1. Department of Chemistry, Hazara University, Mansehra 21120, Pakistan
2. Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P. O. Box 2457, Riyadh 11451, Saudi Arabia
3. Department of Pharmaceutical Sciences, College of Pharmacy, Princess Nourah Bint Abdulrahman University, P. O. Box 84428, Riyadh 11671, Saudi Arabia
4. Department of Chemistry, College of Sciences, Taif University, P. O. Box 11099, Taif 21944, Saudi Arabia