1
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Vampugani NMR, Shelke AB, Singh PB, Ahmad A, Kapat A. Regioselective Synthesis of the Tetrahydrocarbazole Core of Akuammiline Alkaloids via Palladium-Catalyzed Intramolecular Arylation Reaction. J Org Chem 2024; 89:4461-4466. [PMID: 38527008 DOI: 10.1021/acs.joc.3c02619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/27/2024]
Abstract
Tetrahydrocarbazole is the central core for several biologically active alkaloids, and regioselective synthesis of this core is a challenging task. Herein, we report an efficient strategy for the synthesis of this core involving palladium-catalyzed intramolecular arylation reaction with excellent regioselectivity (>99%) starting from N-phenyl-bromoalkene without having any relocation of double bonds via competitive palladium-catalyzed isomerization reaction. Broad functional group tolerance and exclusive regioselectivity have been observed for meta-substituted halide substrates. Furthermore, this reaction can be scalable on the gram scale.
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Affiliation(s)
- Naga M R Vampugani
- Department of Chemistry, School of Natural Sciences, Shiv Nadar (Institution of Eminence Deemed to be University) Delhi-NCR, Dadri, Chithera, Gautam Buddha Nagar, Greater Noida, Uttar Pradesh 201314, India
| | - Ajay B Shelke
- Department of Chemistry, School of Natural Sciences, Shiv Nadar (Institution of Eminence Deemed to be University) Delhi-NCR, Dadri, Chithera, Gautam Buddha Nagar, Greater Noida, Uttar Pradesh 201314, India
| | - Prashant B Singh
- Department of Chemistry, School of Natural Sciences, Shiv Nadar (Institution of Eminence Deemed to be University) Delhi-NCR, Dadri, Chithera, Gautam Buddha Nagar, Greater Noida, Uttar Pradesh 201314, India
| | - Asrar Ahmad
- Department of Chemistry, School of Natural Sciences, Shiv Nadar (Institution of Eminence Deemed to be University) Delhi-NCR, Dadri, Chithera, Gautam Buddha Nagar, Greater Noida, Uttar Pradesh 201314, India
| | - Ajoy Kapat
- Department of Chemistry, School of Natural Sciences, Shiv Nadar (Institution of Eminence Deemed to be University) Delhi-NCR, Dadri, Chithera, Gautam Buddha Nagar, Greater Noida, Uttar Pradesh 201314, India
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2
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Xu Z, Li X, Rose JA, Herzon SB. Finding activity through rigidity: syntheses of natural products containing tricyclic bridgehead carbon centers. Nat Prod Rep 2023; 40:1393-1431. [PMID: 37140079 PMCID: PMC10472132 DOI: 10.1039/d3np00008g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Covering: up to 2022Tricyclic bridgehead carbon centers (TBCCs) are a synthetically challenging substructure found in many complex natural products. Here we review the syntheses of ten representative families of TBCC-containing isolates, with the goal of outlining the strategies and tactics used to install these centers, including a discussion of the evolution of the successful synthetic design. We provide a summary of common strategies to inform future synthetic endeavors.
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Affiliation(s)
- Zhi Xu
- Department of Chemistry, Yale University, New Haven, Connecticut, 06520, USA.
| | - Xin Li
- Department of Chemistry, Yale University, New Haven, Connecticut, 06520, USA.
| | - John A Rose
- Department of Chemistry, Yale University, New Haven, Connecticut, 06520, USA.
| | - Seth B Herzon
- Department of Chemistry, Yale University, New Haven, Connecticut, 06520, USA.
- Departments of Pharmacology and Therapeutic Radiology, Yale School of Medicine, New Haven, Connecticut, 06520, USA
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3
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Horst B, Verdoorn DS, Hennig S, van der Heijden G, Ruijter E. Enantioselective Total Synthesis of (-)-Limaspermidine and (-)-Kopsinine by a Nitroaryl Transfer Cascade Strategy. Angew Chem Int Ed Engl 2022; 61:e202210592. [PMID: 36004723 PMCID: PMC9826323 DOI: 10.1002/anie.202210592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Indexed: 01/11/2023]
Abstract
We report an intramolecular conjugate addition/Truce-Smiles/E1cb cascade of 2-nitrobenzenesulfonamide-functionalized cyclohexenones as a new entry to the core scaffold of monoterpene indole alkaloids. The method was applied to the asymmetric total synthesis of (-)-limaspermidine, (-)-kopsinilam, and (-)-kopsinine, as well as the framework of the kopsifoline alkaloids, thus highlighting its complementarity to existing approaches involving the use of indole-based starting materials or the interrupted Fischer indole synthesis. Furthermore, we show that the cascade tolerates various substituents on the nitroarene, opening the way to other natural products as well as non-natural analogues.
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Affiliation(s)
- Brendan Horst
- Department of Chemistry and Pharmaceutical SciencesAmsterdam Institute of Molecular and Life Sciences (AIMMS)De Boelelaan 11081081 HZAmsterdamThe Netherlands
| | - Daniël S. Verdoorn
- Department of Chemistry and Pharmaceutical SciencesAmsterdam Institute of Molecular and Life Sciences (AIMMS)De Boelelaan 11081081 HZAmsterdamThe Netherlands
| | - Sven Hennig
- Department of Chemistry and Pharmaceutical SciencesAmsterdam Institute of Molecular and Life Sciences (AIMMS)De Boelelaan 11081081 HZAmsterdamThe Netherlands
| | - Gydo van der Heijden
- Department of Chemistry and Pharmaceutical SciencesAmsterdam Institute of Molecular and Life Sciences (AIMMS)De Boelelaan 11081081 HZAmsterdamThe Netherlands
| | - Eelco Ruijter
- Department of Chemistry and Pharmaceutical SciencesAmsterdam Institute of Molecular and Life Sciences (AIMMS)De Boelelaan 11081081 HZAmsterdamThe Netherlands
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4
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Boyarskaya DV, Ongaro A, Piemontesi C, Wang Q, Zhu J. Synthesis of 3-Acyloxyindolenines by TiCl 3-Mediated Reductive Cyclization of 2-( ortho-Nitroaryl)-Substituted Enol Esters. Org Lett 2022; 24:7004-7008. [PMID: 36121329 DOI: 10.1021/acs.orglett.2c02860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In the presence of TiCl3, the reductive cyclization of tetrasubstituted enol esters bearing a 2-(ortho-nitroaryl) substituent affords 3-acyloxy-2,3-disubstituted indolenines in good yields. A domino process involving the partial reduction of nitro to a nitroso group followed by 5-center-6π-electrocyclization, 1,2-acyloxy migration, and the further reduction of the resulting nitrone intermediate accounts for the reaction outcome. The so-obtained indolenines are converted smoothly to 2,2-disubstituted oxindoles via a sequence of saponification and semipinacol rearrangement.
