1
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Shi T, Hu W. Asymmetric Carbene Transfer: Enhancing Chemical Diversity for Drug Discovery. Chemistry 2024; 30:e202400971. [PMID: 38735847 DOI: 10.1002/chem.202400971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Revised: 05/10/2024] [Accepted: 05/12/2024] [Indexed: 05/14/2024]
Abstract
The quest to explore chemical space is vital for identifying novel disease targets, impacting both the effectiveness and safety profile of therapeutic agents. The tangible chemical space, currently estimated at a conservative 108 synthesized compounds, pales in comparison to the theoretically conceivable diversity of 1060 molecules. To bridge this vast gap, organic chemists are spearheading innovative methodologies that promise to broaden this limited chemical diversity. A beacon of this progressive wave is Asymmetric Carbene Transfer (ACT), a burgeoning strategy that significantly boosts molecular diversity with efficient bond-formation and precise chiral control. This review focuses on the capabilities of ACT in creating pharmaceutically significant molecules, encompassing an array of natural products and bioactive compounds. Through the lens of ACT, we discern its substantial influence on drug discovery, paving the way for novel therapeutic avenues by expanding the boundaries of molecular diversity. This review will shed light on prospective methodological developments of ACT and articulate their conceivable contributions to the medicinal chemistry arena.
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Affiliation(s)
- Taoda Shi
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, China, 510006
- Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education", Yantai University, Yantai, 264005, China
| | - Wenhao Hu
- Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education", Yantai University, Yantai, 264005, China
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2
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Chennamsetti H, Rathore KS, Chatterjee S, Mandal PK, Katukojvala S. Triple Nucleophilic Head-to-Tail Cascade Polycyclization of Diazodienals via Combination Catalysis: Direct Access to Cyclopentane Fused Aza-Polycycles with Six-Contiguous Stereocenters. JACS AU 2024; 4:2099-2107. [PMID: 38938806 PMCID: PMC11200238 DOI: 10.1021/jacsau.4c00134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Revised: 04/15/2024] [Accepted: 04/15/2024] [Indexed: 06/29/2024]
Abstract
Reported herein are the bench stable (2E,4E)-diazohexa-2,4-dienals (diazodienals) and their unprecedented polycyclization with aldimine and arylamines enabled by Rh(II)/Brønsted acid relay catalysis. This scalable and atom-economical reaction provides direct access to the biologically important azatricyclo[6.2.1.04,11]undecane fused polycycles having six-contiguous stereocenters. Mechanistic studies revealed that polycyclization proceeds through an unusual triple-nucleophilic cascade initiated by aldimine attack on remote Rh-carbenoid, 6π-electrocyclization of aza-trienyl azomethine ylide, stereoselective aza-Michael addition via iminium activation, and inverse electron-demand intramolecular aza Diels-Alder reaction. The π-π secondary interactions play a crucial role in the preorganization of reactive intermediates for the pericyclic reactions and, hence, the overall efficiency of the polycyclization.
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Affiliation(s)
| | | | | | | | - Sreenivas Katukojvala
- Department of Chemistry, Indian
Institute of Science Education & Research
Bhopal, Bhopal, Madhya Pradesh 462066, India
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3
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Lindner H, Amberg WM, Carreira EM. Iron-Mediated Photochemical Anti-Markovnikov Hydroazidation of Unactivated Olefins. J Am Chem Soc 2023; 145:22347-22353. [PMID: 37811819 PMCID: PMC10591317 DOI: 10.1021/jacs.3c09122] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Indexed: 10/10/2023]
Abstract
Unactivated olefins are converted to alkyl azides with bench-stable NaN3 in the presence of FeCl3·6H2O under blue-light irradiation. The products are obtained with anti-Markovnikov selectivity, and the reaction can be performed under mild ambient conditions in the presence of air and moisture. The transformation displays broad functional group tolerance, which renders it suitable for functionalization of complex molecules. Mechanistic investigations are conducted to provide insight into the hydroazidation reaction and reveal the role of water from the iron hydrate as the H atom source.
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Affiliation(s)
- Henry Lindner
- Department of Chemistry and
Applied Biosciences, Laboratory of Organic Chemistry, ETH Zürich, 8093 Zurich, Switzerland
| | - Willi M. Amberg
- Department of Chemistry and
Applied Biosciences, Laboratory of Organic Chemistry, ETH Zürich, 8093 Zurich, Switzerland
| | - Erick M. Carreira
- Department of Chemistry and
Applied Biosciences, Laboratory of Organic Chemistry, ETH Zürich, 8093 Zurich, Switzerland
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4
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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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5
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Chen C, Chen J, Wang H, Xu ZF, Duan S, Li CY. Catalyst-Free Synthesis of Polycyclic Spiroindolines by Cascade Reaction of 3-(2-Isocyanoethyl)indoles with 1-Sulfonyl-1,2,3-triazoles. J Org Chem 2023. [PMID: 37307412 DOI: 10.1021/acs.joc.3c00800] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
A catalyst-free cascade reaction of 3-(2-isocyanoethyl)indoles and 1-sulfonyl-1,2,3-triazoles was realized. This dearomative spirocyclization provided an efficient protocol to synthesize a series of polycyclic indolines bearing spiro-α-carboline in moderate to high yields in one step under thermal reaction conditions.
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Affiliation(s)
- Cong Chen
- School of Chemistry and Chemical Engineering, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Jing Chen
- School of Chemistry and Chemical Engineering, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Han Wang
- School of Chemistry and Chemical Engineering, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Ze-Feng Xu
- School of Chemistry and Chemical Engineering, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Shengguo Duan
- School of Chemistry and Chemical Engineering, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Chuan-Ying Li
- School of Chemistry and Chemical Engineering, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, China
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6
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Ji H, Knutson PC, Harrington CM, Ke YT, Ferreira EM. The Analysis of Two Distinct Strategies toward the Enantioselective Formal Total Synthesis of (+)-Gelsenicine. Tetrahedron 2023; 134:133278. [PMID: 37034426 PMCID: PMC10077972 DOI: 10.1016/j.tet.2023.133278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
A full account of a formal enantioselective total synthesis of (+)-gelsenicine is described. Separate strategies based on catalytic cycloisomerization as the central step are considered. One plan involves chirality transfer from enantioenriched substrates, while the other employs asymmetric catalysis. The chirality transfer strategy is less effective, while in the latter, phosphoramidite- and bisphosphine-gold complexes are tested and ultimately provide a key intermediate in high enantiopurity in our Gelsemium alkaloid syntheses.
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Affiliation(s)
- Haofan Ji
- Department of Chemistry, University of Georgia, Athens, Georgia 30602, United States
| | - Phil C Knutson
- Department of Chemistry, University of Georgia, Athens, Georgia 30602, United States
| | | | - Yan-Ting Ke
- Department of Chemistry, University of Georgia, Athens, Georgia 30602, United States
| | - Eric M Ferreira
- Department of Chemistry, University of Georgia, Athens, Georgia 30602, United States
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7
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Zhang Z, Chen Y, He L, Xie L, Chen Z. Regioselective Synthesis of Indole-Fused Seven-Membered N-Heterocycles via Photoredox-Catalyzed Intramolecular Cyclization. J Org Chem 2022; 87:14394-14406. [PMID: 36206145 DOI: 10.1021/acs.joc.2c01829] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Herein, we describe the construction of indole-fused seven-membered N- and O-heterocycles from indolyl α-diazocarbonyls via photoredox-catalyzed intramolecular cyclization. The photoredox process features operational simplicity, mild conditions, and as low as 0.1 mol % catalyst loading. The tricyclic heterocycles are obtained in yields of 24 to 67% with excellent regioselectivity. The practicality of this protocol is further demonstrated by gram-scale reactions carried out in both batch and continuous flow.
