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Synthesis, in vitro anticancer and antioxidant activity of thiadiazole substituted thiazolidin-4-ones Cover

Synthesis, in vitro anticancer and antioxidant activity of thiadiazole substituted thiazolidin-4-ones

Open Access
|Oct 2013

Abstract

A series of novel 5-alkyl/aryl thiadiazole substituted thiazolidin-4-ones were synthesized by a two-step process. In the first step, 5-alkyl/aryl substituted 2-aminothiadiazoles were synthesized, which on reaction with substituted aromatic aldehydes and thioglycolic acid in the presence of dicyclohexylcarbodiimide afforded thiazolidin- 4-ones. All the compounds were synthesized in fairly good yields and their structures were confirmed by spectral and physical data. The title compounds were screened for in vitro anti-proliferative activity on human breast adenocarcinoma cells (MCF-7) by MTT assay. Most of the derivatives showed an IC50 less than 150 μmol L-1. Among the compounds tested, 2-(2-nitrophenyl)- 3-(5-methyl-1,3,4-thiadiazol-2-yl)-thiazolidin-4-one (3f), 2-(3-fluorophenyl)-3-(5-methyl-1,3,4-thiadiazol-2- -yl)-thiazolidin-4-one (3b), and 2-(4-chlorophenyl)-3- -(5-methyl-1,3,4-thiadiazol-2-yl)-thiazolidin-4-one (3c) were found to be the most active derivatives with IC50 values of 46.34, 66.84, and 60.71 μmol L-1, respectively. Antioxidant studies of all the synthesized compounds were carried out by diphenylpicrylhydrazyl (DPPH) assay. Among the compounds tested, 2-phenyl-3-(5-styryl- -1,3,4-thiadiazol-2-yl)-thiazolidin-4-one (3s) elicited superior antioxidant activity with IC50 of 161.93 μmol L-1.

DOI: https://doi.org/10.2478/acph-2013-0028 | Journal eISSN: 1846-9558 | Journal ISSN: 1330-0075
Language: English
Page range: 397 - 408
Published on: Oct 22, 2013
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year
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© 2013 Alex Joseph, Chaitanyakumar S. Shah, Suthar Sharad Kumar, Angel Treasa Alex, Naseer Maliyakkal, Sudheer Moorkoth, Jessy Elizabeth Mathew, published by Croatian Pharmaceutical Society
This work is licensed under the Creative Commons License.