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EP 1 668 007 A1

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(43) Date of publication: 14.06.2006 Bulletin 2006/24 (21) Application number: 04769418.7 (22) Date of filing: 17.09.2004

(51) International Patent Classification (IPC):  C07D 417/12(1990.01) C07D 409/12(1990.01) A61K 31/4525(2000.01) A61K 31/443(2000.01) C07D 413/12(1990.01) C07D 405/12(1990.01) A61P 29/00(2000.01) (86) International application number: PCT/IB2004/003047 (87) International publication number: WO 2005/026163 (24.03.2005 Gazette 2005/12)

(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 Designated Extension States: AL HR LT LV MK (30) Priority: 17.09.2003 US 503643 P (71) Applicant: Ranbaxy Laboratories Limited Gurgaon, Haryana 122001 (IN)

(72) Inventors: PALLE, Venkata P. Gurgaon, Haryana 122001 (IN) SATTIGERI, Viswajanani J. Gurgaon, Haryana 122001 (IN) SALMAN, Mohammad Plainsboro, New Jersey 08536 (US) SONI, Ajay New Delhi, Delhi 110059 (IN) RAY, Abhijit New Delhi, Delhi 110070 (IN) DASTIDAR, Sunanda G. New Delhi, Delhi 110044 (IN) (74) Representative: Gilholm, Stephen Philip  Ranbaxy Laboratories Limited Intellectual Property Department 20 Balderton Street London W1K 6TL London W1K 6TL (GB)