Title:Novel 5-fluoro-6-(4-(2-fluorophenyl)piperazin-1-yl)-2-(4-(4-methylpiperazin-
1-yl)phenyl)-1H-benzo[d]imidazole Derivatives as Promising Urease Inhibitors
Volume: 21
Issue: 2
Author(s): Ebrahim Saeedian Moghadam, Abdullah Mohammed Al-Sadi, Meysam Talebi, Massoud Amanlou, Raphael Stoll, Mohsen Amini*Raid Abdel-Jalil*
Affiliation:
- Department of Medicinal Chemistry, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran
1417614411, Iran
- Drug Design and Development Research Center, The Institute of Pharmaceutical Sciences (TIPS),
Tehran University of Medical Sciences, Tehran, Iran
- Department of Chemistry, College of Science, Sultan Qaboos University, Muscat, P.O. Box 36, P.C. 123, Sultanate of
Oman
Keywords:
Benzimidazole, drug design, helicobacter pylori, heterocyclic chemistry, synthesis, urease inhibitor.
Abstract:
Background: Highly pathogenic bacteria colonize and maintain themselves with the aid of an
enzyme called urease. Consequently, inhibiting urease enzymes can be a promising method for preventing
ureolytic bacterial infections.
Objective: This study aimed at synthesizing and screening a novel series of benzimidazole derivatives..
Methods: Nine novel benzimidazole derivatives 10α-Ɣ were synthesized and isolated. Their structures
were elucidated by 1H-NMR and IR spectroscopic techniques besides HRMS. The urease inhibition activity
of these compounds was evaluated using the standard urease enzyme inhibition kit. An MTT assay
was performed on the NIH-3T3 cell line to investigate the cytotoxicity profile.
Results: All benzimidazoles 10α-Ɣ exhibited higher urease inhibition activity (3.06–4.40 μM) than the
reference standards thiourea and hydroxyurea (IC50: 22 and 100 μM, respectively). 10Ɣ-1 and 10α-1 exhibited
the best activity with the IC50 values of 3.06 and 3.13 μM, respectively. Investigation of the cytotoxicity
profile of the target compound showed that all 10α-Ɣ have IC50 values higher than 50 μM on the
tested cell line.
Conclusion: The results showed that synthesized benzimidazole derivatives could be highly effective as
urease inhibitors.