Page 33 - 2019

Ph.D.
(Parmacy)
DESIGN, MOLECULAR DOCKING, SYNTHESIS AND BIOLOGICAL EVALUATION
OF BENZIMIDAZOLE DERIVATIVES AS ANTIMICROBIAL AGENTS

Ph.D. Scholar : Gami Rajeshkumar Becharbhai
Research Supervisor : Dr. L. J. Patel

Regi. No.: 12146021004
Abstract :
The major challenge of medicinal chemistry is to discover new and potent antimicrobial
agents having less toxicity and resistance. Benzimidazole derivatives were reported as
antimicrobial activity. For design of new novel benzimidazole molecules literature review
was carried out on synthetic scheme for benzimidazole and their pharmacological action.
Sixty six compounds of benzimidazole derivative were designed and docking study of
them done using Surflex software. Among them twenty eight compounds with good
docking score were selected and synthesized by condensing o-phenylene diamine with
substituted aliphatic and aromatic acids. All synthesized compound were docked on
1MOQ for antibacterial, 2WUZ for antifungal in order to predict the binding affinity of
synthesized compounds using Surflex. Thin layer chromatography (TLC), Infra-red
spectroscopy, Mass spectroscopy and PMR were used for characterisation of
synthesized compounds. The synthesized compounds were evaluated for antibacterial
activity on S. aureus, and E.coli strain of bacteria. The Aspargillus niger fungi strain was
used for evaluation antifungal activity. SAR study of benzimidazole derivative were done.
The result of biological activity indicates that 2-fluoro substituted benzimidazole
compound is the most active compound among all 28 compounds. These results also
compare with docking results. The current research will help in discovery of novel potent
antibacterial, antifungal and antitubercular compounds.

Keywords: Benzimidazoles, o-phenylene diamine, Antimicrobial activity.

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