1
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d’Aleman A, Gayraud O, Fressigné C, Petit E, Bailly L, Maddaluno J, De Paolis M. Organocatalyzed enantio- and diastereoselective isomerization of prochiral 1,3-cyclohexanediones into nonalactones bearing distant stereocenters. Chem Sci 2023; 14:2107-2113. [PMID: 36845928 PMCID: PMC9945243 DOI: 10.1039/d2sc06842g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Accepted: 01/27/2023] [Indexed: 01/30/2023] Open
Abstract
The lactonization of 2-(2-nitrophenyl)-1,3-cyclohexanediones containing an alcohol side chain and up to three distant prochiral elements is reported by isomerization under the mediation of simple organocatalysts such as quinidine. Through a process of ring expansion, strained nonalactones and decalactone are produced with up to three stereocenters in high er and dr (up to 99 : 1). Distant groups, including alkyl, aryl, carboxylate and carboxamide moieties, were examined.
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2
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Kim UB, Samala S, Kim N, Bogonda G, Lago‐Santomé H, Jeong Y, Kim J, Jung J, Jeon S, Lee SJ, Shin H. Scalable synthesis of the
C14–C23
fragment of Eribulin and Halichondrin B. B KOREAN CHEM SOC 2022. [DOI: 10.1002/bkcs.12624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- U. Bin Kim
- R&D Center Yonsung Fine Chemicals Co., Ltd Suwon‐si Republic of Korea
| | - Srinivas Samala
- R&D Center Yonsung Fine Chemicals Co., Ltd Suwon‐si Republic of Korea
| | - Namhyeon Kim
- R&D Center Yonsung Fine Chemicals Co., Ltd Suwon‐si Republic of Korea
| | - Ganganna Bogonda
- R&D Center Yonsung Fine Chemicals Co., Ltd Suwon‐si Republic of Korea
| | - Hugo Lago‐Santomé
- R&D Center Yonsung Fine Chemicals Co., Ltd Suwon‐si Republic of Korea
| | - Youngdo Jeong
- R&D Center Yonsung Fine Chemicals Co., Ltd Suwon‐si Republic of Korea
| | - Jin Kim
- R&D Center Yonsung Fine Chemicals Co., Ltd Suwon‐si Republic of Korea
| | - Jaehun Jung
- R&D Center Yonsung Fine Chemicals Co., Ltd Suwon‐si Republic of Korea
| | - Sung‐Hyun Jeon
- R&D Center Yonsung Fine Chemicals Co., Ltd Suwon‐si Republic of Korea
| | - Seung Jong Lee
- R&D Center Yonsung Fine Chemicals Co., Ltd Suwon‐si Republic of Korea
| | - Hyunik Shin
- R&D Center Yonsung Fine Chemicals Co., Ltd Suwon‐si Republic of Korea
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3
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Brambilla E, Abbiati G, Caselli A, Pirovano V, Rossi E. Coinage metal carbenes in heterocyclic synthesis via formation of new carbon-heteroatom bonds. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.132778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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4
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Campbell A, Som IM, Wilson C, Clark JS. Total Syntheses of 11-Acetoxy-4-deoxyasbestinin D, 4-Deoxyasbestinin C, Asbestinin-10, -20, -21 and -23. Chemistry 2020; 26:1155-1160. [PMID: 31710141 PMCID: PMC7027880 DOI: 10.1002/chem.201904998] [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: 11/01/2019] [Indexed: 11/30/2022]
Abstract
Six members of the asbestinin family of marine diterpene natural products have been synthesized in an efficient and stereoselective manner from a single oxa‐bridged intermediate. Five of these natural products have not been synthesized previously and the structures of four of them have been confirmed as those proposed originally or following revisions to the original structures. The fifth natural product—asbestinin‐21—has been shown to be a diastereomer of the compound that had been proposed previously.
