1. Laboratory of Applied Organic Chemistry, Bioorganic Chemistry Group, Sciences Faculty, Chemistry Department, Badji Mokhtar-Annaba University, Box 12, 23000 Annaba, Algeria
2. Research Unit in Medicinal Plants, URPM, Attached to Research Center of Biotechnology, CRBt, 3000 Laghouat, 25000 Constantine, Algeria
3. Aix Marseille Univ., CNRS, Marseille F-13397, France