Synthesis and Docking Study of Novel 4-Thiazolidinone Derivatives as Anti-Gram-positive and Anti-H. pylori Agents

Author(s): Armin Khomami, Mohammadamin Rahimi, Arash Tabei, Parastoo Saniee, Arash Mahboubi, Alireza Foroumadi, Nasrin Nassiri Koopaei, Ali Almasirad*.

Journal Name: Mini-Reviews in Medicinal Chemistry

Volume 19 , Issue 3 , 2019

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Abstract:

Background: Bacterial resistance to the available antibiotics is a life threatening issue and researchers are trying to find new drugs to overcome this problem. Amongst the different structural classes, thiazolidinone-4-one, as a new effective pharmacophore against various bacteria, has been introduced.

Objective: A new series of 2-(5-(5-nitrothiophene-2-yl)-1,3,4-thiadiazole-2-ylimino)-5-arylidenethiazolidin- 4-one derivatives were designed and synthesized as new antibacterial agents.

Method: Target compounds were synthesized during 5 steps and their in vitro antibacterial and anti-H. pylori activities were evaluated. The interaction of the most active derivatives with the probable targets was assessed by Auto Dock 4.2 Program.

Results: The results showed that the most potent compounds, 18, 22 and 23, displayed antibacterial activity versus S.aureus, S.epidermidis, B.cereus and B.subtilis (MIC, 1.56-12.5 µg/mL) and none of the derivatives were active on tested Gram-negative bacteria. Compound 12 in all considered doses and compounds 10, and 27 had strong anti-H. pylori activity (inhibition zone >20 mm) in 25 μg disc. Docking studies determined suitable interactions and affinity of potent compounds with bacterial MUR B and H. pylori urease enzymes.

Conclusion: According to the results most of the derivatives are effective anti-bacterial agents and docking evaluation confirmed their possible mechanisms of actions as MURB and Urease inhibitors.

Keywords: Autodock 4.2, Gram-positive, H. pylori, MURB, Nitrothiophene, 1, 3, 4-Thiadiazole, Urease.

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Article Details

VOLUME: 19
ISSUE: 3
Year: 2019
Page: [239 - 249]
Pages: 11
DOI: 10.2174/1389557518666181017142630
Price: $58

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