1
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Zhang Y, Yi ZJ, Yang AM, Guo JM, Li X, Wei BG. AgSbF 6-catalyzed C3 aza-Friedel-Crafts alkylation of N, O-acetals with indoles for the synthesis of N-α indole substituted pyrrolidine and piperidine derivatives. Org Biomol Chem 2023; 21:1303-1315. [PMID: 36648089 DOI: 10.1039/d2ob02213c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
An efficient approach to access chiral N-α indole substituted pyrrolidine and piperidine skeletons has been developed through a AgSbF6-catalyzed N-α aza-Friedel-Crafts alkylation of N,O-acetals 6a, 6b, 9, and 11a-11d with indoles. As a result, a series of 2,3-trans N-α indole substituted pyrrolidines 8a-8x and piperidines 10a-10j were prepared in moderate to excellent yields and with excellent diastereoselectivities (dr up to 99 : 1). Moreover, several 2,5-cis-N-α indole substituted pyrrolidine derivatives 12a-12k were synthesized according to this strategy with moderate to good yields and diastereoselectivities (dr up to 99 : 1).
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Affiliation(s)
- Yu Zhang
- School of Life Science and Engineering, Lanzhou University of Technology, Lanzhou, 730050, China. .,Department of Natural Medicine, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, China.
| | - Zi-Juan Yi
- Department of Natural Medicine, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, China.
| | - Ai-Mei Yang
- School of Life Science and Engineering, Lanzhou University of Technology, Lanzhou, 730050, China.
| | - Jia-Ming Guo
- Department of Natural Medicine, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, China.
| | - Xin Li
- Department of Natural Medicine, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, China.
| | - Bang-Guo Wei
- Department of Natural Medicine, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, China.
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2
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Balo R, Fernández AG, Chopdat A, Ayadi SE, Kato A, Estévez RJ, Fleet GWJ, Estévez JC. Stable D-xylose ditriflate in divergent syntheses of dihydroxy prolines, pyrrolidines, tetrahydrofuran-2-carboxylic acids, and cyclic β-amino acids. Org Biomol Chem 2022; 20:9447-9459. [PMID: 36408757 DOI: 10.1039/d2ob01255c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Double nucleophilic displacement of D-xylo-ditriflate by amines, water and alkyl cyanoacetates, respectively, gave a series of bicyclic divergent intermediates for the synthesis of a wide range of highly functionalized targets, including hydroxylated prolines, pyrrolidines, furanoic acids, and cyclopentanes.
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Affiliation(s)
- Rosalino Balo
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares and Departamento de Química Orgánica, Campus Vida, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain.
| | - Alberto G Fernández
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares and Departamento de Química Orgánica, Campus Vida, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain.
| | - Adam Chopdat
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares and Departamento de Química Orgánica, Campus Vida, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain.
| | - Soufian El Ayadi
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares and Departamento de Química Orgánica, Campus Vida, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain.
| | - Atsushi Kato
- Department of Hospital Pharmacy, University of Toyama, Toyama 930-0194, Japan
| | - Ramón J Estévez
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares and Departamento de Química Orgánica, Campus Vida, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain. .,Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Oxford, OX1 3TA, UK
| | - George W J Fleet
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Oxford, OX1 3TA, UK
| | - Juan C Estévez
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares and Departamento de Química Orgánica, Campus Vida, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain.
