3-alpha-oleanane-type triterpene glycosyl esters from leaves of Acanthopanax spinosus

Miyakoshi, M.; Ida, Y.; Isoda, S.; Shoji, J.

3-alpha-oleanane-type triterpene glycosyl esters from leaves of Acanthopanax spinosus

1993

Miyakoshi, M. | Ida, Y. | Isoda, S. | Shoji, J.

Three novel 3 alpha-hydroxy-oleanane-type triterpene oligoglycosyl esters, spinoside C1, C4 and C5, were isolated from the leaves of Acanthopanax spinosus. The structures were established to be 28-O-alpha-L-rhamno-pyranosyl(1 leads to 4)-beta-D-glucopyranosyl(1 leads to 6)-beta-D-glucopyranosyl esters of 3 alpha,29-dihydroxy-olean-12-ene-28-oic acid, 3 alpha,29-dihydroxy-23-oxo-olean-12-ene-28-oic acid and 3 alpha,23,29-trihydroxy-olean-12-ene-28-oic acid.

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