KIRA-7 is an imidazopyrazine compound. KIRA-7 has an anti-fibrotic effect. KIRA-7 binds the IRE1α kinase (IC50: 110 nM) to allosterically inhibit its RNase activity.
IRE1α kinase-IN-2 is a highly potent inhibitor of IRE1α kinase, demonstrating an EC50 of 0.82 μM. It effectively impedes IRE1α kinase autophosphorylation with an IC50 of 3.12 μM. Additionally, IRE1α kinase-IN-2 effectively inhibits the splicing of XBP1 mRNA in wild-type cell lines.