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Affiliation(s)
- Dina V Boyarskaya
- Laboratory of Synthesis and Natural Products (LSPN), Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, Lausanne 1015, Switzerland
| | - Alberto Ongaro
- Laboratory of Synthesis and Natural Products (LSPN), Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, Lausanne 1015, Switzerland
| | - Cyril Piemontesi
- Laboratory of Synthesis and Natural Products (LSPN), Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, Lausanne 1015, Switzerland
| | - Qian Wang
- Laboratory of Synthesis and Natural Products (LSPN), Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, Lausanne 1015, Switzerland
| | - Jieping Zhu
- Laboratory of Synthesis and Natural Products (LSPN), Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, Lausanne 1015, Switzerland
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5
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Horst B, Verdoorn DS, Hennig S, van der Heijden G, Ruijter E. Enantioselective Total Synthesis of (–)‐Limaspermidine and (–)‐Kopsinine by a Nitroaryl Transfer Cascade Strategy. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202210592] [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)
- Brendan Horst
- Vrije Universiteit Amsterdam Chemistry & Pharmaceutical Sciences NETHERLANDS
| | - Daniël S. Verdoorn
- Vrije Universiteit Amsterdam Chemistry & Pharmaceutical Sciences NETHERLANDS
| | - Sven Hennig
- Vrije Universiteit Amsterdam Chemistry & Pharmaceutical Sciences NETHERLANDS
| | | | - Eelco Ruijter
- Vrije Universiteit Amsterdam Chemistry & Pharmaceutical Sciences De Boelelaan 11081081 HZNetherlands 1081 HZ Amsterdam NETHERLANDS
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6
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Yao JJ, Ding R, Chen X, Zhai H. Asymmetric Total Synthesis of (+)-Alstonlarsine A. J Am Chem Soc 2022; 144:14396-14402. [PMID: 35894835 DOI: 10.1021/jacs.2c06518] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The first asymmetric total synthesis of (+)-alstonlarsine A has been realized. The prominent features of the current synthesis include the following: (i) a Pd/self-adaptable ligand complex-catalyzed asymmetric allylic alkylation of 2-methyl-2-cyclopentenyl carbonate with 2-indolylsubstituted dimethyl malonate to establish the key stereocenter of C15, (ii) an intramolecular nitrile oxide-alkene [3 + 2] cycloaddition (INOC [3 + 2]) to construct the cyclohepta[b]indole backbone with the installment of the requisite stereochemistry of the all-carbon quaternary center of C20, and (iii) a late-stage interrupted Pictet-Spengler reaction (IPSR) to rapidly assemble the core structure of (+)-alstonlarsine A.
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Affiliation(s)
- Jun-Jun Yao
- The State Key Laboratory of Chemical Oncogenomics, Guangdong Provincial Key Laboratory of Nano-Micro Materials Research, School of Chemical Biology and Biotechnology, Shenzhen Graduate School of Peking University, Shenzhen 518055, China
| | - Rui Ding
- The State Key Laboratory of Chemical Oncogenomics, Guangdong Provincial Key Laboratory of Nano-Micro Materials Research, School of Chemical Biology and Biotechnology, Shenzhen Graduate School of Peking University, Shenzhen 518055, China
| | - Xiaoming Chen
- The State Key Laboratory of Chemical Oncogenomics, Guangdong Provincial Key Laboratory of Nano-Micro Materials Research, School of Chemical Biology and Biotechnology, Shenzhen Graduate School of Peking University, Shenzhen 518055, China.,The State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Hongbin Zhai
- The State Key Laboratory of Chemical Oncogenomics, Guangdong Provincial Key Laboratory of Nano-Micro Materials Research, School of Chemical Biology and Biotechnology, Shenzhen Graduate School of Peking University, Shenzhen 518055, China.,Shenzhen Bay Laboratory, Shenzhen 518055, China.,Institute of Marine Biomedicine, Shenzhen Polytechnic, Shenzhen 518055, China.,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, China
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7
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Driver TG, Zhu H. Recent Advances to Mediate Reductive Processes of Nitroarenes Using Single-Electron Transfer, Organomagnesium, or Organozinc Reagents. SYNTHESIS-STUTTGART 2022. [DOI: 10.1055/a-1792-6579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
AbstractNitroarenes are readily available compounds that are commonly utilized in reductive processes to form C–NAr bonds via reactive nitrogen intermediates. Recent advances in the development of reductive reactions of nitroarenes using organomagnesium, organozinc, and single-electron transfer reagents are discussed within this short review. 1 Introduction2 Organomagnesium-Mediated Reductive Reactions of Nitroarenes3 Organozinc- and Zinc-Mediated Reductive Reactions of Nitroarenes4 Iodine-Catalyzed Redox Cyclizations of Nitroarenes5 Titanium(III)-Mediated Reductive Cyclizations6 Sulfur-Mediated Reductive Reactions of Nitroarenes7 Alkoxide-Mediated Reductive Reactions of Nitroarenes8 4,4′-Bipyridine-Mediated Reductive Reactions of Nitroarenes9 Visible-Light-Driven Reductive Amination Reactions10 Electrochemical Reductive Reactions11 Conclusion
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8
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Zhu J, Zhang C, Liu L, Xue C, Cai Y, Liu XY, Xue F, Qin Y. Total Synthesis of Sarpagine Alkaloid (-)-Normacusine B. Org Lett 2022; 24:3515-3520. [PMID: 35544733 DOI: 10.1021/acs.orglett.2c01177] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
An asymmetric total synthesis of the sarpagine alkaloid (-)-normacusine B is presented. Salient features of this synthesis include a photocatalytic nitrogen-centered radical cascade reaction to assemble the tetrahydrocarbolinone skeleton, a titanium-mediated intramolecular amide-alkene coupling to construct the bridged azabicyclo[3.3.1]nonane moiety, and a nickel-catalyzed reductive Heck coupling to assemble the azabicyclo[2.2.2]octane ring system.
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Affiliation(s)
- Jianquan Zhu
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Chao Zhang
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Luyi Liu
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Chaoyun Xue
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Yukun Cai
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Xiao-Yu Liu
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Fei Xue
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Yong Qin
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
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9
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Structure units oriented approach towards collective synthesis of sarpagine-ajmaline-koumine type alkaloids. Nat Commun 2022; 13:908. [PMID: 35177620 PMCID: PMC8854706 DOI: 10.1038/s41467-022-28535-x] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Accepted: 01/21/2022] [Indexed: 12/26/2022] Open
Abstract
Sarpagine-Ajmaline-Koumine type monoterpenoid indole alkaloids represent a fascinating class of natural products with polycyclic and cage-like structures, interesting biological activities, and related biosynthetic origins. Herein we report a unified approach towards the asymmetric synthesis of these three types of alkaloids, leading to a collective synthesis of 14 natural alkaloids. Among them, akuammidine, 19-Z-akuammidine, vincamedine, vincarine, quebrachidine, vincamajine, alstiphylianine J, and dihydrokoumine are accomplished for the first time. Features of our synthesis are a new Mannich-type cyclization to construct the key indole-fused azabicyclo[3.3.1]nonane common intermediate, a SmI2 mediated coupling to fuse the aza-bridged E-ring, stereoselective olefinations to install either the 19-E or 19-Z terminal alkenes presented in the natural alkaloids, and an efficient iodo-induced cyclization to establish the two vicinal all-carbon quaternary centers in the Koumine-type alkaloids.
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10
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Reduction of bis(5-alkyl-2-furyl)(2-nitroaryl)methane with aqueous titanium trichloride solution. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.132407] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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11
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Zou P, Yang H, Wei J, Wang T, Zhai H. Total Synthesis of (-)-Picrinine, (-)-Scholarisine C, and (+)-5-β-Methoxyaspidophylline. Org Lett 2021; 23:6836-6840. [PMID: 34410141 DOI: 10.1021/acs.orglett.1c02393] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The first asymmetric total synthesis of three picrinine-type akuammiline alkaloids, (-)-picrinine, (-)-scholarisine C, and (+)-5-β-methoxyaspidophylline, has been accomplished. The synthesis features an efficient acid-promoted oxo-bridge ring-opening and further carbonyl O-cyclization to assemble the furoindoline scaffold, an unusual Dauben-Michno oxidation to construct the requisite α,β-unsaturated aldehyde functionality, and a nickel-mediated reductive Heck reaction to forge the [3.3.1]-azabicyclic core.
