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Coelho R, De Benedictis CA, Sauer AK, Figueira AJ, Faustino H, Grabrucker AM, Gomes CM. Secondary Modification of S100B Influences Anti Amyloid-β Aggregation Activity and Alzheimer's Disease Pathology. Int J Mol Sci 2024; 25:1787. [PMID: 38339064 PMCID: PMC10855146 DOI: 10.3390/ijms25031787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2024] [Revised: 01/25/2024] [Accepted: 01/30/2024] [Indexed: 02/12/2024] Open
Abstract
Proteinaceous aggregates accumulate in neurodegenerative diseases such as Alzheimer's Disease (AD), inducing cellular defense mechanisms and altering the redox status. S100 pro-inflammatory cytokines, particularly S100B, are activated during AD, but recent findings reveal an unconventional molecular chaperone role for S100B in hindering Aβ aggregation and toxicity. This suggests a potential protective role for S100B at the onset of Aβ proteotoxicity, occurring in a complex biochemical environment prone to oxidative damage. Herein, we report an investigation in which extracellular oxidative conditions are mimicked to test if the susceptibility of S100B to oxidation influences its protective activities. Resorting to mild oxidation of S100B, we observed methionine oxidation as inferred from mass spectrometry, but no cysteine-mediated crosslinking. Structural analysis showed that the folding, structure, and stability of oxidized S100B were not affected, and nor was its quaternary structure. However, studies on Aβ aggregation kinetics indicated that oxidized S100B was more effective in preventing aggregation, potentially linked to the oxidation of Met residues within the S100:Aβ binding cleft that favors interactions. Using a cell culture model to analyze the S100B functions in a highly oxidative milieu, as in AD, we observed that Aβ toxicity is rescued by the co-administration of oxidized S100B to a greater extent than by S100B. Additionally, results suggest a disrupted positive feedback loop involving S100B which is caused by its oxidation, leading to the downstream regulation of IL-17 and IFN-α2 expression as mediated by S100B.
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Affiliation(s)
- Romina Coelho
- BioISI—Instituto de Biosistemas e Ciências Integrativas, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal; (R.C.); (A.J.F.)
- Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal
| | - Chiara A. De Benedictis
- Cellular Neurobiology and Neuro-Nanotechnology Laboratory, Department of Biological Sciences, University of Limerick, V94PH61 Limerick, Ireland; (C.A.D.B.); (A.K.S.)
- Bernal Institute, University of Limerick, V94PH61 Limerick, Ireland
| | - Ann Katrin Sauer
- Cellular Neurobiology and Neuro-Nanotechnology Laboratory, Department of Biological Sciences, University of Limerick, V94PH61 Limerick, Ireland; (C.A.D.B.); (A.K.S.)
- Bernal Institute, University of Limerick, V94PH61 Limerick, Ireland
- Health Research Institute (HRI), University of Limerick, V94PH61 Limerick, Ireland
| | - António J. Figueira
- BioISI—Instituto de Biosistemas e Ciências Integrativas, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal; (R.C.); (A.J.F.)
- Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal
| | - Hélio Faustino
- Research Institute for Medicines (iMed.ULisboa), Faculdade de Farmácia, Universidade de Lisboa, 1649-003 Lisboa, Portugal;
- Association BLC3—Technology and Innovation Campus, Centre Bio R&D Unit, Oliveira do Hospital, Rua Nossa Senhora da Conceição No. 2, 3405-155 Coimbra, Portugal
| | - Andreas M. Grabrucker
- Cellular Neurobiology and Neuro-Nanotechnology Laboratory, Department of Biological Sciences, University of Limerick, V94PH61 Limerick, Ireland; (C.A.D.B.); (A.K.S.)
- Bernal Institute, University of Limerick, V94PH61 Limerick, Ireland
- Health Research Institute (HRI), University of Limerick, V94PH61 Limerick, Ireland
| | - Cláudio M. Gomes
- BioISI—Instituto de Biosistemas e Ciências Integrativas, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal; (R.C.); (A.J.F.)
- Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal
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2
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Farinha D, Faustino H, Nunes C, Sales H, Pontes R, Nunes J. Bioactive Compounds of Portuguese Fruits with PDO and PGI. Foods 2023; 12:2994. [PMID: 37627993 PMCID: PMC10453760 DOI: 10.3390/foods12162994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 07/25/2023] [Accepted: 08/02/2023] [Indexed: 08/27/2023] Open
Abstract
The European Union has established two designations, Protected Designation of Origin (PDO) and Protected Geographical Indication (PGI), to guarantee the authenticity of products with valued specificities associated with the regions where they are produced. The valorization of these products, particularly fruits, not only preserves their natural origins but also promotes the cultivalion of specific regional fruit varieties. This contributes to the preservation of biodiversity and the development of innovative bio-based products in the regions of production. In recent years, substantial efforts have been made to characterize PDO and PGI fruits, particularly in relation to the presence of bioactive compounds with antioxidant and antimicrobial properties. Portugal, with its diverse range of climates and geographical characteristics, is home to numerous fruits with unique flavors, textures, and appearances, many of which are now recognized with PDO or PGI seals. This review compiles data from the production of Portuguese fruits with PDO designations, such as the 'Maça Bravo de Esmolfe' (apple) and 'Pera Rocha do Oeste' (pear), and PGI designations, such as 'Citrinos do Algarve' (citrus)and 'Cereja da Cova da Beira' (cherry), and summarizes studies focusing on the bioactive compounds present in these fruits. The presence of bioactive compounds is a significant aspect of nutritious food, associated with health benefits that consumers are increasingly aware of and value.
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Affiliation(s)
| | | | - Catarina Nunes
- Association BLC3—Technology and Innovation Campus, Centre Bio R&D Unit, Oliveira do Hospital, Rua Nossa Senhora da Conceição nº 2, 3405-155 Coimbra, Portugal; (D.F.); (H.F.); (H.S.); (R.P.); (J.N.)
