1
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Hu W, Huang J, Gao G, Guo W, Yin F, Sun Y, Huang J, Tao C, Tao L, Hu H. Palladium-Catalyzed Dearomatization of Indoles with Alkynes: Construction of Spirocyclohexaneindolenines. J Org Chem 2023. [PMID: 37470767 DOI: 10.1021/acs.joc.3c01041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/21/2023]
Abstract
A palladium-catalyzed dearomatization of indoles with alkynes has been developed, providing an efficient route to access a variety of synthetically useful spirocyclohexaneindolenines in moderate to good yields. The current method features a simple catalytic system, operational simplicity, and good functional group compatibility, which will contribute substantially to the development of dearomatization to access spiro compounds. Besides, the ubiquitous existence of spiro molecules, including spirocyclohexaneindolenines, in drugs and biological active molecules suggests the potential application of this methodology in medicinal chemistry.
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Affiliation(s)
- Weiming Hu
- Jiangsu Key Laboratory of Function Control Technology for Advanced Materials, School of Environmental and Chemical Engineering, Jiangsu Ocean University, Lianyungang, Jiangsu 222005, China
| | - Jiali Huang
- Jiangsu Key Laboratory of Function Control Technology for Advanced Materials, School of Environmental and Chemical Engineering, Jiangsu Ocean University, Lianyungang, Jiangsu 222005, China
| | - Gang Gao
- Jiangsu Province Lianyungang Flood Control and Motorized Rescue Team, Lianyungang, Jiangsu 222000, China
| | - Wenting Guo
- Jiangsu Key Laboratory of Function Control Technology for Advanced Materials, School of Environmental and Chemical Engineering, Jiangsu Ocean University, Lianyungang, Jiangsu 222005, China
| | - Fujun Yin
- Jiangsu Institute of Marine Resources Development, Jiangsu Ocean University, Lianyungang, Jiangsu 222005, China
| | - Yang Sun
- Jiangsu Key Laboratory of Function Control Technology for Advanced Materials, School of Environmental and Chemical Engineering, Jiangsu Ocean University, Lianyungang, Jiangsu 222005, China
| | - Jingjiao Huang
- Jiangsu Key Laboratory of Function Control Technology for Advanced Materials, School of Environmental and Chemical Engineering, Jiangsu Ocean University, Lianyungang, Jiangsu 222005, China
| | - Chuanzhou Tao
- Jiangsu Key Laboratory of Function Control Technology for Advanced Materials, School of Environmental and Chemical Engineering, Jiangsu Ocean University, Lianyungang, Jiangsu 222005, China
| | - Li Tao
- Office of the Academic Affairs, Jiangsu Ocean University, Lianyungang, Jiangsu 222005, China
| | - Huayou Hu
- Jiangsu Key Laboratory for Chemistry of Low Dimensional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University, Huaian, Jiangsu 223300, China
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2
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Reviriot Y, Michelet B, Beaud R, Martin‐Mingot A, Guégan F, Thibaudeau S, Rodriguez J, Bonne D. Hidden Heptacyclic Chiral
N
‐Acyl Iminium Ions: A New Entry to Enantioenriched Polycyclic Azepanes and Azocanes by Superacid‐Promoted Intramolecular Pictet‐Spengler Reaction. Chemistry 2022; 28:e202200432. [DOI: 10.1002/chem.202200432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Indexed: 11/08/2022]
Affiliation(s)
- Yasmin Reviriot
- Aix Marseille Université CNRS, Centrale Marseille iSm2 Marseille Marseille France
| | - Bastien Michelet
- Université de Poitiers UMR-CNRS 7285 IC2MP 4 rue Michel Brunet, TSA 51106 86073 Poitiers Cedex 9 France
| | - Rodolphe Beaud
- Aix Marseille Université CNRS, Centrale Marseille iSm2 Marseille Marseille France
| | - Agnès Martin‐Mingot
- Université de Poitiers UMR-CNRS 7285 IC2MP 4 rue Michel Brunet, TSA 51106 86073 Poitiers Cedex 9 France
| | - Frédéric Guégan
- Université de Poitiers UMR-CNRS 7285 IC2MP 4 rue Michel Brunet, TSA 51106 86073 Poitiers Cedex 9 France
| | - Sébastien Thibaudeau
- Université de Poitiers UMR-CNRS 7285 IC2MP 4 rue Michel Brunet, TSA 51106 86073 Poitiers Cedex 9 France
| | - Jean Rodriguez
- Aix Marseille Université CNRS, Centrale Marseille iSm2 Marseille Marseille France
| | - Damien Bonne
- Aix Marseille Université CNRS, Centrale Marseille iSm2 Marseille Marseille France
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3
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Wu X, Li W. The Applications of
β
‐Keto
Amides for Heterocycle Synthesis. J Heterocycl Chem 2022. [DOI: 10.1002/jhet.4497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Xiaoqiang Wu
- School of Materials and Chemistry University of Shanghai for Science and Technology Shanghai P. R. China
| | - Wanfang Li
- School of Materials and Chemistry University of Shanghai for Science and Technology Shanghai P. R. China
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4
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Li W, Zheng Y, Qu E, Bai J, Deng Q. β
‐Keto Amides: A Jack‐of‐All‐Trades Building Block in Organic Chemistry. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100692] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Wanfang Li
- School of Materials and Chemistry University of Shanghai for Science and Technology Shanghai 200093 P. R. China
| | - Yan Zheng
- School of Materials and Chemistry University of Shanghai for Science and Technology Shanghai 200093 P. R. China
| | - Erdong Qu
- School of Materials and Chemistry University of Shanghai for Science and Technology Shanghai 200093 P. R. China
| | - Jin Bai
- School of Materials and Chemistry University of Shanghai for Science and Technology Shanghai 200093 P. R. China
| | - Qinyue Deng
- School of Materials and Chemistry University of Shanghai for Science and Technology Shanghai 200093 P. R. China
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5
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Fraňová P, Marchalín Š, Šafář P, Cvečko M, Moncol J, Žídeková I, Othman M, Daïch A. Smart and concise entry to chiral spiro[cyclopentane-indolizidine]-tetraol diastereomers as a new aza-spirocyclic framework. NEW J CHEM 2021. [DOI: 10.1039/d1nj02180j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Synthesis of chiral oxacarba-spiroindolizidine tetraols was achieved by alkene cis-dihydroxylation, diol protection, and lactam carbonyl reduction followed ultimately by acetonide deprotection.
