1
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Tang J, Lu F, Sun Y, Yang Z, Zhang E, Lv J. Relay Copper-Catalyzed Synthesis of Imidazo[1,5- a]pyridine Scaffolds from Phenylalanine and Halohydrocarbon. J Org Chem 2023. [PMID: 38016102 DOI: 10.1021/acs.joc.3c01585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2023]
Abstract
An efficient and straightforward strategy to synthesize imidazo[1,5-a]pyridine compounds from phenylalanine and halohydrocarbon has been successfully developed. The protocol features a relay copper-catalyzed reaction involving intermolecular C-O coupling and intramolecular C-N cyclization, providing an approach to access a diverse range of imidazo[1,5-a]pyridine derivatives with unique aza quaternary carbon centers.
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Affiliation(s)
- Jian Tang
- Key Laboratory of Catalytic Conversion and Clean Energy in Universities of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, P. R. China
| | - Fengjie Lu
- Key Laboratory of Catalytic Conversion and Clean Energy in Universities of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, P. R. China
| | - Yi Sun
- Key Laboratory of Catalytic Conversion and Clean Energy in Universities of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, P. R. China
| | - Zhiyu Yang
- Key Laboratory of Catalytic Conversion and Clean Energy in Universities of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, P. R. China
| | - Ensheng Zhang
- Key Laboratory of Catalytic Conversion and Clean Energy in Universities of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, P. R. China
| | - Jingwei Lv
- Key Laboratory of Catalytic Conversion and Clean Energy in Universities of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, P. R. China
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2
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Herrero-Gómez P, Calupitan JP, Ilyn M, Berdonces-Layunta A, Wang T, de Oteyza DG, Corso M, González-Moreno R, Rivilla I, Aparicio B, Aranburu AI, Freixa Z, Monrabal F, Cossío FP, Gómez-Cadenas JJ, Rogero C. Ba +2 ion trapping using organic submonolayer for ultra-low background neutrinoless double beta detector. Nat Commun 2022; 13:7741. [PMID: 36517491 PMCID: PMC9750972 DOI: 10.1038/s41467-022-35153-0] [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: 02/10/2022] [Accepted: 11/21/2022] [Indexed: 12/15/2022] Open
Abstract
If neutrinos are their own antiparticles the otherwise-forbidden nuclear reaction known as neutrinoless double beta decay can occur. The very long lifetime expected for these exceptional events makes its detection a daunting task. In order to conduct an almost background-free experiment, the NEXT collaboration is investigating novel synthetic molecular sensors that may capture the Ba dication produced in the decay of certain Xe isotopes in a high-pressure gas experiment. The use of such molecular detectors immobilized on surfaces must be explored in the ultra-dry environment of a xenon gas chamber. Here, using a combination of highly sensitive surface science techniques in ultra-high vacuum, we demonstrate the possibility of employing the so-called Fluorescent Bicolor Indicator as the molecular component of the sensor. We unravel the ion capture process for these molecular indicators immobilized on a surface and explain the origin of the emission fluorescence shift associated to the ion trapping.
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Affiliation(s)
- P Herrero-Gómez
- Centro de Física de Materiales (CSIC-UPV/EHU), San Sebastián, E-20018, Spain
- Donostia International Physics Center (DIPC), San Sebastián, E-20018, Spain
| | - J P Calupitan
- Centro de Física de Materiales (CSIC-UPV/EHU), San Sebastián, E-20018, Spain
| | - M Ilyn
- Centro de Física de Materiales (CSIC-UPV/EHU), San Sebastián, E-20018, Spain
| | - A Berdonces-Layunta
- Centro de Física de Materiales (CSIC-UPV/EHU), San Sebastián, E-20018, Spain
- Donostia International Physics Center (DIPC), San Sebastián, E-20018, Spain
| | - T Wang
- Centro de Física de Materiales (CSIC-UPV/EHU), San Sebastián, E-20018, Spain
- Donostia International Physics Center (DIPC), San Sebastián, E-20018, Spain
| | - D G de Oteyza
- Centro de Física de Materiales (CSIC-UPV/EHU), San Sebastián, E-20018, Spain
- Donostia International Physics Center (DIPC), San Sebastián, E-20018, Spain
- Ikerbasque, Basque Foundation for Science, Bilbao, E-48009, Spain
| | - M Corso
- Centro de Física de Materiales (CSIC-UPV/EHU), San Sebastián, E-20018, Spain
- Donostia International Physics Center (DIPC), San Sebastián, E-20018, Spain
| | - R González-Moreno
- Centro de Física de Materiales (CSIC-UPV/EHU), San Sebastián, E-20018, Spain
- Donostia International Physics Center (DIPC), San Sebastián, E-20018, Spain
| | - I Rivilla
- Donostia International Physics Center (DIPC), San Sebastián, E-20018, Spain
- Ikerbasque, Basque Foundation for Science, Bilbao, E-48009, Spain
- Department of Organic Chemistry I, Centro de Innovación en Química Avanzada (ORFEO-CINQA), University of the Basque Country (UPV/EHU), San Sebastián, E-20018, Spain
| | - B Aparicio
- Department of Organic Chemistry I, Centro de Innovación en Química Avanzada (ORFEO-CINQA), University of the Basque Country (UPV/EHU), San Sebastián, E-20018, Spain
| | - A I Aranburu
- Department of Applied Chemistry, University of the Basque Country (UPV/EHU), San Sebastián, E-20018, Spain
| | - Z Freixa
- Ikerbasque, Basque Foundation for Science, Bilbao, E-48009, Spain
- Department of Applied Chemistry, University of the Basque Country (UPV/EHU), San Sebastián, E-20018, Spain
| | - F Monrabal
- Donostia International Physics Center (DIPC), San Sebastián, E-20018, Spain
- Ikerbasque, Basque Foundation for Science, Bilbao, E-48009, Spain
| | - F P Cossío
- Donostia International Physics Center (DIPC), San Sebastián, E-20018, Spain
- Department of Organic Chemistry I, Centro de Innovación en Química Avanzada (ORFEO-CINQA), University of the Basque Country (UPV/EHU), San Sebastián, E-20018, Spain
| | - J J Gómez-Cadenas
- Donostia International Physics Center (DIPC), San Sebastián, E-20018, Spain
- Ikerbasque, Basque Foundation for Science, Bilbao, E-48009, Spain
| | - C Rogero
- Centro de Física de Materiales (CSIC-UPV/EHU), San Sebastián, E-20018, Spain.
