1
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Murray JC, Rose CR, Curto JM. A General Synthesis of Dihydronaphthyridinones with Aryl-Substituted Quaternary Benzylic Centers. J Org Chem 2023. [PMID: 36791410 DOI: 10.1021/acs.joc.2c02956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Abstract
A variety of 7,8-dihydro-1,6-naphthyridin-5(6H)-ones and 3,4-dihydro-2,7-naphthyridin-1(2H)-ones with quaternary centers and aryl substitutions at the benzylic carbon were synthesized with a new 3-step, 2-pot method. The first step is an SNAr using widely available 2- and 4-chloronicotinate esters and tertiary benzylic nitriles. The last two steps are a one-pot selective nitrile reduction in the presence of various heterocycles followed by a lactam ring closure of the free amine on the ester.
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Affiliation(s)
- John C Murray
- Pfizer Worldwide Research, Development & Medicine, Groton, Connecticut 06340, United States
| | - Colin R Rose
- Pfizer Worldwide Research, Development & Medicine, Groton, Connecticut 06340, United States
| | - John M Curto
- Pfizer Worldwide Research, Development & Medicine, Groton, Connecticut 06340, United States
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2
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Gamonal Ruiz-Crespo A, Galán-Fernández L, Martínez-Martín P, Rodríguez-Ubis JC. An Orthogonal Synthetic Approach to Nonsymmetrical Bisazolyl 2,4,6-Trisubstituted Pyridines. Molecules 2022; 27:1746. [PMID: 35268847 PMCID: PMC8911976 DOI: 10.3390/molecules27051746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 03/02/2022] [Accepted: 03/05/2022] [Indexed: 11/16/2022] Open
Abstract
A three-step synthetic route giving access to nonsymmetrical bisazolyl 2,4,6-trisubstituted pyridines with different substituents on the pyrazole, indazole, and pyridine heterocycles is described. From the readily available 4-bromo-2,6-difluoropyridine, both fluorine atoms allow for easy selective stepwise substitution, and the bromine atom provides easy access to additional functionalities through both Suzuki and Sonogashira Pd(0) cross-coupling reactions. These synthons represent optimal structures as building blocks in complexation and metalloorganic structures for the tuning of their chelating and photophysical properties.
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Affiliation(s)
| | | | | | - Juan Carlos Rodríguez-Ubis
- Departamento de Química Orgánica, Facultad de Ciencias, Universidad Autónoma de Madrid, 28049 Madrid, Spain; (A.G.R.-C.); (L.G.-F.); (P.M.-M.)
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3
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Zhao J, Chen M, Wu M, Shi L, Li H. Synthesis of Pentasubstituted meta‐Fluoropyridines via [4+2] Cycloaddition and Aromaticzation between Trifluoromethyl Ketimines and Maleimides. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200042] [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)
- Jianbo Zhao
- East China University of Science and Technology Pharmacy CHINA
| | - Mengzi Chen
- East China University of Science and Technology Pharmacy CHINA
| | - Min Wu
- East China University of Science and Technology Pharmacy CHINA
| | - Lei Shi
- Huabao Flavours & Fragrances Co., Ltd Research CHINA
| | - Hao Li
- East China University of Science and Technology School of Pharmacy 130 Meilong Road 200237 Shanghai CHINA
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4
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Katoh T. Facile Preparation of 3-Substituted-2,6-difluoropyridines and Application to the Synthesis of 2,3,6-Trisubstituted Pyridines for PKCθ Inhibitors. J SYN ORG CHEM JPN 2020. [DOI: 10.5059/yukigoseikyokaishi.78.121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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5
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Kershaw Cook LJ, Ramsay ML. Ditopic bis-heteroazolylpyridines for construction of fluorescent silver(I) bridged metalloligands. INORG CHEM COMMUN 2019. [DOI: 10.1016/j.inoche.2019.04.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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6
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Scherbinina SI, Fedorov OV, Levin VV, Kokorekin VA, Struchkova MI, Dilman AD. Synthesis of 3-Fluoropyridines via Photoredox-Mediated Coupling of α,α-Difluoro-β-iodoketones with Silyl Enol Ethers. J Org Chem 2017; 82:12967-12974. [DOI: 10.1021/acs.joc.7b02467] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Sofya I. Scherbinina
- N. D. Zelinsky Institute of Organic Chemistry, Leninsky prosp. 47, 119991 Moscow, Russian Federation
- D. Mendeleev University of Chemical Technology of Russia, Higher Chemical College, Miusskaya sq.
