N-[(2S,8S)-8-[(3S)-3-{[(3S,6S)-1-[(2S)-1-[(6S)-1-[(2S)-1-{[(2S)-1-{[(2S)-1-[(2S)-2-[(2-aminoacetyl)amino]-4-carboxy-1-oxobutyl]pyrrolidin-2-yl]carbonyl}pyrrolidin-2-yl]carbonyl}pyrrolidin-2-yl]-6-(4-aminobutyl)-1,4,7-trioxo-2,5-diazahept-7-yl]pyrrolidin-2-yl]-6-(carboxymethyl)-3-methyl-1,4,7-trioxo-2,5-diazahept-7-yl]amino}-2,5-dioxopyrrolidin-1-yl]-2-(2-methylpropyl)-1,4,7-trioxo-3,6-diazanon-1-yl]-L-valine