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Affiliation(s)
- Ziqin Zhang
- School of Pharmacy, Fujian Medical University, Fuzhou 350122, China
| | - Yifeng Chen
- School of Pharmacy, Fujian Medical University, Fuzhou 350122, China
| | - Linrong He
- School of Pharmacy, Fujian Medical University, Fuzhou 350122, China
| | - Lihua Xie
- School of Basic Medical Sciences, Fujian Medical University, Fuzhou 350122, China
| | - Zhitao Chen
- Fujian Key Laboratory of Drug Target Discovery and Structural and Functional Research, School of Pharmacy, Fujian Medical University, Fuzhou 350122, China
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8
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Knutson PC, Ji H, Harrington CM, Ke YT, Ferreira EM. Chirality Transfer and Asymmetric Catalysis: Two Strategies toward the Enantioselective Formal Total Synthesis of (+)-Gelsenicine. Org Lett 2022; 24:4971-4976. [PMID: 35796493 DOI: 10.1021/acs.orglett.2c01974] [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
Two strategies are described en route to an enantioselective total synthesis of gelsenicine. One approach centers on a chirality transfer cycloisomerization that ultimately fell short. Separately, an asymmetric catalysis route utilizing bisphosphine-gold-catalyzed cycloisomerization was pursued. A catalytic system was identified that provided a synthetic intermediate in our Gelsemium alkaloid syntheses in high enantiopurity and with absolute configuration determined by electronic circular dichroism, thus representing an enantioselective formal total synthesis of (+)-gelsenicine.
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Affiliation(s)
- Phil C Knutson
- Department of Chemistry, University of Georgia, Athens, Georgia 30602, United States
| | - Haofan Ji
- Department of Chemistry, University of Georgia, Athens, Georgia 30602, United States
| | | | - Yan-Ting Ke
- Department of Chemistry, University of Georgia, Athens, Georgia 30602, United States
| | - Eric M Ferreira
- Department of Chemistry, University of Georgia, Athens, Georgia 30602, United States
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9
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Wang N, Xiao X, Liu CX, Yao H, Huang N, Zou K. Recent Advances in the Total Synthesis of <i>Aspidosperma</i> and <i>Kopsia</i> Alkaloids Using Tetracyclic Pyridocarbazoles as Versatile Building Blocks. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200473] [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)
| | - Xiao Xiao
- Zhejiang University of Technology CHINA
| | | | - Hui Yao
- China Three Gorges University CHINA
| | | | - Kun Zou
- China Three Gorges University CHINA
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10
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Mishra DR, Panda BS, Nayak S, Panda J, Mohapatra S. Recent Advances in the Synthesis of 5‐Membered
N
‐Heterocycles via Rhodium Catalysed Cascade Reactions. ChemistrySelect 2022. [DOI: 10.1002/slct.202200531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Deepak R. Mishra
- Organic Synthesis Laboratory Department of Chemistry Ravenshaw University Cuttack 753003 Odisha India
| | - Bhabani S. Panda
- Organic Synthesis Laboratory Department of Chemistry Ravenshaw University Cuttack 753003 Odisha India
| | - Sabita Nayak
- Organic Synthesis Laboratory Department of Chemistry Ravenshaw University Cuttack 753003 Odisha India
| | - Jasmine Panda
- Organic Synthesis Laboratory Department of Chemistry Ravenshaw University Cuttack 753003 Odisha India
| | - Seetaram Mohapatra
- Organic Synthesis Laboratory Department of Chemistry Ravenshaw University Cuttack 753003 Odisha India
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11
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Qin B, Lu Z, Jia Y. Divergent Total Synthesis of Four Kopsane Alkaloids: N-Carbomethoxy-10,22-dioxokopsane, Epikopsanol-10-lactam, 10,22-Dioxokopsane, and N-Methylkopsanone. Angew Chem Int Ed Engl 2022; 61:e202201712. [PMID: 35191139 DOI: 10.1002/anie.202201712] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Indexed: 01/07/2023]
Abstract
We have achieved the divergent total synthesis of four kopsane alkaloids which share a complex heptacyclic caged ring system. Key transformations include an asymmetric Diels-Alder reaction to assemble the central bicyclo[2.2.2]octane moiety and the quaternary stereocenter at C20, a SmI2 -mediated cascade reduction/aldol reaction to construct the five-membered ring and the quaternary stereocenter at C7, and a late-stage cascade reductive amination/cyclization to establish the highly strained caged ring system.
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Affiliation(s)
- Bo Qin
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, and Chemical Biology Center, Peking University, 38 Xueyuan Road, Beijing, 100191, P. R. China
| | - Zhepei Lu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, and Chemical Biology Center, Peking University, 38 Xueyuan Road, Beijing, 100191, P. R. China
| | - Yanxing Jia
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, and Chemical Biology Center, Peking University, 38 Xueyuan Road, Beijing, 100191, P. R. China
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12
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Kurose T, Itoga M, Nanjo T, Takemoto Y, Tsukano C. Total Synthesis of Lyconesidine B: Approach to a Three-Dimensional Tetracyclic Skeleton of Amine-Type Fawcettimine Core and Studies of Asymmetric Synthesis. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2022. [DOI: 10.1246/bcsj.20220049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Tomohiro Kurose
- Graduate School of Pharmaceutical Sciences, Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501
| | - Moeko Itoga
- Graduate School of Pharmaceutical Sciences, Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501
| | - Takeshi Nanjo
- Graduate School of Pharmaceutical Sciences, Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501
| | - Yoshiji Takemoto
- Graduate School of Pharmaceutical Sciences, Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501
| | - Chihiro Tsukano
- Graduate School of Agriculture, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto 606-8502
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13
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Heravi MM, Nazari A. Samarium(ii) iodide-mediated reactions applied to natural product total synthesis. RSC Adv 2022; 12:9944-9994. [PMID: 35424959 PMCID: PMC8965710 DOI: 10.1039/d1ra08163b] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2021] [Accepted: 03/12/2022] [Indexed: 12/22/2022] Open
Abstract
Natural product synthesis remains a field in which new synthetic methods and reagents are continually being evaluated. Due to the demanding structures and complex functionality of many natural products, only powerful and selective methods and reagents will be highlighted in this proceeding. Since its introduction by Henri Kagan, samarium(ii) iodide (SmI2, Kagan's reagent) has found increasing use in chemical synthesis. Over the years, many reviews have been published on the application of SmI2 in numerous reductive coupling procedures as well as in natural product total synthesis. This review highlights recent advances in SmI2-mediated synthetic strategies, as applied in the total synthesis of natural products since 2004.
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Affiliation(s)
- Majid M Heravi
- Department of Chemistry, School of Science, Alzahra University PO Box 1993891176 Vanak Tehran Iran +98 21 88041344 +98 21 88044051
| | - Azadeh Nazari
- Department of Chemistry, School of Science, Alzahra University PO Box 1993891176 Vanak Tehran Iran +98 21 88041344 +98 21 88044051
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14
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Qin B, Lu Z, Jia Y. Divergent Total Synthesis of Four Kopsane Alkaloids:
N
‐Carbomethoxy‐10,22‐dioxokopsane, Epikopsanol‐10‐lactam, 10,22‐Dioxokopsane, and
N
‐Methylkopsanone. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202201712] [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)
- Bo Qin
- State Key Laboratory of Natural and Biomimetic Drugs School of Pharmaceutical Sciences and Chemical Biology Center Peking University 38 Xueyuan Road Beijing 100191 P. R. China
| | - Zhepei Lu
- State Key Laboratory of Natural and Biomimetic Drugs School of Pharmaceutical Sciences and Chemical Biology Center Peking University 38 Xueyuan Road Beijing 100191 P. R. China
| | - Yanxing Jia
- State Key Laboratory of Natural and Biomimetic Drugs School of Pharmaceutical Sciences and Chemical Biology Center Peking University 38 Xueyuan Road Beijing 100191 P. R. China
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15
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Sara AA, Um-e-Farwa UEF, Saeed A, Kalesse M. Recent Applications of the Diels–Alder Reaction in the Synthesis of Natural Products (2017–2020). SYNTHESIS-STUTTGART 2022. [DOI: 10.1055/a-1532-4763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
AbstractThe Diels–Alder reaction has long been established as an extremely useful procedure in the toolbox of natural product chemists. It tolerates a wide spectrum of building blocks of different complexity and degrees of derivatization, and enables the formation of six-membered rings with well-defined stereochemistry. In recent years, many total syntheses of natural products have been reported that rely, at some point, on the use of a [4+2]-cycloaddition step. Among classic approaches, several modifications of the Diels–Alder reaction, such as hetero-Diels–Alder reactions, dehydro-Diels–Alder reactions and domino-Diels–Alder reactions, have been employed to extend the scope of this process in the synthesis of natural products. Our short review covers applications of the Diels–Alder reaction in natural product syntheses between 2017 and 2020, as well as selected methodologies which are inspired by, or that can be used to access natural products.1 Introduction2 Syntheses from 20173 Syntheses from 20184 Syntheses from 20195 Syntheses from 20206 Conclusion
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Affiliation(s)
| | | | - Aamer Saeed
- Quaid-I-Azam University, Department of Chemistry
| | - Markus Kalesse
- Leibniz Universität Hannover, Institut für Organische Chemie
- Helmholtz Zentrum für Infektionsforschung (HZI)
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16
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Wang JJ, Bai R, Yang MQ, Chen ZY, Wang MD, Zhao Q, Lin G, Fu JG, Feng CG. Total Synthesis of (-)-Amathaspiramide A via One-pot Aldol Addition/Transamidification Reaction. Org Chem Front 2022. [DOI: 10.1039/d2qo00032f] [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
The total synthesis of (-)-amathaspiramide A was accomplished through an efficient construction of chiral aza-spirobicyclic core by aldol addition/transamidification cascade. The scope of the efficient construction methodology was investigated. Configuration...
