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Siqueira C, Ciancaleoni G, Saba S, Braga AL, Rafique J, Botteselle GV. Synthesis and mechanistic study of 2-(trifluoromethyl)-10H-phenoselenazine from double cross coupling reaction. AN ACAD BRAS CIENC 2024; 96:e20230745. [PMID: 38597492 DOI: 10.1590/0001-3765202420230745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Accepted: 09/18/2023] [Indexed: 04/11/2024] Open
Abstract
Phenoselenazines are nitrogen and selenium-based heterocyclic compounds that have important biological activities. However, their preparation methods are scarce and difficult to handle. The synthesis of a phenoselenazine from a simple and robust CuO nanoparticle catalyzed methodology, using bis-aniline-diselenide and 1,2-dihalobenzenes under microwave irradiation. Also, the double-cross-coupling reaction mechanism for C-Se and C-N bond formation, including the observation of a reaction intermediate by mass spectrometry have been studied.
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Affiliation(s)
- Cássio Siqueira
- Universidade Estadual do Centro-Oeste, Departamento de Química, Alameda Élio Antonio Dalla Vecchia, 838, 85040-167 Guarapuava, PR, Brazil
| | - Gianluca Ciancaleoni
- University of Pisa, Department of Chemistry and Industrial Chemistry, Via G. Moruzzi 13, I-56124 Pisa, Italy
| | - Sumbal Saba
- Universidade Federal de Goiás, LabSSOC, Instituto de Química, Avenida Esperança, s/n, 74690-900 Goiânia, GO, Brazil
| | - Antonio L Braga
- Universidade Federal de Santa Cararina, Departamento de Química, Rua Roberto Sampaio Gonzaga, s/n, 88040900 Florianópolis, SC, Brazil
| | - Jamal Rafique
- Universidade Federal de Goiás, LabSSOC, Instituto de Química, Avenida Esperança, s/n, 74690-900 Goiânia, GO, Brazil
- Universidade Federal do Mato Grosso do Sul, Instituto de Química, Avenida Senador Filinto Müller, 1555, 79074-460 Campo Grande, MS, Brazil
| | - Giancarlo V Botteselle
- Universidade Estadual do Centro-Oeste, Departamento de Química, Alameda Élio Antonio Dalla Vecchia, 838, 85040-167 Guarapuava, PR, Brazil
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Sousa JRL, Franco MS, Mendes LD, Araújo LA, Neto JSS, Frizon TEA, Dos Santos VB, Carasek E, Saba S, Rafique J, Braga AL. KIO 3-catalyzed selective oxidation of thiols to disulfides in water under ambient conditions. Org Biomol Chem 2024; 22:2175-2181. [PMID: 38259235 DOI: 10.1039/d3ob01913f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
Abstract
Herein, we report a KIO3-catalyzed oxidative coupling of thiols to their corresponding disulfides in water, in a short time and at ambient temperature. The reaction has a broad scope and exhibits good functional group tolerance, resulting in the desired products in excellent yields. This approach allows the reuse of the reaction system in multiple cycles and scale-up. Furthermore, the current protocol demonstrates compatibility for in situ generation of disulfides and post application in C(sp2)-H bond sulfenylation.
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Affiliation(s)
- José R L Sousa
- LabSelen, Departamento de Química, Universidade Federal de Santa Catarina - UFSC, Florianópolis, 88040-900, SC, Brazil.
| | - Marcelo S Franco
- LabSelen, Departamento de Química, Universidade Federal de Santa Catarina - UFSC, Florianópolis, 88040-900, SC, Brazil.
| | - Leila D Mendes
- LabSelen, Departamento de Química, Universidade Federal de Santa Catarina - UFSC, Florianópolis, 88040-900, SC, Brazil.
| | - Lucas A Araújo
- LabSO, Instituto de Química - IQ, Universidade Federal de Goiás - UFG, Goiânia 74690-900, GO, Brazil.
| | - José S S Neto
- LabSelen, Departamento de Química, Universidade Federal de Santa Catarina - UFSC, Florianópolis, 88040-900, SC, Brazil.