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Affiliation(s)
- Peng Zou
- The State Key Laboratory of Chemical Oncogenomics, Guangdong Provincial Key Laboratory of Nano-Micro Materials Research, School of Chemical Biology and Biotechnology, Shenzhen Graduate School of Peking University, Shenzhen 518055, China
| | - Hongjian Yang
- The State Key Laboratory of Chemical Oncogenomics, Guangdong Provincial Key Laboratory of Nano-Micro Materials Research, School of Chemical Biology and Biotechnology, Shenzhen Graduate School of Peking University, Shenzhen 518055, China
| | - Jian Wei
- The State Key Laboratory of Chemical Oncogenomics, Guangdong Provincial Key Laboratory of Nano-Micro Materials Research, School of Chemical Biology and Biotechnology, Shenzhen Graduate School of Peking University, Shenzhen 518055, China
| | - Taimin Wang
- The State Key Laboratory of Chemical Oncogenomics, Guangdong Provincial Key Laboratory of Nano-Micro Materials Research, School of Chemical Biology and Biotechnology, Shenzhen Graduate School of Peking University, Shenzhen 518055, China.,Institute of Marine Biomedicine, Shenzhen Polytechnic, Shenzhen 518055, China
| | - Hongbin Zhai
- The State Key Laboratory of Chemical Oncogenomics, Guangdong Provincial Key Laboratory of Nano-Micro Materials Research, School of Chemical Biology and Biotechnology, Shenzhen Graduate School of Peking University, Shenzhen 518055, China.,Institute of Marine Biomedicine, Shenzhen Polytechnic, Shenzhen 518055, China.,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, China
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12
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Delayre B, Fung C, Wang Q, Zhu J. Enantioselective Total Synthesis of (+)‐Nordasycarpidone, (+)‐Dasycarpidone, and (+)‐Uleine. Helv Chim Acta 2021. [DOI: 10.1002/hlca.202100088] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Bastien Delayre
- Laboratory of Synthesis and Natural Products Institute of Chemical Sciences and Engineering Ecole Polytechnique Fédérale de Lausanne EPFL-SB-ISIC-LSPN BCH5304, CH- 1015 Lausanne Switzerland
| | - Cédric Fung
- Laboratory of Synthesis and Natural Products Institute of Chemical Sciences and Engineering Ecole Polytechnique Fédérale de Lausanne EPFL-SB-ISIC-LSPN BCH5304, CH- 1015 Lausanne Switzerland
| | - Qian Wang
- Laboratory of Synthesis and Natural Products Institute of Chemical Sciences and Engineering Ecole Polytechnique Fédérale de Lausanne EPFL-SB-ISIC-LSPN BCH5304, CH- 1015 Lausanne Switzerland
| | - Jieping Zhu
- Laboratory of Synthesis and Natural Products Institute of Chemical Sciences and Engineering Ecole Polytechnique Fédérale de Lausanne EPFL-SB-ISIC-LSPN BCH5304, CH- 1015 Lausanne Switzerland
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13
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Gao B, Yao F, Zhang Z, Ding H. Total Synthesis of (+)-Alsmaphorazine C and Formal Synthesis of (+)-Strictamine: A Photo-Fries Approach. Angew Chem Int Ed Engl 2021; 60:10603-10607. [PMID: 33660898 DOI: 10.1002/anie.202101752] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Indexed: 01/04/2023]
Abstract
A bioinspired photo-Fries/imine capture cascade reaction was developed in continuous-flow mode, which facilitated the rapid construction of a series of diversely functionalized 2,7-heterocycle-fused tetrahydrocarbazoles, the ubiquitous core structures embedded in strychnos and akuammiline-type monoterpene indole alkaloids. The synthetic utility of this novel method has been preliminarily explored by the first total synthesis of (+)-alsmaphorazine C and formal synthesis of (+)-strictamine in a concise and efficient manner.
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Affiliation(s)
- Beiling Gao
- Department of Chemistry, Zhejiang University, Hangzhou, 310058, China
| | - Fengjie Yao
- Department of Chemistry, Zhejiang University, Hangzhou, 310058, China
| | - Zhaodong Zhang
- Department of Chemistry, Zhejiang University, Hangzhou, 310058, China
| | - Hanfeng Ding
- Department of Chemistry, Zhejiang University, Hangzhou, 310058, China.,State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin, 300071, China
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14
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Gao B, Yao F, Zhang Z, Ding H. Total Synthesis of (+)‐Alsmaphorazine C and Formal Synthesis of (+)‐Strictamine: A Photo‐Fries Approach. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202101752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Beiling Gao
- Department of Chemistry Zhejiang University Hangzhou 310058 China
| | - Fengjie Yao
- Department of Chemistry Zhejiang University Hangzhou 310058 China
| | - Zhaodong Zhang
- Department of Chemistry Zhejiang University Hangzhou 310058 China
| | - Hanfeng Ding
- Department of Chemistry Zhejiang University Hangzhou 310058 China
- State Key Laboratory of Elemento-Organic Chemistry Nankai University Tianjin 300071 China
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15
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16
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Andres R, Wang Q, Zhu J. Asymmetric Total Synthesis of (−)-Arborisidine and (−)-19-epi-Arborisidine Enabled by a Catalytic Enantioselective Pictet–Spengler Reaction. J Am Chem Soc 2020; 142:14276-14285. [DOI: 10.1021/jacs.0c05804] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Rémi Andres
- Laboratory of Synthesis and Natural Products, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN BCH5304, CH-1015 Lausanne, Switzerland
| | - Qian Wang
- Laboratory of Synthesis and Natural Products, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN BCH5304, CH-1015 Lausanne, Switzerland
| | - Jieping Zhu
- Laboratory of Synthesis and Natural Products, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN BCH5304, CH-1015 Lausanne, Switzerland
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17
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Heravi MM, Zadsirjan V, Hamidi H, Daraie M, Momeni T. Recent applications of the Wittig reaction in alkaloid synthesis. THE ALKALOIDS. CHEMISTRY AND BIOLOGY 2020; 84:201-334. [PMID: 32416953 DOI: 10.1016/bs.alkal.2020.02.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The Wittig reaction is the chemical reaction of an aldehyde or ketone with a triphenyl phosphonium ylide (the Wittig reagent) to afford an alkene and triphenylphosphine oxide. Noteworthy, this reaction results in the synthesis of alkenes in a selective and predictable fashion. Thus, it became as one of the keystone of synthetic organic chemistry, especially in the total synthesis of natural products, where the selectivity of a reaction is paramount of importance. A literature survey disclosed the existence of vast numbers of related reports and comprehensive reviews on the applications of this important name reaction in the total synthesis of natural products. However, the aim of this chapter is to underscore, the applications of the Wittig reaction in the total synthesis of one the most important and prevalent classes of natural products, the alkaloids, especially those showing important and diverse biological activities.