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Affiliation(s)
- Paula Fraňová
- Department of Organic Chemistry, Faculty of Chemical & Food Technology, Slovak University of Technology, Radlinského 9, SK-81237 Bratislava, Slovakia
| | - Štefan Marchalín
- Department of Organic Chemistry, Faculty of Chemical & Food Technology, Slovak University of Technology, Radlinského 9, SK-81237 Bratislava, Slovakia
- Normandie Univ, UNILEHAVRE, URCOM EA 3221, INC3M CNRS-FR 3038, UFR des Sciences et Techniques, Université Le Havre Normandie, BP: 1123, 25 rue Philipe Lebon, F-76063 Le Havre Cedex, France
| | - Peter Šafář
- Department of Organic Chemistry, Faculty of Chemical & Food Technology, Slovak University of Technology, Radlinského 9, SK-81237 Bratislava, Slovakia
| | - Matej Cvečko
- Department of Organic Chemistry, Faculty of Chemical & Food Technology, Slovak University of Technology, Radlinského 9, SK-81237 Bratislava, Slovakia
| | - Ján Moncol
- Department of Inorganic Chemistry, Faculty of Chemical & Food Technology, Slovak University of Technology, Radlinského 9, SK-81237, Bratislava, Slovakia
| | - Ivana Žídeková
- Central Laboratories, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, SK – 81237 Bratislava, Slovakia
| | - Mohamed Othman
- Normandie Univ, UNILEHAVRE, URCOM EA 3221, INC3M CNRS-FR 3038, UFR des Sciences et Techniques, Université Le Havre Normandie, BP: 1123, 25 rue Philipe Lebon, F-76063 Le Havre Cedex, France
| | - Adam Daïch
- Normandie Univ, UNILEHAVRE, URCOM EA 3221, INC3M CNRS-FR 3038, UFR des Sciences et Techniques, Université Le Havre Normandie, BP: 1123, 25 rue Philipe Lebon, F-76063 Le Havre Cedex, France
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6
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Xiao S, Chen B, Jiang Q, He L, Chu WD, He CY, Liu QZ. Palladium-catalyzed asymmetric [3 + 2] cycloaddition of vinyl aziridines and α,β-unsaturated imines generated in situ from aryl sulfonyl indoles. Org Chem Front 2021. [DOI: 10.1039/d1qo00408e] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
The first palladium-catalyzed asymmetric formal [3 + 2] cycloaddition of vinyl aziridines and in situ generated unsaturated imines has been established.
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Affiliation(s)
- Shan Xiao
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province
- College of Chemistry and Chemical Engineering
- China West Normal University
- Nanchong 637002
- China
| | - Bo Chen
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province
- College of Chemistry and Chemical Engineering
- China West Normal University
- Nanchong 637002
- China
| | - Qin Jiang
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province
- College of Chemistry and Chemical Engineering
- China West Normal University
- Nanchong 637002
- China
| | - Long He
- College of Chemistry and Materials Engineering
- Guiyang University
- Guiyang 550005
- China
| | - Wen-Dao Chu
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province
- College of Chemistry and Chemical Engineering
- China West Normal University
- Nanchong 637002
- China
| | - Cheng-Yu He
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province
- College of Chemistry and Chemical Engineering
- China West Normal University
- Nanchong 637002
- China
| | - Quan-Zhong Liu
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province
- College of Chemistry and Chemical Engineering
- China West Normal University
- Nanchong 637002
- China
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7
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Xie S, Ning C, Yu Q, Hou J, Xu J. Protecting‐Group‐Free
Total Synthesis and Biological Investigation of Cabucine Oxindole A
†. CHINESE J CHEM 2020. [DOI: 10.1002/cjoc.202000460] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Shengling Xie
- Department of Chemistry and Shenzhen Grubbs Institute and Guangdong Provincial Key Laboratory of Catalysis and Shenzhen Key Laboratory of Small Molecule Drug Discovery and Synthesis, Southern University of Science and Technology, Shenzhen Guangdong 518055 China
| | - Chengqing Ning
- Department of Chemistry and Shenzhen Grubbs Institute and Guangdong Provincial Key Laboratory of Catalysis and Shenzhen Key Laboratory of Small Molecule Drug Discovery and Synthesis, Southern University of Science and Technology, Shenzhen Guangdong 518055 China
| | - Qingzhen Yu
- Department of Chemistry and Shenzhen Grubbs Institute and Guangdong Provincial Key Laboratory of Catalysis and Shenzhen Key Laboratory of Small Molecule Drug Discovery and Synthesis, Southern University of Science and Technology, Shenzhen Guangdong 518055 China
| | - Jieping Hou
- Department of Chemistry and Shenzhen Grubbs Institute and Guangdong Provincial Key Laboratory of Catalysis and Shenzhen Key Laboratory of Small Molecule Drug Discovery and Synthesis, Southern University of Science and Technology, Shenzhen Guangdong 518055 China
| | - Jing Xu
- Department of Chemistry and Shenzhen Grubbs Institute and Guangdong Provincial Key Laboratory of Catalysis and Shenzhen Key Laboratory of Small Molecule Drug Discovery and Synthesis, Southern University of Science and Technology, Shenzhen Guangdong 518055 China
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8
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Zheng C, You SL. Exploring the Chemistry of Spiroindolenines by Mechanistically-Driven Reaction Development: Asymmetric Pictet-Spengler-type Reactions and Beyond. Acc Chem Res 2020; 53:974-987. [PMID: 32275392 DOI: 10.1021/acs.accounts.0c00074] [Citation(s) in RCA: 79] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The Pictet-Spengler reaction is a fundamental named reaction in organic chemistry, and it is the most straightforward method for the synthesis of tetrahydro-β-carbolines, a core structure embedded in numerous alkaloids. Spiroindolenines are often proposed as possible intermediates in Pictet-Spengler reactions. However, whether the spiroindolenine species is an intermediate in the mechanism of the asymmetric Pictet-Spengler reaction remains unclear. Questions about the role of the spiroindolenine species regarding the mechanism include the following: Can the spiroindolenine species be formed effectively under Pictet-Spengler conditions? If so, what is its fate? Is the delivery of the enantioenriched tetrahydro-β-carboline