Abstract

A new series of 2-amino-4-phenyl-6-hydroxy-7-alkyl-pyranobenzoquinones was synthesized as ATP-competitive CK2 inhibitors. They were readily synthesized through a three-component Knoevenagel condensation-Michael addition-heterocyclization reaction from aldehydes, malononitrile, and 3-alkyl-2,5-dihydroxybenzoquinones. Some of the synthesized compounds presented interesting inhibitory activity with IC50 values in the submicromolar range. A structure-activity relationship study was carried out and the mode of binding was analysed by docking studies and supported by ATP competition assays.

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