2'(3')-O-(N-Acetyl)-L-leucyl-2'(3')-O-L-phenylalanyl-(1,2-diadenosin-N(6)-yl)ethane 67462-03-7 L-Phenylalanine, 2'(or 3')-ester with N-(2-((9-(2'(or 3')-O-(2-(acetylamino)-4-methyl-1-oxopentyl)-beta-D-ribofuranosyl)-9H-purin-6-yl)amino)ethyl)adenosine