1
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Eras A, Castillo D, Suárez M, Vispo NS, Albericio F, Rodriguez H. Chemical Conjugation in Drug Delivery Systems. Front Chem 2022; 10:889083. [PMID: 35720996 PMCID: PMC9204480 DOI: 10.3389/fchem.2022.889083] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Accepted: 04/11/2022] [Indexed: 11/18/2022] Open
Abstract
Cancer is one of the diseases with the highest mortality rate. Treatments to mitigate cancer are usually so intense and invasive that they weaken the patient to cure as dangerous as the own disease. From some time ago until today, to reduce resistance generated by the constant administration of the drug and improve its pharmacokinetics, scientists have been developing drug delivery system (DDS) technology. DDS platforms aim to maximize the drugs’ effectiveness by directing them to reach the affected area by the disease and, therefore, reduce the potential side effects. Erythrocytes, antibodies, and nanoparticles have been used as carriers. Eleven antibody–drug conjugates (ADCs) involving covalent linkage has been commercialized as a promising cancer treatment in the last years. This review describes the general features and applications of DDS focused on the covalent conjugation system that binds the antibody carrier to the cytotoxic drug.
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Affiliation(s)
- Alexis Eras
- School of Chemical Sciences and Engineering, Yachay Tech University, Urcuquí, Ecuador
| | - Danna Castillo
- School of Chemical Sciences and Engineering, Yachay Tech University, Urcuquí, Ecuador
| | - Margarita Suárez
- Laboratorio de Síntesis Orgánica, Facultad de Química, Universidad de la Habana, La Habana, Cuba
| | - Nelson Santiago Vispo
- School of Biological Sciences and Engineering, Yachay Tech University, Urcuquí, Ecuador
- *Correspondence: Nelson Santiago Vispo, ; Fernando Albericio, ; Hortensia Rodriguez,
| | - Fernando Albericio
- Department of Surfactants and Nanobiotechnology, Institute for Advanced Chemistry of Catalonia (IQAC-CSIC), Barcelona, Spain
- CIBER-BBN, Networking Centre of Bioengineering, Biomaterials, and Nanomedicine and Department of Organic Chemistry, University of Barcelona, Barcelona, Spain
- School of Chemistry and Physics, University of KwaZulu-Natal, Durban, South Africa
- *Correspondence: Nelson Santiago Vispo, ; Fernando Albericio, ; Hortensia Rodriguez,
| | - Hortensia Rodriguez
- School of Chemical Sciences and Engineering, Yachay Tech University, Urcuquí, Ecuador
- *Correspondence: Nelson Santiago Vispo, ; Fernando Albericio, ; Hortensia Rodriguez,
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2
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Liu C, Song L, Peshkov VA, Van der Eycken EV. Facile construction of peptidomimetics by sequential C–S/C–N bond activation of Ugi-adducts. Org Chem Front 2021. [DOI: 10.1039/d1qo01438b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Diverse peptidomimetics containing a primary amide are prepared via the integration of an Ugi-4CR and sequential C–S/C–N bond activation.
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Affiliation(s)
- Chao Liu
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC), Department of Chemistry, KU Leuven Celestijnenlaan 200F, 3001, Leuven, Belgium
| | - Liangliang Song
- Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-Forest Biomass, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Jiangsu Key Lab of Biomass-Based Green Fuels and Chemicals, International Innovation Center for Forest Chemicals and Materials, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, Jiangsu, China
| | - Vsevolod A. Peshkov
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Dushu Lake Campus, Suzhou 215123, P. R. China
- Department of Chemistry, School of Sciences and Humanities, Nazarbayev University, 53 Kabanbay Batyr Ave, Nur-Sultan 010000, Republic of Kazakhstan
| | - Erik V. Van der Eycken
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC), Department of Chemistry, KU Leuven Celestijnenlaan 200F, 3001, Leuven, Belgium
- Peoples’ Friendship University of Russia (RUDN University), Miklukho-Maklaya Street 6, Moscow, 117198, Russia
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3
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Muramatsu W, Manthena C, Nakashima E, Yamamoto H. Peptide Bond-Forming Reaction via Amino Acid Silyl Esters: New Catalytic Reactivity of an Aminosilane. ACS Catal 2020. [DOI: 10.1021/acscatal.0c02512] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Wataru Muramatsu
- Molecular Catalyst Research Center, Chubu University, 1200 Matsumoto-cho, Kasugai, Aichi 487-8501, Japan
| | - Chaitanya Manthena
- Molecular Catalyst Research Center, Chubu University, 1200 Matsumoto-cho, Kasugai, Aichi 487-8501, Japan
| | - Erika Nakashima
- Molecular Catalyst Research Center, Chubu University, 1200 Matsumoto-cho, Kasugai, Aichi 487-8501, Japan
| | - Hisashi Yamamoto
- Molecular Catalyst Research Center, Chubu University, 1200 Matsumoto-cho, Kasugai, Aichi 487-8501, Japan