| | - Tiago E A Frizon
- Departamento de Energia e Sustentabilidade, Universidade Federal de Santa Catarina - UFSC, Campus Araranguá, Araranguá 88905-120, SC, Brazil
| | - Vanessa B Dos Santos
- Instituto de Química - INQUI, Universidade Federal do Mato Grosso do Sul - UFMS, Campo Grande, 79074-460, MS, Brazil.
| | - Eduardo Carasek
- LabSelen, Departamento de Química, Universidade Federal de Santa Catarina - UFSC, Florianópolis, 88040-900, SC, Brazil.
| | - Sumbal Saba
- Departamento de Energia e Sustentabilidade, Universidade Federal de Santa Catarina - UFSC, Campus Araranguá, Araranguá 88905-120, SC, Brazil
| | - Jamal Rafique
- Departamento de Energia e Sustentabilidade, Universidade Federal de Santa Catarina - UFSC, Campus Araranguá, Araranguá 88905-120, SC, Brazil
- Instituto de Química - INQUI, Universidade Federal do Mato Grosso do Sul - UFMS, Campo Grande, 79074-460, MS, Brazil.
| | - Antonio L Braga
- LabSelen, Departamento de Química, Universidade Federal de Santa Catarina - UFSC, Florianópolis, 88040-900, SC, Brazil.
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Ghosh P, Chhetri G, Mandal A, Chen Y, Hersh WH, Das S. C(sp 2)-H selenylation of substituted benzo[4,5]imidazo[2,1- b]thiazoles using phenyliodine(iii)bis(trifluoroacetate) as a mediator. RSC Adv 2024; 14:4462-4470. [PMID: 38312731 PMCID: PMC10835571 DOI: 10.1039/d4ra00057a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Accepted: 01/17/2024] [Indexed: 02/06/2024] Open
Abstract
Herein, an expeditious metal-free regioselective C-H selenylation of substituted benzo[4,5]imidazo[2,1-b]thiazole derivatives was devised to synthesize structurally orchestrated selenoethers with good to excellent yields. This PIFA [bis(trifluoroacetoxy)iodobenzene]-mediated protocol operates under mild conditions and offers broad functional group tolerance. In-depth mechanistic investigation supports the involvement of radical pathways. Furthermore, the synthetic utility of this methodology is portrayed through gram-scale synthesis.
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Affiliation(s)
- Prasanjit Ghosh
- Department of Chemistry, University of North Bengal Darjeeling-734013 India
| | - Gautam Chhetri
- Department of Chemistry, University of North Bengal Darjeeling-734013 India
| | - Anirban Mandal
- Department of Chemistry, University of North Bengal Darjeeling-734013 India
| | - Yu Chen
- Department of Chemistry and Biochemistry, Queens College and the Graduate Centre of City University of New York Flushing New York 11367-1597 USA
- PhD Program in Chemistry, The Graduate Center of the City University of New York 365 Fifth Ave. New York 10016 USA
| | - William H Hersh
- Department of Chemistry and Biochemistry, Queens College and the Graduate Centre of City University of New York Flushing New York 11367-1597 USA
- PhD Program in Chemistry, The Graduate Center of the City University of New York 365 Fifth Ave. New York 10016 USA
| | - Sajal Das
- Department of Chemistry, University of North Bengal Darjeeling-734013 India
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Fermiano MH, das Neves AR, da Silva F, Barros MSA, Vieira CB, Stein AL, Frizon TEA, Braga AL, de Arruda CCP, Parisotto EB, Saba S, Rafique J, Riul TB. Selenium-Containing (Hetero)Aryl Hybrids as Potential Antileishmanial Drug Candidates: In Vitro Screening against L. amazonensis. Biomedicines 2024; 12:213. [PMID: 38255318 PMCID: PMC10812941 DOI: 10.3390/biomedicines12010213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 12/29/2023] [Accepted: 01/09/2024] [Indexed: 01/24/2024] Open
Abstract
