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Verma NL, Kumar S, Kumar M, Pal J, Sharma D, Lalji RSK, Chahal M, Kant H, Rathor N, Javed S, Jaiswar G. Quantum chemical treatment, electronic energy in various solvents, spectroscopic, molecular docking and dynamic simulation studies of 2-amino-N-(2-chloro-6-methylphenyl)thiazole-5-carboxamide: A core of anticancer drug. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2025; 326:125263. [PMID: 39413608 DOI: 10.1016/j.saa.2024.125263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2024] [Revised: 09/30/2024] [Accepted: 10/05/2024] [Indexed: 10/18/2024]
Abstract
The titled molecule 2-Amino-N-(2-chloro-6-methylphenyl)thiazole-5-carboxamide (ANMC) is a core of anticancer drug dasatinib (leukemia). Its derivatives exhibited bioactivity against breast cancer. Experimentally, the titled compound was described using NMR (1H NMR and 13C NMR), FTIR and UV-visible spectroscopy. The results were compared with the theoretical predictions, showing good agreement such as theoretical NH vibrations showed symmetric stretching and asymmetric stretching at 3429 and 3440 cm-1 respectively, λmax values appear at 305 nm for experimental and 307.75 nm for theoretical observations in acetone medium. Hirshfeld surface analysis well described the secondary internal and external interactions obtained like dnorm and di ranges -1.8551 to 1.4590 and 0.0918 to 2.6756 respectively. Comparing UV-visible spectra obtained in various solvents with the calculated TD-DFT results revealed minimal solvent effects. Molecular electrostatic potential (MEP) map and Fukui functions were employed, which indicated reactive sites of the molecule and the obtained order of nucleophilic reactivity was C16 > C2 > C8 > Cl1 > C22 > C21. The bioactivity profile probability of ANMC was theoretically explored by calculation of electrophilicity index and drug-likeness. Molecular docking of the ANMC molecule was performed with ten receptors to obtain the best ligand-protein interaction and the minimum binding energy obtained was -8.0 kcal/mol. Biomolecular stability of ANMC was investigated by Molecular Dynamic Simulation (MDS). And also the analysis of free energies showed strong interactions between the ligand and the protein.
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Affiliation(s)
- Nand Lal Verma
- Department of Chemistry, K. R. (PG) College, Mathura 281001, U.P, India
| | - Shilendra Kumar
- Department of Chemistry, R. B. S College, Agra 282002, U.P, India
| | - Mohit Kumar
- Department of Chemistry, Dr. Bhimrao Ambedkar University, Agra 282002, U.P, India
| | - Jai Pal
- Department of Chemistry, R. B. S College, Agra 282002, U.P, India
| | - Deepa Sharma
- Department of Chemistry, Dr. Bhimrao Ambedkar University, Agra 282002, U.P, India
| | - Ram Sunil Kumar Lalji
- Department of Chemistry, Kirori Mal College, University of Delhi, Delhi 110007, India
| | - Mohit Chahal
- Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Hari Kant
- Department of Chemistry, R. B. S College, Agra 282002, U.P, India
| | - Nisha Rathor
- Department of Chemistry, K. R. (PG) College, Mathura 281001, U.P, India.
| | - Saleem Javed
- Department of Chemistry, Jamia Millia Islamia, New Delhi, Delhi 110025, India.
| | - Gautam Jaiswar
- Department of Chemistry, Dr. Bhimrao Ambedkar University, Agra 282002, U.P, India.
