TRITERPENE GLYCOSIDES OF Astragalus AND THEIR GENINS XL. CYCLOCARPOSIDE B FROM Astragalus coluteocarpus

Article abstract of DOI:10.1007/BF00630174

In addition to cyclosieversigenin, β-sitosterol β-D-glucopyranoside, and cyclocarposide, we have isolated another three glycosides of triterpene nature from the epigeal part of the plant Astragalus coluteocarpus Boiss. (Leguminosae).On the basis of chemical transformations and spectral characteristics, the structure of one of new glycosides, which we have called cyclocarposide B, has been established as 20R,24S-epoxycycloartane-3β,6α,17β,25-tetraol 6-O-α-L-(2-O-acetylrhamnopyranoside) 3-O-β-D-xylopyranoside.