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3
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Silva MJSA, Faustino H, Cavadas R, Veiros LF, Gois PMP. Interactive Bioconjugation at N‐terminal Cysteines using O‑Salicylaldehyde Esters towards dual site‐selective functionalization. Chemistry 2022; 28:e202202377. [PMID: 36245264 PMCID: PMC10099860 DOI: 10.1002/chem.202202377] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Indexed: 11/06/2022]
Abstract
N-terminal Cys modification has been intensively studied to produce homogeneous bioconjugates essentially through two modes of reaction: reversible modification with the equilibrium shifted towards the formation of the desired conjugate or stable and irreversible conjugates. Herein, we report a new method of N-terminal cysteine modification using O-salicylaldehyde esters (OSAEs) through fast conjugation and irreversible deconjugation. These reagents can rapidly react with N-terminal Cys at low-micromolar concentration to form thiazolidines with subsequent hydrolysis of the ester moiety to the phenolic derivative. These phenolic thiazolidines can be hydrolyzed at acidic pH (≈4.5) to recover the intact N-terminal Cys. Bioconjugation reactions using OSAEs offer controlled reversibility to as act as a protecting group for N-terminal cysteines, allowing the modification of in-chain residues without perturbing the N-terminal Cys, which can then be deprotected and used as a conjugation site.
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Affiliation(s)
| | - Hélio Faustino
- Universidade de Lisboa Pharmacy Faculty Universidade de Lisboa PORTUGAL
| | - Rafaela Cavadas
- Universidade de Lisboa Pharmacy Faculty Universidade de Lisboa PORTUGAL
| | - Luís F. Veiros
- Universidade de Lisboa Centro de Química Estrutural, Institute of Molecular Sciences IST PORTUGAL
| | - Pedro Miguel pimenta Gois
- Pharmacy Faculty - Lisbon University iMed - Institute for Medicines and Phamaceutical Sciences Av. Prof. Gama Pinto 1649-003 Lisboa PORTUGAL
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4
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Djaló M, Silva MJSA, Faustino H, Pinto SN, Mendonça R, Gois PMP. Multivalent NHS-activated acrylates for orthogonal site-selective functionalisation of peptides at cysteine residues. Chem Commun (Camb) 2022; 58:7928-7931. [PMID: 35758206 DOI: 10.1039/d2cc02204d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The site-selective chemical appendage of multiple functionalities on a native peptide backbone is a highly demanding and complex tool of modern chemical biology. Here, novel NHS-activated acrylates were designed to hold various payloads in a single bioconjugation handle that is able to site-selectively and orthogonally target the N-terminal cysteine of peptides.
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Affiliation(s)
- Mariama Djaló
- Research Institute for Medicines (iMed. ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Lisbon, Portugal.
| | - Maria J S A Silva
- Research Institute for Medicines (iMed. ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Lisbon, Portugal.
| | - Hélio Faustino
- Research Institute for Medicines (iMed. ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Lisbon, Portugal. .,Association BLC3-Innovation and Technology Campus, Oliveira do Hospital, Portugal
| | - Sandra N Pinto
- iBB-Institute for Bioengineering and Biosciences and i4HB-Institute for Health and Bioeconomy, Instituto Superior Técnico, Av. Rovisco Pais, 1049-001, Lisboa, Portugal
| | | | - Pedro M P Gois
- Research Institute for Medicines (iMed. ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Lisbon, Portugal.
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5
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Poeira DL, Negrão ACR, Faustino H, Coelho JAS, Gomes CSB, Gois PMP, Marques MMB. Hypervalent Iodine(III) Reagents with Transferable Primary Amines: Structure and Reactivity on the Electrophilic α-Amination of Stabilized Enolates. Org Lett 2022; 24:776-781. [PMID: 34978835 DOI: 10.1021/acs.orglett.1c04312] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
A new family of hypervalent iodine reagents containing transferable primary amine groups is described. Benziodoxolone-based reagents were synthesized on the gram-scale through operationally simple reactions in up to quantitative yields. These bench-stable solids were characterized by X-ray analysis and successfully employed in the α-amination of indanone-based β-ketoesters in up to 83% yield. Mechanistic studies indicate a substitution mechanism involving an electrophilic amine.