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3
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Shen J, Tian F, Yang W, Deng W. Synergistic Copper and Chiral Lewis Base Catalysis for the Asymmetric Synthesis of Pyrrolo[1,2‐
a
]indoles. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202100476] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Jia‐Huan Shen
- Shanghai Key Laboratory of New Drug Design and School of Pharmacy East China University of Science and Technology, 130 Meilong Road Shanghai 200237 China
| | - Fei Tian
- Shanghai Key Laboratory of New Drug Design and School of Pharmacy East China University of Science and Technology, 130 Meilong Road Shanghai 200237 China
| | - Wu‐Lin Yang
- Shanghai Key Laboratory of New Drug Design and School of Pharmacy East China University of Science and Technology, 130 Meilong Road Shanghai 200237 China
| | - Wei‐Ping Deng
- Shanghai Key Laboratory of New Drug Design and School of Pharmacy East China University of Science and Technology, 130 Meilong Road Shanghai 200237 China
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4
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Dhote PS, Patel P, Vanka K, Ramana CV. Total synthesis of the pseudoindoxyl class of natural products. Org Biomol Chem 2021; 19:7970-7994. [PMID: 34486008 DOI: 10.1039/d1ob01285a] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The pseudoindoxyl sub-structural motif, amongst the large set of the indole class of alkaloids, represents a unique subset of the oxygenated indole class of the alkaloid family. A majority of this class of natural products contains complex bridged/polycyclic scaffolds with interesting biological profiles. They are thus attractive synthetic targets. Starting from 1963, twenty-eight natural products having the pseudoindoxyl scaffold have been isolated, among which the synthesis of 13 natural products has been accomplished. In this review, we highlight the completed as well as the formal total synthesis of the natural products with a spiro-pseudoindoxyl ring, with a focus on their development. The challenges and the future perspective based on the recent developments in the field will also be discussed. We strongly believe that this review will not only update but also attract the attention of researchers in dealing with the synthesis of pseudoindoxyl compounds.
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Affiliation(s)
- Pawan S Dhote
- Organic Chemistry Division, CSIR-National Chemical Laboratory Dr Homi Bhabha Road, Pune-411008, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
| | - Pitambar Patel
- CSIR-North East Institute of Science and Technology, Assam-785006, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
| | - Kumar Vanka
- Physical Chemistry Division, CSIR-National Chemical Laboratory Dr Homi Bhabha Road, Pune-411008, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
| | - Chepuri V Ramana
- Organic Chemistry Division, CSIR-National Chemical Laboratory Dr Homi Bhabha Road, Pune-411008, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
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5
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Heravi MM, Abedian‐Dehaghani N, Zadsirjan V, Rangraz Y. Catalytic Function of Cu (I) and Cu (II) in Total Synthesis of Alkaloids. ChemistrySelect 2021. [DOI: 10.1002/slct.202101130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Majid M. Heravi
- Department of Chemistry School of Physics and Chemistry Alzahra University, PO.Box 1993891176, Vanak Tehran Iran
| | - Neda Abedian‐Dehaghani
- Department of Chemistry School of Physics and Chemistry Alzahra University, PO.Box 1993891176, Vanak Tehran Iran
| | - Vahideh Zadsirjan
- Department of Chemistry School of Physics and Chemistry Alzahra University, PO.Box 1993891176, Vanak Tehran Iran
| | - Yalda Rangraz
- Department of Chemistry School of Physics and Chemistry Alzahra University, PO.Box 1993891176, Vanak Tehran Iran
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6
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Sun X, Dong X, Yang Y, Fu J, Wang Y, Li Z, Liu Y, Liu H. Palladium-catalyzed cascade 5-exo-trig radical cyclization/aromatic C-H alkylation with unactivated alkyl iodides. Org Biomol Chem 2021; 19:2676-2680. [PMID: 33710245 DOI: 10.1039/d1ob00346a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
A novel and convenient palladium-catalyzed cascade 5-exo-trig radical cyclization/aromatic C-H alkylation with unactivated alkyl iodides has been described. This strategy provides an efficient access to a variety of 3a-methyl-1,2,3,3a,4,8b-hexahydroindeno[1,2-b]pyrrole derivatives, which facilitate access to a series of medically important heterocyclic bioactive molecules. This protocol involves mild catalytic reaction conditions and shows high functional group tolerance with high stereoselectivity. Mechanistic investigations reveal that an alkyl radical pathway is involved in this reaction.
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Affiliation(s)
- Xi Sun
- School of Chemical Engineering, Shandong University of Technology, 266 West Xincun Road, Zibo, 255049, P. R. China.
