A new flavonolignan from milk thistle ().

A new flavonolignan, sonyamandin , along with other known compounds was isolated from the aerial parts and seeds extracts of (milk thistle) collected from Jordan. The known ones are ursolic acid , oleanolic acid , maslinic acid oleic acid , β-sitosterol , β-, sitosteryl glucoside apigenin , kaempferol-3-O-rhamnoside , apigenin-7-O-β-D-glycoside , isosylibin A , isosylibin B and silybin B . The absolute stereochemistry of was confirmed by 2D NMR and CD analysis.