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Volpi G, Laurenti E, Rabezzana R. Imidazopyridine Family: Versatile and Promising Heterocyclic Skeletons for Different Applications. Molecules 2024; 29:2668. [PMID: 38893542 PMCID: PMC11173518 DOI: 10.3390/molecules29112668] [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: 05/03/2024] [Revised: 05/30/2024] [Accepted: 05/31/2024] [Indexed: 06/21/2024] Open
Abstract
In recent years, there has been increasing attention focused on various products belonging to the imidazopyridine family; this class of heterocyclic compounds shows unique chemical structure, versatile optical properties, and diverse biological attributes. The broad family of imidazopyridines encompasses different heterocycles, each with its own specific properties and distinct characteristics, making all of them promising for various application fields. In general, this useful category of aromatic heterocycles holds significant promise across various research domains, spanning from material science to pharmaceuticals. The various cores belonging to the imidazopyridine family exhibit unique properties, such as serving as emitters in imaging, ligands for transition metals, showing reversible electrochemical properties, and demonstrating biological activity. Recently, numerous noteworthy advancements have emerged in different technological fields, including optoelectronic devices, sensors, energy conversion, medical applications, and shining emitters for imaging and microscopy. This review intends to provide a state-of-the-art overview of this framework from 1955 to the present day, unveiling different aspects of various applications. This extensive literature survey may guide chemists and researchers in the quest for novel imidazopyridine compounds with enhanced properties and efficiency in different uses.
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Affiliation(s)
- Giorgio Volpi
- Department of Chemistry, University of Turin, Via Pietro Giuria 7, 10125 Torino, Italy; (E.L.)
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2
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Dichiara M, Simpson QJ, Quotadamo A, Jalani HB, Huang AX, Millard CC, Klug DM, Tse EG, Todd MH, Silva DG, da Silva Emery F, Carlson JE, Zheng SL, Vleminckx M, Matheeussen A, Caljon G, Pollastri MP, Sjö P, Perry B, Ferrins L. Structure-Property Optimization of a Series of Imidazopyridines for Visceral Leishmaniasis. ACS Infect Dis 2023; 9:1470-1487. [PMID: 37417544 PMCID: PMC10425983 DOI: 10.1021/acsinfecdis.3c00040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Indexed: 07/08/2023]
Abstract
Leishmaniasis is a collection of diseases caused by more than 20 Leishmania parasite species that manifest as either visceral, cutaneous, or mucocutaneous leishmaniasis. Despite the significant mortality and morbidity associated with leishmaniasis, it remains a neglected tropical disease. Existing treatments have variable efficacy, significant toxicity, rising resistance, and limited oral bioavailability, which necessitates the development of novel and affordable therapeutics. Here, we report on the continued optimization of a series of imidazopyridines for visceral leishmaniasis and a scaffold hop to a series of substituted 2-(pyridin-2-yl)-6,7-dihydro-5H-pyrrolo[1,2-a]imidazoles with improved absorption, distribution, metabolism, and elimination properties.
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Affiliation(s)
- Maria Dichiara
- Department
of Chemistry and Chemical Biology, Northeastern
University, Boston, Massachusetts 02115, United States
| | - Quillon J. Simpson
- Department
of Chemistry and Chemical Biology, Northeastern
University, Boston, Massachusetts 02115, United States
| | - Antonio Quotadamo
- Department
of Chemistry and Chemical Biology, Northeastern
University, Boston, Massachusetts 02115, United States
| | - Hitesh B. Jalani
- Department
of Chemistry and Chemical Biology, Northeastern
University, Boston, Massachusetts 02115, United States
| | - Anson X. Huang
- Department
of Chemistry and Chemical Biology, Northeastern
University, Boston, Massachusetts 02115, United States
| | - Caroline C. Millard
- Department
of Chemistry and Chemical Biology, Northeastern
University, Boston, Massachusetts 02115, United States
| | - Dana M. Klug
- School
of Pharmacy, University College London, London WC1N 1AX, U.K.
| | - Edwin G. Tse
- School
of Pharmacy, University College London, London WC1N 1AX, U.K.
| | - Matthew H. Todd
- School
of Pharmacy, University College London, London WC1N 1AX, U.K.
| | - Daniel Gedder Silva
- School
of Pharmacy, University College London, London WC1N 1AX, U.K.
