1
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Elamin MR, Yousef TA, Elzupir AO. Insight into Tyrosine-Containing Pharmaceuticals as Potential Inhibitors of SARS-CoV-2 3CLpro and NSP16: Structural Analysis, Docking Studies, Molecular Dynamics Simulations, and Density Functional Theory Investigations. CHEMISTRY 2023. [DOI: 10.3390/chemistry5020054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023] Open
Abstract
Tyrosine-containing pharmaceuticals’ (TPh) potential to inhibit SARS CoV-2 3-chymotrypsin-like proteases (3CLpro) and nonstructural protein 16 (NSP16) has been explored using docking studies, molecular dynamics simulations, and density functional theory. The TPh with FDA approval showed excellent contact with the active site pockets of 3CLpro and NSP16. Their binding affinity scores ranged from −5.8 to −4.9 kcal/mol and −6.3 to −4.8 for 3CLpro and NSP16, respectively. A 100-ns molecular dynamics simulation confirmed the stability of the carbidopa/NSP16 complex and N-acetyl tyrosine with both target enzymes. Further, the HOMO-LUMO transitions, molecular orbitals, and dipole moments of carbidopa, droxidopa, and N-acetyl tyrosine were computed using density functional theory (DFT). Considering N-acetyl tyrosine and carbidopa’s substantial inhibitory activity, it is recommended to investigate them further in order to explore their application for the treatment of COVID-19 or any other coronaviruses in the future.
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Affiliation(s)
- Mohamed R. Elamin
- Chemistry Department, Science College, Imam Mohammad Ibn Saud Islamic University, P.O. Box 90905, Riyadh 11623, Saudi Arabia
| | - Tarek A. Yousef
- Chemistry Department, Science College, Imam Mohammad Ibn Saud Islamic University, P.O. Box 90905, Riyadh 11623, Saudi Arabia
- Department of Toxic and Narcotic Drug, Forensic Medicine, Mansoura Laboratory, Medicolegal Organization, Ministry of Justice, Cairo 11435, Egypt
| | - Amin O. Elzupir
- Chemistry Department, Science College, Imam Mohammad Ibn Saud Islamic University, P.O. Box 90905, Riyadh 11623, Saudi Arabia
- Deanship of Scientific Research, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), P.O. Box 90905, Riyadh 11623, Saudi Arabia
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2
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Mahmoud NF, Omar NR, Mohamed GG, Sayed FN. Synthesis, structural characterization and in vitro antibacterial activity studies of ternary metal complexes of anti-inflammatory bromhexine drug. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.110216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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3
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Hassan EA, Ebrahium MM, Ebrahium AM. Metal complexes of hydrazone‐oxime derivative as promising in‐vitro antimicrobial agents against some fungal and bacterial strains. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6663] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Essam A. Hassan
- Department of Biology, college of Science and Arts at Khulais University of Jeddah Jeddah Saudi Arabia
| | - Mohamad M. Ebrahium
- Department of Chemistry, college of Science and Arts at Khulais University of Jeddah Jeddah Saudi Arabia
| | - Adel M. Ebrahium
- Department of Chemistry, Faculty of Science Menoufia University Shebin El‐Kom Egypt
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4
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Ru3+, Mn2+, Co2+, Ni2+, Cu2+, and Zn2+ uni-metallic complexes of 3-(-(1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl) methylene) hydrazono)indolin-2-one, preparation, structure elucidation and antibacterial activity. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.131194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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5
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Shakdofa MME, Saleem QM, Shakdofa AME. Structure investigation, density functional theory, and biostudy of synthesized dihydrazone incorporating isatin moiety and its homo‐bimetallic complexes. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Mohamad M. E. Shakdofa
- Department of Chemistry, College of Science and Arts at Khulais University of Jeddah Jeddah Saudi Arabia
| | - Qaid M. Saleem
- Department of Chemistry, College of Science and Arts at Khulais University of Jeddah Jeddah Saudi Arabia
| | - Adel M. E. Shakdofa
- Department of Chemistry, Faculty of Science Menoufia University Shebin El‐Kom Egypt
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6
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Shakdofa MM, Morsy NA, Rasras AJ, Al‐Hakimi AN, Shakdofa AM. Synthesis, characterization, and density functional theory studies of hydrazone–oxime ligand derived from 2,4,6‐trichlorophenyl hydrazine and its metal complexes searching for new antimicrobial drugs. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.6111] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Mohamad M.E. Shakdofa
