Synthesis of hybrids thiazole–quinoline, thiazole–indole and their analogs: in vitro anti-proliferative effects on cancer cell lines, DNA binding properties and molecular modeling
In an attempt to discover new potent inhibitors for Mycobacterium tuberculosis (Mtb), a series of 2-(2hydrazinyl)thiazole derivatives with a wide range of substitutions at 2-, 4- and 5-positions were designed by considering Lipinski rule. The designed compounds were synthesized, characterized and evaluated for their inhibitory potential against Mtb, H(37)Rv, by in vitro assay. The compounds, ethyl-4methyl-2-[(E)-24]-(pyridin-2-yl)ethylidene]hydrazin-1-yl]-1,3-thiazole-5-carboxylate, 4d, and ethyl-2[(E)-2-[(2-hydroxyphenyl)methylidenelhydrazin-1-yl]-4-methyl-1,3-thiazole-5-carboxylate, 2i showed noticeable inhibitory activity against Mtb, H37Rv with minimum inhibitory concentration (MIC) of 12.5 pM and 25 1.1M respectively. An attempt has been made to understand the mechanism of action by binding interactions of these molecules with 0-ketoacyl-ACP synthase protein through docking studies. The inhibition constants for compounds 4d and 2i were found to be 1.46 pM and 0.177 pM respectively. (C) 2013 Elsevier Masson SAS. All rights reserved.
Synthesis of hybrids thiazole–quinoline, thiazole–indole and their analogs: <i>in vitro</i> anti-proliferative effects on cancer cell lines, DNA binding properties and molecular modeling
作者:Paulo Fernando da S. Santos-Junior、Igor José dos S. Nascimento、Edjan Carlos D. da Silva、Kadja Luana C. Monteiro、Johnnatan D. de Freitas、Samaysa de Lima Lins、Thamilla Maria S. Maciel、Bruno C. Cavalcanti、José de Brito V. Neto、Fabiane C. de Abreu、Isis M. Figueiredo、Josué Carinhanha C. Santos、Claudia do Ó Pessoa、Edeildo F. da Silva-Júnior、João X. de Araújo-Júnior、Thiago M. de Aquino
DOI:10.1039/d1nj02105b
日期:——
A quinoline–thiazole hybrid was synthesized, which showed cytotoxicity against the HL-60 cell line. Electrochemical and spectroscopic experiments suggested DNA as the biological target.