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Affiliation(s)
- Diogo L Poeira
- LAQV@REQUIMTE, Department of Chemistry, NOVA School of Science and Technology, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - Ana Cláudia R Negrão
- LAQV@REQUIMTE, Department of Chemistry, NOVA School of Science and Technology, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - Hélio Faustino
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisboa, Portugal
| | - Jaime A S Coelho
- Centro de Química Estrutural, Faculty of Sciences, Universidade de Lisboa, 1749-016 Lisboa, Portugal
| | - Clara S B Gomes
- LAQV@REQUIMTE, Department of Chemistry, NOVA School of Science and Technology, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal.,Associate Laboratory i4HB - Institute for Health and Bioeconomy, UCIBIO - Applied Molecular Biosciences Unit, Department of Chemistry, NOVA School of Science and Technology, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - Pedro M P Gois
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisboa, Portugal
| | - M Manuel B Marques
- LAQV@REQUIMTE, Department of Chemistry, NOVA School of Science and Technology, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
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António JPM, Carvalho JI, André AS, Dias JNR, Aguiar SI, Faustino H, Lopes RMRM, Veiros LF, Bernardes GJL, Silva FA, Gois PMP. Diazaborines Are a Versatile Platform to Develop ROS‐Responsive Antibody Drug Conjugates**. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202109835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- João P. M. António
- Research Institute for Medicines (iMed.ULisboa) Faculdade de Farmácia Universidade de Lisboa Av. Prof. Gama Pinto 1649-003 Lisboa Portugal
| | - Joana Inês Carvalho
- Research Institute for Medicines (iMed.ULisboa) Faculdade de Farmácia Universidade de Lisboa Av. Prof. Gama Pinto 1649-003 Lisboa Portugal
| | - Ana S. André
- Centro de Investigação Interdisciplinar em Sanidade Animal Faculdade de Medicina Veterinária Universidade de Lisboa Av. Universidade Técnica 1300-477 Lisboa Portugal
| | - Joana N. R. Dias
- Centro de Investigação Interdisciplinar em Sanidade Animal Faculdade de Medicina Veterinária Universidade de Lisboa Av. Universidade Técnica 1300-477 Lisboa Portugal
| | - Sandra I. Aguiar
- Centro de Investigação Interdisciplinar em Sanidade Animal Faculdade de Medicina Veterinária Universidade de Lisboa Av. Universidade Técnica 1300-477 Lisboa Portugal
| | - Hélio Faustino
- Research Institute for Medicines (iMed.ULisboa) Faculdade de Farmácia Universidade de Lisboa Av. Prof. Gama Pinto 1649-003 Lisboa Portugal
| | - Ricardo M. R. M. Lopes
- Research Institute for Medicines (iMed.ULisboa) Faculdade de Farmácia Universidade de Lisboa Av. Prof. Gama Pinto 1649-003 Lisboa Portugal
| | - Luis F. Veiros
- Centro de Química Estrutural and Departamento de Engenharia Química Instituto Superior Técnico Universidade de Lisboa Av. Rovisco Pais 1 1049-001 Lisboa Portugal
| | - Gonçalo J. L. Bernardes
- Instituto de Medicina Molecular João Lobo Antunes Faculdade de Medicina Universidade de Lisboa Avenida Professor Egas Moniz 1649-028 Lisboa Portugal
- Yusuf Hamied Department of Chemistry University of Cambridge Lensfield Road CB2 1EW Cambridge United Kingdom
| | - Frederico A. Silva
- Centro de Investigação Interdisciplinar em Sanidade Animal Faculdade de Medicina Veterinária Universidade de Lisboa Av. Universidade Técnica 1300-477 Lisboa Portugal
| | - Pedro M. P. Gois
- Research Institute for Medicines (iMed.ULisboa) Faculdade de Farmácia Universidade de Lisboa Av. Prof. Gama Pinto 1649-003 Lisboa Portugal
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7
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António JPM, Carvalho JI, André AS, Dias JNR, Aguiar SI, Faustino H, Lopes RMRM, Veiros LF, Bernardes GJL, da Silva FA, Gois PMP. Diazaborines Are a Versatile Platform to Develop ROS-Responsive Antibody Drug Conjugates*. Angew Chem Int Ed Engl 2021; 60:25914-25921. [PMID: 34741376 DOI: 10.1002/anie.202109835] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Indexed: 12/11/2022]
Abstract
Antibody-drug conjugates (ADCs) are a new class of therapeutics that combine the lethality of potent cytotoxic drugs with the targeting ability of antibodies to selectively deliver drugs to cancer cells. In this study we show for the first time the synthesis of a reactive-oxygen-species (ROS)-responsive ADC (VL-DAB31-SN-38) that is highly selective and cytotoxic to B-cell lymphoma (CLBL-1 cell line, IC50 value of 54.1 nM). The synthesis of this ADC was possible due to the discovery that diazaborines (DABs) are a very effective ROS-responsive unit that are also very stable in buffer and in plasma. DFT calculations performed on this system revealed a favorable energetic profile (ΔGR=-74.3 kcal mol-1 ) similar to the oxidation mechanism of aromatic boronic acids. DABs' very fast formation rate and modularity enabled the construction of different ROS-responsive linkers featuring self-immolative modules, bioorthogonal functions, and bioconjugation handles. These structures were used in the site-selective functionalization of a VL antibody domain and in the construction of the homogeneous ADC.
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Affiliation(s)
- João P M António
- Research Institute for Medicines (iMed.ULisboa), Faculdade de Farmácia, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisboa, Portugal
| | - Joana Inês Carvalho
- Research Institute for Medicines (iMed.ULisboa), Faculdade de Farmácia, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisboa, Portugal
| | - Ana S André
- Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, Av. Universidade Técnica, 1300-477, Lisboa, Portugal
| | - Joana N R Dias
- Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, Av. Universidade Técnica, 1300-477, Lisboa, Portugal
| | - Sandra I Aguiar
- Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, Av. Universidade Técnica, 1300-477, Lisboa, Portugal
| | - Hélio Faustino
- Research Institute for Medicines (iMed.ULisboa), Faculdade de Farmácia, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisboa, Portugal
| | - Ricardo M R M Lopes
- Research Institute for Medicines (iMed.ULisboa), Faculdade de Farmácia, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisboa, Portugal
| | - Luis F Veiros
- Centro de Química Estrutural and Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais 1, 1049-001, Lisboa, Portugal
| | - Gonçalo J L Bernardes
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Avenida Professor Egas Moniz, 1649-028, Lisboa, Portugal.,Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, CB2 1EW, Cambridge, United Kingdom
| | - Frederico A da Silva
- Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, Av. Universidade Técnica, 1300-477, Lisboa, Portugal
| | - Pedro M P Gois
- Research Institute for Medicines (iMed.ULisboa), Faculdade de Farmácia, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisboa, Portugal
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8
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António JPM, Faustino H, Gois PMP. Correction: A 2-formylphenylboronic acid (2FPBA)-maleimide crosslinker: a versatile platform for Cys-peptide-hydrazine conjugation and interplay. Org Biomol Chem 2021; 19:7724. [PMID: 34473185 DOI: 10.1039/d1ob90119b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Correction for 'A 2-formylphenylboronic acid (2FPBA)-maleimide crosslinker: a versatile platform for Cys-peptide-hydrazine conjugation and interplay' by João P. M. António et al., Org. Biomol. Chem., 2021, 19, 6221-6226, DOI: 10.1039/D1OB00917F.