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4
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Budragchaa T, Westermann B, Wessjohann LA. Multicomponent synthesis of α-acylamino and α-acyloxy amide derivatives of desmycosin and their activity against gram-negative bacteria. Bioorg Med Chem 2019; 27:3237-3247. [PMID: 31229422 DOI: 10.1016/j.bmc.2019.05.046] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 03/27/2019] [Accepted: 05/29/2019] [Indexed: 11/17/2022]
Abstract
Bacterial resistance to the existing drugs requires constant development of new antibiotics. Developing compounds active against gram-negative bacteria thereby is one of the more challenging tasks. Among the many approaches to develop successful antibacterials, medicinal chemistry driven evolution of existing successful antibiotics is considered to be the most effective one. Towards this end, the C-20 aldehyde moiety of desmycosin was modified into α-acylamino and α-acyloxy amide functionalities using isonitrile-based Ugi and Passerini reactions, aiming for enhanced antibacterial and physicochemical properties. The desired compounds were obtained in 45-93% yield under mild conditions. The antibacterial activity of the resulting conjugates was tested against gram-negative Aliivibrio fischeri. The antibiotic strength is mostly governed by the amine component introduced. Thus, methylamine derived desmycosin bis-amide 4 displayed an enhanced inhibition rate vs. desmycosin (99% vs. 83% at 1 µM). Derivatives with long acyclic or bulky amine and isocyanide Ugi components reduced potency, whereas carboxylic acid reagents with longer chain length afforded increased bioactivity. In Passerini 3-component products, the butyric ester amide 22 displayed a higher activity (90% at 1 µM) than the parent compound desmycosin (2).
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Affiliation(s)
- Tuvshinjargal Budragchaa
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, Weinberg 3, 06120 Halle, Saale, Germany
| | - Bernhard Westermann
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, Weinberg 3, 06120 Halle, Saale, Germany; Institute of Organic Chemistry, Faculty of Natural Sciences II, Martin-Luther-University Halle-Wittenberg, Kurt-Mothes-Strasse 2, 06120 Halle, Germany
| | - Ludger A Wessjohann
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, Weinberg 3, 06120 Halle, Saale, Germany; Institute of Organic Chemistry, Faculty of Natural Sciences II, Martin-Luther-University Halle-Wittenberg, Kurt-Mothes-Strasse 2, 06120 Halle, Germany.
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5
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Gazzotti S, Rainoldi G, Silvani A. Exploitation of the Ugi–Joullié reaction in drug discovery and development. Expert Opin Drug Discov 2019; 14:639-652. [DOI: 10.1080/17460441.2019.1604676] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Stefano Gazzotti
- Dipartimento di Chimica, Università degli Studi di Milano, Milano, Italy
| | - Giulia Rainoldi
- Dipartimento di Chimica, Università degli Studi di Milano, Milano, Italy
| | - Alessandra Silvani
- Dipartimento di Chimica, Università degli Studi di Milano, Milano, Italy
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6
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Reguera L, Rivera DG. Multicomponent Reaction Toolbox for Peptide Macrocyclization and Stapling. Chem Rev 2019; 119:9836-9860. [PMID: 30990310 DOI: 10.1021/acs.chemrev.8b00744] [Citation(s) in RCA: 191] [Impact Index Per Article: 38.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
In the past decade, multicomponent reactions have experienced a renaissance as powerful peptide macrocyclization tools enabling the rapid creation of skeletal complexity and diversity with low synthetic cost. This review provides both a historical and modern overview of the development of the peptide multicomponent macrocyclization as a strategy capable to compete with the classic peptide cyclization methods in terms of chemical efficiency and synthetic scope. We prove that the utilization of multicomponent reactions for cyclizing peptides by either their termini or side chains provides a key advantage over those more established methods; that is, the possibility to explore the cyclic peptide chemotype space not only at the amino acid sequence but also at the ring-forming moiety. Owing to its multicomponent nature, this type of peptide cyclization process is well-suited to generate diversity at both the endo- and exo-cyclic fragments formed during the ring-closing step, which stands as a distinctive and useful characteristic for the creation and screening of cyclic peptide libraries. Examples of the novel multicomponent peptide stapling approach and heterocycle ring-forming macrocyclizations are included, along with multicomponent methods incorporating macrocyclization handles and the one-pot syntheses of macromulticyclic peptide cages. Interesting applications of this strategy in the field of drug discovery and chemical biology are provided.