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Alkhatib MBMM, Hussein MTHA, Alfantech MA, Shraim AM, Salih KSM. Spectroscopic and nonlinear optical investigations of biscinnamyl-sulfone derivatives: Computational and experimental insights. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2025; 324:125023. [PMID: 39213832 DOI: 10.1016/j.saa.2024.125023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2024] [Revised: 08/12/2024] [Accepted: 08/20/2024] [Indexed: 09/04/2024]
Abstract
Novel geometrically asymmetric biscinnamyl-sulfone compounds (6a-c) with donor-π-conjugated spacer-acceptor functionality were successfully synthesized. This was achieved by coupling cinnamaldehyde precursors with 3,3'-diaminodiphenyl sulfone in dry organic solvents, resulting in high yields. Several spectroscopic techniques were employed to identify the derivatives. The absorption spectra of these compounds exhibited broad bands that spanned up to 120 nm, which can be attributed to their extended conjugation systems. In order to explore the electronic transitions of these materials, Time-Dependent Density-Functional Theory (TD-DFT) with EIFPCM solvation mode was utilized. We computationally investigated the static nonlinear optical (NLO) parameters, including dipole moments (μ), polarizability (α), anisotropic polarizability (Δα), first-order hyperpolarization (β), and second-order hyperpolarization (γ). Although the new structures possess different functional groups, they displayed similar electronic potentials when their molecular electrostatic potentials were plotted. These potentials are crucial in stabilizing the molecules in crystal systems through noncovalent forces such as C-H⋯π stacking and hydrogen bonding. They also provide insights into the electronic assessments and energetics of these individual forces. By estimating the frontier orbitals, we gained an understanding of the intramolecular charge transfer in the compounds. Energy gap values were determined using the orbitals of density of states method and experimentally via the Tauc method. The computational and experimental results were in good agreement. Lastly, we examined the influence of different protic and aprotic solvents on the absorption bands of compound 6b, as an example. This compound showed a significant bathochromic shift of 41 nm upon changing the solvent from acetic acid to dimethyl sulfoxide.
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Affiliation(s)
- Mohammad B M M Alkhatib
- Department of Chemistry and Earth Sciences, College of Arts and Sciences, Qatar University, P.O. Box 2713, Doha, Qatar
| | - Marawan T H A Hussein
- Department of Chemistry and Earth Sciences, College of Arts and Sciences, Qatar University, P.O. Box 2713, Doha, Qatar
| | - Mohammad A Alfantech
- Department of Chemistry and Earth Sciences, College of Arts and Sciences, Qatar University, P.O. Box 2713, Doha, Qatar
| | - Amjad M Shraim
- Department of Chemistry and Earth Sciences, College of Arts and Sciences, Qatar University, P.O. Box 2713, Doha, Qatar
| | - Kifah S M Salih
- Department of Chemistry and Earth Sciences, College of Arts and Sciences, Qatar University, P.O. Box 2713, Doha, Qatar.
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Chadli R, Zouaoui Rabah M, Khelladi I, Haddou A, Ameri B, Sakkal-Rahal M. Synthesis, spectroscopic characterization techniques of aromatic iminoaniline derived compound, along with the evaluation of its LNO properties using quantum chemistry. Sci Rep 2024; 14:27383. [PMID: 39521827 PMCID: PMC11550439 DOI: 10.1038/s41598-024-75117-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2024] [Accepted: 10/01/2024] [Indexed: 11/16/2024] Open
Abstract
In this research work, we synthesized a Schiff base derivative, N,N-dimethyl-4-{[(4-nitrophenyl)imino]-methyl}aniline, denoted as (n1). The molecule (n1) was characterized using spectroscopic analyses, including FT-IR, NMR 1H, and 13C. Our compound (n1) is an unsaturated molecule, consisting of two benzylic rings connected by a methylimine bridge. The resulting system comprises seven alternating π bonds. At both ends of (n1) and in the para position, there are the N(CH3)2 group with a strong electron-donating effect and the NO2 group with a strong electron-accepting effect. The molecular structure of our compound prompted us to evaluate and study its properties in the field of NLO. The assessment of NLO properties is conducted by determining the Egap and employing density functional theory (DFT) quantum chemistry studies. The optical gap of (n1), measured using the Tauc method, is found to be 2.7 eV, serving as a reference value for the choice of the DFT functional in theoretical calculations. Quantum chemistry studies were carried out using Gaussian09 software, and the results were visualized with GaussView05. CAM-B3lyp functional was chosen for theoretical calculations due to its close agreement with experimental values. The studies confirm that (n1) exhibits significant NLO properties. Additionally, NBO (Natural Bond Orbital) analyses provide insight into the mechanism and trajectory of intramolecular charge transfer in (n1).