9, 125047 Moscow, Russian Federation
| | - Oleg V. Fedorov
- N. D. Zelinsky Institute of Organic Chemistry, Leninsky prosp. 47, 119991 Moscow, Russian Federation
| | - Vitalij V. Levin
- N. D. Zelinsky Institute of Organic Chemistry, Leninsky prosp. 47, 119991 Moscow, Russian Federation
| | - Vladimir A. Kokorekin
- N. D. Zelinsky Institute of Organic Chemistry, Leninsky prosp. 47, 119991 Moscow, Russian Federation
- I. M. Sechenov First Moscow State Medical University, Trubetskaya st. 8-2, 119991 Moscow, Russian Federation
| | - Marina I. Struchkova
- N. D. Zelinsky Institute of Organic Chemistry, Leninsky prosp. 47, 119991 Moscow, Russian Federation
| | - Alexander D. Dilman
- N. D. Zelinsky Institute of Organic Chemistry, Leninsky prosp. 47, 119991 Moscow, Russian Federation
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7
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Gerlach DL, Siek S, Burks DB, Tesh JM, Thompson CR, Vasquez RM, White NJ, Zeller M, Grotjahn DB, Papish ET. Ruthenium (II) and Iridium (III) Complexes of N-Heterocyclic Carbene and Pyridinol Derived Bidentate Chelates: Synthesis, Characterization, and Reactivity. Inorganica Chim Acta 2017; 466:442-450. [PMID: 29217867 PMCID: PMC5714516 DOI: 10.1016/j.ica.2017.06.063] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
We report the synthesis and characterization of new ruthenium(II) and iridium(III) complexes of a new bidentate chelate, NHCR'-pyOR (OR = OMe, OtBu, OH and R' = Me, Et). Synthesis and characterization studies were done on the following compounds: four ligand precursors (1-4); two silver complexes of these NHCR'-pyOR ligands (5-7); six ruthenium complexes of the type [η6-(p-cymene)Ru(NHCR'-pyOR)Cl]X with R' = Me, Et and R = Me, tBu, H and X = OTf-, PF6- and PO2F2- (8-13); and two iridium complexes, [Cp*Ir(NHCMe-pyOtBu)Cl]PF6 (14) and [Cp*Ir(NHCMe-pyOH)Cl]PO2F2 (15). The complexes are air stable and were isolated in moderate yield. However, for the PF6- salts, hydrolysis of the PF6- counter anion to PO2F2- during t-butyl ether deprotection was observed. Most of the complexes were characterized by 1H and 13C-NMR, MS, IR, and X-ray diffraction. The ruthenium complexes [η6-(p-cymene)Ru(NHCMe-pyOR)Cl]OTf (R = Me (8) and tBu (9)) were tested for their ability to accelerate CO2 hydrogenation and formic acid dehydrogenation. However, our studies show that the complexes transform during the reaction and these complexes are best thought of as pre-catalysts.
