1. Department of Applied Organic Chemistry, Chemical Industries Division, National Research Centre, Giza, Egypt
2. Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 1/3, Moscow 119991, Russian Federation
3. Department of Chemistry & Biochemistry, Jackson State University, 1400 J.R. Lynch Street, P.O. Box 17910-Jackson, MS 39217-0510, United States
4. Pharmacognosy Department, Pharmaceutical Industries Division, National Research Centre, Giza, Egypt
5. Natural Compounds Department, Pharmaceutical Industries Division, National Research Centre, Giza, Egypt
6. Moscow Institute of Physic and Technology (State University), 9 Institutskiy Lane, Dolgoprudny, Moscow Oblast 141700, Russian Federation