A new eremophilanolide from Senecio sinuatus Gilib
Copyright 2007 John Wiley & Sons, Ltd.
| Veröffentlicht in: | Magnetic resonance in chemistry : MRC. - 1985. - 45(2007), 6 vom: 15. Juni, Seite 457-62 |
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| 1. Verfasser: | |
| Weitere Verfasser: | , , |
| Format: | Aufsatz |
| Sprache: | English |
| Veröffentlicht: |
2007
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| Zugriff auf das übergeordnete Werk: | Magnetic resonance in chemistry : MRC |
| Schlagworte: | Journal Article Research Support, Non-U.S. Gov't 3beta-angeloyloxy-6beta-hydroxyeremophil-1(10)-en-8beta,12-olide Carbon Isotopes Hexanes Sesquiterpenes Solvents Triterpenes eremophilenolide Hydrogen |
| Zusammenfassung: | Copyright 2007 John Wiley & Sons, Ltd. From the hexane extracts of Senecio sinuatus roots, the new 3beta-angeloyloxy-6beta-hydroxyeremophil-1(10)-en-8beta,12-olide (3), along with the known compounds 3beta-angeloyloxy-6beta-hydroxyeremophil-1(10)-ene (1), 3beta-senecioyloxy-6beta-hydroxyeremophil-1(10)-ene (2), and 3beta-angeloyloxy-6beta,8alpha-dihydroxyeremophil-1(10)-en-8beta,12-olide (4), were isolated. Complete 1H and 13C NMR chemical shift assignments of 1-4 were achieved using one- and two-dimensional NMR techniques, including gHMQC and gHMBC experiments. A Monte Carlo search, followed by B3LYP/6-31G*DFT calculation, provided the theoretical conformations of the eremophilane rings, which were in agreement with results derived from 1H-1H NMR coupling constant analysis, and confirmed by NOESY experiments |
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| Beschreibung: | Date Completed 20.08.2007 Date Revised 21.11.2013 published: Print Citation Status MEDLINE |
| ISSN: | 1097-458X |