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Affiliation(s)
- Leslie Reguera
- Center for Natural Product Research, Faculty of Chemistry , University of Havana , Zapata y G , Havana 10400 , Cuba
| | - Daniel G Rivera
- Center for Natural Product Research, Faculty of Chemistry , University of Havana , Zapata y G , Havana 10400 , Cuba
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7
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Kufka R, Rennert R, Kaluđerović GN, Weber L, Richter W, Wessjohann LA. Synthesis of a tubugi-1-toxin conjugate by a modulizable disulfide linker system with a neuropeptide Y analogue showing selectivity for hY1R-overexpressing tumor cells. Beilstein J Org Chem 2019; 15:96-105. [PMID: 30680044 PMCID: PMC6334802 DOI: 10.3762/bjoc.15.11] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Accepted: 11/21/2018] [Indexed: 12/15/2022] Open
Abstract
Tubugi-1 is a small cytotoxic peptide with picomolar cytotoxicity. To improve its cancer cell targeting, it was conjugated using a universal, modular disulfide derivative. This allowed conjugation to a neuropeptide-Y (NPY)-inspired peptide [K4(C-βA-),F7,L17,P34]-hNPY, acting as NPY Y1 receptor (hY1R)-targeting peptide, to form a tubugi-1–SS–NPY disulfide-linked conjugate. The cytotoxic impacts of the novel tubugi-1–NPY peptide–toxin conjugate, as well as of free tubugi-1, and tubugi-1 bearing the thiol spacer (liberated from tubugi-1–NPY conjugate), and native tubulysin A as reference were investigated by in vitro cell viability and proliferation screenings. The tumor cell lines HT-29, Colo320 (both colon cancer), PC-3 (prostate cancer), and in conjunction with RT-qPCR analyses of the hY1R expression, the cell lines SK-N-MC (Ewing`s sarcoma), MDA-MB-468, MDA-MB-231 (both breast cancer) and 184B5 (normal breast; chemically transformed) were investigated. As hoped, the toxicity of tubugi-1 was masked, with IC50 values decreased by ca. 1,000-fold compared to the free toxin. Due to intracellular linker cleavage, the cytotoxic potency of the liberated tubugi-1 that, however, still bears the thiol spacer (tubugi-1-SH) was restored and up to 10-fold higher compared to the entire peptide–toxin conjugate. The conjugate shows toxic selectivity to tumor cell lines overexpressing the hY1R receptor subtype like, e.g., the hard to treat triple-negative breast cancer MDA-MB-468 cells.
