Guaianolides and eudesmanolides from Centaurea ornata.
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.
Department of Organic Chemistry, F.C. Químicas, Salamanca University, Spain.
J J
JJ
Navarro
M C
MC
Caballero
J R
JR
Morán
M
M
Medarde
M
M
Grande
J
J
Anaya
D001547:Benzaldehydes / Q000302:isolation & purification; D003374:Coumarins / Q000302:isolation & purification; D047309:Flavones; D005419:Flavonoids / Q000302:isolation & purification; D007783:Lactones / Q000302:isolation & purification*; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D010944:Plants / Q000032:analysis*; D012717:Sesquiterpenes / Q000302:isolation & purification*; D045787:Sesquiterpenes, Eudesmane
D001547:Benzaldehydes; D003374:Coumarins; D047309:Flavones; D005419:Flavonoids; D007783:Lactones; D012717:Sesquiterpenes; D045787:Sesquiterpenes, Eudesmane; C016722:santamarine; C014049:salvigenin; C065894:dihydroreynosin; C065751:5-methyl-8-hydroxycoumarin; C100058:vanillin