Sesquiterpene lactones and other constituents from Hymenoxys richardsonii and H. subintegra
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A A Ahmed1, O Spring, M H el-Razek
1Department of Chemistry, Faculty of Science, El-Minia University, Egypt.
Phytochemistry
|July 1, 1995
Abstract:
Two Hymenoxys species afforded, in addition to known compounds, three new pseudoguaianoloides, a new sesquiterpene glucoside and a new butyrolactone. This is the first report of an eudesmane from the genus Hymenoxys. The structures were elucidated by high-field NMR and chemical transformations.