Synonyms: 173091-93-5;AC1LA3SC;r, (aR,2S,5'S)-;(2,3'-Bi-1H-pyrrole)-4-acetic acid, 5'-((2S,3S)-3-(((1,1-dimethylethoxy)carbonyl)amino)-2-hydroxy-4-phenylbutyl)-2,3,4',5'-tetrahydro-2-(2-methylpropyl)-3,4'-dioxo-alpha,5'-bis(phenylmethyl)-, methyl ester, (aR,2S,5'S)-;[2,3'-Bi-1H-pyrrole]-4-acetic acid, 5'-[(2S,3S)-3-[[(1,1-dimethylethoxy)carbonyl]amino]-2-hydroxy-4-phenylbutyl]-2,3,4',5'-tetrahydro-2-(2-methylpropyl)-3,4'-dioxo-a,5'-bis(phenylmethyl)-, methyl este;methyl (2R)-2-[(5S)-5-[(5S)-5-benzyl-5-[(2S,3S)-2-hydroxy-3-[(2-methylpropan-2-yl)oxycarbonylamino]-4-phenylbutyl]-4-oxo-1H-pyrrol-3-yl]-5-(2-methylpropyl)-4-oxo-1H-pyrrol-3-yl]-3-phenylpropanoate