- Donostia International Physics Center (DIPC), San Sebastián, E-20018, Spain.
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3
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Wang L, Zheng X, Zheng Q, Li Z, Wu J, Gao G. Thioether-Assisted Cu-Catalyzed C5-H Arylation of Imidazo[1,5- a]pyridines. Org Lett 2022; 24:3834-3838. [PMID: 35609286 DOI: 10.1021/acs.orglett.2c01404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A Cu-catalyzed regioselective C5-H arylation of imidazo[1,5-a]pyridines with aryl iodides was achieved with the assistance of an ethylthio group at the C3 position. This directing group could be easily removed to furnish a range of 5-(hetero)arylimidazo[1,5-a]pyridine derivatives. The reaction tolerates a variety of functionalities and is compatible with sterically hindered substrates.
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Affiliation(s)
- Linhua Wang
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, Sichuan 610064, People's Republic of China
| | - Xuesong Zheng
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, Sichuan 610064, People's Republic of China
| | - Qinze Zheng
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, Sichuan 610064, People's Republic of China
| | - Zhenlong Li
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, Sichuan 610064, People's Republic of China
| | - Jian Wu
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, Sichuan 610064, People's Republic of China
| | - Ge Gao
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, Sichuan 610064, People's Republic of China
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4
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Borissov A, Maurya YK, Moshniaha L, Wong WS, Żyła-Karwowska M, Stępień M. Recent Advances in Heterocyclic Nanographenes and Other Polycyclic Heteroaromatic Compounds. Chem Rev 2022; 122:565-788. [PMID: 34850633 PMCID: PMC8759089 DOI: 10.1021/acs.chemrev.1c00449] [Citation(s) in RCA: 215] [Impact Index Per Article: 107.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Indexed: 12/21/2022]
Abstract
This review surveys recent progress in the chemistry of polycyclic heteroaromatic molecules with a focus on structural diversity and synthetic methodology. The article covers literature published during the period of 2016-2020, providing an update to our first review of this topic (Chem. Rev. 2017, 117 (4), 3479-3716).
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Affiliation(s)
| | | | | | | | | | - Marcin Stępień
- Wydział Chemii, Uniwersytet
Wrocławski, ul. F. Joliot-Curie 14, 50-383 Wrocław, Poland
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5
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Yamagami A, Kiyotaki K, Wakabayashi S, Egami N, Kawano K, Futaki S, Imayoshi A, Tsubaki K. Synthesis and Properties of V-Shaped Xanthene Dyes with Tunable and Predictable Absorption and Emission Wavelengths. J Org Chem 2022; 87:2336-2344. [PMID: 35021008 DOI: 10.1021/acs.joc.1c02139] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
V-shaped xanthene dyes capable of predicting absorption and emission wavelengths are described. These dyes were synthesized by bridging a xanthene ring and an aryl moiety of fluorescein through ether covalent bonds. These dyes showed longer absorption and emission wavelengths than those of the parent fluorescein. Furthermore, substituents introduced on the aryl moiety mainly affected the lowest unoccupied molecular orbital energy level of the molecule. Therefore, the Hammett substituent constants could be used to predict the absorption and emission wavelengths of the compound.
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Affiliation(s)
- Akari Yamagami
- Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, 1-5 Shimogamo Hangi-cho, Sakyo-ku, Kyoto, Kyoto 606-8522, Japan
| | - Kotaro Kiyotaki
- Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, 1-5 Shimogamo Hangi-cho, Sakyo-ku, Kyoto, Kyoto 606-8522, Japan
| | - Sae Wakabayashi
- Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, 1-5 Shimogamo Hangi-cho, Sakyo-ku, Kyoto, Kyoto 606-8522, Japan
| | - Naoki Egami
- Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, 1-5 Shimogamo Hangi-cho, Sakyo-ku, Kyoto, Kyoto 606-8522, Japan
| | - Kenichi Kawano
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Shiroh Futaki
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Ayumi Imayoshi
- Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, 1-5 Shimogamo Hangi-cho, Sakyo-ku, Kyoto, Kyoto 606-8522, Japan
| | - Kazunori Tsubaki
- Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, 1-5 Shimogamo Hangi-cho, Sakyo-ku, Kyoto, Kyoto 606-8522, Japan
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6
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Hui J, Ma Y, Zhao J, Cao H. Recent advances in the synthesis of indolizine and its derivatives by radical cyclization/cross-coupling. Org Biomol Chem 2021; 19:10245-10258. [PMID: 34792087 DOI: 10.1039/d1ob01431e] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Indolizine is a nitrogen-containing heterocycle that has a variety of potential biological activities, and some indolizine derivatives with excellent fluorescence properties can even be used as organic fluorescent molecules for biological and material applications. Thus, many approaches for their synthesis have been developed. Among them, radical-induced synthetic approaches are receiving increasing attention owing to their unique advantages, such as efficient heterocycle construction, efficient C-C or C-X bond construction, and high atom- and step-economy. This review systematically examines the current and latest synthetic strategies using radical species or radical intermediates for synthesizing indolizines and their derivatives. This review is classified into two parts based on the type of building blocks used for indolizine ring construction and the type of radical trigger for indolizine derivative construction. We anticipate that this review will provide a deep understanding of this topic, and ultimately help researchers to develop novel approaches for the synthesis of indolizine and its derivatives.