product related to the spiroindolenine intermediate? Previous studies regarding these questions have not reached a consensus. Therefore, elucidating these questions will advance the field of synthetic organic chemistry.The first highly enantioselective synthesis of spiroindolenines that have the same molecular scaffold as the proposed key intermediate of the Pictet-Spengler reaction was accomplished by an Ir-catalyzed intramolecular asymmetric allylic substitution reaction of an indol-3-yl allylic carbonate. In this reaction, a piperidine, pyrrolidine, or cyclopentane ring can be introduced in conjunction with the indolenine structure.Spiroindolenines were found to undergo ring-expansive migration reactions when treated with a catalytic amount of an acid, leading to tetrahydro-β-carbolines or related tetrahydrocarbazoles. Comprehensive DFT calculations and Born-Oppenheimer molecular dynamics simulations have provided insight into the mechanism of the migration process. It has been found that the stereochemistry is strongly correlated with the electronic properties of the migratory group along with the acidity of the catalyst. Close interactions between the positively charged migratory group and the electron-rich indole ring favor the stereospecificity of the migration. Furthermore, a continuous mechanistic spectrum of the Pictet-Spengler reactions can be obtained on the basis of two readily accessible energetic parameters that are derived from computed energies for competing transition states relative to a key intermediate species. This theoretical model provides a unified mechanistic understanding of the asymmetric Pictet-Spengler reaction, which has been further supported by rationally designed prototype reactions. Chemically and stereochemically controllable migration can be achieved when multiple potential migratory groups are available.The reactivity of spiroindolenines has also been explored beyond Pictet-Spengler reactions. A one-pot Ir-catalyzed asymmetric allylic dearomatization/stereoconvergent migration allows the facile synthesis of enantioenriched tetrahydro-β-carbolines from racemic starting materials. An unprecedented six- to seven-membered ring-expansive migration can be achieved when a vinyliminium moiety is involved as a highly reactive migratory group. This reaction facilitates the stereoselective synthesis of thermodynamically challenging indole-annulated seven-membered rings. It has also been found that the migration process can be interrupted. The electrophilic migratory group released from the retro-Mannich reaction of a spiroindolenine can be captured by an inter- or intramolecular nucleophile, thus providing new entries into structurally diverse polycyclic indole derivatives.Therefore, the mechanism of the Pictet-Spengler reaction can be probed by manipulating the reactivity of the spiroindolenine species. In turn, the mechanistic insights gained herein will aid in chemical transformations toward various target molecules. This study serves as a vivid example of the positive interplay between experimental and theoretical investigations in synthetic organic chemistry.
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Affiliation(s)
- Chao Zheng
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
| | - Shu-Li You
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
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9
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Pan Z, Liu Y, Hu F, Liu Q, Shang W, Ji X, Xia C. Enantioselective Synthesis of Spiroindolines via Cascade Isomerization/Spirocyclization/Dearomatization Reaction. Org Lett 2020; 22:1589-1593. [PMID: 31990194 DOI: 10.1021/acs.orglett.0c00181] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The spiroindoline skeleton featured with 2,7-diazaspiro[4.4]nonane exists in various structurally intricate and biologically active monoterpene indole alkaloids. A catalytic asymmetric cascade enamine isomerization/spirocyclization/dearomatization succession to construct the spiroindoline was developed, which employed the indolyl dihydropyridine as a substrate under catalysis of the chiral phosphoric acid. This cascade reaction provided various spiroindolines in both diastereoselective and enantionselective fashions.
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Affiliation(s)
- Zhiqiang Pan
- Key Laboratory of Medicinal Chemistry for Natural Resource (Ministry of Education and Yunnan Province), School of Chemical Science and Technology , Yunnan University , Kunming 650091 , China
| | - Yuchang Liu
- Key Laboratory of Medicinal Chemistry for Natural Resource (Ministry of Education and Yunnan Province), School of Chemical Science and Technology , Yunnan University , Kunming 650091 , China
| | - Fengchi Hu
- Key Laboratory of Medicinal Chemistry for Natural Resource (Ministry of Education and Yunnan Province), School of Chemical Science and Technology , Yunnan University , Kunming 650091 , China
| | - Qinglong Liu
- Key Laboratory of Medicinal Chemistry for Natural Resource (Ministry of Education and Yunnan Province), School of Chemical Science and Technology , Yunnan University , Kunming 650091 , China
| | - Wenbin Shang
- Key Laboratory of Medicinal Chemistry for Natural Resource (Ministry of Education and Yunnan Province), School of Chemical Science and Technology , Yunnan University , Kunming 650091 , China
| | - Xu Ji
- Key Laboratory of Medicinal Chemistry for Natural Resource (Ministry of Education and Yunnan Province), School of Chemical Science and Technology , Yunnan University , Kunming 650091 , China
| | - Chengfeng Xia
- Key Laboratory of Medicinal Chemistry for Natural Resource (Ministry of Education and Yunnan Province), School of Chemical Science and Technology , Yunnan University , Kunming 650091 , China
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10
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Zhang F, Li C, Qi C. A one-pot three-component strategy for highly diastereoselective synthesis of spirocycloalkane fused pyrazolo[3,4-b]pyridine derivatives using recyclable solid acid as a catalyst. Org Chem Front 2020. [DOI: 10.1039/d0qo00591f] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
An efficient and eco-friendly approach for highly diastereoselective synthesis of spirocycloalkane fused pyrazolo[3,4-b]pyridine derivatives has been developed.
