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Pubmed ID :29670701
Publication Date : //

Rhodanine as a Potent Scaffold for the Development of Broad-Spectrum Metallo-β-lactamase Inhibitors.


A series of rhodanines was constructed, their Z-configuration was confirmed by small molecule X-ray crystal structures, and their activity against metallo-β-lactamases (MβLs) was measured. The obtained 26 molecules and a thioenolate specifically inhibited the MβL L1 with an IC range of 0.02-1.7 μM, and compounds - exhibited broad-spectrum inhibition of the MβLs NDM-1, VIM-2, ImiS, and L1 with IC values <16 μM. All inhibitors increased the antimicrobial effect of cefazolin against cells expressing L1, resulting in a 2-8-fold reduction in MIC. Docking studies suggested that the nitro (NDM-1, CphA, and L1) or carboxyl group (VIM-2) of coordinates one or two Zn(II) ions, while the -phenyl group of the inhibitor enhances its hydrophobic interaction with MβLs. These studies demonstrate that the diaryl-substituted rhodanines are good scaffolds for the design of future broad-spectrum inhibitors of MβLs.

Authors : Xiang Yang , Chen Cheng , Wang Wen-Ming , Xu Li-Wei , Yang Ke-Wu , Oelschlaeger Peter , He Yuan ,

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