1
|
Seipp K, Kammler C, Rossdam NO, Eckhardt P, Kiefer AM, Erkel G, Opatz T. Total Synthesis, Structure Reassignment, and Biological Evaluation of the Anti-Inflammatory Macrolactone 13-Hydroxy-14-deoxyoxacyclododecindione. JOURNAL OF NATURAL PRODUCTS 2024; 87:1131-1149. [PMID: 38555526 DOI: 10.1021/acs.jnatprod.4c00082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/02/2024]
Abstract
Herein, the first total synthesis of natural 13-hydroxy-14-deoxyoxacyclododecindione along with the revision of the proposed configuration is reported. This natural product, initially discovered in 2018, belongs to the oxacyclododecindione family, renowned for their remarkable anti-inflammatory and antifibrotic activities. The synthetic route involves an esterification/Friedel-Crafts-acylation approach and uses various triol fragments. It allows the preparation of different stereoisomers, including the (revised) natural product, two threo-derivatives, and two Z-isomers of the endocyclic C═C double bond. Furthermore, a late-stage inversion of the C-13 stereocenter could transform the originally proposed structure into the revised natural product. With this comprehensive set of compounds and the previously prepared (13R,14S,15R)-isomer, deeper insights into their structural properties and biological activities were obtained. A detailed analysis of the final macrolactones using spectroscopy (NMR, IR, UV-vis) and X-ray crystallography gave new insights such as the significance of the optical rotation for the elucidation of their configuration and the light-induced E/Z double-bond photoisomerization. The pharmacological potential of the compounds was underlined by remarkably low IC50 values in biological assays addressing the inhibition of cellular inflammatory responses.
Collapse
Affiliation(s)
- Kevin Seipp
- Department of Chemistry, Johannes Gutenberg-University, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Claudia Kammler
- Department of Chemistry, Johannes Gutenberg-University, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Nils Ole Rossdam
- Department of Chemistry, Johannes Gutenberg-University, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Paul Eckhardt
- Department of Chemistry, Johannes Gutenberg-University, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Anna Maria Kiefer
- Department of Molecular Biotechnology & Systems Biology, RPTU Kaiserslautern-Landau, Paul-Ehrlich-Straße 23, Building 23, 67663 Kaiserslautern, Germany
| | - Gerhard Erkel
- Department of Molecular Biotechnology & Systems Biology, RPTU Kaiserslautern-Landau, Paul-Ehrlich-Straße 23, Building 23, 67663 Kaiserslautern, Germany
| | - Till Opatz
- Department of Chemistry, Johannes Gutenberg-University, Duesbergweg 10-14, 55128 Mainz, Germany
| |
Collapse
|
2
|
Woods JE, Jourdain RM, Romo D. Synthesis and Stability Studies of a Simplified, Thiazole-Containing Macrocycle of the Anticancer Agent Salarin C. Org Lett 2022; 24:6891-6896. [PMID: 35975906 PMCID: PMC9746118 DOI: 10.1021/acs.orglett.2c02326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
While salarin C (SalaC) is a potent marine cytotoxin, Kashman demonstrated that congeners which had undergone Wasserman rearrangement exhibit little to no cytotoxicity. Given that thiazoles are known to undergo Wasserman rearrangement at a significantly reduced rate, we hypothesized that a thiazole-containing SalaC would exhibit greater stability without significantly altering the macrocyclic conformation. Herein, we describe the synthesis of a simplified, thiazole-containing macrocycle which demonstrates significantly improved stability under identical aerobic conditions.
Collapse
|
3
|
Nakada M. Research on the Efficient Enantioselective Total Synthesis of Useful Bioactive Polycyclic Compounds. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2022. [DOI: 10.1246/bcsj.20210329] [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)
- Masahisa Nakada
- Department of Chemistry and Biochemistry, Graduate School of Advanced Science and Engineering, Waseda University, 3-4-1, Okubo, Shinjuku-ku, Tokyo 119-8555
| |
Collapse
|
4
|
Yang M, Yu Y, Ma W, Feng Y, Zhang G, Wu Y, Zhou F, Yang Y, Liu D. Palladium-catalyzed hydroboration reaction of unactivated alkynes with bis (pinacolato) diboron in water. RSC Adv 2022; 12:9815-9820. [PMID: 35424934 PMCID: PMC8961796 DOI: 10.1039/d1ra09136k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Accepted: 03/14/2022] [Indexed: 11/21/2022] Open
Abstract
A highly efficient and mild palladium-catalyzed hydroboration of unactivated internal alkynes in water is described. Both aryl- and alkyl-substituted alkynes proceeded smoothly within the reaction time to afford the desired vinylboronates in moderate to high yields. Bis (pinacolato) diboron was used to afford α- and β-hydroborated products in the presence of HOAc. These reactions showed high reactivities and tolerance, thus providing a promising method for the synthesis of alkenyl boron compounds.
