Steroids from the Aerial Parts of Artemisia princeps Pampanini
Three stigmastane-type sterols and one ergostane-type sterol were isolated from the ethyl acetate soluble fraction of the aerial parts of Artemisia princeps Pampanini (Sajuarissuk). From the results of physico-chemical data including NMR, MS and IR, the chemical structures of the compounds were determined as stigmasta-5,22-dien-3,β-ol (stigmasterol, 1),stigmast-5-en-3β-ol(β-sitosterol,2), 5β,8β-epidioxy-5β,8β-ergosta-6,22-dien-3β-ol(ergosterol peroxide, 3), and β-sitosterol 3-O-βD-glucopyranoside(daucosterol,4).