Chemotaxonomic relevance of cardenolides in Urginea fugax

Phytochemistry. 2004 Nov;65(21):2881-4. doi: 10.1016/j.phytochem.2004.05.025.

Abstract

In a chemotaxonomic approach the investigation of a methanolic extract of bulbs of Urginea fugax (MORIS) STEINH. resulted in the detection of several cardenolides. The structure of a novel compound, named fugaxin (1), was established as 12alpha,14beta-dihydroxy-2alpha,3beta-(tetrahydro-3',5'-dihydroxy-4'-methoxy-6'-methyl-2H-pyran-2',4'-diylbisoxy)-card-4,20-dienolide by extensive NMR spectroscopic studies including 2D-NMR techniques (COSY, HSQC, HMQC) and selective 1D experiments (NOE, TOCSY) as well as HR-ESI-MS. The chemotaxonomic relevance of the occurrence of cardenolides in the genus Urginea is discussed.

MeSH terms

  • Cardenolides / chemistry*
  • Drimia / chemistry*
  • Drimia / classification
  • Magnetic Resonance Spectroscopy
  • Molecular Structure
  • Plant Roots / chemistry

Substances

  • 12alpha,14beta-dihydroxy-2alpha,3beta-(tetrahydro-3',5'-dihydroxy-4'-methoxy-6'-methyl-2H-pyran-2',4'-diylbisoxy)-card-4,20-dienolid
  • Cardenolides