Abstract
Cdc25B phosphatase catalyzes the dephosphorylation and activation of cyclin-dependent kinases 2 (CDK2/CycA) and their overexpression has been reported in cancers. Although Cdc25B has received much attention as a drug target, its flat and featureless surface makes it challenging to develop new agents targeting this protein. In this study, we investigated the rational design of a series of bivalent triazine-based derivatives with the aim of simultaneously targeting the active site and the remote hotspot critical for the interaction with CDK2/CycA. Compounds 1e and 10, containing aromatic residues, were shown to inhibit Cdc25B activity selectively over Cdc25A at low micromolar concentration.
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