Sesquiterpene lactones from Centaurea helenioides Boiss

Grosheimin (1) and cynaropicrin (3) sesquiterpenes were isolated from the flowers of Centaurea helenioides Boiss., an endemic plant of Turkey. The products are known as they occur in another species, but they were isolated and identified for the first time from C. helenioides Boiss. In order to corr...

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Bibliographic Details
Published in:Turkish journal of chemistry 2006, Vol.30 (2), p.229-233
Main Authors: YAYLI, Nurettin, AYDIN, Ebru, BALTACI, Cemalettin, GÖK, Yaşar, ÜÇÜNCÜ, Osman
Format: Article
Language:English
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Summary:Grosheimin (1) and cynaropicrin (3) sesquiterpenes were isolated from the flowers of Centaurea helenioides Boiss., an endemic plant of Turkey. The products are known as they occur in another species, but they were isolated and identified for the first time from C. helenioides Boiss. In order to correlate spectral data of grosheimin, its acetyl derivative, 8a -acetyl grosheimin (2) was also prepared. Their structures were deduced by FT-IR, UV, 1D and 2D NMR, LC MS/MS, GC-mass spectra (EI), optical rotation, and chemical methods.
ISSN:1300-0527
1303-6130