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17
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Nassar Y, Piva O. Photoredox-catalyzed hydroxymethylation of β-ketoesters: application to the synthesis of [3.3.3] propellane lactones. Org Biomol Chem 2021; 19:9251-9259. [PMID: 34664603 DOI: 10.1039/d1ob01712h] [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
Photoredox-catalysed hydroxymethylation of β-ketoesters substituted by an allyl subunit on the α-position afforded directly the corresponding bicyclic lactones possessing both a hydroxy group and an unsaturation. A subsequent regioselective iodoetherification led to the formation of original [3.3.3] propellane structures. Substitution of the iodine atom by various nucleophiles afforded highly functionnalized structures including triazolomethyl derivatives.
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Affiliation(s)
- Youssef Nassar
- Université de Lyon; CNRS; UCBL; UMR 5246 - Institut de Chimie et de Biochimie Moléculaires et Supramoléculaires, 43, Boulevard du 11 Novembre 1918-69622, Villeurbanne, France.
| | - Olivier Piva
- Université de Lyon; CNRS; UCBL; UMR 5246 - Institut de Chimie et de Biochimie Moléculaires et Supramoléculaires, 43, Boulevard du 11 Novembre 1918-69622, Villeurbanne, France.
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18
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Wang XF, Cao WB, Li HY, Xu XP, Ji SJ. Cascade Reaction of Tryptamine-Derived Isocyanides with Nitrile Oxides: Construction of Oxazine Fused-Spiroindoline Derivatives. J Org Chem 2021; 86:12597-12606. [PMID: 34463508 DOI: 10.1021/acs.joc.1c01054] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A one-step cascade reaction of tryptamine-derived isocyanides with in situ generated nitrile oxides for the synthesis of fused spiroindolines was described. The desired products could be efficiently synthesized in moderate to good yields (42-87%). The protocol features mild conditions, wide substrate scope, and high efficiency.
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Affiliation(s)
- Xiao-Feng Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, P. R. China
| | - Wen-Bin Cao
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, P. R. China
| | - Hai-Yan Li
- Analysis and Testing Center, Soochow University, Suzhou 215123, China
| | - Xiao-Ping Xu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, P. R. China
| | - Shun-Jun Ji
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, P. R. China
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19
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Alavi S, Lin JB, Grover HK. Copper-Catalyzed Annulation of Indolyl α-Diazocarbonyl Compounds Leads to Structurally Rearranged Carbazoles. Org Lett 2021; 23:5559-5564. [PMID: 34197126 DOI: 10.1021/acs.orglett.1c01965] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Indolyl α-diazocarbonyl compounds have proven to be effective starting materials for the construction of various 2,3-ring fused indole frameworks. Activation of the diazo functional group under metal catalysis generates a spiro-cyclic indolenine-type intermediate which rearranges to provide two distinct carbazoles upon oxidation. The current study investigates the effects of the catalyst as well as the substituents on the migratory group involved in controlling the selectivity of the rearrangement.
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Affiliation(s)
- Sima Alavi
- Department of Chemistry, Memorial University of Newfoundland, St. John's, Newfoundland A1B 3X7, Canada
| | - Jian-Bin Lin
- C-CART, CREAIT Network, Memorial University of Newfoundland, St. John's, Newfoundland A1B 3X7, Canada
| | - Huck K Grover
- Department of Chemistry, Memorial University of Newfoundland, St. John's, Newfoundland A1B 3X7, Canada
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20
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Xie YY, Wang YP, Zhao XJ, Wang AF, Chen ZM, Tu YQ. Oxyallyl cation promoted dearomative semipinacol rearrangement: a facile stereodivergent synthesis of spiro-indolines with contiguous quaternary centers. Chem Commun (Camb) 2021; 57:6632-6635. [PMID: 34124740 DOI: 10.1039/d1cc02033a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A novel oxyallyl cation promoted semipinacol rearrangement of indole-type allylic alcohols was disclosed for the stereodivergent synthesis of spiro-indolines. A variety of spiro-indolines were obtained with moderate to good yields. Three contiguous stereocenters, two of which are vicinal quaternary centers, were effectively formed with good diastereoselectivity. It is worth noting that two diastereoisomers of rearranged products can be readily achieved by easily regulating the reaction conditions. This method may provide an applicable approach for the synthesis of natural indole alkaloids.
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Affiliation(s)
- Yu-Yang Xie
- School of Chemistry and Chemical Engineering, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China.
| | - Yun-Peng Wang
- School of Chemistry and Chemical Engineering, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China.
| | - Xiao-Jing Zhao
- School of Chemistry and Chemical Engineering, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China.
| | - Ai-Fang Wang
- School of Chemistry and Chemical Engineering, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China.
| | - Zhi-Min Chen
- School of Chemistry and Chemical Engineering, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China.
| | - Yong-Qiang Tu
- School of Chemistry and Chemical Engineering, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China. and State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China.
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21
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Fadeeva AA, Ioffe SL, Tabolin AA. Dehydration of isoxazoline N-oxides under electrophilic conditions – An alternative approach toward 3-haloisoxazoles. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153106] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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22
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Abstract
Natural products are the most effective source of potential drug leads. The total
synthesis of bioactive natural products plays a crucial role in confirming the hypothetical
complex structure of natural products in the laboratory. The total synthesis of rare bioactive
natural products is one of the great challenges for the organic synthetic community due to
their complex structures, biochemical specificity, and difficult stereochemistry. Subsequently,
the total synthesis is a long process in several cases, and it requires a substantial amount of
time. Microwave irradiation has emerged as a greener tool in organic methodologies to reduce
reaction time from days and hours to minutes and seconds. Moreover, this non-classical
methodology increases product yields and purities, improves reproducibility, modifications of
selectivity, simplification of work-up methods, and reduces unwanted side reactions. Such
beneficial qualities have stimulated this review to cover the application of microwave irradiation in the field of the
total synthesis of bioactive natural products for the first time during the last decade. An overview of the use of microwave
irradiation, natural sources, structures, and biological activities of secondary metabolites is presented elegantly,
focusing on the involvement of at least one or more steps by microwave irradiation as a green technique.