Collapse
Affiliation(s)
- Ming Yang
- School of Chemistry and Engineering, Hubei Key Laboratory of Biomass Fibers and Eco-dyeing & Finishing, Wuhan Textile University 1 Textile Road Wuhan 430073 Hubei China
| | - Yunzi Yu
- School of Chemistry and Engineering, Hubei Key Laboratory of Biomass Fibers and Eco-dyeing & Finishing, Wuhan Textile University 1 Textile Road Wuhan 430073 Hubei China
| | - Wenxia Ma
- School of Chemistry and Engineering, Hubei Key Laboratory of Biomass Fibers and Eco-dyeing & Finishing, Wuhan Textile University 1 Textile Road Wuhan 430073 Hubei China
| | - Yuqin Feng
- School of Chemistry and Engineering, Hubei Key Laboratory of Biomass Fibers and Eco-dyeing & Finishing, Wuhan Textile University 1 Textile Road Wuhan 430073 Hubei China
| | - Gang Zhang
- School of Chemistry and Engineering, Hubei Key Laboratory of Biomass Fibers and Eco-dyeing & Finishing, Wuhan Textile University 1 Textile Road Wuhan 430073 Hubei China
| | - Yaqi Wu
- School of Chemistry and Engineering, Hubei Key Laboratory of Biomass Fibers and Eco-dyeing & Finishing, Wuhan Textile University 1 Textile Road Wuhan 430073 Hubei China
| | - Fanyu Zhou
- School of Chemistry and Engineering, Hubei Key Laboratory of Biomass Fibers and Eco-dyeing & Finishing, Wuhan Textile University 1 Textile Road Wuhan 430073 Hubei China
| | - Yongsheng Yang
- School of Chemistry and Engineering, Hubei Key Laboratory of Biomass Fibers and Eco-dyeing & Finishing, Wuhan Textile University 1 Textile Road Wuhan 430073 Hubei China
| | - Dezheng Liu
- School of Mechanical Engineering, Hubei University of Arts and Science No. 296 Longzhong Road Xiangyang Hubei Province 41053 P. R. China
| |
Collapse
|
5
|
Hill SJ, Brion AUCM, Shenvi RA. Chemical syntheses of the salvinorin chemotype of KOR agonist. Nat Prod Rep 2020; 37:1478-1496. [PMID: 32808003 DOI: 10.1039/d0np00028k] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Covering: 2000 to 2020 The hallucinogenic diterpene salvinorin A potently and selectively agonizes the human kappa-opioid receptor (KOR). Its unique attributes-lack of a basic nitrogen, rapid brain penetrance, short half-life-combined with the potential of KOR as an emerging target for analgesics have stimulated extensive medicinal chemistry based on semi-synthesis from extracts of Salvia divinorum. Total synthesis efforts have delivered multiple, orthogonal routes to salvinorin A, its congeners and related analogs with the goal of optimizing its activity towards multiple functional endpoints. Here we review total syntheses of the salvinorin chemotype and discuss outstanding problems that synthesis can address in the future.
Collapse
Affiliation(s)
- Sarah J Hill
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, USA.
| | - Aurélien U C M Brion
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, USA.
| | - Ryan A Shenvi
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, USA.
| |
Collapse
|
6
|
Hu YJ, Li LX, Han JC, Min L, Li CC. Recent Advances in the Total Synthesis of Natural Products Containing Eight-Membered Carbocycles (2009-2019). Chem Rev 2020; 120:5910-5953. [PMID: 32343125 DOI: 10.1021/acs.chemrev.0c00045] [Citation(s) in RCA: 74] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Natural products containing eight-membered carbocycles constitute a class of structurally intriguing and biologically important molecules such as the famous diterpenes taxol and vinigrol. Such natural products are being increasingly investigated because of their fascinating architectural features and potent medicinal properties. However, synthesis of natural products with cyclooctane moieties has proved to be highly challenging. This review highlights the recently completed total syntheses of natural products with eight-membered carbocycles with a focus on strategic considerations. A collection of 27 representative studies from the literature covering the decade from 2009 to 2019 is described in chronological order with relevant studies grouped together, including syntheses of the same natural product by different research groups using different strategies. Finally, a summary and outlook including a discussion of the major features of each strategy used in the syntheses are presented. This review illustrates the diversity and creativity in the elegant synthetic designs of eight-membered carbocycles. We hope this review will provide timely illumination and beneficial guidance for future synthetic efforts for organic chemists who are interested in this area.
Collapse
Affiliation(s)
- Ya-Jian Hu
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology (SUSTech), Shenzhen 518055, China
| | - Li-Xuan Li
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology (SUSTech), Shenzhen 518055, China
| | - Jing-Chun Han
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology (SUSTech), Shenzhen 518055, China
| | - Long Min
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology (SUSTech), Shenzhen 518055, China
| | - Chuang-Chuang Li
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology (SUSTech), Shenzhen 518055, China
| |
Collapse
|
7
|
Docherty JH, Nicholson K, Dominey AP, Thomas SP. A Boron–Boron Double Transborylation Strategy for the Synthesis of gem-Diborylalkanes. ACS Catal 2020. [DOI: 10.1021/acscatal.0c00869] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Jamie H. Docherty
- EaStCHEM School of Chemistry, University of Edinburgh, Joseph Black Building, David Brewster Road, Edinburgh EH9 3FJ, United Kingdom
| | - Kieran Nicholson
- EaStCHEM School of Chemistry, University of Edinburgh, Joseph Black Building, David Brewster Road, Edinburgh EH9 3FJ, United Kingdom
| | - Andrew P. Dominey
- GSK Medicines Research Centre, Gunnels Wood Road, Stevenage, Hertfordshire SG1 2NY, United Kingdom
| | - Stephen P. Thomas
- EaStCHEM School of Chemistry, University of Edinburgh, Joseph Black Building, David Brewster Road, Edinburgh EH9 3FJ, United Kingdom
| |
Collapse
|
8
|
Nieto-Sepulveda E, Bage AD, Evans LA, Hunt TA, Leach AG, Thomas SP, Lloyd-Jones GC. Kinetics and Mechanism of the Arase-Hoshi R2BH-Catalyzed Alkyne Hydroboration: Alkenylboronate Generation via B–H/C–B Metathesis. J Am Chem Soc 2019; 141:18600-18611. [DOI: 10.1021/jacs.9b10114] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Eduardo Nieto-Sepulveda
