Khan, Khalid Mohammed; Saad, Syed Muhammad; Shaikh, Nimra Naveed; Hussain, Shafqat; Fakhri, Muhammad Imran; Perveen, Shahnaz; Taha, Muhammad; Choudhary, Muhammad Iqbal Bioorganic and Medicinal Chemistry, 2014 , vol. 22, # 13 p. 3449 - 3454