1
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Brunelli F, Russo C, Giustiniano M, Tron GC. Each Interruption is an Opportunity: Novel Synthetic Strategies Explored Through Interrupted Click Reactions. Chemistry 2024; 30:e202303844. [PMID: 38408267 DOI: 10.1002/chem.202303844] [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: 11/19/2023] [Indexed: 02/28/2024]
Abstract
The particular and unique mechanism of the copper-catalyzed reaction between azides and alkynes (CuAAC) has not only allowed for the efficient synthesis of 1,2,3-trisubstituted 1,4-triazoles in excellent yields and under mild conditions, becoming the quintessential click reaction, but it has also enabled the straightforward formation of a metallocycle intermediate, the copper triazolyl. This, under suitable reaction conditions able to suppress its protonolysis, can be used either for the creation of new bicyclic triazolyl structures or for the generation of novel three or four-component reactions. The aim of this review is to rationalize and unify all these transformations, which are collectively referred to as "interrupted click reactions".
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Affiliation(s)
- Francesca Brunelli
- Dipartimento di Scienze del Farmaco, Università del Piemonte Orientale, Largo Donegani 2, 28100, Novara, Italy
| | - Camilla Russo
- Dipartimento di Farmacia, Università degli Studi, Federico II, Via D. Montesano 49, 80131, Napoli, Italy
| | - Mariateresa Giustiniano
- Dipartimento di Farmacia, Università degli Studi, Federico II, Via D. Montesano 49, 80131, Napoli, Italy
| | - Gian Cesare Tron
- Dipartimento di Scienze del Farmaco, Università del Piemonte Orientale, Largo Donegani 2, 28100, Novara, Italy
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2
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Szafrański PW, Siwek A, Smaga-Maślanka I, Pomierny-Chamioło L, Ilnicki P, Żuchowski G, Nevalainen T, Filip M, Zajdel P, Cegła MT. Synthesis, relative configuration and CB1 receptor affinity studies for a set of 1,2,3-triazole derivatives. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2023.135223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
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3
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Wang C, Li Q, Wang S, Zhu G, Zhu A, Li L. Copper-catalyzed in situ oxidative-coupling for one-pot synthesis of 5-aryl-1,4-disubstituted 1,2,3-triazoles under mild conditions. RSC Adv 2021; 11:38108-38114. [PMID: 35498067 PMCID: PMC9043963 DOI: 10.1039/d1ra06827j] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2021] [Accepted: 11/07/2021] [Indexed: 11/21/2022] Open
Abstract
A new reaction system with CuCl as catalyst, TEA as base and O2/chloramine-T as oxidant was developed for one-pot in situ oxidative-coupling to synthesize 5-aryl-1,4-disubstituted 1,2,3-triazoles in this paper. A variety of 5-arylated-1,2,3-triazole compounds could be efficiently prepared directly from the readily accessible organic azides, terminal alkynes and arylboronic acids. Advantages of the method include use of low-cost catalyst, clean oxidant, less-toxic additive, and low reaction temperature. Importantly, due to avoiding harsh strong basic reagents and high temperatures, the presented method can offer mild conditions for multi-component synthesis of 5-aryl-1,2,3-triazoles from the designed structurally complicated alkynyl or azide donors bearing natural product motifs and sensitive functional groups.
