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Yang J, Chan YY, Feng W, Tse YLS, Yeung YY. Study and Applications of Tetrasubstituted Hypervalent Selenium–Halogen Species in Catalytic Electrophilic Halogenations. ACS Catal 2023. [DOI: 10.1021/acscatal.2c05414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Junjie Yang
- Department of Chemistry and The State Key Laboratory of Synthetic Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
| | - Yung-Yin Chan
- Department of Chemistry and The State Key Laboratory of Synthetic Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
| | - Weida Feng
- Department of Chemistry and The State Key Laboratory of Synthetic Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
| | - Ying-Lung Steve Tse
- Department of Chemistry and The State Key Laboratory of Synthetic Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
| | - Ying-Yeung Yeung
- Department of Chemistry and The State Key Laboratory of Synthetic Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
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2
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Ali A Aldawood S, Das A, Banik BK. Tellurium-induced cyclization of olefinic compounds. PHYSICAL SCIENCES REVIEWS 2022. [DOI: 10.1515/psr-2021-0119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
In this article, we discuss about the importance of Tellurium (Te) in organic synthesis. Tellurium-induced cyclization of alkenyl compounds, as well as alkynyl compounds, are considered for the study. The developments in this area are incorporated in great detail. The mechanism of the reactions does not follow any straightforward process. This study opens up the possibility of stereocontrolled synthesis of complex natural products.
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Affiliation(s)
- Sara Ali A Aldawood
- Department of Mathematics and Natural Sciences , College of Sciences and Human Studies, Prince Mohammad Bin Fahd University , Al Khobar 31952 , Kingdom of Saudi Arabia
| | - Aparna Das
- Department of Mathematics and Natural Sciences , College of Sciences and Human Studies, Prince Mohammad Bin Fahd University , Al Khobar 31952 , Kingdom of Saudi Arabia
| | - Bimal Krishna Banik
- Department of Mathematics and Natural Sciences , College of Sciences and Human Studies, Prince Mohammad Bin Fahd University , Al Khobar 31952 , Kingdom of Saudi Arabia
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3
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Souza JPA, Menezes LRA, Garcia FP, Scariot DB, Bandeira PT, Bespalhok MB, Giese SOK, Hughes DL, Nakamura CV, Barison A, Oliveira ARM, Campos RB, Piovan L. Synthesis, Mechanism Elucidation and Biological Insights of Tellurium(IV)-Containing Heterocycles. Chemistry 2021; 27:14427-14437. [PMID: 34406689 DOI: 10.1002/chem.202102287] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Indexed: 11/08/2022]
Abstract
Inspired by the synthetic and biological potential of organotellurium substances, a series of five- and six-membered ring organotelluranes containing a Te-O bond were synthesized and characterized. Theoretical calculations elucidated the mechanism for the oxidation-cyclization processes involved in the formation of the heterocycles, consistent with chlorine transfer to hydroxy telluride, followed by a cyclization step with simultaneous formation of the new Te-O bond and deprotonation of the OH group. Moreover, theoretical calculations also indicated anti-diastereoisomers to be major products for two chirality center-containing compounds. Antileishmanial assays against Leishmania amazonensis promastigotes disclosed 1,2λ4 -oxatellurane LQ50 (IC50 =4.1±1.0; SI=12), 1,2λ4 -oxatellurolane LQ04 (IC50 =7.0±1.3; SI=7) and 1,2λ4 -benzoxatellurole LQ56 (IC50 =5.7±0.3; SI=6) as more powerful and more selective compounds than the reference, being up to four times more active. A stability study supported by 125 Te NMR analyses showed that these heterocycles do not suffer structural modifications in aqueous-organic media or at temperatures up to 65 °C.