- Department of Chemistry, College of Science and Arts at Khulais University of Jeddah Jeddah Saudi Arabia
| | - Nagy A. Morsy
- Department of Biochemistry, College of Science University of Jeddah Jeddah Saudi Arabia
| | - Anas J. Rasras
- Department of Chemistry, Faculty of Science Al‐Balqa Applied University Al‐Salt 19117 Jordan
| | - Ahmed N. Al‐Hakimi
- Department of Chemistry, College of Science Qassim University Buraidah Saudi Arabia
- Department of Chemistry, Faculty of Science Ibb University Ibb Yemen
| | - Adel M.E. Shakdofa
- Department of Chemistry, Faculty of Science Menoufia University Shebin El‐Kom Egypt
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7
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Al‐Janabi AS, Al‐Samra UA, Othman EA, Yousef T. Optical properties, structural, and DFT studies of Pd(II) complexes with 1‐phenyl‐1
H
‐tetrazol‐5‐thiol, X‐ray crystal structure of [Pd(
κ
1
‐
S
‐ptt)
2
(
κ
2
‐dppe)] complex. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5996] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Ahmed S.M. Al‐Janabi
- Department of Biochemistry, College of Veterinary Medicine University of Tikrit Tikrit Iraq
| | | | - Eman A. Othman
- Department of Chemistry, College of Education University of Samara Samarra Iraq
| | - T.A. Yousef
- Department of Chemistry, Science College Imam Mohammad Ibn Saud Islamic University, (IMSIU) Riyadh Saudi Arabia
- Toxic and Narcotic Drug, Forensic Medicine Department, Mansoura Laboratory, Medicolegal Organization Ministry of Justice Cairo Egypt
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8
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Al‐Janabi AS, Kadhim MM, Al‐Nassiry AI, Yousef TA. Antimicrobial, computational, and molecular docking studies of Zn (II) and Pd (II) complexes derived from piperidine dithiocarbamate. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.6108] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Ahmed S.M. Al‐Janabi
- Department of Biochemistry, College of Veterinary Medicine Tikrit University Tikrit Iraq
| | - Mustafa M. Kadhim
- Department of Chemistry, College of Science Wasit University Kut Iraq
- Department of Chemistry, College of Science Baghdad University Baghdad Iraq
| | - Amenah I.A. Al‐Nassiry
- Department of Chemistry, College of Education for Pure Science Tikrit University Tikrit Iraq
| | - Tarek A. Yousef
- Chemistry Department, Science College Imam Mohammad Ibn Saud Islamic University Riyadh Saudi Arabia
- Toxic and Narcotic Drug, Forensic Medicine Department Mansoura Laboratory, Medicolegal Organization, Ministry of Justice Egypt
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9
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Al-Janabi ASM, Elzupir AO, Yousef TA. Synthesis, anti-bacterial evaluation, DFT study and molecular docking as a potential 3-chymotrypsin-like protease (3CLpro) of SARS-CoV-2 inhibitors of a novel Schiff bases. J Mol Struct 2020; 1228:129454. [PMID: 33100378 PMCID: PMC7568132 DOI: 10.1016/j.molstruc.2020.129454] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Revised: 10/03/2020] [Accepted: 10/13/2020] [Indexed: 02/09/2023]
Abstract
New Schiff bases {N'-(phenyl(pyridin-2-yl)methylene) isonicotinohydrazide (L1H), N1 -(naphthalen-1-yl)-N2 -(phenyl(pyridin-2-yl) methylidene) ethane-1,2-diamine (L2H), N-(6-chlorobenzo[d]thiazol-2-yl)-1-phenyl-1-(pyridin-2-yl) methanimine (L3H)}were synthesized by reaction of 2-benzoylpyridine with different amines (2-amino-6-chlorobenzothiazole, isonicotinohydrazide and N 1-(naphthalen-1-yl)ethane-1,2-diamine) and characterized by 1H-NMR, 13C-NMR, IR mass spectroscopy and elemental analysis. The compounds were assayed by the disc diffusion method for anti-bacterial against five pathogenic bacteria species (Staphylococcus aureus, Micrococcus luteus, Staphylococcus pyogenes, Bacillus subtilis, and E. coli). All prepared Schiff bases showed good activity compared to positive control (streptomycin), Moreover the L3H showed the highest activity against S. aureus, and M. luteus than the other compounds and streptomycin. In additional molecular docking studies with 3-chymotrypsin-like protease (3CLpro), the essential enzyme for SARS-CoV-2 proliferation. The rest of compounds have shown promising results as 3CLpro inhibitors interacting with the active sites of the enzymes. Finally, DFT 's estimated electrostatic molecular potential results were used to illustrate the molecular docking findings. The DFT calculations showed that L3H has the highest dipole moment and electrophilicity index. Interestingly, L2H of the largest energy gap ∆E = 2.49 eV, there are several hydrophilic interactions that could facilitate the binding with the receptors. All of these parameters could be shared to significantly affect the protein sites of binding affinity with different extent.
