Keywords
[5+1] heterocyclization
in vitro antibacterial screening
cross-imidination
formamidines
microwave-assisted reactions
multicomponent reactions
pyrimidinones
tandem reactions
thieno[2,3-b]pyridines
Abstract
A three-component protocol involving the reaction of 3-aminothieno[2,3-b]pyridine-2-carboxylate, Me2NCH(OMe)2 and heteroaryl (bis)amines in dioxane under microwave irradiation yielded a new series of pyrimidinones. The target hybrids were formed by an initial formamidine formation,Pyrazole-linked pyrimidinones displayed the best antibacterial activity against all the gram-positive and negative strains tested.
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