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Affiliation(s)
- Jieru Hui
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, P. R. of China.
| | - Yanlong Ma
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, P. R. of China.
| | - Jiaji Zhao
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, P. R. of China.
| | - Hua Cao
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, P. R. of China.
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7
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Heindl S, Riomet M, Matyasovsky J, Lemmerer M, Malzer N, Maulide N. Chemoselektive γ-Oxidation von β,γ-ungesättigten Amiden mit TEMPO. ANGEWANDTE CHEMIE (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 133:19271-19275. [PMID: 38505148 PMCID: PMC10946935 DOI: 10.1002/ange.202104023] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Revised: 06/02/2021] [Indexed: 02/05/2023]
Abstract
AbstractEin chemoselektives und robustes Protokoll zur γ‐Oxidation von β,γ‐ungesättigten Amiden wird dargelegt. Bei dieser Methode ermöglicht elektrophile Amidaktivierung eine bei ungesättigten Amiden bisher selten angewendete regioselektive Reaktion mit TEMPO, die zu γ‐aminoxylierten α,β‐ungesättigten Amiden führt. Radikalische Zyklisierungen und Oxidationen der synthetisierten Produkte untermauern die Nützlichkeit der hergestellten Verbindungen.
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Affiliation(s)
- Sebastian Heindl
- Institut für Organische ChemieUniversität WienWähringer Straße 381090WienÖsterreich
| | - Margaux Riomet
- Institut für Organische ChemieUniversität WienWähringer Straße 381090WienÖsterreich
| | - Ján Matyasovsky
- Institut für Organische ChemieUniversität WienWähringer Straße 381090WienÖsterreich
| | - Miran Lemmerer
- Institut für Organische ChemieUniversität WienWähringer Straße 381090WienÖsterreich
| | - Nicolas Malzer
- Institut für Organische ChemieUniversität WienWähringer Straße 381090WienÖsterreich
| | - Nuno Maulide
- Institut für Organische ChemieUniversität WienWähringer Straße 381090WienÖsterreich
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8
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Freixa Z, Rivilla I, Monrabal F, Gómez-Cadenas JJ, Cossío FP. Bicolour fluorescent molecular sensors for cations: design and experimental validation. Phys Chem Chem Phys 2021; 23:15440-15457. [PMID: 34264251 PMCID: PMC8317197 DOI: 10.1039/d1cp01203g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Accepted: 06/17/2021] [Indexed: 11/21/2022]
Abstract
Molecular entities whose fluorescence spectra are different when they bind metal cations are termed bicolour fluorescent molecular sensors. The basic design criteria of this kind of compound are presented and the different fluorescent responses are discussed in terms of their chemical behaviour and electronic features. These latter elements include intramolecular charge transfer (ICT), formation of intramolecular and intermolecular excimer/exciplex complexes and Förster resonance energy transfer (FRET). Changes in the electronic properties of the fluorophore based on the decoupling between its constitutive units upon metal binding are also discussed. The possibility of generating fluorescent bicolour indicators that can capture metal cations in the gas phase and at solid-gas interfaces is also discussed.
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Affiliation(s)
- Zoraida Freixa
- Ikerbasque, Basque Foundation for Science, 48009 Bilbao, Spain. and Department of Applied Chemistry, Faculty of Chemistry, University of the Basque Country (UPV/EHU), 20018 San Sebastián/Donostia, Spain
| | - Iván Rivilla
- Ikerbasque, Basque Foundation for Science, 48009 Bilbao, Spain. and Donostia International Physics Center (DIPC), 20018 San Sebastián/Donostia, Spain
| | - Francesc Monrabal
- Ikerbasque, Basque Foundation for Science, 48009 Bilbao, Spain. and Donostia International Physics Center (DIPC), 20018 San Sebastián/Donostia, Spain
| | - Juan J Gómez-Cadenas
- Ikerbasque, Basque Foundation for Science, 48009 Bilbao, Spain. and Donostia International Physics Center (DIPC), 20018 San Sebastián/Donostia, Spain
| | - Fernando P Cossío
- Donostia International Physics Center (DIPC), 20018 San Sebastián/Donostia, Spain and Department of Organic Chemistry I, Faculty of Chemistry, University of the Basque Country (UPV/EHU), 20018 San Sebastián/Donostia, Spain
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9
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Heindl S, Riomet M, Matyasovsky J, Lemmerer M, Malzer N, Maulide N. Chemoselective γ-Oxidation of β,γ-Unsaturated Amides with TEMPO. Angew Chem Int Ed Engl 2021; 60:19123-19127. [PMID: 34146371 PMCID: PMC8456850 DOI: 10.1002/anie.202104023] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Revised: 06/02/2021] [Indexed: 12/23/2022]
Abstract
A chemoselective and robust protocol for the γ‐oxidation of β,γ‐unsaturated amides is reported. In this method, electrophilic amide activation, in a rare application to unsaturated amides, enables a regioselective reaction with TEMPO resulting in the title products. Radical cyclisation reactions and oxidation of the synthesised products highlight the synthetic utility of the products obtained.
