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EP 1 670 742 A1

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(43) Date of publication: 21.06.2006 Bulletin 2006/25 (21) Application number: 04769351.0 (22) Date of filing: 13.09.2004

(51) International Patent Classification (IPC):  C07C 51/363(1980.01) C07C 65/21(1980.01) C07C 69/84(1968.09) A61K 31/44(1985.01) C07C 51/347(1980.01) C07C 67/00(1968.09) C07C 69/92(1968.09) A61P 11/06(2000.01) (86) International application number: PCT/IB2004/002959 (87) International publication number: WO 2005/026095 (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: 12.09.2003 IN DE11452003 (71) Applicant: Ranbaxy Laboratories Limited Gurgaon, Haryana 122001 (IN)	(72) Inventors: BOSE, Prosenjit Gurgaon, Haryana 122001 (IN) SACHDEVA, Yoginder, Pal Ferozepur, Punjab 152116 (IN) RATHORE, Ramendra, Singh Farrukhabad, Uttar Pradesh 209625 (IN) KUMAR, Yatendra Gurgaon, Haryana 122001 (IN) (74) Representative: Gilholm, Stephen Philip et al Ranbaxy Laboratories Limited Intellectual Property Department 20 Balderton Street London W1K 6TL London W1K 6TL (GB)