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Affiliation(s)
- Rainer Kufka
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, Weinberg 3, D-06120 Halle (Saale), Germany
| | - Robert Rennert
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, Weinberg 3, D-06120 Halle (Saale), Germany.,OntoChem GmbH, Blücherstr. 24, D-06120 Halle (Saale), Germany
| | - Goran N Kaluđerović
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, Weinberg 3, D-06120 Halle (Saale), Germany
| | - Lutz Weber
- OntoChem GmbH, Blücherstr. 24, D-06120 Halle (Saale), Germany
| | | | - Ludger A Wessjohann
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, Weinberg 3, D-06120 Halle (Saale), Germany
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8
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Reguera L, Méndez Y, Humpierre AR, Valdés O, Rivera DG. Multicomponent Reactions in Ligation and Bioconjugation Chemistry. Acc Chem Res 2018; 51:1475-1486. [PMID: 29799718 DOI: 10.1021/acs.accounts.8b00126] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Multicomponent reactions (MCRs) encompass an exciting class of chemical transformations that have proven success in almost all fields of synthetic organic chemistry. These convergent procedures incorporate three or more reactants into a final product in one pot, thus combining high levels of complexity and diversity generation with low synthetic cost. Striking applications of these processes are found in heterocycle, peptidomimetic, and natural product syntheses. However, their potential in the preparation of large macro- and biomolecular constructs has been realized just recently. This Account describes the most relevant results of our group in the utilization of MCRs for ligation/conjugation of biomolecules along with significant contributions from other laboratories that validate the utility of this special class of bioconjugation process. Thus, MCRs have proven to be efficient in the ligation of lipids to peptides and oligosaccharides as well as the ligation of steroids, carbohydrates, and fluorescent and affinity tags to peptides and proteins. In the field of glycolipids, we highlight the power of isocyanide-based MCRs with the one-pot double lipidation of glycan fragments functionalized as either the carboxylic acid or amine. In peptide chemistry, the versatility of the multicomponent ligation strategy is demonstrated in both solution-phase lipidation protocols and solid-phase procedures enabling the simultaneous lipidation and biotinylation of peptides. In addition, we show that MCRs are powerful methods for synchronized lipidation/labeling and macrocyclization of peptides, thus accomplishing in one step what usually requires long sequences. In the realm of protein bioconjugation, MCRs have also proven to be effective in labeling, site-selective modification, immobilization, and glycoconjugation processes. For example, we illustrate a successful application of multicomponent polysaccharide-protein conjugation with the preparation of multivalent glycoconjugate vaccine candidates by the ligation of two antigenic capsular polysaccharides of a pathogenic bacterium to carrier proteins. By highlighting the ability to join several biomolecules in only one synthetic operation, we hope to encourage the biomolecular chemistry community to apply this powerful chemistry to novel biomedicinal challenges.
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Affiliation(s)
- Leslie Reguera
- Center for Natural Products Research, Faculty of Chemistry, University of Havana, Zapata y G, Havana 10400, Cuba
| | - Yanira Méndez
- Center for Natural Products Research, Faculty of Chemistry, University of Havana, Zapata y G, Havana 10400, Cuba
| | - Ana R. Humpierre
- Center for Natural Products Research, Faculty of Chemistry, University of Havana, Zapata y G, Havana 10400, Cuba
| | - Oscar Valdés
- Vicerrectoría de Investigación y Postgrado, Universidad Católica del Maule, Talca 3460000, Chile
| | - Daniel G. Rivera
- Center for Natural Products Research, Faculty of Chemistry, University of Havana, Zapata y G, Havana 10400, Cuba
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9
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Ravanello BB, Seixas N, Rodrigues OED, da Silva RS, Villetti MA, Frolov A, Rivera DG, Westermann B. Diversity Driven Decoration and Ligation of Fullerene by Ugi and Passerini Multicomponent Reactions. Chemistry 2018; 24:9788-9793. [DOI: 10.1002/chem.201802414] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Indexed: 12/30/2022]
Affiliation(s)
- Bruno B. Ravanello
- Department of Bioorganic Chemistry; Leibniz-Institute of Plant Biochemistry; Weinberg 3 06120 Halle Germany
| | - Nalin Seixas
- Department of Bioorganic Chemistry; Leibniz-Institute of Plant Biochemistry; Weinberg 3 06120 Halle Germany
| | - Oscar E. D. Rodrigues
- LabSelen-NanoBio-Departamento de Química; Universidade Federal de Santa Maria; CEP 97105-900 Santa Maria, Rio Grande do Sul Brazil
| | - Rafael S. da Silva
- LabSelen-NanoBio-Departamento de Química; Universidade Federal de Santa Maria; CEP 97105-900 Santa Maria, Rio Grande do Sul Brazil
| | - Marcos A. Villetti
- Spectroscopy and Polymers Laboratory (LEPOL); Department of Physics; Universidade Federal de Santa Maria; CEP 97105-900 Santa Maria, Rio Grande do Sul Brazil
| | - Andrej Frolov
- Department of Bioorganic Chemistry; Leibniz-Institute of Plant Biochemistry; Weinberg 3 06120 Halle Germany
| | - Daniel G. Rivera
- Department of Bioorganic Chemistry; Leibniz-Institute of Plant Biochemistry; Weinberg 3 06120 Halle Germany
- Center for Natural Products Research; Faculty of Chemistry; University of Havana; Havana 10400 Cuba
| | - Bernhard Westermann
- Department of Bioorganic Chemistry; Leibniz-Institute of Plant Biochemistry; Weinberg 3 06120 Halle Germany
- Institute of Chemistry; Martin-Luther-University Halle-Wittenberg; Kurt-Mothes-Str. 2 06120 Halle Germany
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10
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Kaluđerović GN, Abbas M, Kautz HC, Wadaan MAM, Lennicke C, Seliger B, Wessjohann LA. Methionine and seleno-methionine type peptide and peptoid building blocks synthesized by five-component five-center reactions. Chem Commun (Camb) 2018; 53:3777-3780. [PMID: 28304024 DOI: 10.1039/c7cc00399d] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A first example of 5-component 5-center reactions with isonitriles [Ugi-5CRs] is described. The extended Ugi type reactions involve selenoaldehydes as well as ammonia, both challenging reactants in multicomponent (MCR) systems, to generate methionine and Se-methionine moieties and derivatives as protected building blocks or for direct ligation in peptides or peptoids. The peptoid/peptide building blocks proved to be non-cytotoxic but increased the expression of genes encoding for stress protective selenoproteins (Gpx1).
