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Ferrer‐Gago FJ, Koh LQ. Synthesis of
C‐terminal
glycine‐rich
o
‐aminoanilide
peptides without overacylation for use in
benzotriazole‐mediated
native chemical ligation. Pept Sci (Hoboken) 2020. [DOI: 10.1002/pep2.24194] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Fernando J. Ferrer‐Gago
- p53 Laboratory Agency for Science Technology and Research (A*STAR), 8A Biomedical Grove #06‐04/05 Neuro/Immunos 138648 Singapore
| | - Li Quan Koh
- p53 Laboratory Agency for Science Technology and Research (A*STAR), 8A Biomedical Grove #06‐04/05 Neuro/Immunos 138648 Singapore
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2
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Agouridas V, El Mahdi O, Diemer V, Cargoët M, Monbaliu JCM, Melnyk O. Native Chemical Ligation and Extended Methods: Mechanisms, Catalysis, Scope, and Limitations. Chem Rev 2019; 119:7328-7443. [DOI: 10.1021/acs.chemrev.8b00712] [Citation(s) in RCA: 243] [Impact Index Per Article: 48.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Vangelis Agouridas
- UMR CNRS 8204, Centre d’Immunité et d’Infection de Lille, University of Lille, CNRS, Institut Pasteur de Lille, F-59000 Lille, France
| | - Ouafâa El Mahdi
- Faculté Polydisciplinaire de Taza, University Sidi Mohamed Ben Abdellah, BP 1223 Taza Gare, Morocco
| | - Vincent Diemer
- UMR CNRS 8204, Centre d’Immunité et d’Infection de Lille, University of Lille, CNRS, Institut Pasteur de Lille, F-59000 Lille, France
| | - Marine Cargoët
- UMR CNRS 8204, Centre d’Immunité et d’Infection de Lille, University of Lille, CNRS, Institut Pasteur de Lille, F-59000 Lille, France
| | - Jean-Christophe M. Monbaliu
- Center for Integrated Technology and Organic Synthesis, Department of Chemistry, University of Liège, Building B6a, Room 3/16a, Sart-Tilman, B-4000 Liège, Belgium
| | - Oleg Melnyk
- UMR CNRS 8204, Centre d’Immunité et d’Infection de Lille, University of Lille, CNRS, Institut Pasteur de Lille, F-59000 Lille, France
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3
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De Bo G, Gall MAY, Kitching MO, Kuschel S, Leigh DA, Tetlow DJ, Ward JW. Sequence-Specific β-Peptide Synthesis by a Rotaxane-Based Molecular Machine. J Am Chem Soc 2017; 139:10875-10879. [DOI: 10.1021/jacs.7b05850] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Guillaume De Bo
- School of Chemistry, University of Manchester, Oxford Road, Manchester, M13 9PL, United Kingdom
| | - Malcolm A. Y. Gall
- School of Chemistry, University of Manchester, Oxford Road, Manchester, M13 9PL, United Kingdom
| | - Matthew O. Kitching
- School of Chemistry, University of Manchester, Oxford Road, Manchester, M13 9PL, United Kingdom
| | - Sonja Kuschel
- School of Chemistry, University of Manchester, Oxford Road, Manchester, M13 9PL, United Kingdom
| | - David A. Leigh
- School of Chemistry, University of Manchester, Oxford Road, Manchester, M13 9PL, United Kingdom
| | - Daniel J. Tetlow
- School of Chemistry, University of Manchester, Oxford Road, Manchester, M13 9PL, United Kingdom
| | - John W. Ward
- School of Chemistry, University of Manchester, Oxford Road, Manchester, M13 9PL, United Kingdom
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4
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Abstract
The present review offers an overview of nonclassical (e.g., with no pre- or in situ activation of a carboxylic acid partner) approaches for the construction of amide bonds. The review aims to comprehensively discuss relevant work, which was mainly done in the field in the last 20 years. Organization of the data follows a subdivision according to substrate classes: catalytic direct formation of amides from carboxylic and amines ( section 2 ); the use of carboxylic acid surrogates ( section 3 ); and the use of amine surrogates ( section 4 ). The ligation strategies (NCL, Staudinger, KAHA, KATs, etc.) that could involve both carboxylic acid and amine surrogates are treated separately in section 5 .