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Affiliation(s)
- João Pedro A Souza
- Department of Chemistry, Universidade Federal do Paraná, Curitiba, PR, 81.931-480, Brazil
| | - Leociley R A Menezes
- Department of Chemistry, Universidade Federal do Paraná, Curitiba, PR, 81.931-480, Brazil
| | - Francielle P Garcia
- Health Sciences Center, Universidade Estadual de Maringá, Maringá, PR, 87.020-900, Brazil
| | - Débora B Scariot
- Health Sciences Center, Universidade Estadual de Maringá, Maringá, PR, 87.020-900, Brazil
| | - Pamela T Bandeira
- Department of Chemistry, Universidade Federal do Paraná, Curitiba, PR, 81.931-480, Brazil
| | - Mateus B Bespalhok
- Department of Chemistry, Universidade Federal do Paraná, Curitiba, PR, 81.931-480, Brazil
| | - Siddhartha O K Giese
- Department of Chemistry, Universidade Federal do Paraná, Curitiba, PR, 81.931-480, Brazil
| | - David L Hughes
- School of Chemistry, University of East Anglia, Norwich, NR4 7TJ, UK
| | - Celso V Nakamura
- Health Sciences Center, Universidade Estadual de Maringá, Maringá, PR, 87.020-900, Brazil
| | - Andersson Barison
- Department of Chemistry, Universidade Federal do Paraná, Curitiba, PR, 81.931-480, Brazil
| | - Alfredo R M Oliveira
- Department of Chemistry, Universidade Federal do Paraná, Curitiba, PR, 81.931-480, Brazil
| | - Renan B Campos
- Academic Department of Chemistry and Biology, Universidade Tecnológica Federal do Paraná, Curitiba, PR, 81.280-340, Brazil
| | - Leandro Piovan
- Department of Chemistry, Universidade Federal do Paraná, Curitiba, PR, 81.931-480, Brazil
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4
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Silva MS, Alves D, Hartwig D, Jacob RG, Perin G, Lenardão EJ. Selenium‐NMR Spectroscopy in Organic Synthesis: From Structural Characterization Toward New Investigations. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.202000582] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Márcio S. Silva
- LASOL – CCQFA Universidade Federal de Pelotas – UFPel – P.O. Box 354 – 96010-900 Pelotas, RS Brazil
| | - Diego Alves
- LASOL – CCQFA Universidade Federal de Pelotas – UFPel – P.O. Box 354 – 96010-900 Pelotas, RS Brazil
| | - Daniela Hartwig
- LASOL – CCQFA Universidade Federal de Pelotas – UFPel – P.O. Box 354 – 96010-900 Pelotas, RS Brazil
| | - Raquel G. Jacob
- LASOL – CCQFA Universidade Federal de Pelotas – UFPel – P.O. Box 354 – 96010-900 Pelotas, RS Brazil
| | - Gelson Perin
- LASOL – CCQFA Universidade Federal de Pelotas – UFPel – P.O. Box 354 – 96010-900 Pelotas, RS Brazil
| | - Eder J. Lenardão
- LASOL – CCQFA Universidade Federal de Pelotas – UFPel – P.O. Box 354 – 96010-900 Pelotas, RS Brazil
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5
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Aryltellurium Trihalides in the Synthesis of Heterocyclic Compounds (Microreview). Chem Heterocycl Compd (N Y) 2020. [DOI: 10.1007/s10593-020-02688-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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6
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Bandeira PT, Gotor-Fernández V, Piovan L. Stereoselective Bioreduction of Telluro-Acetophenones to Optically Active Hydroxy Tellurides. European J Org Chem 2020. [DOI: 10.1002/ejoc.201901841] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Pamela Taisline Bandeira
- Department of Chemistry; Federal University of Paraná; Avenida Coronel Francisco H. dos Santos 100 81531991 Curitiba Brazil
- Department of Organic and Inorganic Chemistry; University of Oviedo; Avenida Julián Clavería 8 33006 Oviedo Spain
| | - Vicente Gotor-Fernández
- Department of Organic and Inorganic Chemistry; University of Oviedo; Avenida Julián Clavería 8 33006 Oviedo Spain
| | - Leandro Piovan
- Department of Chemistry; Federal University of Paraná; Avenida Coronel Francisco H. dos Santos 100 81531991 Curitiba Brazil
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7