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Affiliation(s)
- Sasadhar Majhi
- Department of Chemistry (UG & PG Department), Triveni Devi Bhalotia College, Raniganj, Kazi Nazrul University, West Bengal- 713347, India
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23
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Mu X, Li Y, Zheng N, Long J, Chen S, Liu B, Zhao C, Yang Z. Stereoselective Synthesis of Cyclohepta[
b
]indoles by Visible‐Light‐Induced [2+2]‐Cycloaddition/retro‐Mannich‐type Reactions. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202101104] [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]
Affiliation(s)
- Xin‐Peng Mu
- State Key Laboratory of Chemical Oncogenomics and Laboratory of Chemical Genomics School of Chemical Biology and Biotechnology Peking University Shenzhen Graduate School Shenzhen 518055 P. R. China
| | - Yuan‐He Li
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education and Beijing National Laboratory for Molecular Science (BNLMS) Peking-Tsinghua Center for Life Sciences Peking University Beijing 100871 P. R. China
| | - Nan Zheng
- State Key Laboratory of Chemical Oncogenomics and Laboratory of Chemical Genomics School of Chemical Biology and Biotechnology Peking University Shenzhen Graduate School Shenzhen 518055 P. R. China
| | - Jian‐Yu Long
- State Key Laboratory of Chemical Oncogenomics and Laboratory of Chemical Genomics School of Chemical Biology and Biotechnology Peking University Shenzhen Graduate School Shenzhen 518055 P. R. China
| | - Si‐Jia Chen
- State Key Laboratory of Chemical Oncogenomics and Laboratory of Chemical Genomics School of Chemical Biology and Biotechnology Peking University Shenzhen Graduate School Shenzhen 518055 P. R. China
| | - Bing‐Yan Liu
- State Key Laboratory of Chemical Oncogenomics and Laboratory of Chemical Genomics School of Chemical Biology and Biotechnology Peking University Shenzhen Graduate School Shenzhen 518055 P. R. China
| | - Chun‐Bo Zhao
- State Key Laboratory of Chemical Oncogenomics and Laboratory of Chemical Genomics School of Chemical Biology and Biotechnology Peking University Shenzhen Graduate School Shenzhen 518055 P. R. China
| | - Zhen Yang
- State Key Laboratory of Chemical Oncogenomics and Laboratory of Chemical Genomics School of Chemical Biology and Biotechnology Peking University Shenzhen Graduate School Shenzhen 518055 P. R. China
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education and Beijing National Laboratory for Molecular Science (BNLMS) Peking-Tsinghua Center for Life Sciences Peking University Beijing 100871 P. R. China
- Shenzhen Bay Laboratory Shenzhen 518055 P. R. China
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24
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Mu XP, Li YH, Zheng N, Long JY, Chen SJ, Liu BY, Zhao CB, Yang Z. Stereoselective Synthesis of Cyclohepta[b]indoles by Visible-Light-Induced [2+2]-Cycloaddition/retro-Mannich-type Reactions. Angew Chem Int Ed Engl 2021; 60:11211-11216. [PMID: 33683807 DOI: 10.1002/anie.202101104] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Revised: 02/27/2021] [Indexed: 12/12/2022]
Abstract
A novel method for the concise synthesis of cyclohepta[b]indoles in high yields was developed. The method involves a visible-light-induced, photocatalyzed [2+2]-cycloaddition/ retro-Mannich-type reaction of enaminones. Experimental and computational studies suggested that the reaction is a photoredox process initiated by single-electron oxidation of an enaminone moiety, which undergoes subsequent cyclobutane formation and rapidly fragmentation in a radical-cation state to form cyclohepta[b]indoles.
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Affiliation(s)
- Xin-Peng Mu
- State Key Laboratory of Chemical Oncogenomics and Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, 518055, P. R. China
| | - Yuan-He Li
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education and Beijing National Laboratory for Molecular Science (BNLMS), Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, 100871, P. R. China
| | - Nan Zheng
- State Key Laboratory of Chemical Oncogenomics and Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, 518055, P. R. China
| | - Jian-Yu Long
- State Key Laboratory of Chemical Oncogenomics and Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, 518055, P. R. China
| | - Si-Jia Chen
- State Key Laboratory of Chemical Oncogenomics and Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, 518055, P. R. China
| | - Bing-Yan Liu
- State Key Laboratory of Chemical Oncogenomics and Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, 518055, P. R. China
| | - Chun-Bo Zhao
- State Key Laboratory of Chemical Oncogenomics and Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, 518055, P. R. China
| | - Zhen Yang
- State Key Laboratory of Chemical Oncogenomics and Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, 518055, P. R. China.,Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education and Beijing National Laboratory for Molecular Science (BNLMS), Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, 100871, P. R. China.,Shenzhen Bay Laboratory, Shenzhen, 518055, P. R. China
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25
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Recent advances in the total synthesis of natural products bearing the contiguous all-carbon quaternary stereocenters. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153029] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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26
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Chen G, Liu PY, Zou H, Hu J, Fang X, Xu D, He YP, Wei H, Xie W. Au(I)-Catalyzed Domino Cyclization of 1,6-Diynes Incorporated with Indole. Org Lett 2021; 23:2279-2284. [PMID: 33667106 DOI: 10.1021/acs.orglett.1c00411] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We disclose herein a Au(I)-catalyzed domino cyclization of 1,6-diynes incorporated with indole. This protocol enabled the diastereoselective buildup of indole-fused azabicyclo[3.3.1]nonanes from linear precursors. Density functional theory calculations showed that the reaction proceeded via an unprecedented cascade dearomatization/rearomatization/dearomatization process. Independent gradient model analysis revealed that a noncovalent attractive interaction between the distal alkyne and the Au/proximal complex was responsible for the chemoselectivity of the first spirocyclization step.
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Affiliation(s)
- Guzhou Chen
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling 712100, Shaanxi, China
| | - Peng-Yu Liu
- Key Laboratory of Petrochemical Catalytic Science and Technology, Liaoning Shihua University, Dandong Road West 1, Fushun 113001, China
| | - Huanhuan Zou
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling 712100, Shaanxi, China
| | - Jiadong Hu
- Yangling Vocational & Technical College, Yangling District, Xianyang, Shaanxi, China
| | - Xiaowu Fang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling 712100, Shaanxi, China
| | - Dongyang Xu
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling 712100, Shaanxi, China
| | - Yu-Peng He
- Key Laboratory of Petrochemical Catalytic Science and Technology, Liaoning Shihua University, Dandong Road West 1, Fushun 113001, China
| | - Hongbo Wei
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling 712100, Shaanxi, China
| | - Weiqing Xie
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling 712100, Shaanxi, China.,Key Laboratory of Botanical Pesticide R&D in Shaanxi Province, Yangling, Shaanxi 712100, China
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27
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Liu L, He T, Liu YP, Cao JX, Cheng GG. 4,21-Secovincanol, a Novel Immunosuppressive Monoterpenoid Indole Alkaloid from Kopsia Hainanensis. Chem Biodivers 2021; 18:e2100084. [PMID: 33682992 DOI: 10.1002/cbdv.202100084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Accepted: 03/05/2021] [Indexed: 11/10/2022]
Abstract
4,21-Secovincanol (1), a novel C-21/N-4 cleavage monoterpenoid indole alkaloid, along with four analogs (2-5), were obtained from the aerial parts of Kopsia hainanensis. Structurally, compound 1 might be a derivative of epivincanol (2) via C-21/N-4 cleavage. Their structures were confirmed by means of comprehensive spectroscopic data analysis and comparison with the reported data. All isolates significantly inhibited Con A-stimulated mice splenocytes proliferation at 10-40 μM in a dose-dependent manner in vitro. Especially, compound 3 exhibited potent activities comparable to positive control (Dexamethasone, DXM).
