2-(6-Aminopurin-9-yl)-5-[({2-(6-aminopurin-9-yl)-5-[(oxyphosphinyloxyphosphinyl)methyl]oxolan-3-yl}phosphinyloxy)methyl]oxolan-3-yl [5-(6-aminopurin-9-yl)-3,4-dihydroxyoxolan-2-yl]methyl hydrogen 5'p-2',5',-Co-Co-A (Co = Cordycepin) AIDS-042763 AIDS042763