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Affiliation(s)
- Chao Wang
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Henan Normal University Xinxiang Henan 453007 China
| | - Qianqian Li
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Henan Normal University Xinxiang Henan 453007 China
| | - Shilei Wang
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Henan Normal University Xinxiang Henan 453007 China
| | - Gongming Zhu
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Henan Normal University Xinxiang Henan 453007 China
| | - Anlian Zhu
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Henan Normal University Xinxiang Henan 453007 China
| | - Lingjun Li
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Henan Normal University Xinxiang Henan 453007 China
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4
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Emami M, Bikas R, Noshiranzadeh N, Kozakiewicz A, Lis T. Cu(II)-Hydrazide Coordination Compound Supported on Silica Gel as an Efficient and Recyclable Heterogeneous Catalyst for Green Click Synthesis of β-Hydroxy-1,2,3-triazoles in Water. ACS OMEGA 2020; 5:13344-13357. [PMID: 32548521 PMCID: PMC7288712 DOI: 10.1021/acsomega.0c01491] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Accepted: 05/12/2020] [Indexed: 05/02/2023]
Abstract
A hydrazone ligand, (E)-6-(2-((2-hydroxynaphthalen-1-yl)methylene)hydrazinyl)nicotinohydrazide (H2L), was synthesized and characterized by spectroscopic methods. The reaction of H2L with CuCl2·2H2O in methanol gave Cu(II) coordination compound, [Cu(HL')(Cl)]·CH3OH (1), which was characterized by elemental analysis and spectroscopic methods (Fourier transform infrared (FT-IR) and UV-vis). The structure of 1 was also determined by single-crystal X-ray analysis. Structural studies confirmed the formation of esteric group during the synthesis of 1. Compound 1 was immobilized on 3-aminopropyltriethoxysilane (APTS)-functionalized silica gel through the amidification reaction and the obtained heterogeneous coordination compound was utilized as a catalyst for the three-component azide-epoxide-alkyne cycloaddition reaction in water as a green solvent. The structural properties of the heterogeneous catalyst were characterized by a combination of FT-IR, UV-vis, thermogravimetric analysis (TGA), scanning electron microscopy (SEM) and energy-dispersive spectrometry (EDS) analyses. The effect of the amount of catalyst and temperature on the cycloaddition reaction was studied, and the obtained 1,2,3-triazoles were characterized by spectroscopic studies and single-crystal X-ray analysis. The catalytic investigations revealed that this catalytic system has high activity in the synthesis of β-hydroxy-1,2,3-triazoles. It was also found that the aromatic and aliphatic substituents on the alkyne and epoxide together with the reaction temperature have considerable effects on the activity and regioselectivity of this catalytic system.
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Affiliation(s)
- Marzieh Emami
- Department
of Chemistry, Faculty of Science, University
of Zanjan, 45371-38791 Zanjan, Iran
| | - Rahman Bikas
- Department
of Chemistry, Faculty of Science, Imam Khomeini
International University, 34148-96818 Qazvin, Iran
- ,
| | - Nader Noshiranzadeh
- Department
of Chemistry, Faculty of Science, University
of Zanjan, 45371-38791 Zanjan, Iran
| | - Anna Kozakiewicz
- Faculty
of Chemistry, Nicolaus Copernicus University
in Toruń, 87-100 Toruń, Poland
| | - Tadeusz Lis
- Faculty
of Chemistry, University of Wroclaw, Joliot-Curie 14, Wroclaw 50-383, Poland
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5
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A decade of advances in the reaction of nitrogen sources and alkynes for the synthesis of triazoles. Coord Chem Rev 2020. [DOI: 10.1016/j.ccr.2020.213217] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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6
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Reddy PR, Cui L, Ryu JS. One-pot three component synthesis of 5-allyl-1,2,3-triazoles using copper(i) acetylides. RSC Adv 2018; 8:2759-2767. [PMID: 35541454 PMCID: PMC9077393 DOI: 10.1039/c7ra12889d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Accepted: 01/03/2018] [Indexed: 01/17/2023] Open
Abstract
One-pot three-component reactions using copper(i) acetylide, azide, allyl iodide, and NaOH have been developed. The reactions proceed smoothly at room temperature to afford 5-allyl-1,2,3-triazoles, which can be further transformed into a variety of 1,2,3-triazole-fused bi-/tricyclic scaffolds. This method offers the most efficient, convenient, and practical route towards useful polycyclic scaffolds in moderate to excellent yields.
