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(11)

EP 1 761 489 A1

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(43) Date of publication: 14.03.2007 Bulletin 2007/11 (21) Application number: 05718213.1 (22) Date of filing: 17.03.2005

(51) International Patent Classification (IPC):  C07D 207/34(2006.01) A61P 3/06(2006.01) A61K 31/40(2006.01) (86) International application number: PCT/IB2005/000687 (87) International publication number: WO 2005/090301 (29.09.2005 Gazette 2005/39)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR Designated Extension States: AL BA HR LV MK YU (30) Priority: 17.03.2004 IN DE04912004 16.03.2005 IN DE05622004 (71) Applicant: Ranbaxy Laboratories Limited Gurgaon, Haryana 122001 (IN)	(72) Inventors: KUMAR, Yatendra Gurgaon 1220022 Haryana (IN) KUMAR, Saridi M. D., c/o S-Block, 122, 1st Fl. Badshahpur(Post)Gurgaon 122101, Haryana (IN) SATHYANARAYANA, Swargam, c/o H.No. 9-6-95/2 (Old) Andhra Pradesh (IN) (74) Representative: Cronin, Brian Harold John  CRONIN Intellectual Property Route de Clémenty 62 1260 Nyon 1260 Nyon (CH)