1. Department of Chemistry, College of Science, King Faisal University, P.O. Box 400, Al-Ahsa 31982, Saudi Arabia
2. Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-AHasa 31982, Saudi Arabia
3. Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Helwan University, P.O. Box Cairo 11795, Egypt
4. Biochemistry Division, Chemistry Department, Faculty of Science, Mansoura University, Mansoura 35516, Egypt