[1] King Saud Univ, Coll Pharm, Dept Pharmaceut Chem, POB 2457, Riyadh 11451, Saudi Arabia
[2] Natl Res Ctr, Dept Plant Biochem, Div Agr & Biol Res, 33 El Bohouth St, Giza 12622, Egypt
[3] Natl Res Ctr, Ctr Excellence Adv Sci, Chem Nat Prod Grp, 33 El Bohouth St, Cairo 12622, Egypt