- School of
Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo 14040-903, Brazil
| | - Flavio da Silva Emery
- School of
Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo 14040-903, Brazil
| | - J. Eric Carlson
- Rilas
Technologies, Inc, 150-W
New Boston Street, Woburn, Massachusetts 01801, United States
| | - Shao-Liang Zheng
- Department
of Chemistry and Chemical Biology, Harvard
University, Cambridge, Massachusetts 02138, United States
| | - Margot Vleminckx
- Laboratory
of Microbiology, Parasitology and Hygiene (LMPH), University of Antwerp, 2610 Wilrijk, Belgium
| | - An Matheeussen
- Laboratory
of Microbiology, Parasitology and Hygiene (LMPH), University of Antwerp, 2610 Wilrijk, Belgium
| | - Guy Caljon
- Laboratory
of Microbiology, Parasitology and Hygiene (LMPH), University of Antwerp, 2610 Wilrijk, Belgium
| | - Michael P. Pollastri
- Department
of Chemistry and Chemical Biology, Northeastern
University, Boston, Massachusetts 02115, United States
| | - Peter Sjö
- Drugs
for Neglected Diseases Initiative, 15 Chemin Camille Vidart, Geneva 1202, Switzerland
| | - Benjamin Perry
- Drugs
for Neglected Diseases Initiative, 15 Chemin Camille Vidart, Geneva 1202, Switzerland
| | - Lori Ferrins
- Department
of Chemistry and Chemical Biology, Northeastern
University, Boston, Massachusetts 02115, United States
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Volpi G. Luminescent imidazo[1,5‐a] pyridine scaffold: synthetic heterocyclization strategies overview and promising applications. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200171] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Giorgio Volpi
- University of Turin: Universita degli Studi di Torino Chemistry ITALY
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Quinoline-functionalized BODIPY dyes: Structural and photophysical properties. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2021.113686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Tyagi N, Kaur N, Sahoo SC, Venugopalan P. Photodynamic therapy applications of Re(I)‐BODIPY functionalized nanoparticles. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Nidhi Tyagi
- Energy and Environment Unit Institute of Nano Science and Technology Mohali India
| | - Navneet Kaur
- Energy and Environment Unit Institute of Nano Science and Technology Mohali India
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Florent M, Kyritsakas N, Planeix JM, Guenet A, Hosseini MW. Luminescent 1D heterometallic (Ir,Cd) coordination polymers based on bis-cyclometalated Ir(III) metallatectons and trinuclear Cd(II) dianionic nodes. Dalton Trans 2021; 50:15924-15934. [PMID: 34724012 DOI: 10.1039/d0dt00822b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Seven isostructural heterometallic luminescent (Ir,Cd) coordination polymers were prepared upon the combination of tris-chelate cationic Ir(III) complexes behaving as metalloligands with Cd(II) salts. Three octahedral Ir(III) complexes have been considered in the present report. They consist of a bipyridine unit functionalised with 3-pyridyl moieties as peripheral coordinating sites and two 2-phenylpyridyl cyclometalating derivatives. Three cadmium halide salts CdX2 (X = Cl, Br, I) were used and rearranged themselves during the self-assembly process with the metallatectons to afford a dianonic trinuclear Cd node [Cd3X8]2-. Seven out of the nine possible metallotecton-metal salt combinations could be characterised in the crystalline phase by X-ray diffraction on single crystals proving the isostructurality of the seven extended architectures studied. All of the CPs are luminescent with small shifts observed in the emission wavelength compared to the discrete complexes. Depending on the degree of fluorination of the two cyclometalating units, tuning of the emission wavelength of the discrete complexes as well as of the resulting coordination polymers is achieved.
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Affiliation(s)
- Maxime Florent
- Laboratoire de Tectonique Moléculaire, UMR Université de Strasbourg-CNRS 7140, icFRC, Université de Strasbourg, F-67000 Strasbourg, France.
| | - Nathalie Kyritsakas
- Laboratoire de Tectonique Moléculaire, UMR Université de Strasbourg-CNRS 7140, icFRC, Université de Strasbourg, F-67000 Strasbourg, France.
| | - Jean-Marc Planeix
- Laboratoire de Tectonique Moléculaire, UMR Université de Strasbourg-CNRS 7140, icFRC, Université de Strasbourg, F-67000 Strasbourg, France.
| | - Aurélie Guenet
- Laboratoire de Tectonique Moléculaire, UMR Université de Strasbourg-CNRS 7140, icFRC, Université de Strasbourg, F-67000 Strasbourg, France.
| | - Mir Wais Hosseini
- Laboratoire de Tectonique Moléculaire, UMR Université de Strasbourg-CNRS 7140, icFRC, Université de Strasbourg, F-67000 Strasbourg, France.