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Affiliation(s)
- Parigi Raghavendar Reddy
- College of Pharmacy & Graduate School of Pharmaceutical Sciences, Ewha Womans University 52 Ewhayeodae-gil, Seodaemun-Gu Seoul 03760 Republic of Korea
| | - Lianji Cui
- College of Pharmacy & Graduate School of Pharmaceutical Sciences, Ewha Womans University 52 Ewhayeodae-gil, Seodaemun-Gu Seoul 03760 Republic of Korea
| | - Jae-Sang Ryu
- College of Pharmacy & Graduate School of Pharmaceutical Sciences, Ewha Womans University 52 Ewhayeodae-gil, Seodaemun-Gu Seoul 03760 Republic of Korea
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7
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Chrovian CC, Soyode-Johnson A, Peterson AA, Gelin CF, Deng X, Dvorak CA, Carruthers NI, Lord B, Fraser I, Aluisio L, Coe KJ, Scott B, Koudriakova T, Schoetens F, Sepassi K, Gallacher DJ, Bhattacharya A, Letavic MA. A Dipolar Cycloaddition Reaction To Access 6-Methyl-4,5,6,7-tetrahydro-1H-[1,2,3]triazolo[4,5-c]pyridines Enables the Discovery Synthesis and Preclinical Profiling of a P2X7 Antagonist Clinical Candidate. J Med Chem 2017; 61:207-223. [DOI: 10.1021/acs.jmedchem.7b01279] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Christa C. Chrovian
- Janssen Research & Development, LLC, 3210 Merryfield Row, San Diego, California 92121, United States
| | - Akinola Soyode-Johnson
- Janssen Research & Development, LLC, 3210 Merryfield Row, San Diego, California 92121, United States
| | - Alexander A. Peterson
- Janssen Research & Development, LLC, 3210 Merryfield Row, San Diego, California 92121, United States
| | - Christine F. Gelin
- Janssen Research & Development, LLC, 3210 Merryfield Row, San Diego, California 92121, United States
| | - Xiaohu Deng
- Janssen Research & Development, LLC, 3210 Merryfield Row, San Diego, California 92121, United States
| | - Curt A. Dvorak
- Janssen Research & Development, LLC, 3210 Merryfield Row, San Diego, California 92121, United States
| | - Nicholas I. Carruthers
- Janssen Research & Development, LLC, 3210 Merryfield Row, San Diego, California 92121, United States
| | - Brian Lord
- Janssen Research & Development, LLC, 3210 Merryfield Row, San Diego, California 92121, United States
| | - Ian Fraser
- Janssen Research & Development, LLC, 3210 Merryfield Row, San Diego, California 92121, United States
| | - Leah Aluisio
- Janssen Research & Development, LLC, 3210 Merryfield Row, San Diego, California 92121, United States
| | - Kevin J. Coe
- Janssen Research & Development, LLC, 3210 Merryfield Row, San Diego, California 92121, United States
| | - Brian Scott
- Janssen Research & Development, LLC, 3210 Merryfield Row, San Diego, California 92121, United States
| | - Tatiana Koudriakova
- Janssen Research & Development, LLC, 3210 Merryfield Row, San Diego, California 92121, United States
| | - Freddy Schoetens
- Janssen Research & Development, LLC, 3210 Merryfield Row, San Diego, California 92121, United States
| | - Kia Sepassi
- Janssen Research & Development, LLC, 3210 Merryfield Row, San Diego, California 92121, United States
| | - David J. Gallacher
- Janssen Research & Development, Janssen Pharmaceutica NV, Turnhoutseweg 30, 2340 Beerse, Belgium
| | - Anindya Bhattacharya
- Janssen Research & Development, LLC, 3210 Merryfield Row, San Diego, California 92121, United States
| | - Michael A. Letavic
- Janssen Research & Development, LLC, 3210 Merryfield Row, San Diego, California 92121, United States