Leishmaniasis remains a significant global health concern, with current treatments relying on outdated drugs associated with high toxicity, lengthy administration, elevated costs, and drug resistance. Consequently, the urgent need for safer and more effective therapeutic options in leishmaniasis treatment persists. Previous research has highlighted selenium compounds as promising candidates for innovative leishmaniasis therapy. In light of this, a library of 10 selenium-containing diverse compounds was designed and evaluated in this study. These compounds included selenium-substituted indole, coumarin, chromone, oxadiazole, imidazo[1,2-a]pyridine, Imidazo[2,1-b]thiazole, and oxazole, among others. These compounds were screened against Leishmania amazonensis promastigotes and intracellular amastigotes, and their cytotoxicity was assessed in peritoneal macrophages, NIH/3T3, and J774A.1 cells. Among the tested compounds, MRK-106 and MRK-108 displayed the highest potency against L. amazonensis promastigotes with reduced cytotoxicity. Notably, MRK-106 and MRK-108 exhibited IC50 values of 3.97 µM and 4.23 µM, respectively, and most of the tested compounds showed low cytotoxicity in host cells (CC50 > 200 µM). Also, compounds MRK-107 and MRK-113 showed activity against intracellular amastigotes (IC50 18.31 and 15.93 µM and SI 12.55 and 10.92, respectively). In conclusion, the identified selenium-containing compounds hold potential structures as antileishmanial drug candidates to be further explored in subsequent studies. These findings represent a significant step toward the development of safer and more effective therapies for leishmaniasis, addressing the pressing need for novel and improved treatments.
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Affiliation(s)
- Maria Helena Fermiano
- Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição (FACFAN), Universidade Federal do Mato Grosso do Sul (UFMS), Campo Grande 79070-900, MS, Brazil (A.R.d.N.)
| | - Amarith Rodrigues das Neves
- Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição (FACFAN), Universidade Federal do Mato Grosso do Sul (UFMS), Campo Grande 79070-900, MS, Brazil (A.R.d.N.)
| | - Fernanda da Silva
- Instituto de Biociências (INBIO), Universidade Federal do Mato Grosso do Sul (UFMS), Campo Grande 79070-900, MS, Brazil
| | | | - Camila Barbosa Vieira
- LABSO, Instituto de Química (IQ), Universidade Federal de Goiás (UFG), Goiânia 74690-900, GO, Brazil (S.S.)
| | - André L. Stein
- Departamento de Química, Universidade Federal de Mato Grosso (UFMT), Cuiabá 78060-900, MT, Brazil
| | - Tiago Elias Allievi Frizon
- Departamento de Energia e Sustentabilidade, Universidade Federal de Santa Catarina (UFSC), Campus Araranguá, Araranguá 88905-120, SC, Brazil
| | - Antonio Luiz Braga
- Departamento de Química, Universidade Federal de Santa Catarina (UFSC), Florianópolis 88040-970, SC, Brazil
| | - Carla Cardozo Pinto de Arruda
- Instituto de Biociências (INBIO), Universidade Federal do Mato Grosso do Sul (UFMS), Campo Grande 79070-900, MS, Brazil
| | - Eduardo Benedetti Parisotto
- Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição (FACFAN), Universidade Federal do Mato Grosso do Sul (UFMS), Campo Grande 79070-900, MS, Brazil (A.R.d.N.)
| | - Sumbal Saba
- LABSO, Instituto de Química (IQ), Universidade Federal de Goiás (UFG), Goiânia 74690-900, GO, Brazil (S.S.)
| | - Jamal Rafique
- Instituto de Química (INQUI), Universidade Federal do Mato Grosso do Sul (UFMS), Campo Grande 79074-460, MS, Brazil;
- LABSO, Instituto de Química (IQ), Universidade Federal de Goiás (UFG), Goiânia 74690-900, GO, Brazil (S.S.)
| | - Thalita Bachelli Riul
- Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição (FACFAN), Universidade Federal do Mato Grosso do Sul (UFMS), Campo Grande 79070-900, MS, Brazil (A.R.d.N.)
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