[5′-O-DMTr-2′-F-dG(iBu)](pCyEt)[2′-OMe-U-3′-CE-Phosphoramidite]

[5'-O-(4, 4'-dimethoxytrityl)-2'-Fluoro-deoxyguanosine(isobutyryl)](pCyEt)[2'-O-methyl-U-3'-cyanoethyl-Phosphoramidite]