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8
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Liao Y, Lu Q, Chen G, Yu Y, Li C, Huang X. Rhodium-Catalyzed Azide–Alkyne Cycloaddition of Internal Ynamides: Regioselective Assembly of 5-Amino-Triazoles under Mild Conditions. ACS Catal 2017. [DOI: 10.1021/acscatal.7b02558] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Yun Liao
- Key
Laboratory of Coal to Ethylene Glycol and Its Related Technology,
Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
| | - Qianqian Lu
- State
Key Laboratory of Structural Chemistry, Fujian Institute of Research
on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
| | - Gui Chen
- Key
Laboratory of Coal to Ethylene Glycol and Its Related Technology,
Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
| | - Yinghua Yu
- Key
Laboratory of Coal to Ethylene Glycol and Its Related Technology,
Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
| | - Chunsen Li
- State
Key Laboratory of Structural Chemistry, Fujian Institute of Research
on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
| | - Xueliang Huang
- Key
Laboratory of Coal to Ethylene Glycol and Its Related Technology,
Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
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9
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Kausar N, Das AR. CuI–Zn(OAc) 2 catalyzed C(sp 2 )–H activation for the synthesis of pyridocoumarins through an uncommon Cu I –Cu III switching mechanism: A fast, solvent-free, combo-catalytic, ball milling approach. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.05.074] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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10
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Letavic MA, Savall BM, Allison BD, Aluisio L, Andres JI, De Angelis M, Ao H, Beauchamp DA, Bonaventure P, Bryant S, Carruthers NI, Ceusters M, Coe KJ, Dvorak CA, Fraser IC, Gelin CF, Koudriakova T, Liang J, Lord B, Lovenberg TW, Otieno MA, Schoetens F, Swanson DM, Wang Q, Wickenden AD, Bhattacharya A. 4-Methyl-6,7-dihydro-4H-triazolo[4,5-c]pyridine-Based P2X7 Receptor Antagonists: Optimization of Pharmacokinetic Properties Leading to the Identification of a Clinical Candidate. J Med Chem 2017; 60:4559-4572. [PMID: 28493698 DOI: 10.1021/acs.jmedchem.7b00408] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The synthesis and preclinical characterization of novel 4-(R)-methyl-6,7-dihydro-4H-triazolo[4,5-c]pyridines that are potent and selective brain penetrant P2X7 antagonists are described. Optimization efforts based on previously disclosed unsubstituted 6,7-dihydro-4H-triazolo[4,5-c]pyridines, methyl substituted 5,6,7,8-tetrahydro[1,2,4]triazolo[4,3-a]pyrazines, and several other series lead to the identification of a series of 4-(R)-methyl-6,7-dihydro-4H-triazolo[4,5-c]pyridines that are selective P2X7 antagonists with potency at the rodent and human P2X7 ion channels. These novel P2X7 antagonists have suitable physicochemical properties, and several analogs have an excellent pharmacokinetic profile, good partitioning into the CNS and show robust in vivo target engagement after oral dosing. Improvements in metabolic stability led to the identification of JNJ-54175446 (14) as a candidate for clinical development. The drug discovery efforts and strategies that resulted in the identification of the clinical candidate are described herein.
