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Navaneetha T, Ali A, Ramana CV, Baskar V. Discrete Molecular Aggregates Based on Zn II and Sb III/V Ions Displaying Efficient Antibacterial and Antioxidant Properties. Inorg Chem 2023; 62:5237-5247. [PMID: 36943193 DOI: 10.1021/acs.inorgchem.3c00247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/23/2023]
Abstract
The reactions of [Zn3Cl2(3,5-Me2PzH)4(t-BuPO3)2] with organostibonic acid in varying reaction conditions have been investigated. Single-crystal X-ray diffraction studies reveal the formation of [Zn2(p-ClC6H4Sb)2(O)2(OCH3)2(t-BuPO3)3(py)2] (1), [Zn2(p-ClC6H4SbV)4(SbIII)2(O)8(t-BuPO3H)4(t-BuPO3)2(py)2Cl2] (2), and [Zn2(RSb)4(O)4(OCH3)4(t-BuPO3)4(py)2], where R = p-ClC6H4 (3) and R = p-iPrC6H4 (4), respectively. Interestingly, in the synthesis of 2, complete dearylation of organoantimony moieties followed by C-F bond formation, a reduction from Sb (V) to Sb (III), and Sb···Cl weak intermolecular interactions have been observed. ESI-MS studies suggested that clusters 1-4 maintained their structural integrity in the solution state also. Solution NMR studies (1H, 31P, and 13C) support well the observed solid-state structures. 1-4 were tested for antibacterial activity using a microdilution assay. 1 and 4 showed the best activity with lower MIC values (0.78-6.25 μg/mL) against all the tested pathogens. The total antioxidant activity of 1-4 was evaluated through the phosphomolybdenum assay, which showed a total antioxidant activity ranging from 28.96 to 86.46 mg AAE/g compound with the ascorbic acid standard.
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Affiliation(s)
- Tokala Navaneetha
- School of Chemistry, University of Hyderabad, Hyderabad 500046, Telangana, India
| | - Ashif Ali
- Department of Plant Sciences, School of Life Sciences, University of Hyderabad, Hyderabad 500046, Telangana, India
| | - Ch Venkata Ramana
- Department of Plant Sciences, School of Life Sciences, University of Hyderabad, Hyderabad 500046, Telangana, India
| | - Viswanathan Baskar
- School of Chemistry, University of Hyderabad, Hyderabad 500046, Telangana, India
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Ali J, Mubarak MM, Samuel C, Kantroo HA, Malik A, Ahmad Z, Baskar V. Stibonic acids and related stibonate-phosphonate clusters: Synthesis, characterization and bioactivity evaluation. J Inorg Biochem 2022; 235:111909. [PMID: 35810526 DOI: 10.1016/j.jinorgbio.2022.111909] [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: 04/01/2022] [Revised: 06/18/2022] [Accepted: 06/23/2022] [Indexed: 11/28/2022]
Abstract
The reaction of 4-(azobenzene)phenylstibonic acid with t-butylphosphonic acid led to the isolation of the tetranuclear oxo-hydroxo antimony cluster of formulae [(4-azobenzene-C6H4Sb)4(OH)4(tBuPO3)6] (C1). The reaction of (p-t-butyl phenyl stibonic acid with phenyl phosphonic acid resulted in the isolation of complex with formulae [(p-t-BuC6H4Sb)4(O)2(PhPO3)4(PhPO3H)4] (C2). Based upon the initial results from docking studies, parent stibonic acids, t-butyl-phenylstibonic acid, p-isopropylphenylstibonic acid, 4-azobenzenephenylstibonic acid, and the derived tetranuclear organoantimonate-phosphonate clusters were screened against different cancer cell lines, various Gram-positive and Gram-Negative bacteria and mycobacteria for possible bioactivity profile.
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Affiliation(s)
- Junaid Ali
- School of Chemistry, University of Hyderabad, Hyderabad 500 046, India
| | - Mohamad Mosa Mubarak
- Clinical Microbiology and PK-PD División, CSIR-IIIM, Sanatnagar, Srinagar, Jammu and Kashmir, India; Academy of Scientific & Innovative Research (AcSIR), Anusandhan Bhawan, 2 Rafi Marg, New Delhi 110001, India
| | - Calvin Samuel
- School of Chemistry, University of Hyderabad, Hyderabad 500 046, India
| | - Hadiya Amin Kantroo
- Clinical Microbiology and PK-PD División, CSIR-IIIM, Sanatnagar, Srinagar, Jammu and Kashmir, India
| | - Abbass Malik
- Clinical Microbiology and PK-PD División, CSIR-IIIM, Sanatnagar, Srinagar, Jammu and Kashmir, India
| | - Zahoor Ahmad
- Clinical Microbiology and PK-PD División, CSIR-IIIM, Sanatnagar, Srinagar, Jammu and Kashmir, India; Academy of Scientific & Innovative Research (AcSIR), Anusandhan Bhawan, 2 Rafi Marg, New Delhi 110001, India.