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Nath J, Tarai A, Baruah JB. Copper(II), Zinc(II), and Cadmium(II) Formylbenzoate Complexes: Reactivity and Emission Properties. ACS OMEGA 2019; 4:18444-18455. [PMID: 31720548 PMCID: PMC6844117 DOI: 10.1021/acsomega.9b02779] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Accepted: 10/17/2019] [Indexed: 05/11/2023]
Abstract
Synthesis, characterization, reactivity, and sensing properties of 4-formylbenzoate complexes of copper(II), zinc(II), and cadmium(II) possessing the 1,10-phenanthroline ancillary ligand are studied. The crystal structures of the (1,10-phenanthroline)bis(4-formylbenzoate)(aqua)copper(II) and (1,10-phenanthroline)bis(4-formylbenzo-ate)zinc(II) and a novel molecular complex comprising an assembly of mononuclear and dinuclear species of (1,10-phenanthroline)bis(4-formylbenzoate)cadmium(II) are reported. These zinc and cadmium complexes are fluorescent; they show differentiable sensitivity to detect three positional isomers of nitroaniline. The mechanism of sensing of nitroanilines by 1,10-phenanthroline and the complexes are studied by fluorescence titrations, photoluminescence decay, and dynamic light scattering. A plausible mechanism showing that 1,10-phenanthroline ligand-based emission quenched by electron transfer from the excited state of 1,10-phenanthroline to nitroaniline is supported by density functional theory calculations. In an anticipation to generate a fluorescent d10-copper(I) formylbenzoate complex by a mild reducing agent such as hydroxylamine hydrochloride for similar sensing of nitroaromatics as that of the d10-zinc and cadmium 4-formylbenzoate complexes, reactivity of d9-copper(II) with hydroxylamine hydrochloride in the presence of 4-formylbenzoic acid and 1,10-phenanthroline is studied. It did not provide the expected copper(I) complex but resulted in stoichiometry-dependent reactions of 4-formylbenzoic acid with hydroxylamine hydrochloride in the presence of copper(II) acetate and 1,10-phenanthroline. Depending on the stoichiometry of reactants, an inclusion complex of bis(1,10-phenanthroline)(chloro)copper(II) chloride with in situ-formed 4-((hydroxyimino)methyl)benzoic acid or copper(II) 4-(hydroxycarbamoyl)benzoate complex was formed. The self-assembly of the inclusion complex has the bis(1,10-phenanthroline)(chloro)copper(II) cation encapsulated in hydrogen-bonded chloride-hydrate assembly with 4-((hydroxyimino)methyl)benzoic acid.
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Liu X, Yang H, Liu W, Wang Y, Yang Y. Synthesis and Properties of New Alkyl Alanine Dipeptides Based on Difluoroboron β
-diketonates. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900600] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Xiaojuan Liu
- College of Chemistry; Chemical Engineering and Materials Science; Soochow University; 215123 Suzhou China
| | - Hong Yang
- College of Chemistry; Chemical Engineering and Materials Science; Soochow University; 215123 Suzhou China
| | - Wei Liu
- College of Chemistry; Chemical Engineering and Materials Science; Soochow University; 215123 Suzhou China
| | - Yong Wang
- College of Chemistry; Chemical Engineering and Materials Science; Soochow University; 215123 Suzhou China
| | - Yonggang Yang
- College of Chemistry; Chemical Engineering and Materials Science; Soochow University; 215123 Suzhou China
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Potocny AM, Teesdale JJ, Marangoz A, Yap GPA, Rosenthal J. Spectroscopic and 1O 2 Sensitization Characteristics of a Series of Isomeric Re(bpy)(CO) 3Cl Complexes Bearing Pendant BODIPY Chromophores. Inorg Chem 2019; 58:5042-5050. [PMID: 30942580 DOI: 10.1021/acs.inorgchem.9b00102] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Two new Re(I)bipyridyltricarbonyl chloride complexes, Re(BB3)(CO)3Cl and Re(BB4)(CO)3Cl, featuring BODIPY groups appended to the 5,5'- or 6,6'-positions of the bipyridine ligand, respectively, were synthesized as structurally isomeric compliments to a previously reported 4,4'-substituted homologue, Re(BB2)(CO)3Cl. X-ray crystal structures of the compounds show that the 4,4'-, 5,5'-, and 6,6'-substitution patterns place the BODIPY groups at progressively shorter distances of 9.43, 8.39, and 5.56 Å, respectively, from the complexes' Re centers. The photophysical properties of the isomeric complexes were investigated to ascertain the manner in which the heavy rhenium atom might induce intersystem crossing of the pendant BODIPY moieties positioned at progressively shorter through-space distances. Electronic absorption spectroscopy revealed that the three metal complexes retain the strong visible absorption features characteristic of the bpyBODIPY (BB2-BB4) ligands; however, the fluorescence of the parent borondipyrromethane appended ligands is attenuated by more than an order of magnitude in Re(BB2)(CO)3Cl and Re(BB3)(CO)3Cl and by more than two orders of magnitude in Re(BB4)(CO)3Cl. Furthermore, phosphorescence from Re(BB4)(CO)3Cl is observed under a nitrogen atmosphere, consistent with highly efficient ISC to the triplet-excited state. Singlet oxygen sensitization studies confirm that all three complexes produce singlet oxygen with quantum yields that increase as the distance of the BODIPY groups to the heavy rhenium center is decreased. The trends observed across the series of rhenium complexes with respect to emission and 1O2 sensitization properties can be rationalized in terms of the varied distal separation between the metal center and BODIPY groups in each system.
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Affiliation(s)
- Andrea M Potocny
- Department of Chemistry and Biochemistry , University of Delaware , Newark , Delaware 19716 , United States
| | - Justin J Teesdale
- Department of Chemistry and Biochemistry , University of Delaware , Newark , Delaware 19716 , United States
| | - Alize Marangoz
- Department of Chemistry and Biochemistry , University of Delaware , Newark , Delaware 19716 , United States
| | - Glenn P A Yap
- Department of Chemistry and Biochemistry , University of Delaware , Newark , Delaware 19716 , United States
| | - Joel Rosenthal
- Department of Chemistry and Biochemistry , University of Delaware , Newark , Delaware 19716 , United States
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