Safonov, Igor G.; Heerding, Dirk A.; Keenan, Richard M.; Price, Alan T.; Erickson-Miller, Connie L.; Hopson, Christopher B.; Levin, Jenna L.; Lord, Kenneth A.; Tapley, Peter M. Bioorganic and Medicinal Chemistry Letters, 2006 , vol. 16, # 5 p. 1212 - 1216