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Affiliation(s)
- Michael A Letavic
- Janssen Research & Development, LLC , 3210 Merryfield Row, San Diego, California 92121, United States
| | - Brad M Savall
- Janssen Research & Development, LLC , 3210 Merryfield Row, San Diego, California 92121, United States
| | - Brett D Allison
- Janssen Research & Development, LLC , 3210 Merryfield Row, San Diego, California 92121, United States
| | - Leah Aluisio
- Janssen Research & Development, LLC , 3210 Merryfield Row, San Diego, California 92121, United States
| | - Jose Ignacio Andres
- Janssen Research & Development, a Division of Janssen-Cilag , Jarama 75, 45007 Toledo, Spain
| | - Meri De Angelis
- Janssen Research & Development, a Division of Janssen-Cilag , Jarama 75, 45007 Toledo, Spain
| | - Hong Ao
- Janssen Research & Development, LLC , 3210 Merryfield Row, San Diego, California 92121, United States
| | - Derek A Beauchamp
- Janssen Research & Development, LLC , 1400 McKean Road, Spring House, Pennsylvania 19477, United States
| | - Pascal Bonaventure
- Janssen Research & Development, LLC , 3210 Merryfield Row, San Diego, California 92121, United States
| | - Stewart Bryant
- Janssen Research & Development, LLC , 1400 McKean Road, Spring House, Pennsylvania 19477, United States
| | - Nicholas I Carruthers
- Janssen Research & Development, LLC , 3210 Merryfield Row, San Diego, California 92121, United States
| | - Marc Ceusters
- Janssen Research & Development, Janssen Pharmaceutica NV , Turnhoutseweg 30, 2340 Beerse, Belgium
| | - Kevin J Coe
- Janssen Research & Development, LLC , 3210 Merryfield Row, San Diego, California 92121, United States
| | - Curt A Dvorak
- Janssen Research & Development, LLC , 3210 Merryfield Row, San Diego, California 92121, United States
| | - Ian C Fraser
- Janssen Research & Development, LLC , 3210 Merryfield Row, San Diego, California 92121, United States
| | - Christine F Gelin
- Janssen Research & Development, LLC , 3210 Merryfield Row, San Diego, California 92121, United States
| | - Tatiana Koudriakova
- Janssen Research & Development, LLC , 3210 Merryfield Row, San Diego, California 92121, United States
| | - Jimmy Liang
- Janssen Research & Development, LLC , 3210 Merryfield Row, San Diego, California 92121, United States
| | - Brian Lord
- Janssen Research & Development, LLC , 3210 Merryfield Row, San Diego, California 92121, United States
| | - Timothy W Lovenberg
- Janssen Research & Development, LLC , 3210 Merryfield Row, San Diego, California 92121, United States
| | - Monicah A Otieno
- Janssen Research & Development, LLC , 1400 McKean Road, Spring House, Pennsylvania 19477, United States
| | - Freddy Schoetens
- Janssen Research & Development, LLC , 3210 Merryfield Row, San Diego, California 92121, United States
| | - Devin M Swanson
- Janssen Research & Development, LLC , 3210 Merryfield Row, San Diego, California 92121, United States
| | - Qi Wang
- Janssen Research & Development, LLC , 3210 Merryfield Row, San Diego, California 92121, United States
| | - Alan D Wickenden
- Janssen Research & Development, LLC , 3210 Merryfield Row, San Diego, California 92121, United States
| | - Anindya Bhattacharya
- Janssen Research & Development, LLC , 3210 Merryfield Row, San Diego, California 92121, United States
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11
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Mondal R, Khamarui S, Maiti DK. CuBr-ZnI 2 Combo-Catalysis for Mild Cu I-Cu III Switching and sp 2 C-H Activated Rapid Cyclization to Quinolines and Their Sugar-Based Chiral Analogues: A UV-Vis and XPS Study. ACS OMEGA 2016; 1:251-263. [PMID: 31457128 PMCID: PMC6640751 DOI: 10.1021/acsomega.6b00185] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/11/2016] [Accepted: 08/15/2016] [Indexed: 06/10/2023]
Abstract
An unprecedented CuBr-ZnI2 combo-catalyzed mild Cu1-CuIII switching activation of sp2 C-H of highly electron-rich arenes is reported. Anilines, aldehydes, and terminal alkynes were rapidly coupled together at ambient temperature to construct a ubiquitous quinoline framework through cyclization of the C≡C bond. This smart solvent-free strategy was exploited for the direct synthesis of valuable 4-substituted, 2,4-disubstituted, and thermally labile sugar-based chiral quinolines in good yields. In contrast to the frequently used imine-alkyne cyclization reaction, this uncommonly mild CuI-CuIII combo-catalysis for a rapid three-component cyclization is expected to proceed through the formation of a flexible propargyl amine intermediate, which provides a CuI-procatalyst for rapid sp2 C-H activation with cyclization involving transient CuIII species. The in situ generation of transient CuIII species was confirmed through online ultraviolet-visible spectroscopy (UV-vis), electrospray ionization mass spectrometry (ESI-MS), and X-ray photoelectron spectroscopy (XPS) analyses.