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Affiliation(s)
- Ahmed S M Al-Janabi
- Department of Biochemistry, College of Veterinary Medicine, Tikrit University, Tikrit, Iraq
| | - Amin O Elzupir
- Imam Mohammad Ibn Saud Islamic University (IMSIU), College of Science, Deanship of Scientific Research, Riyadh, KSA
| | - Tarek A Yousef
- Department of Chemistry, Science College, Imam Mohammad Ibn Saud Islamic University, (IMSIU), Riyadh, KSA, P.O. Box 90950, Riyadh 11623, Saudi Arabia.,Toxic and Narcotic drug, Forensic Medicine Department, Mansoura Laboratory, Medicolegal organization, Ministry of Justice, Egypt
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10
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Wang S, Zhang X, Qi F, Huang J, Wei C, Guo Z. Crystal structure analysis of (
E
)‐
N
‐(3,5‐dimethylphenyl)‐2‐(substituted benzylidene)thiosemicarbazone: Experimental and theoretical studies. J PHYS ORG CHEM 2020. [DOI: 10.1002/poc.4138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Sifan Wang
- Shaanxi Key Laboratory of Physico‐Inorganic Chemistry, School of Chemical Engineering Northwest University Xi'an China
| | - Xing Zhang
- Shaanxi Key Laboratory of Physico‐Inorganic Chemistry, School of Chemical Engineering Northwest University Xi'an China
| | - Fan Qi
- Shaanxi Key Laboratory of Physico‐Inorganic Chemistry, School of Chemical Engineering Northwest University Xi'an China
| | - Jie Huang
- Shaanxi Key Laboratory of Physico‐Inorganic Chemistry, School of Chemical Engineering Northwest University Xi'an China
| | - Chenli Wei
- Shaanxi Key Laboratory of Physico‐Inorganic Chemistry, School of Chemical Engineering Northwest University Xi'an China
| | - Zeyu Guo
- Shaanxi Key Laboratory of Physico‐Inorganic Chemistry, School of Chemical Engineering Northwest University Xi'an China
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11
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Eğlence-Bakır S, Şahin M, Salt BZ, Tüzün E, Kara EM, Atun G, Çavuş S, Kızılcıklı İ. Palladium (II) complexes with thione and thioalkylated thiosemicarbazones: Electrochemical, antimicrobial and thermogravimetric investigations. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 237:118358. [PMID: 32361217 DOI: 10.1016/j.saa.2020.118358] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 04/08/2020] [Accepted: 04/09/2020] [Indexed: 06/11/2023]
Abstract
Four methoxy substitute salicylidene thiosemicarbazones were synthesized. The reaction of both thione and thioalkylated thiosemicarbazones with PdCl2 in ethanol yields ONS-coordinated chelate complexes with general formula [Pd(L)Cl]. The structures of eight compounds were characterized by using analytical and spectroscopic methods. Electrochemistry of the Pd(II) complexes was studied using cyclic voltammetric technique. The CVs of the complexes were quite complicate because of some oxidative responses of the ligands which proceed by forming conjugated -N=CH-, -HC=CH- and -N=CH-HC=CH- groups. Two cathodic responses attributed to one electron reduction of Pd(II)/(I) and Pd(I)/(0) were observed for the central ion coordinated with S atom of H3C-S- group whereas only one reduction peak appeared when the Pd(II) coordinated with S atom of >C=S group of thiosemicarbazone ligand. The latter also showed an additional anodic response assigned to Pd(II)/(III) oxidation. Thermogravimetric analysis (TGA) technique was used to investigate and compare the thermal properties of the ligands and their metal complexes. In vitro antimicrobial activity of thiosemicarbazones and their complexes was evaluated against four Gram-negative bacteria, three Gram-positive bacteria, and antifungal activity against three fungi.
