2-(6-Aminopurin-9-yl)-5-[({2-(6-aminopurin-9-yl)-4-hydroxy-5-[(oxyphosphinyloxyphosphinyl)methyl]oxolan-3-yl}phosphinyloxy)methyl]-4-hydroxyoxolan-3-yl [5-(6-aminopurin-9-yl)-4-hydroxyoxolan-2-yl]methyl hydrogen phosphate 5'p-2',5',-A-A-Co (Co = Cordycepin) AIDS-042766 AIDS042766