(2R)-2-({[(2S)-1-[(2S,5S,8R,11S,14S,17R,20R,23R)-8-{3-[(aminocarbonyl)amino]propyl}-2-(4-azanylidene-2-oxo-3,5-diazaoct-8-yl)-20-[(4-chlorophenyl)methyl]-14-(hydroxymethyl)-11-[(4-hydroxyphenyl)methyl]-5-(2-methylpropyl)-23-(2-naphthylmethyl)-1,4,7,10,13,16,19,22,25-nonaoxo-17-(pyridin-3-ylmethyl)-3,6,9,12,15,18,21,24-octazahexacos-1-yl]pyrrolidin-2-yl]carbonyl}amino)propanamide