Antibacterial Screening of Some Synthesized Palmitoyl Amino Acids and Their Aromatic Analogues

Abstract

Aims: The aims of the research were to synthesize, characterize some palmitoyl amino acids and their aromatic analogues and to screen the synthesized compounds for possible antibacterial activity Study Design: Synthesis, characterization and antibacterial screening of palmitoyl amino acids and their aromatic analogues. Place and Duration of Study: Department of Pharmaceutical and Medicinal Chemistry/ Department of Pharmaceutical Microbiology and Biotechnology, Faculty of Pharmacy, Niger Delta University, Wilberforce Island, between September 2012 and January 2013. Methodology: Palmitoylchloride was condensed with the respective amino acids (glycine, β-alanine, γ-amino butyric acid) to form the corresponding palmitoyl amino acids. The opening of the isatoic anhydride ring with the three amino acids and subsequent condensation with palmitoyl chloride led to the formation of the amino acid benzamides. The antibacterial screening was carried out using agar well diffusion method. Results: All the synthesized compounds were obtained in good yield and high purity; they were unequivocally characterized by the combination IR, 1H NMR, 13C NMR and MS. The compounds were however found to possess no antibacterial activity against the tested microorganisms Conclusion: This work has shown that both the straight chain and aromatic analogues of saturated long chain lipid amides are inactive against the tested strains of microorganism.