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Research Articles

Synthesis of new urease enzyme inhibitors as antiulcer drug and computational study

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Pages 8232-8247 | Received 14 Dec 2020, Accepted 23 Mar 2021, Published online: 16 Apr 2021
 

Abstract

In search of potent urease inhibitor indole analogues (1–22) were synthesized and evaluated for their urease inhibitory potential. All analogues (1–22) showed a variable degree of inhibitory interaction potential having IC50 value ranging between 0.60 ± 0.05 to 30.90 ± 0.90 µM when compared with standard thiourea having IC50 value 21.86 ± 0.90 µM. Among the synthesized analogues, the compounds 1, 2, 3, 5, 6, 8, 12, 14, 18, 20 and 22 having IC50 value 3.10 ± 0.10, 1.20 ± 0.10, 4.60 ± 0.10, 0.60 ± 0.05, 5.30 ± 0.20, 2.50 ± 0.10, 7.50 ± 0.20, 3.90 ± 0.10, 3.90 ± 0.10, 2.30 ± 0.05 and 0.90 ± 0.05 µM respectively were found many fold better than the standard thiourea. All other analogues showed better urease interaction inhibition. Structure activity relationship (SAR) has been established for all analogues containing different substituents on the phenyl ring. To understand the binding interaction of most active analogues with enzyme active site docking study were performed.

Communicated by Ramaswamy H. Sarma

Acknowledgements

The authors acknowledged the financial supports By Deanship of scientific research through Project no. 2019-211-IRMC, Imam Abdulrahman Bin Faisal University (IAU), Saudi Arabia.

Disclosure statement

No potential conflict of interest was reported by the authors.

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