Cockerill, Stuart; Stubberfield, Colin; Stables, Jeremy; Carter, Malcolm; Guntrip, Stephen; Smith, Kathryn; McKeown, Steve; Shaw, Robert; Topley, Peter; Thomsen, Lindy; Affleck, Karen; Jowett, Amanda; Hayes, David; Willson, Malcolm; Woollard, Patrick; Spalding, David Bioorganic and Medicinal Chemistry Letters, 2001 , vol. 11, # 11 p. 1401 - 1405