2-[[(6aR,9R,10aR)-7-methyl-6,6a,8,9,10,10a-hexahydro-4H-indolo[4,3-fg]quinolin-9-yl]methylsulfanyl]-N-[(5S)-5-[[2-[[(6aR,9R,10aR)-7-methyl-6,6a,8,9,10,10a-hexahydro-4H-indolo[4,3-fg]quinolin-9-yl]methylsulfanyl]acetyl]amino]-6-[[(3S,6S,9S,12R,15S,18S,21S,24R)-9-(4-aminobutyl)-15,18-dibenzyl-21-(3-carbamimidamidopropyl)-3-[(4-fluorophenyl)methyl]-6-[(1R)-1-hydroxyethyl]-12-(1H-indol-3-ylmethyl)-2,5,8,11,14,17,20,23-octaoxo-1,4,7,10,13,16,19,22-octazacyclooctacos-24-yl]amino]hexyl]acetamide