Silver(<scp>i</scp>)/base-promoted propargyl alcohol-controlled regio- or stereoselective synthesis of furan-3-carboxamides and (<i>Z</i>)-enaminones
作者:Sabera Sultana、Jae-Jin Shim、Sung Hong Kim、Yong Rok Lee
DOI:10.1039/c8ob01791c
日期:——
A novel and facile regioselective synthesis of furan-3-carboxamides by a silver(I)/base-promoted reaction of propargyl alcohol with 3-oxo amides has been demonstrated. This one-pot protocol provides a rapid synthetic approach to diverse trisubstituted furan-3-carboxamides via cascade nucleophilic addition, intramolecular cyclization, elimination, and isomerization reactions. Employing a substituted
已经证明了通过炔丙醇与3-氧代酰胺的银(I)/碱促进的反应的呋喃-3-甲酰胺的新颖且容易的区域选择性合成。这一一锅方案通过级联亲核加成,分子内环化,消除和异构化反应,为多种三取代呋喃-3-羧酰胺提供了一种快速的合成方法。通过使用取代的炔丙醇,由3-氧代酰胺经C–N键断裂,通过Ag 2 CO 3促进的反应,具有高立体选择性的(Z)-烯胺酮。
Design, synthesis, and biological evaluation of abiotic, non-lactone modulators of LuxR-type quorum sensing
作者:Christine E. McInnis、Helen E. Blackwell
DOI:10.1016/j.bmc.2011.06.072
日期:2011.8
Quorumsensing (QS) is a cell–cell signaling mechanism that allows bacteria to monitor their population size and alter their behavior at high cell densities. Gram-negative bacteria use N-acylated L-homoserine lactones (AHLs) as their primary signals for QS. These signals are susceptible to lactone hydrolysis in biologically relevant media, and the ring-opened products are inactive QS signals. We have
Non-Lactone Carbocyclic and Heterocyclic Antagonists and Agonists of Bacterial Quorum Sensing
申请人:BLACKWELL Helen E.
公开号:US20110046195A1
公开(公告)日:2011-02-24
Compounds which modulate quorum sensing in quorum sensing bacteria. Compounds of the invention inhibit quorum sensing and/or activate quorum sensing in various bacteria. Compounds that inhibit quorum sensing are particularly useful for inhibition of detrimental bacterial biofilm formation. Compounds that activate quorum sensing are particularly useful for promoting growth and biofilm formation of beneficial bacterial.
Method and compositions suitable for treatment of wounds
申请人:QuoNova Europe GmbH
公开号:EP2100602A1
公开(公告)日:2009-09-16
Compositions for the treatment of areas of compromised skin integrity as well as pharmaceutical preparations and medicaments containing them are provided. Methods of treatment and prevention of microbial damages and diseases, in particular for diseases of compromised skin integrity where there is an advantage in inhibiting quorum sensing regulated phenotypes of pathogens is also provided.