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Affiliation(s)
- Furen Zhang
- School of Chemistry and Chemical Engineering
- Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process
- Shaoxing University
- Shaoxing
- China
| | - Chunmei Li
- School of Chemistry and Chemical Engineering
- Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process
- Shaoxing University
- Shaoxing
- China
| | - Chenze Qi
- School of Chemistry and Chemical Engineering
- Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process
- Shaoxing University
- Shaoxing
- China
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11
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Alfano AI, Zampella A, Novellino E, Brindisi M, Lange H. Harnessing interrupted Fischer in continuous flow: sustainable synthesis of (spiro)indolenine and (spiro)indoline privileged scaffolds. REACT CHEM ENG 2020. [DOI: 10.1039/d0re00329h] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
3,3-Disubstituted indolenines are obtained via a green and sustainable flow chemistry protocol for interrupted Fischer indolisation reactions.
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Affiliation(s)
- Antonella Ilenia Alfano
- SPOTS-LAB – Sustainable Pharmaceutical and Organic Technology and Synthesis Laboratory
- Department of Pharmacy
- University of Naples ‘Federico II’
- 80131 Naples
- Italy
| | - Angela Zampella
- SPOTS-LAB – Sustainable Pharmaceutical and Organic Technology and Synthesis Laboratory
- Department of Pharmacy
- University of Naples ‘Federico II’
- 80131 Naples
- Italy
| | - Ettore Novellino
- SPOTS-LAB – Sustainable Pharmaceutical and Organic Technology and Synthesis Laboratory
- Department of Pharmacy
- University of Naples ‘Federico II’
- 80131 Naples
- Italy
| | - Margherita Brindisi
- SPOTS-LAB – Sustainable Pharmaceutical and Organic Technology and Synthesis Laboratory
- Department of Pharmacy
- University of Naples ‘Federico II’
- 80131 Naples
- Italy
| | - Heiko Lange
- SPOTS-LAB – Sustainable Pharmaceutical and Organic Technology and Synthesis Laboratory
- Department of Pharmacy
- University of Naples ‘Federico II’
- 80131 Naples
- Italy
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12
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Sheng FT, Wang JY, Tan W, Zhang YC, Shi F. Progresses in organocatalytic asymmetric dearomatization reactions of indole derivatives. Org Chem Front 2020. [DOI: 10.1039/d0qo01124j] [Citation(s) in RCA: 104] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
This review summarizes the progresses in organocatalytic asymmetric dearomatization reactions of indole derivatives and their applications in total synthesis of natural products, and gives some insights into challenging issues in this research field.
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Affiliation(s)
- Feng-Tao Sheng
- School of Chemistry and Materials Science
- Jiangsu Normal University
- Xuzhou
- China
| | - Jing-Yi Wang
- School of Chemistry and Materials Science
- Jiangsu Normal University
- Xuzhou
- China
| | - Wei Tan
- School of Chemistry and Materials Science
- Jiangsu Normal University
- Xuzhou
- China
| | - Yu-Chen Zhang
- School of Chemistry and Materials Science
- Jiangsu Normal University
- Xuzhou
- China
| | - Feng Shi
- School of Chemistry and Materials Science
- Jiangsu Normal University
- Xuzhou
- China
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13
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Han H, Fang L, Chen J, Yang SD, Xia JB. Tetramethylguanidine (TMG)-catalyzed reductive spirocyclization of tryptamine derivatives with formic acid as a C1 synthon. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.04.048] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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14
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Zhu XX, Fan YY, Xu L, Liu QF, Wu JP, Li JY, Li J, Gao K, Yue JM. Alstonlarsines A-D, Four Rearranged Indole Alkaloids from Alstonia scholaris. Org Lett 2019; 21:1471-1474. [PMID: 30758208 DOI: 10.1021/acs.orglett.9b00230] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Four indole alkaloids, alstonlarsines A-D (1-4), were isolated from Alstonia scholaris and structurally characterized. Compound 1 possesses a new carbon skeleton with a cage-shaped 9-azatricyclo[4.3.1.03,8]decane motif, and compounds 2-4 feature a rare carbon skeleton that was found in nature for the first time. Plausible biosynthetic routes for 1-4 are proposed. Compound 1 showed DRAK2 inhibitory activity with an IC50 value of 11.65 ± 0.63 μΜ.
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Affiliation(s)
- Xu-Xin Zhu
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering , Lanzhou University , Lanzhou 730000 , People's Republic of China
| | - Yao-Yue Fan
- State Key Laboratory of Drug Research , Shanghai Institute of Materia Medica, Chinese Academy of Sciences , Shanghai 201203 , People's Republic of China
| | - Lei Xu
- State Key Laboratory of Drug Research , Shanghai Institute of Materia Medica, Chinese Academy of Sciences , Shanghai 201203 , People's Republic of China
| | - Qun-Fang Liu
- State Key Laboratory of Drug Research , Shanghai Institute of Materia Medica, Chinese Academy of Sciences , Shanghai 201203 , People's Republic of China
| | - Jiang-Ping Wu
- Laboratory of Immunology and Cardiovascular Research , Centre Hospitalier de l'Université de Montréal , 900 rue St-Denis , Montréal , Québec H2X 0A9 , Canada
| | - Jing-Ya Li
- State Key Laboratory of Drug Research , Shanghai Institute of Materia Medica, Chinese Academy of Sciences , Shanghai 201203 , People's Republic of China
| | - Jia Li
- State Key Laboratory of Drug Research , Shanghai Institute of Materia Medica, Chinese Academy of Sciences , Shanghai 201203 , People's Republic of China
| | - Kun Gao
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering , Lanzhou University , Lanzhou 730000 , People's Republic of China
| | - Jian-Min Yue
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering , Lanzhou University , Lanzhou 730000 , People's Republic of China.,State Key Laboratory of Drug Research , Shanghai Institute of Materia Medica, Chinese Academy of Sciences , Shanghai 201203 , People's Republic of China
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15
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Millington EL, Dondas HA, Fishwick CW, Kilner C, Grigg R. Catalytic bimetalic [Pd(0)/Ag(I) Heck-1,3-dipolar cycloaddition cascade reactions accessing spiro-oxindoles. Concomitant in situ generation of azomethine ylides and dipolarophile. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.05.017] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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16
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Ishikawa H. Development of Highly Efficient Organocatalytic Reaction toward Practical Total Synthesis of ent-Quinine. J SYN ORG CHEM JPN 2018. [DOI: 10.5059/yukigoseikyokaishi.76.414] [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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17
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Ding A, Meazza M, Guo H, Yang JW, Rios R. New development in the enantioselective synthesis of spiro compounds. Chem Soc Rev 2018; 47:5946-5996. [DOI: 10.1039/c6cs00825a] [Citation(s) in RCA: 217] [Impact Index Per Article: 36.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
In this review we summarize the latest developments in the enantioselective synthesis of spirocompounds. The most important organometallic and organocatalytic methodologies are highlighted.
