N1-Me-5′-OMMT-2′-OTBDMS-A(Cl-Ac)-3′-CE-Phosphoramidite

N1-methyl-N6-chloroacetyl-5'-O-(4-monomethoxytrityl)-2'-O-(t-butyl-dimethylsilyl)-adenosine-3'-O-[(2-cyanoethyl)-N, N-diisopropyl] Phosphoramidite