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EP 4 824 067 A1

(12)

(43) Date of publication: 21.10.2026 Bulletin 2026/43 (21) Application number: 26715812.9 (22) Date of filing: 13.02.2026

(51) International Patent Classification (IPC):  C07D 489/12(2006.01) G01N 33/53(2006.01) C07K 7/06(2006.01) C07K 17/06(2006.01) A61K 31/485(2006.01) C07K 4/00(2006.01) C07K 9/00(2006.01) G01N 33/58(2006.01) (52) Cooperative Patent Classification (CPC): G01N 33/5308; C07D 489/02; C07H 15/203; C07K 16/44; C07K 2317/92; C07K 2317/33; C07K 16/16; C07H 17/02; G01N 33/9486; G01N 2440/38; G01N 2400/02; G01N 33/9473; G01N 2400/00; G01N 33/94; G01N 33/948 (86) International application number: PCT/US2026/015345 (87) International publication number: WO 2026/177981 (27.08.2026 Gazette 2026/35)

(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 LA MA MD TN (30) Priority: 20.02.2025 US 202563761006 P (71) Applicant: ARK Diagnostics, Inc. Fremont, CA 94538 (US)	(72) Inventors: SINGH, Rajendra San Jose, California 95135 (US) OH, Soon Jin Sunnyvale, California 94085 (US) LIANG, Jie Newark, California 94560 (US) (74) Representative: Mewburn Ellis LLP  Aurora Building Counterslip Bristol BS1 6BX Bristol BS1 6BX (GB)