2-(3-{[2-(3-Methyl-2-{3-methyl-2-[(pyrazine-2-carbonyl)-amino]-butyrylamino}-butyryl)-1,2,3,3a,6,6a-hexahydro-cyclopenta[c]pyrrole-1-carbonyl]-amino}-2-oxo-pentanoylamino)-3-phenyl-propionic acid AIDS-211010 AIDS211010