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Affiliation(s)
- Deidra L. Gerlach
- Department of Chemistry, The University of Alabama, Box 870336, Tuscaloosa, Alabama 35487-0336, USA
| | - Sopheavy Siek
- Department of Chemistry, The University of Alabama, Box 870336, Tuscaloosa, Alabama 35487-0336, USA
| | - Dalton B. Burks
- Department of Chemistry, The University of Alabama, Box 870336, Tuscaloosa, Alabama 35487-0336, USA
| | - Jamie M. Tesh
- Department of Chemistry, The University of Alabama, Box 870336, Tuscaloosa, Alabama 35487-0336, USA
| | - Courtney R. Thompson
- Department of Chemistry, The University of Alabama, Box 870336, Tuscaloosa, Alabama 35487-0336, USA
| | - Robert M. Vasquez
- Department of Chemistry and Biochemistry, 5500 Campanile Drive, San Diego State University, San Diego, California 92182-1030, USA
| | - Nicholas J. White
- Department of Chemistry, The University of Alabama, Box 870336, Tuscaloosa, Alabama 35487-0336, USA
| | - Matthias Zeller
- Department of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, IN 47907, USA
| | - Douglas B. Grotjahn
- Department of Chemistry and Biochemistry, 5500 Campanile Drive, San Diego State University, San Diego, California 92182-1030, USA
| | - Elizabeth T. Papish
- Department of Chemistry, The University of Alabama, Box 870336, Tuscaloosa, Alabama 35487-0336, USA
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8
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Katoh T, Tomata Y, Setoh M, Sasaki S, Takai T, Yoshitomi Y, Yukawa T, Nakagawa H, Fukumoto S, Tsukamoto T, Nakada Y. Practical application of 3-substituted-2,6-difluoropyridines in drug discovery: Facile synthesis of novel protein kinase C theta inhibitors. Bioorg Med Chem Lett 2017; 27:2497-2501. [PMID: 28400232 DOI: 10.1016/j.bmcl.2017.03.099] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Revised: 03/30/2017] [Accepted: 03/31/2017] [Indexed: 12/11/2022]
Abstract
We previously reported a facile preparation method of 3-substituted-2,6-difluoropyridines, which were easily converted to 2,3,6-trisubstituted pyridines by nucleophilic aromatic substitution with good regioselectivity and yield. In this study, we demonstrate the synthetic utility of 3-substituted-2,6-difluoropyridines in drug discovery via their application in the synthesis of various 2,3,6-trisubstituted pyridines, including macrocyclic derivatives, as novel protein kinase C theta inhibitors in a moderate to good yield. This synthetic approach is useful for the preparation of 2,3,6-trisubstituted pyridines, which are a popular scaffold for drug candidates and biologically attractive compounds.
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Affiliation(s)
- Taisuke Katoh
- Pharmaceutical Research Division, Takeda Pharmaceutical Company, Ltd, 26-1, Muraokahigashi 2-chome, Fujisawa, Kanagawa 251-8555, Japan.
| | - Yoshihide Tomata
- Pharmaceutical Research Division, Takeda Pharmaceutical Company, Ltd, 26-1, Muraokahigashi 2-chome, Fujisawa, Kanagawa 251-8555, Japan
| | - Masaki Setoh
- Pharmaceutical Research Division, Takeda Pharmaceutical Company, Ltd, 26-1, Muraokahigashi 2-chome, Fujisawa, Kanagawa 251-8555, Japan
| | - Satoshi Sasaki
- Pharmaceutical Research Division, Takeda Pharmaceutical Company, Ltd, 26-1, Muraokahigashi 2-chome, Fujisawa, Kanagawa 251-8555, Japan
| | - Takafumi Takai
- Pharmaceutical Research Division, Takeda Pharmaceutical Company, Ltd, 26-1, Muraokahigashi 2-chome, Fujisawa, Kanagawa 251-8555, Japan
| | - Yayoi Yoshitomi
- Pharmaceutical Research Division, Takeda Pharmaceutical Company, Ltd, 26-1, Muraokahigashi 2-chome, Fujisawa, Kanagawa 251-8555, Japan
| | - Tomoya Yukawa
