Triterpenoid Saponins fromSchefflera arboricola
Autor: | Yuan-Chao Li, Fu-Jiang Guo, Pin Chen, Shu-Ying Peng |
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Rok vydání: | 2006 |
Předmět: | |
Zdroj: | Helvetica Chimica Acta. 89:468-474 |
ISSN: | 1522-2675 0018-019X |
Popis: | Four new triterpenoid saponins, named scheffarboside A – D (1–4), along with five known saponins were isolated from the stems of Schefflera arboricola. The structures of the four new saponins were determined as 3-O-(O-β-glucuronopyranosyl-(1 3)-O-α-rhamnopyranosyl-(1 2)-α-arabinopyranosyl)oleanolic acid (1), 3-O-(O-α-arabinopyranosyl-(1 4)-O-α-arabinopyranosyl-(1 3)-O-α-rhamnopyranosyl-(1 2)-α-arabinopyranosyl)oleanolic acid (2), 3-O-(O-α-arabinopyranosyl-(1 4)-O-α-arabinopyranosyl-(1 3)-O-α-rhamnopyranosyl-(1 2)-α-arabinopyranosyl)hederagenin (3), 3-O-(O-α-arabinopyranosyl-(1 4)-O-α-arabinopyranosyl-(1 3)-O-α-rhamnopyranosyl-(1 2)-α-arabinopyranosyl)oleanolic acid O-α-rhamnopyranosyl-(1 4)-O-β-glucopyranosyl-(1 6)-β-glucopyranosylester (4), respectively, on the basis of spectroscopic and chemical degradation methods. |
Databáze: | OpenAIRE |
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