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Affiliation(s)
- Angus Campbell
- School of Chemistry, Joseph Black Building, University of Glasgow, University Avenue, Glasgow, G12 8QQ, UK
| | - Ian Mat Som
- School of Chemistry, Joseph Black Building, University of Glasgow, University Avenue, Glasgow, G12 8QQ, UK
| | - Claire Wilson
- School of Chemistry, Joseph Black Building, University of Glasgow, University Avenue, Glasgow, G12 8QQ, UK
| | - J Stephen Clark
- School of Chemistry, Joseph Black Building, University of Glasgow, University Avenue, Glasgow, G12 8QQ, UK
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5
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Li G, Dickschat JS, Guo YW. Diving into the world of marine 2,11-cyclized cembranoids: a summary of new compounds and their biological activities. Nat Prod Rep 2020; 37:1367-1383. [DOI: 10.1039/d0np00016g] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
This review summarises new marine 2,11-cyclized cembranoids from the past decade in a structured presentation according to their hypothetical biosynthesis.
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Affiliation(s)
- Geng Li
- State Key Laboratory of Drug Research
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai 201203
- China
| | - Jeroen S. Dickschat
- Kekulé-Institute for Organic Chemistry and Biochemistry
- University of Bonn
- 53121 Bonn
- Germany
| | - Yue-Wei Guo
- State Key Laboratory of Drug Research
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai 201203
- China
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6
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Matulja D, Kolympadi Markovic M, Ambrožić G, Laclef S, Pavelić SK, Marković D. Secondary Metabolites from Gorgonian Corals of the Genus Eunicella: Structural Characterizations, Biological Activities, and Synthetic Approaches. Molecules 2019; 25:molecules25010129. [PMID: 31905691 PMCID: PMC6983218 DOI: 10.3390/molecules25010129] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Revised: 12/24/2019] [Accepted: 12/26/2019] [Indexed: 12/11/2022] Open
Abstract
Gorgonian corals, which belong to the genus Eunicella, are known as natural sources of diverse compounds with unique structural characteristics and interesting bioactivities both in vitro and in vivo. This review is focused primarily on the secondary metabolites isolated from various Eunicella species. The chemical structures of 64 compounds were divided into three main groups and comprehensively presented: a) terpenoids, b) sterols, and c) alkaloids and nucleosides. The observed biological activities of depicted metabolites with an impact on cytotoxic, anti-inflammatory, and antimicrobial activities were reviewed. The most promising biological activities of certain metabolites point to potential candidates for further development in pharmaceutical, cosmetic, and other industries, and are highlighted. Total synthesis or the synthetic approaches towards the desired skeletons or natural products are also summarized.
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Affiliation(s)
- Dario Matulja
- Department of Biotechnology, University of Rijeka, Radmile Matejčić 2, 51000 Rijeka, Croatia;
| | - Maria Kolympadi Markovic
- Department of Physics and Centre for Micro- and Nanosciences and Technologies, University of Rijeka, Radmile Matejčić 2, 51000 Rijeka, Croatia; (M.K.M.); (G.A.)
| | - Gabriela Ambrožić
- Department of Physics and Centre for Micro- and Nanosciences and Technologies, University of Rijeka, Radmile Matejčić 2, 51000 Rijeka, Croatia; (M.K.M.); (G.A.)
| | - Sylvain Laclef
- Laboratoire de Glycochimie, des Antimicrobiens et des Agroressources (LG2A) UMR CNRS 7378—Institut de Chimie de Picardie FR 3085, Université de Picardie Jules Verne, 33 rue Saint Leu, FR-80039 Amiens CEDEX, France;
| | - Sandra Kraljević Pavelić
- Department of Biotechnology, University of Rijeka, Radmile Matejčić 2, 51000 Rijeka, Croatia;
- Correspondence: (S.K.P.); (D.M.); Tel.: +385-51-584-550 (S.K.P.); +385-51-584-816 (D.M.)
| | - Dean Marković
- Department of Biotechnology, University of Rijeka, Radmile Matejčić 2, 51000 Rijeka, Croatia;
- Correspondence: (S.K.P.); (D.M.); Tel.: +385-51-584-550 (S.K.P.); +385-51-584-816 (D.M.)
