The NMR studies on two new furostanol saponins from Agave sisalana leaves
Copyright 2006 John Wiley & Sons, Ltd.
| Veröffentlicht in: | Magnetic resonance in chemistry : MRC. - 1985. - 44(2006), 12 vom: 20. Dez., Seite 1090-5 |
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| 1. Verfasser: | |
| Weitere Verfasser: | , , , , , |
| Format: | Aufsatz |
| Sprache: | English |
| Veröffentlicht: |
2006
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| Zugriff auf das übergeordnete Werk: | Magnetic resonance in chemistry : MRC |
| Schlagworte: | Journal Article 26-glucopyranosyl-22xi-hydroxyfurost-12-one-3-yl-O-rhamnopyranosyl-1-4-glucopyranosyl-1-3-O-(O-glucopyranosyl-1-2)-O-glucopyranosyl-1-4-galactopyranoside 26-glucopyranosyl-22xi-hydroxyfurost-5-en-12-one-3-yl-O-rhamnopyranosyl-1-4-glucopyranosyl-1-3-O-(O-glucopyranosyl-1-2)-O-glucopyranosyl-1-4-galactopyranoside Saponins Sterols furostanol I 90288-44-1 |
| Zusammenfassung: | Copyright 2006 John Wiley & Sons, Ltd. The detailed NMR studies and full assignments of the 1H and 13C spectral data for two new furostanol saponins isolated from Agave sisalana leaves are described. Their structures were established using a combination of 1D and 2D NMR techniques including 1H, 13C, 1H-1H COSY, TOCSY, HSQC, HMBC and HSQC-TOCSY, and also FAB-MS spectrometry and chemical methods. The structures were established as (25S)-26-(beta-D-glucopyranosyl)-22 xi-hydroxyfurost-12-one-3beta-yl-O-alpha-L-rhamnopyranosyl-(1-->4)-beta-D-glucopyranosyl-(1-->3)-O-[O-beta-D-glucopyranosyl-(1-->2)]-O-beta-D-glucopyranosyl-(1-->4)-beta-D-galacto- pyranoside (1) and (25S)-26-(beta-D-glucopyranosyl)-22xi-hydroxyfurost-5-en-12-one-3beta-yl-O-alpha-L-rhamno- pyranosyl-(1-->4)-beta-D-glucopyranosyl-(1-->3)-O-[O-beta-D-glucopyranosyl-(1-->2)]-O-beta-D-glucopyranosyl- (1-->4)-beta-D-galactopyranoside (2) |
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| Beschreibung: | Date Completed 05.09.2007 Date Revised 06.11.2006 published: Print Citation Status MEDLINE |
| ISSN: | 0749-1581 |