Synthesis of ciprofloxacin dimers for evaluation of bacterial permeability in atypical chemical space.
2015
Abstract We describe the synthesis and evaluation of a library of variably-linked ciprofloxacin dimers. These structures unify and expand on the use of fluoroquinolones as probes throughout the antibiotic literature. A dimeric analog ( 19 ) showed enhanced inhibition of its intracellular target (DNA gyrase), and translation to antibacterial activity in whole cells was demonstrated. Overall, cell permeation was governed by physicochemical properties and bacterial type. A principal component analysis demonstrated that the dimers occupy a unique and privileged region of chemical space most similar to the macrolide class of antibiotics.
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