5'-Dimethoxytrityl-N2-[6-(trifluoroacetylamino)-hex-1-yl]-2'-deoxyGuanosine-3'-[(2-cyanoethyl)-(N,N-diisopropyl)]-phosphoramidite
3-Dimethoxytrityloxy-2-(3-(fluorenylmethoxycarbonylamino)propanamido)propyl-1-O-(2-cyanoethyl)-(N,N-diisopropyl)-phosphoramidite