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Affiliation(s)
- João P M António
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Lisbon, Portugal. .,Chimie ParisTech, PSL University, Institute of Chemistry for Life and Health Sciences, Laboratory for Inorganic Chemical Biology, F-75005 Paris, France
| | - Hélio Faustino
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Lisbon, Portugal. .,Association BLC3-Innovation and Technology Campus, Oliveira do Hospital, Portugal
| | - Pedro M P Gois
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Lisbon, Portugal.
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Silva MJSA, Faustino H, Coelho JAS, Pinto MV, Fernandes A, Compañón I, Corzana F, Gasser G, Gois PMP. Efficient Amino‐Sulfhydryl Stapling on Peptides and Proteins Using Bifunctional NHS‐Activated Acrylamides. Angew Chem Int Ed Engl 2021; 60:10850-10857. [DOI: 10.1002/anie.202016936] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Indexed: 02/06/2023]
Affiliation(s)
- Maria J. S. A. Silva
- Research Institute for Medicines (iMed.ULisboa) Faculty of Pharmacy Universidade de Lisboa Lisbon Portugal
- Chimie ParisTech PSL University CNRS Institute of Chemistry for Life and Health Sciences Laboratory for Inorganic Chemical Biology 75005 Paris France
| | - Hélio Faustino
- Research Institute for Medicines (iMed.ULisboa) Faculty of Pharmacy Universidade de Lisboa Lisbon Portugal
| | - Jaime A. S. Coelho
- Research Institute for Medicines (iMed.ULisboa) Faculty of Pharmacy Universidade de Lisboa Lisbon Portugal
| | - Maria V. Pinto
- Research Institute for Medicines (iMed.ULisboa) Faculty of Pharmacy Universidade de Lisboa Lisbon Portugal
| | - Adelaide Fernandes
- Research Institute for Medicines (iMed.ULisboa) Faculty of Pharmacy Universidade de Lisboa Lisbon Portugal
| | - Ismael Compañón
- Departamento de Química Centro de Investigación en Síntesis Química Universidad de La Rioja 26006 Logroño La Rioja Spain
| | - Francisco Corzana
- Departamento de Química Centro de Investigación en Síntesis Química Universidad de La Rioja 26006 Logroño La Rioja Spain
| | - Gilles Gasser
- Chimie ParisTech PSL University CNRS Institute of Chemistry for Life and Health Sciences Laboratory for Inorganic Chemical Biology 75005 Paris France
| | - Pedro M. P. Gois
- Research Institute for Medicines (iMed.ULisboa) Faculty of Pharmacy Universidade de Lisboa Lisbon Portugal
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10
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Silva MJSA, Faustino H, Coelho JAS, Pinto MV, Fernandes A, Compañón I, Corzana F, Gasser G, Gois PMP. Efficient Amino‐Sulfhydryl Stapling on Peptides and Proteins Using Bifunctional NHS‐Activated Acrylamides. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202016936] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Maria J. S. A. Silva
- Research Institute for Medicines (iMed.ULisboa) Faculty of Pharmacy Universidade de Lisboa Lisbon Portugal
- Chimie ParisTech PSL University CNRS Institute of Chemistry for Life and Health Sciences Laboratory for Inorganic Chemical Biology 75005 Paris France
| | - Hélio Faustino
- Research Institute for Medicines (iMed.ULisboa) Faculty of Pharmacy Universidade de Lisboa Lisbon Portugal
| | - Jaime A. S. Coelho
- Research Institute for Medicines (iMed.ULisboa) Faculty of Pharmacy Universidade de Lisboa Lisbon Portugal
| | - Maria V. Pinto
- Research Institute for Medicines (iMed.ULisboa) Faculty of Pharmacy Universidade de Lisboa Lisbon Portugal
| | - Adelaide Fernandes
- Research Institute for Medicines (iMed.ULisboa) Faculty of Pharmacy Universidade de Lisboa Lisbon Portugal
| | - Ismael Compañón
- Departamento de Química Centro de Investigación en Síntesis Química Universidad de La Rioja 26006 Logroño La Rioja Spain
| | - Francisco Corzana
- Departamento de Química Centro de Investigación en Síntesis Química Universidad de La Rioja 26006 Logroño La Rioja Spain
| | - Gilles Gasser
- Chimie ParisTech PSL University CNRS Institute of Chemistry for Life and Health Sciences Laboratory for Inorganic Chemical Biology 75005 Paris France
| | - Pedro M. P. Gois
- Research Institute for Medicines (iMed.ULisboa) Faculty of Pharmacy Universidade de Lisboa Lisbon Portugal
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11
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António JPM, Faustino H, Gois PMP. A 2-formylphenylboronic acid (2FPBA)-maleimide crosslinker: a versatile platform for Cys-peptide-hydrazine conjugation and interplay. Org Biomol Chem 2021; 19:6221-6226. [PMID: 34198316 DOI: 10.1039/d1ob00917f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
In this work, we describe the preparation of a heterobifunctional 2-formylphenylboronic acid (2-FPBA)-maleimide crosslinker and explore its versatility in the preparation of various bioconjugates. We demonstrate the straightforward attachment of hydrazine payloads to cysteine residues in peptides, as well as the crosslinking of different thiol-bearing peptides or payloads with N-terminal cysteine peptides. Importantly, the dynamic nature of the 2-FPBA handle enables an interplay between the thiazolidine and diazaborine forms, which allows obtaining various products controlled by (and in some cases independent of) the order of addition of the components.
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Affiliation(s)
- João P M António
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Lisbon, Portugal. and Chimie ParisTech, PSL University, Institute of Chemistry for Life and Health Sciences, Laboratory for Inorganic Chemical Biology, F-75005 Paris, France
| | - Hélio Faustino
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Lisbon, Portugal. and Association BLC3-Innovation and Technology Campus, Oliveira do Hospital, Portugal
| | - Pedro M P Gois
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Lisbon, Portugal.