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Affiliation(s)
- Sebastian Heindl
- Institute of Organic Chemistry, University of Vienna, Währinger Strasse 38, 1090, Vienna, Austria
| | - Margaux Riomet
- Institute of Organic Chemistry, University of Vienna, Währinger Strasse 38, 1090, Vienna, Austria
| | - Ján Matyasovsky
- Institute of Organic Chemistry, University of Vienna, Währinger Strasse 38, 1090, Vienna, Austria
| | - Miran Lemmerer
- Institute of Organic Chemistry, University of Vienna, Währinger Strasse 38, 1090, Vienna, Austria
| | - Nicolas Malzer
- Institute of Organic Chemistry, University of Vienna, Währinger Strasse 38, 1090, Vienna, Austria
| | - Nuno Maulide
- Institute of Organic Chemistry, University of Vienna, Währinger Strasse 38, 1090, Vienna, Austria
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10
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Kurian J, Shurooque KS, Ramkumar V, Chakkumkumarath L, Kannoth M M. Delocalization Effects and Tunable Emission in a Class of Charged Cyclazines with Nitrogen on the Periphery. Org Lett 2021; 23:3354-3358. [PMID: 33904737 DOI: 10.1021/acs.orglett.1c00827] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A new class of cyclazine analogues with periphery reminiscent of an aza[10]annulene framework, tethered internally by an sp3 carbon, is presented. In depth structure analysis based on NMR and X-ray diffraction data gave a deeper insight into the effect of electron delocalization on their structure and properties. A characteristic change in chemical shift positions suggested an aromatic ring current in these systems. Attractive emission properties in solid and solution states involving charge transfer is another highlight.
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Affiliation(s)
- Jais Kurian
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, India
| | - Kanneth S Shurooque
- Department of Chemistry, National Institute of Technology Calicut, Kerala 673 601, India
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11
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Babaev EV, Shadrin IA. Indolizines and Their Hetero/Benzo Derivatives in Reactions of [8+2] Cycloaddition. Molecules 2021; 26:molecules26072050. [PMID: 33916655 PMCID: PMC8038407 DOI: 10.3390/molecules26072050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 03/30/2021] [Accepted: 03/30/2021] [Indexed: 11/16/2022] Open
Abstract
Peculiarities of [8+2] cycloaddition of acetylenes to indolizines are reviewed. Especially mentioned are indolizines with leaving groups at positions 3 and 5. Cycloaddition to aza- and benzo derivatives are reviewed, as well as 1,10-cyclizations and processes leading to cyclazines where indolizines are intermediates. Mechanistic features (adducts and cycloadducts) and theoretical aspects (one- or two-steps mechanism) are reviewed.
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Affiliation(s)
- Eugene V. Babaev
- Chemistry Department, Moscow State University, Leninskie Gory, 1 Str. 3, 119899 Moscow, Russia;
- Higher School of Economics, National Research University, 7 Vavilova Str., 117312 Moscow, Russia
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky Ave., 119991 Moscow, Russia
- Correspondence: ; Tel.: +7-985-997-94-75
| | - Ivan A. Shadrin
- Chemistry Department, Moscow State University, Leninskie Gory, 1 Str. 3, 119899 Moscow, Russia;
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12
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Lima MLSO, Braga CB, Becher TB, Odriozola‐Gimeno M, Torrent‐Sucarrat M, Rivilla I, Cossío FP, Marsaioli AJ, Ornelas C. Fluorescent Imidazo[1,2‐
a
]pyrimidine Compounds as Biocompatible Organic Photosensitizers that Generate Singlet Oxygen: A Potential Tool for Phototheranostics. Chemistry 2021; 27:6213-6222. [DOI: 10.1002/chem.202004957] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Indexed: 01/12/2023]
Affiliation(s)
- Maria L. S. O. Lima
- Institute of Chemistry University of Campinas—Unicamp Campinas 13083-861 Sao Paulo Brazil
- Present address: Instituto Federal da Bahia IFBA—Campus Juazeiro 48918-900 Juazeiro, BA Brasil
| | - Carolyne B. Braga
- Institute of Chemistry University of Campinas—Unicamp Campinas 13083-861 Sao Paulo Brazil
| | - Tiago B. Becher
- Institute of Chemistry University of Campinas—Unicamp Campinas 13083-861 Sao Paulo Brazil
| | - Mikel Odriozola‐Gimeno
- Department of Organic Chemistry I Centro de Innovación en Quimica Avanzada (ORFEO-CINQA) Universidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU), and Donostia International Physics Center (DIPC) Po Manuel Lardizabal 3 20018 Donostia/San Sebastián Spain
| | - Miquel Torrent‐Sucarrat
- Department of Organic Chemistry I Centro de Innovación en Quimica Avanzada (ORFEO-CINQA) Universidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU), and Donostia International Physics Center (DIPC) Po Manuel Lardizabal 3 20018 Donostia/San Sebastián Spain
- Ikerbasque Basque Foundation for Science Ma Diaz de Haro 3 Bilbao 48013 Spain
| | - Iván Rivilla
- Department of Organic Chemistry I Centro de Innovación en Quimica Avanzada (ORFEO-CINQA) Universidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU), and Donostia International Physics Center (DIPC) Po Manuel Lardizabal 3 20018 Donostia/San Sebastián Spain
| | - Fernando P. Cossío
- Department of Organic Chemistry I Centro de Innovación en Quimica Avanzada (ORFEO-CINQA) Universidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU), and Donostia International Physics Center (DIPC) Po Manuel Lardizabal 3 20018 Donostia/San Sebastián Spain
| | - Anita J. Marsaioli
- Institute of Chemistry University of Campinas—Unicamp Campinas 13083-861 Sao Paulo Brazil
| | - Catia Ornelas
- Institute of Chemistry University of Campinas—Unicamp Campinas 13083-861 Sao Paulo Brazil
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13
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Chen X, Sun P, Mo B, Chen C, Peng J. Palladium-Catalyzed Synthesis of Fluorescent Benzo[4,5]imidazo[1,2-a]pyridines through Annulation Reaction of Benzimidazoles and Alkynyl Bromides with Internal Alkynes. J Org Chem 2021; 86:352-366. [PMID: 33251795 DOI: 10.1021/acs.joc.0c02126] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
An efficient synthesis of fused azapolycycles based on (benz)imidazole and pyridine scaffolds has been developed. In all cases, the first nucleophilic addition of (benz)imidazoles to alkynyl bromides in tert-pentyl alcohol can proceed in a stereoselective manner to provide (Z)-N-(1-bromo-1-alken-2-yl)benzimidazoles at 110 °C. Sequentially, these adducts containing alkenyl bromide can undergo Pd-catalyzed intermolecular C-H annulation in the presence of internal alkynes in dimethylacetamide, affording fluorescent (benz)imidazole-fused pyridines in good to high yields. These compounds generally exhibit blue or green fluorescences (454-503 nm for solution states and 472-506 nm for solid states), and the fluorescence quantum yields remained in 0.19-0.89 and 0.02-0.74 for solution and solid states, respectively.
