1
|
Noki S, de la Torre BG, Albericio F. Safety-Catch Linkers for Solid-Phase Peptide Synthesis. Molecules 2024; 29:1429. [PMID: 38611709 PMCID: PMC11012524 DOI: 10.3390/molecules29071429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Revised: 03/18/2024] [Accepted: 03/20/2024] [Indexed: 04/14/2024] Open
Abstract
Solid-phase peptide synthesis (SPPS) is the preferred strategy for synthesizing most peptides for research purposes and on a multi-kilogram scale. One key to the success of SPPS is the continual evolution and improvement of the original method proposed by Merrifield. Over the years, this approach has been enhanced with the introduction of new solid supports, protecting groups for amino acids, coupling reagents, and other tools. One of these improvements is the use of the so-called "safety-catch" linkers/resins. The linker is understood as the moiety that links the peptide to the solid support and protects the C-terminal carboxylic group. The "safety-catch" concept relies on linkers that are totally stable under the conditions needed for both α-amino and side-chain deprotection that, at the end of synthesis, can be made labile to one of those conditions by a simple chemical reaction (e.g., an alkylation). This unique characteristic enables the simultaneous use of two primary protecting strategies: tert-butoxycarbonyl (Boc) and fluorenylmethoxycarbonyl (Fmoc). Ultimately, at the end of synthesis, either acids (which are incompatible with Boc) or bases (which are incompatible with Fmoc) can be employed to cleave the peptide from the resin. This review focuses on the most significant "safety-catch" linkers.
Collapse
Affiliation(s)
- Sikabwe Noki
- Peptide Science Laboratory, School of Chemistry and Physics, University of KwaZulu-Natal, Westville, Durban 4000, South Africa;
- KwaZulu-Natal Research Innovation and Sequencing Platform (KRISP), School of Laboratory Medicine and Medical Sciences, College of Health Sciences, University of KwaZulu-Natal, Durban 4041, South Africa
| | - Beatriz G. de la Torre
- KwaZulu-Natal Research Innovation and Sequencing Platform (KRISP), School of Laboratory Medicine and Medical Sciences, College of Health Sciences, University of KwaZulu-Natal, Durban 4041, South Africa
| | - Fernando Albericio
- Peptide Science Laboratory, School of Chemistry and Physics, University of KwaZulu-Natal, Westville, Durban 4000, South Africa;
- CIBER-BBN, Networking Centre on Bioengineering, Biomaterials, and Nanomedicine, Department of Organic Chemistry, University of Barcelona, 08028 Barcelona, Spain
| |
Collapse
|
2
|
Khatoon H, Abdulmalek E. A Focused Review of Synthetic Applications of Lawesson's Reagent in Organic Synthesis. Molecules 2021; 26:6937. [PMID: 34834028 PMCID: PMC8618327 DOI: 10.3390/molecules26226937] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 08/06/2021] [Accepted: 08/08/2021] [Indexed: 11/30/2022] Open
Abstract
Lawesson's reagent (LR) is a well-known classic example of a compound with unique construction and unusual chemical behavior, with a wide range of applications in synthetic organic chemistry. Its main functions were rounded for the thionation of various carbonyl groups in the early days, with exemplary results. However, the role of Lawesson's reagent in synthesis has changed drastically, and now its use can help the chemistry community to understand innovative ideas. These include constructing biologically valuable heterocycles, coupling reactions, and the thionation of natural compounds. The ease of availability and the convenient usage of LR as a thionating agent made us compile a review on the new diverse applications on some common functional groups, such as ketones, esters, amides, alcohols, and carboxylic acids, with biological applications. Since the applications of LR are now diverse, we have also included some new classes of heterocycles such as thiazepines, phosphine sulfides, thiophenes, and organothiophosphorus compounds. Thionation of some biologically essential steroids and terpenoids has also been compiled. This review discusses the recent insights into and synthetic applications of this famous reagent from 2009 to January 2021.
Collapse
Affiliation(s)
- Hena Khatoon
- Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
| | - Emilia Abdulmalek
- Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
- Integrated Chemical BioPhysics Research, Faculty of Science, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
| |
Collapse
|
3
|
Lossouarn A, Renard PY, Sabot C. Tailored Bioorthogonal and Bioconjugate Chemistry: A Source of Inspiration for Developing Kinetic Target-Guided Synthesis Strategies. Bioconjug Chem 2020; 32:63-72. [PMID: 33232599 DOI: 10.1021/acs.bioconjchem.0c00568] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Kinetic target-guided synthesis (KTGS) is a promising tool for the discovery of biologically active compounds. It relies on the identification of potent ligands that are covalently assembled by the biological targets themselves from a pool of reagents. Significant effort is devoted to developing new KTGS strategies; however, only a handful of biocompatible reactions are available, which may be insufficient to meet the specificities (stability, dynamics, active site topology, etc.) of a wide range of biological targets with therapeutic potential. This Topical Review proposes a retrospective analysis of existing KTGS ligation tools, in terms of their kinetics and analogy with other biocompatible reactions, and provides new clues to expand the KTGS toolkit. By way of examples, a nonexhaustive selection of such chemical ligation tools belonging to different classes of reactions as promising candidate reactions for KTGS are suggested.
