English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The saponin fraction from the fresh leaves of Euiptelea polyandra Sieb. et Zucc. was found to exhibit potent gastroprotective activity. Fourteen new nortriterpene saponins called eupteleasaponins were isolated from the saponin fraction with gastroprotective activity. The structures of eupteleasaponins I, I1, III, IV, V, and V acetate were determined on the basis of chemical and physicochemical evidence as 3-O-alpha-L-rhamnopyranosyl(1--&gt;2)-beta-D-glucopyranosyl(1 --&gt;3)-beta-D-xylopyranosylakebonoic acid 28-O-beta-D-glucopyranosyl ester, 3-O-alpha-L-rhamnopyranosyl(1--&gt;2)-[alpha-L-rhamnopyranosyl(1 --&gt;4)-beta-D-glucopyranosyl(1--&gt;3)-beta-D-xylopyranosylakebonoic acid 28-O-beta-D- D-glucopyranosyl(1--&gt;3)-beta-D-xylopyranosylakebonoic acid 28-O-beta-D-glucopyranosyl ester, 3-O-alpha-L-rhamnopyranosyl(1--&gt;2)-alpha-L-rhamnopyranosyl(1 --&gt;4)-beta-D-glucopyranosyl(1--&gt;3)-beta-D-xylopyranosylakebonoic acid 28-O-beta-D-glucopyranosyl ester, 3-O-alpha-L-rhamnopyranosyl(1 --&gt;2)-[alpha-L-arabinopyranosyl(1--&gt;4)-alpha-L-rhamnopyranosyl(1-- &gt;4)]-beta-D- glucopyranosyl(1--&gt;3)-beta-D-xylopyranosylakebonoic acid 28-O-beta-D-glucopyranosyl ester, 3-O-alpha-L-rhamnopyranosvl(1--&gt;2)-[alpha-L-arabinopyranosyl (1 --&gt;4)-beta-L-rhamnopyranosyl(1 --&gt;4)]-beta-D-glucopyranosyl(1 --&gt;3)-beta-D-xylopyranosylakebonoic acid, 3-O-alpha-L-rhamnopyranosyl(1 --&gt;2)-beta-D-glucopyranosvl(1--&gt;3)-beta-D-xylopyranosyleupteleo genin, and 3-O-alpha-L-rhamnopyranosyl(1--&gt;2)-6"-O-acetyl-gamma-D-glucopyranosyl(1 --&gt;3)-beta-D-xylopyranosyleupteleogenin.

chemical and pharmaceutical bulletin/chemical and pharmaceutical bulletin

Bioactive Saponins and Glycosides. XVI. Nortriterpene Oligoglycosides with Gastroprotective Activity from the Fresh Leaves of Euptelea polyandra SIEB. et Zucc. (1). Structures of Eupteleasaponins I, II, III, IV, V, and V Acetate.