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(11)

EP 2 744 573 A2

(12)

(88) Date of publication A3: 25.04.2013 (43) Date of publication: 25.06.2014 Bulletin 2014/26 (21) Application number: 12823566.0 (22) Date of filing: 13.08.2012

(51) International Patent Classification (IPC):  A61P 31/18(2006.01) (86) International application number: PCT/IN2012/000549 (87) International publication number: WO 2013/024494 (21.02.2013 Gazette 2013/08)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR (30) Priority: 18.08.2011 IN CH28282011 (71) Applicant: Hetero Research Foundation Hyderabad 500 018 (IN)

(72) Inventors: PARTHASARADHI REDDY, Bandi Balanagar Andhra Pradesh Hyderabad 500018 (IN) RATHNAKAR REDDY, Kura Balanagar Andhra Pradesh Hyderabad 500018 (IN) MURALIDHARA REDDY, Dasari Balanagar Andhra Pradesh Hyderabad 500018 (IN) VAMSI KRISHNA, Bandi Balanagar Andhra Pradesh Hyderabad 500018 (IN) (74) Representative: Radkov, Stoyan Atanassov  Urquhart-Dykes & Lord LLP The Podium 1 Eversholt Street London NW1 2DN London NW1 2DN (GB)