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Affiliation(s)
- Songül Eğlence-Bakır
- Faculty of Science, Department of Chemistry, Division of Inorganic Chemistry, Istanbul University, Istanbul, Turkey
| | - Musa Şahin
- Faculty of Science, Department of Chemistry, Division of Inorganic Chemistry, Istanbul University, Istanbul, Turkey.
| | - Betül Zehra Salt
- Faculty of Engineering, Department of Chemistry, Division of Inorganic Chemistry, Istanbul University-Cerrahpaşa, Istanbul, Turkey
| | - Elif Tüzün
- Faculty of Engineering, Department of Chemistry, Division of Physical Chemistry, Istanbul University-Cerrahpaşa, Istanbul, Turkey
| | - Emel Mataracı Kara
- Faculty of Pharmacy, Department of Pharmaceutical Microbiology, Istanbul University, Istanbul, Turkey
| | - Gülten Atun
- Faculty of Engineering, Department of Chemistry, Division of Physical Chemistry, Istanbul University-Cerrahpaşa, Istanbul, Turkey
| | - Selva Çavuş
- Faculty of Engineering, Department of Chemical Engineering, Istanbul University-Cerrahpaşa, Istanbul, Turkey
| | - İrfan Kızılcıklı
- Faculty of Engineering, Department of Chemistry, Division of Inorganic Chemistry, Istanbul University-Cerrahpaşa, Istanbul, Turkey
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12
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Mahmoud NF, Mahmoud WH, Mohamed GG. Synthesis, spectral, MOE and cytotoxic studies of nano Ru (III), Pr (III) and Gd (III) metal complexes with new Schiff base ligand based on dibenzoyl methane and anthranilic acid. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5801] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Nessma F. Mahmoud
- Chemistry Department, Faculty of ScienceCairo University Giza 1213 Egypt
| | - Walaa H. Mahmoud
- Chemistry Department, Faculty of ScienceCairo University Giza 1213 Egypt
- Egypt Nanotechnology CenterCairo University El‐Sheikh Zayed 12588 Egypt
| | - Gehad G. Mohamed
- Chemistry Department, Faculty of ScienceCairo University Giza 1213 Egypt
- Egypt Nanotechnology CenterCairo University El‐Sheikh Zayed 12588 Egypt
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13
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Yousef T, Abu El-Reash G. Synthesis, and biological evaluation of complexes based on thiosemicarbazone ligand. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2019.127180] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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14
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Al‐Janabi ASM, Zaky R, Yousef TA, Nomi BS, Shaaban S. Synthesis, characterization, computational simulation, biological and anticancer evaluation of Pd(II), Pt(II), Zn(II), Cd(II), and Hg(II) complexes with 2‐amino‐4‐phenyl‐5‐selenocyanatothiazol ligand. J CHIN CHEM SOC-TAIP 2020. [DOI: 10.1002/jccs.201900454] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ahmed S. M. Al‐Janabi
- Biochemistry Department, College of Veterinary MedicineTikrit University Tikrit Iraq
| | - Rania Zaky
- Chemistry Department, Faculty of ScienceMansoura University Mansoura Egypt
| | - Tarak A. Yousef
- Chemistry Department, Science CollegeImam Mohammad Ibn Saud Islamic University Riyadh Saudi Arabia
- Toxic, Narcotic Drug and Forensic Medicine Department, Mansoura Laboratory, Medicolegal OrganizationMinistry of Justice Egypt
| | - Bashar S. Nomi
- Microbiology Department, College of Veterinary MedicineTikrit University Tikrit Iraq
| | - Saad Shaaban
- Chemistry Department, Faculty of ScienceMansoura University Mansoura Egypt
- Chemistry Department, College of ScienceKing Faisal University Al‐Hofuf Saudi Arabia
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15
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Rajendran N, Periyasamy A, Kamatchi N, Solomon V. Biological evaluation of copper(II) complexes on N(4)−substituted thiosemicarbazide derivatives and diimine co-ligands using DNA interaction, antibacterial and in vitro cytotoxicity. J COORD CHEM 2019. [DOI: 10.1080/00958972.2019.1634806] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
| | - Abirami Periyasamy
- Department of Biotechnology, Lady Doak College, Madurai, Tamil Nadu, India
| | - Nithya Kamatchi
- Department of Zoology, Lady Doak College, Madurai, Tamil Nadu, India
| | - Vasantha Solomon
- Department of Chemistry, Lady Doak College, Madurai, Tamil Nadu, India
