(19)

(11)

EP 2 024 369 A2

(12)

(88) Date of publication A3: 21.02.2008 (43) Date of publication: 18.02.2009 Bulletin 2009/08 (21) Application number: 07805617.3 (22) Date of filing: 01.06.2007

(51) International Patent Classification (IPC):  C07D 487/04(2006.01) C07C 65/05(2006.01) C07D 231/06(2006.01) (86) International application number: PCT/IN2007/000219 (87) International publication number: WO 2007/141805 (13.12.2007 Gazette 2007/50)

(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 LV MC MT NL PL PT RO SE SI SK TR Designated Extension States: AL BA HR MK RS (30) Priority: 05.06.2006 IN CH09602006 (71) Applicant: Matrix Laboratories Ltd Secunderabad 500 003, Andhra Pradesh (IN)	(72) Inventors: GORANTLA, Seeta, Ramanjaneyulu Hyerabad 500 055, Andhrapradesh (IN) BHANDARI, Mohan Hyerabad 500 055, Andhrapradesh (IN) INDUKURI, Venkata, Sunil, Kumar Hyerabad 500 055, Andhrapradesh (IN) SIMHADRI, Srinivas Hyerabad 500 055, Andhrapradesh (IN) (74) Representative: von Seebach, Malte  Maiwald Patentanwalts GmbH Jungfernstieg 38 D-20354 Hamburg D-20354 Hamburg (DE)