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7
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Mu Y, Zhang T, Cheng Y, Fu W, Wei Z, Chen W, Liu G. Efficient synthesis of tetrahydrofurans with chiral tertiary allylic alcohols catalyzed by Ni/P-chiral ligand DI-BIDIME. Catal Sci Technol 2021. [DOI: 10.1039/d0cy02470h] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Efficient nickel-catalyzed stereoselective asymmetric intramolecular reductive cyclization of O-alkynones with P-chiral bisphosphorus ligand DI-BIDIME is reported.
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Affiliation(s)
- Yu Mu
- Inner Mongolia Key Laboratory of Fine Organic Synthesis
- College of Chemistry and Chemical Engineering
- Inner Mongolia University
- Hohhot 010021
- China
| | - Tao Zhang
- Inner Mongolia Key Laboratory of Fine Organic Synthesis
- College of Chemistry and Chemical Engineering
- Inner Mongolia University
- Hohhot 010021
- China
| | - Yaping Cheng
- Inner Mongolia Key Laboratory of Fine Organic Synthesis
- College of Chemistry and Chemical Engineering
- Inner Mongolia University
- Hohhot 010021
- China
| | - Wenzhen Fu
- State Key Laboratory of Bio-organic and Natural Products Chemistry
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- China
| | - Zuting Wei
- Inner Mongolia Key Laboratory of Fine Organic Synthesis
- College of Chemistry and Chemical Engineering
- Inner Mongolia University
- Hohhot 010021
- China
| | - Wanjun Chen
- Inner Mongolia Key Laboratory of Fine Organic Synthesis
- College of Chemistry and Chemical Engineering
- Inner Mongolia University
- Hohhot 010021
- China
| | - Guodu Liu
- Inner Mongolia Key Laboratory of Fine Organic Synthesis
- College of Chemistry and Chemical Engineering
- Inner Mongolia University
- Hohhot 010021
- China
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8
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Li P, Sheng R, Zhou Z, Hu G, Zhang X. Synthesis of N
-Fused Seven-Membered Indoline-3-ones via
a Palladium-Catalyzed One-Pot Insertion Reaction from 2-Alkynyl Arylazides and Cyclic β
-Diketones. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000243] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Ping Li
- Jiangsu Key Lab of Biomass-Based Green Fuels and Chemicals; College of Chemical Engineering; Nanjing Forestry University; 210037 Nanjing China
| | - Rong Sheng
- Jiangsu Key Lab of Biomass-Based Green Fuels and Chemicals; College of Chemical Engineering; Nanjing Forestry University; 210037 Nanjing China
| | - Zhiqiang Zhou
- Jiangsu Key Lab of Biomass-Based Green Fuels and Chemicals; College of Chemical Engineering; Nanjing Forestry University; 210037 Nanjing China
| | - Guiwen Hu
- Jiangsu Key Lab of Biomass-Based Green Fuels and Chemicals; College of Chemical Engineering; Nanjing Forestry University; 210037 Nanjing China
| | - Xiaoxiang Zhang
- Jiangsu Key Lab of Biomass-Based Green Fuels and Chemicals; College of Chemical Engineering; Nanjing Forestry University; 210037 Nanjing China
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9
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Kahar N, Jadhav P, Reddy RVR, Dawande S. A rhodium(ii) catalysed domino synthesis of azepino fused diindoles from isatin tethered N-sulfonyl-1,2,3-triazoles and indoles. Chem Commun (Camb) 2020; 56:1207-1210. [PMID: 31895362 DOI: 10.1039/c9cc08377d] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
An efficient and convenient protocol for the synthesis of a novel class of azepino fused diindoles from isatin tethered N-sulfonyl-1,2,3-triazoles and indoles has been disclosed. The reaction proceeds via denitrogenative aza-vinyl rhodium carbene formation to give a carbonyl ylide, which with indole results in 1,3-dipolar cycloaddition followed by sequential semipinacol rearrangement/ring expansion/oxidation to produce azepino fused diindoles. The reaction shows a broad substrate scope giving up to 81% yield. Furthermore, reversible catalytic hydrogenation and photophysical studies were carried out to demonstrate the application of these molecules.
