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Molecules 2016, 21(10), 1337;

Synthesis of Pyrazole-Thiobarbituric Acid Derivatives: Antimicrobial Activity and Docking Studies

Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Al-Azhar University, Assuit 71524, Egypt
Department of Chemistry, College of Science, King Saud University, P. O. Box 2455, Riyadh-11451, Saudi Arabia
Department of Chemistry, Faculty of Science, Alexandria University, P. O. Box 426, Ibrahimia, Alexandria 21321, Egypt
Microbiology and Immunology Department, Faculty of Pharmacy, Al-Azhar University, Cairo 11884, Egypt
Division of Microbiology, Pharmaceutics Department, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia
Author to whom correspondence should be addressed.
Academic Editor: Derek J. McPhee
Received: 18 August 2016 / Revised: 25 September 2016 / Accepted: 30 September 2016 / Published: 9 October 2016
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A one-pot reaction was described that results in various pyrazole-thiobarbituric acid derivatives as new pharmacophore agents. These new heterocycles were synthesized in high yields with a broad substrate scope under mild reaction conditions in water mediated by NHEt2. The molecular structures of the synthesized compounds were assigned based on different spectroscopic techniques. The new compounds were evaluated for their antibacterial and antifungal activity. Compounds 4h and 4l were the most active compounds against C. albicans with MIC = 4 µg/L. Compound 4c exhibited the best activity against S. aureus and E. faecalis with MIC = 16 µg/L. However, compounds 4l and 4o were the most active against B. subtilis with MIC = 16 µg/L. Molecular docking studies for the final compounds and standard drugs were performed using the OpenEye program. View Full-Text
Keywords: pyrazole; thiobarbituric acid; antimicrobial activity pyrazole; thiobarbituric acid; antimicrobial activity

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Elshaier, Y.A.M.M.; Barakat, A.; Al-Qahtany, B.M.; Al-Majid, A.M.; Al-Agamy, M.H. Synthesis of Pyrazole-Thiobarbituric Acid Derivatives: Antimicrobial Activity and Docking Studies. Molecules 2016, 21, 1337.

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