CAS No 137201-62-8 , (2S,
3R)-2-[[(2S)-2-[[(2S)-1-[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-amino-4-
methylpentanoyl]amino]-3-methylbutanoyl]amino]-3-methylbutanoyl]amino]-
3-(4-hydroxyphenyl)propanoyl]pyrrolidine-2-carbonyl]amino]-3-(1H-indol-
3-yl)propanoyl]amino]-3-hydroxybutanoic acid