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7
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Jinnouchi H, Nambu H, Takahashi K, Fujiwara T, Yakura T. Chemo- and stereoselective six-membered oxonium ylide formation–[2,3]-sigmatropic rearrangement of 2-diazo-3-ketoesters with dirhodium(II) catalyst and its application to the synthesis of (+)-tanikolide. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.03.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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8
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Foy NJ, Forbes KC, Crooke AM, Gruber MD, Cannon JS. Dual Lewis Acid/Photoredox-Catalyzed Addition of Ketyl Radicals to Vinylogous Carbonates in the Synthesis of 2,6-Dioxabicyclo[3.3.0]octan-3-ones. Org Lett 2018; 20:5727-5731. [PMID: 30188722 DOI: 10.1021/acs.orglett.8b02442] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A combined Lewis acid/photoredox catalyst system enabled the intramolecular umpolung addition of ketyl radicals to vinylogous carbonates in the synthesis of 2,6-dioxabicyclo[3.3.0]octan-3-ones. This reaction proceeded on a variety of aromatic ketones to provide THF rings in good yield (up to 95%). Although diastereoselectivity was found to be modest (1.4-5:1) for the C-C bond forming reaction, the minor diastereomers were converted to 2,6-dioxabicyclo[3.3.0]octan-3-ones by an efficient Lewis acid-mediated epimerization cascade in up to 90% yield.
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Affiliation(s)
- Nicholas J Foy
- Department of Chemistry , Occidental College , Los Angeles , California 90041 , United States
| | - Katherine C Forbes
- Department of Chemistry , Occidental College , Los Angeles , California 90041 , United States
| | - Anne Marie Crooke
- Department of Chemistry , Occidental College , Los Angeles , California 90041 , United States
| | - Maxwell D Gruber
- Department of Chemistry , Occidental College , Los Angeles , California 90041 , United States
| | - Jeffrey S Cannon
- Department of Chemistry , Occidental College , Los Angeles , California 90041 , United States
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9
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Jinnouchi H, Nambu H, Fujiwara T, Yakura T. Divergent synthesis of (+)-tanikolide and its analogues employing stereoselective rhodium(II)-catalyzed reaction. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.01.035] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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10
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Chen ZS, Huang XY, Chen LH, Gao JM, Ji K. Rh(II)/Pd(0) Dual Catalysis: Regiodivergent Transformations of Alkylic Oxonium Ylides. ACS Catal 2017. [DOI: 10.1021/acscatal.7b02909] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Zi-Sheng Chen
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry and Pharmacy, Northwest A&F University, Yangling 712100, Shaanxi, People’s Republic of China
| | - Xiao-Yan Huang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry and Pharmacy, Northwest A&F University, Yangling 712100, Shaanxi, People’s Republic of China
| | - Ling-Hang Chen
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry and Pharmacy, Northwest A&F University, Yangling 712100, Shaanxi, People’s Republic of China
| | - Jin-Ming Gao
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry and Pharmacy, Northwest A&F University, Yangling 712100, Shaanxi, People’s Republic of China
| | - Kegong Ji
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry and Pharmacy, Northwest A&F University, Yangling 712100, Shaanxi, People’s Republic of China
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11
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12
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Welford AJ, Caldwell JJ, Liu M, Richards M, Brown N, Lomas C, Tizzard GJ, Pitak MB, Coles SJ, Eccles SA, Raynaud FI, Collins I. Synthesis and Evaluation of a 2,11-Cembranoid-Inspired Library. Chemistry 2016; 22:5657-64. [PMID: 26929153 PMCID: PMC4869678 DOI: 10.1002/chem.201505093] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Indexed: 01/22/2023]
Abstract
The 2,11-cembranoid family of natural products has been used as inspiration for the synthesis of a structurally simplified, functionally diverse library of octahydroisobenzofuran-based compounds designed to augment a typical medicinal chemistry library screen. Ring-closing metathesis, lactonisation and SmI2 -mediated methods were exemplified and applied to the installation of a third ring to mimic the nine-membered ring of the 2,11-cembranoids. The library was assessed for aqueous solubility and permeability, with a chemical-space analysis performed for comparison to the family of cembranoid natural products and a sample set of a screening library. Preliminary investigations in cancer cells showed that the simpler scaffolds could recapitulate the reported anti-migratory activity of the natural products.
