New sources of steroid sapogenins - XIV: 25S-ruscogenin and sansevierigenin, two new spirostan sapogenins from Sansevieria trifasciata

New sources of steroid sapogenins - XIV: 25S-ruscogenin and sansevierigenin, two new spirostan sapogenins from Sansevieria trifasciata - Tetrahedron, 28(5), p.1289-1297, 1972 .

From the leaves of Sansevieria trifasciata Prain ß-sitosterol, ruscogenin (IIIa), neoruscogenin (Ia), and the two new spirostan sapogenins 25S-ruscogenin (IIa)and sansevierigenin (Va)have been isolated and the structures determined by chemical and spectroscopic methods.