Collapse
Affiliation(s)
- Alexis Lossouarn
- Normandie Université, Centre National de la Recherche Scientifique, UNIROUEN, INSA Rouen, COBRA, UMR 6014 & FR 3038, 76000, Rouen, France
| | - Pierre-Yves Renard
- Normandie Université, Centre National de la Recherche Scientifique, UNIROUEN, INSA Rouen, COBRA, UMR 6014 & FR 3038, 76000, Rouen, France
| | - Cyrille Sabot
- Normandie Université, Centre National de la Recherche Scientifique, UNIROUEN, INSA Rouen, COBRA, UMR 6014 & FR 3038, 76000, Rouen, France
| |
Collapse
|
4
|
Roopesh Kumar L, Panduranga V, Vishwanatha TM, Shekharappa, Sureshbabu VV. Synthesis of thioureido peptidomimetics employing alkyl azides and dithiocarbamates. Org Biomol Chem 2019. [PMID: 29528353 DOI: 10.1039/c8ob00239h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
An unprecedented approach for the assembly of thioureido peptidomimetics is developed employing alkyl azides and dithiocarbamates. Dithiocarbamates react with alkyl azides with the liberation of N2 and elemental sulfur thereby leading to thiourea in a traceless manner. Thioureido peptidomimetics are thus furnished in good yields with no epimerization. This process is mild, free from the use of a base, scalable and step economic. The practicability of this methodology has been highlighted by the synthesis of N,N'-orthogonally protected thioureido peptidomimetics.
Collapse
Affiliation(s)
- L Roopesh Kumar
- Room No. 109, Peptide Research Laboratory, Department of Studies in Chemistry, Central College Campus, Dr. B. R. Ambedkar Veedhi, Bangalore University, Bangalore, 560001, India.
| | | | | | | | | |
Collapse
|
5
|
Grygorenko OO, Biitseva AV, Zhersh S. Amino sulfonic acids, peptidosulfonamides and other related compounds. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.01.033] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
|
6
|
N. N, Thimmalapura VM, Hosamani B, Prabhu G, Kumar LR, Sureshbabu VV. Thioacids – synthons for amide bond formation and ligation reactions: assembly of peptides and peptidomimetics. Org Biomol Chem 2018; 16:3524-3552. [DOI: 10.1039/c8ob00512e] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis of α-amino thioacids and peptide thioacids and their applications in chemoselective amide bond formation, ligation of peptides/proteins/glycopeptides and synthesis of peptidomimetics are reviewed.
Collapse
Affiliation(s)
- Narendra N.
- Department of Chemistry
- University College of Science
- Tumkur University
- Tumkur 572 103
- India
| | - Vishwanatha M. Thimmalapura
- Room No. 109
- Peptide Research Laboratory
- Department of Studies in Chemistry
- Central College Campus
- Dr B. R. Ambedkar Veedhi
| | - Basavaprabhu Hosamani
- Room No. 109
- Peptide Research Laboratory
- Department of Studies in Chemistry
- Central College Campus
- Dr B. R. Ambedkar Veedhi
| | - Girish Prabhu
- Room No. 109
- Peptide Research Laboratory
- Department of Studies in Chemistry
- Central College Campus
- Dr B. R. Ambedkar Veedhi
| | - L. Roopesh Kumar
- Room No. 109
- Peptide Research Laboratory
- Department of Studies in Chemistry
- Central College Campus
- Dr B. R. Ambedkar Veedhi
| | - Vommina V. Sureshbabu
- Room No. 109
- Peptide Research Laboratory
- Department of Studies in Chemistry
- Central College Campus
- Dr B. R. Ambedkar Veedhi
| |
Collapse
|
7
|
Panduranga V, Prabhu G, Kumar R, Basavaprabhu B, Sureshbabu VV. A facile one pot route for the synthesis of imide tethered peptidomimetics. Org Biomol Chem 2016; 14:556-563. [DOI: 10.1039/c5ob01708d] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A simple and efficient method for the synthesis of N,N’-orthogonally protected imide tethered peptidomimetics is presented. The imide peptidomimetics were synthesized by coupling the in situ generated selenocarboxylate of Nα-protected amino acids with Nα-protected amino acid azides in good yields.
Collapse
Affiliation(s)
- Veladi Panduranga
- Peptide Research Laboratory
- Department of Studies in Chemistry
- Bangalore 560 001
- India
| | - Girish Prabhu
- Peptide Research Laboratory
- Department of Studies in Chemistry
- Bangalore 560 001
- India
| | - Roopesh Kumar
- Peptide Research Laboratory
- Department of Studies in Chemistry
- Bangalore 560 001
- India
| | | | | |
Collapse
|
8
|
Chou TC, Hsu YL, Lo LC. A Convenient Preparation of Bis(4-methoxyphenyl)methanethiol and Its Application in the Synthesis of Biotin Thioacid. J CHIN CHEM SOC-TAIP 2014. [DOI: 10.1002/jccs.201300664] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
9
|
van de Langemheen H, van Hoeke M, Quarles van Ufford HC, Kruijtzer JAW, Liskamp RMJ. Scaffolded multiple cyclic peptide libraries for protein mimics by native chemical ligation. Org Biomol Chem 2014; 12:4471-8. [DOI: 10.1039/c4ob00190g] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The accessibility to collections, libraries and arrays of cyclic peptides is increasingly important since cyclic peptides may provide better mimics of the loop-like structures ubiquitously present in and – especially – on the surface of proteins.
