(19)

(11)

EP 1 644 322 A1

(12)

(43) Date of publication: 12.04.2006 Bulletin 2006/15 (21) Application number: 03796897.1 (22) Date of filing: 10.12.2003

(51) International Patent Classification (IPC):  C07C 237/22(1990.01) C07C 237/14(1990.01) C07D 307/02(1985.01) C07D 249/08(1985.01) C07C 311/08(1990.01) C07D 285/06(1985.01) A61K 31/166(2000.01) C07K 5/02(1985.01) C07C 237/12(1990.01) C07D 333/02(1985.01) C07D 211/04(1985.01) C07C 311/16(1990.01) C07D 275/02(1985.01) C07D 213/04(1985.01) A61P 25/28(2000.01) C07D 241/08(1985.01) (86) International application number: PCT/US2003/039276 (87) International publication number: WO 2005/005374 (20.01.2005 Gazette 2005/03)

(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 PT RO SE SI SK TR (30) Priority: 16.06.2003 US 462127 16.06.2003 WO PCT/US03/18858 (71) Applicant: Sunesis Pharmaceuticals, Inc. San Francisco, CA 94080 (US)	(72) Inventor: YANG, Wenjin Foster City, CA 94404 (US) (74) Representative: Gambell, Derek et al Graham Watt & Co LLP St Botolph's House 7-9 St Botolph's Road Sevenoaks Kent TN13 3AJ Sevenoaks Kent TN13 3AJ (GB)