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Affiliation(s)
- Nilesh Kahar
- Department of Chemistry, Institute of Chemical Technology, Mumbai, Maharashtra 400019, India.
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10
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Gaied LB, Fincias N, Garrec J, Kaïm LE. 5- endo-dig
Cyclization of O-Propargyl Mandelic Acid Amides towards 2,5-Dihydrofurans. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901397] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Lilia Ben Gaied
- Laboratoire de physico-chimie des microstructures et microsystèmes; Institut Préparatoire aux Etudes Scientifiques et Techniques, La Marsa; B.P. 51 2070 La Marsa Tunisie
| | - Nicolas Fincias
- Laboratoire de Synthèse Organique (LSO); Ecole Polytechnique; CNRS; ENSTA Paris-UMR 7652; Institut Polytechnique de Paris; 828 Bd des Maréchaux 91128 Palaiseau France
| | - Julian Garrec
- Laboratoire de Synthèse Organique (LSO); Ecole Polytechnique; CNRS; ENSTA Paris-UMR 7652; Institut Polytechnique de Paris; 828 Bd des Maréchaux 91128 Palaiseau France
| | - Laurent El Kaïm
- Laboratoire de Synthèse Organique (LSO); Ecole Polytechnique; CNRS; ENSTA Paris-UMR 7652; Institut Polytechnique de Paris; 828 Bd des Maréchaux 91128 Palaiseau France
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11
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Zhang P, Han J, Zhang J. Pd/PC‐Phos‐Catalyzed Enantioselective Intermolecular Denitrogenative Cyclization of Benzotriazoles with Allenes and N‐Allenamides. Angew Chem Int Ed Engl 2019; 58:11444-11448. [DOI: 10.1002/anie.201904805] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Indexed: 11/10/2022]
Affiliation(s)
- Pei‐Chao Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical ProcessesSchool of Chemistry and Molecular EngineeringEast China Normal University Shanghai 200062 P. R. China
| | - Jie Han
- Shanghai Key Laboratory of Green Chemistry and Chemical ProcessesSchool of Chemistry and Molecular EngineeringEast China Normal University Shanghai 200062 P. R. China
| | - Junliang Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical ProcessesSchool of Chemistry and Molecular EngineeringEast China Normal University Shanghai 200062 P. R. China
- Department of ChemistryFudan University 2005 Songhu Road Shanghai 200438 P. R. China
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12
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Zhang P, Han J, Zhang J. Pd/PC‐Phos‐Catalyzed Enantioselective Intermolecular Denitrogenative Cyclization of Benzotriazoles with Allenes and N‐Allenamides. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201904805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Pei‐Chao Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical ProcessesSchool of Chemistry and Molecular EngineeringEast China Normal University Shanghai 200062 P. R. China
| | - Jie Han
- Shanghai Key Laboratory of Green Chemistry and Chemical ProcessesSchool of Chemistry and Molecular EngineeringEast China Normal University Shanghai 200062 P. R. China
| | - Junliang Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical ProcessesSchool of Chemistry and Molecular EngineeringEast China Normal University Shanghai 200062 P. R. China
- Department of ChemistryFudan University 2005 Songhu Road Shanghai 200438 P. R. China
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13
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Wong CR, Hummel G, Cai Y, Schaus SE, Panek JS. [4 + 2]-Cycloaddition and 1,4-Addition of ortho-Quinone Methides by a Chiral Crotyl Silane. Org Lett 2019; 21:32-35. [PMID: 30557029 DOI: 10.1021/acs.orglett.8b03395] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Anhydrous FeCl3 in the presence of 2,6-lutidine promotes the substrate-controlled enantioselective [4 + 2]-cycloaddition and crotylation reaction between an enantioenriched ( S, E)-crotyl silane and in situ generated ortho-quinone methides ( oQMs). The reaction produces both the chiral chroman and crotylation products in a ratio reflective of the electronic nature of the parent oQM with overall combined yields up to 96%. A ring-opening and elimination sequence was subsequently developed to provide direct access to the crotylation products, containing two contiguous tertiary carbon stereocenters, in good yields and enantioselectivities.
