(19)

(11)

EP 1 021 412 A1

(12)

(43) Date of publication: 26.07.2000 Bulletin 2000/30 (21) Application number: 96941744.3 (22) Date of filing: 09.12.1996

(51) International Patent Classification (IPC)7: C07D 213/76, C07D 213/61, C07D 241/16, C07D 241/20, C07D 239/42, C07D 239/30, C07D 251/42, C07D 251/26, C07C 381/10, C07C 205/12, C07B 43/02 (86) International application number: PCT/GB9603/020 (87) International publication number: WO 9722/590 (26.06.1997 Gazette 1997/27)

(84) Designated Contracting States: CH DE FR GB IE IT LI NL SE (30) Priority: 16.12.1995 GB 9525789 (71) Applicant: The Secretary of State for Defence Farnborough,Hampshire GU14 0LX (GB)	(72) Inventors: MILLAR, Ross, Wood LingfieldSurrey RH7 6HQ (GB) CLARIDGE, Robert, Peter SealSevenoaksKent TN15 0BX (GB) SANDALL, John, Paul, Benet ExeterDevon EX4 6DJ (GB) THOMPSON, Claire MilbourneMalmesburyWiltshire SN16 9JF (GB) (74) Representative: Skelton, Stephen Richard et al D/IPD DERA Formalities,A4 Building,Ively Road Farnborough, Hants GU14 OLX Farnborough, Hants GU14 OLX (GB)