Conformational Properties and Putative Bioactive Targets for Novel Thiosemicarbazone Derivatives

The structure assignment and conformational analysis of the thiosemicarbazones, <b>DKI21</b> and <b>DKI24</b>, were performed through homonuclear and heteronuclear 2D Nuclear Magnetic Resonance (NMR) spectroscopy (2D-COSY, 2D-NOESY, 2D-ROESY, 2D-HSQC, and 2D-HMBC) and quantum...

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Main Authors: Nikitas Georgiou, Antigoni Cheilari, Danai Karta, Eleni Chontzopoulou, Janez Plavec, Demeter Tzeli, Stamatia Vassiliou, Thomas Mavromoustakos
Format: Article
Language:English
Published: MDPI AG 2022-07-01
Series:Molecules
Subjects:
Online Access:https://www.mdpi.com/1420-3049/27/14/4548
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author Nikitas Georgiou
Antigoni Cheilari
Danai Karta
Eleni Chontzopoulou
Janez Plavec
Demeter Tzeli
Stamatia Vassiliou
Thomas Mavromoustakos
author_facet Nikitas Georgiou
Antigoni Cheilari
Danai Karta
Eleni Chontzopoulou
Janez Plavec
Demeter Tzeli
Stamatia Vassiliou
Thomas Mavromoustakos
author_sort Nikitas Georgiou
collection DOAJ
description The structure assignment and conformational analysis of the thiosemicarbazones, <b>DKI21</b> and <b>DKI24</b>, were performed through homonuclear and heteronuclear 2D Nuclear Magnetic Resonance (NMR) spectroscopy (2D-COSY, 2D-NOESY, 2D-ROESY, 2D-HSQC, and 2D-HMBC) and quantum mechanics (QM) calculations, using Functional Density Theory (DFT). In addition, utilizing a combination of 2D-NOESY and 2D-ROESY spectra an <i>exo</i> structure was established for both of the analogs. This experimental results were confirmed by theoretical mechanistic studies, as the lowest minima conformations derived through DFT calculations were compatible with the spatial correlations observed in the 2D-NOESY and 2D-ROESY spectra. Finally, molecular binding experiments were performed to detect the potential targets for <b>DKI21</b> and <b>DKI24</b>, derived from SwissAdme. <i>In silico</i> molecular binding experiments showed favorable binding energy values for the most of the enzymes studied. The ADMET calculations, using the preADMET and pKCSm software, showed that the two molecules appear as possible drug leads.
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spelling doaj.art-fef110b662d04d32bd1538cb9bff566a2023-11-30T21:34:09ZengMDPI AGMolecules1420-30492022-07-012714454810.3390/molecules27144548Conformational Properties and Putative Bioactive Targets for Novel Thiosemicarbazone DerivativesNikitas Georgiou0Antigoni Cheilari1Danai Karta2Eleni Chontzopoulou3Janez Plavec4Demeter Tzeli5Stamatia Vassiliou6Thomas Mavromoustakos7Laboratory of Organic Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimioupolis Zografou, 11571 Athens, GreeceDepartment of Pharmacognosy and Natural Products Chemistry, Faculty of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, GreeceLaboratory of Organic Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimioupolis Zografou, 11571 Athens, GreeceLaboratory of Organic Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimioupolis Zografou, 11571 Athens, GreeceSlovenian NMR Centre, National Institute of Chemistry, SI-1001 Ljubljana, SloveniaLaboratory of Physical Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimioupolis Zografou, 11571 Athens, GreeceLaboratory of Organic Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimioupolis Zografou, 11571 Athens, GreeceLaboratory of Organic Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimioupolis Zografou, 11571 Athens, GreeceThe structure assignment and conformational analysis of the thiosemicarbazones, <b>DKI21</b> and <b>DKI24</b>, were performed through homonuclear and heteronuclear 2D Nuclear Magnetic Resonance (NMR) spectroscopy (2D-COSY, 2D-NOESY, 2D-ROESY, 2D-HSQC, and 2D-HMBC) and quantum mechanics (QM) calculations, using Functional Density Theory (DFT). In addition, utilizing a combination of 2D-NOESY and 2D-ROESY spectra an <i>exo</i> structure was established for both of the analogs. This experimental results were confirmed by theoretical mechanistic studies, as the lowest minima conformations derived through DFT calculations were compatible with the spatial correlations observed in the 2D-NOESY and 2D-ROESY spectra. Finally, molecular binding experiments were performed to detect the potential targets for <b>DKI21</b> and <b>DKI24</b>, derived from SwissAdme. <i>In silico</i> molecular binding experiments showed favorable binding energy values for the most of the enzymes studied. The ADMET calculations, using the preADMET and pKCSm software, showed that the two molecules appear as possible drug leads.https://www.mdpi.com/1420-3049/27/14/4548thiosemicarbazonesNMR spectroscopyquantum mechanicsmolecular bindingDFT
spellingShingle Nikitas Georgiou
Antigoni Cheilari
Danai Karta
Eleni Chontzopoulou
Janez Plavec
Demeter Tzeli
Stamatia Vassiliou
Thomas Mavromoustakos
Conformational Properties and Putative Bioactive Targets for Novel Thiosemicarbazone Derivatives
Molecules
thiosemicarbazones
NMR spectroscopy
quantum mechanics
molecular binding
DFT
title Conformational Properties and Putative Bioactive Targets for Novel Thiosemicarbazone Derivatives
title_full Conformational Properties and Putative Bioactive Targets for Novel Thiosemicarbazone Derivatives
title_fullStr Conformational Properties and Putative Bioactive Targets for Novel Thiosemicarbazone Derivatives
title_full_unstemmed Conformational Properties and Putative Bioactive Targets for Novel Thiosemicarbazone Derivatives
title_short Conformational Properties and Putative Bioactive Targets for Novel Thiosemicarbazone Derivatives
title_sort conformational properties and putative bioactive targets for novel thiosemicarbazone derivatives
topic thiosemicarbazones
NMR spectroscopy
quantum mechanics
molecular binding
DFT
url https://www.mdpi.com/1420-3049/27/14/4548
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