4.5 Article

Evaluation of (acyloxy)alkyl ester linkers for antibiotic release from siderophore-antibiotic conjugates

Journal

BIOORGANIC & MEDICINAL CHEMISTRY LETTERS
Volume 25, Issue 21, Pages 4987-4991

Publisher

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.bmcl.2015.02.034

Keywords

Siderophore; Antibiotic delivery; Linker stability

Funding

  1. Searle Scholars Program (Kinship Foundation)
  2. Department of Chemistry at MIT

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The syntheses of five ciprofloxacin-modified (acyloxyl) alkyl esters and two siderophore-ciprofloxacin conjugates based on enterobactin that harbor such hydrolyzable linkages are reported. The hydrolytic stabilities of ciprofloxacin-modified (acyloxy) alkyl esters, evaluated at pH 7.5 and 30 degrees C, vary by >370-fold depending on the substituents in the vicinity of the ester linkage. (C) 2015 Elsevier Ltd. All rights reserved.

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