(19)

(11)

EP 2 176 225 A1

(12)

(43) Date of publication: 21.04.2010 Bulletin 2010/16 (21) Application number: 08782583.2 (22) Date of filing: 01.08.2008

(51) International Patent Classification (IPC):  C07D 213/72(2006.01) (86) International application number: PCT/US2008/071869 (87) International publication number: WO 2009/018504 (05.02.2009 Gazette 2009/06)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR Designated Extension States: AL BA MK RS (30) Priority: 01.08.2007 US 953259 P (71) Applicant: E. I. du Pont de Nemours and Company Wilmington, DE 19898 (US)	(72) Inventor: RITTER, Joachim, C. Wilmington, Delaware 19810 (US) (74) Representative: Matthews, Derek Peter  Dehns St Bride's House 10 Salisbury Square London EC4Y 8JD London EC4Y 8JD (GB)