- EaStChem, University of Edinburgh, Joseph Black Building, David Brewster Road, Edinburgh, EH9 3FJ, United Kingdom
| | - Andrew D. Bage
- EaStChem, University of Edinburgh, Joseph Black Building, David Brewster Road, Edinburgh, EH9 3FJ, United Kingdom
| | - Louise A. Evans
- EaStChem, University of Edinburgh, Joseph Black Building, David Brewster Road, Edinburgh, EH9 3FJ, United Kingdom
| | - Thomas A. Hunt
- Medicinal Chemistry, Oncology R&D, AstraZeneca, Cambridge, CB4 0WG, United Kingdom
| | - Andrew G. Leach
- School of Health Sciences, Stopford Building, The University of Manchester, Oxford Road, Manchester M13 9PT, United Kingdom
| | - Stephen P. Thomas
- EaStChem, University of Edinburgh, Joseph Black Building, David Brewster Road, Edinburgh, EH9 3FJ, United Kingdom
| | - Guy C. Lloyd-Jones
- EaStChem, University of Edinburgh, Joseph Black Building, David Brewster Road, Edinburgh, EH9 3FJ, United Kingdom
| |
Collapse
|
9
|
Wang TC, Fan LF, Shen Y, Wang PS, Gong LZ. Asymmetric Allylic C–H Alkylation of Allyl Ethers with 2-Acylimidazoles. J Am Chem Soc 2019; 141:10616-10620. [DOI: 10.1021/jacs.9b05247] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Tian-Ci Wang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Lian-Feng Fan
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Yang Shen
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Pu-Sheng Wang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Liu-Zhu Gong
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
- Center for Excellence in Molecular Synthesis of CAS, Hefei 230026, China
| |
Collapse
|
10
|
Chan D, Chen Y, Low KH, Chiu P. Transannular [4+3] Cycloadditions of Macrocyclic Epoxy Ketones. Chemistry 2018; 24:2375-2378. [DOI: 10.1002/chem.201800019] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Indexed: 01/22/2023]
Affiliation(s)
- Diana Chan
- Department of Chemistry; State Key Laboratory of, Synthetic Chemistry; The University of Hong Kong; Pokfulam Road Hong Kong P. R. China
| | - Yu Chen
- Department of Chemistry; State Key Laboratory of, Synthetic Chemistry; The University of Hong Kong; Pokfulam Road Hong Kong P. R. China
| | - Kam-Hung Low
- Department of Chemistry; State Key Laboratory of, Synthetic Chemistry; The University of Hong Kong; Pokfulam Road Hong Kong P. R. China
| | - Pauline Chiu
- Department of Chemistry; State Key Laboratory of, Synthetic Chemistry; The University of Hong Kong; Pokfulam Road Hong Kong P. R. China
| |
Collapse
|
11
|
Heterocyclic Chiral Auxiliaries in Total Synthesis of Natural Products. TOPICS IN HETEROCYCLIC CHEMISTRY 2018. [DOI: 10.1007/7081_2018_26] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
|
12
|
Guttenberger N, Breinbauer R. C H and C C bond insertion reactions of diazo compounds into aldehydes. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.10.051] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
13
|
Cao YN, Zheng LL, Wang D, Liang XX, Gao F, Zhou XL. Recent advances in microtubule-stabilizing agents. Eur J Med Chem 2017; 143:806-828. [PMID: 29223097 DOI: 10.1016/j.ejmech.2017.11.062] [Citation(s) in RCA: 117] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Revised: 11/04/2017] [Accepted: 11/22/2017] [Indexed: 10/18/2022]
Abstract
Highly dynamic mitotic spindle microtubules are superb therapeutic targets for a group of chemically diverse and clinically successful anticancer drugs. Microtubule-targeted drugs disrupt microtubule dynamics in distinct ways, and they are primarily classified into two groups: microtubule destabilizing agents (MDAs), such as vinblastine, colchicine, and combretastatin-A4, and microtubule stabilizing agents (MSAs), such as paclitaxel and epothilones. Systematic discovery and development of new MSAs have been aided by extensive research on paclitaxel, yielding a large number of promising anticancer compounds. This review focuses on the natural sources, structural features, mechanisms of action, structure-activity relationship (SAR) and chemical synthesis of MSAs. These MSAs mainly include paclitaxel, taccalonolides, epothilones, FR182877 (cyclostreptin), dictyostatin, discodermolide, eleutherobin and sarcodictyins, zampanolide, dactylolide, laulimalides, peloruside and ceratamines from natural sources, as well as small molecular microtubule stabilizers obtained via chemical synthesis. Then we discuss the application prospect and development of these anticancer compounds.
Collapse
Affiliation(s)
- Ya-Nan Cao
- Agronomy College, Sichuan Agriculture University, Chengdu 611130, PR China; School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, PR China
| | - Ling-Li Zheng
- Department of Pharmacy, The First Affiliated Hospital of Chengdu Medical College, Chengdu 610500, PR China
| | - Dan Wang
- Division of Chemistry and Structural Biology, Institute for Molecular Bioscience, The University of Queensland, Brisbane, Qld 4072, Australia
| | - Xiao-Xia Liang
- Agronomy College, Sichuan Agriculture University, Chengdu 611130, PR China.
| | - Feng Gao
- Agronomy College, Sichuan Agriculture University, Chengdu 611130, PR China; School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, PR China.
| | - Xian-Li Zhou
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, PR China
| |
Collapse
|
14
|
|
15
|
Schweighauser L, Bodoky I, Kessler SN, Häussinger D, Donsbach C, Wegner HA. Bidentate Lewis Acid Catalyzed Domino Diels-Alder Reaction of Phthalazine for the Synthesis of Bridged Oligocyclic Tetrahydronaphthalenes. Org Lett 2016; 18:1330-3. [PMID: 26943286 DOI: 10.1021/acs.orglett.6b00276] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A domino process consisting of an inverse and a normal electron-demand Diels-Alder reaction is presented for the formation of bridged tri- and tetracyclic 1,2,3,4-tetrahydronaphthalenes catalyzed by a bidentate Lewis acid. The products were synthesized in a one-pot reaction from commercially available starting materials and contain up to six stereogenic centers. The tetrahydronaphthalenes were isolated as single diastereomers and are derivatives of phenylethylamine, which is well-known as a scaffold of amphetamine or dopamine.
