Bioorganic and Medicinal Chemistry Letters p. 7345 - 7350 (2012)
Update date:2022-08-03
Topics:
Sarkis, Manal
Tran, Diem Ngan
Kolb, Stephanie
Miteva, Maria A.
Villoutreix, Bruno O.
Garbay, Christiane
Braud, Emmanuelle
CDC25 phosphatases are involved in deregulated cell cycle progression and tumor development with poor prognosis. Among the most potent CDC25 inhibitors, quinonoid-based derivatives have been extensively studied. Dimerisation of heterocyclic quinones has led to IRC-083864, a bis-quinone compound with increased CDC25B inhibitory activity. Thirty-one bis-thiazolone derivatives were synthesized and assayed for CDC25 inhibitory activity. Most of the dimers displayed enhanced inhibitory activities with micromolar IC50 values lower than that observed for each thiazolone scaffold separately. Moreover, most of these compounds were selective CDC25 inhibitors. Dimer 40 showed an IC 50 value of 2.9 μM and could inhibit CDC25 activity without generating reactive oxygen species which is likely to occur with quinone-based inhibitors. Molecular docking studies suggested that the dimers could bind simultaneously to the active site and the inhibitor binding pocket.
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