L-Histidinamide, 1-((1,1-Dimethylethoxy)Carbonyl)-L-Prolyl-L-Phenylalanyl-N-(2-Hydroxy-5-Methyl-1-(2-Methylpropyl)-4-(((2-Methyl-1-(((2-Pyridinylmethyl)Amino)Carbonyl)Butyl)Amino)Carbonyl)Hexyl)-N(Sup Alpha)-Methyl-, (1S-(1R*,2R*,4R*(1R*,2R*)))-