(19)

(11)

EP 1 638 520 A2

(12)

(88) Date of publication A3: 17.02.2005 (43) Date of publication: 29.03.2006 Bulletin 2006/13 (21) Application number: 04737046.5 (22) Date of filing: 18.06.2004

(51) International Patent Classification (IPC):  A61K 9/00(1968.09) (86) International application number: PCT/IB2004/002040 (87) International publication number: WO 2004/110399 (23.12.2004 Gazette 2004/52)

(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: 19.06.2003 IN DE08182003 (71) Applicant: Ranbaxy Laboratories Limited 110 019 New Dehli, Delhi (IN)	(72) Inventors: KUMAR, Yatendra Gurgaon, Haryana 122001 (IN) TEWARI, Neera Gurgaon, Haryana 122001 (IN) SINGH, Shailendra, Kumar Gurgaon, Haryana 122001 (IN) RAI, Bishwa, Prakash Azamgarh, Uttar Pradesh 276306 (IN) (74) Representative: Gilholm, Stephen Philip  Ranbaxy Laboratories Limited Intellectual Property Department 20 Balderton Street London W1K 6TL London W1K 6TL (GB)