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12
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Paterna R, Padanha R, Russo R, Frade RF, Faustino H, Gois PM. Synthesis of 4-substituted-3-Hydroxyquinolin-2(1H)-ones with anticancer activity. Tetrahedron 2020. [DOI: 10.1016/j.tet.2020.130983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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13
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Affiliation(s)
- Diogo L. Poeira
- LAQV@REQUIMTE; Departamento de Química; Faculdade de Ciências e Tecnologia; Universidade Nova de Lisboa; Campus de Caparica 2829-516 Caparica Portugal
| | - João Macara
- LAQV@REQUIMTE; Departamento de Química; Faculdade de Ciências e Tecnologia; Universidade Nova de Lisboa; Campus de Caparica 2829-516 Caparica Portugal
| | - Hélio Faustino
- Research Institute for Medicines (iMed.ULisboa); Faculty of Pharmacy; Universidade de Lisboa; Av. Prof. Gama Pinto 1649-003 Lisboa Portugal
| | - Jaime A. S. Coelho
- Research Institute for Medicines (iMed.ULisboa); Faculty of Pharmacy; Universidade de Lisboa; Av. Prof. Gama Pinto 1649-003 Lisboa Portugal
| | - Pedro M. P. Gois
- Research Institute for Medicines (iMed.ULisboa); Faculty of Pharmacy; Universidade de Lisboa; Av. Prof. Gama Pinto 1649-003 Lisboa Portugal
| | - M. Manuel B. Marques
- LAQV@REQUIMTE; Departamento de Química; Faculdade de Ciências e Tecnologia; Universidade Nova de Lisboa; Campus de Caparica 2829-516 Caparica Portugal
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14
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Abstract
Maleimide chemistry stands out in the bioconjugation toolbox by virtue of its synthetic accessibility, excellent reactivity, and practicability. The second-generation of clinically approved antibody-drug conjugates (ADC) and much of the current ADC pipeline in clinical trials contain the maleimide linkage. However, thiosuccinimide linkages are now known to be less robust than once thought, and ergo, are correlated with suboptimal pharmacodynamics, pharmacokinetics, and safety profiles in some ADC constructs. Rational design of novel generations of maleimides and maleimide-type reagents have been reported to address the shortcomings of classical maleimides, allowing for the formation of robust bioconjugate linkages. This review highlights the main strategies for rational reagent design that have allowed irreversible bioconjugations in cysteines, reversible labelling strategies and disulfide re-bridging.
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Affiliation(s)
- João M J M Ravasco
- Bioorganic Chemistry Department, Research Institute for Medicines, (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisboa, Portugal
| | - Hélio Faustino
- Bioorganic Chemistry Department, Research Institute for Medicines, (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisboa, Portugal
| | - Alexandre Trindade
- Bioorganic Chemistry Department, Research Institute for Medicines, (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisboa, Portugal.,School of Chemistry, University of Leeds, Leeds, LS2 9JT, UK
| | - Pedro M P Gois
- Bioorganic Chemistry Department, Research Institute for Medicines, (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisboa, Portugal
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15
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Lopes RMRM, Ventura AE, Silva LC, Faustino H, Gois PMP. N,O
-Iminoboronates: Reversible Iminoboronates with Improved Stability for Cancer Cells Targeted Delivery. Chemistry 2018; 24:12495-12499. [DOI: 10.1002/chem.201802515] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Revised: 06/06/2018] [Indexed: 11/10/2022]
Affiliation(s)
- Ricardo M. R. M. Lopes
- Research Institute for Medicines (iMed.ULisboa); Faculty of Pharmacy; Universidade de Lisboa; Lisbon Portugal
| | - Ana E. Ventura
- Research Institute for Medicines (iMed.ULisboa); Faculty of Pharmacy; Universidade de Lisboa; Lisbon Portugal
- Centro de Química-Física Molecular and Institute of Nanoscience and Nanotechnology; Instituto Superior Técnico; Universidade de Lisboa; Lisboa Portugal
| | - Liana C. Silva
- Research Institute for Medicines (iMed.ULisboa); Faculty of Pharmacy; Universidade de Lisboa; Lisbon Portugal
- Centro de Química-Física Molecular and Institute of Nanoscience and Nanotechnology; Instituto Superior Técnico; Universidade de Lisboa; Lisboa Portugal
| | - Hélio Faustino
- Research Institute for Medicines (iMed.ULisboa); Faculty of Pharmacy; Universidade de Lisboa; Lisbon Portugal
| | - Pedro M. P. Gois
- Research Institute for Medicines (iMed.ULisboa); Faculty of Pharmacy; Universidade de Lisboa; Lisbon Portugal
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16
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Destito P, Couceiro JR, Faustino H, López F, Mascareñas JL. Ruthenium-Catalyzed Azide-Thioalkyne Cycloadditions in Aqueous Media: A Mild, Orthogonal, and Biocompatible Chemical Ligation. Angew Chem Int Ed Engl 2017; 56:10766-10770. [PMID: 28685950 PMCID: PMC5638077 DOI: 10.1002/anie.201705006] [Citation(s) in RCA: 77] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Revised: 06/25/2017] [Indexed: 12/22/2022]
Abstract
The development of efficient metal-promoted bioorthogonal ligations remains as a major scientific challenge. Demonstrated herein is that azides undergo efficient and regioselective room-temperature annulations with thioalkynes in aqueous milieu when treated with catalytic amounts of a suitable ruthenium complex. The reaction is compatible with different biomolecules, and can be carried out in complex aqueous mixtures such as phosphate buffered saline, cell lysates, fetal bovine serum, and even living bacteria (E. coli). Importantly, the reaction is mutually compatible with the classical CuAAC.
