Synthesis and antibiofilm evaluation of 3-hydroxy-2,3-dihydroquinazolin-4(1H)-one derivatives against opportunistic pathogen Acinetobacter baumannii
摘要:
The emergence of multidrug resistant microorganisms has triggered the impending need for new aitimicrobial strategies. The antivirulence strategy with the benefite of alleviating the drug resistance becomes the focus of research. In this study, 22 quorum sensing inhibitors were synthesized by mimicking the structure of autoinducer and acinetobactin and up to 34% biofilm inhibition was observed with 5u. The biofilm inhibition effect was further demonstrated with extracellular polysaccharides inhibition and synergism with Gentamycin sulphate.
The chemistry of 2<i>H</i>-3,1-benzoxazine-2,4(1<i>H</i>)dione (isatoic anhydrides) 1. The synthesis of<i>N</i>-substituted 2<i>H</i>-3,1-benzoxazine-2,4(1<i>H</i>)diones
作者:Goetz E. Hardtmann、Gabor Koletar、Oskar R. Pfister
DOI:10.1002/jhet.5570120325
日期:1975.6
Three methods for the preparation of N-substituted 2H-3,1-benzoxazine-2,4(1H)diones (isatoicanhydrides) (1) utilizing 2-chloro-, 2-nitrobenzoic acids and N-unsubstituted isatoicanhydrides as starting materials, are described.
三种制备N-取代的2 H -3,1-苯并恶嗪-2,4(1 H)二酮(乙酸酐)的方法(1)使用2-氯-,2-硝基苯甲酸和N-未取代的等角酸酐作为制备方法描述了起始材料。
THE CHEMISTRY OF 2H-3,1-BENZOXAZINE-2,4(1H)-DIONE (ISATOIC ANHYDRIDE). XXIV.<i>N</i>-BENZYLATION OF ISATOIC ANHYDRIDE UNDER MITSUNOBU CONDITIONS
作者:Gary M. Coppola
DOI:10.1081/scc-120003148
日期:2002.1
ABSTRACT Isatoicanhydride is readily alkylated on nitrogen with benzylic alcohols in the presence of triphenylphosphine and diethyl azodicarboxylate. Both electron donating and electron withdrawing groups are tolerated.