2. Academic Validation
  3. 2-(3'-Indolyl)-N-arylthiazole-4-carboxamides: Synthesis and evaluation of antibacterial and anticancer activities

2-(3'-Indolyl)-N-arylthiazole-4-carboxamides: Synthesis and evaluation of antibacterial and anticancer activities

  • Bioorg Med Chem Lett. 2015 Oct 1;25(19):4225-31. doi: 10.1016/j.bmcl.2015.07.105.
Mukund P Tantak 1,  Jing Wang 2,  Rajnish Prakash Singh 3,  Anil Kumar 1,  Kavita Shah 4,  Dalip Kumar 5
Affiliations

Affiliations

  • 1 Department of Chemistry, Birla Institute of Technology and Science, Pilani 333031, Rajasthan, India.
  • 2 Department of Chemistry, Purdue Cancer Center, Purdue University, 560 Oval Drive, West Lafayette, IN 47907, USA.
  • 3 Department of Biological Sciences, Birla Institute of Technology and Science, Pilani 333031, Rajasthan, India.
  • 4 Department of Chemistry, Purdue Cancer Center, Purdue University, 560 Oval Drive, West Lafayette, IN 47907, USA. Electronic address: shah23@purdue.edu.
  • 5 Department of Chemistry, Birla Institute of Technology and Science, Pilani 333031, Rajasthan, India. Electronic address: dalipk@pilani.bits-pilani.ac.in.
PMID: 26298501 DOI: 10.1016/j.bmcl.2015.07.105
Abstract

A new series of 2-(3'-indolyl)-N-arylthiazole-4-carboxamides 17a-p has been designed and synthesized. Initial reaction of readily available thioamides 15 with bromopyruvic acid under refluxing conditions produced different thiazole carboxylic acids 16 which upon coupling with arylamines by using EDCI·HCl and HOBt afforded diverse arylthiazole-4-carboxamides 17a-p in 78-87% yields. Antibacterial activity evaluation against Gram-positive and Gram-negative Bacterial strains led to compounds 17i-k and 17o as potent and selectively (Gram-negative) Antibacterial agents. The cytotoxicity of thiazole carboxamides 17a-p was also evaluated on a panel of human Cancer cell lines. Among the tested derivatives, compounds 17i (IC50=8.64μM; HEK293T) and 17l (IC50=3.41μM; HeLa) were identified as the most potent analogues of the series. Preliminary mechanism of action studies of thiazole carboxamide 17i suggested that its cytotoxicity against HeLa cells involves the induction of cell death by Apoptosis.

Keywords

Antibacterial; Apoptosis; Cancer; Cytotoxicity; Indoles; Thiazole carboxamides.

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