Collapse
Affiliation(s)
- Luca Schweighauser
- Institute of Organic Chemistry, Justus Liebig University Giessen , Heinrich-Buff-Ring 17, 35392 Giessen, Germany
| | - Ina Bodoky
- Department of Chemistry, University of Basel , St. Johanns-Ring 19, 4056 Basel, Switzerland
| | - Simon N Kessler
- Department of Chemistry, University of Basel , St. Johanns-Ring 19, 4056 Basel, Switzerland
| | - Daniel Häussinger
- Department of Chemistry, University of Basel , St. Johanns-Ring 19, 4056 Basel, Switzerland
| | - Carsten Donsbach
- Fachbereich Chemie and Wissenschaftliches Zentrum für Materialwissenschaften (WZMW), Philipps-Universität Marburg , Hans-Meerwein-Strasse, 35043 Marburg, Germany
| | - Hermann A Wegner
- Institute of Organic Chemistry, Justus Liebig University Giessen , Heinrich-Buff-Ring 17, 35392 Giessen, Germany
| |
Collapse
|
16
|
Annand JR, Bruno PA, Mapp AK, Schindler CS. Synthesis and biological evaluation of pharbinilic acid and derivatives as NF-κB pathway inhibitors. Chem Commun (Camb) 2016; 51:8990-3. [PMID: 25932702 DOI: 10.1039/c5cc02918j] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A 7-step synthesis of pharbinilic acid, a member of the gibberellin family of natural products and the first naturally occurring allogibberic acid, is reported. An efficient decarboxylative aromatization reaction enables the synthesis of pharbinilic acid and related analogs for evaluation as modulators of NF-κB activity. Remarkably, one analog displays a 2 μM IC50 in an NF-κB activity assay and inhibits an endogenous NF-κB-regulated pathway.
Collapse
Affiliation(s)
- J R Annand
- Department of Chemistry, University of Michigan, 930 North University Ave., Ann Arbor, MI 48109, USA.
| | | | | | | |
Collapse
|
17
|
Yang YR, Zhang Q, Du FT, Ji JX. Fe powder catalyzed highly efficient synthesis of alkenyl halides via direct coupling of alcohols and alkynes with aqueous HX as exogenous halide sources. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.04.065] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
18
|
Becker D, Kazmaier U. Synthesis of Simplified Halogenated Chondramide Derivatives with Strong Cytostatic Properties. European J Org Chem 2015. [DOI: 10.1002/ejoc.201403577] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
19
|
|
20
|
Mak JYW, Pouwer RH, Williams CM. Naturstoffe mit Anti-Bredt- und Brückenkopf-Doppelbindung. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201400932] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
|
21
|
Mak JYW, Pouwer RH, Williams CM. Natural products with anti-Bredt and bridgehead double bonds. Angew Chem Int Ed Engl 2014; 53:13664-88. [PMID: 25399486 DOI: 10.1002/anie.201400932] [Citation(s) in RCA: 81] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2014] [Revised: 04/25/2014] [Indexed: 11/11/2022]
Abstract
Well over a hundred years ago, Professor Julius Bredt embarked on a career pursuing and critiquing bridged bicyclic systems that contained ring strain induced by the presence of a bridgehead olefin. These endeavors founded what we now know as Bredt's rule (Bredtsche Regel). Physical, theoretical, and synthetic organic chemists have intensely studied this premise, pushing the boundaries of such systems to arrive at a better understood physical phenomenon. Mother nature has also seen fit to construct molecules containing bridgehead double bonds that encompass Bredt's rule. For the first time, this topic is reviewed in a natural product context.
