1. Department of Pharmaceutical Chemistry ISF College of Pharmacy Ghal Kalan Ferozpur G.T. Road MOGA 142001 Punjab
2. Department of Chemistry Turabah University College, Taif University P.O.Box 11099 Taif 21944 Saudi Arabia
3. Department of Chemistry, College of Science Taif University P.O. Box 11099 Taif 21944 Saudi Arabia
4. Department of Chemical Sciences University of Padova Via Marzolo 1 35131 Padova Italy