2-(4-Methyl-1,4-Diazepan-1-Yl)-N-((5-Methylpyrazin-2-Yl)Methyl)-5-Oxo-5H-Benzo[4,5]Thiazolo[3,2-A][1,8]Naphthyridine-6-Carboxamide 2-(4-甲基-1,4-二氮杂卓-1-基)-N-((5-甲基吡嗪-2-基)甲基)-5-氧代-5H-苯并[4,5]噻唑并[3,2-a][1,8]萘啶-6-甲酰胺
CAS 1138549-36-6 MFCD238549366
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- CX-5461 is a first-in-class non-genotoxic small molecule targeted inhibitor of RNA polymerase I (Pol I) that activates the p53 pathway without causing DNA damage. CX-5461 selectively inhibits rRNA synthesis by Pol I in the nucleolus, but does not inhibit mRNA synthesis by RNA Polymerase II (Pol II) and does not inhibit DNA replication or protein synthesis. Inhibition of Pol I results in nucleolar stress and release of ribosomal proteins (RP) from the nucleolus. The RP bind to Mdm2 and liberate p53 to orchestrate apoptosis in cancer cells. CX-5461 demonstrates a favorable preclinical profile, potently and selectively kills cancer cells, demonstrates robust in vivo efficacy in multiple models, and has demonstrated oral bioavailability in multiple species.