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Affiliation(s)
- Renata Marcia de Figueiredo
- Institut Charles Gerhardt de Montpellier (ICGM), UMR 5253-CNRS-UM-ENSCM, Ecole Nationale Supérieure de Chimie , 8 rue de l'Ecole Normale, 34296 Montpellier Cedex 5, France
| | - Jean-Simon Suppo
- Institut Charles Gerhardt de Montpellier (ICGM), UMR 5253-CNRS-UM-ENSCM, Ecole Nationale Supérieure de Chimie , 8 rue de l'Ecole Normale, 34296 Montpellier Cedex 5, France
| | - Jean-Marc Campagne
- Institut Charles Gerhardt de Montpellier (ICGM), UMR 5253-CNRS-UM-ENSCM, Ecole Nationale Supérieure de Chimie , 8 rue de l'Ecole Normale, 34296 Montpellier Cedex 5, France
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5
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Benzotriazole-Mediated Synthesis and Antibacterial Activity of Novel N-Acylcephalexins. Sci Pharm 2016; 84:484-496. [PMID: 28117314 PMCID: PMC5064239 DOI: 10.3390/scipharm84030484] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2015] [Accepted: 02/18/2016] [Indexed: 11/17/2022] Open
Abstract
Cephalexin (1) was acylated using N-acylbenzotriazoles (3a–k′) derived from various carboxylic acids including aromatic, heterocyclic and N-Pg-α-amino acid to afford N-acylcephalexins in excellent yields (82%–96%). Antibacterial screening of the novel cephalosporins revealed that all targets (4a–j) retained the antibacterial activity of cephalexin against Staphylococcus aureus (ATCC 6538). N-Nicotinylcephalexin (4c) and N-(3,4,5-trimethoxybenzoyl)cephalexin (4g) exhibited a broader spectrum of antibacterial activity towards standard strains of Staphylococcus aureus (ATCC 6538), Paenibacillus polymyxa (ATCC 842), and Escherichia coli (ATCC 10536) as well as a resistant strain of Pseudomonas aeruginosa (ATCC 27853).
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6
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7
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Panda SS, Jones RA, Hall CD, Katritzky AR. Applications of Chemical Ligation in Peptide Synthesis via Acyl Transfer. Top Curr Chem (Cham) 2015; 362:229-65. [PMID: 25805142 DOI: 10.1007/128_2014_608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Abstract
The utility of native chemical ligation (NCL) in the solution or solid phase synthesis of peptides, cyclic peptides, glycopeptides, and neoglycoconjugates is reviewed. In addition, the mechanistic details of inter- or intra-molecular NCLs are discussed from experimental and computational points of view.
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Affiliation(s)
- Siva S Panda
- Department of Chemistry, Center for Heterocyclic Compounds, University of Florida, Gainesville, FL, 32611-7200, USA,
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8
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Biswas S, Kayaleh R, Pillai GG, Seon C, Roberts I, Popov V, Alamry KA, Katritzky AR. Long-Range Chemical Ligation from N→N Acyl Migrations in Tryptophan Peptides via Cyclic Transition States of 10- to 18-Members. Chemistry 2014; 20:8189-98. [DOI: 10.1002/chem.201400125] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2014] [Indexed: 11/07/2022]
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9
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Song J, Jeon JE, Won TH, Sim CJ, Oh DC, Oh KB, Shin J. New cyclic cystine bridged peptides from the sponge Suberites waedoensis. Mar Drugs 2014; 12:2760-70. [PMID: 24824023 PMCID: PMC4052314 DOI: 10.3390/md12052760] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2014] [Revised: 03/26/2014] [Accepted: 04/21/2014] [Indexed: 11/18/2022] Open
Abstract
Two new peptides, chujamides A (1) and B (2), were isolated from the marine sponge Suberites waedoensis, which was collected from Korean waters. Based upon the results of the combined spectroscopic analyses, the structures of these compounds were determined to be proline-riched and cyclic cystine bridged dodeca- and undecapeptides. The absolute configurations of all amino acid residues were determined to be l by advanced Marfey’s analysis. The new compounds exhibited weak cytotoxicities against A549 and K562 cell-lines, and compound 2 also demonstrated moderate inhibitory activity against Na+/K+-ATPase.
