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Berrino E, Cantin T, Artault M, Beck S, Jessen C, Marrot J, Guégan F, Mingot A, Kornath A, Thibaudeau S. Accumulation, Characterization and Reactivity of Chiral Ammonium-Carboxonium Dications in Superacid. Angew Chem Int Ed Engl 2024; 63:e202404066. [PMID: 38587216 DOI: 10.1002/anie.202404066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 03/28/2024] [Accepted: 03/28/2024] [Indexed: 04/09/2024]
Abstract
The accumulation of chiral ammonium-oxocarbenium dications in superacid is evidenced by low-temperature NMR spectroscopy, X-ray diffraction analysis and confirmed by DFT calculations. Its potential for the diastereoselective remote hydrofunctionalization of non-activated alkene is also explored.
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Affiliation(s)
- Emanuela Berrino
- IC2MP UMR CNRS 7285, Université de Poitiers, 4 rue Michel, Brunet, 86073 Poitiers cedex 9, France
| | - Thomas Cantin
- IC2MP UMR CNRS 7285, Université de Poitiers, 4 rue Michel, Brunet, 86073 Poitiers cedex 9, France
| | - Maxime Artault
- IC2MP UMR CNRS 7285, Université de Poitiers, 4 rue Michel, Brunet, 86073 Poitiers cedex 9, France
| | - Stefanie Beck
- Department of Chemistry, Ludwig-Maximilian University of Munich, Butenandtstr. 5-13, D-81377, München, Germany
| | - Christoph Jessen
- Department of Chemistry, Ludwig-Maximilian University of Munich, Butenandtstr. 5-13, D-81377, München, Germany
| | - Jérôme Marrot
- UMR CNRS 8180, 45 avenue des États-Unis, 78035, Versailles Cedex, France
| | - Frédéric Guégan
- IC2MP UMR CNRS 7285, Université de Poitiers, 4 rue Michel, Brunet, 86073 Poitiers cedex 9, France
| | - Agnès Mingot
- IC2MP UMR CNRS 7285, Université de Poitiers, 4 rue Michel, Brunet, 86073 Poitiers cedex 9, France
| | - Andreas Kornath
- Department of Chemistry, Ludwig-Maximilian University of Munich, Butenandtstr. 5-13, D-81377, München, Germany
| | - Sébastien Thibaudeau
- IC2MP UMR CNRS 7285, Université de Poitiers, 4 rue Michel, Brunet, 86073 Poitiers cedex 9, France
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2
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Mattellone A, Corbisiero D, Cantelmi P, Martelli G, Palladino C, Tolomelli A, Cabri W, Ferrazzano L. Fast Solution-Phase and Liquid-Phase Peptide Syntheses (SolPSS and LPPS) Mediated by Biomimetic Cyclic Propylphosphonic Anhydride (T3P ®). Molecules 2023; 28:7183. [PMID: 37894662 PMCID: PMC10609394 DOI: 10.3390/molecules28207183] [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: 09/28/2023] [Revised: 10/15/2023] [Accepted: 10/16/2023] [Indexed: 10/29/2023] Open
Abstract
The growing applications of peptide-based therapeutics require the development of efficient protocols from the perspective of an industrial scale-up. T3P® (cyclic propylphosphonic anhydride) promotes amidation in the solution-phase through a biomimetic approach, similar to the activation of carboxylic moiety catalyzed by ATP-grasp enzymes in metabolic pathways. The T3P® induced coupling reaction was applied in this study to the solution-phase peptide synthesis (SolPPS). Peptide bond formation occurred in a few minutes with high efficiency and no epimerization, generating water-soluble by-products, both using N-Boc or N-Fmoc amino acids. The optimized protocol, which was successfully applied to the iterative synthesis of a pentapeptide, also allowed for a decrease in the solvent volume, thus improving process sustainability. The protocol was finally extended to the liquid-phase peptide synthesis (LPPS), where the isolation of the peptide was performed using precipitation, thus also showing the suitability of this coupling reagent to this emerging technique.
