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(11)

EP 1 605 919 A1

(12)

(43) Date of publication: 21.12.2005 Bulletin 2005/51 (21) Application number: 04715973.6 (22) Date of filing: 01.03.2004

(51) International Patent Classification (IPC)7: A61K 9/20, A61K 9/30, A61K 31/4439 (86) International application number: PCT/IB2004/000536 (87) International publication number: WO 2004/075881 (10.09.2004 Gazette 2004/37)

(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 LT LV MK (30) Priority: 28.02.2003 IN DE02032003 (71) Applicant: RANBAXY LABORATORIES, LTD. New Delhi 110 019 (IN)	(72) Inventors: SINGH, Romi, Barat 221002 VaranasiUttar Pradesh (IN) KUMAR, Pananchukunnath, Manoj New Delhi 110018 (IN) NAGAPRASAD, Vishnubhotla 500 072 HyderabadAndhra Pradesh (IN) MALIK, Rajiv A-1190 Wien (AT) (74) Representative: Gilholm, Stephen Philip  Ranbaxy Laboratories Limited Intellectual Property Dept. 20 Balderton Street London W1K 6TL London W1K 6TL (GB)