Collapse
Affiliation(s)
- Jeffrey Y W Mak
- Institute for Molecular Bioscience, The University of Queensland, Brisbane (Australia)
| | | | | |
Collapse
|
22
|
|
23
|
Wong J, Gan K, Chen HJ, Pullarkat SA. Evaluation of Palladacycles as a Non-Rhodium Based Alternative for the Asymmetric Conjugate 1,4-Addition of Arylboronic Acids to α,β-Unsaturated Enones. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201400473] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
24
|
A unified strategy for the synthesis of (−)-maoecrystal Z, (−)-trichorabdal A, and (−)-longikaurin E. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.03.071] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
25
|
Shen ZL, Peng Z, Yang CM, Helberg J, Mayer P, Marek I, Knochel P. Highly Diastereoselective Preparation of Aldol Products Using New Functionalized Allylic Aluminum Reagents. Org Lett 2014; 16:956-9. [DOI: 10.1021/ol403692k] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Zhi-Liang Shen
- Department
Chemie, Ludwig-Maximilians-Universität München, Butenandtstr. 5-13, 81377 München, Germany
| | - Zhihua Peng
- Department
Chemie, Ludwig-Maximilians-Universität München, Butenandtstr. 5-13, 81377 München, Germany
| | - Chun-Ming Yang
- Department
Chemie, Ludwig-Maximilians-Universität München, Butenandtstr. 5-13, 81377 München, Germany
| | - Julian Helberg
- Department
Chemie, Ludwig-Maximilians-Universität München, Butenandtstr. 5-13, 81377 München, Germany
| | - Peter Mayer
- Department
Chemie, Ludwig-Maximilians-Universität München, Butenandtstr. 5-13, 81377 München, Germany
| | - Ilan Marek
- The Mallat
Family
Laboratory of Organic Chemistry, Schulich Faculty of Chemistry and
Lise Meitner-Minerva Center for Computational Quantum Chemistry, Technion-Israel Institute of Technology, Technion City, Haifa 32000, Israel
| | - Paul Knochel
- Department
Chemie, Ludwig-Maximilians-Universität München, Butenandtstr. 5-13, 81377 München, Germany
| |
Collapse
|
26
|
Yeoman JTS, Mak VW, Reisman SE. A Unified Strategy to ent-Kauranoid Natural Products: Total Syntheses of (−)-Trichorabdal A and (−)-Longikaurin E. J Am Chem Soc 2013; 135:11764-7. [DOI: 10.1021/ja406599a] [Citation(s) in RCA: 100] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- John T. S. Yeoman
- The Warren and Katharine Schlinger Laboratory for Chemistry
and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California
91125, United States
| | - Victor W. Mak
- The Warren and Katharine Schlinger Laboratory for Chemistry
and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California
91125, United States
| | - Sarah E. Reisman
- The Warren and Katharine Schlinger Laboratory for Chemistry
and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California
91125, United States
| |
Collapse
|
27
|
Catino AJ, Sherlock A, Shieh P, Wzorek JS, Evans DA. Approach to the Tricyclic Core of the Tigliane–Daphnane Diterpenes. Concerning the Utility of Transannular Aldol Additions. Org Lett 2013; 15:3330-3. [DOI: 10.1021/ol401367h] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Arthur J. Catino
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts 02138, United States
| | - Alexandra Sherlock
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts 02138, United States
| | - Peyton Shieh
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts 02138, United States
| | - Joseph S. Wzorek
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts 02138, United States
| | - David A. Evans
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts 02138, United States
| |
Collapse
|
28
|
Amatore C, Le Duc G, Jutand A. Mechanism of Palladium-Catalyzed Suzuki-Miyaura Reactions: Multiple and Antagonistic Roles of Anionic “Bases” and Their Countercations. Chemistry 2013; 19:10082-93. [DOI: 10.1002/chem.201300177] [Citation(s) in RCA: 173] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2013] [Indexed: 11/06/2022]
|
29
|
Yuan C, Du B, Yang L, Liu B. Bioinspired total synthesis of bolivianine: a Diels-Alder/intramolecular hetero-Diels-Alder cascade approach. J Am Chem Soc 2013; 135:9291-4. [PMID: 23713856 DOI: 10.1021/ja4040335] [Citation(s) in RCA: 81] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We report the first total synthesis of bolivanine in a 14-step pathway involving the synthesis of onoseriolide. Our synthesis features a palladium-catalyzed intramolecular cyclopropanation involving an allylic metal carbene and a Diels-Alder/intramolecular hetero-Diels-Alder cascade, allowing the single-step assembly of a tricyclic system with proper configuration. The synthetic efforts validate our modified biogenetic hypothesis and allow us to confirm the absolute configuration of bolivianine.
Collapse
Affiliation(s)
- Changchun Yuan
- Key Laboratory of Green Chemistry & Technology of the Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, China
| | | | | | | |
Collapse
|
30
|
Abdelkafi H, Evanno L, Deville A, Dubost L, Nay B. Reactivity of cyclohexene epoxides toward intramolecular acid-catalyzed cyclizations for the synthesis of naturally occurring cage architectures. CR CHIM 2013. [DOI: 10.1016/j.crci.2012.09.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
31
|
Kuranaga T, Sesoko Y, Sakata K, Maeda N, Hayata A, Inoue M. Total Synthesis and Complete Structural Assignment of Yaku’amide A. J Am Chem Soc 2013; 135:5467-74. [DOI: 10.1021/ja401457h] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Takefumi Kuranaga
- Graduate
School of Pharmaceutical Sciences, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033,
Japan
| | - Yusuke Sesoko
- Graduate
School of Pharmaceutical Sciences, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033,
Japan
| | - Komei Sakata
- Graduate
School of Pharmaceutical Sciences, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033,
Japan
| | - Naoya Maeda
- Graduate
School of Pharmaceutical Sciences, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033,
Japan
| | - Atsushi Hayata
- Graduate
School of Pharmaceutical Sciences, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033,
Japan
| | - Masayuki Inoue
- Graduate
School of Pharmaceutical Sciences, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033,
Japan
| |
Collapse
|
32
|
Wzorek JS, Knöpfel TF, Sapountzis I, Evans DA. A macrocyclic approach to tetracycline natural products. Investigation of transannular alkylations and Michael additions. Org Lett 2012; 14:5840-3. [PMID: 23146096 DOI: 10.1021/ol302691j] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A new approach to the tetracycline core structure is presented. The pivotal intermediate is identified as macrocycle III. The two interior bonds (C4a-C12a and C5a-C11a) are to be constructed through sequential transannular Michael additions (III-II) and compression-promoted transannular isoxazole alkylations from intermediate II.
