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Issue 27, 2015
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Exploring carbonic anhydrase inhibition with multimeric coumarins displayed on a fullerene scaffold

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Abstract

Carbonic anhydrases (CAs) are ubiquitous Zn metallo-enzymes that catalyze the reversible hydration/dehydration of CO2/HCO3. CAs are involved in many key biological processes, therefore their inhibition has become an attractive research field. Distinct families of CA inhibitors (CAIs) have been reported, most of them interacting with the Zn(II) at the active site. Some compounds such as the coumarins are hydrolyzed before binding the entrance of the active site cavity, and thus behave as “suicide” inhibitors. This study reports the first synthesis of multimeric suicide inhibitors, designed to address the selectivity and the potency of CA multivalent inhibition. Twelve coumarin units have been grafted to a central fullerene scaffold thanks to a CuAAC reaction and the final dodecamers were assayed against 4 relevant CAs. The multimers were always stronger inhibitors than the monomeric species but no strong “multivalent effect” was found. However, our study showed that the multimeric presentation of the coumarin around the C60, indeed affected the selectivity of the relative inhibition among the 4 CAs assayed.

Graphical abstract: Exploring carbonic anhydrase inhibition with multimeric coumarins displayed on a fullerene scaffold

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Supplementary files

Article information


Submitted
18 May 2015
Accepted
04 Jun 2015
First published
04 Jun 2015

Org. Biomol. Chem., 2015,13, 7445-7451
Article type
Paper
Author version available

Exploring carbonic anhydrase inhibition with multimeric coumarins displayed on a fullerene scaffold

M. Abellán-Flos, M. Tanç, C. T. Supuran and S. P. Vincent, Org. Biomol. Chem., 2015, 13, 7445
DOI: 10.1039/C5OB01005E

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