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Affiliation(s)
- Aishun Ding
- Department of Chemistry
- Fudan University
- Shanghai
- People's Republic of China
| | - Marta Meazza
- School of Chemistry. University of Southampton. Highfield Campus
- Southampton
- UK
| | - Hao Guo
- Department of Chemistry
- Fudan University
- Shanghai
- People's Republic of China
| | - Jung Woon Yang
- Department of Energy Science
- Sungkyunkwan University
- Suwon 16419
- South Korea
| | - Ramon Rios
- School of Chemistry. University of Southampton. Highfield Campus
- Southampton
- UK
- Department of Energy Science
- Sungkyunkwan University
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18
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Yu Q, Guo P, Jian J, Chen Y, Xu J. Nine-step total synthesis of (−)-strychnofoline. Chem Commun (Camb) 2018; 54:1125-1128. [DOI: 10.1039/c7cc08938d] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The asymmetric synthesis of an anti-cancer spirooxindole alkaloid, (−)-strychnofoline, has, for the first time, been accomplished in only nine steps.
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Affiliation(s)
- Qingzhen Yu
- Department of Chemistry
- Southern University of Science and Technology
- Shenzhen
- Guangdong Province
- China
| | - Pan Guo
- Department of Chemistry
- Southern University of Science and Technology
- Shenzhen
- Guangdong Province
- China
| | - Jie Jian
- Department of Chemistry
- Southern University of Science and Technology
- Shenzhen
- Guangdong Province
- China
| | - Yuye Chen
- Department of Chemistry
- Southern University of Science and Technology
- Shenzhen
- Guangdong Province
- China
| | - Jing Xu
- Department of Chemistry
- Southern University of Science and Technology
- Shenzhen
- Guangdong Province
- China
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19
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Zhou Y, Li D, Tang S, Sun H, Huang J, Zhu Q. PhI(OAc)2-mediated dearomative C–N coupling: facile construction of the spiro[indoline-3,2′-pyrrolidine] skeleton. Org Biomol Chem 2018; 16:2039-2042. [DOI: 10.1039/c8ob00343b] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A facile construction of the spiro[indole-3,2′-pyrrolidine] skeleton, through diacetoxyiodobenzene (PIDA) mediated C–N bond-forming dearomatization of C3 sulfonamide linked indole derivatives, has been developed.
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Affiliation(s)
- Yali Zhou
- State Key Laboratory of Respiratory Disease
- Guangzhou Institutes of Biomedicine and Health
- University of Chinese Academy of Sciences
- Chinese Academy of Sciences
- Guangzhou 510530
| | - Dengke Li
- State Key Laboratory of Respiratory Disease
- Guangzhou Institutes of Biomedicine and Health
- University of Chinese Academy of Sciences
- Chinese Academy of Sciences
- Guangzhou 510530
| | - Shi Tang
- State Key Laboratory of Respiratory Disease
- Guangzhou Institutes of Biomedicine and Health
- University of Chinese Academy of Sciences
- Chinese Academy of Sciences
- Guangzhou 510530
| | - Hongwei Sun
- State Key Laboratory of Respiratory Disease
- Guangzhou Institutes of Biomedicine and Health
- University of Chinese Academy of Sciences
- Chinese Academy of Sciences
- Guangzhou 510530
| | - Jinbo Huang
- State Key Laboratory of Respiratory Disease
- Guangzhou Institutes of Biomedicine and Health
- University of Chinese Academy of Sciences
- Chinese Academy of Sciences
- Guangzhou 510530
| | - Qiang Zhu
- State Key Laboratory of Respiratory Disease
- Guangzhou Institutes of Biomedicine and Health
- University of Chinese Academy of Sciences
- Chinese Academy of Sciences
- Guangzhou 510530
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20
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Zhu DY, Fang L, Han H, Wang Y, Xia JB. Reductive CO2 Fixation via Tandem C–C and C–N Bond Formation: Synthesis of Spiro-indolepyrrolidines. Org Lett 2017; 19:4259-4262. [DOI: 10.1021/acs.orglett.7b01906] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Dao-Yong Zhu
- State Key Laboratory for
Oxo Synthesis and Selective Oxidation, Suzhou Research Institute of
LICP, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou 730000, P. R. China
| | - Lei Fang
- State Key Laboratory for
Oxo Synthesis and Selective Oxidation, Suzhou Research Institute of
LICP, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou 730000, P. R. China
| | - Hui Han
- State Key Laboratory for
Oxo Synthesis and Selective Oxidation, Suzhou Research Institute of
LICP, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou 730000, P. R. China
| | - Yazhou Wang
- State Key Laboratory for
Oxo Synthesis and Selective Oxidation, Suzhou Research Institute of
LICP, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou 730000, P. R. China
| | - Ji-Bao Xia
- State Key Laboratory for
Oxo Synthesis and Selective Oxidation, Suzhou Research Institute of
LICP, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou 730000, P. R. China
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21
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Pérez M, Ramos C, Massi L, Gazzola S, Taglienti C, Yayik N, Molins E, Viayna A, Luque FJ, Bosch J, Amat M. Enantioselective Synthesis of Spiro[indolizidine-1,3'-oxindoles]. Org Lett 2017; 19:4050-4053. [PMID: 28731721 DOI: 10.1021/acs.orglett.7b01818] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A three-step procedure for the enantioselective synthesis of spiro[indolizidine-1,3'-oxindoles], consisting of a stereoselective cyclocondensation reaction between (S)-tryptophanol and a prochiral or racemic δ-oxoester, bromination of the resulting oxazolopiperidone lactam, and a final stereoselective spirocyclization, is reported.