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Gorup LF, Perlatti B, Kuznetsov A, Nascente PADP, Wendler EP, Dos Santos AA, Padilha Barros WR, Sequinel T, Tomitao IDM, Kubo AM, Longo E, Camargo ER. Stability of di-butyl-dichalcogenide-capped gold nanoparticles: experimental data and theoretical insights. RSC Adv 2020; 10:6259-6270. [PMID: 35495990 PMCID: PMC9049692 DOI: 10.1039/c9ra07147d] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Accepted: 12/21/2019] [Indexed: 12/31/2022] Open
Abstract
Metals capped with organochalcogenides have attracted considerable interest due to their practical applications, which include catalysis, sensing, and biosensing, due to their optical, magnetic, electrochemical, adhesive, lubrication, and antibacterial properties. There are numerous reports of metals capped with organothiol molecules; however, there are few studies on metals capped with organoselenium or organotellurium. Thus, there is a gap to be filled regarding the properties of organochalcogenide systems which can be improved by replacing sulfur with selenium or tellurium. In the last decade, there has been significant development in the synthesis of selenium and tellurium compounds; however, it is difficult to find commercial applications of these compounds because there are few studies showing the feasibility of their synthesis and their advantages compared to organothiol compounds. Stability against oxidation by molecular oxygen under ambient conditions is one of the properties which can be improved by choosing the correct organochalcogenide; this can confer important advantages for many more suitable applications. This paper reports the successful synthesis and characterization of gold nanoparticles functionalized with organochalcogenide molecules (dibutyl-disulfide, dibutyl-diselenide and dibutyl-ditelluride) and evaluates the oxidation stability of the organochalcogenides. Spherical gold nanoparticles with diameters of 24 nm were capped with organochalcogenides and were investigated using X-ray photoelectron spectroscopy (XPS) to show the improved stability of organoselenium compared with organothiol and organotellurium. The results suggest that the organoselenium is a promising candidate to replace organothiol because of its enhanced stability towards oxidation by molecular oxygen under ambient conditions and its slow oxidation rate. The observed difference in the oxidation processes, as discussed, is also in agreement with theoretical calculations. This study presents the improved stability against oxidation by molecular oxygen under ambient conditions of organoselenium compared with organothiol, and organotellurium.![]()
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Affiliation(s)
- Luiz Fernando Gorup
- LIEC - Department of Chemistry
- UFSCar-Federal University of São Carlos
- São Carlos
- Brazil
- Faculty of Exact Sciences and Technology (FACET)
| | - Bruno Perlatti
- LIEC - Department of Chemistry
- UFSCar-Federal University of São Carlos
- São Carlos
- Brazil
| | - Aleksey Kuznetsov
- Departamento de Química
- Campus Santiago Vitacura
- Universidad Técnica Federico Santa María
- Santiago
- Chile
| | | | | | | | - Willyam Róger Padilha Barros
- Faculty of Exact Sciences and Technology (FACET)
- Department of Chemistry
- Federal University of Grande Dourados
- Dourados
- Brazil
| | - Thiago Sequinel
- Faculty of Exact Sciences and Technology (FACET)
- Department of Chemistry
- Federal University of Grande Dourados
- Dourados
- Brazil
| | - Isabela de Macedo Tomitao
- Faculty of Exact Sciences and Technology (FACET)
- Department of Chemistry
- Federal University of Grande Dourados
- Dourados
- Brazil
| | - Andressa Mayumi Kubo
- LIEC - Department of Chemistry
- UFSCar-Federal University of São Carlos
- São Carlos
- Brazil
| | - Elson Longo
- LIEC - Department of Chemistry
- UFSCar-Federal University of São Carlos
- São Carlos
- Brazil
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8
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Lima YR, Peglow TJ, Nobre PC, Campos PT, Perin G, Lenardão EJ, Silva MS. Chalcogen‐Containing Diols: A Novel Chiral Derivatizing Agent for
77
Se and
125
Te NMR Chiral Recognition of Primary Amines. ChemistrySelect 2019. [DOI: 10.1002/slct.201900097] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Yanka Rocha Lima
