Abstract
A detailed study of the cardiac glycosides of Convallaria majalis L. allowed the detection and structure determination of ten new cardenolides. Four
glycosides of bipindogenin (bipindogenin-3-0-6′-deoxy-β-D-guloside, bipindogenin-3-0-6′-deoxy-β-D-alloside,
bipindogenin-3-0-6′-deoxy-β-D-allosido-α-L-rhamnoside and bipindogenin-3-0-β-D-alloside)
were isolated as well as three derivatives of sarmentologenin (sarmentologenin-3-0-α-L-rhamnoside
= sarhamnoloside, sarmentologenin-3-0-6′ -deoxy-β-D-guloside and sarmentologenm-3-0-6′-deoxy-β-D-alloside)
and three isomeric glycosides of sarmentosigenin A (sarmentosigenin-3-0-α-L-rhamnoside
= tholloside, sarmentosigenin-3-0-6′-deoxy-β-D-guloside and sarmentosigenin-3-0-6′-deoxy-β-D-alloside).
The occurrence of allose, and of the disaccharide rhamnosido-6-deoxy-allose, resp.
as the sugar moieties of cardiac glycosides, was detected for the first time.
Key Word Index
Convallaria majalis - Liliaceae - Cardenolides - Glycosides of bipindogenin - sarmentologenin
- sarmentosigenin
