(4S)-4-[(2S)-2-[(2S)-2-[(2S)-2-{2-[(2S)-2-(2-{2-[2-(2-{[(2S)-1-[(2S)-2-{[(2S)-1-[(2R)-2-amino-3-phenylpropanoyl]pyrrolidin-2-yl]formamido}-5-carbamimidamidopentanoyl]pyrrolidin-2-yl]formamido}acetamido)acetamido]acetamido}acetamido)-3-carbamoylpropanamido]acetamido}-3-carboxypropanamido]-3-phenylpropanamido]-4-carboxybutanamido]-4-{[(2S,3S)-1-[(2S)-2-{[(1S)-3-carboxy-1-{[(1S)-3-carboxy-1-{[(1S)-1-{[(1S)-1-carboxy-3-methylbutyl]carbamoyl}-2-(4-hydroxyphenyl)ethyl]carbamoyl}propyl]carbamoyl}propyl]carbamoyl}pyrrolidin-1-yl]-3-methyl-1-oxopentan-2-yl]carbamoyl}butanoic acid