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 ...