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Affiliation(s)
- Jinhaeng Song
- Natural Products Research Institute, College of Pharmacy, Seoul National University, San 56-1, Sillim, Gwanak, Seoul 151-742, Korea.
| | - Ju-Eun Jeon
- Natural Products Research Institute, College of Pharmacy, Seoul National University, San 56-1, Sillim, Gwanak, Seoul 151-742, Korea.
| | - Tae Hyung Won
- Natural Products Research Institute, College of Pharmacy, Seoul National University, San 56-1, Sillim, Gwanak, Seoul 151-742, Korea.
| | - Chung J Sim
- Department of Biological Science, College of Life Science and Nano Technology, Hannam University, 461-6 Jeonmin, Yuseong, Daejeon 305-811, Korea.
| | - Dong-Chan Oh
- Natural Products Research Institute, College of Pharmacy, Seoul National University, San 56-1, Sillim, Gwanak, Seoul 151-742, Korea.
| | - Ki-Bong Oh
- Department of Agricultural Biotechnology, College of Agriculture and Life Science, Seoul National University, San 56-1, Sillim, Gwanak, Seoul 151-921, Korea.
| | - Jongheon Shin
- Natural Products Research Institute, College of Pharmacy, Seoul National University, San 56-1, Sillim, Gwanak, Seoul 151-742, Korea.
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10
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Panda SS, Hall CD, Oliferenko AA, Katritzky AR. Traceless chemical ligation from S-, O-, and N-acyl isopeptides. Acc Chem Res 2014; 47:1076-87. [PMID: 24617996 DOI: 10.1021/ar400242q] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Peptides are ubiquitous in nature where they play crucial roles as catalysts (enzymes), cell membrane ion transporters, and structural elements (proteins) within biological systems. In addition, both linear and cyclic peptides have found use as pharmaceuticals and components of various conjugate molecular systems. Small wonder then that chemists throughout the ages have sought to mimic nature by synthesis of the amide polymers known as peptides and proteins. The fundamental reaction in the formation of a peptide bond is condensation of an amine of one amino acid with the activated carbonyl group of another. This "fragment condensation" has been achieved in many ways both in solution and by solid-phase peptide synthesis (SPSS) on resin. The most successful method for in-solution coupling is known as native chemical ligation (NCL), and the technique dates back to the pioneering work of Wieland (1953) and subsequently Kent (1994) among many others. This Account builds on the established principles of NCL as applied specifically to S-, O-, and N-isopeptides, molecules that are generally more soluble and less prone to aggregation than native peptides. This Account also covers NCL of isopeptides containing terminal and nonterminal S-acylated cysteine units, reactions that enable the synthesis of native peptides from S-acyl peptides without the use of auxiliaries. With C-terminal S-acyl isopeptides, NCL was carried out under microwave irradiation in phosphate buffer (pH 7.3) at 50 °C. Intramolecular acyl migration was observed through 5-19-membered transition states with relative rates, as assessed by product analysis, in the order, 5 > 10 > 11 > 14, 16, or 17 > 12 > 13, 15, or 19 > 18 ≫ 9 > 8. The rate/pH profile for the 15-membered TS showed a maximum for ligated product versus transacylation at pH 7.0-7.3 presumably associated with the pKa of the N-nucleophile in the hydrogen-bonded TS. Cysteine occurs at low abundance (1.7%) in natural peptides and is rarely available in a terminal position thus limiting the utility of the method. This Account reports, however, NCL at nonterminal acyl cysteine through 5-, 8-, 11-, and 14-membered TSs with relative rates of ligation in the order, 5 ≫ 14 > 11 ≫ 8, thus paralleling the results with acylated terminal cysteine residues. In an obvious sequel to the work with acylated cysteine, we discuss intramolecular O- to N-acyl shift in O-acyl serine and O-acyl tyrosine isopeptides where the story becomes more complex in terms of viable conditions and optimum size of the cyclic TS. N- to N-acyl migration in acyl tryptophan isopeptides is described, and finally, chemical ligation is applied to the synthesis of cyclic peptides. Conformational analysis and quantum chemical calculations are used to rationalize ligation through a range of cyclic transition states. This Account highlights the fact that NCL of acyl isopeptides is an extremely useful strategy for the synthesis of a wide variety of native peptides in good yields and under mild conditions. Mechanistic aspects of the ligations are not fully resolved, but theoretical studies indicate that hydrogen bonding within the various cyclic transition states plays a major role.