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16
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Mahmoud WH, Mahmoud NF, Mohamed GG. Physicochemical characterization of nanobidentate ferrocene‐based Schiff base ligand and its coordination complexes: Antimicrobial, anticancer, density functional theory, and molecular operating environment studies. J CHIN CHEM SOC-TAIP 2019. [DOI: 10.1002/jccs.201800316] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Walaa H. Mahmoud
- Chemistry Department, Faculty of ScienceCairo University Giza Egypt
| | | | - Gehad G. Mohamed
- Chemistry Department, Faculty of ScienceCairo University Giza Egypt
- Egypt Nanotechnology CenterCairo University Giza Egypt
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17
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Mohapatra RK, Das PK, Pradhan MK, El-Ajaily MM, Das D, Salem HF, Mahanta U, Badhei G, Parhi PK, Maihub AA, -E-Zahan MK. Recent Advances in Urea- and Thiourea-Based Metal Complexes: Biological, Sensor, Optical, and Corroson Inhibition Studies. COMMENT INORG CHEM 2019. [DOI: 10.1080/02603594.2019.1594204] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Ranjan K. Mohapatra
- Department of Chemistry, Government College of Engineering, Keonjhar, Odisha, India
| | - Pradeep K. Das
- Department of Chemistry, N. C. Autonomous College, Jajpur, Odisha, India
| | - Manoj K. Pradhan
- Department of Chemistry, Government College of Engineering, Keonjhar, Odisha, India
| | - Marei M. El-Ajaily
- Chemistry Department, Faculty of Science, Benghazi University, Benghazi, Libya
| | - Debadutta Das
- Department of Chemistry, Sukanti Degree College, Subarnapur, Odisha, India
| | - Halima F. Salem
- Chemistry Department, Faculty of Science, Benghazi University, Benghazi, Libya
| | - Umakanta Mahanta
- Department of Chemistry, B. B. Mahavidyalaya, Harichandanpur, Keonjhar, Odisha, India
| | - Gouranga Badhei
- Department of Chemistry, SKDAV Government Polytechnic, Rourkela, Odisha, India
| | - Pankaj K. Parhi
- School of Chemical Technology, KIIT Deemed to be University, Bhubaneswar, Odisha, India
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18
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El‐Morshedy RM, El‐Gamil MM, Abou‐Elzahab MM, Abu El‐Reash GM. Spectroscopic investigation, DFT, fluorescence, molecular docking and biological studies of divalent and trivalent binuclear complexes prepared from benzoyl thiosemicarbazide derivative of 2‐benzylmalonohydrazide. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.4871] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Reham M. El‐Morshedy
- Department of Chemistry, Faculty of ScienceMansoura University Mansoura, P.O.Box 70 Mansoura Egypt
| | - Mohammed M. El‐Gamil
- Department of Toxic and Narcotic DrugForensic Medicine, Mansoura Laboratory, Medico legal Organization, Ministry of Justice Egypt
| | | | - Gaber M. Abu El‐Reash
- Department of Chemistry, Faculty of ScienceMansoura University Mansoura, P.O.Box 70 Mansoura Egypt
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19
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Mahmoud WH, Mahmoud NF, Mohamed GG. Synthesis, characterization, density functional theory, X-ray study, thermal stability, and biological and MOE relevance of metal complexes of griseofulvin. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4312] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Walaa H. Mahmoud
- Chemistry Department, Faculty of Science; Cairo University; Giza 12613 Egypt
| | - Nessma F. Mahmoud
- Chemistry Department, Faculty of Science; Cairo University; Giza 12613 Egypt
| | - Gehad G. Mohamed
- Chemistry Department, Faculty of Science; Cairo University; Giza 12613 Egypt
- Egypt Nanotechnology Center; Cairo University; El-Sheikh Zayed 12588 Egypt
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20
