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EP 4 771 017 A1

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(43) Date of publication: 08.07.2026 Bulletin 2026/28 (21) Application number: 24858673.7 (22) Date of filing: 29.08.2024

(51) International Patent Classification (IPC):  C07D 498/22(2006.01) A61K 31/553(2006.01) C07D 519/00(2006.01) A61P 35/00(2006.01) (52) Cooperative Patent Classification (CPC): A61K 31/553; C07D 519/00; C07D 498/22; A61P 35/00 (86) International application number: PCT/CN2024/115467 (87) International publication number: WO 2025/045141 (06.03.2025 Gazette 2025/10)

(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: 31.08.2023 WO PCT/CN2023/116237 17.01.2024 WO PCT/CN2024/072724 (71) Applicant: Suzhou Zanrong Pharma Limited Suzhou, Jiangsu 215123 (CN)	(72) Inventors: WANG, Zheng Shanghai 200135 (CN) ZHOU, Ding Shanghai 200230 (CN) CHENG, Ziqiang Shanghai 201203 (CN) (74) Representative: Simmons & Simmons LLP (Munich)  Lehel Carré Gewürzmühlstraße 11 80538 Munich 80538 Munich (DE)