Hemiasterlin Methyl Ester

The structure of the tripeptide hemiasterlin methyl ester, IUPAC name: methyl 2,5-dimethyl-4-{2-[3-methyl-2-methylamino-3-(N-methylbenzo[b]pyrrol-3- yl)butanamido]-3,3-dimethyl-N-methylbutanamido}-2-hexenoate., C₃₁H₄₈N₄O₄, has been determined by X-ray analysis. The absolute configuration is based on the chiralities determined by other methods for two of the three chiral centers. Weak hydrogen bonding influences the solid-state conformation.

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