Highly Oxygenated Guaianolides and Eudesman-12-oic Acids from Balsamorhiza sagittata and Balsamorhiza macrophylla

Abou El-Hamd H. Mohamed; Ahmed A. Ahmed; Eckhard Wollenweber; Bruce Bohm; Yoshinori Asakawa

doi:10.1248/cpb.54.152

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Highly Oxygenated Guaianolides and Eudesman-12-oic Acids from Balsamorhiza sagittata and Balsamorhiza macrophylla

Abou El-Hamd H. Mohamed, Ahmed A. Ahmed, Eckhard Wollenweber, Bruce Bohm, Yoshinori Asakawa

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Keywords: Balsamorhiza sagittata, Balsamorhiza macrophylla, Asteraceae, highly oxygenated guaianolide, eudesmanic acid

JOURNAL FREE ACCESS

2006 Volume 54 Issue 2 Pages 152-155

DOI https://doi.org/10.1248/cpb.54.152

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Abstract

Investigation of lipophilic exudates from the aerial parts of Balsamorhiza sagittata and B. macrophylla afforded three new highly oxygenated guaianolides (1—3), in addition to known guaianolides, germacranolide and eudesmane acids. Their chemical structures were elucidated by spectroscopic methods and the data for the compounds are reported in Tables 1 and 2 and in Experimental.

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