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Affiliation(s)
- Christopher R Wong
- Department of Chemistry, Metcalf Center for Science and Engineering , Boston University , 590 Commonwealth Avenue , Boston , Massachusetts 02215 , United States
| | - Gerald Hummel
- Department of Chemistry, Metcalf Center for Science and Engineering , Boston University , 590 Commonwealth Avenue , Boston , Massachusetts 02215 , United States
| | - Yongqi Cai
- Department of Chemistry, Metcalf Center for Science and Engineering , Boston University , 590 Commonwealth Avenue , Boston , Massachusetts 02215 , United States
| | - Scott E Schaus
- Department of Chemistry, Metcalf Center for Science and Engineering , Boston University , 590 Commonwealth Avenue , Boston , Massachusetts 02215 , United States
| | - James S Panek
- Department of Chemistry, Metcalf Center for Science and Engineering , Boston University , 590 Commonwealth Avenue , Boston , Massachusetts 02215 , United States
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14
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Jin S, Guo J, Fang D, Huang Y, Wang Q, Bu Z. A Brønsted Acid‐Catalyzed Michael Addition/Cyclization Sequence for the Diastereoselective Assembly of Chroman‐Bridged Polycyclic Isoindolinones. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201801227] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Shaojing Jin
- Institute of Functional Organic Molecular Engineering, College of Chemistry and Chemical EngineeringHenan University Kaifeng 475004 People's Republic of China
| | - Jia Guo
- Institute of Functional Organic Molecular Engineering, College of Chemistry and Chemical EngineeringHenan University Kaifeng 475004 People's Republic of China
| | - Dongmei Fang
- Chengdu Institute of BiologyChinese Academy of Sciences Chengdu 610041 People's Republic of China
| | - Yongwei Huang
- Laboratory for Nanomedical Photonics, School of Basic Medicinal ScienceHenan University Kaifeng 475004 People's Republic of China
| | - Qilin Wang
- Institute of Functional Organic Molecular Engineering, College of Chemistry and Chemical EngineeringHenan University Kaifeng 475004 People's Republic of China
| | - Zhanwei Bu
- Institute of Functional Organic Molecular Engineering, College of Chemistry and Chemical EngineeringHenan University Kaifeng 475004 People's Republic of China
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15
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Atienza BJP, Jensen LD, Noton SL, Ansalem AKV, Hobman T, Fearns R, Marchant DJ, West FG. Dual Catalytic Synthesis of Antiviral Compounds Based on Metallocarbene-Azide Cascade Chemistry. J Org Chem 2018; 83:6829-6842. [PMID: 29663810 DOI: 10.1021/acs.joc.8b00222] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Aryl azides trap ortho-metallocarbene intermediates to generate indolenones possessing a reactive C-acylimine moiety, which can react with added indole nucleophiles to afford the 2-(3-indolyl)indolin-3-one scaffold found in the antiviral natural product isatisine A. This overall process occurs through a dual catalytic sequence at room temperature. Redox activation of the Cu(OTf)2 precatalyst by indole results in catalytically competent Cu(I) required for azide-metallocarbene coupling. The Brønsted acid that is also formed from Cu(OTf)2 reduction is responsible for catalysis of the C-C bond-forming indole addition step. This modular, procedurally simple method allows for rapid assembly of bis(indole) libraries, several of which proved to have anti-infective activity against respiratory syncytial virus and Zika virus.
