(19)

(11)

EP 2 872 500 A2

(12)

(88) Date of publication A3: 06.03.2014 (43) Date of publication: 20.05.2015 Bulletin 2015/21 (21) Application number: 13816563.4 (22) Date of filing: 05.07.2013

(51) International Patent Classification (IPC):  C07D 401/12(2006.01) A61P 7/02(2006.01) A61K 31/4439(2006.01) (86) International application number: PCT/IN2013/000413 (87) International publication number: WO 2014/009966 (16.01.2014 Gazette 2014/03)

(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: 12.07.2012 IN CH28382012 15.10.2012 IN CH42982012 (71) Applicant: Rao, Davuluri Ramamohan Hyderabad 50003 (IN)	(72) Inventors: PONNAIAH, Ravi Madurai 625014 (IN) NEELA, Praveen Kumar Hyderabad 500072 (IN) BATTHINI, Guruswamy Hyderabad 500082 (IN) VEERA, Narayana B Hyderabad 50005 (IN) RAO TELEGAREDDY, Venkata Narasimha East Godavari 533247 (IN) BABU, Ravana K East Godavari 533445 (IN) (74) Representative: Dall'Olio, Christian et al INVENTION S.r.l. Via delle Armi, 1 40137 Bologna 40137 Bologna (IT)