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Synthesis, Characterization and Antibacterial Activity of Some Amino Acid Derivatives | Abstract

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

ISSN: 0975-413X

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Abstract

Synthesis, Characterization and Antibacterial Activity of Some Amino Acid Derivatives

Author(s): Jawad Kadhum Shneine, Dina Ziad Qassem, Suhad Saad Mahmoud

The present work includes the synthesis of glycine and L-amino acid derivatives 6-10 (A,B) via Schiff`s bases 3 (A,B), which were obtained from the reaction of 2-aminopyridine 2 with benzaldehyde 1A or 4-chlorobenzaldehyde 1B. The reaction of 3 (A,B) with benzoyl chloride yielded benzamide derivatives 5 (A,B). The synthesis of 6-10 (A,B) has been performed by the reaction of 5 (A,B) with (glycine, L-alanine, L-phenylalanine, L-aspartic acid and L-asparagine). Infrared and nuclear magnetic spectroscopic techniques Fourier Transform Infrared (FT-IR), Proton Nuclear Magnetic Resonance (1H-NMR) and Carbon-13 nuclear magnetic resonance (13C-NMR) were used to characterize the newly synthesized compounds. The antibacterial activity of final products has been evaluated against two kinds of Gram-positive and Gram-negative bacteria (Staphylococcus aureus and Klebsiella pneumonia). Overall, results indicate a lower and moderate antibacterial activity in comparison with meropenem as a reference against both bacteria. The highest activity was obtained using the compound 7B for both kinds of bacteria and 6A for only K. pneumonia.


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