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Affiliation(s)
- Majid M Heravi
- Department of Chemistry, School of Science, Alzahra University, Tehran, Iran.
| | - Vahideh Zadsirjan
- Department of Chemistry, School of Science, Alzahra University, Tehran, Iran
| | - Hoda Hamidi
- Department of Chemistry, School of Science, Alzahra University, Tehran, Iran
| | - Mansoureh Daraie
- Department of Chemistry, School of Science, Alzahra University, Tehran, Iran
| | - Tayebeh Momeni
- Department of Chemistry, School of Science, Alzahra University, Tehran, Iran
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18
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Dagoneau D, Wang Q, Zhu J. Towards the Sarpagine-Ajmaline-Macroline Family of Indole Alkaloids: Enantioselective Synthesis of an N-Demethyl Alstolactone Diastereomer. Chemistry 2020; 26:4866-4873. [PMID: 32065430 DOI: 10.1002/chem.202000415] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Revised: 02/14/2020] [Indexed: 12/19/2022]
Abstract
the strategy involving the use of functionalized tetrahydro-6H-cycloocta[b]indol-6-one is reported as a key intermediate for synthesis of members of the sarpagine-ajmaline-macroline family of monoterpene indole alkaloids. The desired tricycle was synthesized through the following key steps: 1) Evans' syn-selective aldolization; 2) Liebeskind-Srogl cross-coupling using the phenylthiol ester of 3-chloropropanoic acid as a surrogate of acrylic thioester for the synthesis of 2,3-disubstituted indoles; and 3) ring-closing metathesis (RCM) for the formation of the eight-membered ring. An N-allylation followed by intramolecular 1,4-addition was planned for synthesis of the vobasine class of natural products. However, attempted cyclizations under a diverse set of conditions involving anionic, radical, and organopalladium/organonickel species failed to produce the bridged ring system. On the other hand, esterification of the pendant primary alcohol function with acetoacetic acid, followed by intramolecular Michael addition, afforded the desired tetracycle with excellent diastereoselectivity. Subsequent functional group manipulation and transannular cyclization of the amino alcohol afforded the N(1)-demethyl-3,5-diepi-alstolactone. We believe that the same synthetic route would afford the alstolactone should the amino alcohol with appropriate stereochemistry be used as the starting material.
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Affiliation(s)
- Dylan Dagoneau
- Laboratory of Synthesis and Natural Products, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, 1015, Lausanne, Switzerland
| | - Qian Wang
- Laboratory of Synthesis and Natural Products, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, 1015, Lausanne, Switzerland
| | - Jieping Zhu
- Laboratory of Synthesis and Natural Products, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, 1015, Lausanne, Switzerland
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19
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Zhang B, Wang X, Li C. Enantioselective Total Synthesis of (+)-Corymine and (-)-Deformylcorymine. J Am Chem Soc 2020; 142:3269-3274. [PMID: 31992040 DOI: 10.1021/jacs.0c00302] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
We report herein the first enantioselective total synthesis of akuammiline alkaloids (+)-corymine and (-)-deformylcorymine. Starting from commercially available N-nosyltryptamine, the target molecules are both achieved in 11 steps. Key elements of the design include (a) a copper-catalyzed enantioselective addition of dimethyl malonate to a 3-bromooxindole to secure the C7 all-carbon quaternary stereocenter, (b) a one-step construction of cyclohexyl and pyrrolidinyl rings via intramolecular nucleophilic C- and N-addition, and (c) a nickel-promoted 7-endo cyclization of alkenyl bromide to furnish the azepanyl ring. The strategy is further extended to the synthesis of another three members of the akuammiline family, namely, (-)-10-demethoxyvincorine, (-)-2(S)-cathafoline, and (-)-3-epi-dihydrocorymine 17-acetate.
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Affiliation(s)
- Benxiang Zhang
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis , Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 345 Lingling Road , Shanghai 200032 , P.R. China
| | - Xiaoqing Wang
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis , Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 345 Lingling Road , Shanghai 200032 , P.R. China
| | - Chaozhong Li
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis , Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 345 Lingling Road , Shanghai 200032 , P.R. China.,School of Materials and Chemical Engineering , Ningbo University of Technology , No. 201 Fenghua Road , Ningbo 315211 , P.R. China
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20
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Rossi-Ashton JA, Clarke AK, Taylor RJK, Unsworth WP. Modular Synthesis of Polycyclic Alkaloid Scaffolds via an Enantioselective Dearomative Cascade. Org Lett 2020; 22:1175-1181. [PMID: 31940208 PMCID: PMC7145359 DOI: 10.1021/acs.orglett.0c00053] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
![]()
The polycyclic core of the akuammiline
alkaloids can be synthesized
from simple tryptamine and tryptophol derivatives via a Ag(I)-catalyzed
enantioselective dearomative cyclization cascade sequence. The complex
tetracyclic scaffolds are prepared via a rapid, versatile, three-step
modular synthesis from simple commercially available indole derivatives
in high yields and enantiomeric excess (up to 99% yield and >99% ee).
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Affiliation(s)
| | - Aimee K Clarke
- Department of Chemistry , University of York , York , YO10 5DD , U.K
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21
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Ma S, Long D, Chen P, Shi H, Li H, Fang R, Wang X, Xie X, She X. Synthesis of 2,3-disubstituted indoles via a tandem reaction. Org Chem Front 2020. [DOI: 10.1039/d0qo00765j] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
A wide array of 2,3-disubstituted indoles were accessed in modest to good yields via a tandem reduction/condensation/fragmentation/cyclization sequence. Differential fragmentation made the reaction more complicated.
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Affiliation(s)
- Shiqiang Ma
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Dan Long
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Peiqi Chen
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Hongliang Shi
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Huilin Li
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Ran Fang
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Xiaolei Wang
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Xingang Xie
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Xuegong She
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
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22
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Li W, Chen Z, Yu D, Peng X, Wen G, Wang S, Xue F, Liu X, Qin Y. Asymmetric Total Syntheses of the Akuammiline Alkaloids (−)‐Strictamine and (−)‐Rhazinoline. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201901074] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Wenfei Li
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education MinistrySichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial TechnologyWest China School of PharmacySichuan University Chengdu 610041 P. R. China
| | - Zhitao Chen
- School of Pharmaceutic ScienceChongqing University Chongqing 401331 P. R. China
| | - Di Yu
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education MinistrySichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial TechnologyWest China School of PharmacySichuan University Chengdu 610041 P. R. China
| | - Xin Peng
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education MinistrySichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial TechnologyWest China School of PharmacySichuan University Chengdu 610041 P. R. China
