1. Department of Chemistry; College of Science; University of Basrah; Basrah Iraq
2. Department of Chemistry; College of Education; University of Basrah; Basrah Iraq
3. Institut für Pharmazeutische und Medizinische Chemie; Universität des Saarlandes; Saarbrücken Germany
4. National Center for Bioinformatics; Quaid-i-Azam University; Islamabad Pakistan
5. Department of Chemistry; Quaid-i-Azam University; Islamabad Pakistan