(19)

(11)

EP 1 178 945 A1

(12)

(43) Date of publication: 13.02.2002 Bulletin 2002/07 (21) Application number: 00927561.1 (22) Date of filing: 11.05.2000

(51) International Patent Classification (IPC)7: C01G 9/04, C07B 61/00, C07C 29/56, C07C 29/17, C07C 35/12 (86) International application number: PCT/GB0001/793 (87) International publication number: WO 0069/777 (23.11.2000 Gazette 2000/47)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE Designated Extension States: AL LT LV MK RO SI (30) Priority: 17.05.1999 EP 99303812 (71) Applicant: QUEST INTERNATIONAL B.V. 1411 GP Naarden (NL)	(72) Inventors: DAVEY, Paul, Nicholas AshfordKent TN24 9HU (GB) TSE, Chi-Lam AshfordKent TN24 0JB (GB) (74) Representative: Matthews, Heather Clare et al Keith W Nash & Co, 90-92 Regent Street Cambridge CB2 1DP Cambridge CB2 1DP (GB)