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Agouram N, El Hadrami EM, Bentama A. 1,2,3-Triazoles as Biomimetics in Peptide Science. Molecules 2021; 26:2937. [PMID: 34069302 PMCID: PMC8156386 DOI: 10.3390/molecules26102937] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 05/05/2021] [Accepted: 05/05/2021] [Indexed: 01/10/2023] Open
Abstract
Natural peptides are an important class of chemical mediators, essential for most vital processes. What limits the potential of the use of peptides as drugs is their low bioavailability and enzymatic degradation in vivo. To overcome this limitation, the development of new molecules mimicking peptides is of great importance for the development of new biologically active molecules. Therefore, replacing the amide bond in a peptide with a heterocyclic bioisostere, such as the 1,2,3-triazole ring, can be considered an effective solution for the synthesis of biologically relevant peptidomimetics. These 1,2,3-triazoles may have an interesting biological activity, because they behave as rigid link units, which can mimic the electronic properties of amide bonds and show bioisosteric effects. Additionally, triazole can be used as a linker moiety to link peptides to other functional groups.
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Affiliation(s)
- Naima Agouram
- Laboratory of Applied Organic Chemistry, Faculty of Science and Technology, Sidi Mohammed Ben Abdellah University, Immouzer Road, Fez 30050, Morocco; (E.M.E.H.); (A.B.)
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Jepsen TH, Glibstrup E, Crestey F, Jensen AA, Kristensen JL. A strategic approach to [6,6]-bicyclic lactones: application towards the CD fragment of DHβE. Beilstein J Org Chem 2017; 13:988-994. [PMID: 28684978 PMCID: PMC5480346 DOI: 10.3762/bjoc.13.98] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Accepted: 05/11/2017] [Indexed: 12/19/2022] Open
Abstract
We report an effective synthetic protocol to access [6,6]-bicyclic lactone moieties through a regio- and stereoselective intramolecular Mizoroki–Heck cross-coupling reaction followed by a 6π-electrocyclization. This method enabled the first synthesis of the elusive CD fragment of the Erythrina alkaloid DHβE. Preliminary pharmacological evaluations support the notion that the key pharmacophores of DHβE are located in the A and B rings.
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Affiliation(s)
- Tue Heesgaard Jepsen
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen, Denmark
| | - Emil Glibstrup
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen, Denmark
| | - François Crestey
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen, Denmark
| | - Anders A Jensen
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen, Denmark
| | - Jesper Langgaard Kristensen
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen, Denmark
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Ahmed I, Tia R, Adei E. Exploring the peri-, chemo-, and regio-selectivity of addition of manganese metal oxides MnO3L (L = Cl−, O−, OCH3, CH3) to substituted ketenes: A computational study. Inorganica Chim Acta 2016. [DOI: 10.1016/j.ica.2015.11.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Ahmed I, Tia R, Adei E. A density functional theory study of the mechanisms of addition of transition metal oxides ReO3L(L = Cl-, O-, OCH3, CH3) to substituted ketenes. JOURNAL OF THEORETICAL & COMPUTATIONAL CHEMISTRY 2015. [DOI: 10.1142/s0219633615500352] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Ketenes are excellent precursors for catalytic asymmetric reactions, creating chiral centers mainly through addition across their C = C bonds. Density functional theory (DFT) calculations at the MO6/LACVP* and B3LYP/LACVP* levels of theory were employed in a systematic investigation of the peri-, chemo- and regio-selectivity of the addition of transition metal oxo complexes of the type ReO 3 L ( L = Cl -, O -, OCH 3, CH 3) to substituted ketenes O = C = C ( CH 3)(X) [ X = CH 3, H , CN , Ph ] with the aim of elucidating the effects of substituents on the mechanism of the reactions. The [2 + 2] addition pathway across the C = C or C = O (depending on the ligand) is the most preferred in the reactions of dimethyl ketene with all the metal complexes studied. The [2 + 2] pathway is also the most preferred in the reactions of ReO 3 Cl with all the substituted ketenes studied except when X = Cl . Thus of all the reactions studied, it is only the reaction of ReO 3 Cl with O = C = C ( CH 3)( Cl ) that prefers the [3 + 2] addition pathway. Reactions of dimethyl ketene with ReO 3 L favors addition across C = O bonds of the ketene when L = O - and CH 3 but favors addition across C = C bonds when L = OCH 3 and Cl . In the reactions of ReO 3 Cl with substituted ketenes, addition across C = O bonds is favored only when X = H while addition across C = C bonds is favored when X = CH 3, Cl , Ph , CN . The reactions of dimethyl ketene with ReO 3 L will most likely lead to the formation of an ester precursor in each case. A zwitterionic intermediate is formed in the reactions except in the reactions of [Formula: see text]. The order in the activation energies of the reactions of dimethyl ketenes with the metal complexes ReO 3 L with respect to changing ligand L is O - < CH 3 O - < Cl - < CH 3 while the order in reaction energies is CH 3 < CH 3 O - < O - < Cl -. For the reactions of substituted ketenes with ReO 3 Cl , the order in activation barriers is CH 3 < Ph < CN < Cl < H while the reaction energies follow the order Cl < CH 3 < H < Ph < CN . In the reactions of dimethyl ketenes with ReO 3 L , the trend in the selectivity of the reactions with respect to ligand L is Cl - < CH 3 O - < CH 3 < O - while the trend in selectivity is CH 3 < CN < Cl < Ph in the reactions of ReO 3 Cl with substituted ketenes. It is seen that reactions involving a change in oxidation state of metal from the reactant to product have high activation barriers while reactions that do not involve a change in oxidation state have low activation barriers. For both [3 + 2] and [2 + 2] additions, low activation barriers are obtained when the substituent on the ketene is electron-donating while high activation barriers are obtained when the substituent is electron-withdrawing.
