Abstract
In an attempt to find a new class of antimicrobial agents, in the present study we report the synthesis of bipartite hybrid styryl derivatives of quinoxaline containing para-aminobenzoic acid (PABA) and their biological evaluation as antimicrobial agents. The series of new substituted styryl based derivatives 5(a–k) were evaluated for antimicrobial potential against various bacteria including Staphylococcus aureus, Vibrio cholerae, Escherichia coli, Bacillus subtilis, Escherichia coli, Mycobacterium smegmatis, Pseudomonas aeruginosa and fungi; C. albicans, with ampicillin and amphotericin B as standards. Similarly these compounds were also screened for anti-cancer activity using MCF-7 cell line. Among the synthesized compounds, 5(c) was observed to be the most active compound against various strains with MIC in a range of 7.9–31 μM of the series and compound 5i came out with significant anti-cancer activity with IC50 value of 7 μM.
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