| | - Guohua Wen
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education MinistrySichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial TechnologyWest China School of PharmacySichuan University Chengdu 610041 P. R. China
| | - Siqi Wang
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education MinistrySichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial TechnologyWest China School of PharmacySichuan University Chengdu 610041 P. R. China
| | - Fei Xue
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education MinistrySichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial TechnologyWest China School of PharmacySichuan University Chengdu 610041 P. R. China
| | - Xiao‐Yu Liu
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education MinistrySichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial TechnologyWest China School of PharmacySichuan University Chengdu 610041 P. R. China
| | - Yong Qin
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education MinistrySichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial TechnologyWest China School of PharmacySichuan University Chengdu 610041 P. R. China
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23
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Li W, Chen Z, Yu D, Peng X, Wen G, Wang S, Xue F, Liu X, Qin Y. Asymmetric Total Syntheses of the Akuammiline Alkaloids (−)‐Strictamine and (−)‐Rhazinoline. Angew Chem Int Ed Engl 2019; 58:6059-6063. [DOI: 10.1002/anie.201901074] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Indexed: 12/31/2022]
Affiliation(s)
- Wenfei Li
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education MinistrySichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial TechnologyWest China School of PharmacySichuan University Chengdu 610041 P. R. China
| | - Zhitao Chen
- School of Pharmaceutic ScienceChongqing University Chongqing 401331 P. R. China
| | - Di Yu
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education MinistrySichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial TechnologyWest China School of PharmacySichuan University Chengdu 610041 P. R. China
| | - Xin Peng
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education MinistrySichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial TechnologyWest China School of PharmacySichuan University Chengdu 610041 P. R. China
| | - Guohua Wen
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education MinistrySichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial TechnologyWest China School of PharmacySichuan University Chengdu 610041 P. R. China
| | - Siqi Wang
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education MinistrySichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial TechnologyWest China School of PharmacySichuan University Chengdu 610041 P. R. China
| | - Fei Xue
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education MinistrySichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial TechnologyWest China School of PharmacySichuan University Chengdu 610041 P. R. China
| | - Xiao‐Yu Liu
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education MinistrySichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial TechnologyWest China School of PharmacySichuan University Chengdu 610041 P. R. China
| | - Yong Qin
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education MinistrySichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial TechnologyWest China School of PharmacySichuan University Chengdu 610041 P. R. China
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24
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Zhang X, Kakde BN, Guo R, Yadav S, Gu Y, Li A. Total Syntheses of Echitamine, Akuammiline, Rhazicine, and Pseudoakuammigine. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201901086] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Xiang Zhang
- State Key Laboratory of Bioorganic and Natural Products ChemistryCenter for Excellence in Molecular SynthesisShanghai Institute of Organic ChemistryUniversity of Chinese Academy of SciencesChinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
| | - Badrinath N. Kakde
- State Key Laboratory of Bioorganic and Natural Products ChemistryCenter for Excellence in Molecular SynthesisShanghai Institute of Organic ChemistryUniversity of Chinese Academy of SciencesChinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
| | - Rui Guo
- State Key Laboratory of Bioorganic and Natural Products ChemistryCenter for Excellence in Molecular SynthesisShanghai Institute of Organic ChemistryUniversity of Chinese Academy of SciencesChinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
| | - Sonyabapu Yadav
- State Key Laboratory of Bioorganic and Natural Products ChemistryCenter for Excellence in Molecular SynthesisShanghai Institute of Organic ChemistryUniversity of Chinese Academy of SciencesChinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
| | - Yucheng Gu
- SyngentaJealott's Hill International Research Centre Bracknell Berkshire RG42 6EY UK
| | - Ang Li
- State Key Laboratory of Bioorganic and Natural Products ChemistryCenter for Excellence in Molecular SynthesisShanghai Institute of Organic ChemistryUniversity of Chinese Academy of SciencesChinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
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25
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Sato K, Kogure N, Kitajima M, Takayama H. Total Syntheses of Pleiocarpamine, Normavacurine, and C-Mavacurine. Org Lett 2019; 21:3342-3345. [PMID: 30998375 DOI: 10.1021/acs.orglett.9b01084] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The total syntheses of C-mavacurine-type indole alkaloids, (±)-pleiocarpamine, (±)-normavacurine, and (±)- C-mavacurine, were accomplished. The key step in the syntheses was the cyclization between the metal carbenoid at C16 and the N1 position in a Corynanthe-type compound that was equipped with a diazo function. For this cyclization, the N4 modification of the substrate using an amine-borane complex was indispensable to fix the molecular conformation.
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Affiliation(s)
- Keigo Sato
- Graduate School of Pharmaceutical Sciences , Chiba University , 1-8-1 Inohana, Chuo-ku , Chiba 260-8675 , Japan
| | - Noriyuki Kogure
- Graduate School of Pharmaceutical Sciences , Chiba University , 1-8-1 Inohana, Chuo-ku , Chiba 260-8675 , Japan
| | - Mariko Kitajima
- Graduate School of Pharmaceutical Sciences , Chiba University , 1-8-1 Inohana, Chuo-ku , Chiba 260-8675 , Japan
| | - Hiromitsu Takayama
- Graduate School of Pharmaceutical Sciences , Chiba University , 1-8-1 Inohana, Chuo-ku , Chiba 260-8675 , Japan
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26
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Zhang X, Kakde BN, Guo R, Yadav S, Gu Y, Li A. Total Syntheses of Echitamine, Akuammiline, Rhazicine, and Pseudoakuammigine. Angew Chem Int Ed Engl 2019; 58:6053-6058. [PMID: 30803132 DOI: 10.1002/anie.201901086] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2019] [Indexed: 01/30/2023]
Abstract
Echitamine (1) and akuammiline (2) are representative members of a fascinating class of monoterpenoid indole alkaloids. We report the syntheses of 2 and its congener deacetylakuammiline (3). The azabicyclo[3.3.1]nonane motif was assembled through silver-catalyzed internal alkyne cyclization, and one-pot C-O bond cleavage/C-N bond formation furnished the pentacyclic scaffold. Compound 3 then served as a common intermediate for preparing a series of structurally diverse and synthetically challenging congeners including 1. A position-selective Polonovski-Potier reaction followed by formal N-4 migration built the core of N-demethylechitamine (4) and 1. An alternative route featuring Meisenheimer rearrangement gave 4 as well. Oxidation of the alcohol within 3 gave rhazimal (5), which underwent tandem indolenine hydrolysis, hemiaminalization, and hemiketalization to form rhazicine (6). A sequence of N,O-ketalization and reductive amination secured the chemoselectivity of N-methylation, leading to pseudoakuammigine (7).