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Synthesis and Characterization of Cobalt(III) and Copper(II) Complexes of 2-((E)-(6-Fluorobenzo[d]thiazol-2-ylimino) methyl)-4-chlorophenol: DNA Binding and Nuclease Studies—SOD and Antimicrobial Activities. ACTA ACUST UNITED AC 2018. [DOI: 10.1155/2018/8759372] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A bidentate (N- and O-) imine-based ligand (L1) and its metal complexes of types [CuII(L1)2] (C1), [CuII(L1)(Phen)] (C2), [CoIII(L1)2] (C3), and [CoIII(L1)(Phen)] (C4) (L1 = 2-((E)-(6-fluorobenzo[d]thiazol-2-ylimino)methyl)-4-chlorophenol and phen = 1,10-phenanthroline) were synthesized as potential chemotherapeutic drug candidates. The prepared complexes were structurally characterized by spectral techniques (NMR, FT-IR, LC-MS, EPR, and electronic absorption), thermogravimetric analysis (TGA/DTA), magnetic moment, and CHNO elemental analysis. Spectroscopic studies suggested the distorted octahedral structure for all complexes. In vitro bioassay studies include binding and nuclease activities of the ligand and its complexes with target calf thymus- (CT-) DNA were carried out by employing UV-Vis, fluorescence spectroscopy, viscosity, and gel electrophoresis techniques. The extent of binding propensity was determined quantitatively by Kb and Ksv values which revealed a higher binding affinity for C2 and C4 as compared to C1 and C3. In addition, the scavenging superoxide anion free radical (O∙-2) activity of metal complexes was determined by nitroblue tetrazolium (NBT) light reduction assay. Molecular docking studies with DNA and SOD enzyme were also carried out on these compounds. The antimicrobial study has shown that all the compounds are potential antibacterial agents against Gram-negative bacterial strains and better antifungal agents with respect to standard drugs used.
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21
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Yousef T, Abu El-Reash G, El-Gamal O, Sharaa B. Ligational, DFT, optical band gap and biological studies on Mn(II), Co(II) and Ni(II) complexes of ethyl and allyl thiosemicarbazides ending by thiazole group. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2017.12.022] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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22
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Sayin K, Karakaş D. Computational investigations of trans‑platinum(II) oxime complexes used as anticancer drug. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 188:537-546. [PMID: 28759855 DOI: 10.1016/j.saa.2017.07.036] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Revised: 07/11/2017] [Accepted: 07/20/2017] [Indexed: 06/07/2023]
Abstract
Some platinum oxime complexes are optimized at HF/CEP-31G level which has been reported as the best level for these type complexes in the gas phase. IR spectrum is calculated and the new scale factor is derived. NMR spectrum is calculated at the same level of theory and examined in detail. Quantum chemical parameters which have been mainly used are investigated and their formulas are given in detail. Additionally, selected quantum chemical parameters of studied complexes are calculated. New theoretical IC50% formulas are derived and biological activity rankings of mentioned complexes are investigated.
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Affiliation(s)
- Koray Sayin
- Department of Chemistry, Faculty of Science, Cumhuriyet University, Sivas 58140, Turkey12.
| | - Duran Karakaş
- Department of Chemistry, Faculty of Science, Cumhuriyet University, Sivas 58140, Turkey12
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Eğlence S, Şahin M, Özyürek M, Apak R, Ülküseven B. Dioxomolybdenum(VI) complexes of S-methyl-5-bromosalicylidene-N-alkyl substituted thiosemicarbazones: Synthesis, catalase inhibition and antioxidant activities. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2017.10.007] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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Physicochemical properties of novel methyl 2-{(E)-[(2-hydroxynaphthalen-1-yl)methylidene] amino}-4,5,6,7-tetrahydro-1-benzothiophene-3-carboxylate as turn-off fluorometric chemosensor for detection Fe3+ ion. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2017.07.054] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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25
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Comparative Interactions of Dihydroquinazolin Derivatives with Human Serum Albumin Observed via Multiple Spectroscopy. APPLIED SCIENCES-BASEL 2017. [DOI: 10.3390/app7020200] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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