5′-O-DMTr-2′-O-TBDMS-4′-Thio-U-3′-CE-Phosphoramidite

5'-O-(4, 4'-dimethoxytrityl)-2'-O-(t-butyl-dimethylsilyl)-4'-thiouridine-3'-O-[(2-cyanoethyl)-N,N-diisopropyl]-Phosphoramidite