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Affiliation(s)
- Lu Liu
- Yunnan Institute of Food Safety, Kunming University of Science and Technology, Kunming, 650500, P. R. China.,Yunnan Key Laboratory of Southern Medicinal Resource, Yunnan University of Chinese Medicine, Kunming, 650500, P. R. China
| | - Ting He
- Yunnan Institute of Food Safety, Kunming University of Science and Technology, Kunming, 650500, P. R. China
| | - Ya-Ping Liu
- Yunnan Institute of Food Safety, Kunming University of Science and Technology, Kunming, 650500, P. R. China
| | - Jian-Xin Cao
- Yunnan Institute of Food Safety, Kunming University of Science and Technology, Kunming, 650500, P. R. China
| | - Gui-Guang Cheng
- Yunnan Institute of Food Safety, Kunming University of Science and Technology, Kunming, 650500, P. R. China
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28
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Hu XD, Chen ZH, Zhao J, Sun RZ, Zhang H, Qi X, Liu WB. Enantioselective Synthesis of α-All-Carbon Quaternary Center-Containing Carbazolones via Amino-palladation/Desymmetrizing Nitrile Addition Cascade. J Am Chem Soc 2021; 143:3734-3740. [DOI: 10.1021/jacs.1c00840] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Xu-Dong Hu
- Sauvage Center for Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education), and College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, Hubei, China
| | - Zi-Hao Chen
- Sauvage Center for Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education), and College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, Hubei, China
| | - Jing Zhao
- Sauvage Center for Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education), and College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, Hubei, China
| | - Rui-Ze Sun
- Sauvage Center for Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education), and College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, Hubei, China
| | - Hui Zhang
- Sauvage Center for Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education), and College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, Hubei, China
| | - Xiaotian Qi
- Sauvage Center for Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education), and College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, Hubei, China
| | - Wen-Bo Liu
- Sauvage Center for Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education), and College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, Hubei, China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
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29
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Yanagawa M, Harada S, Hirose S, Nemoto T. Rapid Synthesis of Functionalized Hydrocarbazolones
via
Indole C2−H Activation Using Enone Functionality as a Directing Group/Electrophilic Species. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100098] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Mai Yanagawa
- Graduate School of Pharmaceutical Sciences Chiba University 1-8-1, Inohana, Chuo-ku Chiba 260-8675 Japan
| | - Shingo Harada
- Graduate School of Pharmaceutical Sciences Chiba University 1-8-1, Inohana, Chuo-ku Chiba 260-8675 Japan
| | - Shumpei Hirose
- Graduate School of Pharmaceutical Sciences Chiba University 1-8-1, Inohana, Chuo-ku Chiba 260-8675 Japan
| | - Tetsuhiro Nemoto
- Graduate School of Pharmaceutical Sciences Chiba University 1-8-1, Inohana, Chuo-ku Chiba 260-8675 Japan
- Molecular Chirality Research Center Chiba University 1-33, Yayoi-cho, Inage-ku Chiba 263-8522 Japan
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30
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Li C, Ragab SS, Liu G, Tang W. Enantioselective formation of quaternary carbon stereocenters in natural product synthesis: a recent update. Nat Prod Rep 2021; 37:276-292. [PMID: 31515549 DOI: 10.1039/c9np00039a] [Citation(s) in RCA: 108] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Covering: 2013-2018 Natural products bearing quaternary carbon stereocenters have attracted tremendous interest from the synthetic community due to their diverse biological activities and fascinating molecular architectures. However, the construction of these molecules in an enantioselective fashion remains a long-standing challenge because of the lack of efficient asymmetric catalytic methods for installing these motifs. The rapid progress in the development of new-generation efficient chiral catalysts has opened the door for several asymmetric reactions, such as Michael addition, dearomative cyclization, polyene cyclization, α-arylation, cycloaddition, allylation, for the construction of quaternary carbon stereocenters in a highly enantioselective fashion. These asymmetric catalytic methods have greatly facilitated the synthesis of complex natural products with improved output and overall efficiency. In this concise review, we highlight the progress in the last six years in complex natural product synthesis, in which at least one quaternary carbon stereocenter has been constructed via asymmetric catalytic technologies, with particular emphasis on the analysis of the stereochemical model of each enantioselective transformation.
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Affiliation(s)
- Chengxi Li
- State Key Laboratory of Bio-Organic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Ling Ling Road, Shanghai 200032, China.
| | - Sherif Shaban Ragab
- State Key Laboratory of Bio-Organic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Ling Ling Road, Shanghai 200032, China. and Photochemistry Department, Chemical Industries Research Division, National Research Centre, Dokki, 12622, Giza, Egypt
| | - Guodu Liu
- State Key Laboratory of Bio-Organic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Ling Ling Road, Shanghai 200032, China. and Department of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, China.
| | - Wenjun Tang
- State Key Laboratory of Bio-Organic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Ling Ling Road, Shanghai 200032, China.
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31
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Hu Y, Wang XJ, Dong WS, Bi YF, Lu ZJ, Cao WL, Zhang JG, Zhang Q, Chen D. Engaging DBFO as a C1N1 “two-atom synthon” in [3 + 2] cycloaddition reaction: synthesis of the energetic material 5-azidotetrazolate 1 N-oxide. Org Chem Front 2021. [DOI: 10.1039/d1qo00123j] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Employing 1,1-dibromoformaloxime as a novel C1N1 “two-atom synthon” for the synthesis of tetrazole-based energetic materials via an intramolecular [3 + 2] annulation in aqueous solution.
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Affiliation(s)
- Yong Hu
- State Key Laboratory of Explosion Science and Technology
- Beijing Institute of Technology
- Beijing 100081
- P. R. China
| | - Xiao-Jun Wang
- State Key Laboratory of Explosion Science and Technology
- Beijing Institute of Technology
- Beijing 100081
- P. R. China
| | - Wen-Shuai Dong
- State Key Laboratory of Explosion Science and Technology
- Beijing Institute of Technology
- Beijing 100081
- P. R. China
| | - Yu-Fan Bi
- State Key Laboratory of Explosion Science and Technology
- Beijing Institute of Technology
- Beijing 100081
- P. R. China
| | - Zu-Jia Lu
- State Key Laboratory of Explosion Science and Technology
- Beijing Institute of Technology
- Beijing 100081
- P. R. China
| | - Wen-Li Cao
- State Key Laboratory of Explosion Science and Technology
- Beijing Institute of Technology
- Beijing 100081
- P. R. China
| | - Jian-Guo Zhang
- State Key Laboratory of Explosion Science and Technology
- Beijing Institute of Technology
- Beijing 100081
- P. R. China
| | - Qi Zhang
- Institute of Chemical Materials
- China Academy of Engineering Physics
- Mianyang
- China
| | - Dong Chen
- Institute of Chemical Materials
- China Academy of Engineering Physics
- Mianyang
- China
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32
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Qin B, Wang Y, Wang X, Jia Y. Total synthesis of kopsine, fruticosine, and structurally related polycyclic caged Kopsia indole alkaloids. Org Chem Front 2021. [DOI: 10.1039/d0qo01165g] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Kopsine, fruticosine and related caged and polycyclic Kopsia indole alkaloids have been attractive synthetic targets since 1983.
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Affiliation(s)
- Bo Qin
- State Key Laboratory of Natural and Biomimetic Drugs
- School of Pharmaceutical Sciences
- Peking University
- Beijing 100191
- China
| | - Yuan Wang
- State Key Laboratory of Natural and Biomimetic Drugs
- School of Pharmaceutical Sciences
- Peking University
- Beijing 100191
- China
| | - Xin Wang
- State Key Laboratory of Natural and Biomimetic Drugs
- School of Pharmaceutical Sciences
- Peking University
- Beijing 100191
- China
| | - Yanxing Jia
- State Key Laboratory of Natural and Biomimetic Drugs
- School of Pharmaceutical Sciences
- Peking University
- Beijing 100191
- China
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33
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Mohammadkhani L, Heravi MM. Applications of Transition-Metal-Catalyzed Asymmetric Allylic Substitution in Total Synthesis of Natural Products: An Update. CHEM REC 2020; 21:29-68. [PMID: 33206466 DOI: 10.1002/tcr.202000086] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 10/21/2020] [Accepted: 10/22/2020] [Indexed: 01/14/2023]
Abstract
Metal-catalyzed asymmetric allylic substitution (AAS) reaction is one of the most synthetically useful reactions catalyzed by metal complexes for the formation of carbon-carbon and carbon-heteroatom bonds. It comprises the substitution of allylic substrates with a wide range of nucleophiles or SN 2'-type allylic substitution, which results in the formation of the above-mentioned bonds with high levels of enantioselective induction. AAS reaction tolerates a broad range of functional groups, thus has been successfully applied in the asymmetric synthesis of a wide range of optically pure compounds. This reaction has been extensively used in the total synthesis of several complex molecules, especially natural products. In this review, we try to highlight the applications of metal (Pd, Ir, Mo, or Cu)-catalyzed AAS reaction in the total synthesis of the biologically active natural products, as a key step, updating the subject from 2003 till date.