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Affiliation(s)
- Paolo Destito
- Centro Singular de Investigación en Química Biolóxica e Materiais, Moleculares (CIQUS)Departamento de Química OrgánicaUniversidade de Santiago de Compostela15782Santiago de CompostelaSpain
| | - José R. Couceiro
- Centro Singular de Investigación en Química Biolóxica e Materiais, Moleculares (CIQUS)Departamento de Química OrgánicaUniversidade de Santiago de Compostela15782Santiago de CompostelaSpain
| | - Hélio Faustino
- Centro Singular de Investigación en Química Biolóxica e Materiais, Moleculares (CIQUS)Departamento de Química OrgánicaUniversidade de Santiago de Compostela15782Santiago de CompostelaSpain
| | - Fernando López
- Centro Singular de Investigación en Química Biolóxica e Materiais, Moleculares (CIQUS)Departamento de Química OrgánicaUniversidade de Santiago de Compostela15782Santiago de CompostelaSpain
- Instituto de Química Orgánica General CSICJuan de la Cierva 328006MadridSpain
| | - José L. Mascareñas
- Centro Singular de Investigación en Química Biolóxica e Materiais, Moleculares (CIQUS)Departamento de Química OrgánicaUniversidade de Santiago de Compostela15782Santiago de CompostelaSpain
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17
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Destito P, Couceiro JR, Faustino H, López F, Mascareñas JL. Ruthenium-Catalyzed Azide-Thioalkyne Cycloadditions in Aqueous Media: A Mild, Orthogonal, and Biocompatible Chemical Ligation. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201705006] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Paolo Destito
- Centro Singular de Investigación en Química Biolóxica e Materiais, Moleculares (CIQUS); Departamento de Química Orgánica; Universidade de Santiago de Compostela; 15782 Santiago de Compostela Spain
| | - José R. Couceiro
- Centro Singular de Investigación en Química Biolóxica e Materiais, Moleculares (CIQUS); Departamento de Química Orgánica; Universidade de Santiago de Compostela; 15782 Santiago de Compostela Spain
| | - Hélio Faustino
- Centro Singular de Investigación en Química Biolóxica e Materiais, Moleculares (CIQUS); Departamento de Química Orgánica; Universidade de Santiago de Compostela; 15782 Santiago de Compostela Spain
| | - Fernando López
- Centro Singular de Investigación en Química Biolóxica e Materiais, Moleculares (CIQUS); Departamento de Química Orgánica; Universidade de Santiago de Compostela; 15782 Santiago de Compostela Spain
- Instituto de Química Orgánica General CSIC; Juan de la Cierva 3 28006 Madrid Spain
| | - José L. Mascareñas
- Centro Singular de Investigación en Química Biolóxica e Materiais, Moleculares (CIQUS); Departamento de Química Orgánica; Universidade de Santiago de Compostela; 15782 Santiago de Compostela Spain
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18
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Varela I, Faustino H, Díez E, Iglesias-Sigüenza J, Grande-Carmona F, Fernández R, Lassaletta JM, Mascareñas JL, López F. Gold(I)-Catalyzed Enantioselective [2+2+2] Cycloadditions: An Expedient Entry to Enantioenriched Tetrahydropyran Scaffolds. ACS Catal 2017. [DOI: 10.1021/acscatal.6b03651] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Iván Varela
- Centro
Singular de Investigación en Química Biolóxica
e Materiais Moleculares (CiQUS) and Departamento de Química
Orgánica, Universidad de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Hélio Faustino
- Centro
Singular de Investigación en Química Biolóxica
e Materiais Moleculares (CiQUS) and Departamento de Química
Orgánica, Universidad de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Elena Díez
- Departamento de
Química Orgánica, C/Prof.
García González, 1, 41012 Sevilla, Spain
| | | | | | - Rosario Fernández
- Departamento de
Química Orgánica, C/Prof.
García González, 1, 41012 Sevilla, Spain
| | - José M. Lassaletta
- Instituto
Investigaciones Químicas, CSIC-USe, Avda. Américo Vespucio, 49, 41092 Sevilla, Spain
| | - José L. Mascareñas
- Centro
Singular de Investigación en Química Biolóxica
e Materiais Moleculares (CiQUS) and Departamento de Química
Orgánica, Universidad de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Fernando López
- Centro
Singular de Investigación en Química Biolóxica
e Materiais Moleculares (CiQUS) and Departamento de Química
Orgánica, Universidad de Santiago de Compostela, 15782 Santiago de Compostela, Spain
- Instituto
de Química Orgánica General, CSIC, Juan de la Cierva
3, 28006 Madrid, Spain
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19
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Faustino H, Silva MJSA, Veiros LF, Bernardes GJL, Gois PMP. Iminoboronates are efficient intermediates for selective, rapid and reversible N-terminal cysteine functionalisation. Chem Sci 2016; 7:5052-5058. [PMID: 30155155 PMCID: PMC6018717 DOI: 10.1039/c6sc01520d] [Citation(s) in RCA: 88] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2016] [Accepted: 06/14/2016] [Indexed: 12/24/2022] Open
Abstract
We show that formyl benzeno boronic acids (2FBBA) selectively react with N-terminal cysteines to yield a boronated thiazolidine featuring a B-N bond. The reaction exhibits a very rapid constant rate (2.38 ± 0.23 × 102 M-1 s-1) under mild aqueous conditions (pH 7.4, 23 °C) and tolerates different amino acids at the position adjacent to the N-cysteine. DFT calculations highlighted the diastereoselective nature of this ligation reaction and support the involvement of the proximal boronic acid in the activation of the imine functionality and the stabilisation of the boronated thiazolidine through a chelate effect. The 2FBBA reagent allowed the effective functionalisation of model peptides (C-ovalbumin and a laminin fragment) and the boronated thiazolidine construct was shown to be stable over time, though the reaction was reversible in the presence of benzyl hydroxylamine. The reaction proved to be highly chemoselective, and 2FBBA was used to functionalize the N-terminal cysteine of calcitonin in the presence of a potentially competing in-chain thiol group. This exquisite selectivity profile enabled the dual functionalisation of calcitonin and the interactive orthogonal modification of this peptide when 2FBBA was combined with conventional maleimide chemistry. These results highlight the potential of this methodology to construct complex and well-defined bioconjugates.
