(19)

(11)

EP 3 386 944 A2

(12)

(88) Date of publication A3: 10.08.2017 (43) Date of publication: 17.10.2018 Bulletin 2018/42 (21) Application number: 16872573.7 (22) Date of filing: 12.12.2016

(51) International Patent Classification (IPC):  C07C 231/02(2006.01) C07D 203/18(2006.01) (86) International application number: PCT/IN2016/050441 (87) International publication number: WO 2017/098533 (15.06.2017 Gazette 2017/24)

(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 Designated Validation States: MA MD (30) Priority: 11.12.2015 IN 4670MU2015 (71) Applicant: Sun Pharmaceutical Industries Limited Mumbai, Maharashtra 400 063 (IN)	(72) Inventors: THENNATI, Rajamannar Baroda Gujarat 390020 (IN) KILARU, Srinivasu Baroda Gujarat 390020 (IN) PAWAR, Sujit Sridhar Chattanooga, Tennessee 37409 (US) PATEL, Nileshkumar Sureshbhai Chattanooga, Tennessee 37409 (US) (74) Representative: Harrison IP Limited  3 Ebor House Millfield Lane Nether Poppleton, York YO26 6QY Nether Poppleton, York YO26 6QY (GB)