TRITERPENOIDS AND OTHER COMPOUNDS FROM EUPHORBIA-ESULA AND E-PETIOLATA

In our phytochemical investigation of triterpenoids from the genus Eup horbia esula and E. petiolata, twelve compounds have been isolated and identified as a new triterpene, 23,25-O-isopropylidene-cycloartanol 1 and a new naturally occurring acylglucosylsterol, osterol-3-O-(6'-lin olenoyl)-beta-D-glucopyranoside 2, together with ten known compounds, 3 beta-hydroxyfriedal-7-ene 3, cycloart-23-ene-3 beta,25-diol 4, cyclo artan-24,25-epoxy-3 beta-ol 5, beta-sitosterol 6, beta-daucosterol 7, cycloartenol 8, cycloartan-3 beta,24 xi,25-triol 9, Ingenol-3,5,20-tri acetate 10, oleanic acid 11, and glyceryl Linolenate 12 on the basis o f spectroscopic methods and chemical evidences.