1-{[(2S)-1-[(3S,6S,9S,12S,15R,18S,21S)-3-(1H-imidazol-4-ylmethyl)-6-(1H-indol-3-ylmethyl)-21-(3-{[amino(azanylidene)methyl]amino}propyl)-9-(hydroxymethyl)-12-[(4-hydroxyphenyl)methyl]-18-(2-methylpropyl)-15-{[(2-methylprop-2-yl)oxy]methyl}-1,4,7,10,13,16,19,22-octaoxo-1-[(2S)-5-oxopyrrolidin-2-yl]-2,5,8,11,14,17,20-heptazadocos-22-yl]pyrrolidin-2-yl]carbonyl}semicarbazide