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Affiliation(s)
- R Chadli
- Laboratoire de Chimie Physique, Organique et Macromoléculaire, Faculty of Exact Sciences, University Djillali Liabes of Sidi Bel-Abbes, B.P. 89, Sidi Bel Abbès, 22000, Algeria.
- Laboratory of Materials Chemistry Catalysis and Reactivity, Department of Chemistry, Faculty of Exact Sciences and Informatics, Hassiba BenBouali University, Chlef, P.O. Box 78C, Ouled Fares Chlef, 02180, Algeria.
| | - M Zouaoui Rabah
- Laboratory of Materials Chemistry Catalysis and Reactivity, Department of Chemistry, Faculty of Exact Sciences and Informatics, Hassiba BenBouali University, Chlef, P.O. Box 78C, Ouled Fares Chlef, 02180, Algeria
- National Polytechnic School of Oran, Oran, 31000, Algeria
| | - I Khelladi
- Laboratoire de Chimie Théorique de Bio- et Nanosystemes, Faculty of Exact Sciences, University Djillali Liabes of Sidi Bel-Abbes, B.P. 89, Sidi Bel Abbès, 22000, Algeria
| | - A Haddou
- Laboratoire de Chimie Théorique de Bio- et Nanosystemes, Faculty of Exact Sciences, University Djillali Liabes of Sidi Bel-Abbes, B.P. 89, Sidi Bel Abbès, 22000, Algeria
| | - B Ameri
- Laboratoire de Physico-Chimie des Matériaux Avancés, Faculty of Exact Sciences, University Djillali Liabes of Sidi Bel-Abbes, B.P. 89, Sidi Bel Abbès, 22000, Algeria
| | - M Sakkal-Rahal
- Laboratoire de Chimie Théorique de Bio- et Nanosystemes, Faculty of Exact Sciences, University Djillali Liabes of Sidi Bel-Abbes, B.P. 89, Sidi Bel Abbès, 22000, Algeria
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Gökçimen SŞ, İpek Y, Behçet L, Demirtaş İ, Özen T. Isolation, characterization and evaluation of oxypeucedanin and osthol from local endemic Prangos aricakensis Behçet and Yapar root as antioxidant, enzyme inhibitory, antibacterial and DNA protection: molecular docking and DFT approaches. J Biomol Struct Dyn 2024:1-18. [PMID: 38214506 DOI: 10.1080/07391102.2024.2303387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Accepted: 01/03/2024] [Indexed: 01/13/2024]
Abstract
Prangos species were previously used against many disorders due to their chemical component. Prangos aricakensis Behçet & Yapar is a newly discovered local endemic species in Turkey's eastern region, and there is no research on P. aricakensis in the literature. In this work, oxypeucedanin and osthol molecules have been isolated from the root part of P. aricakensis for the first time. Oxypeucedanin and osthol structures were elucidated by 1D and 2D NMR analysis. For the bioactivities determination, antioxidant (DPPH· and ABTS·+ scavenging), enzyme inhibition (AChE, BChE, tyrosinase, and urease), antibacterial and DNA protection activity studies were applied for both molecules and compared with standard drug molecules, after applying enzyme kinetic assays and in silico approaches to clarify the mechanism of action for both molecules with enzymes, using molecular docking and density functional theory (DFT). Oxypeucedanin (2.19 ± 0.38 µg/mL) and osthol (4.57 ± 1.28 µg/mL) exhibited better activity than standards in DPPH∙ scavenging activity. Osthol (11.76 ± 0.59 µg/mL) showed a better tyrosinase inhibition effect than kojic acid (12.82 ± 0.91 µg/mL), and oxypeucedanin (3.03 ± 0.01 µg/mL) showed better urease inhibition effect than thiourea (5.37 ± 1.86 µg/mL). Our results showed that the osthol molecule was an excellent skin protective agent while the oxypeucedanin molecule could be a remarkable antiulcer agent. Therefore, although this study is the first in its field, it remained in the in vitro and in silico stages and is thought to pave the way for in vivo studies in the future.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Serbay Şafak Gökçimen
- Faculty of Science, Department of Chemistry, Kurupelit Campus, Ondokuz Mayıs University, Samsun, Turkey
| | - Yaşar İpek
- Faculty of Science, Department of Chemistry, Uluyazı Campus, Çankırı Karatekin University, Çankırı, Turkey
| | - Lütfi Behçet
