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EP 4 161 578 A1

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(43) Date of publication: 12.04.2023 Bulletin 2023/15 (21) Application number: 21817651.9 (22) Date of filing: 03.06.2021

(51) International Patent Classification (IPC):  A61K 47/60(2017.01) A61K 47/56(2017.01) C08L 101/00(2006.01) A61K 47/64(2017.01) A61K 51/06(2006.01) C07D 305/14(2006.01) A61P 35/00(2006.01) A61K 47/54(2017.01) C08G 73/02(2006.01) A61K 47/62(2017.01) A61K 49/12(2006.01) C07D 487/00(2006.01) A61K 47/68(2017.01) (52) Cooperative Patent Classification (CPC): A61P 35/00; C08G 73/02; C08G 83/003; C08G 69/48; C08G 83/004; A61K 47/6885; A61K 47/6849; A61K 47/6803; A61K 47/6851; A61K 51/1096; A61K 51/1093; A61K 51/1045; A61K 51/1027; A61K 51/065 (86) International application number: PCT/AU2021/050554 (87) International publication number: WO 2021/243415 (09.12.2021 Gazette 2021/49)

(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: KH MA MD TN (30) Priority: 03.06.2020 AU 2020901833 26.02.2021 AU 2021900538 (71) Applicant: Starpharma Pty Limited Abbotsford VIC 3067 (AU)	(72) Inventors: SHENGULE, Sudhir Ramnathrao Abbotsford, Victoria 3067 (AU) OWEN, David Abbotsford, Victoria 3067 (AU) HUFTON, Richard Abbotsford, Victoria 3067 (AU) THURECHT, Kris Abbotsford, Victoria 3067 (AU) (74) Representative: Mewburn Ellis LLP  Aurora Building Counterslip Bristol BS1 6BX Bristol BS1 6BX (GB)