Synthesis, characterization and biological studies of some novel piperidinothiophenes | Abstract

Der Pharma Chemica
Journal for Medicinal Chemistry, Pharmaceutical Chemistry, Pharmaceutical Sciences and Computational Chemistry

ISSN: 0975-413X
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Synthesis, characterization and biological studies of some novel piperidinothiophenes

Author(s): Barnali Das, Sajal Srivastava, S. C. Dinda and Y. Rajendra Prasad

In an attempt to find a new class of antimicrobial agents having anti-inflammatory activity, a series of thiophene containing Schiff base moiety were prepared via the reaction of ketone, 4-N-methyl piperidone with the isobutylcyanoacetamide using ammonium acetate/glacial acetic acid as an acidic catalyst with the arrangement of continuous removal of water followed by reacting starting compounds with substituted aryl aldehydes. These compounds were screened for their antibacterial activity against Gram-positive bacteria (Bacillus subtilis and Staphylococcus aureus), Gram-negative bacteria (Escherichia coli and Klebsiella pneumonia) and antifungal activity against (Aspergillus niger and Candida albicans) by using cup plate method. The results clearly revealed the potential antimicrobial and anti-inflammatory activity of all these piperidinothiophenes when compared with the standard drug Ampicillin and Ibuprofen. Structures of the newly synthesized compounds were established by elemental analysis and spectral data.


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