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Chaudhary NK, Taylor WC, Mander LN, Karuso P. Isolation and Structure Elucidation of Additional Alkaloids from the Tropical Rainforest Tree Galbulimima baccata. JOURNAL OF NATURAL PRODUCTS 2021; 84:2525-2535. [PMID: 34491059 DOI: 10.1021/acs.jnatprod.1c00537] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The structures of five new natural products (GB 27-GB 31, 1-5), isolated as minor components from the bark of Galbulimima baccata, have been determined by 2D NMR spectroscopy in combination with DFT calculations. Among the alkaloids, GB 31 (5) belongs to Class I, GB 27 (1) and 28 (2) belong to Class II, and GB 30 (4) belongs to Class III GB alkaloids. GB 31 is the first non-nitrogen-containing GB "alkaloid", being a biosynthetic oxidation product of himbacine, himandravine, or himbeline. GB 29 (3) has an entirely new natural product scaffold but belongs to Class IV (miscellaneous alkaloids). The isolation of a new Galbulimima scaffold has revealed a new pathway in the biosynthesis of the GB alkaloids. The new molecules isolated have shed further light on the biogenetic relationship among these structurally unique and complex groups of alkaloids. We present, for the first time, a unified biogenesis for the GB alkaloids that were first isolated in the 1950s and now number over 40 examples. This work also brings full circle the story of Galbulimima alkaloids. A life-long project of Wal Taylor involving one of his first students (Lew Mander) and one of his last students (Peter Karuso), a story stretching over six decades, has come to a final conclusion.
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Affiliation(s)
- Nirmal K Chaudhary
- Department of Molecular Sciences, Macquarie University, Sydney, NSW 2109, Australia
| | - Walter C Taylor
- School of Chemistry, University of Sydney, Sydney, NSW 2006, Australia
| | - Lewis N Mander
- Research School of Chemistry, Australian National University, Canberra, ACT 0200, Australia
| | - Peter Karuso
- Department of Molecular Sciences, Macquarie University, Sydney, NSW 2109, Australia
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Wu T, Tang W. Construction of Bridged Polycyclic Skeletons via Transition-Metal Catalyzed Carbon-Carbon Bond-Forming Reactions. Chemistry 2021; 27:3944-3956. [PMID: 32918298 DOI: 10.1002/chem.202003863] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 09/10/2020] [Indexed: 12/15/2022]
Abstract
Transition-metal catalysis has become one of most important methods for constructing molecules with diverse architectures. Bridged polycyclic skeletons are often considered one of most challenging structures in organic synthesis. This Minireview summarizes the recent progress on synthesis of bridged polycyclic skeletons by transition-metal-catalyzed carbon-carbon bond-forming reaction. Four main ring-forming strategies including connection via olefin or carbonyl functionality, enolate intermediacy, C-H functionality, and aryl functionality are detailed and some effective methods are discussed with particular emphasis on reaction design and mechanism.
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Affiliation(s)
- Ting Wu
- State Key Laboratory of Bio-Organic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, P. R. China
| | - Wenjun Tang
- State Key Laboratory of Bio-Organic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, P. R. China.,School of Chemistry and Materials Science Hangzhou Institute for, Advanced Study, University of Chinese Academy of Sciences, 1 Sub-lane Xiangshan, Hangzhou, 310024, P. R. China
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Wang B, Perea MA, Sarpong R. Transition Metal-Mediated C-C Single Bond Cleavage: Making the Cut in Total Synthesis. Angew Chem Int Ed Engl 2020; 59:18898-18919. [PMID: 31984640 PMCID: PMC7772057 DOI: 10.1002/anie.201915657] [Citation(s) in RCA: 80] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2019] [Indexed: 12/12/2022]
Abstract
Transition-metal-mediated cleavage of C-C single bonds can enable entirely new retrosynthetic disconnections in the total synthesis of natural products. Given that C-C bond cleavage inherently alters the carbon framework of a compound, and that, under transition-metal catalysis, the generated organometallic or radical intermediate is primed for further complexity-building reactivity, C-C bond-cleavage events have the potential to drastically and rapidly remodel skeletal frameworks. The recent acceleration of the use of transition-metal-mediated cleavage of C-C single bonds in total synthesis can be ascribed to a communal recognition of this fact. In this Review, we highlight ten selected total syntheses from 2014 to 2019 that illustrate how transition-metal-mediated cleavage of C-C single bonds at either the core or the periphery of synthetic intermediates can streamline synthetic efforts.