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Affiliation(s)
- Leyla Mohammadkhani
- Department of Chemistry, School of Sciences, Alzahra University Vanak, Tehran, Iran
| | - Majid M Heravi
- Department of Chemistry, School of Sciences, Alzahra University Vanak, Tehran, Iran
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34
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Affiliation(s)
- Karre Nagaraju
- State Key Laboratory of Bioorganic & 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 Lu Shanghai 200032 China
| | - Dongshun Ni
- State Key Laboratory of Bioorganic & 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 Lu Shanghai 200032 China
| | - Dawei Ma
- State Key Laboratory of Bioorganic & 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 Lu Shanghai 200032 China
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35
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Nagaraju K, Ni D, Ma D. Total Synthesis of Kopsinitarine E. Angew Chem Int Ed Engl 2020; 59:22039-22042. [DOI: 10.1002/anie.202011093] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Indexed: 11/11/2022]
Affiliation(s)
- Karre Nagaraju
- State Key Laboratory of Bioorganic & 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 Lu Shanghai 200032 China
| | - Dongshun Ni
- State Key Laboratory of Bioorganic & 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 Lu Shanghai 200032 China
| | - Dawei Ma
- State Key Laboratory of Bioorganic & 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 Lu Shanghai 200032 China
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36
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Wang S, Si R, Zhuang Q, Guo X, Ke T, Zhang X, Zhang F, Tu Y. Collective Total Synthesis of Aspidofractinine Alkaloids through the Development of a Bischler–Napieralski/Semipinacol Rearrangement Reaction. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202009238] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Shuang‐Hu Wang
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry Lanzhou University Lanzhou 730000 P. R. China
| | - Rui‐Qi Si
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry Lanzhou University Lanzhou 730000 P. R. China
| | - Qing‐Bo Zhuang
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry Lanzhou University Lanzhou 730000 P. R. China
| | - Xiang Guo
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry Lanzhou University Lanzhou 730000 P. R. China
| | - Tian Ke
- School of Chemistry and Chemical Engineering Frontiers Science Center for Transformative Molecules Shanghai Jiao Tong University Shanghai 200240 P. R. China
| | - Xiao‐Ming Zhang
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry Lanzhou University Lanzhou 730000 P. R. China
| | - Fu‐Min Zhang
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry Lanzhou University Lanzhou 730000 P. R. China
| | - Yong‐Qiang Tu
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry Lanzhou University Lanzhou 730000 P. R. China
- School of Chemistry and Chemical Engineering Frontiers Science Center for Transformative Molecules Shanghai Jiao Tong University Shanghai 200240 P. R. China
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37
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Wang S, Si R, Zhuang Q, Guo X, Ke T, Zhang X, Zhang F, Tu Y. Collective Total Synthesis of Aspidofractinine Alkaloids through the Development of a Bischler–Napieralski/Semipinacol Rearrangement Reaction. Angew Chem Int Ed Engl 2020; 59:21954-21958. [DOI: 10.1002/anie.202009238] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Indexed: 01/01/2023]
Affiliation(s)
- Shuang‐Hu Wang
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry Lanzhou University Lanzhou 730000 P. R. China
| | - Rui‐Qi Si
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry Lanzhou University Lanzhou 730000 P. R. China
| | - Qing‐Bo Zhuang
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry Lanzhou University Lanzhou 730000 P. R. China
| | - Xiang Guo
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry Lanzhou University Lanzhou 730000 P. R. China
| | - Tian Ke
- School of Chemistry and Chemical Engineering Frontiers Science Center for Transformative Molecules Shanghai Jiao Tong University Shanghai 200240 P. R. China
| | - Xiao‐Ming Zhang
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry Lanzhou University Lanzhou 730000 P. R. China
| | - Fu‐Min Zhang
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry Lanzhou University Lanzhou 730000 P. R. China
| | - Yong‐Qiang Tu
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry Lanzhou University Lanzhou 730000 P. R. China
- School of Chemistry and Chemical Engineering Frontiers Science Center for Transformative Molecules Shanghai Jiao Tong University Shanghai 200240 P. R. China
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38
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Sokolova OO, Bower JF. Selective Carbon–Carbon Bond Cleavage of Cyclopropylamine Derivatives. Chem Rev 2020; 121:80-109. [DOI: 10.1021/acs.chemrev.0c00166] [Citation(s) in RCA: 59] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Olga O. Sokolova
- School of Chemistry, University of Bristol, Bristol BS8 1TS, United Kingdom
| | - John F. Bower
- School of Chemistry, University of Bristol, Bristol BS8 1TS, United Kingdom
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7ZD, United Kingdom
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39
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Jia X, Lei H, Han F, Zhang T, Chen Y, Xu Z, Nakliang P, Choi S, Guo Y, Ye T. Asymmetric Total Syntheses of Kopsane Alkaloids via a PtCl 2 -Catalyzed Intramolecular [3+2] Cycloaddition. Angew Chem Int Ed Engl 2020; 59:12832-12836. [PMID: 32329945 DOI: 10.1002/anie.202005048] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Indexed: 12/19/2022]
Abstract
A concise and asymmetric total synthesis of five kopsane alkaloids that share a unique heptacyclic caged ring system was accomplished. The key transformation in the sequence involved a remarkable PtCl2 -catalyzed intramolecular [3+2] cycloaddition, which allowed for the rapid assembly of pentacyclic carbon skeletons bearing 2,3-quaternary functionalized indoline. Expeditious construction of diverse indoline scaffolds with excellent control of diastereoselectivity demonstrated the broad scope and versatility of this key transformation.
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Affiliation(s)
- Xuelei Jia
- State Key Laboratory of Chemical Oncogenomics, Peking University Shenzhen Graduate School, Tsinghua Shenzhen International Graduate School, Xili, Nanshan District, Shenzhen, 518055, China
| | - Honghui Lei
- State Key Laboratory of Chemical Oncogenomics, Peking University Shenzhen Graduate School, Tsinghua Shenzhen International Graduate School, Xili, Nanshan District, Shenzhen, 518055, China
| | - Feipeng Han
- State Key Laboratory of Chemical Oncogenomics, Peking University Shenzhen Graduate School, Tsinghua Shenzhen International Graduate School, Xili, Nanshan District, Shenzhen, 518055, China
| | - Tao Zhang
- State Key Laboratory of Chemical Oncogenomics, Peking University Shenzhen Graduate School, Tsinghua Shenzhen International Graduate School, Xili, Nanshan District, Shenzhen, 518055, China
| | - Ying Chen
- State Key Laboratory of Chemical Oncogenomics, Peking University Shenzhen Graduate School, Tsinghua Shenzhen International Graduate School, Xili, Nanshan District, Shenzhen, 518055, China
| | - Zhengshuang Xu
- State Key Laboratory of Chemical Oncogenomics, Peking University Shenzhen Graduate School, Tsinghua Shenzhen International Graduate School, Xili, Nanshan District, Shenzhen, 518055, China
| | - Pratanphorn Nakliang
- College of Pharmacy and Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul, 03760, Korea
| | - Sun Choi
- College of Pharmacy and Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul, 03760, Korea
| | - Yian Guo
- State Key Laboratory of Chemical Oncogenomics, Peking University Shenzhen Graduate School, Tsinghua Shenzhen International Graduate School, Xili, Nanshan District, Shenzhen, 518055, China
| | - Tao Ye
