5′-O-DMTr-2′-O-Trifluoroacetamindo propyl-G(iBu)-3′-CE-Phosphoramidite

N2-isobutyryl-5'-O-(4, 4'-Dimethoxytrityl)-2'-O-trifluoroacetamido propyl-guanosine-3'-[(2-cyanoethyl)-(N, N-diisopropyl)]-Phosphoramidite