(3S)-4-[[(2S)-1-amino-1-oxo-3-phenylpropan-2-yl]amino]-3-[[(2S)-2-[[(2S)-3-(1H-indol-3-yl)-2-[3-[(2-methylpropan-2-yl)oxycarbonylamino]propanoylamino]propanoyl]amino]-4-methylsulfanylbutanoyl]amino]-4-oxobutanoic acid
(3S)-4-[[(1S)-2-amino-2-oxo-1-(phenylmethyl)ethyl]amino]-3-[[(2S)-2-[[(2S)-2-[3-(tert-butoxycarbonylamino)propanoylamino]-3-(1H-indol-3-yl)propanoyl]amino]-4-methylsulfanyl-butanoyl]amino]-4-oxo-butanoic acid
(3S)-4-[[(1S)-2-amino-2-oxo-1-(phenylmethyl)ethyl]amino]-3-[[(2S)-2-[[(2S)-2-[[3-[(tert-butoxy-oxomethyl)amino]-1-oxopropyl]amino]-3-(1H-indol-3-yl)-1-oxopropyl]amino]-4-(methylthio)-1-oxobutyl]amino]-4-oxobutanoic acid
(3S)-4-[[(1S)-2-amino-1-(benzyl)-2-keto-ethyl]amino]-3-[[(2S)-2-[[(2S)-2-[3-(tert-butoxycarbonylamino)propanoylamino]-3-(1H-indol-3-yl)propanoyl]amino]-4-(methylthio)butanoyl]amino]-4-keto-butyric acid
(3S)-4-[[(2S)-1-amino-1-oxo-3-phenyl-propan-2-yl]amino]-3-[[(2S)-2-[[(2S)-3-(1H-indol-3-yl)-2-[3-[(2-methylpropan-2-yl)oxycarbonylamino]propanoylamino]propanoyl]amino]-4-methylsulfanyl-butanoyl]amino]-4-oxo-butanoic acid