(untitled) - Barker,A.J.; Gibson,K.H.; Grundy,W.; Godfrey,A.A.; Barlow,J.J.; Healy,M.P.; Woodburn,J.R.; Ashton,S.E.; Curry,B.J.; Scarlett,L.; Henthorn,L.; Richards,L. (Bioorg. Med. Chem. Lett., 2001)