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Crystal and molecular structure of 6-0-acetylgrayanotoxin III


The crystal and molecular structure of a grayanotoxin III derivative, 6-0-acetylgrayanotoxin III is presented. The crystal is orthorhombic, space group P212121, witha=15.582(3),b=21.304(3),c=6.339(3)Å,V=2104(1) Å3 Z=4. The structure was solved by direct methods and refined by full matrix least-squares methods to a finalR=0.047 for 1763 independent reflections withF 0>3 σ (F 0) The molecule is based on a tetracyclic structure consisting of two five-membered, one six-membered, and one seven-membered ring with various conformations.

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Correspondence to Mamoru Sato.

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Sato, M., Katsube, Y., Katai, M. et al. Crystal and molecular structure of 6-0-acetylgrayanotoxin III. J Chem Crystallogr 26, 153–156 (1996).

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Key Words

  • Crystal and molecular, structure
  • grayanotoxin III derivative