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Sesquiterpene Lactones from Achillea chrysocoma and Achillea coarctata Milka Todorova and Elena Tsankova*

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Sesquiterpene Lactones from Achillea chrysocoma and Achillea coarctata

Milka Todorova and Elena Tsankova*

Institute of Organic Chemistry with Center of Phytochemistry, Bulgarian Academy of Sci- ences, 1113 Sofia, Bulgaria, Fax: 003592 700 225.

E-mail: tsankova@orgchm.bas.bg

* Author for correspondence and reprint requests

Z. Naturforsch.56 c,957Ð960 (2001); received May 25/July 18, 2001 Achillea chrysocoma, Achillea coarctata, Sesquiterpene Lactones

The aerial parts ofA. chrysocomaandA. coarctataafforded 22 and 9 sesquiterpene lac- tones, respectively. All the compounds described are new for the studied species. The lactones 5,6and12are new for the genusAchillea.

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