1. Department of Chemistry, Bacha Khan University Charsadda, Charsadda-24420, Khyber Pakhtunkhwa, Pakistan
2. Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
3. Organic Chemistry, Martin-Luther-University Halle-Wittenberg, Kurt-Mothes-Str. 2, d-06120, Halle (Saale), Germany