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Affiliation(s)
- Hélio Faustino
- Research Institute for Medicines (iMed.ULisboa) , Faculty of Pharmacy , Universidade de Lisboa , Lisbon , Portugal .
| | - Maria J S A Silva
- Research Institute for Medicines (iMed.ULisboa) , Faculty of Pharmacy , Universidade de Lisboa , Lisbon , Portugal .
| | - Luís F Veiros
- Centro de Química Estrutural , Instituto Superior Técnico , Universidade de Lisboa , Av. Rovisco Pais 1 , 1049-001 Lisbon , Portugal
| | - Gonçalo J L Bernardes
- Department of Chemistry , University of Cambridge , Lensfield Road , CB2 1EW , Cambridge , UK
- Instituto de Medicina Molecular , Faculdade de Medicina , Universidade de Lisboa , Avenida Professor Egas Moniz , 1649-028 , Lisboa , Portugal
| | - Pedro M P Gois
- Research Institute for Medicines (iMed.ULisboa) , Faculty of Pharmacy , Universidade de Lisboa , Lisbon , Portugal .
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20
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Faustino H, Silva MJSA, Veiros LF, Bernardes GJL, Gois PMP. Correction: Iminoboronates are efficient intermediates for selective, rapid and reversible N-terminal cysteine functionalisation. Chem Sci 2016; 7:6280. [PMID: 30124674 PMCID: PMC6063149 DOI: 10.1039/c6sc90045c] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2016] [Accepted: 07/11/2016] [Indexed: 11/23/2022] Open
Abstract
Correction for ‘Iminoboronates are efficient intermediates for selective, rapid and reversible N-terminal cysteine functionalisation’ by Hélio Faustino et al., Chem. Sci., 2016, 7, 5052–5058.
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Affiliation(s)
- Hélio Faustino
- Research Institute for Medicines (iMed.ULisboa) , Faculty of Pharmacy , Universidade de Lisboa , Lisbon , Portugal .
| | - Maria J S A Silva
- Research Institute for Medicines (iMed.ULisboa) , Faculty of Pharmacy , Universidade de Lisboa , Lisbon , Portugal .
| | - Luís F Veiros
- Centro de Química Estrutural , Instituto Superior Técnico , Universidade de Lisboa , Av. Rovisco Pais 1 , 1049-001 Lisbon , Portugal
| | - Gonçalo J L Bernardes
- Department of Chemistry , University of Cambridge , Lensfield Road , CB2 1EW , Cambridge , UK.,Instituto de Medicina Molecular , Faculdade de Medicina , Universidade de Lisboa , Avenida Professor Egas Moniz , 1649-028 , Lisboa , Portugal
| | - Pedro M P Gois
- Research Institute for Medicines (iMed.ULisboa) , Faculty of Pharmacy , Universidade de Lisboa , Lisbon , Portugal .
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21
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Faustino H, Varela I, Mascareñas JL, López F. Gold(i)-catalyzed [2 + 2 + 2] cycloaddition of allenamides, alkenes and aldehydes: a straightforward approach to tetrahydropyrans. Chem Sci 2015; 6:2903-2908. [PMID: 29308168 PMCID: PMC5655898 DOI: 10.1039/c5sc00295h] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2015] [Accepted: 02/26/2015] [Indexed: 12/12/2022] Open
Abstract
A novel fully intermolecular gold-catalyzed [2 + 2 + 2] cycloaddition involving an allenamide, an alkene and an aldehyde provides a straightforward entry to tetrahydropyrans.
Allenamides participate as two-carbon components in an intermolecular [2 + 2 + 2] cycloaddition with alkenes and aldehydes when treated with catalytic amounts of a phosphite gold complex. The reaction is highly regio- and chemoselective, and works with different types of alkenes, including styrenes, enol ethers or enamides, as well as with aromatic and aliphatic aldehydes. Accordingly, different types of 2,6-disubstituted tetrahydropyrans can be stereoselectively assembled in a single step from commercial or very accessible starting materials.
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Affiliation(s)
- Hélio Faustino
- Centro Singular de Investigación en Química Biológica y Materiales Moleculares (CIQUS) and Departamento de Química Orgánica , Universidad de Santiago de Compostela , C/ Jenaro de la Fuente s/n , 15782 , Santiago de Compostela , Spain . ;
| | - Iván Varela
- Centro Singular de Investigación en Química Biológica y Materiales Moleculares (CIQUS) and Departamento de Química Orgánica , Universidad de Santiago de Compostela , C/ Jenaro de la Fuente s/n , 15782 , Santiago de Compostela , Spain . ;
| | - José L Mascareñas
- Centro Singular de Investigación en Química Biológica y Materiales Moleculares (CIQUS) and Departamento de Química Orgánica , Universidad de Santiago de Compostela , C/ Jenaro de la Fuente s/n , 15782 , Santiago de Compostela , Spain . ;
| | - Fernando López
- Centro Singular de Investigación en Química Biológica y Materiales Moleculares (CIQUS) and Departamento de Química Orgánica , Universidad de Santiago de Compostela , C/ Jenaro de la Fuente s/n , 15782 , Santiago de Compostela , Spain . ; .,Instituto de Química Orgánica General (CSIC) , Juan de la Cierva 3 , 28006 , Madrid , Spain
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22
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Bernal-Albert P, Faustino H, Gimeno A, Asensio G, Mascareñas JL, López F. Gold(I)-catalyzed intermolecular cycloaddition of allenamides with α,β-unsaturated hydrazones: efficient access to highly substituted cyclobutanes. Org Lett 2014; 16:6196-9. [PMID: 25406491 PMCID: PMC4304836 DOI: 10.1021/ol503121q] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
α,β-Unsaturated N,N-dialkyl hydrazones undergo a mild [2 + 2] cycloaddition to allenamides when treated with a suitable gold catalyst. The method, which represents the first application of N,N-dialkyl hydrazones in gold catalysis, is compatible with a wide variety of substituents at the alkenyl moiety of the hydrazone component, proceeds with excellent levels of regio- and diastereoselectivity, and provides densely substituted cyclobutanes with good to excellent yields.
