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Title: Beibersteneolide-a and -b: Two new sesquiterpene lactones from Achillea beiberstenii
Authors: Howiriny, Tawfeq A Al
Mossa, Jaber S
Ahmed, Bahar
Keywords: Beibersteneolide
Achillea beiberstenii
sesquiterpene lactones
Issue Date: Dec-2005
Publisher: CSIR
Series/Report no.: Int.Cl.7 C 07 D
Abstract: The aerial part of Achillea beiberstenii (Compositae) has afforded two new sesquiterpene lactones, characterized as 3,9-diacetoxy-1b,10-epoxy-5(4)-en-germacran-6,12-olide, named as beibersteneolide-a 1, and 4,9-dihydroxy-2(1),6(5),11(13)-triene-guaian–7,12-olide, designated  as beibersteneolide-b 2. The structures of the isolated compounds have been elucidated on the basis of spectral studies.
Description: 2538-2544
ISSN: 0975-0983(Online); 0376-4699(Print)
Appears in Collections:IJC-B Vol.44B(12) December 2005]

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