1. Laboratory of Pharmacognosy and Laboratory of Organic Chemistry, Faculty of Pharmacy, 27 Boulevard Jean Moulin, University Aix-Marseille II, 13385 Marseille Cedex 5, France, ESA 6009, University Aix-Marseille III, Avenue Escadrille Normandie Niemen, 13397 Marseille Cedex 20, France, and INRA, Center of Research of Toulouse, Laboratory of Xenobiotics, 180 Chemin de Tournefeuille, BP 3, 31931 Toulouse, France