(19)

(11)

EP 1 844 014 A1

(12)

(43) Date of publication: 17.10.2007 Bulletin 2007/42 (21) Application number: 04785350.2 (22) Date of filing: 01.10.2004

(51) International Patent Classification (IPC):  C07D 213/807(2006.01) (86) International application number: PCT/US2004/032392 (87) International publication number: WO 2006/041457 (20.04.2006 Gazette 2006/16)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR (71) Applicant: INVISTA Technologies S.à.r.l. 8001 Zürich (CH)

(72) Inventors: THOMAS, William, Barry Great Ayton, North Yorkshire TS9 6A (GB) WHISTON, Keith Darlington DL3 8EY (GB) GARCIA-VERDUGO, Eduardo, Cepeda 12005, Castellon (ES) POLIAKOFF, Martyn Nottingham NG9 7BU (GB) HAMLEY, Paul Anthony Beeston, Nottingham, NG9 2EX (GB) (74) Representative: Cockerton, Bruce Roger et al Carpmaels & Ransford, 43-45 Bloomsbury Square London WC1A 2RA London WC1A 2RA (GB)