- Pharmaceutical Research Division, Takeda Pharmaceutical Company, Ltd, 26-1, Muraokahigashi 2-chome, Fujisawa, Kanagawa 251-8555, Japan
| | - Hideyuki Nakagawa
- Pharmaceutical Research Division, Takeda Pharmaceutical Company, Ltd, 26-1, Muraokahigashi 2-chome, Fujisawa, Kanagawa 251-8555, Japan
| | - Shoji Fukumoto
- Pharmaceutical Research Division, Takeda Pharmaceutical Company, Ltd, 26-1, Muraokahigashi 2-chome, Fujisawa, Kanagawa 251-8555, Japan
| | - Tetsuya Tsukamoto
- Pharmaceutical Research Division, Takeda Pharmaceutical Company, Ltd, 26-1, Muraokahigashi 2-chome, Fujisawa, Kanagawa 251-8555, Japan
| | - Yoshihisa Nakada
- Pharmaceutical Research Division, Takeda Pharmaceutical Company, Ltd, 26-1, Muraokahigashi 2-chome, Fujisawa, Kanagawa 251-8555, Japan
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9
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Siek S, Burks DB, Gerlach DL, Liang G, Tesh JM, Thompson CR, Qu F, Shankwitz JE, Vasquez RM, Chambers N, Szulczewski GJ, Grotjahn DB, Webster CE, Papish ET. Iridium and Ruthenium Complexes of N-Heterocyclic Carbene- and Pyridinol-Derived Chelates as Catalysts for Aqueous Carbon Dioxide Hydrogenation and Formic Acid Dehydrogenation: The Role of the Alkali Metal. Organometallics 2017; 36:1091-1106. [PMID: 29540958 PMCID: PMC5840859 DOI: 10.1021/acs.organomet.6b00806] [Citation(s) in RCA: 80] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2016] [Indexed: 02/05/2023]
Abstract
Hydrogenation reactions can be used to store energy in chemical bonds, and if these reactions are reversible, that energy can be released on demand. Some of the most effective transition metal catalysts for CO2 hydrogenation have featured pyridin-2-ol-based ligands (e.g., 6,6'-dihydroxybipyridine (6,6'-dhbp)) for both their proton-responsive features and for metal-ligand bifunctional catalysis. We aimed to compare bidentate pyridin-2-ol based ligands with a new scaffold featuring an N-heterocyclic carbene (NHC) bound to pyridin-2-ol. Toward this aim, we have synthesized a series of [Cp*Ir(NHC-pyOR)Cl]OTf complexes where R = t Bu (1), H (2), or Me (3). For comparison, we tested analogous bipy-derived iridium complexes as catalysts, specifically [Cp*Ir(6,6'-dxbp)Cl]OTf, where x = hydroxy (4Ir ) or methoxy (5Ir ); 4Ir was reported previously, but 5Ir is new. The analogous ruthenium complexes were also tested using [(η6-cymene)Ru(6,6'-dxbp)Cl]OTf, where x = hydroxy (4Ru ) or methoxy (5Ru ); 4Ru and 5Ru were both reported previously. All new complexes were fully characterized by spectroscopic and analytical methods and by single-crystal X-ray diffraction for 1, 2, 3, 5Ir , and for two [Ag(NHC-pyOR)2]OTf complexes 6 (R = t Bu) and 7 (R = Me). The aqueous catalytic studies of both CO2 hydrogenation and formic acid dehydrogenation were performed with catalysts 1-5. In general, NHC-pyOR complexes 1-3 were modest precatalysts for both reactions. NHC complexes 1-3 all underwent transformations under basic CO2 hydrogenation conditions, and for 3, we trapped a product of its transformation, 3SP , which we characterized crystallographically. For CO2 hydrogenation with base and dxbp-based catalysts, we observed that x = hydroxy (4Ir ) is 5-8 times more active than x = methoxy (5Ir ). Notably, ruthenium complex 4Ru showed 95% of the activity of 4Ir . For formic acid dehydrogenation, the trends were quite different with catalytic activity showing 4Ir ≫ 4Ru and 4Ir ≈ 5Ir . Secondary coordination sphere effects are important under basic hydrogenation conditions where the OH groups of 6,6'-dhbp are deprotonated and alkali metals can bind and help to activate CO2. Computational DFT studies have confirmed these trends and have been used to study the mechanisms of both CO2 hydrogenation and formic acid dehydrogenation.