Collapse
Affiliation(s)
- H. van de Langemheen
- Medicinal Chemistry & Chemical Biology
- Utrecht Institute for Pharmaceutical Sciences
- Department of Pharmaceutical Sciences
- Faculty of Sciences
- Utrecht University
| | - M. van Hoeke
- Medicinal Chemistry & Chemical Biology
- Utrecht Institute for Pharmaceutical Sciences
- Department of Pharmaceutical Sciences
- Faculty of Sciences
- Utrecht University
| | - H. C. Quarles van Ufford
- Medicinal Chemistry & Chemical Biology
- Utrecht Institute for Pharmaceutical Sciences
- Department of Pharmaceutical Sciences
- Faculty of Sciences
- Utrecht University
| | - J. A. W. Kruijtzer
- Medicinal Chemistry & Chemical Biology
- Utrecht Institute for Pharmaceutical Sciences
- Department of Pharmaceutical Sciences
- Faculty of Sciences
- Utrecht University
| | - R. M. J. Liskamp
- Medicinal Chemistry & Chemical Biology
- Utrecht Institute for Pharmaceutical Sciences
- Department of Pharmaceutical Sciences
- Faculty of Sciences
- Utrecht University
| |
Collapse
|
10
|
Mühlberg M, Siebertz KD, Schlegel B, Schmieder P, Hackenberger CPR. Controlled thioamide vs. amide formation in the thioacid–azide reaction under acidic aqueous conditions. Chem Commun (Camb) 2014; 50:4603-6. [DOI: 10.1039/c4cc00774c] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
11
|
Elsawy MA, Martin L, Tikhonova IG, Walker B. Solid phase synthesis of Smac/DIABLO-derived peptides using a ‘Safety-Catch’ resin: Identification of potent XIAP BIR3 antagonists. Bioorg Med Chem 2013; 21:5004-11. [DOI: 10.1016/j.bmc.2013.06.055] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2012] [Revised: 06/20/2013] [Accepted: 06/24/2013] [Indexed: 10/26/2022]
|
12
|
Fécourt F, Delpech B, Melnyk O, Crich D. Se-(9-Fluorenylmethyl) Selenoesters; Preparation, Reactivity, and Use as Convenient Synthons for Selenoacids. Org Lett 2013; 15:3758-61. [DOI: 10.1021/ol401677a] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Fabien Fécourt
- Centre de Recherche de Gif, Institut de Chimie des Substances Naturelles, CNRS, 1 Avenue de la Terrasse, 91190 Gif-sur-Yvette, France, CNRS UMR 8161, Univ. Lille Nord de France, Institut Pasteur de Lille, 59021, Lille, France, and Department of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, Michigan 48202, United States
| | - Bernard Delpech
- Centre de Recherche de Gif, Institut de Chimie des Substances Naturelles, CNRS, 1 Avenue de la Terrasse, 91190 Gif-sur-Yvette, France, CNRS UMR 8161, Univ. Lille Nord de France, Institut Pasteur de Lille, 59021, Lille, France, and Department of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, Michigan 48202, United States
| | - Oleg Melnyk
- Centre de Recherche de Gif, Institut de Chimie des Substances Naturelles, CNRS, 1 Avenue de la Terrasse, 91190 Gif-sur-Yvette, France, CNRS UMR 8161, Univ. Lille Nord de France, Institut Pasteur de Lille, 59021, Lille, France, and Department of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, Michigan 48202, United States
| | - David Crich
- Centre de Recherche de Gif, Institut de Chimie des Substances Naturelles, CNRS, 1 Avenue de la Terrasse, 91190 Gif-sur-Yvette, France, CNRS UMR 8161, Univ. Lille Nord de France, Institut Pasteur de Lille, 59021, Lille, France, and Department of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, Michigan 48202, United States
| |
Collapse
|
13
|
Mhidia R, Boll E, Fécourt F, Ermolenko M, Ollivier N, Sasaki K, Crich D, Delpech B, Melnyk O. Exploration of an imide capture/N,N-acyl shift sequence for asparagine native peptide bond formation. Bioorg Med Chem 2013; 21:3479-85. [DOI: 10.1016/j.bmc.2013.02.053] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2013] [Revised: 02/15/2013] [Accepted: 02/28/2013] [Indexed: 01/27/2023]
|
14
|
Thomas F. Fmoc-based peptide thioester synthesis with self-purifying effect: heading to native chemical ligation in parallel formats. J Pept Sci 2013; 19:141-7. [DOI: 10.1002/psc.2494] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2013] [Accepted: 01/22/2013] [Indexed: 12/14/2022]
Affiliation(s)
- Franziska Thomas
- School of Chemistry; University of Bristol; Cantock's Close Bristol BS8 1TS UK
| |
Collapse
|
15
|