- Laboratório de Síntese Orgânica Limpa – LASOLCentro de Ciências Químicas, Farmacêuticas e de Alimentos – CCQFAUniversidade Federal de Pelotas – UFPel, Capão do Leão-RS, Brazil
| | - Thiago Jacobsen Peglow
- Laboratório de Síntese Orgânica Limpa – LASOLCentro de Ciências Químicas, Farmacêuticas e de Alimentos – CCQFAUniversidade Federal de Pelotas – UFPel, Capão do Leão-RS, Brazil
| | - Patrick Carvalho Nobre
- Laboratório de Síntese Orgânica Limpa – LASOLCentro de Ciências Químicas, Farmacêuticas e de Alimentos – CCQFAUniversidade Federal de Pelotas – UFPel, Capão do Leão-RS, Brazil
| | | | - Gelson Perin
- Laboratório de Síntese Orgânica Limpa – LASOLCentro de Ciências Químicas, Farmacêuticas e de Alimentos – CCQFAUniversidade Federal de Pelotas – UFPel, Capão do Leão-RS, Brazil
| | - Eder J. Lenardão
- Laboratório de Síntese Orgânica Limpa – LASOLCentro de Ciências Químicas, Farmacêuticas e de Alimentos – CCQFAUniversidade Federal de Pelotas – UFPel, Capão do Leão-RS, Brazil
| | - Márcio S. Silva
- Laboratório de Síntese Orgânica Limpa – LASOLCentro de Ciências Químicas, Farmacêuticas e de Alimentos – CCQFAUniversidade Federal de Pelotas – UFPel, Capão do Leão-RS, Brazil
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9
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Kadu R, Batabyal M, Kadyan H, Koner AL, Kumar S. An efficient copper-catalyzed synthesis of symmetrical bis(N-arylbenzamide) selenides and their conversion to hypervalent spirodiazaselenuranes and hydroxy congeners. Dalton Trans 2019; 48:7249-7260. [PMID: 30747185 DOI: 10.1039/c8dt04832k] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A copper catalyzed efficient synthetic method has been developed to access bis(N-arylbenzamide) selenides from 2-halo-N-arylbenzamide substrates and disodium selenide in HMPA at 110 °C. The developed protocol tolerates substituents in both N-aryl and benzamide rings of the 2-halobenzamide substrates and provides an array of bis(N-arylbenzamide) selenides in practical yields. The resulting selenides were transformed into hypervalent spirodiazaselenuranes by oxidation using aqueous hydrogen peroxide. (N-(1-Naphthyl)) spirodiazaselenurane is also structurally characterized by a single crystal X-ray study. Hydroxy-substituted spiroselenuranes have been prepared by careful demethylation of methoxy-substituted selenides followed by oxidation by hydrogen peroxide. Antioxidant properties for the decomposition of hydrogen peroxide and for the deactivation of radicals of hydroxy-substituted spiroselenuranes have been studied by the thiol assay and 2,2-diphenyl-1-picrylhydrazyl (DPPH) assay. Both hydroxy-substituted spiroselenuranes exhibit dual mimic functions of glutathione peroxidase (GPx) selenoenzyme and α-tocopherol for decomposition of hydrogen peroxide and deactivation of radicals, respectively.
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Affiliation(s)
- Rahul Kadu
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Bhopal, Bhopal By-pass Road, Bhauri, Bhopal-462066, India.
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10
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Marques NB, Jacob RG, Perin G, Lenardão EJ, Alves D, Silva MS. NMR chiral discrimination of chalcogen containing secondary alcohols. Chirality 2018; 31:41-51. [DOI: 10.1002/chir.23030] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Revised: 09/03/2018] [Accepted: 10/08/2018] [Indexed: 01/09/2023]
Affiliation(s)
- Naiade B.G. Marques
- Laboratório de Ressonância Magnética Nuclear, Centro de Ciências Naturais e Humanas (CCNH); Universidade Federal do ABC; Santo André Brazil
| | - Raquel G. Jacob
- Laboratório de Síntese Orgânica Limpa (LASOL), Centro de Ciências Químicas, Farmacêuticas e de Alimentos (CCQFA); Universidade Federal de Pelotas (UFPel); Capão do Leão Brazil
| | - Gelson Perin
- Laboratório de Síntese Orgânica Limpa (LASOL), Centro de Ciências Químicas, Farmacêuticas e de Alimentos (CCQFA); Universidade Federal de Pelotas (UFPel); Capão do Leão Brazil
| | - Eder J. Lenardão
- Laboratório de Síntese Orgânica Limpa (LASOL), Centro de Ciências Químicas, Farmacêuticas e de Alimentos (CCQFA); Universidade Federal de Pelotas (UFPel); Capão do Leão Brazil
| | - Diego Alves
