A new method for preparation of functionalized enamides by a nickel-catalyzed multicomponent coupling of ynamides, aldehydes, and silane has been developed. The coupling reaction proceeded in the presence of a nickel-IMes catalyst to give the corresponding gamma-silyloxyenamide derivative, which has an allylic alcohol moiety in the molecule, in a highly stereoselective manner.

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We established stable HeLa transformants with reporter genes containing nuclear factor (NF)-κB response elements to measure NF-κB inhibition. Tumor necrosis factor (TNF)-α treatment induced a 6-fold activation of NF-κB in HeLa NF-κB -3 cells. Three chloro-derivatives of fourteen dibenzoylmethane derivatives inhibited NF-κB activity.

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