چکیده (انگلیسی):

In this study, five derivatives of 2-thiobarbituric acid were prepared under microwave irradiation (MWI) and conventional heating method. It was found that the preparation time wasreduced from 24 hours to 5-10 minutes by using microwave irradiation method. In microwave irradiation, the yield also comparatively very high (97.50-98.32%) than conventional method (74-78%). FT-IR, 1H-NMR spectral data were used to determine the structures of the compounds. The antimicrobial activity of the synthesized compounds were investigated by using Staphylococcus aureus, Bacillus megaterium, Escherichia coli and Pseudomonas aeruginosa bacteia. The zone of inhibition of the compounds were found in the range of 8 to 14 mm. In cytotoxic analysis, the mortality 74-89% were appeared when sample concentration were (0.78-6.25) μg/ml and more than 6.25 μg/ml concentration showed 100% mortality. The antimicrobial and cytotoxic activity of synthesized compoundswas found due to the presence of a reactive and unsaturated ketone.