L-Proline, N-(2-hydroxy-3-methyl-1-oxopentyl)-L-leucyl-N5-(N-(3-(2-(1-((3-amino-5-methyl-1,2-dioxohexyl)amino)ethyl)-4-oxazolyl)-1-oxo-2-propenyl)-5-hydroxy-L-tryptophyl)-L-ornithyl-, cyclic (3-2)-peptide