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Affiliation(s)
- Bren Jordan P Atienza
- Department of Chemistry , University of Alberta , Edmonton , Alberta T6G 2G2 , Canada
| | - Lionel D Jensen
- Department of Medical Microbiology and Immunology, Faculty of Medicine and Dentistry , University of Alberta , Edmonton , Alberta T6G 2E1 , Canada
| | - Sarah L Noton
- Department of Microbiology , Boston University School of Medicine , Boston , Massachusetts 02118 , United States
| | - Anil Kumar Victoria Ansalem
- Department of Medical Microbiology and Immunology, Faculty of Medicine and Dentistry , University of Alberta , Edmonton , Alberta T6G 2E1 , Canada
| | - Tom Hobman
- Department of Medical Microbiology and Immunology, Faculty of Medicine and Dentistry , University of Alberta , Edmonton , Alberta T6G 2E1 , Canada
| | - Rachel Fearns
- Department of Microbiology , Boston University School of Medicine , Boston , Massachusetts 02118 , United States
| | - David J Marchant
- Department of Medical Microbiology and Immunology, Faculty of Medicine and Dentistry , University of Alberta , Edmonton , Alberta T6G 2E1 , Canada
| | - F G West
- Department of Chemistry , University of Alberta , Edmonton , Alberta T6G 2G2 , Canada
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16
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Font M, Cendón B, Seoane A, Mascareñas JL, Gulías M. Rhodium(III)‐Catalyzed Annulation of 2‐Alkenyl Anilides with Alkynes through C−H Activation: Direct Access to 2‐Substituted Indolines. Angew Chem Int Ed Engl 2018; 57:8255-8259. [DOI: 10.1002/anie.201802830] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Indexed: 01/09/2023]
Affiliation(s)
- Marc Font
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química OrgánicaUniversidade de Santiago de Compostela 15782 Santiago de Compostela Spain
| | - Borja Cendón
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química OrgánicaUniversidade de Santiago de Compostela 15782 Santiago de Compostela Spain
| | - Andrés Seoane
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química OrgánicaUniversidade de Santiago de Compostela 15782 Santiago de Compostela Spain
| | - José Luis Mascareñas
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química OrgánicaUniversidade de Santiago de Compostela 15782 Santiago de Compostela Spain
| | - Moisés Gulías
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química OrgánicaUniversidade de Santiago de Compostela 15782 Santiago de Compostela Spain
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17
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Font M, Cendón B, Seoane A, Mascareñas JL, Gulías M. Rhodium(III)‐Catalyzed Annulation of 2‐Alkenyl Anilides with Alkynes through C−H Activation: Direct Access to 2‐Substituted Indolines. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201802830] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Marc Font
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química OrgánicaUniversidade de Santiago de Compostela 15782 Santiago de Compostela Spain
| | - Borja Cendón
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química OrgánicaUniversidade de Santiago de Compostela 15782 Santiago de Compostela Spain
| | - Andrés Seoane
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química OrgánicaUniversidade de Santiago de Compostela 15782 Santiago de Compostela Spain
| | - José Luis Mascareñas
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química OrgánicaUniversidade de Santiago de Compostela 15782 Santiago de Compostela Spain
| | - Moisés Gulías
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química OrgánicaUniversidade de Santiago de Compostela 15782 Santiago de Compostela Spain
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18
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Singh S, Butani HH, Vachhani DD, Shah A, Van der Eycken EV. Ruthenium-catalysed one-pot regio- and diastereoselective synthesis of pyrrolo[1,2-a]indoles via cascade C–H functionalization/annulation. Chem Commun (Camb) 2017; 53:10812-10815. [DOI: 10.1039/c7cc06276a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Catalytic, regioselective and diastereoselective synthesis of pyrrolo[1,2-a]indoles through a cascade C–H activation and cyclization process.