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Gubanova YO, Sharutin VV, Sharutina OK. Features of the Pentaphenylantimony Reaction with 3-Hydroxybenzoic and Benzene-1,2,4,5-Tetracarboxylic Acids. RUSS J GEN CHEM+ 2021. [DOI: 10.1134/s1070363220120166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Sharutin VV, Poddel’sky AI, Sharutina OK. Aryl Compounds of Pentavalent Antimony: Syntheses, Reactions, and Structures. RUSS J COORD CHEM+ 2020. [DOI: 10.1134/s1070328420100012] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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Ugandhar U, Navaneetha T, Ali J, Mondal S, Vaitheeswaran G, Baskar V. Assembling Homometallic Sb 6 and Heterometallic Ti 4Sb 2 Oxo Clusters. Inorg Chem 2020; 59:6689-6696. [PMID: 32343568 DOI: 10.1021/acs.inorgchem.9b03238] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Isolation and structural characterization of novel organoantimony(V)-based oxo clusters are reported. (RSb)4(OH)4(t-BuPO3)6 and (RSb)2(O)(t-BuPO3H)6 independently in the presence of pyridine under solvothermal conditions afford the hexanuclear organoantimonate clusters [(RSb)6(μ3-O)2(μ2-O)6(t-BuPO3)4], where R = p-i-PrC6H4 (1), p-ClC6H4 (2). Further, reaction of organostibonate phosphonate with Ti(OiPr)4 in the presence of pyridine under solvothermal conditions afforded the mixed-metal titanium stibonate hexanuclear clusters [(RSb)2Ti4(μ3-O)2(μ2-O)2(t-BuPO3)4(μ-OCH3)4(OCH3)4], where R = p-i-PrC6H4 (3), p-ClC6H4 (4). Band gap measurements were performed on 1-4. They reveal a remarkable reduction in the band gap on moving from the heavier main-group-based oxo cages (1 and 2) to the titanium-incorporated oxo cages (3 and 4).
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Affiliation(s)
- Uppara Ugandhar
- School of Chemistry, University of Hyderabad, Hyderabad 500046, Telangana, India
| | - Tokala Navaneetha
- School of Chemistry, University of Hyderabad, Hyderabad 500046, Telangana, India
| | - Junaid Ali
- School of Chemistry, University of Hyderabad, Hyderabad 500046, Telangana, India
| | - Subrata Mondal
- Advanced Centre of Research in High Energy Materials(ACRHEM), University of Hyderabad, Hyderabad 500046, Telangana, India
| | | | - Viswanathan Baskar
- School of Chemistry, University of Hyderabad, Hyderabad 500046, Telangana, India
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Obieziurska M, Pacuła AJ, Laskowska A, Długosz-Pokorska A, Janecka A, Ścianowski J. Seleninic Acid Potassium Salts as Water-Soluble Biocatalysts with Enhanced Bioavailability. MATERIALS 2020; 13:ma13030661. [PMID: 32024274 PMCID: PMC7040810 DOI: 10.3390/ma13030661] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 01/16/2020] [Accepted: 01/31/2020] [Indexed: 11/24/2022]
Abstract
Organoselenium compounds are well-known glutathione peroxidase (GPx) mimetics that possess antioxidants/prooxidant properties and are able to modulate the concentration of reactive oxygen species (ROS), preventing oxidative stress in normal cells or inducing ROS formation in cancer cells leading to apoptosis. The purpose of this study was the synthesis of potent GPx mimics with antioxidant and anticancer activity along with improved bioavailability, as a result of good solubility in protic solvents. As a result of our research, glutathione peroxidase (GPx) mimetics in the form of water-soluble benzeneseleninic acid salts were obtained. The procedure was based on the synthesis of 2-(N-alkylcarboxyamido)benzeneselenenic acids, through the oxidation of benzisoselenazol-3(2H)-ones or analogous arenediselenides with an amido group, which were further converted to corresponding potassium salts by the treatment with potassium tert-butanolate. All derivatives were tested as potential antioxidants and anticancer agents. The areneseleninic acid salts were significantly better peroxide scavengers than analogous acids and the well-known organoselenium antioxidant ebselen. The highest activity was observed for the 2-(N-ethylcarboxyamido)benzeneselenenic acid potassium salt. The strongest cytotoxic effect against breast cancer (MCF-7) and human promyelocytic leukemia (HL-60) cell lines was found for 2-(N-cyclohexylcarboxyamido)benzeneselenenic acid potassium salt and the 2-(N-ethylcarboxyamido)benzeneselenenic acid, respectively. The structure–activity correlations, including the differences in reactivity of benzeneseleninic acids and corresponding salts were evaluated.
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Affiliation(s)
- Magdalena Obieziurska
- Department of Organic Chemistry, Faculty of Chemistry, Nicolaus Copernicus University, 7 Gagarin Street, 87-100 Torun, Poland; (M.O.); (A.J.P.); (A.L.)
| | - Agata J. Pacuła
- Department of Organic Chemistry, Faculty of Chemistry, Nicolaus Copernicus University, 7 Gagarin Street, 87-100 Torun, Poland; (M.O.); (A.J.P.); (A.L.)
| | - Anna Laskowska
- Department of Organic Chemistry, Faculty of Chemistry, Nicolaus Copernicus University, 7 Gagarin Street, 87-100 Torun, Poland; (M.O.); (A.J.P.); (A.L.)
| | - Angelika Długosz-Pokorska
- Department of Biomolecular Chemistry, Faculty of Medicine, Medical University of Lodz, Mazowiecka 6/8, 92-215 Lodz, Poland; (A.D.-P.); (A.J.)
| | - Anna Janecka
- Department of Biomolecular Chemistry, Faculty of Medicine, Medical University of Lodz, Mazowiecka 6/8, 92-215 Lodz, Poland; (A.D.-P.); (A.J.)
| | - Jacek Ścianowski
- Department of Organic Chemistry, Faculty of Chemistry, Nicolaus Copernicus University, 7 Gagarin Street, 87-100 Torun, Poland; (M.O.); (A.J.P.); (A.L.)
- Correspondence:
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