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Affiliation(s)
- Amanda J Welford
- Division of Cancer Therapeutics, The Institute of Cancer Research, London, SM2 5NG, UK
| | - John J Caldwell
- Division of Cancer Therapeutics, The Institute of Cancer Research, London, SM2 5NG, UK.
| | - Manjuan Liu
- Division of Cancer Therapeutics, The Institute of Cancer Research, London, SM2 5NG, UK
| | - Meirion Richards
- Division of Cancer Therapeutics, The Institute of Cancer Research, London, SM2 5NG, UK
| | - Nathan Brown
- Division of Cancer Therapeutics, The Institute of Cancer Research, London, SM2 5NG, UK
| | - Cara Lomas
- Division of Cancer Therapeutics, The Institute of Cancer Research, London, SM2 5NG, UK
| | - Graham J Tizzard
- UK National Crystallography Service, University of Southampton, Southampton, SO17 1BJ, UK
| | - Mateusz B Pitak
- UK National Crystallography Service, University of Southampton, Southampton, SO17 1BJ, UK
| | - Simon J Coles
- UK National Crystallography Service, University of Southampton, Southampton, SO17 1BJ, UK
| | - Suzanne A Eccles
- Division of Cancer Therapeutics, The Institute of Cancer Research, London, SM2 5NG, UK
| | - Florence I Raynaud
- Division of Cancer Therapeutics, The Institute of Cancer Research, London, SM2 5NG, UK
| | - Ian Collins
- Division of Cancer Therapeutics, The Institute of Cancer Research, London, SM2 5NG, UK
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13
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Song Z, Wu Y, Xin T, Jin C, Wen X, Sun H, Xu QL. The Rh(ii)-catalyzed formal N–S bond insertion reaction of aryldiazoacetates into N-phenyl-sulfenyl phthalimide. Chem Commun (Camb) 2016; 52:6079-82. [DOI: 10.1039/c6cc02641a] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The Rh(ii)-catalyzed sulfur ylide [1,2]-rearrangement of carbenoids generated from aryldiazoacetates has been realized via N–S bond insertion under low catalyst loading.
