期刊
CHEMMEDCHEM
卷 4, 期 5, 页码 749-755出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cmdc.200900034
关键词
antiadhesive drugs; antibiotics; E. coli; click chemistry; multivalency
资金
- Centre National de la Recherche Scientifique
- Ministere Delegue a l'Enseignement Superieur et a la Recherche
- Conseil Regional de Picardie
Urinary tract infections caused by uropathogenic Escherichia coli presents a serious communal and nosocomial health problem initiated by bacterial adhesion to the bladder cells. E coli expresses fimbriae with a mannose-binding adhesin, FimH, at the tip. Heptyl alpha-D-mannoside (HM) is a nanomolar inhibitor of this lectin, preventing adhesion of type 1-piliated E. coli and reducing bacteria levels in a murine cystitis model. Herein, we described the synthesis of multimeric heptyl-mannosides with valencies ranging from one to four by copper-catalyzed azide alkyne cycloaddition (CuAAC). Biological evaluation of the multivalent compounds revealed an increase in potency compared to HM. Inhibition of bladder cell binding highlighted a promising tetravalent derivative with inhibitory concentrations 6000-and 64-fold lower than mannose and HM respectively.
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