Browsing by Subject "Haplopappus multifolius"

Now showing items 1-2 of 2

    • Antioxidant activity of coumarins and flavonols from the resinous exudate of Haplopappus multifolius 
      Torres, René; Faini, Francesca; Modak, Brenda; Zúñiga Urbina, Francisco; Labbé, Cecilia; Guerrero, Juan (PERGAMON-ELSEVIER SCIENCE LTD, 2006-05)
      The antioxidant activity of eight coumarins and two flavonols isolated from Haplopappus multifolius was studied with the DPPH radical method. Results show that a high concentration of phenolic coumarins and the presence ...
    • Two new O-geranyl coumarins from the resinous exudate of Haplopappus multifolius 
      Torres, René; Faini, Francesca; Delle Monache, Franco; Delle Monache, Giuliano (Elsevier, 2004)
      From the resinous exudate of leaves of Haplopappus multifolius two new coumarins were isolated and assigned the structures 6-hydroxy-7-(5′- hydroxy-3′,7′-dimethylocta-2′,6′-dien)-oxycoumarin (1) and 6-hydroxy-7-(7′-hydro ...