Abstract
Four sesquiterpene lactones and three other compounds have been isolated from the EtOH-H2O-soluble fraction of a CHCl3 extract of Centaurea ornata. A new grosshemin derivative 3 is described, and the stereochemistry of natural 11-epi-dihydroreynosin [2] is revised.
MeSH terms
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Benzaldehydes / isolation & purification
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Coumarins / isolation & purification
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Flavones*
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Flavonoids / isolation & purification
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Lactones / isolation & purification*
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Magnetic Resonance Spectroscopy
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Molecular Structure
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Plants / analysis*
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Sesquiterpenes / isolation & purification*
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Sesquiterpenes, Eudesmane*
Substances
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Benzaldehydes
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Coumarins
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Flavones
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Flavonoids
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Lactones
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Sesquiterpenes
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Sesquiterpenes, Eudesmane
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santamarine
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salvigenin
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dihydroreynosin
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5-methyl-8-hydroxycoumarin
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vanillin