Abstract We recently reported that diphenylsilane structure can function as a cis-stilbene mimetic. Here, we investigate whether silyl functionality can also serve as a mimetic of aliphatic cis-olefin. We designed and synthesized various silyl derivatives of oleoylethanolamide (OEA: 8), an endogenous cis-olefin-containing PPARα agonist, and evaluated their PPARα/δ/γ agonistic activity. We found that diethylsilyl derivative 20 exhibited PPARα/δ agonistic activity, and we also obtained a PPARδ-selective agonist, 32. Our results suggest that incorporation of silyl functionality is a useful option for structural development of biologically active compounds.
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