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(Last modification: 21. November 2010)
Zurück zur Deutschen Seite über Vitis vinifera
Natürliche Stilbene: 1995 bis Ende of 2008 in Vitis vinifera neu beschrieben
Key review: Shen et al., 2009
Anmerkung: Die meisten dieser Substanzen wurden aus Stämmen, Rinde, oder Zellkulturen isoliert. Es scheint meist nicht klar zu sein, ob sie in den Trauben für die Weinherstellung vorhanden sind.
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Zurück Ito, J., Niwa, M. Two new hydroxystilbenoids named vitisin C and viniferal were isolated from Vitis vinifera 'Kyohou' and the structures were characterized on the basis of spectroscopic and chemical evidence. Furthermore, the absolute configurations of (-)-vitisin B and (-)-cis- vitisin B as well as (+)-vitisin C and (-)-viniferal were determined by the synthetic evidence from (+)-[var epsilon]-viniferin. Zurück Ito, J., Niwa, M., Oshima, Y. A new hydroxystilbene tetramer named isohopeaphenol was isolated from the cork of Vitis vinifera 'Kyohou' and its structure was elucidated on the basis of spectroscopic evidence. Zurück Ito, J., Takaya, Y., Oshima, Y., Niwa, M. Three new oligostilbenes having a benzofuran moiety, viniferifuran, (+)-vitisifuran A and (-)-vitisifuran B, were isolated from Vitis vinifera 'Kyohou'. The structures of these oligostilbenes including the absolute configuration were elucidated by spectroscopic and chemical methods. Furthermore, these were chemically transformed from (+)-epsilon-viniferin, (+)- vitisin A and (-)-vitisin B, respectively, whose absolute configurations are known. Zurück Waffo-Téguo, P., Lee, D., Cuendet, M., Mérillon, J. M., Pezzuto, J. M., Kinghorn, A. D. Two new stilbene dimer glucosides, resveratrol (E)-dehydrodimer 11-O-ß-D-glucopyranoside (1) and resveratrol (E)-dehydrodimer 11'-O-ß-D-glucopyranoside (2), were isolated together with the known resveratrol (E)-dehydrodimer (3) and pallidol (4) from Vitis vinifera cell cultures. The structures and stereochemistry of the new compounds were determined on the basis of spectroscopic data analysis. Compounds 1 and 2 are dimers that belong to a new type of oligostilbene formed from a resveratrol unit and a resveratrol glucoside unit. Compounds 1 and 3 exhibited nonspecific inhibitory activity against cyclooxygenase-1 and -2, with IC(50) values in the range of 5 microM, whereas compound 4 was approximately 10-fold less active. Zurück Yan, K. X., Terashima, K., Takaya, Y., Niwa, M. A novel stilbenetetramer named (+)-viniferol A was isolated from the stem of Vitis vinifera [`]Kyohou' and the structure was elucidated on the basis of the spectral evidence. Zurück Yan, K. X., Terashima, K., Takaya, Y., Niwa, M. Two new stilbenetetramers named (+)-viniferol B and (+)-viniferol C having a bicyclo[5.3.0]decane ring system were isolated from the stem of Vitis vinifera 'Kyohou' and the structures were elucidated on the basis of the spectral evidence. Zurück Takaya, Y., Terashima, K., Yan, K. X., Niwa, M. A new stilbenetrimer named (+)-viniferol D having a bicyclo[5.3.0]decane ring system was isolated from the stem of Vitis vinifera 'Kyohou' and the structure was elucidated on the basis of the spectral evidence. The biogenesis was also discussed. Zurück Fuji, F., He, Y. H., Terashima, K., Takaya, J., Niwa, M. Three new stilbeneoligomers named (+)-viniferol E, (+)-viniferether A and (+)-viniferether B were isolated from the roots of Vitis vinifera 'Kyohou' and the structures were elucidated on the basis of the spectral evidence. Zurück
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