Hughes, Robert O.; Walker, John K.; Cubbage, Jerry W.; Fobian, Yvette M.; Rogier, D. Joseph; Heasley, Steve E.; Blevis-Bal, Rhadika M.; Benson, Alan G.; Owen, Dafydd R.; Jacobsen, E. Jon; Freskos, John N.; Molyneaux, John M.; Brown, David L.; Stallings, William C.; Acker, Brad A.; Maddux, Todd M.; Tollefson, Mike B.; Williams, Jennifer M.; Moon, Joseph B.; Mischke, Brent V.; Rumsey, Jeanne M.; Zheng, Yi; MacInnes, Alan; Bond, Brian R.; Yu, Ying Bioorganic and Medicinal Chemistry Letters, 2009 , vol. 19, # 15 p. 4092 - 4096