Benzo[e]isoindole-1,3-diones as Potential Inhibitors of Glycogen Synthase Kinase-3 (GSK-3). Synthesis, Kinase Inhibitory Activity, Zebrafish Phenotype, and Modeling of Binding Mode

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Abstract

Benzo[e]isoindole-1,3-dione derivatives were synthesized, and the effects on GSK-3beta activity and zebrafish embryo growth were evaluated. A series of derivatives show obvious inhibitory activity against GSK-3beta. The most potent inhibitor, 7,8-dimethoxy-5-methylbenzo[e]isoindole-1,3-dione (8a), shows nanomolar IC(50) and obvious phenotype on zebrafish embryo growth associated with the inhibition of GSK-3beta at low micromolar concentration. The interaction mode between 8a and GSK-3beta was characterized by computational modeling.

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