TY - JOUR T1 - Triterpenes from Euphorbia rigida JF - Pharmacognosy Research Y1 - 2010 A1 - Noureddine Gherraf A1 - Amar Zellagui A1 - Naglaa S Mohamed A1 - Taha A Hussien A1 - Tarik A Mohamed A1 - Mohamed-Elamir F Hegazy A1 - Salah Rhouati A1 - Mahmoud F M Moustafa A1 - Magdi A El-Sayed A1 - Abou El-Hamd H Mohamed KW - Cycloartan triterpene KW - Euphorbia rigida KW - Euphorbiaceae AB -

Phytochemical studies of the aerial parts of Euphorbia rigida afforded three triterpenes: betulin (1), cycloart-23Z-ene-3, 25-diol (2) and cycloartan-3, 24, 25-triol (3), firstly isolated from this plant. The structures and relative stereochemistry were determined on the basis of extensive spectroscopic analyses, including 1D and 2D NMR experiments (1H NMR, 13C NMR, COSY, NOESY, HMQC and HMBC).

VL - 2 IS - 3 ER -