Sparey, Tim; Beher, Dirk; Best, Jonathan; Biba, Mirlinda; Castro, Jose L.; Clarke, Earl; Hannam, Joanne; Harrison, Timothy; Lewis, Huw; Madin, Andrew; Shearman, Mark; Sohal, Bindi; Tsou, Nancy; Welch, Christopher; Wrigley, Jonathan Bioorganic and Medicinal Chemistry Letters, 2005 , vol. 15, # 19 p. 4212 - 4216