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Affiliation(s)
- Xin Chen
- College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, 26 Hexing Road, Harbin 150040, P. R. China.,Material Science and Engineering College, Northeast Forestry University, 26 Hexing Road, Harbin 150040, P. R. China
| | - Peng Sun
- College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, 26 Hexing Road, Harbin 150040, P. R. China.,Material Science and Engineering College, Northeast Forestry University, 26 Hexing Road, Harbin 150040, P. R. China
| | - Baichuan Mo
- College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, 26 Hexing Road, Harbin 150040, P. R. China.,Material Science and Engineering College, Northeast Forestry University, 26 Hexing Road, Harbin 150040, P. R. China
| | - Chunxia Chen
- College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, 26 Hexing Road, Harbin 150040, P. R. China.,Material Science and Engineering College, Northeast Forestry University, 26 Hexing Road, Harbin 150040, P. R. China
| | - Jinsong Peng
- College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, 26 Hexing Road, Harbin 150040, P. R. China
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14
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Vuillermet F, Bourret J, Pelletier G. Synthesis of Imidazo[1,2-a]pyridines: Triflic Anhydride-Mediated Annulation of 2H-Azirines with 2-Chloropyridines. J Org Chem 2020; 86:388-402. [DOI: 10.1021/acs.joc.0c02148] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Frédéric Vuillermet
- Department of Chemical Sciences, Paraza Pharma Inc., 2525 avenue Marie-Curie, Saint-Laurent, Québec H4S 2E1, Canada
| | - Joanick Bourret
- Department of Chemical Sciences, Paraza Pharma Inc., 2525 avenue Marie-Curie, Saint-Laurent, Québec H4S 2E1, Canada
| | - Guillaume Pelletier
- Department of Chemical Sciences, Paraza Pharma Inc., 2525 avenue Marie-Curie, Saint-Laurent, Québec H4S 2E1, Canada
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15
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Li B, Ali AI, Ge H. Recent Advances in Using Transition-Metal-Catalyzed C–H Functionalization to Build Fluorescent Materials. Chem 2020. [DOI: 10.1016/j.chempr.2020.08.017] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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16
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Starikov AS, Kalashnikov VV, Tarakanov PA, Simakov AO, Simonov SV, Tkachev VV, Yarkov AV, Kazachenko VP, Chernyak AV, Zhurkin FE, Tomilova LG, Pushkarev VE. Synthesis of 1,2‐Dicyano‐3‐arylcycl[3.2.2]azines – First 1,2‐Dicarbonitriles Based on Cyclazine Heterocycle. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000958] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Andrei S. Starikov
- Institute of Physiologically Active Compounds Russian Academy of Sciences 1 Severny proezd 142432 Chernogolovka Moscow Region Russian Federation
| | - Valery V. Kalashnikov
- Institute of Physiologically Active Compounds Russian Academy of Sciences 1 Severny proezd 142432 Chernogolovka Moscow Region Russian Federation
| | - Pavel A. Tarakanov
- Institute of Physiologically Active Compounds Russian Academy of Sciences 1 Severny proezd 142432 Chernogolovka Moscow Region Russian Federation
| | - Anton O. Simakov
- Institute of Physiologically Active Compounds Russian Academy of Sciences 1 Severny proezd 142432 Chernogolovka Moscow Region Russian Federation
| | - Sergey V. Simonov
- Institute of Solid State Physics Russian Academy of Sciences 2 Academician Ossipyan street 142432 Chernogolovka Moscow Region Russian Federation
| | - Valery V. Tkachev
- Institute of Physiologically Active Compounds Russian Academy of Sciences 1 Severny proezd 142432 Chernogolovka Moscow Region Russian Federation
- Institute of Problems of Chemical Physics Russian Academy of Sciences 1 Academician Semenov avenue 142432 Chernogolovka Moscow Region Russian Federation
| | - Alexander V. Yarkov
- Institute of Physiologically Active Compounds Russian Academy of Sciences 1 Severny proezd 142432 Chernogolovka Moscow Region Russian Federation
| | - Vladimir P. Kazachenko
- Institute of Physiologically Active Compounds Russian Academy of Sciences 1 Severny proezd 142432 Chernogolovka Moscow Region Russian Federation
| | - Alexander V. Chernyak
- Institute of Problems of Chemical Physics Russian Academy of Sciences 1 Academician Semenov avenue 142432 Chernogolovka Moscow Region Russian Federation
| | - Fedor E. Zhurkin
- Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques UMR CNRS 8601 Université de Paris 45 rue des Saints‐Pères 75006 Paris France
| | - Larisa G. Tomilova
- Institute of Physiologically Active Compounds Russian Academy of Sciences 1 Severny proezd 142432 Chernogolovka Moscow Region Russian Federation
- Department of Chemistry M.V. Lomonosov Moscow State University 1 Leninskie Gory 119991 Moscow Russian Federation
| | - Victor E. Pushkarev
- Institute of Physiologically Active Compounds Russian Academy of Sciences 1 Severny proezd 142432 Chernogolovka Moscow Region Russian Federation
- Department of Chemistry M.V. Lomonosov Moscow State University 1 Leninskie Gory 119991 Moscow Russian Federation
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17
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Glutamine-walking: Creating reactive substrates for transglutaminase-mediated protein labeling. Methods Enzymol 2020. [PMID: 32943142 DOI: 10.1016/bs.mie.2020.04.066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/13/2023]
