(19)

(11)

EP 4 185 574 A1

(12)

(43) Date of publication: 31.05.2023 Bulletin 2023/22 (21) Application number: 21743519.7 (22) Date of filing: 19.07.2021

(51) International Patent Classification (IPC):  C07D 307/91(2006.01) H01L 51/50(2006.01) C07D 333/76(2006.01) (52) Cooperative Patent Classification (CPC): C07D 307/91; C07D 333/76; Y02E 10/549; H10K 85/615; H10K 85/626; H10K 85/6574; H10K 50/11 (86) International application number: PCT/EP2021/070068 (87) International publication number: WO 2022/017997 (27.01.2022 Gazette 2022/04)

(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: 22.07.2020 EP 20187118 (71) Applicant: Merck Patent GmbH 64293 Darmstadt (DE)	(72) Inventors: LINGE, Rouven 64293 DARMSTADT (DE) ENGEL, Miriam 64293 DARMSTADT (DE) MEYER, Sebastian 64293 DARMSTADT (DE) STOLZ, Sebastian 64293 DARMSTADT (DE)