- Laboratório de Síntese Orgânica Limpa (LASOL), Centro de Ciências Químicas, Farmacêuticas e de Alimentos (CCQFA); Universidade Federal de Pelotas (UFPel); Capão do Leão Brazil
| | - Márcio S. Silva
- Laboratório de Síntese Orgânica Limpa (LASOL), Centro de Ciências Químicas, Farmacêuticas e de Alimentos (CCQFA); Universidade Federal de Pelotas (UFPel); Capão do Leão Brazil
- Laboratório de Ressonância Magnética Nuclear, Centro de Ciências Naturais e Humanas (CCNH); Universidade Federal do ABC; Santo André Brazil
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11
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Teixeira ML, Menezes LRA, Barison A, de Oliveira ARM, Piovan L. Investigation of Chemical Stability of Dihalogenated Organotelluranes in Organic-Aqueous Media: The Protagonism of Water. J Org Chem 2018; 83:7341-7346. [PMID: 29373033 DOI: 10.1021/acs.joc.7b02971] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The biological activity of tellurium compounds is closely related to the tellurium oxidation state or some of their structural features. Hypervalent dihalogenated organotelluranes 1-[butyl(dichloro)-λ4-tellanyl]-2-(methoxymethyl)benzene (1a) and 1-[butyl(dibromide)-λ4-tellanyl]-2-(methoxymethyl)benzene (1b) have been described as inhibitors of proteases (cysteine and threonine) and tyrosine phosphatases. However, poor attention has been given to their physicochemical properties. Here, a detailed investigation of the stability in water of these organotelluranes is reported using 125Te NMR analysis. Dihalogenated organotelluranes 1a and 1b were both stable in DMSO- d6 (from 25 to 75 °C), demonstrating their thermal stability. However, the addition of a phosphate buffer solution (pH 2-8) to 1a or 1b resulted in an immediate conversion to a new Te species, assumed to be the corresponding telluroxide. Similar behavior was observed in pure water, demonstrating the low chemical stability of these dihalogenated species in the presence of water. These results allow concluding that previous biological activity reported for dihalogenated organotelluranes 1a and 1b could be attributed to the corresponding derivatives from the reaction with water. In the same way as for AS-101, we demonstrated that organotelluranes 1a and 1b are not stable in aqueous solution. It suggests a proactive role of these organotelluranes in previously reported biological activity.
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Affiliation(s)
- Mariana L Teixeira
- Department of Chemistry , Universidade Federal do Paraná , Avenida Coronel Francisco Heráclito dos Santos, 100 - Jardim das Américas , Curitiba , Paraná 81531980 , Brazil
| | - Leociley R A Menezes
- Department of Chemistry , Universidade Federal do Paraná , Avenida Coronel Francisco Heráclito dos Santos, 100 - Jardim das Américas , Curitiba , Paraná 81531980 , Brazil
| | - Andersson Barison
- Department of Chemistry , Universidade Federal do Paraná , Avenida Coronel Francisco Heráclito dos Santos, 100 - Jardim das Américas , Curitiba , Paraná 81531980 , Brazil
| | - Alfredo R M de Oliveira
- Department of Chemistry , Universidade Federal do Paraná , Avenida Coronel Francisco Heráclito dos Santos, 100 - Jardim das Américas , Curitiba , Paraná 81531980 , Brazil
| | - Leandro Piovan
- Department of Chemistry , Universidade Federal do Paraná , Avenida Coronel Francisco Heráclito dos Santos, 100 - Jardim das Américas , Curitiba , Paraná 81531980 , Brazil
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12
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Application of Heteronuclear NMR Spectroscopy to Bioinorganic and Medicinal Chemistry ☆. REFERENCE MODULE IN CHEMISTRY, MOLECULAR SCIENCES AND CHEMICAL ENGINEERING 2018. [PMCID: PMC7157447 DOI: 10.1016/b978-0-12-409547-2.10947-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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13
