Sum, Fuk-Wah; Dusza, John; Delos Santos, Efren; Grosu, George; Reich, Marvin; Du, Xumei; Albright, J. Donald; Chan, Peter; Coupet, Joseph; Ru, Xun; Mazandarani, Hossein; Saunders, Trina Bioorganic and Medicinal Chemistry Letters, 2003 , vol. 13, # 13 p. 2195 - 2198