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Affiliation(s)
| | | | - Richmond Sarpong
- Department of Chemistry, University of California, Berkeley Berkeley, CA 94720 (USA)
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Wang B, Perea MA, Sarpong R. Übergangsmetallvermittelte Spaltung von C‐C‐Einfachbindungen. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201915657] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Brian Wang
- Department of Chemistry University of California, Berkeley Berkeley CA 94720 USA
| | - Melecio A. Perea
- Department of Chemistry University of California, Berkeley Berkeley CA 94720 USA
| | - Richmond Sarpong
- Department of Chemistry University of California, Berkeley Berkeley CA 94720 USA
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Bonjoch J, Diaba F. Radical Reactions in Alkaloid Synthesis: A Perspective from Carbon Radical Precursors. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000391] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Josep Bonjoch
- Laboratori de Química Orgànica Facultat de Farmàcia, IBUB Universitat de Barcelona Av. Joan XXIII s/n 08028 Barcelona Spain
| | - Faiza Diaba
- Laboratori de Química Orgànica Facultat de Farmàcia, IBUB Universitat de Barcelona Av. Joan XXIII s/n 08028 Barcelona Spain
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Arenas I, Ferrali A, Rodríguez-Escrich C, Bravo F, Pericàs MA. cis-4-Alkoxydialkyl- andcis-4-Alkoxydiarylprolinol Organocatalysts: High Throughput Experimentation (HTE)-Based and Design of Experiments (DoE)-Guided Development of a Highly Enantioselectiveaza-Michael Addition of Cyclic Imides to α,β-Unsaturated Aldehyd. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700120] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Ismael Arenas
- Institute of Chemical Research of Catalonia (ICIQ); The Barcelona Institute of Science and Technology; Av. Països Catalans 16 43007 Tarragona Spain
| | - Alessandro Ferrali
- Institute of Chemical Research of Catalonia (ICIQ); The Barcelona Institute of Science and Technology; Av. Països Catalans 16 43007 Tarragona Spain
| | - Carles Rodríguez-Escrich
- Institute of Chemical Research of Catalonia (ICIQ); The Barcelona Institute of Science and Technology; Av. Països Catalans 16 43007 Tarragona Spain
| | - Fernando Bravo
- Institute of Chemical Research of Catalonia (ICIQ); The Barcelona Institute of Science and Technology; Av. Països Catalans 16 43007 Tarragona Spain
| | - Miquel A. Pericàs
- Institute of Chemical Research of Catalonia (ICIQ); The Barcelona Institute of Science and Technology; Av. Països Catalans 16 43007 Tarragona Spain
- Departament de Química Orgànica i Inorgànica; Universitat de Barcelona (UB); 08028 Barcelona Spain
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Younai A, Zeng BS, Meltzer HY, Scheidt KA. Enantioselective Syntheses of Heteroyohimbine Natural Products: A Unified Approach through Cooperative Catalysis. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201502011] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Younai A, Zeng BS, Meltzer HY, Scheidt KA. Enantioselective Syntheses of Heteroyohimbine Natural Products: A Unified Approach through Cooperative Catalysis. Angew Chem Int Ed Engl 2015; 54:6900-4. [DOI: 10.1002/anie.201502011] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Indexed: 12/28/2022]
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Bradshaw B, Luque-Corredera C, Saborit G, Cativiela C, Dorel R, Bo C, Bonjoch J. Synthetic and DFT Studies Towards a Unified Approach to Phlegmarine Alkaloids: Aza-Michael Intramolecular Processes Leading to 5-Oxodecahydroquinolines. Chemistry 2013; 19:13881-92. [DOI: 10.1002/chem.201301715] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2013] [Indexed: 11/06/2022]
Affiliation(s)
- Ben Bradshaw
- Laboratori de Química Orgànica, Facultat de Farmàcia, Universitat de Barcelona, Av. Joan XXIII s/n, 08028-Barcelona (Spain), Fax: (+34) 934024539.
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Wu M, Ma D. Total Syntheses of (±)-Spiroquinazoline, (−)-Alantryphenone, (+)-Lapatin A, and (−)-Quinadoline B. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201303893] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Wu M, Ma D. Total Syntheses of (±)-Spiroquinazoline, (−)-Alantryphenone, (+)-Lapatin A, and (−)-Quinadoline B. Angew Chem Int Ed Engl 2013; 52:9759-62. [DOI: 10.1002/anie.201303893] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2013] [Revised: 06/17/2013] [Indexed: 11/08/2022]
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Regio- and Enantioselective Cobalt-Catalyzed Reductive [3+2] Cycloaddition Reaction of Alkynes with Cyclic Enones: A Route to Bicyclic Tertiary Alcohols. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201205115] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Wei CH, Mannathan S, Cheng CH. Regio- and Enantioselective Cobalt-Catalyzed Reductive [3+2] Cycloaddition Reaction of Alkynes with Cyclic Enones: A Route to Bicyclic Tertiary Alcohols. Angew Chem Int Ed Engl 2012; 51:10592-5. [DOI: 10.1002/anie.201205115] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2012] [Revised: 08/13/2012] [Indexed: 01/02/2023]
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Chen J, Gao P, Yu F, Yang Y, Zhu S, Zhai H. Total Synthesis of (±)-Merrilactone A. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201200378] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Chen J, Gao P, Yu F, Yang Y, Zhu S, Zhai H. Total synthesis of (±)-merrilactone A. Angew Chem Int Ed Engl 2012; 51:5897-9. [PMID: 22565358 DOI: 10.1002/anie.201200378] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2012] [Revised: 02/24/2012] [Indexed: 11/11/2022]
Affiliation(s)
- Jianwei Chen
- Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
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Larson RT, Clift MD, Thomson RJ. Total Synthesis of the Galbulimima Alkaloid (−)-GB17. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201108227] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Larson RT, Clift MD, Thomson RJ. Total synthesis of the Galbulimima alkaloid (-)-GB17. Angew Chem Int Ed Engl 2012; 51:2481-4. [PMID: 22287499 DOI: 10.1002/anie.201108227] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2011] [Indexed: 11/09/2022]
Affiliation(s)
- Reed T Larson
- Department of Chemistry, Northwestern University, 2145 Sheridan Rd, Evanston, IL 60208, USA
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Zi W, Yu S, Ma D. Synthetic Studies toward Galbulimima Alkaloid (−)-GB 13 and (+)-GB 16 and (−)-Himgaline. Chem Asian J 2010; 6:573-9. [DOI: 10.1002/asia.201000556] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2010] [Indexed: 11/11/2022]
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