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  • Title: Design, synthesis and biological evaluation of novel 2-[(2,4-diaryl-3-azabicyclo[3.3.1]nonan-9-ylidene)hydrazono]-1,3-thiazolidin-4-ones as a new class of antimicrobial agents.
    Author: Ramachandran R, Rani M, Kabilan S.
    Journal: Bioorg Med Chem Lett; 2009 May 15; 19(10):2819-23. PubMed ID: 19361987.
    Abstract:
    New series of 2,4-diaryl-3-azabicyclo[3.3.1]nonan-9-one thiosemicarbazones (9-16) obtained from the corresponding 2,4-diaryl-3-azabicyclo[3.3.1]nonan-9-ones (1-8) upon cyclization with ethylbromoacetate in the presence of sodium acetate-acetic acid buffer afforded novel 2-[(2,4-diaryl-3-azabicyclo[3.3.1]nonan-9-ylidene)hydrazono]-1,3-thiazolidin-4-ones (17-24). The synthesized compounds have been characterized by their elemental, analytical and spectral studies. Besides, the reported compounds were screened for their antibacterial and antifungal activities against a spectrum of microbial organisms. These studies proved that compounds 11/18/20/23 against Staphylococcus aureus, 19/20/24 against Salmonella typhi show maximum inhibition potency at low concentration (6.25microg/ml) whereas 18/19 against Candida albicans and 19/20/21 against Rhizopus sp. showed beneficial antifungal activity at minimum concentration.
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