van de Langemheen H, Brouwer AJ, Kemmink J, Kruijtzer JAW, Liskamp RMJ. Synthesis of Cyclic Peptides Containing a Thioester Handle for Native Chemical Ligation. J Org Chem 2012; 77:10058-64. [DOI: 10.1021/jo3015566] [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]
Affiliation(s)
- Helmus van de Langemheen
- Division of Medicinal Chemistry & Chemical Biology, Utrecht Institute for Pharmaceutical Sciences, Department of Pharmaceutical Sciences, Faculty of Sciences, Utrecht University, P.O. Box 80082, 3508 TB, Utrecht, The Netherlands
| | - Arwin J. Brouwer
- Division of Medicinal Chemistry & Chemical Biology, Utrecht Institute for Pharmaceutical Sciences, Department of Pharmaceutical Sciences, Faculty of Sciences, Utrecht University, P.O. Box 80082, 3508 TB, Utrecht, The Netherlands
| | - Johan Kemmink
- Division of Medicinal Chemistry & Chemical Biology, Utrecht Institute for Pharmaceutical Sciences, Department of Pharmaceutical Sciences, Faculty of Sciences, Utrecht University, P.O. Box 80082, 3508 TB, Utrecht, The Netherlands
| | - John A. W. Kruijtzer
- Division of Medicinal Chemistry & Chemical Biology, Utrecht Institute for Pharmaceutical Sciences, Department of Pharmaceutical Sciences, Faculty of Sciences, Utrecht University, P.O. Box 80082, 3508 TB, Utrecht, The Netherlands
| | - Rob M. J. Liskamp
- Division of Medicinal Chemistry & Chemical Biology, Utrecht Institute for Pharmaceutical Sciences, Department of Pharmaceutical Sciences, Faculty of Sciences, Utrecht University, P.O. Box 80082, 3508 TB, Utrecht, The Netherlands
| |
Collapse
|
16
|
Otaka A, Sato K, Ding H, Shigenaga A. One-Pot/Sequential Native Chemical Ligation UsingN-Sulfanylethylanilide Peptide. CHEM REC 2012; 12:479-90. [DOI: 10.1002/tcr.201200007] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2012] [Indexed: 01/05/2023]
|
17
|
Sakamoto K, Sato K, Shigenaga A, Tsuji K, Tsuda S, Hibino H, Nishiuchi Y, Otaka A. Synthetic Procedure for N-Fmoc Amino Acyl-N-Sulfanylethylaniline Linker as Crypto-Peptide Thioester Precursor with Application to Native Chemical Ligation. J Org Chem 2012; 77:6948-58. [DOI: 10.1021/jo3011107] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Ken Sakamoto
- Institute
of Health Biosciences and Graduate School of Pharmaceutical Sciences, The University of Tokushima, Tokushima 770-8505, Japan
| | - Kohei Sato
- Institute
of Health Biosciences and Graduate School of Pharmaceutical Sciences, The University of Tokushima, Tokushima 770-8505, Japan
| | - Akira Shigenaga
- Institute
of Health Biosciences and Graduate School of Pharmaceutical Sciences, The University of Tokushima, Tokushima 770-8505, Japan
| | - Kohei Tsuji
- Institute
of Health Biosciences and Graduate School of Pharmaceutical Sciences, The University of Tokushima, Tokushima 770-8505, Japan
| | - Shugo Tsuda
- Institute
of Health Biosciences and Graduate School of Pharmaceutical Sciences, The University of Tokushima, Tokushima 770-8505, Japan
- Saito Research Center, Peptide Institute, Inc., 7-2-9 Saito Ibaraki, Osaka
567-0085, Japan
| | - Hajime Hibino
- Saito Research Center, Peptide Institute, Inc., 7-2-9 Saito Ibaraki, Osaka
567-0085, Japan
| | - Yuji Nishiuchi
- Saito Research Center, Peptide Institute, Inc., 7-2-9 Saito Ibaraki, Osaka
567-0085, Japan
- Department
of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Akira Otaka
- Institute
of Health Biosciences and Graduate School of Pharmaceutical Sciences, The University of Tokushima, Tokushima 770-8505, Japan
| |
Collapse
|
18
|
T3P (propylphosphonic anhydride) mediated conversion of Nα-protected amino/peptide acids into thioacids. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.01.027] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
19
|
Zhang X, Li F, Liu CF. Synthesis of histone H3 proteins by a thioacid capture ligation strategy. Chem Commun (Camb) 2011; 47:1746-8. [DOI: 10.1039/c0cc03666h] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
|
20
|
Mende F, Seitz O. 9-Fluorenylmethyloxycarbonyl-basierte Festphasensynthese von α-Peptidthioestern. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.201005180] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
|
21
|
