(19)
(11) EP 4 816 065 A1

(12)

(43) Date of publication:
07.10.2026 Bulletin 2026/41

(21) Application number: 24828580.1

(22) Date of filing: 27.11.2024
(51) International Patent Classification (IPC): 
A61P 35/00(2006.01)
A61K 31/438(2006.01)
C07D 519/00(2006.01)
(52) Cooperative Patent Classification (CPC):
C07D 519/00; A61P 35/00
(86) International application number:
PCT/US2024/057728
(87) International publication number:
WO 2025/117727 (05.06.2025 Gazette 2025/23)
(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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA
Designated Validation States:
GE KH MA MD TN

(30) Priority: 29.11.2023 US 202363603966 P
28.08.2024 US 202463688088 P

(71) Applicant: Regeneron Pharmaceuticals, Inc.
Tarrytown, NY 10591 (US)

(72) Inventors:
  • NITTOLI, Thomas
    Tarrytown, New York 10591 (US)
  • ANSARI, Nurul Hoda
    Tarrytown, New York 10591 (US)
  • YU, Po-Cheng
    Tarrytown, New York 10591 (US)

(74) Representative: Crow, Martin et al
Venner Shipley LLP TIDE Bankside 8 Emerson Street
London SE1 9DU
London SE1 9DU (GB)

   


(54) ANALOGS OF QUINOXALINE/QUINOLINE CYTOTOXINS, LINKER- PAYLOADS, PROTEIN-DRUG CONJUGATES, AND USES THEREOF