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Affiliation(s)
- Alexia Mattellone
- Tolomelli-Cabri/P4I Lab—Peptidomimetics and Peptides Targeting Protein-Protein Interaction, Department of Chemistry “Giacomo Ciamician”, Alma Mater Studiorum—University of Bologna, Via Gobetti 87, 40129 Bologna, Italy; (A.M.); (D.C.); (P.C.); (G.M.); (C.P.); (L.F.)
| | - Dario Corbisiero
- Tolomelli-Cabri/P4I Lab—Peptidomimetics and Peptides Targeting Protein-Protein Interaction, Department of Chemistry “Giacomo Ciamician”, Alma Mater Studiorum—University of Bologna, Via Gobetti 87, 40129 Bologna, Italy; (A.M.); (D.C.); (P.C.); (G.M.); (C.P.); (L.F.)
| | - Paolo Cantelmi
- Tolomelli-Cabri/P4I Lab—Peptidomimetics and Peptides Targeting Protein-Protein Interaction, Department of Chemistry “Giacomo Ciamician”, Alma Mater Studiorum—University of Bologna, Via Gobetti 87, 40129 Bologna, Italy; (A.M.); (D.C.); (P.C.); (G.M.); (C.P.); (L.F.)
| | - Giulia Martelli
- Tolomelli-Cabri/P4I Lab—Peptidomimetics and Peptides Targeting Protein-Protein Interaction, Department of Chemistry “Giacomo Ciamician”, Alma Mater Studiorum—University of Bologna, Via Gobetti 87, 40129 Bologna, Italy; (A.M.); (D.C.); (P.C.); (G.M.); (C.P.); (L.F.)
| | - Chiara Palladino
- Tolomelli-Cabri/P4I Lab—Peptidomimetics and Peptides Targeting Protein-Protein Interaction, Department of Chemistry “Giacomo Ciamician”, Alma Mater Studiorum—University of Bologna, Via Gobetti 87, 40129 Bologna, Italy; (A.M.); (D.C.); (P.C.); (G.M.); (C.P.); (L.F.)
| | - Alessandra Tolomelli
- Tolomelli-Cabri/P4I Lab—Peptidomimetics and Peptides Targeting Protein-Protein Interaction, Department of Chemistry “Giacomo Ciamician”, Alma Mater Studiorum—University of Bologna, Via Gobetti 87, 40129 Bologna, Italy; (A.M.); (D.C.); (P.C.); (G.M.); (C.P.); (L.F.)
- Consorzio C.I.N.M.P.I.S. (National Interuniversity Research Consortium in Innovative Synthesis Methodologies and Processes) c/o, Alma Mater Studiorum—University of Bologna, Via Gobetti 87, 40129 Bologna, Italy
| | - Walter Cabri
- Tolomelli-Cabri/P4I Lab—Peptidomimetics and Peptides Targeting Protein-Protein Interaction, Department of Chemistry “Giacomo Ciamician”, Alma Mater Studiorum—University of Bologna, Via Gobetti 87, 40129 Bologna, Italy; (A.M.); (D.C.); (P.C.); (G.M.); (C.P.); (L.F.)
- Consorzio C.I.N.M.P.I.S. (National Interuniversity Research Consortium in Innovative Synthesis Methodologies and Processes) c/o, Alma Mater Studiorum—University of Bologna, Via Gobetti 87, 40129 Bologna, Italy
| | - Lucia Ferrazzano
- Tolomelli-Cabri/P4I Lab—Peptidomimetics and Peptides Targeting Protein-Protein Interaction, Department of Chemistry “Giacomo Ciamician”, Alma Mater Studiorum—University of Bologna, Via Gobetti 87, 40129 Bologna, Italy; (A.M.); (D.C.); (P.C.); (G.M.); (C.P.); (L.F.)
