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Sökning: WFRF:(Ducime Alex)

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1.
  • Pippione, Agnese C., et al. (författare)
  • 4-Hydroxy-N -[3,5-bis(trifluoromethyl)phenyl]-1,2,5-thiadiazole-3-carboxamide: A novel inhibitor of the canonical NF-κB cascade
  • 2017
  • Ingår i: MedChemComm. - : Royal Society of Chemistry (RSC). - 2040-2503 .- 2040-2511. ; 8:9, s. 1850-1855
  • Tidskriftsartikel (refereegranskat)abstract
    • The NF-κB signaling pathway is a validated oncological target. Here, we applied scaffold hopping to IMD-0354, a presumed IKKβ inhibitor, and identified 4-hydroxy-N-[3,5-bis(trifluoromethyl)phenyl]-1,2,5-thiadiazole-3-carboxamide (4) as a nM-inhibitor of the NF-κB pathway. However, both 4 and IMD-0354, being potent inhibitors of the canonical NF-κB pathway, were found to be inactive in human IKKβ enzyme assays.
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2.
  • Sainas, Stefano, et al. (författare)
  • Targeting myeloid differentiation using potent 2-hydroxypyrazolo[1,5-a]pyridine scaffold-based human dihydroorotate dehydrogenase (hDHODH) inhibitors.
  • 2018
  • Ingår i: Journal of medicinal chemistry. - : American Chemical Society (ACS). - 1520-4804 .- 0022-2623. ; 61:14, s. 6034-6055
  • Tidskriftsartikel (refereegranskat)abstract
    • Human dihydroorotate dehydrogenase (hDHODH) catalyzes the rate-limiting step in de novo pyrimidine biosynthesis, the conversion of dihydroorotate to orotate. hDHODH has recently been found to be associated with acute myelogenous leukemia, a disease for which the standard of intensive care has not changed over decades. This work presents a novel class of hDHODH inhibitors, which are based on an unusual carboxylic group bioisostere 2-hydroxypyrazolo[1,5-a]pyridine, that has been designed starting from brequinar, one of the most potent hDHODH inhibitors. A combination of structure-based and ligand-based strategies produced compound 4, which shows brequinar-like hDHODH potency in vitro and is superior in terms of cytotoxicity and immunosuppression. Compound 4 also restores myeloid differentiation in leukemia cell lines at concentrations that are one log digit lower than those achieved in experiments with brequinar. This paper reports the design, synthesis, SAR, X-ray crystallography, biological assays and physicochemical characterization of the new class of hDHODH inhibitors.
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