Author(s): Ammar A. Razzak Mahmood Kubba, Wurood A. Shihab, Nada N Al-Shawi


DOI: 10.5958/0974-360X.2020.00591.0   

Address: Ammar A. Razzak Mahmood Kubba1*, Wurood A. Shihab2, Nada N Al-Shawi3
1Dept. of Pharmaceutical Chemistry, College of Pharmacy-University of Baghdad, Bab-Al-Mouadam, 10001, Baghdad-Iraq.
2Dept of Pharmaceutical Chemistry, University of Ashur-Baghdad, Al-Wazirya, Iraq.
3Dept of Pharmacology and Toxicology, College of Pharmacy-University of Baghdad, Bab-Al-Mouadam, 10001, Baghdad-Iraq.
*Corresponding Author

Published In:   Volume - 13,      Issue - 7,     Year - 2020

A series of three 5-(4-aminophenyl)-4-substituted phenyl- 2,4 dihydro-3H-1,2,4-triazole-3-thione analogs were designed, synthesized and investigated for anti-proliferative activity using in-silico and in vitro studies. The synthesis started by reaction of ethyl-4-aminobenzoate with hydrazine hydrate in absolute ethanol, to yield intermediate 1, then cyclization of intermediate 1 was performed by addition of carbon disulfide (CS2) in the presence of anhydrous potassium hydroxide (KOH) in absolute ethanol to afford the parent nucleus, 5-(4-aminophenyl)-1,3,4-oxadiazole-2-thione (2), which underwent nucleophilic substitution reaction with three different aromatic amines, using pyridinium trifluoroacetate (PTFA) as a catalyst, to yield three moieties of 1,2,4- triazole derivatives 3, 4 and 5, respectively. They were analyzed utilizing FTIR and 1HNMR spectroscopy, and their physical properties were measured. The target compounds (3, 4, and 5) were investigated for their plausible anti-proliferative effect against Epidermal Growth Factor Receptor (EGFR) drug target using molecular modeling, docking and simulations studies. As per docking results, compound 5 has shown the best inhibitory potential by showing binding energy of - 6.38Kcal/mol. Compounds 3 and 4 were shown to be the second and third best with estimated binding free energies of -6.12kcal/mol, and, followed by -6.02kcal/mol, respectively. Several interesting molecular level interactions have been revealed during the molecular dynamic (MD) simulation of compound 5 with EGFR drug target. To validate these insilico predictions, the three compounds were tested on two human cell lines, HeLa, and MCF-7 cancer cell lines, to check their antiproliferative activity. The cytotoxicity for compound 5 in this series was higher with IC50 value measured as 22.83µg/ml and 20.14 µg/ml for HeLa and MCF-7 cell lines, respectively in comparison with compound 3 (IC50 value was 36.71 µg/ml, 35.44 µg/ml), and compound 4, which demonstrated the lowest activity against both cell lines with IC50 value of 47.19 µg/ml, 45.82 µg/ml, HeLa and MCF-7 cell lines respectively. Invitro studies output was in agreement with insilico predictions that compound 5 among the tested compounds has the best potential to act as an anti-proliferative agent.

Cite this article:
Ammar A. Razzak Mahmood Kubba, Wurood A. Shihab, Nada N Al-Shawi. Insilico and in vitro Approach for Design, Synthesis, and Anti-proliferative Activity of Novel Derivatives of 5-(4-Aminophenyl)-4-Substituted Phenyl-2, 4-Dihydro-3H-1, 2, 4-Triazole-3-Thione. Research J. Pharm. and Tech. 2020; 13(7): 3329-3339. doi: 10.5958/0974-360X.2020.00591.0

Ammar A. Razzak Mahmood Kubba, Wurood A. Shihab, Nada N Al-Shawi. Insilico and in vitro Approach for Design, Synthesis, and Anti-proliferative Activity of Novel Derivatives of 5-(4-Aminophenyl)-4-Substituted Phenyl-2, 4-Dihydro-3H-1, 2, 4-Triazole-3-Thione. Research J. Pharm. and Tech. 2020; 13(7): 3329-3339. doi: 10.5958/0974-360X.2020.00591.0   Available on:

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