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Affiliation(s)
- Maria Pérez
- Department of Nutrition, Food Sciences and Gastronomy, Faculty of Pharmacy and Food Sciences, and Institute of Biomedicine (IBUB), University of Barcelona , 08921 Santa Coloma de Gramenet, Spain
| | - Carlos Ramos
- Laboratory of Organic Chemistry, Faculty of Pharmacy and Food Sciences, and Institute of Biomedicine (IBUB), University of Barcelona , 080028 Barcelona, Spain
| | - Lucia Massi
- Laboratory of Organic Chemistry, Faculty of Pharmacy and Food Sciences, and Institute of Biomedicine (IBUB), University of Barcelona , 080028 Barcelona, Spain
| | - Silvia Gazzola
- Laboratory of Organic Chemistry, Faculty of Pharmacy and Food Sciences, and Institute of Biomedicine (IBUB), University of Barcelona , 080028 Barcelona, Spain
| | - Chiara Taglienti
- Laboratory of Organic Chemistry, Faculty of Pharmacy and Food Sciences, and Institute of Biomedicine (IBUB), University of Barcelona , 080028 Barcelona, Spain
| | - Nihan Yayik
- Laboratory of Organic Chemistry, Faculty of Pharmacy and Food Sciences, and Institute of Biomedicine (IBUB), University of Barcelona , 080028 Barcelona, Spain
| | - Elies Molins
- Institut de Ciència de Materials de Barcelona (ICMAB, CSIC), Campus UAB, 08193 Bellaterra, Spain
| | - Antonio Viayna
- Department of Nutrition, Food Sciences and Gastronomy, Faculty of Pharmacy and Food Sciences, and Institute of Biomedicine (IBUB), University of Barcelona , 08921 Santa Coloma de Gramenet, Spain
| | - F Javier Luque
- Department of Nutrition, Food Sciences and Gastronomy, Faculty of Pharmacy and Food Sciences, and Institute of Biomedicine (IBUB), University of Barcelona , 08921 Santa Coloma de Gramenet, Spain
| | - Joan Bosch
- Laboratory of Organic Chemistry, Faculty of Pharmacy and Food Sciences, and Institute of Biomedicine (IBUB), University of Barcelona , 080028 Barcelona, Spain
| | - Mercedes Amat
- Laboratory of Organic Chemistry, Faculty of Pharmacy and Food Sciences, and Institute of Biomedicine (IBUB), University of Barcelona , 080028 Barcelona, Spain
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22
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Förster T, López-Tosco S, Ziegler S, Antonchick AP, Waldmann H. Enantioselective Organocatalytic Synthesis of a Secoyohimbane-Inspired Compound Collection with Neuritogenic Activity. Chembiochem 2017; 18:1098-1108. [DOI: 10.1002/cbic.201700015] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Indexed: 12/21/2022]
Affiliation(s)
- Tim Förster
- Abteilung Chemische Biologie; Max-Planck-Institut für Molekulare Physiologie; Otto-Hahn-Strasse 11 44227 Dortmund Germany
- Chemische Biologie; Fakultät Chemie; Technische Universität Dortmund; Otto-Hahn-Strasse 4a 44227 Dortmund Germany
| | - Sara López-Tosco
- Abteilung Chemische Biologie; Max-Planck-Institut für Molekulare Physiologie; Otto-Hahn-Strasse 11 44227 Dortmund Germany
| | - Slava Ziegler
- Abteilung Chemische Biologie; Max-Planck-Institut für Molekulare Physiologie; Otto-Hahn-Strasse 11 44227 Dortmund Germany
| | - Andrey P. Antonchick
- Abteilung Chemische Biologie; Max-Planck-Institut für Molekulare Physiologie; Otto-Hahn-Strasse 11 44227 Dortmund Germany
- Chemische Biologie; Fakultät Chemie; Technische Universität Dortmund; Otto-Hahn-Strasse 4a 44227 Dortmund Germany
| | - Herbert Waldmann
- Abteilung Chemische Biologie; Max-Planck-Institut für Molekulare Physiologie; Otto-Hahn-Strasse 11 44227 Dortmund Germany
- Chemische Biologie; Fakultät Chemie; Technische Universität Dortmund; Otto-Hahn-Strasse 4a 44227 Dortmund Germany
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23
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Liddon JTR, Clarke AK, Taylor RJK, Unsworth WP. Preparation and Reactions of Indoleninyl Halides: Scaffolds for the Synthesis of Spirocyclic Indole Derivatives. Org Lett 2016; 18:6328-6331. [DOI: 10.1021/acs.orglett.6b03221] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- John T. R. Liddon
- Department of Chemistry, University of York, Heslington, York YO10 5DD, U.K
| | - Aimee K. Clarke
- Department of Chemistry, University of York, Heslington, York YO10 5DD, U.K
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24
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Magné V, Blanchard F, Marinetti A, Voituriez A, Guinchard X. Synthesis of Spiro[piperidine-3,3′-oxindoles]viaGold(I)-Catalyzed Dearomatization ofN-Propargyl- andN-Homoallenyl-2-bromotryptamines. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600398] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Valentin Magné
- Institut de Chimie des Substances Naturelles; CNRS UPR 2301; Université Paris-Sud; Université Paris-Saclay; 1 av. de la Terrasse 91198 Gif-sur-Yvette France
| | - Florent Blanchard
- Institut de Chimie des Substances Naturelles; CNRS UPR 2301; Université Paris-Sud; Université Paris-Saclay; 1 av. de la Terrasse 91198 Gif-sur-Yvette France
| | - Angela Marinetti
- Institut de Chimie des Substances Naturelles; CNRS UPR 2301; Université Paris-Sud; Université Paris-Saclay; 1 av. de la Terrasse 91198 Gif-sur-Yvette France
| | - Arnaud Voituriez
- Institut de Chimie des Substances Naturelles; CNRS UPR 2301; Université Paris-Sud; Université Paris-Saclay; 1 av. de la Terrasse 91198 Gif-sur-Yvette France
| | - Xavier Guinchard
- Institut de Chimie des Substances Naturelles; CNRS UPR 2301; Université Paris-Sud; Université Paris-Saclay; 1 av. de la Terrasse 91198 Gif-sur-Yvette France
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25
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Tian L, Luo YC, Hu XQ, Xu PF. Recent Developments in the Synthesis of Chiral Compounds with Quaternary Centers by Organocatalytic Cascade Reactions. ASIAN J ORG CHEM 2016. [DOI: 10.1002/ajoc.201500486] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Li Tian