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Affiliation(s)
- Goran N Kaluđerović
- Leibniz-Institute of Plant Biochemistry, Bioorganic Chemistry, Weinberg 3, 06120, Halle (Saale), Germany.
| | - Muhammad Abbas
- Leibniz-Institute of Plant Biochemistry, Bioorganic Chemistry, Weinberg 3, 06120, Halle (Saale), Germany. and Chair of Advanced Proteomics and Cytomics Research, Faculty of Science - Department of Zoology, King Saud University, P.O. Box 2455, 11415 Riyadh, Saudi Arabia
| | - Hans Christian Kautz
- Leibniz-Institute of Plant Biochemistry, Bioorganic Chemistry, Weinberg 3, 06120, Halle (Saale), Germany.
| | - Mohammad A M Wadaan
- Chair of Advanced Proteomics and Cytomics Research, Faculty of Science - Department of Zoology, King Saud University, P.O. Box 2455, 11415 Riyadh, Saudi Arabia
| | - Claudia Lennicke
- Institute of Medical Immunology, Martin-Luther-University Halle-Wittenberg, Magdeburger Str. 2, 06112, Halle (Saale), Germany
| | - Barbara Seliger
- Institute of Medical Immunology, Martin-Luther-University Halle-Wittenberg, Magdeburger Str. 2, 06112, Halle (Saale), Germany
| | - Ludger A Wessjohann
- Leibniz-Institute of Plant Biochemistry, Bioorganic Chemistry, Weinberg 3, 06120, Halle (Saale), Germany.
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11
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Jobin S, Méjean A, Galindo SM, Liang X, Vézina-Dawod S, Biron E. Toward solid-phase peptide fragment ligation by a traceless-Ugi multicomponent reaction approach. Org Biomol Chem 2018; 14:11230-11237. [PMID: 27841889 DOI: 10.1039/c6ob02342h] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A new methodology to couple peptide fragments on solid support using a traceless isocyanide-based multicomponent reaction is described. The approach uses a microwave-assisted on-resin Ugi four-component reaction to attach a carboxyl free peptide to a supported peptide bearing a free N-terminal amine via the formation of an N-protected amide bond at the ligation site. Afterward, the generated backbone amide protecting group can be efficiently removed by microwave-assisted acidolysis with trifluoroacetic acid to afford a fully deprotected peptide. This straightforward Ugi reaction/deprotection approach was applied to condense various fragment lengths and provided a variety of oligopeptides.
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Affiliation(s)
- Steve Jobin
- Faculty of Pharmacy, Université Laval and Laboratory of Medicinal Chemistry, Centre de recherche du Centre Hospitalier Universitaire de Québec, Québec (QC) G1V 4G2, Canada.
| | - Alexia Méjean
- Faculty of Pharmacy, Université Laval and Laboratory of Medicinal Chemistry, Centre de recherche du Centre Hospitalier Universitaire de Québec, Québec (QC) G1V 4G2, Canada.
| | - Sindy-Marcela Galindo
- Faculty of Pharmacy, Université Laval and Laboratory of Medicinal Chemistry, Centre de recherche du Centre Hospitalier Universitaire de Québec, Québec (QC) G1V 4G2, Canada.
| | - Xinxia Liang
- Faculty of Pharmacy, Université Laval and Laboratory of Medicinal Chemistry, Centre de recherche du Centre Hospitalier Universitaire de Québec, Québec (QC) G1V 4G2, Canada.
| | - Simon Vézina-Dawod
- Faculty of Pharmacy, Université Laval and Laboratory of Medicinal Chemistry, Centre de recherche du Centre Hospitalier Universitaire de Québec, Québec (QC) G1V 4G2, Canada.
| | - Eric Biron
- Faculty of Pharmacy, Université Laval and Laboratory of Medicinal Chemistry, Centre de recherche du Centre Hospitalier Universitaire de Québec, Québec (QC) G1V 4G2, Canada.
