N-[(6S)-1-[(2S,4R)-1-{[(2S)-1-[(6R,9S)-1,6-diamino-9-(3-{[amino(azanylidene)methyl]amino}propyl)-1-azanylidene-7,10-dioxo-2,8-diazadec-10-yl]pyrrolidin-2-yl]carbonyl}-4-hydroxypyrrolidin-2-yl]-1,4,7-trioxo-6-(thiophen-2-ylmethyl)-2,5-diazahept-7-yl]-L-serine