2-(2-aminoacetamido)-N-(1-{[1-({1-[(1-{[({1-[(1-{[1-carbamoyl-3-(methylsulfanyl)propyl]carbamoyl}-2-phenylethyl)carbamoyl]-2-(1H-imidazol-4-yl)ethyl}carbamoyl)methyl]carbamoyl}-2-hydroxypropyl)carbamoyl]ethyl}carbamoyl)-2-(1H-indol-3-yl)ethyl]carbamoyl}-3-methylbutyl)butanediamide