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 Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Two new and two known triterpenoid saponins were isolated from the stem bark of Pentaclethra macroloba. Their structures were determined using a combination of homo- (1D 1H NMR, 13C NMR-HBBD and 13C NMR-DEPT) and heteronuclear 2D NMR techniques (1H-1H-COSY, 1H-1H-TOCSY, 1H-1H-NOESY, HMQC and HMBC), ESIMS and chemical methods. The structures of the two new pentacyclic triterpenoid saponins were established as 3b-O-{[b-D-glucopyranosyl-(1®3)-a-L-rhamnopyranosyl-(1®2)],b-D- glucopyranosyl-(1®4)}-a-L-arabinopyranosylhederagenin (3) and 3b-O-{[b-D-glucopyranosyl-(1®4)-b-D-glucopyranosyl-(1®3)-a-L-rhamnopyranosyl- (1®2)],b-D- glucopyranosyl(1®4)}-a-L-arabinopyranosyloleanolic acid (4).

Triterpenoid saponins from stem bark of Pentaclethra macroloba