Secondary metabolites of three endemic Centaurea L. species

Secondary metabolites of three endemic Centaurea L. species

The aerial parts of three endemic Centaurea L. species, namely C. tomorosii Micevski, C. soskae Hayek and C. galicicae Micevski, afforded sesquiterpene lactone cnicin (1) and seven flavonoids: apigenin (2), isokaempferide (3), hispidulin (4), eupatorin (5), cirsimaritin (6), santaflavone (7) and sal...

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Veröffentlicht in:Journal of the Serbian Chemical Society 2014, Vol.79 (11), p.1355-1362
Hauptverfasser: Tesevic, Vele, Aljancic, Ivana, Milosavljevic, Slobodan, Vajs, Vlatka, Djordjevic, Iris, Jadranin, Milka, Menkovic, Nebojsa, Matevski, Vlado
Format: Artikel
Sprache:eng
Schlagworte:
Centaurea
cnicin
Flavonoids
Metabolites
NMR
NMR spectroscopy
Nuclear magnetic resonance
Quantitative analysis
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Zusammenfassung:The aerial parts of three endemic Centaurea L. species, namely C. tomorosii Micevski, C. soskae Hayek and C. galicicae Micevski, afforded sesquiterpene lactone cnicin (1) and seven flavonoids: apigenin (2), isokaempferide (3), hispidulin (4), eupatorin (5), cirsimaritin (6), santaflavone (7) and salvigenin (8). The structures of the isolated compounds were determined by UV, 1H NMR and 13C NMR spectroscopy and HR-ESI-MS spectrometry. 1H NMR spectroscopy was used as a method for quantitative analysis of sesquiterpene lactone cnicin.
ISSN:0352-5139
1820-7421
DOI:10.2298/JSC140318048T