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Affiliation(s)
- Sukhdev Singh
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC)
- Department of Chemistry
- University of Leuven (KU Leuven)
- Celestijnenlaan 200F
- Leuven
| | - Himanshu H. Butani
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC)
- Department of Chemistry
- University of Leuven (KU Leuven)
- Celestijnenlaan 200F
- Leuven
| | | | - Anamik Shah
- Department of Chemistry
- Saurashtra University
- Rajkot
- India
| | - Erik V. Van der Eycken
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC)
- Department of Chemistry
- University of Leuven (KU Leuven)
- Celestijnenlaan 200F
- Leuven
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19
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Cai B, Evans RW, Wu J, Panek JS. Total Synthesis of Nuclear Factor of Activated T-Cells-68 (NFAT-68): Sequential Use of Chiral Allenylsilane and Titanium Alkoxide-Mediated Reductive Coupling Bond Construction. Org Lett 2016; 18:4304-7. [PMID: 27513364 DOI: 10.1021/acs.orglett.6b02052] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Highly enantioenriched chiral allenylsilanes 4 were prepared in high yield through a scalable synthetic sequence, employing a modified copper-catalyzed SN2' reaction. These reagents were used for the production of enantioenriched homoproparglylic ethers 5, which were subjected to titanium alkoxide-mediated reductive coupling with acetylenic esters to produce (E,E)-dienes 6 bearing α,β,γ,δ-unsaturated esters. Both enantiomers of nuclear factor of activated T-cells-68 (NFAT-68) were synthesized in five steps with the sequential use of the two methods.
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Affiliation(s)
- Bin Cai
- Department of Chemistry, Metcalf Center for Science and Engineering, Boston University , 590 Commonwealth Avenue, Boston, Massachusetts 02215, United States
| | - Ryan W Evans
- Department of Chemistry, Metcalf Center for Science and Engineering, Boston University , 590 Commonwealth Avenue, Boston, Massachusetts 02215, United States
| | - Jie Wu
- Department of Chemistry, Metcalf Center for Science and Engineering, Boston University , 590 Commonwealth Avenue, Boston, Massachusetts 02215, United States
| | - James S Panek
- Department of Chemistry, Metcalf Center for Science and Engineering, Boston University , 590 Commonwealth Avenue, Boston, Massachusetts 02215, United States
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20
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Shin I, Lee D, Kim H. Substrate-Controlled Asymmetric Total Synthesis and Structure Revision of (−)-Bisezakyne A. Org Lett 2016; 18:4420-3. [DOI: 10.1021/acs.orglett.6b02239] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Iljin Shin
- College of Pharmacy and Research
Institute of Pharmaceutical Science and Technology (RIPST), Ajou University, Suwon 16499, Republic of Korea
| | - Dongjoo Lee
- College of Pharmacy and Research
Institute of Pharmaceutical Science and Technology (RIPST), Ajou University, Suwon 16499, Republic of Korea
| | - Hyoungsu Kim
- College of Pharmacy and Research
Institute of Pharmaceutical Science and Technology (RIPST), Ajou University, Suwon 16499, Republic of Korea
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21
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de la Torre A, Cuyamendous C, Bultel-Poncé V, Durand T, Galano JM, Oger C. Recent advances in the synthesis of tetrahydrofurans and applications in total synthesis. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.06.076] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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22
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Jang H, Shin I, Lee D, Kim H, Kim D. Stereoselective Substrate-Controlled Asymmetric Syntheses of both 2,5-cis
- and 2,5-trans
-Tetrahydrofuranoid Oxylipids: Stereodivergent Intramolecular Amide Enolate Alkylation. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201600637] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Hongjun Jang
- College of Pharmacy; Ajou University; Suwon 16499 Korea
| | - Iljin Shin
- College of Pharmacy; Ajou University; Suwon 16499 Korea
| | - Dongjoo Lee
- College of Pharmacy; Ajou University; Suwon 16499 Korea
| | - Hyoungsu Kim
- College of Pharmacy; Ajou University; Suwon 16499 Korea
| | - Deukjoon Kim
- College of Pharmacy; Seoul National University; Seoul 08826 Korea
