3-[(4R,7S,10S,13S,16S)-4-{[(2S)-2-[(3R)-3-(3-{[amino(azanylidene)methyl]amino}propyl)-8-methyl-1,4,7-trioxo-2,5,8-triazanon-1-yl]pyrrolidin-1-yl]carbonyl}-13-benzyl-7-(carbamoylmethyl)-16-[(4-hydroxyphenyl)methyl]-6,9,12,15,18-pentaoxo-1,2-dithia-5,8,11,14,17-pentazacycloicosan-10-yl]propanamide