- Faculty of Arts and Sciences, Department of Molecular Biology and Genetics, Bingöl University, Bingöl, Turkey
| | - İbrahim Demirtaş
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Ondokuz Mayıs University, Samsun, Turkey
- Research Laboratories Application and Research Center (ALUM), Igdir University, Iğdır, Turkiye
| | - Tevfik Özen
- Faculty of Science, Department of Chemistry, Kurupelit Campus, Ondokuz Mayıs University, Samsun, Turkey
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Al-Ejli MO, Eribi A, Alahzm AM, Salih KS. Synthesis, structural elucidation and optical activity of symmetric Schiff base-functionalized ferrocenes: Synergetic experimental and DFT insights. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2023.135052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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Teka S, Hajji M, Jebnouni A, Messaoudi O, Mansour D, Guerfel T. Non-covalent assembly of β-iminoamine-chlorocobaltate(II) hybrid material: Molecular structure, computational simulations and antimicrobial activity. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131967] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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Salih KSM. Solvent Influence on Absorption Spectra and Tautomeric Equilibria of Symmetric Azomethine-Functionalized Derivatives: Structural Elucidation and Computational Studies. ChemistryOpen 2022; 11:e202100237. [PMID: 35191603 PMCID: PMC8862155 DOI: 10.1002/open.202100237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 12/13/2021] [Indexed: 11/24/2022] Open
Abstract
A new series of azomethine-functionalized compounds was synthesized from the condensation of 2-hydroxy-1,3-propanediamine and 2-thienylcarboxaldehydes in the presence of a drying agent. The derivatives were spectroscopically characterized by NMR, LC-MS, UV/Vis, IR and elemental analysis. Variable temperature 1 H-NMR (-60 to +60 °C) was performed to investigate the effect of solvent polarity; the capability of solvent to form H-bond was found to dramatically influencing the tautomerization process of the desired structures. The calculated thermochemical parameters (ΔH298 , ΔG298 and ΔS298 ) at DFT and MP2 levels of theory explained that 3 b exists in equilibrium with two tautomers. The basis of the electronic absorptions was pursued through Time-Dependent Density-Functional Theory (TD-DFT). Analysis of the structural surfaces was inspected and the molecular electrostatic potential (MEP) demonstrated that the three functionalized compounds were relatively analogous in the electronic distributions. Furthermore, the electrophilic and nucleophilic centers lying on the molecular surfaces were probably playing a key-role in stabilizing the compounds through the nonclassical C-H⋅⋅⋅π interactions and hydrogen bonding. The impact of solvent polarity on absorption spectra were investigated via solvatochromic shifts. For instance, compound 3 c displayed a gradual shift of the maximum absorption to the red area when the solvent polarity was increased, recording a 21 nm of bathochromic shift. In contrast, no significant solvent-effect on 3 a and 3 b was observed. The solvation relation was pursued between Gutmann's donicity numbers the experimental λmax ; exhibited almost positive linear performance with a minor oscillation, that ascribe to the possible weak interface between the molecules of solute and designated solvents. The bandgap energy of all products were assessed experimentally using optical absorption spectra following Tauc approach, giving -4.050 (3 a), -3.900 (3 b) and -3.210 (3 c) eV. However, the ΔE were computationally figured out from TD-DFT simulation to be -4.258 (3 a), -4.022 (3 b) and -3.390 (3 c) eV.
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Affiliation(s)
- Kifah S. M. Salih
- Department of Chemistry and Earth SciencesCollege of Arts and SciencesQatar UniversityP. O. Box 2713DohaState of Qatar
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