(19)

(11)

EP 2 831 045 A2

(12)

(88) Date of publication A3: 12.12.2013 (43) Date of publication: 04.02.2015 Bulletin 2015/06 (21) Application number: 13731500.8 (22) Date of filing: 20.03.2013

(51) International Patent Classification (IPC):  C07D 213/61(2006.01) A61P 29/00(2006.01) A61K 31/444(2006.01) (86) International application number: PCT/IN2013/000187 (87) International publication number: WO 2013/144977 (03.10.2013 Gazette 2013/40)

(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 Designated Extension States: BA ME (30) Priority: 30.03.2012 IN CH12612012 10.07.2012 IN CH27942012 (71) Applicant: Mylan Laboratories, Limited Jubilee Hills, Hyderabad 500 034 (IN)

(72) Inventors: DORASALA, Siva Prasad Reddy Hyderabad - 500 055 (IN) NALLA, Raja Mahender Reddy Hyderabad - 500 055 (IN) KOILKONDA, Purandhar Hyderabad - 500 055 (IN) RAMA, Shankar Hyderabad - 500 055 (IN) TUMMANEPALLY, Jagan Mohana Chary Hyderabad - 500 055 (IN) (74) Representative: Gillard, Richard Edward  Elkington and Fife LLP Thavies Inn House 3-4 Holborn Circus London EC1N 2HA London EC1N 2HA (GB)