38838-27-6Relevant articles and documents
Allocolchicinoids bearing a Michael acceptor fragment for possible irreversible binding of tubulin
Allegro, Diane,Barbier, Pascale,Fedorov, Alexey Yu,Gracheva, Iuliia A.,Sazanova, Ekaterina S.,Svirshchevskaya, Elena V.,Combes, Sébastien
, p. 696 - 706 (2020)
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. This journal is
Discovery of dihydrofuranoallocolchicinoids - Highly potent antimitotic agents with low acute toxicity
Shchegravina, Ekaterina S.,Svirshchevskaya, Elena V.,Combes, Sebastien,Allegro, Diane,Barbier, Pascale,Gigant, Benoit,Varela, Paloma F.,Gavryushin, Andrei E.,Kobanova, Daria A.,Shchekotikhin, Andrey E.,Fedorov, Alexey Yu
, (2020)
Two series of heterocyclic colchicinoids bearing β-methylenedihydrofuran or 2H-pyran-2-one fragments were synthesized by the intramolecular Heck reaction. Methylenedihydrofuran compounds 9a and 9h were found to be the most cytotoxic among currently known
A Facile Synthetic Approach to Nonracemic Substituted Pyrrolo-allocolchicinoids Starting from Natural Colchicine
Shchegravina, Ekaterina S.,Svirshchevskaya, Elena V.,Schmalz, Hans-Günther,Fedorov, Alexey Yu
, p. 1612 - 1622 (2019/03/26)
A six-step semisynthetic approach towards chiral nonracemic pyrrolo-allocolchicinoids starting from naturally occurring colchicine was developed. The synthetic scheme includes an electrocyclic tropolone ring contraction to afford allocolchicinic acid followed by the Curtius reaction, giving the corresponding aniline. The Sandmeyer reaction and copper-mediated hydrazination gave hydrazine-substituted allocolchicine. This was introduced into the Fischer indole synthesis, affording libraries of regioisomeric indole-based allocolchicine congeners.