Utilization of 2-ethoxymethylene-3-oxobutanenitrile in the synthesis of heterocycles possessing biological activity

Add time:08/30/2019    Source:sciencedirect.com

2-Ethoxymethylene-3-oxobutanenitrile is a versatile trifunctional reagent that allows the introduction of a three-carbon moiety to amine-substrates. The reaction of the title compound with hydrazines has been studied leading to appropriate substituted pyrazoles 4–11. Reactions with other dinitrogen nucleophiles were studied giving access to a set of fused pyrimidines 13. All types of compounds displayed biological activity against bacteria, filamentous fungi and tumour HeLa cells, but not for yeasts. Pyrazole 10 and pyrimidine 13d have been found to possess the broadest activity.

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