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Affiliation(s)
- Sopheavy Siek
- Department
of Chemistry, The University of Alabama, Box 870336, Tuscaloosa, Alabama 35487-0336, United States
| | - Dalton B. Burks
- Department
of Chemistry, The University of Alabama, Box 870336, Tuscaloosa, Alabama 35487-0336, United States
| | - Deidra L. Gerlach
- Department
of Chemistry, The University of Alabama, Box 870336, Tuscaloosa, Alabama 35487-0336, United States
| | - Guangchao Liang
- Department
of Chemistry, Mississippi State University, Mississippi State, Mississippi 39762, United States
| | - Jamie M. Tesh
- Department
of Chemistry, The University of Alabama, Box 870336, Tuscaloosa, Alabama 35487-0336, United States
| | - Courtney R. Thompson
- Department
of Chemistry, The University of Alabama, Box 870336, Tuscaloosa, Alabama 35487-0336, United States
| | - Fengrui Qu
- Department
of Chemistry, The University of Alabama, Box 870336, Tuscaloosa, Alabama 35487-0336, United States
| | - Jennifer E. Shankwitz
- Department
of Chemistry, The University of Alabama, Box 870336, Tuscaloosa, Alabama 35487-0336, United States
| | - Robert M. Vasquez
- Department
of Chemistry and Biochemistry, San Diego
State University, 5500
Campanile Drive, San Diego, California 92182-1030, United States
| | - Nicole Chambers
- Department
of Chemistry, The University of Alabama, Box 870336, Tuscaloosa, Alabama 35487-0336, United States
| | - Gregory J. Szulczewski
- Department
of Chemistry, The University of Alabama, Box 870336, Tuscaloosa, Alabama 35487-0336, United States
| | - Douglas B. Grotjahn
- Department
of Chemistry and Biochemistry, San Diego
State University, 5500
Campanile Drive, San Diego, California 92182-1030, United States
| | - Charles Edwin Webster
- Department
of Chemistry, Mississippi State University, Mississippi State, Mississippi 39762, United States
| | - Elizabeth T. Papish
- Department
of Chemistry, The University of Alabama, Box 870336, Tuscaloosa, Alabama 35487-0336, United States
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10
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Strohecker DJ, Lynch VM, Holliday BJ, Jones RA. Synthesis and electronic investigation of mono- and di-substituted 4-nitro- and 4-amino-pyrazol-1-yl bis(pyrazol-1-yl)pyridine-type ligands and luminescent Eu(iii) derivatives. Dalton Trans 2017; 46:7733-7742. [DOI: 10.1039/c7dt01153a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis of nitro- and amino-bis(pyrazol-1-yl)pyridines was achieved, allowing for tuning of frontier orbital energies and Eu(iii) complex spectroscopic investigations.
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Affiliation(s)
- D. J. Strohecker
- Department of Chemistry
- The University of Texas at Austin
- Austin
- USA
| | - V. M. Lynch
- Department of Chemistry
- The University of Texas at Austin
- Austin
- USA
| | | | - R. A. Jones
- Department of Chemistry
- The University of Texas at Austin
- Austin
- USA
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11
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Facile preparation of 3-substituted-2,6-difluoropyridines: application to the synthesis of 2,3,6-trisubstituted pyridines. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.09.057] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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12
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Quinio P, Roman DS, León T, William S, Karaghiosoff K, Knochel P. Transition-Metal-Free Cross-Coupling of Aryl and N-Heteroaryl Cyanides with Benzylic Zinc Reagents. Org Lett 2015; 17:4396-9. [PMID: 26313453 DOI: 10.1021/acs.orglett.5b02380] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Pauline Quinio
- Department
Chemie, Ludwig-Maximilians-Universität, Butenandtstrasse. 5-13, 81377 München, Germany
| | - Daniela Sustac Roman
- Department
Chemie, Ludwig-Maximilians-Universität, Butenandtstrasse. 5-13, 81377 München, Germany
| | - Thierry León
- Department
Chemie, Ludwig-Maximilians-Universität, Butenandtstrasse. 5-13, 81377 München, Germany
| | - Sharankini William
- Department
Chemie, Ludwig-Maximilians-Universität, Butenandtstrasse. 5-13, 81377 München, Germany
| | - Konstantin Karaghiosoff
- Department
Chemie, Ludwig-Maximilians-Universität, Butenandtstrasse. 5-13, 81377 München, Germany
| | - Paul Knochel
