(19)

(11)

EP 3 807 254 A1

(12)

(43) Date of publication: 21.04.2021 Bulletin 2021/16 (21) Application number: 19821626.9 (22) Date of filing: 18.06.2019

(51) International Patent Classification (IPC):  C07D 261/14(2006.01) C07D 413/04(2006.01) C07D 401/04(2006.01) C07D 231/52(2006.01) C07D 263/48(2006.01) C07D 239/42(2006.01) C07D 233/88(2006.01) C07D 231/38(2006.01) (86) International application number: PCT/US2019/037749 (87) International publication number: WO 2019/246109 (26.12.2019 Gazette 2019/52)

(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: 18.06.2018 US 201816010755 (71) Applicant: Epigen Biosciences, Inc. San Diego, CA 92121 (US)

(72) Inventors: BEATON, Graham San Diego, California 92128 (US) TUCCI, Fabio C. San Diego, California 92103 (US) RAVULA, Satheesh B. San Diego, California 92127 (US) SHAH, Chandravadan R. San Diego, California 92129 (US) LEE, Suk Joong San Diego, California 92130-5400 (US) (74) Representative: Engstle, Verena  Meissner Bolte Patentanwälte Rechtsanwälte Partnerschaft mbB Bankgasse 3 90402 Nürnberg 90402 Nürnberg (DE)