A number of nucleobase-based barbiturates have been synthesized by combination of nucleic acid bases and heterocyclic amines and barbituric acid derivatives through green and efficient multicomponent route and one pot reaction. This approach was accomplished efficiently using aqueous medium to give the corresponding products in high yield. The newly synthesized compounds were characterized by spectral analysis (FT-IR, 1H NMR, 13C NMR, HMBC, and UV spectroscopy) and elemental analysis. Representative of all synthesized compounds was tested and evaluated for antioxidant, bleomycin-dependent DNA damage, and Lymphocyte Transformation studies. Compounds TBC > TBA > TBG showed highest lymphocyte transformation assay, TBC > TBA > BG showed inhibitory antioxidant activity using ABTS methods, and TBC > BPA > BAMT > TBA > 1, 3
-TBA manifested the best protective effect against DNA damage induced by bleomycin.
A green, efficient, and novel one-pot multicomponent protocol was developed to achieve stereoselective (Z)-5-(arylpropenylidine)-2,4,6-pyrimidinetrione derivatives using a three-component reaction involving appropriate aromatic amines, formic acid, and barbituric acid using water as green solvent by conventional thermal heating process. In this way, N-formylation of various amines takes place.
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