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The x-ray crystal and molecular structure of glechomafuran

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Abstract

The X-ray crystal structure of glechomafuran (1β,10α,4α,5β-diepoxy-7,8-furanogermacrane), a natural product obtained from seeds ofSmyrnium olusatrum L., has been determined in order to establish the correct relative configuration of the molecule. Crystals are monoclinic, space groupP21 witha=6.785(4),b=12.325(9),c=16.390(6) Å,β=97.89(4)°, and four molecules in the unit cell. The two epoxides are found to be α,β-attached, and the associated methyl groups are positionedsyn to each other. The furan ring is essentially flat, and shows no evidence of any double bond delocalization.

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Authors and Affiliations

  1. Department of Chemistry, University of Houston, 77004, Houston, Texas

    James D. Korp & Ivan Bernal

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  1. James D. Korp
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  2. Ivan Bernal
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Korp, J.D., Bernal, I. The x-ray crystal and molecular structure of glechomafuran. Journal of Crystallographic and Spectroscopic Research 15, 191–199 (1985). https://doi.org/10.1007/BF01181806

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  • DOI: https://doi.org/10.1007/BF01181806

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