- State Key Laboratory of Applied Organic Chemistry; College of Chemistry and Chemical Engineering; Lanzhou University; Lanzhou 730000 PR China
| | - Yong-Chun Luo
- State Key Laboratory of Applied Organic Chemistry; College of Chemistry and Chemical Engineering; Lanzhou University; Lanzhou 730000 PR China
| | - Xiu-Qin Hu
- State Key Laboratory of Applied Organic Chemistry; College of Chemistry and Chemical Engineering; Lanzhou University; Lanzhou 730000 PR China
| | - Peng-Fei Xu
- State Key Laboratory of Applied Organic Chemistry; College of Chemistry and Chemical Engineering; Lanzhou University; Lanzhou 730000 PR China
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26
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James MJ, O'Brien P, Taylor RJK, Unsworth WP. Synthesis of Spirocyclic Indolenines. Chemistry 2015; 22:2856-81. [DOI: 10.1002/chem.201503835] [Citation(s) in RCA: 217] [Impact Index Per Article: 24.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Indexed: 12/12/2022]
Affiliation(s)
| | - Peter O'Brien
- Department of Chemistry; University of York; York YO10 5DD UK
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27
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Guo B, Ge L, Huang G, Zhao L, Chen J, Cao W, Wu X. Expedient Introduction of β-Methoxyacrylate Unit onto 3-Substituted Indoles and Application of the Resulting Indole-Dienes in Organocascade toward Indolino-Polycyclics. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500613] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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28
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Shiomi S, Sugahara E, Ishikawa H. Efficient Organocatalytic Construction of C4-Alkyl Substituted Piperidines and Their Application to the Synthesis of (+)-α-Skytanthine. Chemistry 2015; 21:14758-63. [PMID: 26333476 DOI: 10.1002/chem.201503117] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2015] [Indexed: 11/06/2022]
Abstract
Chiral piperidines which contain an alkyl group at C4 positions are one of the important architectures because it is appeared in several natural products. An efficient protocol for the preparation of C4-alkyl substituted chiral piperidines using secondary amine catalyzed formal aza [3+3] cycloaddition reaction with aliphatic α,β-unsaturated aldehydes and thiomalonamate derivatives is reported. In our reaction system, thiomalonamate is an excellent nucleophile and the addition of suitable acid and its amount is an important factor for the acceleration effect in organocatalytic reaction. Furthermore, water and MeOH also have an acceleration effect. These efforts lead to only 0.1 mol % catalyst loading in multigram scale synthesis for suitable reaction time. In addition, the efficient enantioselective total synthesis of (+)-α-skytanthine by using our developed reaction as key step was achieved in total 15 % yield. All carbon and nitrogen units were introduced by one step with high enantioselectivity.
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Affiliation(s)
- Shinya Shiomi
- Department of Chemistry, Graduate School of Science and Technology , Kumamoto University, 2-39-1, Kurokami, Chuo-ku, Kumamoto 860-8555 (Japan), Fax: (+81) 96-342-3397 http://www.sci.kumamoto-u.ac.jp/∼ishikawa/ishikawa-lab/Top.html
| | - Erika Sugahara
- Department of Chemistry, Graduate School of Science and Technology , Kumamoto University, 2-39-1, Kurokami, Chuo-ku, Kumamoto 860-8555 (Japan), Fax: (+81) 96-342-3397 http://www.sci.kumamoto-u.ac.jp/∼ishikawa/ishikawa-lab/Top.html
| | - Hayato Ishikawa
- Department of Chemistry, Graduate School of Science and Technology , Kumamoto University, 2-39-1, Kurokami, Chuo-ku, Kumamoto 860-8555 (Japan), Fax: (+81) 96-342-3397 http://www.sci.kumamoto-u.ac.jp/∼ishikawa/ishikawa-lab/Top.html.
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29
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Drouhin P, Taylor RJK. A Copper-Mediated Oxidative Coupling Route to 3H- and 1H-Indoles fromN-Aryl-enamines. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500112] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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30
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Arulananda Babu S, Padmavathi R, Ahmad Aslam N, Rajkumar V. Recent Developments on the Synthesis and Applications of Natural Products-Inspired Spirooxindole Frameworks. STUDIES IN NATURAL PRODUCTS CHEMISTRY 2015. [DOI: 10.1016/b978-0-444-63462-7.00008-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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31
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Quintard A, Cheshmedzhieva D, Sanchez Duque MDM, Gaudel-Siri A, Naubron JV, Génisson Y, Plaquevent JC, Bugaut X, Rodriguez J, Constantieux T. Origin of the enantioselectivity in organocatalytic Michael additions of β-ketoamides to α,β-unsaturated carbonyls: a combined experimental, spectroscopic and theoretical study. Chemistry 2014; 21:778-90. [PMID: 25382666 DOI: 10.1002/chem.201404481] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2014] [Revised: 09/18/2014] [Indexed: 12/27/2022]
Abstract
The organocatalytic enantioselective conjugate addition of secondary β-ketoamides to α,β-unsaturated carbonyl compounds is reported. Use of bifunctional Takemoto's thiourea catalyst allows enantiocontrol of the reaction leading either to simple Michael adducts or spirocyclic aminals in up to 99 % ee. The origin of the enantioselectivity has been rationalised based on combined DFT calculations and kinetic analysis. This study provides a deeper understanding of the reaction mechanism, which involves a predominant role of the secondary amide proton, and clarifies the complex interactions occurring between substrates and the catalyst.
