N3-cyanoethyl-5′-O-DMTr-2′-OMOE-5-Me-U-3′-CE-phosphoramidite

N3-cyanoethyl-5'-O-(4, 4'-dimethoxytrityl)-2'-O-methoxyethyl-5-methyl-uridine-3'-O-[(2-cyanoethyl)-N, N-diisopropyl] Phosphoramidite