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Affiliation(s)
- Siva S. Panda
- Center
for Heterocyclic Compounds, Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
| | - C. Dennis Hall
- Center
for Heterocyclic Compounds, Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
| | - Alexander A. Oliferenko
- Center
for Heterocyclic Compounds, Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
| | - Alan R. Katritzky
- Center
for Heterocyclic Compounds, Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
- Chemistry Department, King Abdulaziz University, Jeddah, 21589 Saudi Arabia
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11
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Popov V, Panda SS, Katritzky AR. Ligations from Tyrosine Isopeptides via 12- to 19-Membered Cyclic Transition States. J Org Chem 2013; 78:7455-61. [DOI: 10.1021/jo4009468] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Vadim Popov
- Center for Heterocyclic
Compounds, University of Florida, Department
of Chemistry, Gainesville,
Florida 32611-7200, United States
| | - Siva S. Panda
- Center for Heterocyclic
Compounds, University of Florida, Department
of Chemistry, Gainesville,
Florida 32611-7200, United States
| | - Alan R. Katritzky
- Center for Heterocyclic
Compounds, University of Florida, Department
of Chemistry, Gainesville,
Florida 32611-7200, United States
- Department of Chemistry, King Abdulaziz University, Jeddah 21589, Saudi Arabia
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12
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Monbaliu JCM, Dive G, Stevens CV, Katritzky AR. Governing Parameters of Long-Range Intramolecular S-to-N Acyl Transfers within (S)-Acyl Isopeptides. J Chem Theory Comput 2013; 9:927-34. [DOI: 10.1021/ct300830k] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Jean-Christophe M. Monbaliu
- Center for Heterocyclic Compounds,
Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
- Department of Sustainable Organic
Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, B-9000 Ghent, Belgium
| | - Georges Dive
- Center of Protein Engineering,
Institut de Chimie, University of Liège, Bâtiment B.6, B-4000 Sart Tilman, Liège, Belgium
| | - Christian V. Stevens
- Department of Sustainable Organic
Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, B-9000 Ghent, Belgium
| | - Alan R. Katritzky
- Center for Heterocyclic Compounds,
Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
- Chemistry Department, King Abdulaziz University, Jeddah, 21589 Saudi Arabia
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13
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Popov V, Panda SS, Katritzky AR. Ligations of N-acyl tryptophan units to give native peptides via 7-, 10-, 11- and 12-membered cyclic transition states. Org Biomol Chem 2013; 11:1594-7. [DOI: 10.1039/c3ob27421g] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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14
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Panda SS, El-Nachef C, Bajaj K, Al-Youbi AO, Oliferenko A, Katritzky AR. Study of Chemical LigationVia17-, 18- and 19-Membered Cyclic Transition States. Chem Biol Drug Des 2012; 80:821-7. [DOI: 10.1111/cbdd.12053] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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15
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Bol'shakov O, Kovacs J, Chahar M, Ha K, Khelashvili L, Katritzky AR. S- toN-Acyl transfer inS-acylcysteine isopeptides via 9-, 10-, 12-, and 13-membered cyclic transition states. J Pept Sci 2012; 18:704-9. [DOI: 10.1002/psc.2438] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2012] [Revised: 07/05/2012] [Accepted: 07/06/2012] [Indexed: 11/06/2022]
Affiliation(s)
- Oleg Bol'shakov
- Center for Heterocyclic Compounds, Department of Chemistry; University of Florida; Gainesville; FL; 32611-7200; USA
| | - Judit Kovacs
- Center for Heterocyclic Compounds, Department of Chemistry; University of Florida; Gainesville; FL; 32611-7200; USA
| | - Mamta Chahar
- Center for Heterocyclic Compounds, Department of Chemistry; University of Florida; Gainesville; FL; 32611-7200; USA
| | - Khanh Ha
- Center for Heterocyclic Compounds, Department of Chemistry; University of Florida; Gainesville; FL; 32611-7200; USA
| | - Levan Khelashvili
- Center for Heterocyclic Compounds, Department of Chemistry; University of Florida; Gainesville; FL; 32611-7200; USA
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16
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Ha K, Chahar M, Monbaliu JCM, Todadze E, Hansen FK, Oliferenko AA, Ocampo CE, Leino D, Lillicotch A, Stevens CV, Katritzky AR. Long-Range Intramolecular S → N Acyl Migration: A Study of the Formation of Native Peptide Analogues via 13-, 15-, and 16-Membered Cyclic Transition States. J Org Chem 2012; 77:2637-48. [DOI: 10.1021/jo2023125] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Khanh Ha
- Center for Heterocyclic Compounds, Department
of Chemistry, University of Florida, Gainesville,
Florida 32611-7200, United States
| | - Mamta Chahar
- Center for Heterocyclic Compounds, Department
of Chemistry, University of Florida, Gainesville,
Florida 32611-7200, United States
