Steroid, triterpenoid, and flavonoid constituents of Euphorbia pulcherrima Villd. leaves
Khafagy, S.; Nazmi, N.; Salam, N.A.; Eldin, A.S.
Acta Pharmaceutica Jugoslavica 30(2): 103-107
Light petroleum, ether, and alcoholic extracts of Euphorbia pulcherrima Willd. leaves, yielded 3 teriterpenes, 2 steroids and 3 flavonoids. By using UV, IR, NMR, and MS spectral methods as well as available standard sample comparison, the compounds were found to be germanicol acetate (yield 0.25%), germanicol (0,025%), brein (0.0054%), (3-sitosterol (0.042%), (3-sito steryl 3-D-glucoside (0.01 %), kaempferol 3-0-glucoside (0.013%), kaempferol 3-0 -rutinoside (0.11%) and rutin (0.012%). The first two compounds exhibited moulting activity when assayed on S podoptera littoralis Bosid. (cotton leaf worm).