High affinity and selective HIF-2α inhibitor (Kd = 81 nM). Binds to the HIF-2α PAS-B domain; disrupts HIF-2α-ARNT heterodimerization. Exhibits >60-fold selectivity for HIF-2α over HIF-1α. Decreases HIF-2α DNA-binding and attenuates expression of HIF-2α target genes in vitro.
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