A novel run of fused heterocyclic derivatives containing pyridine moieties has been disclosed by allowing 2‐amino‐4‐phenyl‐6‐(phenyl amino)pyridine‐3,5‐dicarbonitrile 1 to undergo annulation reactions with different reagents. Most of synthesized compounds have moderate to strong antitumor activity against HePG‐2 and MCF‐7. Moreover, MOE 2014.09 software was used to run the computational studies to support the biological activity results. The assigned structures for all the newly prepared derivatives were ascertained on the basis of elemental analyses and spectral data.
A number of 2-amino-4-aryl-6-substituted pyridine-3,5-dicarbonitrile derivatives were synthesized via one-pot multicomponent condensation reactions of different aromatic aldehydes with malononitrile and different primary amines, using different molecular ratios and different reaction conditions to achieve considerable product yields. Moreover, we succeed, for the first time to develop a new method to synthesize the aforementioned under the fusion condition without using solvent and catalysts. With this method, a wide range of novel 2-amino-3,5-dicyano-4-aryl-6-substituted aminopyridine derivatives were synthesized with high yields and board substrate of functional groups. e synthesized pyridine derivatives were found to have a corrosion inhibition efficiency, the rate of which increased with the increasing concentration of the derivatives. e structures of the new compounds were elucidated by spectroscopic data and elemental analyses.
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