Design, Efficient Synthesis, Mechanism of Reaction and Antiproliferative Activity Against Cancer And Normal Cell Lines of A Novel Class of Fused Pyrimidine Derivatives
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This work concentrated on the utility of hydrazonoyl halides in synthesis of bioactive heterocycles like triazoles, pyrazoles, pyrimidines and their fused derivatives which have a wide spectrum of pharmaceutical value. Herein we discussed the synthesis of new heterocyclic compounds containing fused pyrimidine rings derived from hydrazonoyl halides and their significant pharmaceutical importance as anticancer agents. New fused pyrimidine derivatives bearing 1,2,3-triazole moiety were prepared via reaction of enaminone 2 with and 6-amino-2-thioxo-pyrimidin-4-one and then with hydrazonoyl chlorides 6a-h. In addition 3-amino-6-(2-oxo-2H-chromen-3-yl)pyridine-2-carbonitrile (12) was submitted to react with carbon dioxide to afford 3-(1,2,3,4-tetrahydro-2,4-dithioxopyrido[2,3-d]pyrimidin-7-yl)-2H-chromen-2-one (15), which act as key molecule for synthesis of new series of fused prymidinethione derivatives containing coumarine moiety via its reaction with different selected derivatives of hydrazonoyl halides 6a-h. Structures of the newly synthesized compounds were confirmed using spectral data (IR, H1NMR and Mass spectrometry) and microanalytical methods. Also, they screened for their anticancer activity.
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