SYNTHESIS AND ANTIMICROBIAL ACTIVITY OF SOME NEW 1,3,4- OXADIAZOLES, 1,2,4-TRIAZOLES AND 1,3,4-THIADIAZOLES
Journal: Indian Drugs (Vol.53, No. 6)Publication Date: 2016-06-28
Authors : Laddi U. V.; Desai S. R.;
Page : 18-23
Keywords : ;
Abstract
Some new 5-[(((α-phenyl/methyl)benzylidene)amino)oxy]methyl/ethyl-2-[4-(substituted aryl)/allyl)] amino-1,3,4-oxadiazoles (4a-p), 3-[(((α-phenyl/methyl)- benzylidene) amino)oxy]methyl/ethyl-4-(4- substitutedaryl)/allyl-5-mercapto-1,2,4-triazoles (5a-p) and 5-[(((α-phenyl/methyl)-benzylidene)amino) oxy]- methyl/ethyl-2-[4-(substituted aryl)/allyl)]amino-1,3,4-thiadiazoles (6a-p) were prepared starting from α/β-[((α-(phenyl/methyl)benzylidene)amino)oxy acetic/propionic acid hydrazides (1a-d). The structures of all the compounds have been established by elemental and spectral (IR, 1HNMR and mass) analysis. All the newly synthesised compounds have been screened for their antimicrobial activity against Escherichia coli, Bacillus cirroflagellosus, Aspergillus niger and Rhizoctonia bataticola. Some of the newly synthesised compounds have been evaluated for antituberculosis activity against Mycobacterium tuberculosis H37Rv strain by BACTEC radiometric system at Southern Research Institute, Birmingham, AL and Frederick Research Centre, Frederick, MD. Significant antimicrobial activity is observed against Escherichia coli and Rhizoctonia bataticola. A few compounds also exhibited interesting antitubercular activity against Mycobacterium tuberculosis H37Rv strain.
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