A series of N-substituted benzyl amine analogues of anacardic acid (6a-6v) were synthesized and evaluated for anti-bacterial activities against S. aureus, E. coli, P. aeruginosa and S. Pyogens. Compound 6q showed excellent activity compared to Ampicillin and Chloramphenicol and comparable activity with Ciprofloxacin (18 mm zone of inhibition). Compounds 6h and 6n exhibited comparable to better anti-bacterial activity and Compounds 6k, 6o, 6s, 6u and 6v exhibited moderate activity compared to Ampicillin and Chloramphenicol against S. aureus. Similarly molecules 6f, 6k and 6r showed moderate activity and others displayed inferior activity against S.pyogens. Compounds 6a, 6d, 6g, 6i and 6l showed comparable activity with Ampicillin and 6b, 6c, 6e, 6j and 6m displayed moderate activity against E.Coli. Compounds 6b, 6d, 6g, 6k, 6n, 6o and 6t exhibited at par activity with Chloramphenicol against P.aeruginosa. More or less all the compounds displayed inferior activities compared to Ciprofloxacin and Norfloxacin against the test strains.
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