- State Key Laboratory of Chemical Oncogenomics, Peking University Shenzhen Graduate School, Tsinghua Shenzhen International Graduate School, Xili, Nanshan District, Shenzhen, 518055, China
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40
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Jia X, Lei H, Han F, Zhang T, Chen Y, Xu Z, Nakliang P, Choi S, Guo Y, Ye T. Asymmetric Total Syntheses of Kopsane Alkaloids via a PtCl
2
‐Catalyzed Intramolecular [3+2] Cycloaddition. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202005048] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Xuelei Jia
- State Key Laboratory of Chemical Oncogenomics Peking University Shenzhen Graduate School Tsinghua Shenzhen International Graduate School Xili, Nanshan District Shenzhen 518055 China
| | - Honghui Lei
- State Key Laboratory of Chemical Oncogenomics Peking University Shenzhen Graduate School Tsinghua Shenzhen International Graduate School Xili, Nanshan District Shenzhen 518055 China
| | - Feipeng Han
- State Key Laboratory of Chemical Oncogenomics Peking University Shenzhen Graduate School Tsinghua Shenzhen International Graduate School Xili, Nanshan District Shenzhen 518055 China
| | - Tao Zhang
- State Key Laboratory of Chemical Oncogenomics Peking University Shenzhen Graduate School Tsinghua Shenzhen International Graduate School Xili, Nanshan District Shenzhen 518055 China
| | - Ying Chen
- State Key Laboratory of Chemical Oncogenomics Peking University Shenzhen Graduate School Tsinghua Shenzhen International Graduate School Xili, Nanshan District Shenzhen 518055 China
| | - Zhengshuang Xu
- State Key Laboratory of Chemical Oncogenomics Peking University Shenzhen Graduate School Tsinghua Shenzhen International Graduate School Xili, Nanshan District Shenzhen 518055 China
| | - Pratanphorn Nakliang
- College of Pharmacy and Graduate School of Pharmaceutical Sciences Ewha Womans University Seoul 03760 Korea
| | - Sun Choi
- College of Pharmacy and Graduate School of Pharmaceutical Sciences Ewha Womans University Seoul 03760 Korea
| | - Yian Guo
- State Key Laboratory of Chemical Oncogenomics Peking University Shenzhen Graduate School Tsinghua Shenzhen International Graduate School Xili, Nanshan District Shenzhen 518055 China
| | - Tao Ye
- State Key Laboratory of Chemical Oncogenomics Peking University Shenzhen Graduate School Tsinghua Shenzhen International Graduate School Xili, Nanshan District Shenzhen 518055 China
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41
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Usman M, Hu X, Liu W. Recent Advances and Perspectives in the Synthesis and Applications of Tetrahydrocarbazol‐4‐ones†. CHINESE J CHEM 2020. [DOI: 10.1002/cjoc.202000029] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Muhammad Usman
- Sauvage Center for Molecular Sciences; Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education); College of Chemistry and Molecular Sciences, Wuhan University Wuhan Hubei 430072 China
| | - Xu‐Dong Hu
- Sauvage Center for Molecular Sciences; Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education); College of Chemistry and Molecular Sciences, Wuhan University Wuhan Hubei 430072 China
| | - Wen‐Bo Liu
- Sauvage Center for Molecular Sciences; Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education); College of Chemistry and Molecular Sciences, Wuhan University Wuhan Hubei 430072 China
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42
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Xie TZ, Zhao YL, He JJ, Zhao LX, Wei X, Liu YP, Luo XD. Monoterpenoid indole alkaloids from the stems of Kopsia officinalis. Fitoterapia 2020; 143:104547. [PMID: 32173419 DOI: 10.1016/j.fitote.2020.104547] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Revised: 03/08/2020] [Accepted: 03/10/2020] [Indexed: 10/24/2022]
Abstract
Five new indole alkaloids, kopsiofficines H-L (1-5), along with fourteen known alkaloids (6-19) were isolated from the stems of Kopsia officinalis. Their structures were elucidated by extensive NMR, mass spectroscopic analyses and comparison to the reported data. All the isolated compounds were evaluated their anti-inflammatory activities by inhibiting IL-1β, PGE2 and TNF-α secretion in lipopolysaccharide (LPS)-activated RAW264.7 cells. Compounds 2, 3, 6, 7, 11, 12, 15, and 17 show significant anti-inflammatory activities. These results demonstrate pharmacodynamic substance basis of these folkloric claims.
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Affiliation(s)
- Tian-Zhen Xie
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming 650091, PR China; State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, PR China
| | - Yun-Li Zhao
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming 650091, PR China; State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, PR China
| | - Jun-Jie He
- Lanzhou University of Technolog, Lanzhou 730050, PR China
| | - Li-Xin Zhao
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming 650091, PR China
| | - Xin Wei
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, PR China
| | - Ya-Ping Liu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, PR China; Yunnan Institute of Food Safety, Kunming University of Science and Technology, Kunming 650500, PR China.
| | - Xiao-Dong Luo
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming 650091, PR China; State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, PR China.
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43
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Schlatzer T, Schröder H, Trobe M, Lembacher‐Fadum C, Stangl S, Schlögl C, Weber H, Breinbauer R. Pd/BIPHEPHOS is an Efficient Catalyst for the Pd-Catalyzed S-Allylation of Thiols with High n-Selectivity. Adv Synth Catal 2020; 362:331-336. [PMID: 32063821 PMCID: PMC7004212 DOI: 10.1002/adsc.201901250] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Revised: 10/22/2019] [Indexed: 11/06/2022]
Abstract
The Pd-catalyzed S-allylation of thiols with stable allylcarbonate and allylacetate reagents offers several advantages over established reactions for the formation of thioethers. We could demonstrate that Pd/BIPHEPHOS is a catalyst system which allows the transition metal-catalyzed S-allylation of thiols with excellent n-regioselectivity. Mechanistic studies showed that this reaction is reversible under the applied reaction conditions. The excellent functional group tolerance of this transformation was demonstrated with a broad variety of thiol nucleophiles (18 examples) and allyl substrates (9 examples), and could even be applied for the late-stage diversification of cephalosporins, which might find application in the synthesis of new antibiotics.
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Affiliation(s)
- Thomas Schlatzer
- Institute of Organic ChemistryGraz University of TechnologyStremayrgasse 9A-8010GrazAustria
| | - Hilmar Schröder
- Institute of Organic ChemistryGraz University of TechnologyStremayrgasse 9A-8010GrazAustria
| | - Melanie Trobe
- Institute of Organic ChemistryGraz University of TechnologyStremayrgasse 9A-8010GrazAustria
| | | | - Simon Stangl
- Institute of Organic ChemistryGraz University of TechnologyStremayrgasse 9A-8010GrazAustria
| | - Christoph Schlögl
- Institute of Organic ChemistryGraz University of TechnologyStremayrgasse 9A-8010GrazAustria
| | - Hansjörg Weber
- Institute of Organic ChemistryGraz University of TechnologyStremayrgasse 9A-8010GrazAustria
| | - Rolf Breinbauer
- Institute of Organic ChemistryGraz University of TechnologyStremayrgasse 9A-8010GrazAustria
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44
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Huang H, Li QZ, Liu YQ, Leng HJ, Xiang P, Dai QS, He XH, Huang W, Li JL. Dearomative [4 + 2] annulations between 3-nitroindoles and enals through oxidative N-heterocyclic carbene catalysis. Org Chem Front 2020. [DOI: 10.1039/d0qo00868k] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A novel intermolecular dearomative [4 + 2] annulation of 3-nitroindoles and enals under oxidative N-heterocyclic carbene catalysis has been developed. This protocol was also suitable for the oxidative cyclisation of 2-nitrobenzothiophenes with enals.
