(2R)-2-{[(11R,23R)-26-[(2S,5R,8R,11S)-11-(3-{[amino(azanylidene)methyl]amino}propyl)-5-[(4-hydroxyphenyl)methyl]-3,6,9,12,15-pentaoxo-8-(sulfanylmethyl)-1,4,7,10,13-pentazacyclopentadecan-2-yl]-1,10,13,22,25-pentaoxo-11,23-bis(sulfanylmethyl)-9,12,21,24-tetraza-3,6,15,18-tetraoxahexacos-1-yl]amino}-3-sulfanylpropanamide