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Synthesis and Antimicrobial Activities of Some New Azetidin-2-ones and Thiazolidin-4-ones

Author(s): Shobha R Desai, UV Laddi, Rajani S Bennur, SC Bennur

Various (4-substituted) phenyl-3-β-[(N-benzenesulphonyl/tosyl)-4-(un)substituted anilino]propionylamido-1,3-thiazolidine- 4-ones (3a–x) and 1-β-[(N-benzenesulphonyl/tosyl)-4-(un)substituted anilino]-propionylamido-3-chloro-4-(4- substituted)phenyl-azetidin-2-ones (4a–x) have been synthesised by the cyclocondensation of Schiff bases (2a-x) with thioglycolic acid and chloroacetyl chloride, respectively. The structures of the newly synthesised compounds have been established on the basis of their spectral data and elemental analysis. All compounds were evaluated for antimicrobial activities against Escherichia coli, Bacillus cirroflagellosus, Aspergillus niger and Colletotrichum capsici. Most compounds investigated exhibited significant antifungal activity against Colletotrichum capsici, comparable to that of fluconazole, the standard used.

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