Curcuminoids have been reported to possess multifunctional bioactivities, especially the ability to inhibit proinflammatory induction. Since it has been suggested that the seven- carbon β-diketone linker in curcumin is responsible for its instability, nine mono-carbonyl five- carbon linker containing analogues were designed and synthesized. Their bioactivity against lipopolysaccharide-induced TNF-α amd IL-6 secretion was evaluated by using ...