- Department
Chemie, Ludwig-Maximilians-Universität, Butenandtstrasse. 5-13, 81377 München, Germany
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13
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Chauhan M, Rana A, Alex JM, Negi A, Singh S, Kumar R. Design, microwave-mediated synthesis and biological evaluation of novel 4-aryl(alkyl)amino-3-nitroquinoline and 2,4-diaryl(dialkyl)amino-3-nitroquinolines as anticancer agents. Bioorg Chem 2015; 58:1-10. [DOI: 10.1016/j.bioorg.2014.11.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2014] [Revised: 11/03/2014] [Accepted: 11/06/2014] [Indexed: 11/25/2022]
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14
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Fier PS, Hartwig JF. Synthesis and late-stage functionalization of complex molecules through C-H fluorination and nucleophilic aromatic substitution. J Am Chem Soc 2014; 136:10139-47. [PMID: 24918484 PMCID: PMC4227713 DOI: 10.1021/ja5049303] [Citation(s) in RCA: 99] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
We report the late-stage functionalization of multisubstituted pyridines and diazines at the position α to nitrogen. By this process, a series of functional groups and substituents bound to the ring through nitrogen, oxygen, sulfur, or carbon are installed. This functionalization is accomplished by a combination of fluorination and nucleophilic aromatic substitution of the installed fluoride. A diverse array of functionalities can be installed because of the mild reaction conditions revealed for nucleophilic aromatic substitutions (S(N)Ar) of the 2-fluoroheteroarenes. An evaluation of the rates for substitution versus the rates for competitive processes provides a framework for planning this functionalization sequence. This process is illustrated by the modification of a series of medicinally important compounds, as well as the increase in efficiency of synthesis of several existing pharmaceuticals.
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Affiliation(s)
- Patrick S Fier
- Department of Chemistry, University of California , Berkeley, California 94720, United States
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15
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Eng H, Sharma R, McDonald TS, Edmonds DJ, Fortin JP, Li X, Stevens BD, Griffith DA, Limberakis C, Nolte WM, Price DA, Jackson M, Kalgutkar AS. Demonstration of the Innate Electrophilicity of 4-(3-(Benzyloxy)phenyl)-2-(ethylsulfinyl)-6-(trifluoromethyl)pyrimidine (BETP), a Small-Molecule Positive Allosteric Modulator of the Glucagon-Like Peptide-1 Receptor. Drug Metab Dispos 2013; 41:1470-9. [DOI: 10.1124/dmd.113.052183] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
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16
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Conejero S, López-Serrano J, Paneque M, Petronilho A, Poveda ML, Vattier F, Álvarez E, Carmona E. Tautomerisation of 2-Substituted Pyridines to N-Heterocyclic Carbene Ligands Induced by the 16 e− Unsaturated [TpMe2IrIII(C6H5)2] Moiety. Chemistry 2012; 18:4644-64. [DOI: 10.1002/chem.201103507] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2012] [Indexed: 12/31/2022]
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17
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Starck M, Kadjane P, Bois E, Darbouret B, Incamps A, Ziessel R, Charbonnière LJ. Towards Libraries of Luminescent Lanthanide Complexes and Labels from Generic Synthons. Chemistry 2011; 17:9164-79. [DOI: 10.1002/chem.201100390] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2011] [Indexed: 01/23/2023]
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18
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Aubin Y, Fischmeister C, Thomas CM, Renaud JL. Direct amination of aryl halides with ammonia. Chem Soc Rev 2010; 39:4130-45. [DOI: 10.1039/c003692g] [Citation(s) in RCA: 173] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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19
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Kadjane P, Starck M, Camerel F, Hill D, Hildebrandt N, Ziessel R, Charbonnière LJ. Divergent Approach to a Large Variety of Versatile Luminescent Lanthanide Complexes. Inorg Chem 2009; 48:4601-3. [DOI: 10.1021/ic9001169] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Pascal Kadjane