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Affiliation(s)
- Issahaku Ahmed
- Department of Chemistry, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Richard Tia
- Department of Chemistry, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Evans Adei
- Department of Chemistry, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
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Mindich AL, Bokach NA, Kuznetsov ML, Starova GL, Zhdanov AP, Zhizhin KY, Miltsov SA, Kuznetsov NT, Kukushkin VY. Borylated Tetrazoles from Cycloaddition of Azide Anions to Nitrilium Derivatives of closo-Decaborate Clusters. Organometallics 2013. [DOI: 10.1021/om400892x] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Aleksey L. Mindich
- Department
of Chemistry, Saint Petersburg State University, Universitetsky Pr. 26, 198504 Stary Petergof, Russian Federation
| | - Nadezhda A. Bokach
- Department
of Chemistry, Saint Petersburg State University, Universitetsky Pr. 26, 198504 Stary Petergof, Russian Federation
| | - Maxim L. Kuznetsov
- Centro
de Química Estrutural, Complexo I, Instituto Superior Técnico, Universidade Técnica de Lisboa, Avenida Rovisco
Pais, 1049-001 Lisbon, Portugal
| | - Galina L. Starova
- Department
of Chemistry, Saint Petersburg State University, Universitetsky Pr. 26, 198504 Stary Petergof, Russian Federation
| | - Andrey P. Zhdanov
- N. S. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninsky Pr. 31, 119991 Moscow, Russian Federation
| | - Konstantin Yu. Zhizhin
- N. S. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninsky Pr. 31, 119991 Moscow, Russian Federation
| | - Serguei A. Miltsov
- Department
of Chemistry, Saint Petersburg State University, Universitetsky Pr. 26, 198504 Stary Petergof, Russian Federation
| | - Nikolay T. Kuznetsov
- N. S. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninsky Pr. 31, 119991 Moscow, Russian Federation
| | - Vadim Yu. Kukushkin
- Department
of Chemistry, Saint Petersburg State University, Universitetsky Pr. 26, 198504 Stary Petergof, Russian Federation
- Institute of Macromolecular Compounds, Russian Academy
of Sciences, V.O. Bolshoi
Pr. 31, 199004 Saint
Petersburg, Russian Federation
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Würdemann M, Christoffers J. Nitrile Oxide versus Nitrone - Switching Regioselectivity of Intramolecular 1,3-Dipolar Cycloadditions towards the Preparation of Aminopiperidinecarboxylates. European J Org Chem 2013. [DOI: 10.1002/ejoc.201301039] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Ke Z, Chow HF, Chan MC, Liu Z, Sze KH. Head-to-Tail Dimerization and Organogelating Properties of Click Peptidomimetics. Org Lett 2011; 14:394-7. [DOI: 10.1021/ol2031685] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zhihai Ke
- Department of Chemistry, The Center of Novel Functional Molecules, State Key Laboratory of Synthetic Chemistry, and Institute of Molecular Functional Materials (UGC-AoE Scheme), The Chinese University of Hong Kong, Shatin, Hong Kong, and Department of Microbiology, The University of Hong Kong, Hong Kong
| | - Hak-Fun Chow
- Department of Chemistry, The Center of Novel Functional Molecules, State Key Laboratory of Synthetic Chemistry, and Institute of Molecular Functional Materials (UGC-AoE Scheme), The Chinese University of Hong Kong, Shatin, Hong Kong, and Department of Microbiology, The University of Hong Kong, Hong Kong
| | - Man-Chor Chan
- Department of Chemistry, The Center of Novel Functional Molecules, State Key Laboratory of Synthetic Chemistry, and Institute of Molecular Functional Materials (UGC-AoE Scheme), The Chinese University of Hong Kong, Shatin, Hong Kong, and Department of Microbiology, The University of Hong Kong, Hong Kong
| | - Zhifeng Liu
- Department of Chemistry, The Center of Novel Functional Molecules, State Key Laboratory of Synthetic Chemistry, and Institute of Molecular Functional Materials (UGC-AoE Scheme), The Chinese University of Hong Kong, Shatin, Hong Kong, and Department of Microbiology, The University of Hong Kong, Hong Kong
| | - Kong-Hung Sze
- Department of Chemistry, The Center of Novel Functional Molecules, State Key Laboratory of Synthetic Chemistry, and Institute of Molecular Functional Materials (UGC-AoE Scheme), The Chinese University of Hong Kong, Shatin, Hong Kong, and Department of Microbiology, The University of Hong Kong, Hong Kong
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ClickEnam. 1. Synthesis of novel 1,4-disubsituted-[1,2,3]-triazole-derived β-aminovinyl trifluoromethylated ketones and their copper(II) complexes. J Fluor Chem 2011. [DOI: 10.1016/j.jfluchem.2011.05.011] [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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Affiliation(s)
- Daniel Sejer Pedersen
- Department of Medicinal Chemistry, University of Copenhagen Universitetsparken 2, 2100 Copenhagen, Denmark, Fax: +45‐3533‐6122
| | - Andrew Abell
- School of Chemistry and Physics, University of Adelaide North Terrace, South Australia 5005, Australia
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