Der Pharma Chemica
Journal for Medicinal Chemistry, Pharmaceutical Chemistry, Pharmaceutical Sciences and Computational Chemistry
ISSN: 0975-413X
Abstract
Synthesis and antibacterial evaluation of some N-(p-substituted benzylidene)-5-ethyl-1,3,4-thiadiazole-2-amines
Author(s): Sunil Kumar, S. K. Sharma and Sandeep JainA series of Schiff’s bases i.e., N-(p-substituted benzylidene)-5-ethyl-1, 3, 4-thiadiazole-2-amines were synthesized from 2-amino-5-ethyl-1, 3, 4-thiadiazole 1 and evaluated for their in vitro antibacterial activity. Reaction of thiosemicarbazide with propanoic acid in presence of concentrated sulfuric acid furnished the compound 1 which on further reaction with different p-substituted benzaldehydes yielded the Schiff’s bases 2. These compounds were characterized by spectral analysis. All the synthesized compounds were screened for their in vitro for their antibacterial activity against two Gram positive bacterial strains (Bacillus subtilis and Staphylococcus aureus) and two Gram negative bacterial strains (Escherichia coli and Pseudomonas aeruginosa) and their minimum inhibitory concentration (MIC) were determined.
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