Four new triterpenoid saponins from Ardisia gigantifolia Stapf. and their cytotoxic activity.

Abstract:

:Four new oleanane-type triterpenoid saponins, cyclamiretin A 3beta-O-alpha-L-rhamnopyranosyl-(1 --> 3)-[beta-D-xylopyranosyl-(1 --> 2)]-beta-D-glucopyranosyl-(1 --> 4)-[beta-D-glucopyranosyl-(1 --> 2)]-alpha-L-arabinopyranoside (1), cyclamiretin A 3beta-O-alpha-L-rhamnopyranosyl-(1 --> 3)-[beta-D-glucopyranosyl-(1 --> 3)-beta-D-xylopyranosyl-(1 --> 2)]-beta-D-glucopyranosyl-(1 --> 4)-[beta-D-glucopyranosyl-(1 --> 2)]-alpha-L-arabinopyranoside (2), cyclamiretin A 3beta-O-alpha-L-rhamnopyranosyl-(1 --> 3)-[beta-D-xylopyranosyl-(1 --> 2)]-beta-D-glucopyranosyl-(1 --> 4)-[beta-D-6-O-acetylglucopyranosyl-(1 --> 2)]-alpha-L-arabinopyranoside (3) and 3beta-O-[alpha-L-rhamnopyranosyl-(1 --> 3)-[beta-D-xylopyranosyl-(1 --> 2)]-beta-D-glucopyranosyl-(1 --> 4)-[beta-D-glucopyranosyl-(1 --> 2)]-alpha-L-arabinopyranoside]-16,28-dihydroxy-30-acetoxyoleana-12-en (4), along with one known triterpene saponin and ardisiacrispin A (5) were isolated from the rhizome of Ardisia gigantifolia. Their structures were established with the help of extensive spectroscopic techniques. Furthermore, the inhibitory effects of compounds on tumor cells (MTT based) in vitro were evaluated, and compounds 1, 2, and 5 showed potent anti-tumor activities.

journal_name

J Asian Nat Prod Res

authors

Wen P,Zhang XM,Yang Z,Wang NL,Yao XS

doi

10.1080/10286020802144719

subject

Has Abstract

pub_date

2008-09-01 00:00:00

pages

873-80

issue

9-10

eissn

1028-6020

issn

1477-2213

pii

905067712

journal_volume

10

pub_type

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