Abstract
Chemically modified proteins are increasingly being tested and approved as therapeutic products. Batch-to-batch homogeneity is crucial to ensure safety and quality of therapeutic products. Highly selective protein modification may be achieved using enzymatic routes. Microbial transglutaminase (mTG) is a robust, easy to use and well-established enzyme that is used at a very large scale in the food industry such that its efficacy and its safety for human consumption are well established. In the context of therapeutic protein modification, mTG should crosslink one or more glutamines on the target protein with an aminated moiety such as a solubilizer, a tracer or a cytotoxic moiety. mTG has the advantage of being unreactive toward the majority of surface-exposed glutamines on most proteins, reducing sample heterogeneity. The caveat is that there may be no reactive glutamine on the target protein, or else a reactive glutamine may be found in a location where its modification compromises function of the target protein. Here we describe the glutamine-walk (Gln-walk), a straightforward method to create a glutamine-substrate site that is reactive to mTG in a target protein. Iterative substitution of single amino acids to a glutamine is followed by facile identification of reactivity with mTG, where covalent labeling of the target with an aminated fluorophore allows visualization of the most reactive modified targets. The approach is empirical; knowledge of the target protein structure and functional regions facilitates application of the method.
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18
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Benaissa I, Pallova L, Morantin ME, Lafitte T, Huynh M, Barthes C, Vendier L, Lugan N, Bastin S, César V. N-Heterocyclic Carbenes as Key Intermediates in the Synthesis of Fused, Mesoionic, Tricyclic Heterocycles. Chemistry 2019; 25:13030-13036. [PMID: 31385630 DOI: 10.1002/chem.201903242] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Indexed: 01/16/2023]
Abstract
Coupling between 5-bromoimidazo[1,5-a]pyridinium salts and malonate or arylacetate esters leads to a facile and straightforward access to the new mesoionic, fused, tricyclic system of imidazo[2,1,5-cd]indolizinium-3-olate. Mechanistic studies show that the reaction pathway consists of nucleophilic aromatic substitution on the cationic, bicyclic heterocycle by an enolate-type moiety and in the nucleophilic attack of a transient free N-heterocyclic carbene (NHC) species on the ester group; the relative order of these two steps depends on the nature of the starting ester. This work highlights the valuable implementation of free NHC species as key intermediates in synthetic chemistry, beyond their classical use as stabilizing ligands or organocatalysts.
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Affiliation(s)
- Idir Benaissa
- LCC-CNRS, Université de Toulouse, CNRS, Toulouse, 31077, France
| | - Lenka Pallova
- LCC-CNRS, Université de Toulouse, CNRS, Toulouse, 31077, France
| | | | - Thomas Lafitte
- LCC-CNRS, Université de Toulouse, CNRS, Toulouse, 31077, France
| | - Mathieu Huynh
- LCC-CNRS, Université de Toulouse, CNRS, Toulouse, 31077, France
| | - Cécile Barthes
- LCC-CNRS, Université de Toulouse, CNRS, Toulouse, 31077, France
| | - Laure Vendier
- LCC-CNRS, Université de Toulouse, CNRS, Toulouse, 31077, France
| | - Noël Lugan
- LCC-CNRS, Université de Toulouse, CNRS, Toulouse, 31077, France
| | | | - Vincent César
- LCC-CNRS, Université de Toulouse, CNRS, Toulouse, 31077, France
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19
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Chintawar CC, Mane MV, Tathe AG, Biswas S, Patil NT. Gold-Catalyzed Cycloisomerization of Pyridine-Bridged 1,8-Diynes: An Expedient Access to Luminescent Cycl[3.2.2]azines. Org Lett 2019; 21:7109-7113. [DOI: 10.1021/acs.orglett.9b02677] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Chetan C. Chintawar
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhauri, Bhopal 462 066, India
| | - Manoj V. Mane
- Physical Chemistry Division, CSIR − National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411 008, India
- KAUST Catalysis Centre, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Akash G. Tathe
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhauri, Bhopal 462 066, India
| | - Suprakash Biswas
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhauri, Bhopal 462 066, India
| | - Nitin T. Patil
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhauri, Bhopal 462 066, India
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20
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Yang J, Zhu Y, Tse AKW, Zhou X, Chen Y, Tse YC, Wong KMC, Ho CY. Synthesis and study of Au(iii)-indolizine derivatives: turn-on luminescence by photo-induced controlled release. Chem Commun (Camb) 2019; 55:4471-4474. [PMID: 30839955 DOI: 10.1039/c8cc10177a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The photo- and structural properties of a series of Au(iii) indolizine complexes were determined. Controlled release of halogenated indolizine derivatives from the corresponding Au(iii) complexes was achieved by photoinduced C-X bond formation, which provided turn-on luminescence with an increase in emission intensity of up to 67 times.
