(2R)-2-[[(2S)-1-[2-[[(2S)-6-amino-2-[[(2S,5S,8S,11S,13Z,16S)-16-amino-2-[3-(diaminomethylideneamino)propyl]-8-(hydroxymethyl)-5-(2-methylpropyl)-3,6,9,17-tetraoxo-1,4,7,10-tetrazacycloheptadec-13-ene-11-carbonyl]amino]hexanoyl]amino]acetyl]pyrrolidine-2-carbonyl]amino]-3-naphthalen-2-ylpropanoic acid