Collapse
Affiliation(s)
- Joseph S Wzorek
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138, USA
| | | | | | | |
Collapse
|
33
|
Cook C, Liron F, Guinchard X, Roulland E. Study of the total synthesis of (-)-exiguolide. J Org Chem 2012; 77:6728-42. [PMID: 22849583 DOI: 10.1021/jo301066p] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
In this article, we disclose the various routes and strategies we had to explore before finally achieving the total synthesis of (-)-exiguolide ((-)-1). Two first types of approaches were set, both relying on the Trost's domino ene-yne coupling/oxa-Michael reaction that we choose for its ability to control the geometry of the methylacrylate-bearing tetrahydropyrane ring B. In our first approach, we expected to assemble the two main fragments (C14-C21 and C1-C13) by creating the C13-C14 bond through a palladium(0)-catalyzed cross-coupling, but this step failed, unfortunately. In the second approach, which was more linear, we created the C16-C17 bond through condensation of a lithium acetylide on a Weinreb amide, and we assembled the C1-C5 and C6-C21 subunits through Trost's domino ene-yne coupling/oxa-Michael reaction. These two approaches served us to design an ameliorated third strategy, which finally led to the total synthesis of (-)-exiguolide.
Collapse
Affiliation(s)
- Cyril Cook
- Centre de Recherche de Gif, Institut de Chimie des Substances Naturelle, CNRS, Avenue de la Terrasse, 91198, Gif-sur-Yvette, France
| | | | | | | |
Collapse
|
34
|
Giorgi G, López-Alvarado P, Menéndez JC. A one-pot sequence for the efficient synthesis of highly functionalized macrocarbocycles or bridged 2,8-dioxabicyclo[3.2.1]octanes from 1-nitrobicyclic compounds. Org Biomol Chem 2012; 10:5131-6. [PMID: 22641240 DOI: 10.1039/c2ob25274k] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The reaction of 1-nitrobicyclo[n.3.1]alkane-(6 + n)ones with sodium borohydride followed by acidic workup led to ring opening via a one-pot sequence comprising the retro-Dieckmann-type opening of the α-nitroketone structural fragment, followed by aldehyde reduction and a final Nef reaction, leading to highly functionalized 12 to 14-membered carbocyclic ketones bearing three stereocenters, which are adjacent in some of the compounds. The reactions starting from 1-nitrobicyclo[9.3.1]pentadecan-15-ones could be adjusted to give macrocyclic 2,8-dioxabicyclo[3.2.1]octanes containing an additional bridge by diastereoselective formation of a third ring and a fourth stereocenter through acid-promoted intramolecular ketal formation. This is a very interesting ring system related to the core of the zaragozic acid family of natural products.
Collapse
Affiliation(s)
- Giorgio Giorgi
- Departamento de Química Orgánica y Farmacéutica, Facultad de Farmacia, Universidad Complutense, 28040 Madrid, Spain
| | | | | |
Collapse
|
35
|
Amatore C, Jutand A, Le Duc G. Mechanistic origin of antagonist effects of usual anionic bases (OH-, CO3(2-)) as modulated by their countercations (Na+, Cs+, K+) in palladium-catalyzed Suzuki-Miyaura reactions. Chemistry 2012; 18:6616-25. [PMID: 22511514 DOI: 10.1002/chem.201200516] [Citation(s) in RCA: 107] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2012] [Indexed: 11/11/2022]
Abstract
The mechanism of the reaction of trans-ArPdBrL(2) (Ar=p-Z-C(6)H(4), Z=CN, H; L=PPh(3)) with Ar'B(OH)(2) (Ar'=p-Z'-C(6)H(4), Z'=H, CN, MeO), which is a key step in the Suzuki-Miyaura process, has been established in N,N-dimethylformamide (DMF) with two bases, acetate (nBu(4)NOAc) or carbonate (Cs(2)CO(3)) and compared with that of hydroxide (nBu(4)NOH), reported in our previous work. As anionic bases are inevitably introduced with a countercation M(+) (e.g., M(+)OH(-)), the role of cations in the transmetalation/reductive elimination has been first investigated. Cations M(+) (Na(+), Cs(+), K(+)) are not innocent since they induce an unexpected decelerating effect in the transmetalation via their complexation to the OH ligand in the reactive ArPd(OH)L(2), partly inhibiting its transmetalation with Ar'B(OH)(2). A decreasing reactivity order is observed when M(+) is associated with OH(-): nBu(4)N(+) > K(+) > Cs(+) > Na(+). Acetates lead to the formation of trans-ArPd(OAc)L(2), which does not undergo transmetalation with Ar'B(OH)(2). This explains why acetates are not used as bases in Suzuki-Miyaura reactions that involve Ar'B(OH)(2). Carbonates (Cs(2)CO(3)) give rise to slower reactions than those performed from nBu(4)NOH at the same concentration, even if the reactions are accelerated in the presence of water due to the generation of OH(-). The mechanism of the reaction with carbonates is then similar to that established for nBu(4)NOH, involving ArPd(OH)L(2) in the transmetalation with Ar'B(OH)(2). Due to the low concentration of OH(-) generated from CO(3)(2-) in water, both transmetalation and reductive elimination result slower than those performed from nBu(4)NOH at equal concentrations as Cs(2)CO(3). Therefore, the overall reactivity is finely tuned by the concentration of the common base OH(-) and the ratio [OH(-)]/[Ar'B(OH)(2)]. Hence, the anionic base (pure OH(-) or OH(-) generated from CO(3)(2-)) associated with its countercation (Na(+), Cs(+), K(+)) plays four antagonist kinetic roles: acceleration of the transmetalation by formation of the reactive ArPd(OH)L(2), acceleration of the reductive elimination, deceleration of the transmetalation by formation of unreactive Ar'B(OH)(3)(-) and by complexation of ArPd(OH)L(2) by M(+).
