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(11)

EP 3 426 646 A1

(12)

(43) Date of publication: 16.01.2019 Bulletin 2019/03 (21) Application number: 17763649.5 (22) Date of filing: 03.03.2017

(51) International Patent Classification (IPC):  C07D 313/04(2006.01) C07B 61/00(2006.01) C07D 315/00(2006.01) C07B 41/12(2006.01) C07B 63/00(2006.01) (86) International application number: PCT/SE2017/000019 (87) International publication number: WO 2017/155442 (14.09.2017 Gazette 2017/37)

(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: 09.03.2016 GB 201604113 (71) Applicant: Perstorp AB 284 80 Perstorp (SE)	(72) Inventors: MAYO, William John Comberbach Northwich CW9 6BX (GB) EDWARDSON, Neil David Warrington Cheshire WA5 9UT (GB) ORRELL, Antony Woolston Warrington WA1 4QP (GB) HAZLEHURST, Jeremy Charles Altrincham Cheshire WA15 9HG (GB) (74) Representative: Hoffmann Eitle  Patent- und Rechtsanwälte PartmbB Arabellastraße 30 81925 München 81925 München (DE)