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Caracelli I, Maganhi SH, de Oliveira Cardoso J, Cunha RL, Vega-Teijido MA, Zukerman-Schpector J, Tiekink ER. Crystallographic and docking (Cathepsins B, K, L and S) studies on bioactive halotelluroxetanes. Z KRIST-CRYST MATER 2017. [DOI: 10.1515/zkri-2017-2079] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The molecular structures of the halotelluroxetanes p-MeOC6H4Te(X)[C(=C(H)X′)C(CH2)nO], X=X′=Cl and n=6 (1) and X=Cl, X′=Br and n=5 (4), show similar binuclear aggregates sustained by {· · ·Te–O}2 cores comprising covalent Te–O and secondary Te· · ·O interactions. The resulting C2ClO2(lone-pair) sets define pseudo-octahedral geometries. In each structure, C–X· · ·π(arene) interactions lead to supramolecular layers. Literature studies have shown these and related compounds (i.e. 2: X=X′=Cl and n=5; 3: X=X′=Br and n=5) to inhibit Cathepsins B, K, L and S to varying extents. Molecular docking calculations have been conducted on ligands (i.e. cations derived by removal of the tellurium-bound X atoms) 1′–3′ (note 3′=4′) enabling correlations between affinity for sub-sites and inhibition. The common feature of all docked complexes was the formation of a Te–S covalent bond with cysteine residues, the relative stability of the ligands with an E-configuration and the formation of a C–O· · ·π interaction with the phenyl ring; for 1′ the Te–S covalent bond was weak, a result correlating with its low inhibition profile. At the next level differences are apparent, especially with respect to the interactions formed by the organic-ligand-bound halides. While these atoms do not form specific interactions in Cathepsins B and K, in Cathepsin L, these halides are involved in C–O· · ·X halogen bonds.
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Affiliation(s)
- Ignez Caracelli
- BioMat, Departamento de Física , Universidade Federal de São Carlos , C.P. 676 , São Carlos, SP, 13565-905 , Brazil
| | - Stella H. Maganhi
- BioMat, Programa de Pós-graduação em Biotecnologia , Universidade Federal de São Carlos , C.P. 676 , São Carlos, SP, 13565-905 , Brazil
| | - Josiane de Oliveira Cardoso
- BioMat, Departamento de Física , Universidade Federal de São Carlos , C.P. 676 , São Carlos, SP, 13565-905 , Brazil
| | - Rodrigo L.O.R. Cunha
- Center of Natural Sciences and Humanities, Federal University of ABC , Santo André, São Paulo 09210-180 , Brazil
| | - Mauricio Angel Vega-Teijido
- Laboratório de Cristalografia, Estereodinâmica e Modelagem Molecular , Departamento de Química , Universidade Federal de São Carlos , C.P. 676 , São Carlos, SP, 13565-905 , Brazil
| | - Julio Zukerman-Schpector
- Laboratório de Cristalografia, Estereodinâmica e Modelagem Molecular , Departamento de Química , Universidade Federal de São Carlos , C.P. 676 , São Carlos, SP, 13565-905 , Brazil
| | - Edward R.T. Tiekink
- Research Centre for Crystalline Materials, School of Science and Technology , Sunway University , 47500 Bandar Sunway , Selangor Darul Ehsan , Malaysia
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14
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Princival C, Archilha MVLR, Dos Santos AA, Franco M, Braga AAC, Rodrigues-Oliveira AF, Correra TC, Cunha RLOR, Comasseto JV. Stability Study of Hypervalent Tellurium Compounds in Aqueous Solutions. ACS OMEGA 2017; 2:4431-4439. [PMID: 31457735 PMCID: PMC6641895 DOI: 10.1021/acsomega.7b00628] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Accepted: 07/19/2017] [Indexed: 06/10/2023]
Abstract
Hypervalent tellurium compounds (telluranes) are promising therapeutical agents with negligible toxicities for some diseases in animal models. The C-Te bond of organotellurium compounds is commonly considered unstable, disfavoring their applicability in biological studies. In this study, the stability of a set of telluranes composed of an inorganic derivative and noncharged and charged organic derivatives was monitored in aqueous media with 1H, 13C, and 125Te NMR spectroscopy and high-resolution mass spectrometry. Organic telluranes were found to be remarkably resistant and stable to hydrolysis, whereas the inorganic tellurane AS101 is totally converted to the hydrolysis product, trichlorooxytellurate, [TeOCl 3 ]-, which was also observed in the hydrolysis of TeCl 4 . The noteworthy stability of organotelluranes in aqueous media makes them prone to further structure-activity relationship studies and to be considered for broad biological investigations.