Collapse
Affiliation(s)
- Christian Amatore
- Département de Chimie, Ecole Normale Supérieure, UMR CNRS-ENS-UPMC 8640, 24 Rue Lhomond, 75231 Paris Cedex 5, France.
| | | | | |
Collapse
|
36
|
Kobayakawa Y, Mori Y, Okajima H, Terada Y, Nakada M. Asymmetric and Highly Stereoselective Synthesis of the DEF-Ring Moiety of (−)-FR182877 and Its Derivative Inducing Mitotic Arrest. Org Lett 2012; 14:2086-9. [DOI: 10.1021/ol300615w] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yu Kobayakawa
- Department of Chemistry and Biochemistry, School of Advanced Science and Engineering, Waseda University, 3-4-1 Ohkubo, Shinjuku-ku, Tokyo 169-8555, Japan
| | - Yusuke Mori
- Department of Chemistry and Biochemistry, School of Advanced Science and Engineering, Waseda University, 3-4-1 Ohkubo, Shinjuku-ku, Tokyo 169-8555, Japan
| | - Hideki Okajima
- Department of Chemistry and Biochemistry, School of Advanced Science and Engineering, Waseda University, 3-4-1 Ohkubo, Shinjuku-ku, Tokyo 169-8555, Japan
| | - Yasuhiko Terada
- Department of Chemistry and Biochemistry, School of Advanced Science and Engineering, Waseda University, 3-4-1 Ohkubo, Shinjuku-ku, Tokyo 169-8555, Japan
| | - Masahisa Nakada
- Department of Chemistry and Biochemistry, School of Advanced Science and Engineering, Waseda University, 3-4-1 Ohkubo, Shinjuku-ku, Tokyo 169-8555, Japan
| |
Collapse
|
37
|
Hopf H, Sherburn MS. Dendralene auf dem Vormarsch: kreuzkonjugierte Oligoene ermöglichen den schnellen Aufbau molekularer Komplexität. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201102987] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
38
|
Hopf H, Sherburn MS. Dendralenes Branch Out: Cross-Conjugated Oligoenes Allow the Rapid Generation of Molecular Complexity. Angew Chem Int Ed Engl 2012; 51:2298-338. [DOI: 10.1002/anie.201102987] [Citation(s) in RCA: 134] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2011] [Revised: 09/12/2011] [Indexed: 11/11/2022]
|
39
|
Smith AB, Dong S, Fox RJ, Brenneman JB, Vanecko JA, Maegawa T. (+)-Sorangicin A: evolution of a viable synthetic strategy. Tetrahedron 2011; 67:9809-9828. [PMID: 22247573 PMCID: PMC3254116 DOI: 10.1016/j.tet.2011.09.035] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
An effective, asymmetric total synthesis of the antibiotic (+)-sorangicin A (1) has been achieved. Central to this venture was the development of first and second generation syntheses of the signature dioxabicyclo[3.2.1]octane core, the first featuring chemo- and stereoselective epoxide ring openings facilitated by a Co(2)(CO)(6)-alkyne complex, the second involving a KHMDS-promoted epoxide ring formation/opening cascade. Additional highlights include effective construction of the dihydro- and tetrahydropyran ring systems, respectively via a stereoselective conjugate addition/α-oxygenation protocol and a thioketalization/hydrostannane reduction sequence. Late-stage achievements entailed two Julia-Kociénski olefinations to unite three advanced fragments with high E-stereoselectivity, followed by a modified Stille protocol to introduce the Z,Z,E trienoate moiety, thereby completing the carbon skeleton. Mukaiyama macrolactonization, followed by carefully orchestrated Lewis and protic acid-promoted deprotections that suppressed isomerization and/or destruction of the sensitive (Z,Z,E)-trienoate linkage completed the first, and to date only, total synthesis of (+)-sorangicin A (1).
Collapse
Affiliation(s)
- Amos B. Smith
- Department of Chemistry, Laboratory for Research on the Structure of Matter, and Monell Chemical Senses Center, University of Pennsylvania, Philadelphia, PA 19104, United States
| | - Shuzhi Dong
- Department of Chemistry, Laboratory for Research on the Structure of Matter, and Monell Chemical Senses Center, University of Pennsylvania, Philadelphia, PA 19104, United States
| | - Richard J Fox
- Department of Chemistry, Laboratory for Research on the Structure of Matter, and Monell Chemical Senses Center, University of Pennsylvania, Philadelphia, PA 19104, United States
| | - Jehrod B. Brenneman
- Department of Chemistry, Laboratory for Research on the Structure of Matter, and Monell Chemical Senses Center, University of Pennsylvania, Philadelphia, PA 19104, United States
| | - John A. Vanecko
- Department of Chemistry, Laboratory for Research on the Structure of Matter, and Monell Chemical Senses Center, University of Pennsylvania, Philadelphia, PA 19104, United States
| | - Tomohiro Maegawa
- Department of Chemistry, Laboratory for Research on the Structure of Matter, and Monell Chemical Senses Center, University of Pennsylvania, Philadelphia, PA 19104, United States
| |
Collapse
|
40
|
Pellicena M, Krämer K, Romea P, Urpí F. Total synthesis of (+)-herboxidiene from two chiral lactate-derived ketones. Org Lett 2011; 13:5350-3. [PMID: 21913648 DOI: 10.1021/ol202210k] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A substrate-controlled synthesis of (+)-herboxidiene from two lactate-derived chiral ketones is described. Remarkably, most of the carbon backbone was constructed through highly stereoselective titanium-mediated aldol reactions and an Ireland-Claisen rearrangement. Furthermore, an oxa-Michael cyclization and a high-yield Suzuki coupling were used to assemble the pyran ring and the diene moiety respectively.