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Affiliation(s)
- Adrien Quintard
- Aix Marseille Université, Centrale Marseille, CNRS, iSm2 UMR 7313, 13397, Marseille (France). Fax: (+33) 491-289-187
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32
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Wu X, Huang J, Guo B, Zhao L, Liu Y, Chen J, Cao W. Enantioselective Michael/aza-Michael/Cyclization Organocascade to Tetracyclic Spiroindolines: Concise Total Synthesis of Kopsinine and Aspidofractine. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201400363] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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33
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Du H, Rodriguez J, Bugaut X, Constantieux T. Organocatalytic enantio- and diastereoselective conjugate addition to nitroolefins: when β-ketoamides surpass β-ketoesters. Chemistry 2014; 20:8458-66. [PMID: 24895115 DOI: 10.1002/chem.201402192] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2014] [Indexed: 12/28/2022]
Abstract
Our findings on the bifunctional squaramide-catalyzed enantioselective conjugate addition of β-ketoamides to nitroolefins are disclosed. It appears that simple acyclic methylene β-ketoamides, unlike the extensively studied β-ketoesters, afford the products in excellent diastereoselectivities, and maintain high yields and enantioselectivities. Moreover, competition and kinetic studies were conducted to rationalize the observed reactivity and selectivity. The high level of diastereocontrol, along with the amenability of the amide group to postfunctionalization, dramatically increase the synthetic usefulness of the transformation.
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Affiliation(s)
- Haiying Du
- Aix Marseille Université, Centrale Marseille, CNRS iSm2 UMR 7313, 13397, Marseille (France), Fax: (+33) 491-289-187
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34
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Goudedranche S, Pierrot D, Constantieux T, Bonne D, Rodriguez J. A temporary-bridge strategy for enantioselective organocatalyzed synthesis of aza-seven-membered rings. Chem Commun (Camb) 2014; 50:15605-8. [DOI: 10.1039/c4cc07731h] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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35
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Li TJ, Liu ZQ, Yin HM, Yao CS, Jiang B, Wang XS, Tu SJ, Li XL, Li G. Metal-free [3 + 2 + 1]/[2 + 2 + 1] biscyclization: stereospecific construction with concomitant functionalization of indolizin-5(1H)-one. J Org Chem 2013; 78:11414-20. [PMID: 24168348 PMCID: PMC3876276 DOI: 10.1021/jo401969g] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A metal-free [3 + 2 + 1]/[2 + 2 + 1] biscyclization strategy has been developed for the stereospecific construction with concomitant derivation of biologically significant indolizin-5(1H)-ones from simple and commercial starting materials. The transformations are notable because they can yield five new σ bonds and six stereocenters including a quaternary carbon center in a single operation.
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Affiliation(s)
- Tuan-Jie Li
- School of Chemistry and Chemical Engineering, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials Jiangsu Normal University, Xuzhou 221116, P. R. China
| | - Zhong-Qiu Liu
- School of Chemistry and Chemical Engineering, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials Jiangsu Normal University, Xuzhou 221116, P. R. China
| | - Hong-Mei Yin
- School of Chemistry and Chemical Engineering, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials Jiangsu Normal University, Xuzhou 221116, P. R. China
| | - Chang-Sheng Yao
- School of Chemistry and Chemical Engineering, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials Jiangsu Normal University, Xuzhou 221116, P. R. China
| | - Bo Jiang
- School of Chemistry and Chemical Engineering, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials Jiangsu Normal University, Xuzhou 221116, P. R. China
| | - Xiang-Shan Wang
- School of Chemistry and Chemical Engineering, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials Jiangsu Normal University, Xuzhou 221116, P. R. China
| | - Shu-Jiang Tu
- School of Chemistry and Chemical Engineering, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials Jiangsu Normal University, Xuzhou 221116, P. R. China
| | | | - Guigen Li
- Institute of Chemistry & BioMedical Sciences, Nanjing Univers ity, Nanjing 210093, P. R. China
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX 79409-1061, USA
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36
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Géant PY, Urban M, Remeš M, Císařová I, Veselý J. Enantioselective Organocatalytic Synthesis of Sulfur-Containing Spirocyclic Compounds. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300931] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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37
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Highly Enantioselective Catalytic Synthesis of Neurite Growth-Promoting Secoyohimbanes. ACTA ACUST UNITED AC 2013; 20:500-9. [DOI: 10.1016/j.chembiol.2013.03.011] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2013] [Revised: 03/12/2013] [Accepted: 03/19/2013] [Indexed: 11/22/2022]
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38
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Wanner MJ, Ingemann S, van Maarseveen JH, Hiemstra H. Total Synthesis of the Spirocyclic Oxindole Alkaloids Corynoxine, Corynoxine B, Corynoxeine, and Rhynchophylline. European J Org Chem 2013. [DOI: 10.1002/ejoc.201201505] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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39
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Zhang H, Ma X, Kang H, Hong L, Wang R. The Enantioselective Formal Synthesis of Rhynchophylline and Isorhynchophylline. Chem Asian J 2012; 8:542-5. [DOI: 10.1002/asia.201201046] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2012] [Revised: 11/24/2012] [Indexed: 11/07/2022]
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