Allocolchicinoids bearing a Michael acceptor fragment for possible irreversible binding of tubulin

Literature Information

Publication Date 2020-06-04
DOI 10.1039/D0MD00060D
Impact Factor 0
Authors

Ekaterina S. Sazanova, Iuliia A. Gracheva, Diane Allegro, Pascale Barbier, Elena V. Svirshchevskaya, Alexey Yu Fedorov


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Abstract

We describe an attempt to apply the concept of covalent binding towards the highly active allocolchicinoids selected on the basis of SAR analysis of previously synthesized molecules. To achieve the irreversible binding of the agent to the cysteine residues of the colchicine site of tubulin protein, we synthesized a number of new allocolchicinoids bearing the acceptor moiety. Some of the new derivatives possess cytotoxic activity against COLO-357, BxPC-3, HaCaT, and HEK293 cell lines in a low nanomolar range of concentrations. A substoichiometric mode of microtubule assembly inhibition was demonstrated. The most active compounds possess close to colchicine general toxicity on mice.

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