Minor sesquiterpenes from the volatile oil from leaves of Guarea guidonia Sleumer (Meliaceae)

Abstract

The essential oil from leaves of Guarea guidonia was subjected to chromatographic separation procedures to afford nine sesquiterpenes; two of them are new eudesmane derivatives. The chemical structures of the obtained compounds were characterised by spectrometric analysis, mainly mass spectrometry and NMR.

Keywords:

• Guarea guidonia
• Meliaceae
• eudesmane sesquiterpenes

Acknowledgements

The authors thank CNPq and FAPESP for financial support and fellowships.