Triterpenoid saponins from Ardisia crenata
| Autor: | Zhonghua Jia, Kazuo Koike, Taichi Ohmoto, Muyun Ni |
|---|---|
| Rok vydání: | 1994 |
| Předmět: |
Ardisicrenoside B
Magnetic Resonance Spectroscopy Stereochemistry Chemical structure Molecular Sequence Data Saponin Ardisia crenata Molecular Conformation Plant Science Horticulture Pharmacognosy Biochemistry Plant Roots Triterpenoid Triterpene Oleanolic Acid Molecular Biology chemistry.chemical_classification Plants Medicinal biology Chemistry Plant Extracts General Medicine Saponins biology.organism_classification Triterpenes Carbohydrate Sequence Two-dimensional nuclear magnetic resonance spectroscopy |
| Zdroj: | Phytochemistry. 37(5) |
| ISSN: | 0031-9422 |
| Popis: | Two novel triterpenoid saponins, ardisicrenoside A [3 beta-O-(alpha-L-rhamnopyranosyl-(1--2)-[beta-D-glucopyranosyl- (1--4)-[beta-D-glucopyranosyl-(1--2)]-alpha-L-arabinopyranosyl)- 13 beta,28-epoxy-16 alpha,30-oleananediol] and ardisicrenoside B [3 beta-O-(beta-D-xylopyranosyl-(1--2)-[beta-D- glucopyranosyl-(1--4)-[beta-D-glucopyranosyl-(1--2)]- alpha-L-arabinopyranosyl)-13 beta,28-epoxy-16 alpha,30-oleananediol] were isolated from the roots of Ardisia crenata. Two known triterpenoid saponins, ardisiacrispins A and B were also isolated from this source. Their structures were determined mainly by 2D NMR (COSY, HOHAHA, HETCOR, HMBC and ROESY) experiments. The aglycones are the new 13 beta,28-epoxy-3 beta,16 alpha,30-oleananetriol for ardisicrenosides A and B. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|