Lupane Type Triterpene Isolated from the Leaves of Thecacoris Annobonea (Euphorbiaceae)

Journal Title: JOURNAL OF ADVANCES IN CHEMISTRY - Year 2013, Vol 5, Issue 2

Abstract

A new lupane type triterpene (1), together with betulinic acid (2), friedelin (3), aristolochic acid I (4), alpinumisoflavone (5) and 4’-O-methylepinumisoflavone (6) have been isolated from the leaves of Thecacoris annobonea. The structure of the new compound was elucidated on the basis of 1 and 2D NMR experiments. The isolated compounds were evaluated for their phytotoxicity and antimicrobial activity. 1 exhibited significant antimicrobial activity at 30 μg/ml and compounds 1, 2, 3, 4, 5 and 6 inhibited root growth lettuce at 100 μg/ml. 

Authors and Affiliations

Herve Martial Poumale Poumale, Alphonsine Nkapwa Guedem, Louis Pergaud Sandjo, Bonaventure Tchaleu Ngadjui, Yoshihito Shiono

Keywords

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  • EP ID EP652590
  • DOI 10.24297/jac.v5i2.2659
  • Views 174
  • Downloads 0

How To Cite

Herve Martial Poumale Poumale, Alphonsine Nkapwa Guedem, Louis Pergaud Sandjo, Bonaventure Tchaleu Ngadjui, Yoshihito Shiono (2013). Lupane Type Triterpene Isolated from the Leaves of Thecacoris Annobonea (Euphorbiaceae). JOURNAL OF ADVANCES IN CHEMISTRY, 5(2), 695-701. https://www.europub.co.uk/articles/-A-652590