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(11)

EP 2 274 284 A2

(12)

(43) Date of publication: 19.01.2011 Bulletin 2011/03 (21) Application number: 09743637.2 (22) Date of filing: 07.05.2009

(51) International Patent Classification (IPC):  C07D 231/12(2006.01) C07D 233/68(2006.01) C07D 249/06(2006.01) C07D 233/64(2006.01) C07D 233/88(2006.01) (86) International application number: PCT/US2009/043096 (87) International publication number: WO 2009/137651 (12.11.2009 Gazette 2009/46)

(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 MK MT NL NO PL PT RO SE SI SK TR Designated Extension States: AL BA RS (30) Priority: 08.05.2008 US 126990 06.05.2009 WO PCT/US2009/040922 (71) Applicant: E. I. Du Pont de Nemours and Company Wilmington, DE 19898 (US)

(72) Inventors: SELBY, Thomas, Paul Hockessin, DE 19707 (US) BEREZNAK, James, Francis Newtown Square, PA 19073 (US) BISAHA, John, Joseph Hockessin, DE 19707 (US) DING, Amy, X. Wilmington, DE 19803 (US) GOPALSAMUTHIRAM, Vijayagopal Subash Nagar Secunderabad Andhra Pradesh 500015 (IN) HANAGAN, Mary, Ann Newark, DE 19711 (US) LONG, Jeffrey, Keith Wilmington, DE 19803 (US) TAGGI, Andrew, Edmund Newark, DE 19711 (US) (74) Representative: Beacham, Annabel Rose et al Dehns St Bride's House 10 Salisbury Square London EC4Y 8JD London EC4Y 8JD (GB)