Mende F, Seitz O. 9-Fluorenylmethoxycarbonyl-Based Solid-Phase Synthesis of Peptide α-Thioesters. Angew Chem Int Ed Engl 2010; 50:1232-40. [DOI: 10.1002/anie.201005180] [Citation(s) in RCA: 170] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2010] [Indexed: 01/26/2023]
|
22
|
Mhidia R, Bézière N, Blanpain A, Pommery N, Melnyk O. Assembly/Disassembly of Drug Conjugates Using Imide Ligation. Org Lett 2010; 12:3982-5. [DOI: 10.1021/ol101049g] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Reda Mhidia
- UMR CNRS 8161, Université de Lille Nord de France, IFR 142, Institut Pasteur de Lille, 1 rue du Pr Calmette 59021 Lille, France, and Université de Lille Nord de France, 3 rue du Professeur Laguesse BP83, 59006 Lille Cedex, France
| | - Nicolas Bézière
- UMR CNRS 8161, Université de Lille Nord de France, IFR 142, Institut Pasteur de Lille, 1 rue du Pr Calmette 59021 Lille, France, and Université de Lille Nord de France, 3 rue du Professeur Laguesse BP83, 59006 Lille Cedex, France
| | - Annick Blanpain
- UMR CNRS 8161, Université de Lille Nord de France, IFR 142, Institut Pasteur de Lille, 1 rue du Pr Calmette 59021 Lille, France, and Université de Lille Nord de France, 3 rue du Professeur Laguesse BP83, 59006 Lille Cedex, France
| | - Nicole Pommery
- UMR CNRS 8161, Université de Lille Nord de France, IFR 142, Institut Pasteur de Lille, 1 rue du Pr Calmette 59021 Lille, France, and Université de Lille Nord de France, 3 rue du Professeur Laguesse BP83, 59006 Lille Cedex, France
| | - Oleg Melnyk
- UMR CNRS 8161, Université de Lille Nord de France, IFR 142, Institut Pasteur de Lille, 1 rue du Pr Calmette 59021 Lille, France, and Université de Lille Nord de France, 3 rue du Professeur Laguesse BP83, 59006 Lille Cedex, France
| |
Collapse
|
23
|
Crich D, Rahaman MY. Dihydro-3-(triphenylphosphoranylidene)-2,5-thiophendione: A Convenient Synthon for the Preparation of Substituted 1,4-Thiazepin-5-ones and Piperidinones via the Intermediacy of Thioacids. Tetrahedron 2010; 66:6383-6390. [PMID: 21170150 DOI: 10.1016/j.tet.2010.04.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Reaction of thiomaleic anhydride with triphenylphosphine gives the title compound which undergoes reaction with a variety of aldehydes to give a range of alkylidene thiomaleic anhydrides (substituted monothio itaconic anhydrides). Subsequent treatment with tert-butoxycarbonylamino-substituted thiols, or under radical conditions with tert-butoxycarbonylamino-substituted alkyl halides results in a series of substituted monothiomaleic anhydrides, that on exposure to trifluoroacetic acid and then base lead to thiocarboxyl substituted 1,4-thiazepin-5-ones and piperidinones, respectively, that are ultimately trapped by reaction with 2,4-dinitrobenzenesulfonamides to give the corresponding amides.
Collapse
Affiliation(s)
- David Crich
- Centre de Recherche de Gif, Institut de Chimie des Substances Naturelles, CNRS, Avenue de la Terrasse, 91198 Gif-sur-Yvette, France
| | | |
Collapse
|
24
|
Rijkers DTS, Merkx R, Yim CB, Brouwer AJ, Liskamp RMJ. âSulfo-clickâ for ligation as well as for site-specific conjugation with peptides, fluorophores, and metal chelators. J Pept Sci 2010; 16:1-5. [DOI: 10.1002/psc.1197] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
25
|
Crich D, Rahaman MY. Thiomaleic anhydride: a convenient building block for the synthesis of alpha-substituted gamma- and delta-lactones through free-radical addition, nucleophilic ring opening, and subsequent thiocarboxylate manipulation. J Org Chem 2009; 74:6792-6. [PMID: 19670833 DOI: 10.1021/jo901219k] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Iodoalkyl tert-butyl carbonates and carbamates undergo clean free-radical addition to thiomaleic anhydride to give substituted thiosuccinic anhydrides in high yield on treatment with tris(trimethylsilyl)silane and a radical initiator. After removal of the tert-butyloxycarbonyl group, cyclization then affords lactones or lactams substituted in the alpha-position by a thiocarboxylic acid residue. This group is converted to amides through reaction with electron-deficient sulfonamides or to aldehydes and/or ketones by the reaction of derived thioesters with either thiophenol, an electron-deficient allyl phenyl sulfide, or phenylboronic acid.
