Isolation and chromatography of 15-deoxyrepin and 25 other sesquiterpene lactones from Centaurea bella Trautv

Gerard Nowak

Abstract


24 guaianolides and I germacranolide have been found so far in Centaurea bella Trautv. 15-deoxyrepin is another guaianolide, obtained in a similar way as previous compounds - by column chromatography, and identified by means of spectral analysis (1H NMR, MS, IR). Proposed are chromatographic systems allowing the separation of two types of guaianolides: with an ester at C-2 - characteristic for C. bella and at C-8 - typical for other species of the genus Centaurea L.

Keywords


sesquiterpene lactones; Centaurea; Compositae; 15-deoxyrepin

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DOI: https://doi.org/10.5586/asbp.1993.006

Journal ISSN:
  • 2083-9480 (online)
  • 0001-6977 (print; ceased since 2016)
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Polish Botanical Society