Triterpenoid Saponins fromSchefflera arboricola

Autor: Yuan-Chao Li, Fu-Jiang Guo, Pin Chen, Shu-Ying Peng
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