Collapse
Affiliation(s)
- David Crich
- Centre de Recherche de Gif, Institut de Chimie des Substances Naturelles, Avenue de la Terrasse, 91198 Gif-sur-Yvette, France.
| | | |
Collapse
|
26
|
Crich D, Sana K. Solid-phase synthesis of peptidyl thioacids employing a 9-fluorenylmethyl thioester-based linker in conjunction with Boc chemistry. J Org Chem 2009; 74:7383-8. [PMID: 19725529 DOI: 10.1021/jo901218g] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A method for the synthesis of peptidyl thioacids is described on the basis of the use of the N-[9-(thiomethyl)-9H-fluoren-2-yl]succinamic acid and cross-linked aminomethyl polystyrene resin. The method employs standard Boc chemistry SPPS techniques in conjunction with 9-fluorenylmethyloxycarbonyl protection of side-chain alcohols and amines and 9-fluorenylmethyl protection of side-chain acids and thiols. Cleavage from the resin is accomplished with piperidine, which also serves to remove the side-chain protection and avoids the HF conditions usually associated with the resin cleavage stage of Boc chemistry SPPS. The so-obtained thioacids are converted to simple thioesters in high yield by standard alkylation according to well-established methods.
Collapse
Affiliation(s)
- David Crich
- Centre de Recherche de Gif-sur-Yvette, Institut de Chimie des Substances Naturelles, Centre National de la Recherche Scientifique, avenue de la Terrasse, 91198 Gif-sur-Yvette, France.
| | | |
Collapse
|
27
|
Crich D, Sasaki K. Reaction of thioacids with isocyanates and isothiocyanates: a convenient amide ligation process. Org Lett 2009; 11:3514-7. [PMID: 19719195 DOI: 10.1021/ol901370y] [Citation(s) in RCA: 82] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Thiocarboxylates, prepared conveniently by cleavage of 9-fluorenylmethyl or trimethoxybenzyl thioesters, react at room temperature with isocyanates and isothiocyanates to give amide bonds in good to excellent yield. A carboxylate salt is also shown to react with an electron-deficient isocyanate to give the corresponding amide in excellent yield at room temperature.
Collapse
Affiliation(s)
- David Crich
- Centre Scientifique de Gif, Institut de Chimie des Substances Naturelles, 1 Avenue de la Terrasse, 91198 Gif-sur-Yvette, France.
| | | |
Collapse
|
28
|
Rao Y, Li X, Nagorny P, Hayashida J, Danishefsky SJ. A Simple Method for the Conversion of Carboxylic Acids into Thioacids with Lawesson's Reagent. Tetrahedron Lett 2009; 50:6684-6686. [PMID: 20160926 PMCID: PMC2762222 DOI: 10.1016/j.tetlet.2009.09.080] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
A one-step protocol for the conversion of carboxylic acids to thioesters, using Lawesson's Reagent, has been developed.
Collapse
Affiliation(s)
- Yu Rao
- Laboratory for Bioorganic Chemistry, Sloan-Kettering Institute for Cancer Research, 1275 York Avenue, New York, NY 10065, USA
| | | | | | | | | |
Collapse
|
29
|
van Dijk M, Rijkers DTS, Liskamp RMJ, van Nostrum CF, Hennink WE. Synthesis and Applications of Biomedical and Pharmaceutical Polymers via Click Chemistry Methodologies. Bioconjug Chem 2009; 20:2001-16. [DOI: 10.1021/bc900087a] [Citation(s) in RCA: 249] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Maarten van Dijk
- Department of Pharmaceutics and Department of Medicinal Chemistry and Chemical Biology, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, P.O. Box 80082, 3508 TB Utrecht, The Netherlands
| | - Dirk T. S. Rijkers
- Department of Pharmaceutics and Department of Medicinal Chemistry and Chemical Biology, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, P.O. Box 80082, 3508 TB Utrecht, The Netherlands
| | - Rob M. J. Liskamp
- Department of Pharmaceutics and Department of Medicinal Chemistry and Chemical Biology, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, P.O. Box 80082, 3508 TB Utrecht, The Netherlands
| | - Cornelus F. van Nostrum
- Department of Pharmaceutics and Department of Medicinal Chemistry and Chemical Biology, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, P.O. Box 80082, 3508 TB Utrecht, The Netherlands
| | - Wim E. Hennink
- Department of Pharmaceutics and Department of Medicinal Chemistry and Chemical Biology, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, P.O. Box 80082, 3508 TB Utrecht, The Netherlands
| |
Collapse
|
30
|
Crich D, Sasaki K, Rahaman MY, Bowers AA. One-Pot Syntheses of Dissymmetric Diamides Based on the Chemistry of Cyclic Monothioanhydrides. Scope and Limitations and Application to the Synthesis of Glycodipeptides. J Org Chem 2009; 74:3886-93. [DOI: 10.1021/jo900532e] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- David Crich
- Centre de Recherche CNRS de Gif-sur-Yvette, Institut de Chimie des Substances Naturelles, Avenue de la Terrasse, 91198 Gif-sur-Yvette, France, Department of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, Michigan 48202, and Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607