| | - Jean-Christophe M. Monbaliu
- Center for Heterocyclic Compounds, Department
of Chemistry, University of Florida, Gainesville,
Florida 32611-7200, United States
- Department of Sustainable Organic Chemistry and Technology, Faculty
of Bioscience Engineering, Ghent University, B-9000 Ghent, Belgium
| | - Ekaterina Todadze
- Center for Heterocyclic Compounds, Department
of Chemistry, University of Florida, Gainesville,
Florida 32611-7200, United States
| | - Finn K. Hansen
- Center for Heterocyclic Compounds, Department
of Chemistry, University of Florida, Gainesville,
Florida 32611-7200, United States
- Institut für Pharmazeutische und Medizinische Chemie, Heinrich Heine Universität Düsseldorf, Universitätsstrasse 1, 40225 Düsseldorf, Germany
| | - Alexander A. Oliferenko
- Center for Heterocyclic Compounds, Department
of Chemistry, University of Florida, Gainesville,
Florida 32611-7200, United States
| | - Charles E. Ocampo
- Center for Heterocyclic Compounds, Department
of Chemistry, University of Florida, Gainesville,
Florida 32611-7200, United States
| | - David Leino
- Center for Heterocyclic Compounds, Department
of Chemistry, University of Florida, Gainesville,
Florida 32611-7200, United States
| | - Aaron Lillicotch
- Center for Heterocyclic Compounds, Department
of Chemistry, University of Florida, Gainesville,
Florida 32611-7200, United States
| | - Christian V. Stevens
- Department of Sustainable Organic Chemistry and Technology, Faculty
of Bioscience Engineering, Ghent University, B-9000 Ghent, Belgium
| | - Alan R. Katritzky
- Center for Heterocyclic Compounds, Department
of Chemistry, University of Florida, Gainesville,
Florida 32611-7200, United States
- Chemistry Department, King Abdulaziz University, Jeddah, 21589 Saudi Arabia
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17
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El Khatib M, Elagawany M, Jabeen F, Todadze E, Bol'shakov O, Oliferenko A, Khelashvili L, El-Feky SA, Asiri A, Katritzky AR. Traceless chemical ligations from O-acyl serine sites. Org Biomol Chem 2012; 10:4836-8. [DOI: 10.1039/c2ob07050b] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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18
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Monbaliu JCM, Katritzky AR. Recent trends in Cys- and Ser/Thr-based synthetic strategies for the elaboration of peptide constructs. Chem Commun (Camb) 2012; 48:11601-22. [DOI: 10.1039/c2cc34434c] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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19
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Hansen FK, Ha K, Todadze E, Lillicotch A, Frey A, Katritzky AR. Microwave-assisted chemical ligation of S-acyl peptides containing non-terminal cysteine residues. Org Biomol Chem 2011; 9:7162-7. [PMID: 21879126 DOI: 10.1039/c1ob05740e] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient approach for the synthesis of a series of S-acyl peptides containing internal cysteine residues has been developed and the chemical long-range ligation of these S-acyl peptides via 5-, 8-, 11- and 14-membered cyclic transition states has been investigated. Our results include the first examples of successful isopeptide ligations starting from S-acyl peptides containing non-terminal cysteine residues and indicate that the cyclic transition states studied in this present paper are decreasingly favored in the order of their sizes 5≫14>11≫8.
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Affiliation(s)
- Finn K Hansen
- Center for Heterocyclic Compounds, Department of Chemistry, University of Florida, Gainesville, FL 32611-7200, USA
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20
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Avan I, Tala SR, Steel PJ, Katritzky AR. Benzotriazole-Mediated Syntheses of Depsipeptides and Oligoesters. J Org Chem 2011; 76:4884-93. [DOI: 10.1021/jo200174j] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ilker Avan
- Center for Heterocyclic Compounds, Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
- Department of Chemistry, Anadolu University, 26470, Eskişehir, Turkey
| | - Srinivasa R. Tala
- Center for Heterocyclic Compounds, Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
| | - Peter J. Steel
- Department of Chemistry, University of Canterbury, Christchurch, New Zealand
| | - Alan R. Katritzky
- Center for Heterocyclic Compounds, Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
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21
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Oliferenko AA, Katritzky AR. Alternating chemical ligation reactivity of S-acyl peptides explained with theory and computations. Org Biomol Chem 2011; 9:4756-9. [DOI: 10.1039/c1ob05536d] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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22
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El Khatib M, Jauregui L, Tala SR, Khelashvili L, Katritzky AR. Solution-phase synthesis of chiral O-acyl isodipeptides. MEDCHEMCOMM 2011. [DOI: 10.1039/c1md00130b] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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