Dr. Mohammad A. Khanfar Assistant Professor of Drug Design and Medicinal Chemistry Dept. of Pharmaceutical Sciences Faculty of Pharmacy University of Jordan Amman. PostCode: 11942 Jordan Mobile Phone: 00962788697131 Fax: 0096265300250 email: m_khanfar@ju.edu.jo Home Page: http://www.ju.edu.jo/sites/Academic/m_khanfar