(19)

(11)

EP 1 047 979 A2

(12)

(88) Date of publication A3: 22.07.1999 (43) Date of publication: 02.11.2000 Bulletin 2000/44 (21) Application number: 98952922.7 (22) Date of filing: 11.11.1998

(51) International Patent Classification (IPC)7: G03G 9/097, C07D 213/64 // C07D213/78, C07D405/06 (86) International application number: PCT/GB9803/390 (87) International publication number: WO 9924/870 (20.05.1999 Gazette 1999/20)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 12.11.1997 GB 9723858 (71) Applicant: Avecia Limited Blackley, Manchester M9 8ZS (GB)	(72) Inventor: DEVONALD, David, Phillip Manchester M9 8ZS (GB) (74) Representative: Fawkes, David Melville et al Avecia LimitedIntellectual Property Group,P.O. Box 42,Hexagon House Blackley,Manchester M9 8ZS Blackley,Manchester M9 8ZS (GB)