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Affiliation(s)
- Zhuang Song
- Jiangsu Key Laboratory of Drug Discovery for Metabolic Disease and State Key Laboratory of Natural Medicines
- China Pharmaceutical University
- Nanjing 210009
- China
| | - Yizhou Wu
- Jiangsu Key Laboratory of Drug Discovery for Metabolic Disease and State Key Laboratory of Natural Medicines
- China Pharmaceutical University
- Nanjing 210009
- China
| | - Tao Xin
- Jiangsu Key Laboratory of Drug Discovery for Metabolic Disease and State Key Laboratory of Natural Medicines
- China Pharmaceutical University
- Nanjing 210009
- China
| | - Chao Jin
- Jiangsu Key Laboratory of Drug Discovery for Metabolic Disease and State Key Laboratory of Natural Medicines
- China Pharmaceutical University
- Nanjing 210009
- China
| | - Xiaoan Wen
- Jiangsu Key Laboratory of Drug Discovery for Metabolic Disease and State Key Laboratory of Natural Medicines
- China Pharmaceutical University
- Nanjing 210009
- China
| | - Hongbin Sun
- Jiangsu Key Laboratory of Drug Discovery for Metabolic Disease and State Key Laboratory of Natural Medicines
- China Pharmaceutical University
- Nanjing 210009
- China
| | - Qing-Long Xu
- Jiangsu Key Laboratory of Drug Discovery for Metabolic Disease and State Key Laboratory of Natural Medicines
- China Pharmaceutical University
- Nanjing 210009
- China
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14
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Hooper JF, James NC, Bozkurt E, Aviyente V, White JM, Holland MC, Gilmour R, Holmes AB, Houk KN. Medium-Ring Effects on the Endo/Exo Selectivity of the Organocatalytic Intramolecular Diels–Alder Reaction. J Org Chem 2015; 80:12058-75. [DOI: 10.1021/acs.joc.5b02037] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Joel F. Hooper
- School
of Chemistry, Bio21 Institute, The University of Melbourne, 30 Flemington
Road, Melbourne, Victoria 3010, Australia
| | - Natalie C. James
- Department
of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Esra Bozkurt
- Laboratory
of Computational Chemistry and Biochemistry, Ecole Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - Viktorya Aviyente
- Department
of Chemistry, Boğaziçi University, Bebek 34342, Istanbul, Turkey
| | - Jonathan M. White
- School
of Chemistry, Bio21 Institute, The University of Melbourne, 30 Flemington
Road, Melbourne, Victoria 3010, Australia
| | - Mareike C. Holland
- Department
of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
- Organisch-Chemisches
Institut, Westfälische Wilhelms-Universität Münster, 48149 Münster, Germany
| | - Ryan Gilmour
- Organisch-Chemisches
Institut, Westfälische Wilhelms-Universität Münster, 48149 Münster, Germany
| | - Andrew B. Holmes
- School
of Chemistry, Bio21 Institute, The University of Melbourne, 30 Flemington
Road, Melbourne, Victoria 3010, Australia
| | - K. N. Houk
- Department
of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
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15
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West TH, Spoehrle SSM, Kasten K, Taylor JE, Smith AD. Catalytic Stereoselective [2,3]-Rearrangement Reactions. ACS Catal 2015. [DOI: 10.1021/acscatal.5b02070] [Citation(s) in RCA: 112] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Thomas H. West
- EaStCHEM,
School of Chemistry, University of St. Andrews, North Haugh, St. Andrews KY16 9ST, United Kingdom
| | - Stéphanie S. M. Spoehrle
- EaStCHEM,
School of Chemistry, University of St. Andrews, North Haugh, St. Andrews KY16 9ST, United Kingdom
| | - Kevin Kasten
- EaStCHEM,
School of Chemistry, University of St. Andrews, North Haugh, St. Andrews KY16 9ST, United Kingdom
| | - James E. Taylor
- EaStCHEM,
School of Chemistry, University of St. Andrews, North Haugh, St. Andrews KY16 9ST, United Kingdom
| | - Andrew D. Smith
- EaStCHEM,
School of Chemistry, University of St. Andrews, North Haugh, St. Andrews KY16 9ST, United Kingdom
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16
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Clark JS, Delion L, Farrugia LJ. Synthesis of four diastereomers of sclerophytin F and structural reassignment of several sclerophytin natural products. Chemistry 2015; 21:4772-80. [PMID: 25663662 DOI: 10.1002/chem.201406051] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2014] [Indexed: 11/09/2022]
Abstract
Synthesis of the triol that has been proposed to be the marine natural product sclerophytin F has been completed along with the syntheses of three diastereomers. Comparison of the NMR spectroscopic data for all four compounds to the data reported for the natural product reveals that sclerophytin F is not the 3S diastereomer of sclerophytin A as proposed by Friedrich and Paquette. Re-analysis of the NMR spectroscopic data for known sclerophytin natural products and synthetic analogues leads to the conclusion that sclerophytins E and F are the same compound. This finding has allowed structural reassignment of several other cladiellin natural products.
