Steroidal glycosides from Agave cantala☆
| Autor: | Om Prakash Sati, Pawan K. Agrawal, Raghunath S. Thakur, G. C. Uniyal |
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| Rok vydání: | 1990 |
| Předmět: |
chemistry.chemical_classification
Magnetic Resonance Spectroscopy Plants Medicinal Stereochemistry medicine.medical_treatment Molecular Sequence Data Saponin Glycoside Plant Science General Medicine Horticulture Fast atom bombardment Carbon-13 NMR Mass spectrometry Biochemistry Steroid Carbohydrate Sequence chemistry Carbohydrate Conformation Spirostans medicine Molecule Glycosides Molecular Biology Chemical decomposition |
| Zdroj: | Phytochemistry. 29:937-940 |
| ISSN: | 0031-9422 |
| DOI: | 10.1016/0031-9422(90)80050-q |
| Popis: | Two new steroidal glycosides, agaveside A and B, isolated from the fruits of Agave cantala were characterized as 3 beta-O-[beta-D-xylopyranosyl-(1----2),beta-D-xylopyranosyl-(1----3), beta-D-glucopyranosyl-(1----3)-[beta-D-xylopyranosyl-(1----3)-beta-D- galactopyranosyl-(1----2)]-beta-D-glucopyranosyl]-(25R)-5 alpha-spirostane and 3 beta-O-[beta-D-xylopyranosyl-(1----2), beta-D-xylopyranosyl-(1----3)-beta-D-glucopyranosyl-(1----3)- [beta-D-galactopyranosyl-(1----2)]-beta-D-glucopyranosyl]-(25R)-5 alpha-spirostane. The structures were elucidated by a combination of 13CNMR spectroscopy, chemical degradation and fast atom bombardment mass spectrometry. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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