Add time:08/24/2019         Source:sciencedirect.com

A new series of 2,4,6-trisubstituted bis-pyrimidines were synthesized and evaluated for in vitro antiamoebic activity against HM1:IMSS strain of Entamoeba histolytica. Out of 16 compounds 8 compounds have shown IC50 values in the range of 0.10–1.86 μM. Bis-pyrimidine having methyl-, methoxy-, thiomethyl- and dimehyl-phenyl substituents, exhibited higher antiamoebic activity than the reference drug metronidazole (IC50 = 1.9 μM). The toxicological studies of active compounds on PC12-rat pheochoromocytoma cell line showed that all compounds were non-toxic at a concentration of 100 μM. 4-4′-Benzene-1,3-diylbis[6-(4-methylphenyl-2-(piperidin-1-yl)pyrimidine] (4c) was found most active (IC50 = 0.10 μM) and least toxic among all the compounds.

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