Abstract
Three series of novel bile acid conjugates with different –amino acid have been synthesized. The synthesis of final compounds was accomplished with anhydride using ethyl chloroformate. The conjugation was introduced via coupling of the bile acid anhydride with appropriately functionalized α-amino acid. Biological evaluation of synthesized compounds was carried out in vitro for their antimicrobial and antifungal properties against human pathogens. The bile acid conjugates 1g, 2g, 2h and 3g indicated 2–fold stronger antimicrobial activity compared to ciprofloxacin. The final products were obtained in both high yield and purity. The prepared conjugated bile acids were characterized by mass spectrometry, infrared spectroscopy and nuclear magnetic resonance proton spectroscopy which are also discussed along with the thin–layer chromatographic properties.
Keywords: α-amino acids, antimicrobial activity, bile acids, conjugated bile acid, MIC values.
Current Bioactive Compounds
Title:Antibacterial and Antifungal Screening of Novel α-amino Acid Conjugated Bile Acid Derivatives
Volume: 10 Issue: 4
Author(s): Kalpesh Parikh, Dhaval Savaliya and Deepkumar Joshi
Affiliation:
Keywords: α-amino acids, antimicrobial activity, bile acids, conjugated bile acid, MIC values.
Abstract: Three series of novel bile acid conjugates with different –amino acid have been synthesized. The synthesis of final compounds was accomplished with anhydride using ethyl chloroformate. The conjugation was introduced via coupling of the bile acid anhydride with appropriately functionalized α-amino acid. Biological evaluation of synthesized compounds was carried out in vitro for their antimicrobial and antifungal properties against human pathogens. The bile acid conjugates 1g, 2g, 2h and 3g indicated 2–fold stronger antimicrobial activity compared to ciprofloxacin. The final products were obtained in both high yield and purity. The prepared conjugated bile acids were characterized by mass spectrometry, infrared spectroscopy and nuclear magnetic resonance proton spectroscopy which are also discussed along with the thin–layer chromatographic properties.
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Cite this article as:
Parikh Kalpesh, Savaliya Dhaval and Joshi Deepkumar, Antibacterial and Antifungal Screening of Novel α-amino Acid Conjugated Bile Acid Derivatives, Current Bioactive Compounds 2014; 10 (4) . https://dx.doi.org/10.2174/1573407210666140909201409
DOI https://dx.doi.org/10.2174/1573407210666140909201409 |
Print ISSN 1573-4072 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-6646 |
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