Abstract
A series of new α-methylene-γ-lactone carbamates were synthesized by an asymmetric synthetic route. The activities on inhibiting nitric oxide (NO) release of these compounds were evaluated in lipopolysaccharide (LPS)-induced RAW 264.7 macrophages. The results indicated that most of the compounds except one exhibited potent NO inhibitory effect with IC50 value more than 2 μΜ. The cytotoxicities of these compounds were estimated via MTT assays. The results suggested that six compounds were accompanied by low cytotoxicity. The structure–activity relationships were also discussed. The S configuration of C3 on lactones ring would be more helpful to NO inhibitory effect.
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