1. Department of Chemistry, Faculty of Science, Al-Azhar University
Nasr City, CairoEgypt
2. Department of Pharmacognosy, College of Pharmacy, King Saud University
RiyadhKingdom of Saudi Arabia
3. Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Cairo University
CairoEgypt
4. Deprtment of Drug Radiation Research, National Center for Radiation Research and Technology, Atomic Energy
CairoEgypt