Author(s) affiliations:Muhammad Yaqoob1, Muhammad Farid Khan2, Muhammad Tausif Chaudhry3*, Izhar Ahmad Shaikh4
1Post Graduate, 2Professor, Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Gomal University, D. I. Khan, Pakistan
3Senior Scientific Officer, 4Junior Scientific Officer, Pakistan Council of Scientific and Industrial Research (PCSIR), Islamabad, Pakistan