A versatile method for the synthesis of novel brominated 4-alkyl-2(5H)-furanones under mild reaction conditions is described. This synthetic strategy requires only one chromatographic separation over six steps and employs the cyclodehydration of brominated levulinic acid as the key transformation.
The construction of natural product-like, tricyclic compounds is reported. Starting from a d-(−)-ribose-derived dihydrofurane, the tricyclic scaffold is prepared via an intramolecularhetero-Diels−Alderreaction. The reaction proceeds with very high diastereoselectivity through an endo transition state, as established on the basis of X-ray structural analysis of the products. Further modification and
(QS) can cause bacterial biofilm formation, thus induce antibiotic resistance and inflammation in chronic bacterial infections. A series of novel 4-arylamidobenzyl substituted 5-bromomethylene-2(5H)-furanones were designed by introducing of brominated furanones into rosiglitazone skeleton, and their potential application in the treatment of chronic bacterial infection was evaluated with regard to their