5′-DMT-2′-O-MOE-G(iBu)-3′-PS-Phosphoramidite

[N2-isobutyryl-5'-O-(4, 4'-dimethoxytrityl)-2'-O-methoxyethyl-guanosine]-3'-[S-(β-(Benzoylmercapto)ethyl) Pyrrolidino Thiophosphoroamidite]