Elagawany, Mohamed; Ibrahim, Mohamed A.; Ali Ahmed, Hany Emary; El-Etrawy, A.Sh.; Ghiaty, Adel; Abdel-Samii, Zakaria K.; El-Feky, Said A.; Bajorath, Juergen Bioorganic and Medicinal Chemistry Letters, 2013 , vol. 23, # 7 p. 2007 - 2013