(2S)-N-[(1S)-1-[[(1S)-5-amino-1-[[(1S)-1-[[(1S)-1-[[(1S)-1-[[(1S)-1-[[ (1S)-1-[[(1S)-1-[[(1S)-5-amino-1-[[(1S)-5-amino-1-[[(1S,2S)-1-[[(1S)-1 -carbamoyl-3-methyl-butyl]carbamoyl]-2-methyl-butyl]carbamoyl]pentyl]c arbamoyl]pentyl]carbamoyl]ethyl]carbamoyl]-2-methyl-propyl]carbamoyl]e thyl]carbamoyl]-3-methyl-butyl]carbamoyl]-3-methyl-butyl]carbamoyl]eth yl]carbamoyl]pentyl]carbamoyl]-3-methyl-butyl]-2-[[(2S)-2-amino-4-meth yl-pentanoyl]amino]butanediamide