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Affiliation(s)
- Xiang Zhang
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
| | - Badrinath N Kakde
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
| | - Rui Guo
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
| | - Sonyabapu Yadav
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
| | - Yucheng Gu
- Syngenta, Jealott's Hill International Research Centre, Bracknell, Berkshire, RG42 6EY, UK
| | - Ang Li
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
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27
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Yang X, Zhou YH, Yang H, Wang SS, Ouyang Q, Luo QL, Guo QX. Asymmetric Diels–Alder Reaction of 3-Vinylindoles and Nitroolefins Promoted by Multiple Hydrogen Bonds. Org Lett 2019; 21:1161-1164. [DOI: 10.1021/acs.orglett.9b00104] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Xi Yang
- Key Laboratory of Applied Chemistry of Chongqing Municipality and Chongqing Key Laboratory of Soft-Matter Material Chemistry and Function Manufacturing, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Yu-Hao Zhou
- Key Laboratory of Applied Chemistry of Chongqing Municipality and Chongqing Key Laboratory of Soft-Matter Material Chemistry and Function Manufacturing, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Han Yang
- Key Laboratory of Applied Chemistry of Chongqing Municipality and Chongqing Key Laboratory of Soft-Matter Material Chemistry and Function Manufacturing, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Shan-Shan Wang
- Key Laboratory of Applied Chemistry of Chongqing Municipality and Chongqing Key Laboratory of Soft-Matter Material Chemistry and Function Manufacturing, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Qin Ouyang
- College of Pharmacy, Third Military Medical University, Chongqing 400038, China
| | - Qun-Li Luo
- Key Laboratory of Applied Chemistry of Chongqing Municipality and Chongqing Key Laboratory of Soft-Matter Material Chemistry and Function Manufacturing, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Qi-Xiang Guo
- Key Laboratory of Applied Chemistry of Chongqing Municipality and Chongqing Key Laboratory of Soft-Matter Material Chemistry and Function Manufacturing, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
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28
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Wu SY, Chen WL, Ma XP, Liang C, Su GF, Mo DL. Copper-Catalyzed [3+2] Cycloaddition and Interrupted Fischer Indolization to Prepare Polycyclic Furo[2,3-b]indolines from N
-Aryl Isatin Nitrones and Methylenecyclopropanes. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201801327] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Si-Yi Wu
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Ministry of Education of China; School of Chemistry and Pharmaceutical Sciences; Guangxi Normal University; 15 Yu Cai Road Guilin 541004 People's Republic of China
| | - Wei-Li Chen
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Ministry of Education of China; School of Chemistry and Pharmaceutical Sciences; Guangxi Normal University; 15 Yu Cai Road Guilin 541004 People's Republic of China
| | - Xiao-Pan Ma
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Ministry of Education of China; School of Chemistry and Pharmaceutical Sciences; Guangxi Normal University; 15 Yu Cai Road Guilin 541004 People's Republic of China
| | - Cui Liang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Ministry of Education of China; School of Chemistry and Pharmaceutical Sciences; Guangxi Normal University; 15 Yu Cai Road Guilin 541004 People's Republic of China
| | - Gui-Fa Su
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Ministry of Education of China; School of Chemistry and Pharmaceutical Sciences; Guangxi Normal University; 15 Yu Cai Road Guilin 541004 People's Republic of China
| | - Dong-Liang Mo
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Ministry of Education of China; School of Chemistry and Pharmaceutical Sciences; Guangxi Normal University; 15 Yu Cai Road Guilin 541004 People's Republic of China
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29
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Duong ATH, Simmons BJ, Alam MP, Campagna J, Garg NK, John V. Synthesis of Fused Indolines by Interrupted Fischer Indolization in a Microfluidic Reactor. Tetrahedron Lett 2019; 60:322-326. [PMID: 30631216 PMCID: PMC6322698 DOI: 10.1016/j.tetlet.2018.12.045] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
This study describes our development of a microfluidic reaction scheme for the synthesis of fused indoline ring systems found in several bioactive compounds. We have utilized a continuous-flow microfluidic reactor for the reaction of hydrazines with latent aldehydes through the interrupted Fischer indolization reaction to form fused indoline and azaindoline products. We have identified optimal conditions and evaluated the scope of this microfluidic reaction using various hydrazine and latent aldehyde surrogates. This green chemistry approach can be of general utility to rapidly produce indoline scaffolds and intermediates in a continuous manner.
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Affiliation(s)
- Alexander Tuan-Huy Duong
- Drug Discovery Laboratory, Department of Neurology, Mary S. Easton Center for Alzheimer's Disease Research, University of California, Los Angeles, CA 90095, United States
| | - Bryan J Simmons
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA 90095, United States
| | - Mohammad Parvez Alam
- Drug Discovery Laboratory, Department of Neurology, Mary S. Easton Center for Alzheimer's Disease Research, University of California, Los Angeles, CA 90095, United States
| | - Jesus Campagna
- Drug Discovery Laboratory, Department of Neurology, Mary S. Easton Center for Alzheimer's Disease Research, University of California, Los Angeles, CA 90095, United States
| | - Neil K Garg
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA 90095, United States
| | - Varghese John
- Drug Discovery Laboratory, Department of Neurology, Mary S. Easton Center for Alzheimer's Disease Research, University of California, Los Angeles, CA 90095, United States
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA 90095, United States
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30
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Wang Q, Hu J, Zheng N. A Photocatalyzed Cascade Approach Toward the Tetracyclic Core of Akuammiline Alkaloids. Org Lett 2019; 21:614-617. [DOI: 10.1021/acs.orglett.8b03648] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Qile Wang
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, Arkansas 72701, United States
| | - Jie Hu
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, Arkansas 72701, United States
| | - Nan Zheng
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, Arkansas 72701, United States
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31
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Palmieri A, Petrini M. Tryptophol and derivatives: natural occurrence and applications to the synthesis of bioactive compounds. Nat Prod Rep 2019; 36:490-530. [DOI: 10.1039/c8np00032h] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
This report presents some fundamental aspects related to the natural occurrence and bioactivity of tryptophol as well as the synthesis of tryptophols and their utilization for the preparation of naturally occurring alkaloid metabolites embedding the indole system.
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Affiliation(s)
- Alessandro Palmieri
- School of Science and Technology
- Chemistry Division
- University of Camerino
- Italy
| | - Marino Petrini
- School of Science and Technology
- Chemistry Division
- University of Camerino
- Italy
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32
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Reyes Loya D, De Paolis M. Nucleophilic‐Addition‐Initiated Ring Expansion and Selectivity in Anionic Fragmentation. Chemistry 2018; 25:1842-1847. [DOI: 10.1002/chem.201802862] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Indexed: 11/06/2022]
Affiliation(s)
- David Reyes Loya
- Normandie UniversitéUNIROUEN, INSA de RouenCNRS, Laboratoire COBRA(UMR 6014 & FR 3038) 76000 Rouen France
| | - Michaël De Paolis
- Normandie UniversitéUNIROUEN, INSA de RouenCNRS, Laboratoire COBRA(UMR 6014 & FR 3038) 76000 Rouen France
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33
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Mandal A, Mandal SM, Jana S, Bag SS, Das AK, Basak A. Synthesis of furan-fused 1,4-dihydrocarbazoles via an unusual Garratt-Braverman Cyclization of indolyl propargyl ethers and their antifungal activity. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.05.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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34
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de Souza Fernandes F, Cormanich RA, Zeoly LA, Formiga ALB, Coelho F. Employing Small Polyfunctionalized Molecules for a Diastereoselective Synthesis of Highly Substituted Indolines. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800528] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Fábio de Souza Fernandes
- Institute of Chemistry; Department of Organic Chemistry; University of Campinas; Campinas Brazil
| | - Rodrigo A. Cormanich
- Institute of Chemistry; Department of Organic Chemistry; University of Campinas; Campinas Brazil
| | - Lucas A. Zeoly
- Institute of Chemistry; Department of Organic Chemistry; University of Campinas; Campinas Brazil
| | - André Luiz B. Formiga
- Institute of Chemistry; Department of Inorganic Chemistry; University of Campinas; Rua Josué de Castro, s/n - P.O. Box 6154 13083-970 Campinas SP Brazil
| | - Fernando Coelho
- Institute of Chemistry; Department of Organic Chemistry; University of Campinas; Campinas Brazil
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35
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Picazo E, Morrill LA, Susick RB, Moreno J, Smith JM, Garg NK. Enantioselective Total Syntheses of Methanoquinolizidine-Containing Akuammiline Alkaloids and Related Studies. J Am Chem Soc 2018; 140:6483-6492. [PMID: 29694031 PMCID: PMC6085837 DOI: 10.1021/jacs.8b03404] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The akuammiline alkaloids are a structurally diverse class of bioactive natural products isolated from plants found in various parts of the world. A particularly challenging subset of akuammiline alkaloids are those that contain a methanoquinolizidine core. We describe a synthetic approach to these compounds that has enabled the first total syntheses of (+)-strictamine, (-)-2( S)-cathafoline, (+)-akuammiline, and (-)-Ψ-akuammigine. Our strategy relies on the development of the reductive interrupted Fischer indolization reaction to construct a common pentacyclic intermediate bearing five contiguous stereocenters, in addition to late-stage formation of the methanoquinolizidine framework using a deprotection-cyclization cascade. The total syntheses of (-)-Ψ-akuammigine and (+)-akuammiline mark the first preparations of akuammiline alkaloids containing both a methanoquinolizidine core and vicinal quaternary centers. Lastly, we describe the bioinspired reductive rearrangements of (+)-strictamine and (+)-akuammiline to ultimately provide (-)-10-demethoxyvincorine and a new analogue thereof.