| | - Kaname Sasaki
- Centre de Recherche CNRS de Gif-sur-Yvette, Institut de Chimie des Substances Naturelles, Avenue de la Terrasse, 91198 Gif-sur-Yvette, France, Department of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, Michigan 48202, and Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607
| | - Md Yeajur Rahaman
- Centre de Recherche CNRS de Gif-sur-Yvette, Institut de Chimie des Substances Naturelles, Avenue de la Terrasse, 91198 Gif-sur-Yvette, France, Department of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, Michigan 48202, and Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607
| | - Albert A. Bowers
- Centre de Recherche CNRS de Gif-sur-Yvette, Institut de Chimie des Substances Naturelles, Avenue de la Terrasse, 91198 Gif-sur-Yvette, France, Department of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, Michigan 48202, and Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607
| |
Collapse
|
31
|
Kappe CO, Dallinger D. Controlled microwave heating in modern organic synthesis: highlights from the 2004–2008 literature. Mol Divers 2009; 13:71-193. [PMID: 19381851 DOI: 10.1007/s11030-009-9138-8] [Citation(s) in RCA: 292] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2009] [Accepted: 02/27/2009] [Indexed: 01/25/2023]
|
32
|
|
33
|
Crich D, Sana K. SN2-Type Nucleophilic Opening of β-Thiolactones (Thietan-2-ones) as a Source of Thioacids for Coupling Reactions. J Org Chem 2009; 74:3389-93. [DOI: 10.1021/jo9001728] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- David Crich
- Department of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, Michigan 48202, and Centre de Recherche CNRS de Gif-sur-Yvette, Institut de Chimie des Substances Naturelles, Avenue de la Terrasse, 91198 Gif-sur-Yvette, France
| | - Kasinath Sana
- Department of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, Michigan 48202, and Centre de Recherche CNRS de Gif-sur-Yvette, Institut de Chimie des Substances Naturelles, Avenue de la Terrasse, 91198 Gif-sur-Yvette, France
| |
Collapse
|
34
|
Zhang X, Li F, Lu XW, Liu CF. Protein C-Terminal Modification through Thioacid/Azide Amidation. Bioconjug Chem 2009; 20:197-200. [DOI: 10.1021/bc800488n] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Xiaohong Zhang
- Division of Chemical Biology and Biotechnology, School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore 637551
| | - Fupeng Li
- Division of Chemical Biology and Biotechnology, School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore 637551
| | - Xiao-Wei Lu
- Division of Chemical Biology and Biotechnology, School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore 637551
| | - Chuan-Fa Liu
- Division of Chemical Biology and Biotechnology, School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore 637551
| |
Collapse
|
35
|
Dolle RE, Bourdonnec BL, Goodman AJ, Morales GA, Thomas CJ, Zhang W. Comprehensive Survey of Chemical Libraries for Drug Discovery and Chemical Biology: 2007. ACTA ACUST UNITED AC 2008; 10:753-802. [PMID: 18991466 DOI: 10.1021/cc800119z] [Citation(s) in RCA: 92] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Roland E. Dolle
- Adolor Corporation, 700 Pennsylvania Drive, Exton, Pennsylvania 19341, Semafore Pharmaceuticals Inc., 8496 Georgetown Road, Indianapolis, Indiana 46268, NIH Chemical Genomics Center, National Human Genome Research Institute, National Institutes of Health, 9800 Medical Center Drive, Rockville, Maryland 20850, and Department of Chemistry, University of Massachusetts, 100 Morrissey Boulevard, Boston, Massachusetts 02125
| | - Bertrand Le Bourdonnec
- Adolor Corporation, 700 Pennsylvania Drive, Exton, Pennsylvania 19341, Semafore Pharmaceuticals Inc., 8496 Georgetown Road, Indianapolis, Indiana 46268, NIH Chemical Genomics Center, National Human Genome Research Institute, National Institutes of Health, 9800 Medical Center Drive, Rockville, Maryland 20850, and Department of Chemistry, University of Massachusetts, 100 Morrissey Boulevard, Boston, Massachusetts 02125
| | - Allan J. Goodman
- Adolor Corporation, 700 Pennsylvania Drive, Exton, Pennsylvania 19341, Semafore Pharmaceuticals Inc., 8496 Georgetown Road, Indianapolis, Indiana 46268, NIH Chemical Genomics Center, National Human Genome Research Institute, National Institutes of Health, 9800 Medical Center Drive, Rockville, Maryland 20850, and Department of Chemistry, University of Massachusetts, 100 Morrissey Boulevard, Boston, Massachusetts 02125
| | - Guillermo A. Morales
- Adolor Corporation, 700 Pennsylvania Drive, Exton, Pennsylvania 19341, Semafore Pharmaceuticals Inc., 8496 Georgetown Road, Indianapolis, Indiana 46268, NIH Chemical Genomics Center, National Human Genome Research Institute, National Institutes of Health, 9800 Medical Center Drive, Rockville, Maryland 20850, and Department of Chemistry, University of Massachusetts, 100 Morrissey Boulevard, Boston, Massachusetts 02125
