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Title: Beibersteneolide-a and -b: Two new sesquiterpene lactones from <i style="">Achillea beiberstenii</i>
Authors: Howiriny, Tawfeq A Al
Mossa, Jaber S
Ahmed, Bahar
Keywords: Beibersteneolide
<i style="">Achillea beiberstenii</i>
sesquiterpene lactones
Issue Date: Dec-2005
Publisher: CSIR
Series/Report no.: <b>Int</b>.<b>Cl</b>.<b><sup>7</sup> C 07 D</b>
Abstract: The aerial part of <i style="">Achillea beiberstenii</i> (Compositae) has afforded two new sesquiterpene lactones, characterized as 3<img src='/image/spc_char/alpha.gif' border=0>,9<img src='/image/spc_char/beta.gif' border=0>-diacetoxy-1b,10-epoxy-5(4)-en-germacran-6<img src='/image/spc_char/beta.gif' border=0>,12-olide, named as beibersteneolide-a <b style="">1</b>, and 4,9<img src='/image/spc_char/beta.gif' border=0>-dihydroxy-2(1),6(5),11(13)-triene-guaian–7<img src='/image/spc_char/alpha.gif' border=0>,12-olide, designated  as beibersteneolide-b <b style="">2</b>. 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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