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Affiliation(s)
- Elias Picazo
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Lucas A. Morrill
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Robert B. Susick
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Jesus Moreno
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Joel M. Smith
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Neil K. Garg
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
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36
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Pflästerer D, Rudolph M, Hashmi ASK. Gold-Catalyzed Hydrofunctionalizations and Spiroketalizations of Alkynes as Key Steps in Total Synthesis. Isr J Chem 2018. [DOI: 10.1002/ijch.201700056] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Daniel Pflästerer
- Heidelberg University; Organisch-Chemisches Institut; Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Matthias Rudolph
- Heidelberg University; Organisch-Chemisches Institut; Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - A. Stephen K. Hashmi
- Heidelberg University; Organisch-Chemisches Institut; Im Neuenheimer Feld 270 69120 Heidelberg Germany
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37
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Jarret M, Tap A, Kouklovsky C, Poupon E, Evanno L, Vincent G. Bioinspired Oxidative Cyclization of the Geissoschizine Skeleton for the Total Synthesis of (−)-17-nor-Excelsinidine. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201802610] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Maxime Jarret
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO); Equipe MSMT; Univ. Paris-Sud, CNRS; Université Paris-Saclay; 15, rue Georges Clémenceau 91405 Orsay, Cedex France
| | - Aurélien Tap
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO); Equipe MSMT; Univ. Paris-Sud, CNRS; Université Paris-Saclay; 15, rue Georges Clémenceau 91405 Orsay, Cedex France
| | - Cyrille Kouklovsky
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO); Equipe MSMT; Univ. Paris-Sud, CNRS; Université Paris-Saclay; 15, rue Georges Clémenceau 91405 Orsay, Cedex France
| | - Erwan Poupon
- Pharmacognosie et chimie des substances naturelles; BioCIS; Univ. Paris-Sud, Université Paris-Saclay, CNRS; 92290 Châtenay-Malabry France
| | - Laurent Evanno
- Pharmacognosie et chimie des substances naturelles; BioCIS; Univ. Paris-Sud, Université Paris-Saclay, CNRS; 92290 Châtenay-Malabry France
| | - Guillaume Vincent
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO); Equipe MSMT; Univ. Paris-Sud, CNRS; Université Paris-Saclay; 15, rue Georges Clémenceau 91405 Orsay, Cedex France
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38
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Jarret M, Tap A, Kouklovsky C, Poupon E, Evanno L, Vincent G. Bioinspired Oxidative Cyclization of the Geissoschizine Skeleton for the Total Synthesis of (-)-17-nor-Excelsinidine. Angew Chem Int Ed Engl 2018; 57:12294-12298. [PMID: 29575642 DOI: 10.1002/anie.201802610] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Revised: 03/19/2018] [Indexed: 11/10/2022]
Abstract
We report the first total synthesis of (-)-17-nor-excelsinidine, a zwitterionic monoterpene indole alkaloid that displays an unusual N4-C16 connection. Inspired by the postulated biosynthesis, we explored an oxidative coupling approach from the geissoschizine framework to forge the key ammonium-acetate connection. Two strategies allowed us to achieve this goal, namely an intramolecular nucleophilic substitution on a 16-chlorolactam with the N4 nitrogen atom or a direct I2 -mediated N4-C16 oxidative coupling from the enolate of geissoschizine.
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Affiliation(s)
- Maxime Jarret
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO), Equipe MSMT, Univ. Paris-Sud, CNRS, Université Paris-Saclay, 15, rue Georges Clémenceau, 91405, Orsay, Cedex, France
| | - Aurélien Tap
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO), Equipe MSMT, Univ. Paris-Sud, CNRS, Université Paris-Saclay, 15, rue Georges Clémenceau, 91405, Orsay, Cedex, France
| | - Cyrille Kouklovsky
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO), Equipe MSMT, Univ. Paris-Sud, CNRS, Université Paris-Saclay, 15, rue Georges Clémenceau, 91405, Orsay, Cedex, France
| | - Erwan Poupon
- Pharmacognosie et chimie des substances naturelles, BioCIS, Univ. Paris-Sud, Université Paris-Saclay, CNRS, 92290, Châtenay-Malabry, France
| | - Laurent Evanno
- Pharmacognosie et chimie des substances naturelles, BioCIS, Univ. Paris-Sud, Université Paris-Saclay, CNRS, 92290, Châtenay-Malabry, France
| | - Guillaume Vincent
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO), Equipe MSMT, Univ. Paris-Sud, CNRS, Université Paris-Saclay, 15, rue Georges Clémenceau, 91405, Orsay, Cedex, France
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39
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Liu X, Zhou Y, Yang Z, Li Q, Zhao L, Liu P. Iodine-Catalyzed C–H Amidation and Imination at the 2α-Position of 2,3-Disubstituted Indoles with Chloramine Salts. J Org Chem 2018; 83:4665-4673. [DOI: 10.1021/acs.joc.8b00286] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Xiaozu Liu
- Pharmacy School, Zunyi Medical University, Zunyi 563003, P. R. China
| | - Yuxiang Zhou
- Pharmacy School, Zunyi Medical University, Zunyi 563003, P. R. China
| | - Zhongqin Yang
- Pharmacy School, Zunyi Medical University, Zunyi 563003, P. R. China
| | - Qin Li
- Pharmacy School, Zunyi Medical University, Zunyi 563003, P. R. China
| | - Liang Zhao
- Pharmacy School, Zunyi Medical University, Zunyi 563003, P. R. China
| | - Peijun Liu
- Pharmacy School, Zunyi Medical University, Zunyi 563003, P. R. China
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40
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Chen ZT, Xiao T, Tang P, Zhang D, Qin Y. Total synthesis of akuammiline alkaloid (+)-strictamine. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.01.034] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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41
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Chaudhuri S, Ghosh S, Bhunia S, Bisai A. Catalytic asymmetric formal total syntheses of (+)- and (-)-cycloclavine. Chem Commun (Camb) 2018; 54:940-943. [PMID: 29318233 DOI: 10.1039/c7cc09045e] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report an expeditious catalytic asymmetric approach to clavine alkaloids via a key Heck cyclization. This reaction sets the formation of vicinal stereocenters with excellent diastereoselectivity. Utilizing the aforementioned strategy, the formal total synthesis of cycloclavine (1) has been achieved via another key late-stage ester-aminolysis of 6.
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Affiliation(s)
- Saikat Chaudhuri
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhauri, Bhopal - 462 066, Madhya Pradesh, India.
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42
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Wang C, Zhang S, Wang Y, Huang SH, Hong R. Total synthesis of strictamine: a tutorial for novel and efficient synthesis. Org Chem Front 2018. [DOI: 10.1039/c7qo00837f] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
The novelty and efficiency of the overall synthetic route are the key values being imparted to the younger generation of synthetic chemists. In this Highlights, synthesis of strictamine was tutored to students on the creativity of synthetic design.
