(19)

(11)

EP 1 799 642 A1

(12)

(43) Date of publication: 27.06.2007 Bulletin 2007/26 (21) Application number: 05779026.3 (22) Date of filing: 11.08.2005

(51) International Patent Classification (IPC):  C07D 209/24(2006.01) A61K 31/405(2006.01) C07F 9/40(2006.01) C07F 9/02(2006.01) (86) International application number: PCT/EP2005/008701 (87) International publication number: WO 2006/021326 (02.03.2006 Gazette 2006/09)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR Designated Extension States: AL BA HR MK YU (30) Priority: 27.08.2004 EP 04020350 (71) Applicants: Zhejiang Hisun Pharmaceutical Co. Ltd. Jiaojiang District Taizhou City Zhejiang Province 318000 (CN) Tiefenbacher Pharmachemikalien Alfred E.Tiefenbacher GmbH & Co.KG 22767 Hamburg (DE)

(72) Inventors: ZHU, Guorong Taizhou City, Zhejiang Province 318000 (CN) GONG, Hongquan Taizhou City, Zhejiang Province 318000 (CN) BECKER, Stefan 20251 Hamburg (DE) (74) Representative: Wittkopp, Alexander  Maiwald Patentanwalts GmbH Jungfernstieg 38 20354 Hamburg 20354 Hamburg (DE)