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Affiliation(s)
- Jie Yang
- Shenzhen Grubbs Institute, Department of Chemistry, Southern University of Science and Technology (SUSTech), Shenzhen 518055, China.
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21
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Dohmen C, Ihmels H, Kreienmeier R, Patrick BO. Synthesis of a crystallochromic indolizine dye by a base- and catalyst-free photochemical route. Chem Commun (Camb) 2019; 55:11071-11074. [DOI: 10.1039/c9cc04730a] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Irradiation of 2-benzoyl-N-benzylpyridinium derivatives and dimethyl acetylene dicarboxylate resulted in the formation of inolizine derivatives, one which was found to be the first example of a crystallochromic indolizine.
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Affiliation(s)
- Christoph Dohmen
- Department Chemie-Biologie
- Organische Chemie II, Universität Siegen
- 57068 Siegen
- Germany
| | - Heiko Ihmels
- Department Chemie-Biologie
- Organische Chemie II, Universität Siegen
- 57068 Siegen
- Germany
| | - Rouven Kreienmeier
- Department Chemie-Biologie
- Organische Chemie II, Universität Siegen
- 57068 Siegen
- Germany
| | - Brian O. Patrick
- Department of Chemistry, Structural Chemistry Facility
- The University of British Columbia
- Vancouver
- Canada
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22
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Li X, Chen X, Wang H, Chen C, Sun P, Mo B, Peng J. Palladium-catalyzed tandem one-pot synthesis of π-expanded imidazoles through a sequential Heck and oxidative amination reaction. Org Biomol Chem 2019; 17:4014-4023. [DOI: 10.1039/c9ob00482c] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
An efficient palladium-catalyzed route for tandem one-pot synthesis of π-expanded imidazoles from 2-vinyl imidazoles and aryl halides is described.
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Affiliation(s)
- Xue Li
- Department of Chemistry and Chemical Engineering
- College of Science
- Northeast Forestry University
- Harbin
- P. R. China
| | - Xin Chen
- Department of Chemistry and Chemical Engineering
- College of Science
- Northeast Forestry University
- Harbin
- P. R. China
| | - Hui Wang
- Department of Chemistry and Chemical Engineering
- College of Science
- Northeast Forestry University
- Harbin
- P. R. China
| | - Chunxia Chen
- Department of Chemistry and Chemical Engineering
- College of Science
- Northeast Forestry University
- Harbin
- P. R. China
| | - Peng Sun
- Department of Chemistry and Chemical Engineering
- College of Science
- Northeast Forestry University
- Harbin
- P. R. China
| | - Baichuan Mo
- Department of Chemistry and Chemical Engineering
- College of Science
- Northeast Forestry University
- Harbin
- P. R. China
| | - Jinsong Peng
- Department of Chemistry and Chemical Engineering
- College of Science
- Northeast Forestry University
- Harbin
- P. R. China
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23
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Kahar NM, Nabar KU, Jadhav PP, Dawande SG. Rhodium(II)-Catalyzed Highly Stereoselective C3 Functionalization of Indolizines with N
-Sulfonyl-1,2,3-triazoles. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800631] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
| | - Kasturi Uday Nabar
- Department of Chemistry; Institute of Chemical Technology Mumbai; 400019 Maharashtra India
| | - Pankaj Pandit Jadhav
- Department of Chemistry; Institute of Chemical Technology Mumbai; 400019 Maharashtra India
| | - Sudam Ganpat Dawande
- Department of Chemistry; Institute of Chemical Technology Mumbai; 400019 Maharashtra India
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24
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Janardhanan JC, Mishra RK, Das G, Sini S, Jayamurthy P, Suresh CH, Praveen VK, Manoj N, Babu BP. Functionalizable 1H
-Indazoles by Palladium Catalyzed Aza-Nenitzescu Reaction: Pharmacophores to Donor-Acceptor Type Multi-Luminescent Fluorophores. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800413] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Jith C. Janardhanan
- Department of Applied Chemistry; Cochin University of Science and Technology (CUSAT); Cochin 682022 India
| | - Rakesh K. Mishra
- Chemical Science and Technology Division; CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST); Thiruvanathapuram 695019 India
- Department of Sciences and Humanities; National Institute of Technology, Uttarakhand (NITUK); Srinagar (Garhwal) 246174 India
| | - Gourab Das
- Chemical Science and Technology Division; CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST); Thiruvanathapuram 695019 India
- Academy of Scientific and Innovative Research (AcSIR); CSIR-NIIST Campus; Thiruvanathapuram 695019 India
| | - Suresh Sini
- Agroprocessing and Technology Division; CSIR-NIIST; Thiruvanathapuram 695019 India
| | - Purushothaman Jayamurthy
- Academy of Scientific and Innovative Research (AcSIR); CSIR-NIIST Campus; Thiruvanathapuram 695019 India
- Agroprocessing and Technology Division; CSIR-NIIST; Thiruvanathapuram 695019 India
| | - Cherumuttathu H. Suresh
- Chemical Science and Technology Division; CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST); Thiruvanathapuram 695019 India
- Academy of Scientific and Innovative Research (AcSIR); CSIR-NIIST Campus; Thiruvanathapuram 695019 India
| | - Vakayil K. Praveen
- Chemical Science and Technology Division; CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST); Thiruvanathapuram 695019 India
- Academy of Scientific and Innovative Research (AcSIR); CSIR-NIIST Campus; Thiruvanathapuram 695019 India
| | - Narayanapillai Manoj