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Affiliation(s)
- J Stephen Clark
- WestCHEM, School of Chemistry, Joseph Black Building, University of Glasgow, University Avenue, Glasgow G12 8QQ (UK).
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17
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Boyer A. Rhodium(II)-Catalyzed Stereocontrolled Synthesis of 2-Tetrasubstituted Saturated Heterocycles from 1-Sulfonyl-1,2,3-triazoles. Org Lett 2014; 16:5878-81. [DOI: 10.1021/ol5028267] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Alistair Boyer
- School of Chemistry, University of Glasgow, Joseph Black
Building, University Avenue, Glasgow G12 8QQ, U.K
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18
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Fu J, Shen H, Chang Y, Li C, Gong J, Yang Z. Concise Stereoselective Synthesis of Oxaspirocycles with 1-Tosyl-1,2,3-triazoles: Application to the Total Syntheses of (±)-Tuberostemospiroline and (±)-Stemona-lactam R. Chemistry 2014; 20:12881-8. [DOI: 10.1002/chem.201403756] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2014] [Indexed: 01/16/2023]
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19
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Clark JS, Delion L, Farrugia LJ. Total synthesis of the purported structure of sclerophytin F. Org Lett 2014; 16:4300-3. [PMID: 25068316 DOI: 10.1021/ol5020152] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The synthesis of the compound that has been proposed to be the natural product sclerophytin F has been completed from a known vinylogous carbonate. The synthetic strategy relied upon rearrangement of a catalytically generated ylide-like intermediate to produce an oxabicyclo[6.2.1]-5-undecen-9-one and an intermolecular Diels-Alder reaction to construct the complete tricyclic core found in the natural product. Comparison of the spectroscopic data for synthetic material to that reported for sclerophytin F shows that the natural product does not have the revised structure possessing the 3S configuration (*) proposed previously.
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Affiliation(s)
- J Stephen Clark
- WestCHEM, School of Chemistry, Joseph Black Building, University of Glasgow , University Avenue, Glasgow, G12 8QQ, United Kingdom
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20
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Efficient Total Synthesis of Bioactive Natural Products: A Personal Record. CHEM REC 2014; 14:606-22. [DOI: 10.1002/tcr.201402015] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2014] [Indexed: 11/07/2022]
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21
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Clark JS, Hansen KE. Intramolecular Reactions of Metal Carbenoids with Allylic Ethers: Is a Free Ylide Involved in Every Case? Chemistry 2014; 20:5454-9. [DOI: 10.1002/chem.201304054] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2013] [Indexed: 11/09/2022]
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22
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Boyer A. Rhodium(II)-Catalyzed Stereocontrolled Synthesis of Dihydrofuran-3-imines from 1-Tosyl-1,2,3-triazoles. Org Lett 2014; 16:1660-3. [DOI: 10.1021/ol500309x] [Citation(s) in RCA: 83] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Alistair Boyer
- School of Chemistry, University of Glasgow, Joseph Black
Building, University Avenue, Glasgow G12 8QQ, U.K
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23
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Yue G, Zhang Y, Fang L, Li CC, Luo T, Yang Z. Collective Synthesis of Cladiellins Based on the Gold-Catalyzed Cascade Reaction of 1,7-Diynes. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201309449] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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24
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Yue G, Zhang Y, Fang L, Li CC, Luo T, Yang Z. Collective Synthesis of Cladiellins Based on the Gold-Catalyzed Cascade Reaction of 1,7-Diynes. Angew Chem Int Ed Engl 2014; 53:1837-40. [DOI: 10.1002/anie.201309449] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2013] [Indexed: 11/07/2022]
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25