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12
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Chrovian CC, Soyode-Johnson A, Ao H, Bacani GM, Carruthers NI, Lord B, Nguyen L, Rech JC, Wang Q, Bhattacharya A, Letavic MA. Novel Phenyl-Substituted 5,6-Dihydro-[1,2,4]triazolo[4,3-a]pyrazine P2X7 Antagonists with Robust Target Engagement in Rat Brain. ACS Chem Neurosci 2016; 7:490-7. [PMID: 26752113 DOI: 10.1021/acschemneuro.5b00303] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
Novel 5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazine P2X7 antagonists were optimized to allow for good blood-brain barrier permeability and high P2X7 target engagement in the brain of rats. Compound 25 (huP2X7 IC50 = 9 nM; rat P2X7 IC50 = 42 nM) achieved 80% receptor occupancy for 6 h when dosed orally at 10 mg/kg in rats as measured by ex vivo radioligand binding autoradiography. Structure-activity relationships within this series are described, as well as in vitro ADME results. In vivo pharmacokinetic data for key compounds is also included.
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Affiliation(s)
- Christa C. Chrovian
- Janssen Research & Development, LLC, 3210 Merryfield Row, San Diego, California 92121-1126, United States
| | - Akinola Soyode-Johnson
- Janssen Research & Development, LLC, 3210 Merryfield Row, San Diego, California 92121-1126, United States
| | - Hong Ao
- Janssen Research & Development, LLC, 3210 Merryfield Row, San Diego, California 92121-1126, United States
| | - Genesis M. Bacani
- Janssen Research & Development, LLC, 3210 Merryfield Row, San Diego, California 92121-1126, United States
| | - Nicholas I. Carruthers
- Janssen Research & Development, LLC, 3210 Merryfield Row, San Diego, California 92121-1126, United States
| | - Brian Lord
- Janssen Research & Development, LLC, 3210 Merryfield Row, San Diego, California 92121-1126, United States
| | - Leslie Nguyen
- Janssen Research & Development, LLC, 3210 Merryfield Row, San Diego, California 92121-1126, United States
| | - Jason C. Rech
- Janssen Research & Development, LLC, 3210 Merryfield Row, San Diego, California 92121-1126, United States
| | - Qi Wang
- Janssen Research & Development, LLC, 3210 Merryfield Row, San Diego, California 92121-1126, United States
| | - Anindya Bhattacharya
- Janssen Research & Development, LLC, 3210 Merryfield Row, San Diego, California 92121-1126, United States
| | - Michael A. Letavic
- Janssen Research & Development, LLC, 3210 Merryfield Row, San Diego, California 92121-1126, United States
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13
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Liu Y, Zhang K, Huang Y, Pan S, Liu XQ, Yang Y, Jiang Y, Xu XH. Synthesis of 3-fluoroalkenyl-3-trifluoromethyl-2-oxindoles by the reaction of indoline-2,3-diones with difluoromethylene phosphabetaine. Chem Commun (Camb) 2016; 52:5969-72. [PMID: 27056087 DOI: 10.1039/c6cc00666c] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
An unprecedent reaction of indoline-2,3-diones and (triphenylphosphonio)difluoroacetate (PDFA) afforded novel 3-fluoroalkenyl-3-trifluoromethyl-2-oxindoles in moderate to excellent yields. These products could be transformed into other trifluoromethylated oxindole derivatives.
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Affiliation(s)
- Yingle Liu
- School of Chemistry and Pharmaceutical Engineering, Sichuan University of Science & Engineering, 180 Xueyuan Street, Huixing Lu, Zigong, Sichuan 643000, China.
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