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Affiliation(s)
| | | | | | - Maurício
P. Franco
- Instituto
de Química, Universidade de São
Paulo, São
Paulo, SP 05508-020, Brazil
| | - Ataualpa A. C. Braga
- Instituto
de Química, Universidade de São
Paulo, São
Paulo, SP 05508-020, Brazil
| | | | - Thiago C. Correra
- Instituto
de Química, Universidade de São
Paulo, São
Paulo, SP 05508-020, Brazil
| | - Rodrigo L. O. R. Cunha
- Centro
de Ciências Naturais e Humanas, Universidade
Federal do ABC, Santo André, SP 09210-580, Brazil
| | - João V. Comasseto
- Instituto
de Química, Universidade de São
Paulo, São
Paulo, SP 05508-020, Brazil
- Instituto
de Ciências Ambientais, Químicas e Farmacêuticas, Universidade Federal de São Paulo, Diadema, SP 04021-001, Brazil
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15
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Oliveira SS, Cunha RL, Silva MS. 77Se and 125Te NMR spectroscopy for enantiopurity determination of chalcogen amines. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.08.091] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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16
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Discovery of novel non-covalent inhibitors selective to the β5-subunit of the human 20S proteasome. Eur J Med Chem 2015; 98:61-8. [DOI: 10.1016/j.ejmech.2015.05.023] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2014] [Revised: 05/14/2015] [Accepted: 05/14/2015] [Indexed: 12/30/2022]
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17
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Park H, Edgar LJ, Lumba MA, Willis LM, Nitz M. Organotellurium scaffolds for mass cytometry reagent development. Org Biomol Chem 2015; 13:7027-33. [DOI: 10.1039/c5ob00593k] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Tellurophenes are promising biocompatible mass tags.
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Affiliation(s)
- Hanuel Park
- Department of Chemistry
- University of Toronto
- Toronto 80 St. George St
- Canada
| | - Landon J. Edgar
- Department of Chemistry
- University of Toronto
- Toronto 80 St. George St
- Canada
| | - Matthew A. Lumba
- Department of Chemistry
- University of Toronto
- Toronto 80 St. George St
- Canada
| | - Lisa M. Willis
- Department of Chemistry
- University of Toronto
- Toronto 80 St. George St
- Canada
| | - Mark Nitz
- Department of Chemistry
- University of Toronto
- Toronto 80 St. George St
- Canada
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18
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Silva MS, Andrade LH. 77Se and 125Te NMR spectroscopy on a selectivity study of organochalcogenanes with l-amino acids. Org Biomol Chem 2015; 13:5924-9. [DOI: 10.1039/c5ob00373c] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Organochalcogenanes exhibited a remarkably high selectivity for l-cysteine which was monitored by 77Se and 125Te NMR spectroscopy.
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Affiliation(s)
- Marcio S. Silva
- Instituto de Química
- Universidade de São Paulo
- São Paulo-SP
- Brazil
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19
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Silva MS, Pietrobom D. Chiral discrimination of β-telluride carboxylic acids by NMR spectroscopy. NEW J CHEM 2015. [DOI: 10.1039/c5nj01877c] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A simple and effective procedure for the chiral discrimination of β-telluride carboxylic acids by 1H and 125Te NMR spectroscopy is presented.
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Affiliation(s)
- Marcio S. Silva
- Centro de Ciências Naturais e Humanas – CCNH
- Universidade Federal do ABC
- Santo André-SP
- Brazil
| | - Daniel Pietrobom
- Centro de Ciências Naturais e Humanas – CCNH
- Universidade Federal do ABC
- Santo André-SP
- Brazil
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20
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Milani P, Demasi M, de Rezende L, Amaral ATD, Andrade LH. Synthesis ofl-cysteine-based boron compounds and their evaluation as proteasome inhibitors. NEW J CHEM 2014. [DOI: 10.1039/c4nj00612g] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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