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Clark JS, Romiti F. Total Syntheses of Amphidinolides T1, T3, and T4. Angew Chem Int Ed Engl 2013; 52:10072-5. [DOI: 10.1002/anie.201305467] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2013] [Indexed: 11/05/2022]
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26
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27
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Intramolecular generation and rearrangement of oxonium ylides: methodology studies and their application in synthesis. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.01.051] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Clark JS, Yang G, Osnowski AP. Synthesis of the C-1–C-17 Fragment of Amphidinolides C, C2, C3, and F. Org Lett 2013; 15:1460-3. [PMID: 23527702 DOI: 10.1021/ol4004838] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- J. Stephen Clark
- WestCHEM, School of Chemistry, Joseph Black Building, University of Glasgow, University Avenue, Glasgow G12 8QQ, United Kingdom
| | - Guang Yang
- WestCHEM, School of Chemistry, Joseph Black Building, University of Glasgow, University Avenue, Glasgow G12 8QQ, United Kingdom
| | - Andrew P. Osnowski
- WestCHEM, School of Chemistry, Joseph Black Building, University of Glasgow, University Avenue, Glasgow G12 8QQ, United Kingdom
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Fu J, Shang H, Wang Z, Chang L, Shao W, Yang Z, Tang Y. Gold-Catalyzed Rearrangement of Allylic Oxonium Ylides: Efficient Synthesis of Highly Functionalized Dihydrofuran-3-ones. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201208305] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Fu J, Shang H, Wang Z, Chang L, Shao W, Yang Z, Tang Y. Gold-catalyzed rearrangement of allylic oxonium ylides: efficient synthesis of highly functionalized dihydrofuran-3-ones. Angew Chem Int Ed Engl 2013; 52:4198-202. [PMID: 23468251 DOI: 10.1002/anie.201208305] [Citation(s) in RCA: 91] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2012] [Revised: 11/30/2012] [Indexed: 11/11/2022]
Affiliation(s)
- Junkai Fu
- Laboratory of Chemical Genomics, Peking University, Shenzhen Graduate School, Xili, Nanshan District, Shenzhen 518055, China
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Clark JS, Berger R, Hayes ST, Senn HM, Farrugia LJ, Thomas LH, Morrison AJ, Gobbi L. Total Syntheses of Multiple Cladiellin Natural Products by Use of a Completely General Strategy. J Org Chem 2012; 78:673-96. [DOI: 10.1021/jo302542h] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- J. Stephen Clark
- WestCHEM, School of Chemistry,
Joseph Black Building, University of Glasgow, University Avenue, Glasgow G12 8QQ, United Kingdom
| | - Raphaëlle Berger
- WestCHEM, School of Chemistry,
Joseph Black Building, University of Glasgow, University Avenue, Glasgow G12 8QQ, United Kingdom
| | - Stewart T. Hayes
- School of Chemistry, University of Nottingham, University Park, Nottingham
NG7 2RD, United Kingdom
| | - Hans Martin Senn
- WestCHEM, School of Chemistry,
Joseph Black Building, University of Glasgow, University Avenue, Glasgow G12 8QQ, United Kingdom
| | - Louis J. Farrugia
- WestCHEM, School of Chemistry,
Joseph Black Building, University of Glasgow, University Avenue, Glasgow G12 8QQ, United Kingdom
| | - Lynne H. Thomas
- WestCHEM, School of Chemistry,
Joseph Black Building, University of Glasgow, University Avenue, Glasgow G12 8QQ, United Kingdom
| | | | - Luca Gobbi
- Discovery Chemistry (PRCB), F. Hoffmann-La Roche Ltd. Pharmaceuticals Division,
CH-4070 Basel, Switzerland
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Abstract
Covering: 2010. Previous review: Nat. Prod. Rep., 2011, 28, 196. This review covers the literature published in 2010 for marine natural products, with 895 citations (590 for the period January to December 2010) referring to compounds isolated from marine microorganisms and phytoplankton, green, brown and red algae, sponges, cnidarians, bryozoans, molluscs, tunicates, echinoderms, mangroves and other intertidal plants and microorganisms. The emphasis is on new compounds (1003 for 2010), together with the relevant biological activities, source organisms and country of origin. Biosynthetic studies, first syntheses, and syntheses that lead to the revision of structures or stereochemistries, have been included.