| | - Craig J. Thomas
- Adolor Corporation, 700 Pennsylvania Drive, Exton, Pennsylvania 19341, Semafore Pharmaceuticals Inc., 8496 Georgetown Road, Indianapolis, Indiana 46268, NIH Chemical Genomics Center, National Human Genome Research Institute, National Institutes of Health, 9800 Medical Center Drive, Rockville, Maryland 20850, and Department of Chemistry, University of Massachusetts, 100 Morrissey Boulevard, Boston, Massachusetts 02125
| | - Wei Zhang
- Adolor Corporation, 700 Pennsylvania Drive, Exton, Pennsylvania 19341, Semafore Pharmaceuticals Inc., 8496 Georgetown Road, Indianapolis, Indiana 46268, NIH Chemical Genomics Center, National Human Genome Research Institute, National Institutes of Health, 9800 Medical Center Drive, Rockville, Maryland 20850, and Department of Chemistry, University of Massachusetts, 100 Morrissey Boulevard, Boston, Massachusetts 02125
| |
Collapse
|
36
|
Bacsa B, Horváti K, Bõsze S, Andreae F, Kappe CO. Solid-Phase Synthesis of Difficult Peptide Sequences at Elevated Temperatures: A Critical Comparison of Microwave and Conventional Heating Technologies. J Org Chem 2008; 73:7532-42. [DOI: 10.1021/jo8013897] [Citation(s) in RCA: 140] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Bernadett Bacsa
- Christian Doppler Laboratory for Microwave Chemistry (CDLMC) and Institute of Chemistry, Karl-Franzens-University Graz, Heinrichstrasse 28, A-8010 Graz, Austria, Research Group of Peptide Chemistry, Hungarian Academy of Sciences, Eötvös Loránd University, 1117 Budapest, Hungary, and piCHEM Forschungs und EntwicklungsgmbH, Kahngasse 20, A-8045 Graz, Austria
| | - Kata Horváti
- Christian Doppler Laboratory for Microwave Chemistry (CDLMC) and Institute of Chemistry, Karl-Franzens-University Graz, Heinrichstrasse 28, A-8010 Graz, Austria, Research Group of Peptide Chemistry, Hungarian Academy of Sciences, Eötvös Loránd University, 1117 Budapest, Hungary, and piCHEM Forschungs und EntwicklungsgmbH, Kahngasse 20, A-8045 Graz, Austria
| | - Szilvia Bõsze
- Christian Doppler Laboratory for Microwave Chemistry (CDLMC) and Institute of Chemistry, Karl-Franzens-University Graz, Heinrichstrasse 28, A-8010 Graz, Austria, Research Group of Peptide Chemistry, Hungarian Academy of Sciences, Eötvös Loránd University, 1117 Budapest, Hungary, and piCHEM Forschungs und EntwicklungsgmbH, Kahngasse 20, A-8045 Graz, Austria
| | - Fritz Andreae
- Christian Doppler Laboratory for Microwave Chemistry (CDLMC) and Institute of Chemistry, Karl-Franzens-University Graz, Heinrichstrasse 28, A-8010 Graz, Austria, Research Group of Peptide Chemistry, Hungarian Academy of Sciences, Eötvös Loránd University, 1117 Budapest, Hungary, and piCHEM Forschungs und EntwicklungsgmbH, Kahngasse 20, A-8045 Graz, Austria
| | - C. Oliver Kappe
- Christian Doppler Laboratory for Microwave Chemistry (CDLMC) and Institute of Chemistry, Karl-Franzens-University Graz, Heinrichstrasse 28, A-8010 Graz, Austria, Research Group of Peptide Chemistry, Hungarian Academy of Sciences, Eötvös Loránd University, 1117 Budapest, Hungary, and piCHEM Forschungs und EntwicklungsgmbH, Kahngasse 20, A-8045 Graz, Austria
| |
Collapse
|
37
|
Pieters R, Rijkers D, Liskamp R. Application of the 1,3-Dipolar Cycloaddition Reaction in Chemical Biology: Approaches Toward Multivalent Carbohydrates and Peptides and Peptide-Based Polymers. ACTA ACUST UNITED AC 2007. [DOI: 10.1002/qsar.200740075] [Citation(s) in RCA: 61] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
38
|
Crich D, Bowers AA. Cyclic Thioanhydrides: Linchpins for Multicomponent Coupling Reactions Based on the Reaction of Thioacids with Electron-Deficient Sulfonamides and Azides. Org Lett 2007; 9:5323-5. [DOI: 10.1021/ol702570x] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- David Crich
- Department of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, Michigan 48230, and Department of Chemistry, University of Illinois at Chicago, Chicago, Illinois 60607
| | - Albert A. Bowers
- Department of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, Michigan 48230, and Department of Chemistry, University of Illinois at Chicago, Chicago, Illinois 60607
| |
Collapse
|
39
|
Crich D, Sana K, Guo S. Amino Acid and Peptide Synthesis and Functionalization by the Reaction of Thioacids with 2,4-Dinitrobenzenesulfonamides. Org Lett 2007; 9:4423-6. [PMID: 17900128 DOI: 10.1021/ol701583t] [Citation(s) in RCA: 79] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Readily prepared amino thioacids react at room temperature in DMF in the presence of cesium carbonate with 2,4-dinitrobenzenesulfonamides to give amides. When the sulfonamide is derived from an amino acid the method results in peptide bond formation, whereas the use of carbohydrate derived sulfonamides gives neoglycoconjugates.
Collapse
Affiliation(s)
- David Crich
- Chemistry Department, Wayne State University, 5101 Cass Avenue, Detroit, Michigan 48202, USA.
| | | | | |
Collapse
|