- Department of Applied Chemistry; Cochin University of Science and Technology (CUSAT); Cochin 682022 India
| | - Beneesh P. Babu
- Department of Chemistry; National Institute of Technology, Karnataka (NITK); Surathkal 575025 India
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25
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Li B, Chen Z, Cao H, Zhao H. Transition-Metal-Free Regioselective Cross-Coupling: Controlled Synthesis of Mono- or Dithiolation Indolizines. Org Lett 2018; 20:3291-3295. [DOI: 10.1021/acs.orglett.8b01168] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Bin Li
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan 528458, P. R. China
| | - Zhiyu Chen
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan 528458, P. R. China
| | - Hua Cao
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan 528458, P. R. China
| | - Hong Zhao
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan 528458, P. R. China
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26
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Mohbiya DR, Sekar N. Tuning ‘Stokes Shift’ and ICT Character by Varying the Donor Group in Imidazo[1,5 a]pyridines: A Combined Optical, DFT, TD-DFT and NLO Approach. ChemistrySelect 2018. [DOI: 10.1002/slct.201702579] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Dhanraj R. Mohbiya
- Dyestuff Technology Department; Institute of Chemical Technology; Nathalal Parekh Marg, Matunga Mumbai 400019 India
| | - Nagaiyan Sekar
- Dyestuff Technology Department; Institute of Chemical Technology; Nathalal Parekh Marg, Matunga Mumbai 400019 India
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27
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Ziarani GM, Moradi R, Lashgari N, Kruger HG. Miscellaneous Dyes. METAL-FREE SYNTHETIC ORGANIC DYES 2018:245-259. [DOI: 10.1016/b978-0-12-815647-6.00019-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
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28
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Rachel NM, Quaglia D, Lévesque É, Charette AB, Pelletier JN. Engineered, highly reactive substrates of microbial transglutaminase enable protein labeling within various secondary structure elements. Protein Sci 2017; 26:2268-2279. [PMID: 28857311 DOI: 10.1002/pro.3286] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Revised: 08/24/2017] [Accepted: 08/28/2017] [Indexed: 12/15/2022]
Abstract
Microbial transglutaminase (MTG) is a practical tool to enzymatically form isopeptide bonds between peptide or protein substrates. This natural approach to crosslinking the side-chains of reactive glutamine and lysine residues is solidly rooted in food and textile processing. More recently, MTG's tolerance for various primary amines in lieu of lysine have revealed its potential for site-specific protein labeling with aminated compounds, including fluorophores. Importantly, MTG can label glutamines at accessible positions in the body of a target protein, setting it apart from most labeling enzymes that react exclusively at protein termini. To expand its applicability as a labeling tool, we engineered the B1 domain of Protein G (GB1) to probe the selectivity and enhance the reactivity of MTG toward its glutamine substrate. We built a GB1 library where each variant contained a single glutamine at positions covering all secondary structure elements. The most reactive and selective variants displayed a >100-fold increase in incorporation of a recently developed aminated benzo[a]imidazo[2,1,5-cd]indolizine-type fluorophore, relative to native GB1. None of the variants were destabilized. Our results demonstrate that MTG can react readily with glutamines in α-helical, β-sheet, and unstructured loop elements and does not favor one type of secondary structure. Introducing point mutations within MTG's active site further increased reactivity toward the most reactive substrate variant, I6Q-GB1, enhancing MTG's capacity to fluorescently label an engineered, highly reactive glutamine substrate. This work demonstrates that MTG-reactive glutamines can be readily introduced into a protein domain for fluorescent labeling.
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Affiliation(s)
- Natalie M Rachel
- Department of Chemistry, Université de Montréal, 2900 Boulevard Edouard-Montpetit, Montréal, Québec, H3T 1J4, Canada.,PROTEO, the Québec Network for Protein Function, Engineering and Applications, Québec, G1V 0A6, Canada.,CGCC, the Center in Green Chemistry and Catalysis, Montréal, Québec, H3A 0B8, Canada
| | - Daniela Quaglia
- Department of Chemistry, Université de Montréal, 2900 Boulevard Edouard-Montpetit, Montréal, Québec, H3T 1J4, Canada.,PROTEO, the Québec Network for Protein Function, Engineering and Applications, Québec, G1V 0A6, Canada.,CGCC, the Center in Green Chemistry and Catalysis, Montréal, Québec, H3A 0B8, Canada
| | - Éric Lévesque
- Department of Chemistry, Université de Montréal, 2900 Boulevard Edouard-Montpetit, Montréal, Québec, H3T 1J4, Canada.,CGCC, the Center in Green Chemistry and Catalysis, Montréal, Québec, H3A 0B8, Canada
| | - André B Charette
- Department of Chemistry, Université de Montréal, 2900 Boulevard Edouard-Montpetit, Montréal, Québec, H3T 1J4, Canada.,CGCC, the Center in Green Chemistry and Catalysis, Montréal, Québec, H3A 0B8, Canada
| | - Joelle N Pelletier
- Department of Chemistry, Université de Montréal, 2900 Boulevard Edouard-Montpetit, Montréal, Québec, H3T 1J4, Canada.,PROTEO, the Québec Network for Protein Function, Engineering and Applications, Québec, G1V 0A6, Canada.,CGCC, the Center in Green Chemistry and Catalysis, Montréal, Québec, H3A 0B8, Canada.,Department of Biochemistry, Université de Montréal, 2900 Boulevard Edouard-Montpetit, Montréal, Québec, H3T 1J4, Canada
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