5′-O-DMTr-2′-O-Trifluoroacetamindo propyl-C(Bz)-3′-CE-Phosphoramidite

N4-benzoyl-5'-O-(4, 4'-Dimethoxytrityl)-2'-O-trifluoroacetamido propyl-cytidine-3'-[(2-cyanoethyl)-(N, N-diisopropyl)]-Phosphoramidite