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Ohwada T. 窒素原子を含む結合活性化学種の発見. YAKUGAKU ZASSHI 2023; 143:323-336. [PMID: 37005231 DOI: 10.1248/yakushi.22-00206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
Abstract
In this review, the authors review and explain their research on "Discovery of Bonding Active Species Containing Nitrogen Atoms" from the past to the present. The authors are interested in new chemical phenomena, especially in the activation of chemical bonds containing nitrogen atoms, and have conducted research to discover chemical bonds with new properties. The activated chemical bonds containing nitrogen atoms are the following (Fig. 1). (1) Rotationally activated C-N bonds by pyramidalization of amide nitrogen atoms (2) N-N bond cleavage ability with reduced bond strength by pyramidalization of nitrosamine nitrogen atoms (3) Transient hetero atom-N bond formation by neighboring group participation of a halogen electron to the nitrogen cation. (4) A unique carbon cation reaction involving nitrogen atoms, especially nitro groups (C-NO2 bond) and ammonium ions (C-NH3+ bond). These purely basic chemistry discoveries unexpectedly led to the creation of functional materials, especially biologically active molecules. We will explain how new chemical bonds led to the creation of new functions.
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Affiliation(s)
- Tomohiko Ohwada
- Graduate School of Pharmaceutical Sciences, The University of Tokyo
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Wu H, Sumita A, Otani Y, Ohwada T. Friedel-Crafts Acylation of Aminocarboxylic Acids in Strong Brønsted Acid Promoted by Lewis Base P 4O 10. J Org Chem 2022; 87:15224-15249. [PMID: 36318089 DOI: 10.1021/acs.joc.2c01761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The amino group in aminocarboxylic acids is sufficiently basic to be protonated in strong acids, and consequently, ionization of the carboxylic acid to an acylium ion is blocked due to charge-charge repulsion. Thus, acylation of aromatic compounds is significantly retarded in Friedel-Craft type reactions. We found that Friedel-Crafts acylation with aminocarboxylic acids can proceed smoothly even in a strong Brønsted acid (triflic acid, TfOH) if the Lewis base P4O10 is added. Here we describe the Friedel-Crafts acylation reactions of anthranilic acid and α- to δ-aminocarboxylic acids with benzene derivatives in the presence of P4O10. Non-amino-containing carboxylic acids as well as N-containing heteroaromatic carboxylic acids are available, and α-amino acids can be directly utilized without any protective group. Most substrates afford acylation products in high yields, although some epimerization/racemization may occur. Density functional theory (DFT) calculations suggested that P4O10 neutralizes the protonated amine, converting the N-H covalent bond to a N-hydrogen bond and allowing the carboxylic acid OH functionality to serve as a good leaving group.
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Affiliation(s)
- Hao Wu
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Akinari Sumita
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Yuko Otani
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Tomohiko Ohwada
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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Watanabe K, Terao N, Niwa T, Hosoya T. Direct 3-Acylation of Indolizines by Carboxylic Acids for the Practical Synthesis of Red Light-Releasable Caged Carboxylic Acids. J Org Chem 2021; 86:11822-11834. [PMID: 34279948 DOI: 10.1021/acs.joc.1c01244] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
To enhance the practicality of photouncaging system using 3-acyl-2-methoxyindolizines, direct acylation of indolizines with carboxylic acids was developed using condensation reagents, generally used for peptide coupling. This method allowed for caging a broad range of carboxylic acids with indolizines. The method enabled a facile synthesis of water-soluble caged bioactive carboxylic acids having an intramolecular photosensitizer. The efficient release of carboxylic acids from the synthesized caged compounds upon red light irradiation was confirmed in neutral buffered solutions.
