Synthesis, Characterization, and Cytotoxicity of a Novel Gold(III) Complex with O,O′-Diethyl Ester of Ethylenediamine-N,N′-Di-2-(4-Methyl)Pentanoic Acid

A novel gold(III) complex, [AuCl2{(S,S)-Et2eddl}]PF6, ((S,S)-Et2eddl = O,O′-diethyl ester of ethylenediamine-N,N′-di-2-(4-methyl)pentanoic acid) was synthesized and characterized by IR, 1D (1H and 13C), and 2D (H,H-COSY and H,H-NOESY) NMR spectroscopy, mass spectrometry, and elemental analysis. Dens...

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Main Authors: Nebojša Pantelić, Bojana B. Zmejkovski, Dragana D. Marković, Jelena M. Vujić, Tatjana P. Stanojković, Tibor J. Sabo, Goran N. Kaluđerović
Format: Article
Language:English
Published: MDPI AG 2016-09-01
Series:Metals
Subjects:
DFT
Online Access:http://www.mdpi.com/2075-4701/6/9/226
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spelling doaj-062e19610e4c481986cfc6d044c9ea6e2020-11-24T23:47:49ZengMDPI AGMetals2075-47012016-09-016922610.3390/met6090226met6090226Synthesis, Characterization, and Cytotoxicity of a Novel Gold(III) Complex with O,O′-Diethyl Ester of Ethylenediamine-N,N′-Di-2-(4-Methyl)Pentanoic AcidNebojša Pantelić0Bojana B. Zmejkovski1Dragana D. Marković2Jelena M. Vujić3Tatjana P. Stanojković4Tibor J. Sabo5Goran N. Kaluđerović6Department of Chemistry and Biochemistry, Faculty of Agriculture, University of Belgrade, Nemanjina 6, Belgrade-Zemun 11080, SerbiaDepartment of Chemistry, Institute of Chemistry, Tehnology and Metallurgy, University of Belgrade, Studenski Trg 14, Belgrade 11000, SerbiaInstitute of Oncology and Radiology, Belgrade 11000, SerbiaFaculty of Agronomy, University of Kragujevac, Cara Dušana 34, Čačak, Serbia 32000Institute of Oncology and Radiology, Belgrade 11000, SerbiaFaculty of Chemistry, University of Belgrade, Studentski Trg 12-16, Belgrade 11001, SerbiaDepartment of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, Weinberg 3, Halle (Saale) 06120, GermanyA novel gold(III) complex, [AuCl2{(S,S)-Et2eddl}]PF6, ((S,S)-Et2eddl = O,O′-diethyl ester of ethylenediamine-N,N′-di-2-(4-methyl)pentanoic acid) was synthesized and characterized by IR, 1D (1H and 13C), and 2D (H,H-COSY and H,H-NOESY) NMR spectroscopy, mass spectrometry, and elemental analysis. Density functional theory calculations confirmed that (R,R)-N,N′ diastereoisomer was energetically the most stable isomer. In vitro antitumor action of ligand precursor [(S,S)-H2Et2eddl]Cl2 and corresponding gold(III) complex was determined against tumor cell lines: human adenocarcinoma (HeLa), human colon carcinoma (LS174), human breast cancer (MCF7), non-small cell lung carcinoma cell line (A549), and non-cancerous cell line human embryonic lung fibroblast (MRC-5) using microculture tetrazolium test (MTT) assay. The results indicate that both ligand precursor and gold(III) complex have showed very good to moderate cytotoxic activity against all tested malignant cell lines. The highest activity was expressed by [AuCl2{(S,S)-Et2eddl}]PF6 against the LS174 cells, with IC50 value of 7.4 ± 1.2 µM.http://www.mdpi.com/2075-4701/6/9/226gold(III) complexR2edda-type ligandDFTcytotoxicity
collection DOAJ
language English
format Article
sources DOAJ
author Nebojša Pantelić
Bojana B. Zmejkovski
Dragana D. Marković
Jelena M. Vujić
Tatjana P. Stanojković
Tibor J. Sabo
Goran N. Kaluđerović
spellingShingle Nebojša Pantelić
Bojana B. Zmejkovski
Dragana D. Marković
Jelena M. Vujić
Tatjana P. Stanojković
Tibor J. Sabo
Goran N. Kaluđerović
Synthesis, Characterization, and Cytotoxicity of a Novel Gold(III) Complex with O,O′-Diethyl Ester of Ethylenediamine-N,N′-Di-2-(4-Methyl)Pentanoic Acid
Metals
gold(III) complex
R2edda-type ligand
DFT
cytotoxicity
author_facet Nebojša Pantelić
Bojana B. Zmejkovski
Dragana D. Marković
Jelena M. Vujić
Tatjana P. Stanojković
Tibor J. Sabo
Goran N. Kaluđerović
author_sort Nebojša Pantelić
title Synthesis, Characterization, and Cytotoxicity of a Novel Gold(III) Complex with O,O′-Diethyl Ester of Ethylenediamine-N,N′-Di-2-(4-Methyl)Pentanoic Acid
title_short Synthesis, Characterization, and Cytotoxicity of a Novel Gold(III) Complex with O,O′-Diethyl Ester of Ethylenediamine-N,N′-Di-2-(4-Methyl)Pentanoic Acid
title_full Synthesis, Characterization, and Cytotoxicity of a Novel Gold(III) Complex with O,O′-Diethyl Ester of Ethylenediamine-N,N′-Di-2-(4-Methyl)Pentanoic Acid
title_fullStr Synthesis, Characterization, and Cytotoxicity of a Novel Gold(III) Complex with O,O′-Diethyl Ester of Ethylenediamine-N,N′-Di-2-(4-Methyl)Pentanoic Acid
title_full_unstemmed Synthesis, Characterization, and Cytotoxicity of a Novel Gold(III) Complex with O,O′-Diethyl Ester of Ethylenediamine-N,N′-Di-2-(4-Methyl)Pentanoic Acid
title_sort synthesis, characterization, and cytotoxicity of a novel gold(iii) complex with o,o′-diethyl ester of ethylenediamine-n,n′-di-2-(4-methyl)pentanoic acid
publisher MDPI AG
series Metals
issn 2075-4701
publishDate 2016-09-01
description A novel gold(III) complex, [AuCl2{(S,S)-Et2eddl}]PF6, ((S,S)-Et2eddl = O,O′-diethyl ester of ethylenediamine-N,N′-di-2-(4-methyl)pentanoic acid) was synthesized and characterized by IR, 1D (1H and 13C), and 2D (H,H-COSY and H,H-NOESY) NMR spectroscopy, mass spectrometry, and elemental analysis. Density functional theory calculations confirmed that (R,R)-N,N′ diastereoisomer was energetically the most stable isomer. In vitro antitumor action of ligand precursor [(S,S)-H2Et2eddl]Cl2 and corresponding gold(III) complex was determined against tumor cell lines: human adenocarcinoma (HeLa), human colon carcinoma (LS174), human breast cancer (MCF7), non-small cell lung carcinoma cell line (A549), and non-cancerous cell line human embryonic lung fibroblast (MRC-5) using microculture tetrazolium test (MTT) assay. The results indicate that both ligand precursor and gold(III) complex have showed very good to moderate cytotoxic activity against all tested malignant cell lines. The highest activity was expressed by [AuCl2{(S,S)-Et2eddl}]PF6 against the LS174 cells, with IC50 value of 7.4 ± 1.2 µM.
topic gold(III) complex
R2edda-type ligand
DFT
cytotoxicity
url http://www.mdpi.com/2075-4701/6/9/226
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