- Laboratoire de Chimie Organique et Spectroscopies Avancées, UMR 7515 associée au CNRS, ECPM, 25 rue Becquerel, 67087 Strasbourg Cedex 02, France
| | - Matthieu Starck
- Laboratoire de Chimie Organique et Spectroscopies Avancées, UMR 7515 associée au CNRS, ECPM, 25 rue Becquerel, 67087 Strasbourg Cedex 02, France
| | - Franck Camerel
- Laboratoire de Chimie Organique et Spectroscopies Avancées, UMR 7515 associée au CNRS, ECPM, 25 rue Becquerel, 67087 Strasbourg Cedex 02, France
| | - Diana Hill
- Institut für Chemie, Physikalische Chemie, Universität Potsdam, Karl-Liebknecht-Strasse 24−25, 14476 Potsdam-Golm, Germany
| | - Niko Hildebrandt
- Fraunhofer Institute for Applied Polymer Research, NanoPolyPhotonics, Wissenschaftspark Golm, Geiselbergstrasse 69, 14476 Postdam-Golm, Germany,
| | - Raymond Ziessel
- Laboratoire de Chimie Organique et Spectroscopies Avancées, UMR 7515 associée au CNRS, ECPM, 25 rue Becquerel, 67087 Strasbourg Cedex 02, France
| | - Loïc J. Charbonnière
- Laboratoire de Chimie Organique et Spectroscopies Avancées, UMR 7515 associée au CNRS, ECPM, 25 rue Becquerel, 67087 Strasbourg Cedex 02, France
- Laboratoire d’Ingénierie Moléculaire Analytique, UMR 7178 CNRS, IPHC, ECPM, 25 rue Becquerel, 67087 Strasbourg Cedex 02, France
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20
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Charrier N, Quiclet-Sire B, Zard SZ. Allylic Alcohols as Radical Allylating Agents. An Overall Olefination of Aldehydes and Ketones. J Am Chem Soc 2008; 130:8898-9. [DOI: 10.1021/ja802899m] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Nicolas Charrier
- Laboratoire de Synthèse Organique, CNRS UMR 7652, Ecole Polytechnique, 91128 Palaiseau, France
| | - Béatrice Quiclet-Sire
- Laboratoire de Synthèse Organique, CNRS UMR 7652, Ecole Polytechnique, 91128 Palaiseau, France
| | - Samir Z. Zard
- Laboratoire de Synthèse Organique, CNRS UMR 7652, Ecole Polytechnique, 91128 Palaiseau, France
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21
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Priego EM, Sánchez L, Angeles Herranz M, Martín N, Viruela R, Ortí E. Synthesis and radical coupling of pyridine-bridged π-extended tetrathiafulvalene (TTF)-type donors and push–pull analogues. Org Biomol Chem 2007; 5:1201-9. [PMID: 17406718 DOI: 10.1039/b701806a] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new family of pi-extended TTF analogues (3a-c) and D-pi-A chromophores (5a-c), in which the electroactive units (1,3-dithiole rings and 2,2-dicyanovinyl groups) are connected through a pyridine bridge with a meta substitution pattern, is reported. The redox behavior of these compounds has been investigated by cyclic voltammetry and theoretical calculations performed at the B3P86/6-31G** level. Unlike many pi-extended TTF derivatives, the 1,3-dithiole rings in compounds 3a-c do not behave independently and two oxidation processes are observed with an anodic separation ranging from 50 to 150 mV. Calculations show that electrons are equally extracted from both dithiole rings. A biradical structure is predicted for the dication state due to the near-degeneracy of the HOMO and HOMO - 1 orbitals. The presence of both donor (D) and acceptor (A) fragments in conjugates results in irreversible oxidation and reduction processes associated with the 1,3-dithiole ring and with the 2,2-dicyanovinyl moiety, respectively. An electrochemical-chemical-electrochemical (ECE) process takes place for all the compounds reported. The chemical process implies the dimerization of the radical cation for compounds 5 and the oligomerization of the biradical dication for compounds 3. The ECE process therefore generates new neutral dimeric (5) or oligomeric (3) species that incorporate the TTF vinylogue core.
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Affiliation(s)
- Eva M Priego
- Departamento de Química Orgánica, Facultad de Química, Universidad Complutense, 28040, Madrid, Spain
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22
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Schlosser M, Lefebvre O, Ondi L. Metal-Bearing and Trifluoromethyl-Substituted Pyrimidines: Generation and Functionalization. European J Org Chem 2006. [DOI: 10.1002/ejoc.200500848] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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