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Affiliation(s)
- Paloma Bernal-Albert
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica, Universidad de Santiago de Compostela , 15782, Santiago de Compostela, Spain
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Montserrat S, Faustino H, Lledós A, Mascareñas JL, López F, Ujaque G. Mechanistic intricacies of gold-catalyzed intermolecular cycloadditions between allenamides and dienes. Chemistry 2013; 19:15248-60. [PMID: 24114995 DOI: 10.1002/chem.201302330] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2013] [Indexed: 11/07/2022]
Abstract
The mechanism of the gold-catalyzed intermolecular cycloaddition between allenamides and 1,3-dienes has been explored by means of a combined experimental and computational approach. The formation of the major [4+2] cycloaddition products can be explained by invoking different pathways, the preferred ones being determined by the nature of the diene (electron neutral vs. electron rich) and the type of the gold catalyst (AuCl vs. [IPrAu](+), IPr=1,3-bis(2,6-diisopropylphenyl)imidazole-2-ylidene). Therefore, in reactions catalyzed by AuCl, electron-neutral dienes favor a concerted [4+3] cycloaddition followed by a ring contraction event, whereas electron-rich dienes prefer a stepwise cationic pathway to give the same type of formal [4+2] products. On the other hand, the theoretical data suggest that by using a cationic gold catalyst, such as [IPrAuCl]/AgSbF6, the mechanism involves a direct [4+2] cycloaddition between the diene and the gold-activated allenamide. The theoretical data are also consistent with the observed regioselectivity as well as with the high selectivity towards the formation of the enamide products with a Z configuration. Finally, our data also explain the formation of the minor [2+2] products that are obtained in certain cases.
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Affiliation(s)
- Sergi Montserrat
- Departament de Química, Universitat Autònoma de Barcelona, 08193 Bellaterra, Barcelona (Spain)
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Faustino H, Alonso I, Mascareñas JL, López F. Gold(I)-Catalyzed Cascade Cycloadditions between Allenamides and Carbonyl-Tethered Alkenes: An Enantioselective Approach to Oxa-Bridged Medium-Sized Carbocycles. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201302713] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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25
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Faustino H, Alonso I, Mascareñas JL, López F. Gold(I)-Catalyzed Cascade Cycloadditions between Allenamides and Carbonyl-Tethered Alkenes: An Enantioselective Approach to Oxa-Bridged Medium-Sized Carbocycles. Angew Chem Int Ed Engl 2013; 52:6526-30. [DOI: 10.1002/anie.201302713] [Citation(s) in RCA: 87] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2013] [Indexed: 11/06/2022]
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Francos J, Grande-Carmona F, Faustino H, Iglesias-Sigüenza J, Díez E, Alonso I, Fernández R, Lassaletta JM, López F, Mascareñas JL. Axially chiral triazoloisoquinolin-3-ylidene ligands in gold(I)-catalyzed asymmetric intermolecular (4 + 2) cycloadditions of allenamides and dienes. J Am Chem Soc 2012; 134:14322-5. [PMID: 22892048 DOI: 10.1021/ja3065446] [Citation(s) in RCA: 154] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
The first highly enantioselective intermolecular (4 + 2) cycloaddition between allenes and dienes is reported. The reaction provides good yields of optically active cyclohexenes featuring diverse substitution patterns and up to three stereocenters. Key to the success of the process is the use of newly designed axially chiral N-heterocyclic carbene-gold catalysts.
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Affiliation(s)
- Javier Francos
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares and Departamento de Química Orgánica, Unidad Asociada al CSIC, Universidad de Santiago de Compostela, 15782, Santiago de Compostela, Spain
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Faustino H, Bernal P, Castedo L, López F, Mascareñas JL. Gold(I)-Catalyzed Intermolecular [2+2] Cycloadditions between Allenamides and Alkenes. Adv Synth Catal 2012. [DOI: 10.1002/adsc.201200047] [Citation(s) in RCA: 91] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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28
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Alonso I, Faustino H, López F, Mascareñas JL. Enantioselective gold(I)-catalyzed intramolecular (4+3) cycloadditions of allenedienes. Angew Chem Int Ed Engl 2011; 50:11496-500. [PMID: 21997962 DOI: 10.1002/anie.201105815] [Citation(s) in RCA: 91] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2011] [Indexed: 11/05/2022]
Affiliation(s)
- Isaac Alonso
- Departamento de Química Orgánica, Centro Singular de Investigación en Química Biológica y Materiales Moleculares y Unidad Asociada al CSIC, Universidad de Santiago de Compostela, Santiago de Compostela, Spain
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29
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Alonso I, Faustino H, López F, Mascareñas JL. Enantioselective Gold(I)-Catalyzed Intramolecular (4+3) Cycloadditions of Allenedienes. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201105815] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Faustino H, López F, Castedo L, Mascareñas JL. Gold(i)-catalyzed intermolecular (4 + 2) cycloaddition of allenamides and acyclic dienes. Chem Sci 2011. [DOI: 10.1039/c0sc00630k] [Citation(s) in RCA: 81] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Alves MJ, Duarte VC, Faustino H, Fortes AG. Diastereo-controlled Diels–Alder cycloadditions of erythrose benzylidene-acetal 1,3-butadienes by 4-substituted-1,2,4-triazoline-3,5-dione: Evidence for the stereoelectronic effects on the dienes. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.tetasy.2010.05.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Faustino H, El-Shishtawy RM, Reis LV, Santos PF, Almeida P. 2-Nitrosobenzothiazoles: useful synthons for new azobenzothiazole dyes. Tetrahedron Lett 2008. [DOI: 10.1016/j.tetlet.2008.09.096] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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