A Diosgenin Tetrasaccharide from Cestrum nocturnum
| Autor: | Roshan Ahmad, Fehmida T. Baqai, Viqar Uddin Ahmad |
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| Rok vydání: | 1995 |
| Předmět: | |
| Zdroj: | Zeitschrift für Naturforschung B. 50:1104-1110 |
| ISSN: | 1865-7117 0932-0776 |
| Popis: | A new monodesmosidic spirostanol glycoside extracted from the fresh leaves of Cestrum nocturnum was identified as spirost-5-ene-3-ol, [3β,25R]-3-O-[{α-L-rhamnopyranosyl-(1→4)- α-L-rhamnopyranosyl-(1→2)}-α-L-rhamnopyranosyl-(1→4)-β-D-glucopyranoside. The name proposed for this saponin is nocturnoside B. The structure elucidation was done on the basis of 1 D and 2 D spectroscopic studies [DEPT. HeteroCOSY, HMBC, COSY-45°, HOHAHA ] and chemical analysis. |
| Databáze: | OpenAIRE |
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