(19)

(11)

EP 1 663 968 A1

(12)

(43) Date of publication: 07.06.2006 Bulletin 2006/23 (21) Application number: 04769257.9 (22) Date of filing: 02.09.2004

(51) International Patent Classification (IPC):  C07D 207/27(1985.01) A61P 25/08(2000.01) A61K 31/4015(2000.01) (86) International application number: PCT/IB2004/002850 (87) International publication number: WO 2005/023763 (17.03.2005 Gazette 2005/11)

(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 (30) Priority: 05.09.2003 IN DE11082003 (71) Applicant: Ranbaxy Laboratories Limited Haryana 122001, Delhi (IN)	(72) Inventors: KUMAR, Yatendra Gurgaon, Haryana 122001 (IN) PRASAD, Mohan Gurgaon, Haryana 122001 (IN) SINGH, Kaptan Flat No. B-02, Saket Enclave Uttar Pradesh 201005 (IN) DHINGRA, Surender, Kumar New Delhi, Delhi 110058 (IN) (74) Representative: Gilholm, Stephen Philip et al Ranbaxy Laboratories Limited Intellectual Property Department 20 Balderton Street London W1K 6TL London W1K 6TL (GB)