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Affiliation(s)
- Hua Huang
- State Key Laboratory of Southwestern Chinese Medicine Resources
- School of Pharmacy
- Chengdu University of Traditional Chinese Medicine
- Chengdu 611137
- China
| | - Qing-Zhu Li
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province
- Sichuan Industrial Institute of Antibiotics
- Chengdu University
- Chengdu 610052
- PR China
| | - Yan-Qing Liu
- State Key Laboratory of Southwestern Chinese Medicine Resources
- School of Pharmacy
- Chengdu University of Traditional Chinese Medicine
- Chengdu 611137
- China
| | - Hai-Jun Leng
- State Key Laboratory of Southwestern Chinese Medicine Resources
- School of Pharmacy
- Chengdu University of Traditional Chinese Medicine
- Chengdu 611137
- China
| | - Peng Xiang
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province
- Sichuan Industrial Institute of Antibiotics
- Chengdu University
- Chengdu 610052
- PR China
| | - Qing-Song Dai
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province
- Sichuan Industrial Institute of Antibiotics
- Chengdu University
- Chengdu 610052
- PR China
| | - Xiang-Hong He
- State Key Laboratory of Southwestern Chinese Medicine Resources
- School of Pharmacy
- Chengdu University of Traditional Chinese Medicine
- Chengdu 611137
- China
| | - Wei Huang
- State Key Laboratory of Southwestern Chinese Medicine Resources
- School of Pharmacy
- Chengdu University of Traditional Chinese Medicine
- Chengdu 611137
- China
| | - Jun-Long Li
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province
- Sichuan Industrial Institute of Antibiotics
- Chengdu University
- Chengdu 610052
- PR China
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45
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Zhao S, Cheng S, Liu H, Zhang J, Liu M, Yuan W, Zhang X. Synthesis of chiral [2,3]-fused indolines through enantioselective dearomatization inverse-electron-demand Diels–Alder reaction/oxidation of indoles with 2-(2-nitrovinyl)-1,4-benzoquinone. Chem Commun (Camb) 2020; 56:4200-4203. [PMID: 32167511 DOI: 10.1039/d0cc00693a] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Enantioselective dearomatization inverse-electron-demand Diels–Alder reaction/oxidation of indoles with 2-(2-nitrovinyl)-1,4-benzoquinone provided various novel enantioenriched [2,3]-fused indolines.
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Affiliation(s)
- Sihan Zhao
- Key Laboratory for Asymmetric Synthesis and Chiraltechnology of Sichuan Province
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Sciences
- Chengdu
- China
| | - Shaobing Cheng
- Key Laboratory for Asymmetric Synthesis and Chiraltechnology of Sichuan Province
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Sciences
- Chengdu
- China
| | - Hui Liu
- Key Laboratory for Asymmetric Synthesis and Chiraltechnology of Sichuan Province
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Sciences
- Chengdu
- China
| | - Jiayan Zhang
- Key Laboratory for Asymmetric Synthesis and Chiraltechnology of Sichuan Province
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Sciences
- Chengdu
- China
| | - Min Liu
- Key Laboratory for Asymmetric Synthesis and Chiraltechnology of Sichuan Province
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Sciences
- Chengdu
- China
| | - Weicheng Yuan
- Key Laboratory for Asymmetric Synthesis and Chiraltechnology of Sichuan Province
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Sciences
- Chengdu
- China
| | - Xiaomei Zhang
- Key Laboratory for Asymmetric Synthesis and Chiraltechnology of Sichuan Province
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Sciences
- Chengdu
- China
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46
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Tanifuji R, Minami A, Oguri H, Oikawa H. Total synthesis of alkaloids using both chemical and biochemical methods. Nat Prod Rep 2020; 37:1098-1121. [DOI: 10.1039/c9np00073a] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A chemoenzymatic approach to synthesize structurally complex natural alkaloids (tetrahydroisoquinoline antibiotics, indole diterpenes, and monoterpene indole alkaloids) has been reviewed.
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Affiliation(s)
- Ryo Tanifuji
- Department of Applied Chemistry
- Graduate School of Engineering
- Tokyo University of Agriculture and Technology
- Koganei
- Japan
| | - Atsushi Minami
- Division of Chemistry
- Graduate School of Science
- Hokkaido University
- Sapporo
- Japan
| | - Hiroki Oguri
- Department of Applied Chemistry
- Graduate School of Engineering
- Tokyo University of Agriculture and Technology
- Koganei
- Japan
| | - Hideaki Oikawa
- Division of Chemistry
- Graduate School of Science
- Hokkaido University
- Sapporo
- Japan
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47
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Masson-Makdissi J, Jang YJ, Prieto L, Taylor MS, Lautens M. Rhodium-Catalyzed Tandem Isomerization–Allylation: From Diallyl Carbonates to α-Quaternary Aldehydes. ACS Catal 2019. [DOI: 10.1021/acscatal.9b04128] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jeanne Masson-Makdissi
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | - Young Jin Jang
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | - Liher Prieto
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
- Department of Organic Chemistry II, University of the Basque Country (UPV/EHU), P.O. Box 644, 48080 Bilbao, Spain
| | - Mark S. Taylor
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | - Mark Lautens
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
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48
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Liu XY, Qin Y. Indole Alkaloid Synthesis Facilitated by Photoredox Catalytic Radical Cascade Reactions. Acc Chem Res 2019; 52:1877-1891. [PMID: 31264824 DOI: 10.1021/acs.accounts.9b00246] [Citation(s) in RCA: 123] [Impact Index Per Article: 24.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The monoterpene indole alkaloids, containing over 3000 known members and more than 40 structural types, represent one of the largest natural product families that have proven to be an important drug source. Their complex chemical structures and significant biological activities have rendered these alkaloids attractive targets in the synthetic community for decades. While chemists have developed many synthetic methodologies and tactics toward this end, general strategies allowing divergent access to a large variety of structural types and members of monoterpene indole alkaloids are still limited and highly desirable. Photoredox catalysis has emerged in recent years as a powerful tool to realize chemical transformations via single electron transfer (SET) processes that would otherwise be inaccessible. In particular, when the radical species generated by the visible light photoinduced approach is involved in well-designed cascade reactions, the formation of multiple chemical bonds and the assembly of structurally complex molecules would be secured in a green and economic manner. This protocol might serve to remodel the way of thinking for the preparation of useful pharmaceuticals and complex natural products. Due to a long-standing interest in the synthesis of diverse indole alkaloids, our group previously developed a cyclopropanation strategy ( Qin , Y. Acc. Chem. Res. 2011 , 44 , 447 ) that was versatile to access several intriguing indole alkaloid molecules. With an idea of developing more general synthetic approaches to as many members of various indole alkaloids as possible, we recently disclosed new radical cascade reactions enabled by photoredox catalysis, leading to the collective asymmetric total synthesis of 42 monoterpene indole alkaloids belonging to 7 structural types. Several important discoveries deserve to be highlighted. First, the use of photocatalytic technology allowed us to achieve an unusual reaction pathway that reversed the conventional reactivity between two nucleophilic amine and enamine groups. Second, a crucial nitrogen-centered radical, directly generated from a sulfonamide N-H bond, triggered three types of cascade reactions to deliver indole alkaloid cores with manifold functionalities and controllable diastereoselectivities. Moreover, expansion of this catalytic, scalable, and general methodology permitted the total synthesis of a large collection of indole alkaloids. In this Account, we wish to provide a complete picture of our studies concerning the original synthetic design, method development, and applications in total synthesis. It is anticipated that the visible-light-driven cascade strategy will find further utility in the realm of natural product synthesis.
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Affiliation(s)
- Xiao-Yu Liu
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, 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, 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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49
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Li H, Shen SJ, Zhu CL, Xu H. Direct Intermolecular Anti-Markovnikov Hydroazidation of Unactivated Olefins. J Am Chem Soc 2019; 141:9415-9421. [PMID: 31070901 DOI: 10.1021/jacs.9b04381] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
We herein report a direct intermolecular anti-Markovnikov hydroazidation method for unactivated olefins, which is promoted by a catalytic amount of bench-stable benziodoxole at ambient temperature. This method facilitates previously difficult, direct addition of hydrazoic acid across a wide variety of unactivated olefins in both complex molecules and unfunctionalized commodity chemicals. It conveniently fills a synthetic chemistry gap of existing olefin hydroazidation procedures, and thereby provides a valuable tool for azido-group labeling in organic synthesis and chemical biology studies.
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Affiliation(s)
- Hongze Li
- Department of Chemistry , Georgia State University , 100 Piedmont Avenue SE , Atlanta Georgia 30303 , United States
| | - Shou-Jie Shen
- Department of Chemistry , Georgia State University , 100 Piedmont Avenue SE , Atlanta Georgia 30303 , United States
| | - Cheng-Liang Zhu
- Department of Chemistry , Georgia State University , 100 Piedmont Avenue SE , Atlanta Georgia 30303 , United States
| | - Hao Xu
- Department of Chemistry , Georgia State University , 100 Piedmont Avenue SE , Atlanta Georgia 30303 , United States
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50
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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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