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23
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Jang H, Shin I, Lee D, Kim H, Kim D. Stereoselective Substrate-Controlled Asymmetric Syntheses of both 2,5-cis
- and 2,5-trans
-Tetrahydrofuranoid Oxylipids: Stereodivergent Intramolecular Amide Enolate Alkylation. Angew Chem Int Ed Engl 2016; 55:6497-501. [DOI: 10.1002/anie.201600637] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Revised: 03/10/2016] [Indexed: 11/09/2022]
Affiliation(s)
- Hongjun Jang
- College of Pharmacy; Ajou University; Suwon 16499 Korea
| | - Iljin Shin
- College of Pharmacy; Ajou University; Suwon 16499 Korea
| | - Dongjoo Lee
- College of Pharmacy; Ajou University; Suwon 16499 Korea
| | - Hyoungsu Kim
- College of Pharmacy; Ajou University; Suwon 16499 Korea
| | - Deukjoon Kim
- College of Pharmacy; Seoul National University; Seoul 08826 Korea
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24
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Horino Y, Sugata M, Abe H. Palladium-Catalyzed Three-Component Reaction of 3-(Tri-n- butylstannyl)allyl Acetates, Aldehydes, and Triorganoboranes: An Alternative to the Carbonyl Allylation Using α,γ-Substituted Allylic Tin Reagents. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201501049] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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25
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Liang D, Li X, Li Y, Yang Y, Gao S, Cheng P. Br2-Catalyzed regioselective dehydrative coupling of indoles with acyloins: direct synthesis of α-(3-indolyl) ketones. RSC Adv 2016. [DOI: 10.1039/c6ra03321k] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
An efficient Br2-catalyzed synthesis of α-(3-indolyl) ketones via dehydrative coupling of simple indoles with acyloins is presented.
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Affiliation(s)
- Deqiang Liang
- Department of Chemistry
- Kunming University
- Kunming 650214
- China
| | - Xiangguang Li
- Department of Chemistry
- Kunming University
- Kunming 650214
- China
| | - Yanni Li
- Department of Chemistry
- Kunming University
- Kunming 650214
- China
| | - Yungang Yang
- Department of Chemistry
- Kunming University
- Kunming 650214
- China
| | - Shulin Gao
- Department of Chemistry
- Kunming University
- Kunming 650214
- China
| | - Ping Cheng
- School of Environmental and Chemical Engineering
- Shanghai University
- Shanghai 200444
- China
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26
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Foster RW, Tame CJ, Bučar DK, Hailes HC, Sheppard TD. Sustainable Synthesis of Chiral Tetrahydrofurans through the Selective Dehydration of Pentoses. Chemistry 2015; 21:15947-50. [PMID: 26407081 PMCID: PMC4648048 DOI: 10.1002/chem.201503510] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2015] [Indexed: 01/18/2023]
Abstract
L-Arabinose is an abundant resource available as a waste product of the sugar beet industry. Through use of a hydrazone-based strategy, L-arabinose was selectively dehydrated to form a chiral tetrahydrofuran on a multi-gram scale without the need for protecting groups. This approach was extended to other biomass-derived reducing sugars and the mechanism of the key cyclization investigated. This methodology was applied to the synthesis of a range of functionalized chiral tetrahydrofurans, as well as a formal synthesis of 3R-3-hydroxymuscarine.
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Affiliation(s)
- Robert W Foster
- Department of Chemistry, University College London, Christopher Ingold Laboratories20 Gordon Street, London, WC1H 0AJ (UK) E-mail: Homepage: http://www.tomsheppard.eu
| | - Christopher J Tame
- GlaxoSmithKline, Medicines Research CentreGunnels Wood Road, Stevenage, Herts, SG1 2NY (UK)
| | - Dejan-Krešimir Bučar
- Department of Chemistry, University College London, Christopher Ingold Laboratories20 Gordon Street, London, WC1H 0AJ (UK) E-mail: Homepage: http://www.tomsheppard.eu
| | - Helen C Hailes
- Department of Chemistry, University College London, Christopher Ingold Laboratories20 Gordon Street, London, WC1H 0AJ (UK) E-mail: Homepage: http://www.tomsheppard.eu
| | - Tom D Sheppard
- Department of Chemistry, University College London, Christopher Ingold Laboratories20 Gordon Street, London, WC1H 0AJ (UK) E-mail: Homepage: http://www.tomsheppard.eu
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