دورية
Dihydrofurochromones from Prionosciadiumthapsoides
| العنوان: | Dihydrofurochromones from Prionosciadiumthapsoides |
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| المؤلفون: | Torres-Valencia, J. Martín, Chávez-Ríos, O. Esther, Cerda-García-Rojas, Carlos M., Burgueño-Tapia, Eleuterio, Joseph-Nathan, Pedro |
| المصدر: | Journal of Natural Products; December 2008, Vol. 71 Issue: 11 p1956-1960, 5p |
| مستخلص: | Chemical investigations of Prionosciadium thapsoidesroots led to the isolation of the new dihydrofurochromones (S)-(+)-4′-O-angeloyl-5-O-methylvisamminol (1) and (S)-(+)-4′-O-senecioyl-5-O-methylvisamminol (2), together with the known coumarins jatamansin, buchtormin, isopteryxin, isosamidin, psoralen, and bergapten. The structures of 1and 2were determined by 1D and 2D NMR experiments, and their absolute configuration was established by chemical correlation with (+)-5-O-methylvisamminol (3), whose structure was secured by single-crystal X-ray diffraction analysis and its absolute configuration was established as Sby vibrational circular dichroism spectroscopy in comparison to DFT B3LYP/DGDZVP calculations. |
| قاعدة البيانات: | Supplemental Index |
Find this issue from the American Chemical Society | تدمد: | 01633864 15206025 |
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| DOI: | 10.1021/np800387w |