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Affiliation(s)
- Kenji Watanabe
- Laboratory for Chemical Biology, RIKEN Center for Biosystems Dynamics Research (BDR), Kobe 650-0047, Japan
| | - Nodoka Terao
- Laboratory for Chemical Biology, RIKEN Center for Biosystems Dynamics Research (BDR), Kobe 650-0047, Japan
| | - Takashi Niwa
- Laboratory for Chemical Biology, RIKEN Center for Biosystems Dynamics Research (BDR), Kobe 650-0047, Japan
| | - Takamitsu Hosoya
- Laboratory for Chemical Biology, RIKEN Center for Biosystems Dynamics Research (BDR), Kobe 650-0047, Japan.,Laboratory of Chemical Bioscience, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), Chiyoda-ku, Tokyo 101-0062, Japan
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Klumpp DA, Anokhin MV. Superelectrophiles: Recent Advances. Molecules 2020; 25:E3281. [PMID: 32707680 PMCID: PMC7397018 DOI: 10.3390/molecules25143281] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 07/14/2020] [Accepted: 07/14/2020] [Indexed: 01/11/2023] Open
Abstract
Superelectrophiles are reactive species that often carry multiple positive charges. They have been useful in numerous synthetic methods and they often exhibit highly unusual reactivities. Recent advances in superelectrophile chemistry are discussed in this review.
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Affiliation(s)
- Douglas A. Klumpp
- Department of Chemistry and Biochemistry, Norther Illinois University, DeKalb, IL 60178, USA;
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Sumita A, Lee J, Otani Y, Ohwada T. Facile synthesis of 2,3-benzodiazepines using one-pot two-step phosphate-assisted acylation–hydrazine cyclization reactions. Org Biomol Chem 2018; 16:4013-4020. [DOI: 10.1039/c8ob00708j] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We present a one-pot two-step methodology, in which an unprotected amino is tolerated, for rapidly synthesizing 2,3-benzodiazepines via phosphate-assisted acylation reaction and hydrazine cyclization reaction.
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Affiliation(s)
- Akinari Sumita
- Graduate School of Pharmaceutical Sciences
- The University of Tokyo
- Tokyo
- Japan
| | - Jinhee Lee
- Graduate School of Pharmaceutical Sciences
- The University of Tokyo
- Tokyo
- Japan
- Lloyd L. Gregory School of Pharmacy
| | - Yuko Otani
- Graduate School of Pharmaceutical Sciences
- The University of Tokyo
- Tokyo
- Japan
| | - Tomohiko Ohwada
- Graduate School of Pharmaceutical Sciences
- The University of Tokyo
- Tokyo
- Japan
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Sumita A, Otani Y, Ohwada T. Electrophilic activation of aminocarboxylic acid by phosphate ester promotes Friedel-Crafts acylation by overcoming charge-charge repulsion. Org Biomol Chem 2017; 15:9398-9407. [PMID: 29094123 DOI: 10.1039/c7ob02158e] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Friedel-Crafts acylation of aromatic compounds with aminocarboxylic acids proceeds efficiently in the presence of a tailored phosphate ester and a strong Brønsted acid, despite the strong charge-charge repulsion associated with acylium ion formation. Here, we investigate the mechanism of this electrophilic aromatic acylation reaction, focusing on how the aminocarboxylic acid is activated by the phosphate ester and how the charge-charge repulsion is overcome. In the first step of the reaction, an acyl phosphate is generated from the aminocarboxylic acid through the intervention of the phosphate ester, which possesses three methyl salicylate ester linkages. The o-methyl salicylates enhance the reactivity of the phosphate ester via a protonation-induced conformational change, thereby overwhelming the charge-charge repulsion associated with the acylium ion formation. Weakening of the resonance interaction in the C(O)-O(P) bond by the lone-pair electrons of the ether oxygen atom of the carboxylic acid functionality contributes to the rapid formation of the acylium ion. Thus, our results show that the formation of aromatic ketones from various carboxylic acids proceeds because the strong leaving ability of the acyl phosphate overwhelms the charge-charge repulsion associated with the formation of the acylium ion. This information will be helpful to improve the design of tailored phosphate reagents.
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Affiliation(s)
- Akinari Sumita
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.
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