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Bheemayya L, Kamble RR, Shettar AK, Metre TV, Kodasi B, Sannaikar MS, Inamdar SR, M MPK, Hoskeri JH. Design and Synthesis of Novel Fluorescent 2-(aryloxy)-3-(4,5-diaryl)-1H-imidazol-2-yl)quinolines: Solvatochromic, DFT, TD-DFT Studies, COX-1 and COX-2 Inhibition and Antioxidant Properties. J Fluoresc 2023:10.1007/s10895-023-03418-6. [PMID: 37733111 DOI: 10.1007/s10895-023-03418-6] [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: 07/24/2023] [Accepted: 08/24/2023] [Indexed: 09/22/2023]
Abstract
The present work focuses on the synthesis of novel heterocycles 2-(aryloxy)-3-(4,5-diaryl-1H-imidazol-2-yl)quinolines (6k-v) by an effective condensation reaction. These molecules exhibited fluorescent properties and hence for the proper understanding of their optical behavior and quantum yields, solvatochromic studies have been carried out. Further, frontier molecular orbitals, molecular electrostatic potential (MEP), and geometrical structure optimization have been investigated using the B3LYP/6-311G ++ (d, p) method. The energy gap between the HOMO, LUMO of the optical and energy band gap is determined by DFT and UV-visible spectra for TD-DFT studies are done. The screening of these compounds for in vitro COX-1 and COX-2 inhibition and DPPH free radical scavenging ability assays produced promising results. The binding interactions of these molecules against the COX-2 enzyme (PDB: 5IKR) were validated by docking studies.
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Affiliation(s)
- Lokesh Bheemayya
- Department of Chemistry, Karnatak University, Dharwad, 580003, India
| | - Ravindra R Kamble
- Department of Chemistry, Karnatak University, Dharwad, 580003, India.
| | - Arun K Shettar
- Department of Preclinical Research and Drug Development, Cytxon Biosolutions Pvt Ltd, Hubli, 580031, India
| | - Tukaram V Metre
- Department of Chemistry, Karnatak University, Dharwad, 580003, India
| | - Barnabas Kodasi
- Department of Chemistry, Karnatak University, Dharwad, 580003, India
| | | | - Sanjeev R Inamdar
- Department of Studies in Physics, Karnatak University, Dharwad, 580003, India
| | - Mussuvir Pasha K M
- Department of Chemistry, Karnatak Science College, Dharwad, 580 003, India
| | - Joy H Hoskeri
- Department of Bioinformatics and Biotechnology, Karnataka State Akkamahadevi Women's University, Vijayapura, 586108, India
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Celik S. DFT investigations and molecular docking as potent inhibitors of SARS-CoV-2 main protease of 4-phenylpyrimidine. J Mol Struct 2023; 1277:134895. [PMID: 36619799 PMCID: PMC9803264 DOI: 10.1016/j.molstruc.2022.134895] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 12/24/2022] [Accepted: 12/30/2022] [Indexed: 12/31/2022]
Abstract
In this work, quantum chemical descriptors and a vibrational analysis of 4-Phenylpyrimidine (4-PPy) were also investigated. Through conformational analysis, the most stable conformer can be determined. The geometry of the molecular structure was optimized by using the density functional theory (DFT) at the B3LYP/6-311++G(d,p) level. The theoretically obtained FT-IR and FT-Raman spectral data agree with the experimental results. UV-Vis was done in the gas phase along with different solvents by the TD-DFT method and the PCM solvent model. Molecular electrostatic potential, natural bond orbital analysis, nonlinear optical properties, and global chemical reactivity parameters were described through the DFT method. Besides, the chemical implications of a molecule were explained using an electron localization function and a local orbital locator. We attempted to detect the antiviral activity of the 4-PPy compound by predicting molecular docking into coronavirus 2 (SARS-n-CoV-2) protein structures (6LU7, 6M03, and 6W63), because COVID-19 is known to have serious adverse effects in all areas of human life worldwide, and possible drugs need to be investigated for this. The results of the docking simulation demonstrate good affinities for binding to the receptors.
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Affiliation(s)
- Sibel Celik
- Vocational School of Health Services, Ahi Evran University, Kırşehir 40200, Turkey
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Çelik S, Tanış E. Toxic potential of Poly-hexamethylene biguanide hydrochloride (PHMB): A DFT, AIM and NCI analysis study with solvent effects. COMPUT THEOR CHEM 2022. [DOI: 10.1016/j.comptc.2022.113709] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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