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Affiliation(s)
- Chao Wang
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances
- Shanghai Institute of Organic Chemistry (CAS)
- Shanghai 200032
- China
- University of Chinese Academy of Sciences
| | - Shiju Zhang
- College of Chemical and Environmental Engineering
- Shanghai Institute of Technology
- Shanghai
- China
| | - Yan Wang
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances
- Shanghai Institute of Organic Chemistry (CAS)
- Shanghai 200032
- China
- University of Chinese Academy of Sciences
| | - Sha-Hua Huang
- College of Chemical and Environmental Engineering
- Shanghai Institute of Technology
- Shanghai
- China
| | - Ran Hong
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances
- Shanghai Institute of Organic Chemistry (CAS)
- Shanghai 200032
- China
- University of Chinese Academy of Sciences
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43
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Wegmann M, Henkel M, Bach T. C-H alkylation reactions of indoles mediated by Pd(ii) and norbornene: applications and recent developments. Org Biomol Chem 2018; 16:5376-5385. [PMID: 29993084 DOI: 10.1039/c8ob01025k] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The Catellani reaction enables an ortho-C-H activation based on oxidative addition of Pd(0) and an intermediary carbopalladation of norbornene. Among its variants, the recently developed C2-selective alkylation of indoles is particular as it employs Pd(ii) as the source of palladium. This review describes the mechanistic background of this transformation. Applications in total synthesis and in the synthesis of biologically relevant molecules are illustrated and further developments of the method are discussed.
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Affiliation(s)
- Marcus Wegmann
- Department Chemie and Catalysis Research Center (CRC), Technische Universität München, Lichtenbergstr. 4, 85747 Garching, Germany.
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44
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Nagaraju K, Ma D. Oxidative coupling strategies for the synthesis of indole alkaloids. Chem Soc Rev 2018; 47:8018-8029. [DOI: 10.1039/c8cs00305j] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Direct functionalization of indole through oxidative coupling reactions with enolates or phenols provides a powerful tool for assembling indole alkaloids.
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Affiliation(s)
- Karre Nagaraju
- State Key Laboratory of Bioorganic and Natural Products Chemistry
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Science
- Shanghai 200032
- China
| | - Dawei Ma
- State Key Laboratory of Bioorganic and Natural Products Chemistry
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Science
- Shanghai 200032
- China
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45
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46
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Lee GS, Namkoong G, Park J, Chen DY. Total Synthesis of Strychnine. Chemistry 2017; 23:16189-16193. [DOI: 10.1002/chem.201704455] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Indexed: 12/30/2022]
Affiliation(s)
- Geun Seok Lee
- Department of Chemistry Seoul National University, Gwanak-1 Gwanak-ro, Gwanak-gu Seoul 151-742 South Korea
| | - Gil Namkoong
- Department of Chemistry Seoul National University, Gwanak-1 Gwanak-ro, Gwanak-gu Seoul 151-742 South Korea
| | - Jisook Park
- Department of Chemistry Seoul National University, Gwanak-1 Gwanak-ro, Gwanak-gu Seoul 151-742 South Korea
| | - David Y.‐K. Chen
- Department of Chemistry Seoul National University, Gwanak-1 Gwanak-ro, Gwanak-gu Seoul 151-742 South Korea
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47
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Xie X, Wei B, Li G, Zu L. Unified Total Syntheses of Structurally Diverse Akuammiline Alkaloids. Org Lett 2017; 19:5430-5433. [PMID: 28952737 DOI: 10.1021/acs.orglett.7b02698] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The unified total syntheses of structurally diverse akuammiline alkaloids deformylcorymine (1), strictamine (2), and calophyline A (3) are reported. The strategy mimics the biosynthesis in nature at a strategic level, which allows for structural diversification from a common synthetic precursor by late-stage ring migrations.
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Affiliation(s)
- Xiaoni Xie
- School of Pharmaceutical Sciences, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Tsinghua University , Beijing 100084, China
| | - Bei Wei
- School of Pharmaceutical Sciences, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Tsinghua University , Beijing 100084, China
| | - Guang Li
- School of Pharmaceutical Sciences, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Tsinghua University , Beijing 100084, China
| | - Liansuo Zu
- School of Pharmaceutical Sciences, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Tsinghua University , Beijing 100084, China
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48
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Meng X, Du Y, Zhang Q, Yu A, Zhang Y, Jia J, Liu X. Direct Functionalization of Azepane via Azomethine Ylides: A Highly Efficient Synthesis of Spirooxindoles Bearing a 1-Azabicyclo[5.3.0]decane Moiety. ASIAN J ORG CHEM 2017. [DOI: 10.1002/ajoc.201700384] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Xiangtai Meng
- Department Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion; School of Chemistry&Chemical Engineering; Tianjin University of Technology; Tianjin 300384 P. R. China
| | - Yanlong Du
- Department Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion; School of Chemistry&Chemical Engineering; Tianjin University of Technology; Tianjin 300384 P. R. China
| | - Qi Zhang
- Department Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion; School of Chemistry&Chemical Engineering; Tianjin University of Technology; Tianjin 300384 P. R. China
| | - Aimin Yu
- Department Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion; School of Chemistry&Chemical Engineering; Tianjin University of Technology; Tianjin 300384 P. R. China
| | - Youquan Zhang
- Department Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion; School of Chemistry&Chemical Engineering; Tianjin University of Technology; Tianjin 300384 P. R. China
| | - Jiru Jia
- Department Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion; School of Chemistry&Chemical Engineering; Tianjin University of Technology; Tianjin 300384 P. R. China
| | - Xiujie Liu
- Department Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion; School of Chemistry&Chemical Engineering; Tianjin University of Technology; Tianjin 300384 P. R. China
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49
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Zhang B, Wang X, Cheng C, Sun D, Li C. Total Synthesis of (±)-Corymine. Angew Chem Int Ed Engl 2017; 56:7484-7487. [DOI: 10.1002/anie.201704086] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Indexed: 01/01/2023]
Affiliation(s)
- Benxiang Zhang
- Key Laboratory of Organofluorine Chemistry and Collaborative Innovation Center of Chemistry for Life Sciences; Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 P.R. China
| | - Xiaoqing Wang
- Key Laboratory of Organofluorine Chemistry and Collaborative Innovation Center of Chemistry for Life Sciences; Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 P.R. China
| | - Chao Cheng
- Key Laboratory of Organofluorine Chemistry and Collaborative Innovation Center of Chemistry for Life Sciences; Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 P.R. China
| | - Deqian Sun
- Key Laboratory of Organofluorine Chemistry and Collaborative Innovation Center of Chemistry for Life Sciences; Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 P.R. China
| | - Chaozhong Li
- Key Laboratory of Organofluorine Chemistry and Collaborative Innovation Center of Chemistry for Life Sciences; Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 P.R. China
- School of Materials and Chemical Engineering; Ningbo University of Technology; Ningbo 315211 P.R. China
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50
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Affiliation(s)
- Benxiang Zhang
- Key Laboratory of Organofluorine Chemistry and Collaborative Innovation Center of Chemistry for Life Sciences; Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 P.R. China
| | - Xiaoqing Wang
- Key Laboratory of Organofluorine Chemistry and Collaborative Innovation Center of Chemistry for Life Sciences; Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 P.R. China
| | - Chao Cheng
- Key Laboratory of Organofluorine Chemistry and Collaborative Innovation Center of Chemistry for Life Sciences; Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 P.R. China
| | - Deqian Sun
- Key Laboratory of Organofluorine Chemistry and Collaborative Innovation Center of Chemistry for Life Sciences; Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 P.R. China
| | - Chaozhong Li
- Key Laboratory of Organofluorine Chemistry and Collaborative Innovation Center of Chemistry for Life Sciences; Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 P.R. China
- School of Materials and Chemical Engineering; Ningbo University of Technology; Ningbo 315211 P.R. China
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