(2S)-2-[[(2S)-6-amino-2-[[(2S)-2-[[(2S)-2-[[(2S)-4-amino-2-[[(2S,3S)-2-[[(2S,3S)-2-[[(2S)-2-amino-3-hydroxypropanoyl]amino]-3-methylpentanoyl]amino]-3-methylpentanoyl]amino]-4-oxobutanoyl]amino]-3-phenylpropanoyl]amino]-5-hydroxy-5-oxopentanoyl]amino]hexanoyl]amino]-4-methylpentanoic acid
(2S)-2-[[(2S)-6-amino-2-[[(2S)-2-[[(2S)-2-[[(2S)-4-amino-2-[[(2S,3S)-2-[[(2S,3S)-2-[[(2S)-2-amino-3-hydroxy-propanoyl]amino]-3-methyl-pentanoyl]amino]-3-methyl-pentanoyl]amino]-4-oxo-butanoyl]amino]-3-phenyl-propanoyl]amino]-5-hydroxy-5-oxo-pentanoyl]amino]hexanoyl]amino]-4-methyl-pentanoic acid
(2S)-2-[[(2S)-6-amino-2-[[(2S)-2-[[(2S)-2-[[(2S)-4-amino-2-[[(2S,3S)-2-[[(2S,3S)-2-[[(2S)-2-amino-3-hydroxy-1-oxopropyl]amino]-3-methyl-1-oxopentyl]amino]-3-methyl-1-oxopentyl]amino]-1,4-dioxobutyl]amino]-1-oxo-3-phenylpropyl]amino]-5-hydroxy-1,5-dioxopentyl]amino]-1-oxohexyl]amino]-4-methylpentanoic acid
(2S)-2-[[(2S)-6-amino-2-[[(2S)-2-[[(2S)-2-[[(2S)-4-amino-2-[[(2S,3S)-2-[[(2S,3S)-2-[[(2S)-2-amino-3-hydroxy-propanoyl]amino]-3-methyl-pentanoyl]amino]-3-methyl-pentanoyl]amino]-4-keto-butanoyl]amino]-3-phenyl-propanoyl]amino]-5-hydroxy-5-keto-pentanoyl]amino]hexanoyl]amino]-4-methyl-valeric acid