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12
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Jida M, Ballet S. An Efficient One-Pot Synthesis of Chiral N-Protected 3-Substituted (Diketo)piperazines via Ugi-4CR/De-Boc/Cyclization Process. ChemistrySelect 2018. [DOI: 10.1002/slct.201702943] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Mouhamad Jida
- Research Group of Organic Chemistry; Departments of Chemistry and Bioengineering Sciences; Vrije Universiteit Brussel; Pleinlaan 2 B-1050 Brussels Belgium
| | - Steven Ballet
- Research Group of Organic Chemistry; Departments of Chemistry and Bioengineering Sciences; Vrije Universiteit Brussel; Pleinlaan 2 B-1050 Brussels Belgium
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13
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Jida M, Ballet S. Efficient one-pot synthesis of enantiomerically pure N-protected-α-substituted piperazines from readily available α-amino acids. NEW J CHEM 2018. [DOI: 10.1039/c7nj04039c] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new pathway towards enantiomerically pure 3-substituted piperazines, bearing a benzyl protecting group, has been developed in good overall yields (83–92%), starting from commercially available N-protected amino acids.
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Affiliation(s)
- Mouhamad Jida
- Research Group of Organic Chemistry
- Departments of Chemistry and Bioengineering Sciences
- Vrije Universiteit Brussel
- Brussels
- Belgium
| | - Steven Ballet
- Research Group of Organic Chemistry
- Departments of Chemistry and Bioengineering Sciences
- Vrije Universiteit Brussel
- Brussels
- Belgium
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14
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Chandgude AL, Li J, Dömling A. 2-Nitrobenzyl Isocyanide as a Universal Convertible Isocyanide. ASIAN J ORG CHEM 2017; 6:798-801. [PMID: 31236321 PMCID: PMC6590691 DOI: 10.1002/ajoc.201700177] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Indexed: 11/12/2022]
Abstract
2-Nitrobenzyl isocyanide is reported as a universal convertible isocyanide with extensive applicability in both Ugi four-component reaction (Ugi-4CR) and Ugi-tetrazole reaction. The cleavage of this isocyanide from 17 examples in both acidic and basic conditions is presented. Additionally, this isocyanide has various handling and synthetic advantages, as it is easy to prepare, odorless, stable, and easy to handle as a solid.
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Affiliation(s)
- Ajay L Chandgude
- Department of Drug Design, University of Groningen, Antonius Deusinglaan 1, 9713 AV Groningen (The Netherlands)
| | - Jingyao Li
- Department of Drug Design, University of Groningen, Antonius Deusinglaan 1, 9713 AV Groningen (The Netherlands)
| | - Alexander Dömling
- Department of Drug Design, University of Groningen, Antonius Deusinglaan 1, 9713 AV Groningen (The Netherlands)
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15
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Echemendía R, Fernández O, Coro J, Suárez M, Rivera DG. A versatile approach to hybrid thiadiazine-based molecules by the Ugi four-component reaction. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.03.075] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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16
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Sultani HN, Haeri HH, Hinderberger D, Westermann B. Spin-labelled diketopiperazines and peptide-peptoid chimera by Ugi-multi-component-reactions. Org Biomol Chem 2016; 14:11336-11341. [PMID: 27878155 DOI: 10.1039/c6ob02194h] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
For the first time, spin-labelled coumpounds have been obtained by isonitrile-based multi component reactions (IMCRs). The typical IMCR Ugi-protocols offer a simple experimental setup allowing structural variety by which labelled diketopiperazines (DKPs) and peptide-peptoid chimera have been synthesized. The reaction keeps the paramagnetic spin label intact and offers a simple and versatile route to a large variety of new and chemically diverse spin labels.
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Affiliation(s)
- Haider N Sultani
- Leibniz-Institute of Plant Biochemistry, Department of Bioorganic Chemistry, Weinberg 3, 06120 Halle, Germany.
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