Collapse
Affiliation(s)
- Miquel Pellicena
- Departament de Química Orgànica, Universitat de Barcelona, Carrer Martí i Franqués 1-11, 08028 Barcelona, Catalonia, Spain
| | | | | | | |
Collapse
|
41
|
Partyka DV. Transmetalation of Unsaturated Carbon Nucleophiles from Boron-Containing Species to the Mid to Late d-Block Metals of Relevance to Catalytic C−X Coupling Reactions (X = C, F, N, O, Pb, S, Se, Te). Chem Rev 2011; 111:1529-95. [DOI: 10.1021/cr1002276] [Citation(s) in RCA: 251] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- David V. Partyka
- Creative Chemistry LLC, 2074 Adelbert Road, Cleveland, Ohio 44106, United States
| |
Collapse
|
42
|
Tanaka Suzuki N, Suzuki T, Matsumura T, Hosoya Y, Nakazato T, Nakada M. Enantioselective Total Synthesis of (-)-FR182877. J SYN ORG CHEM JPN 2011. [DOI: 10.5059/yukigoseikyokaishi.69.646] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
43
|
|
44
|
Tadano KI. Challenges to the Synthesis of Structurally Unique Cyclic Skeletons and Application to Biologically Intriguing Natural Product Synthesis. J SYN ORG CHEM JPN 2011. [DOI: 10.5059/yukigoseikyokaishi.69.4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
45
|
Jung ME, Zhang TH, Lui RM, Gutierrez O, Houk KN. Synthesis of a trans,syn,trans-Dodecahydrophenanthrene via a Bicyclic Transannular Diels−Alder Reaction: Intermediate for the Synthesis of Fusidic Acid. J Org Chem 2010; 75:6933-40. [DOI: 10.1021/jo101533h] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Michael E. Jung
- Department of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles E. Young Drive, Los Angeles, California 90095-1569
| | - Ting-Hu Zhang
- Department of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles E. Young Drive, Los Angeles, California 90095-1569
| | - Rebecca M. Lui
- Department of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles E. Young Drive, Los Angeles, California 90095-1569
| | - Osvaldo Gutierrez
- Department of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles E. Young Drive, Los Angeles, California 90095-1569
| | - K. N. Houk
- Department of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles E. Young Drive, Los Angeles, California 90095-1569
| |
Collapse
|
46
|
Tsutsumi R, Kuranaga T, Wright JL, Baden DG, Ito E, Satake M, Tachibana K. An improved synthesis of (−)-brevisamide, a marine monocyclic ether amide of dinoflagellate origin. Tetrahedron 2010. [DOI: 10.1016/j.tet.2010.06.074] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
47
|
Sarabia F, Martín-Gálvez F, Chammaa S, Martín-Ortiz L, Sánchez-Ruiz A. Chiral Sulfur Ylides for the Synthesis of Bengamide E and Analogues. J Org Chem 2010; 75:5526-32. [DOI: 10.1021/jo100696w] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Francisco Sarabia
- Department of Organic Chemistry, Faculty of Sciences, University of Malaga, Campus de Teatinos s/n 29071, Malaga, Spain
| | - Francisca Martín-Gálvez
- Department of Organic Chemistry, Faculty of Sciences, University of Malaga, Campus de Teatinos s/n 29071, Malaga, Spain
| | - Samy Chammaa
- Department of Organic Chemistry, Faculty of Sciences, University of Malaga, Campus de Teatinos s/n 29071, Malaga, Spain
| | - Laura Martín-Ortiz
- Department of Organic Chemistry, Faculty of Sciences, University of Malaga, Campus de Teatinos s/n 29071, Malaga, Spain
| | - Antonio Sánchez-Ruiz
- Department of Organic Chemistry, Faculty of Sciences, University of Malaga, Campus de Teatinos s/n 29071, Malaga, Spain
| |
Collapse
|
48
|
Smith AB, Dong S, Brenneman JB, Fox RJ. Total synthesis of (+)-sorangicin A. J Am Chem Soc 2009; 131:12109-11. [PMID: 19663510 DOI: 10.1021/ja906115a] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The final synthetic challenges associated with (+)-sorangicin A have been overcome, thus leading to the first total synthesis of this complex macrolide antibiotic. Highlights of the highly convergent synthesis include two Julia-Kociénski olefinations to unite three advanced fragments with high E-stereoselectivity. Critical to the final-stage success was the use of a carefully defined Stille coupling and a Mukaiyama macrolactonization as well as Lewis and protic acid-promoted deprotections carefully designed to suppress E/Z isomerization and/or destruction of the delicate (Z,Z,E)-trienoate linkage.
Collapse
Affiliation(s)
- Amos B Smith
- Department of Chemistry, Laboratory for Research on the Structure of Matter, and Monell Chemical Senses Center, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA.
| | | | | | | |
Collapse
|
49
|
Abstract
We describe the first total synthesis of (-)-himandrine, a member of the class II galbulimima alkaloids. Noteworthy features of this chemistry include a diastereoselective Diels-Alder reaction in the rapid synthesis of the tricycle ABC-ring system in an enantiomerically enriched form, the use of a formal [3+3] annulation strategy to secure the CDE-ring system with complete diastereoselection, and successful implementation of our biogenetically inspired oxidative spirocyclization of an advanced intermediate. The successful and direct late-stage formation of the F-ring in the hexacyclic core of himandrine drew on the power of biogenetic considerations and fully utilized the inherent chemistry of a plausible biosynthetic intermediate.
Collapse
Affiliation(s)
- Mohammad Movassaghi
- Massachusetts Institute of Technology, Department of Chemistry, Cambridge, Massachusetts 02139, USA.
| | | | | |
Collapse
|
50
|
|