1. a Chemistry Department, Faculty of Science , University of Jordan , Amman, Jordan
2. b Chemistry Department, Faculty of Science , University of Jordan , Amman, Jordan
3. c Chemistry Department, Faculty of Science , University of Jordan , Amman, Jordan
4. d Laboratoire de Bactériologie , Hôpital Arnaud de Villeneuve, 371, Avenue Doyen Gaston Giraud 34295-Montpellier Cedex, France
5. e UPRES Pharmacologie et Biomolécules, Université de Montpellier I , 15, Avenue C. Flahaut, 34060 – Montpellier, France