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Affiliation(s)
- John W Blunt
- Department of Chemistry, University of Canterbury, Christchurch, New Zealand.
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Welford AJ, Collins I. The 2,11-cyclized cembranoids: cladiellins, asbestinins, and briarellins (period 1998-2010). JOURNAL OF NATURAL PRODUCTS 2011; 74:2318-2328. [PMID: 21970540 DOI: 10.1021/np200125v] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The 2,11-cyclized cembranoids are isolated from marine invertebrates of Octocorallia species. They are a very interesting class of natural products sharing a common oxatricyclo[6.6.1.0(2,7)]pentadecane core and carrying a varied substituent pattern. This review presents their structural diversity along with the reported biological activities. The 2,11-cyclized cembranoids were comprehensively reviewed previously in 1998, and this contribution will serve as an update of that work. Since 1998 a number of structural assignments of the isolated products have been revised, some as a result of total synthesis efforts. The chemical reactivity of several of the natural compounds has been studied, and the relevance of these findings to the biosynthesis or the generation of isolation artifacts is discussed. The wide range of biological activities displayed by the 2,11-cyclized cembranoids justifies the interest shown within the synthetic chemistry community and suggests that this class of natural products remains a fruitful area for future synthetic and biological research.
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Affiliation(s)
- Amanda J Welford
- Cancer Research UK Cancer Therapeutics Unit, Institute of Cancer Research, 15 Cotswold Road, Sutton, Surrey SM2 5NG, UK
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Clark JS, Vignard D, Parkin A. Synthesis of the tricyclic core of labiatin A and australin A. Org Lett 2011; 13:3980-3. [PMID: 21732661 DOI: 10.1021/ol201498g] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A concise synthesis of the tricyclic core of the marine diterpene natural products labiatin A and australin A has been accomplished. The key ring-forming transformation is a cascade reaction comprising generation of a copper carbenoid from a diazo ketone, intramolecular reaction of the carbenoid with a cyclic ether, and rearrangement of the resulting free oxonium ylide or its metal-bound equivalent with ring expansion of the original cyclic ether.
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Affiliation(s)
- J Stephen Clark
- WestCHEM, School of Chemistry, University of Glasgow, Joseph Black Building, University Avenue, Glasgow G12 8QQ, United Kingdom.
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Chen ZH, Tu YQ, Zhang SY, Zhang FM. Development of the Intramolecular Prins Cyclization/Schmidt Reaction for the Construction of the Azaspiro[4,4]nonane: Application to the Formal Synthesis of (±)-Stemonamine. Org Lett 2011; 13:724-7. [DOI: 10.1021/ol102955e] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Zhi-Hua Chen
- 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
| | - Shu-Yu 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
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Stewart C, McDonald R, West FG. Expedient Route to the Tigliane-Daphnane Skeleton via Oxonium Ylide [1,2]-Shift. Org Lett 2011; 13:720-3. [DOI: 10.1021/ol102953s] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Craig Stewart
- Department of Chemistry, University of Alberta, E3-43 Gunning-Lemieux Chemistry Centre, Edmonton, AB T6G 2G2, Canada
| | - Robert McDonald
- Department of Chemistry, University of Alberta, E3-43 Gunning-Lemieux Chemistry Centre, Edmonton, AB T6G 2G2, Canada
| | - F. G. West
- Department of Chemistry, University of Alberta, E3-43 Gunning-Lemieux Chemistry Centre, Edmonton, AB T6G 2G2, Canada
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Silva, Jr. LF, Olofsson B. Hypervalent iodine reagents in the total synthesis of natural products. Nat Prod Rep 2011; 28:1722-54. [DOI: 10.1039/c1np00028d] [Citation(s) in RCA: 247] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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