Abstract
Flavonoids are naturally occurring compounds with versatile healthpromoting effects against various diseases. This aim of this paper is to synthesize and evaluate the biological activity of novel flavone derivatives against cancer. A new series of 2-hydroxy-α,β-unsaturated ketones 2a-h, was synthesized via the reaction of N-substituted-indole-3-carboxaldehyde 1a-h with 2-hydroxy acetophenone in the presence of piperidine. The oxidative cyclization of 2a-h using hydrogen peroxide/KOH and/or dimethyl sulfoxide/I2 produced the corresponding 2-(N-substituted-1H-indol-3-yl)-3-hydroxy-4H-chromen- 4-ones 3a-h and 2-(N-substituted-1H-indol-3-yl)-4H-chromen-4-ones 4a-h, respectively. Antiproliferative activities for synthesized series were investigated against HCT-116 colon and MCF- 7 breast cancer cell lines. Molecular downstream effects were evaluated using RT-PCR. Moreover, molecular docking was carried out to pinpoint the binding mode of the most active compounds into the active site of Akt enzyme (PDB ID: 3QKK). All compounds exhibited an anti-proliferative activity range of 52-97% and 67.2-99% against HCT-116 and MCF-7, respectively. Compounds 3b, 3h, 3g and 4h had a minimal inhibitory effect on normal BJ1 cells indicating their s...Continue Reading
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