A series of 1-(3-aryloxyaryl)benzimidazoles incorporating a sulfone substituent (6) was prepared. High affinity LXR ligands were identified (LXRbeta binding IC(50) values <10nM), some with excellent agonist potency and efficacy in a functional assay of LXR activity measuring ABCA1 mRNA increases in human macrophage THP1 cells. The compounds were typically stable in liver microsome preparations and had good oral exposure in mice.
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