Adenosine,N-benzoyl-5'-O-[bis(4-methoxyphenyl)phenylmethyl]-2'-O-[5-(1,3-dihydro-1,3-dioxo-2H-isoindol-2-yl)pentyl]-, 3'-[2-cyanoethylbis(1-methylethyl)phosphoramidite] [ 139212-99-0 ]