Acta Cryst. (2002). E58, o935-o936  [ doi:10.1107/S1600536802013259 ]

Montanastatin, cyclo[-(Val-D-Hyv-D-Val-Lac)₂-]

M. Doi and A. Asano

Abstract: Crystals of montanastatin anhydride, C₃₆H₆₀N₄O₁₂, were grown from a hexylene glycol solution. A crystallographic twofold axis runs through the centre of the molecule. The aliphatic side chains located on one side of the peptide ring form a hydrophobic region. The shape of the whole molecule is rectangular and is similar to the structure of the valinomycin analogue, viz. cyclo[-(D-Val-L-Hyv-L-Val-D-Hyv)₂-].

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