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European journal of medicinal chemistry

Synthesis, in vitro cytotoxicity and apoptosis inducing study of 2-aryl-3-nitro-2H-chromene derivatives as potent anti-breast cancer agents.


PMID 25216378

Abstract

A series of 2-aryl-3-nitro-2H-chromenes 4a-u were designed as hybrid analogs of flavanone, β-nitrostyrene and nitrovinylstilbene scaffolds. They were synthesized from the reaction of appropriate β-nitrostyrenes and salicylaldehydes in good yields. Inxa0vitro cytotoxic activities of compounds 4a-u were tested against breast cancer cell lines including MCF-7, T-47D and MDA-MB-231. Most compounds exhibited good cytotoxic activity against selected cell lines, being more potent than standard drug etoposide. Representatively, 8-methoxy-3-nitro-2-(4-chlorophenyl)-2H-chromene (4l) with IC50xa0=xa00.2xa0μM against MCF-7xa0cells, was 36-times more potent than etoposide. Apoptosis as a mechanism of cell death for selected compounds 4h and 4l was confirmed morphologically by acridine orange/ethidium bromide double staining and TUNEL analysis, as well as caspase-3 activation assay.

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