H. Ripperger et U. Himmelreich, ANGUIVINE AND ISOANGUIVINE, STEROID ALKALOID GLYCOSIDES FROM SOLANUM-ANGUIVI, Phytochemistry, 37(6), 1994, pp. 1725-1727
In addition to solamargine, two new steroid alkaloid glycosides, angui
vine and isoanguivine, have been isolated from the roots of Solanum an
guivi, the structures of which have been elucidated as (25R)-3 ylopyra
nosyl-(1-->3)]-beta-D-glucopyranosyloxy}-22 alpha N-spirosol-5-ene and
(25R)-3 nosyl-(1-->3)-beta-beta-D-galactopyranosyloxyl}-22 alpha N-sp
irosol-5-ene.