1. Centre for Advanced Drug Research, COMSATS Institute of Information Technology, Abbottabad, Abbottabad-22060, Pakistan
2. Institut für Chemie, Universität Rostock, Albert Einstein Str. 3A, 18059 Rostock, Germany
3. Department of Life Science Informatics, B-IT, LIMES Program Unit Chemical Biology and Medicinal Chemistry, Rheinische Friedrich- Wilhelms-Universität, Dahlmannstr. 2, D-53113 Bonn, Germany