyl-5'-O-(dimethoxytrityl)-2',3'-O-bis<2-(4-nitrophenyl)ethylsulfonyl>adenosine 
[1]HelveticaChimicaActa,1989,vol.72,p.1354-1361