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Andler O, Kazmaier U. A Straightforward Synthesis of Polyketides via Ester Dienolate Matteson Homologation. Chemistry 2021; 27:949-953. [PMID: 33089903 PMCID: PMC7839490 DOI: 10.1002/chem.202004650] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Indexed: 12/22/2022]
Abstract
Application of ester dienolates as nucleophiles in Matteson homologations allows for the stereoselective synthesis of highly substituted α,β-unsaturated δ-hydroxy carboxyl acids, structural motifs widespread found in polyketide natural products. The protocol is rather flexible and permits the introduction of substituents and functionalities also at those positions which are not accessible by the commonly used aldol reaction. Therefore, this ester dienolate Matteson approach is an interesting alternative to the "classical" polyketide syntheses.
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Affiliation(s)
- Oliver Andler
- Institut für Organische ChemieUniversität des SaarlandesCampus C4.266123SaarbrückenGermany
| | - Uli Kazmaier
- Institut für Organische ChemieUniversität des SaarlandesCampus C4.266123SaarbrückenGermany
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2
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Heravi MM, Mohammadkhani L. Recent applications of Stille reaction in total synthesis of natural products: An update. J Organomet Chem 2018. [DOI: 10.1016/j.jorganchem.2018.05.018] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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3
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Wang LL, Candito D, Dräger G, Kirschning A. Synthetic Studies Probing Elansolid Biosynthesis: A para
-Quinone-Methide-Triggered Intramolecular Diels-Alder Reaction. European J Org Chem 2017. [DOI: 10.1002/ejoc.201701125] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Liang-Liang Wang
- Institute of Organic Chemistry and Center of Biomolecular Drug Research (BMWZ); Leibniz Universität Hannover; Schneiderberg 1B 30167 Hannover Germany
| | - David Candito
- Institute of Organic Chemistry and Center of Biomolecular Drug Research (BMWZ); Leibniz Universität Hannover; Schneiderberg 1B 30167 Hannover Germany
| | - Gerald Dräger
- Institute of Organic Chemistry and Center of Biomolecular Drug Research (BMWZ); Leibniz Universität Hannover; Schneiderberg 1B 30167 Hannover Germany
| | - Andreas Kirschning
- Institute of Organic Chemistry and Center of Biomolecular Drug Research (BMWZ); Leibniz Universität Hannover; Schneiderberg 1B 30167 Hannover Germany
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Wang LL, Kirschning A. Total synthesis of elansolids B1 and B2. Beilstein J Org Chem 2017; 13:1280-1287. [PMID: 28694871 PMCID: PMC5496564 DOI: 10.3762/bjoc.13.124] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2017] [Accepted: 05/17/2017] [Indexed: 11/23/2022] Open
Abstract
The elansolids A1-A3, B1, and B2 are secondary metabolites formed by the gliding bacterium Chitinophaga sancti. They show antibacterial activity against Gram-positive bacteria. A second generation total synthesis of the antibiotic elansolid B1 (2) and the first synthesis of elansolid B2 (3) are reported. In contrast to previous work, the (Z,E,Z)-triene at C10-C15 was assembled by using an optimized C-C cross-coupling sequence with a Suzuki cross-coupling reaction as key step.
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Affiliation(s)
- Liang-Liang Wang
- Institute of Organic Chemistry and Center of Biomolecular Drug Research (BMWZ), Leibniz University Hannover, Schneiderberg 1b, 30167 Hannover, Germany
| | - Andreas Kirschning
- Institute of Organic Chemistry and Center of Biomolecular Drug Research (BMWZ), Leibniz University Hannover, Schneiderberg 1b, 30167 Hannover, Germany
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Wang LL, Candito D, Dräger G, Herrmann J, Müller R, Kirschning A. Harnessing ap-Quinone Methide Intermediate in the Biomimetic Total Synthesis of the Highly Active Antibiotic 20-Deoxy-Elansolid B1. Chemistry 2017; 23:5291-5298. [DOI: 10.1002/chem.201605884] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2016] [Indexed: 11/11/2022]
Affiliation(s)
- Liang Liang Wang
- Institut für Organische Chemie und Biomolekulares Wirkstoffzentrum (BMWZ); Leibniz Universität Hannover; Schneiderberg 1B 30167 Hannover Germany
| | - David Candito
- Institut für Organische Chemie und Biomolekulares Wirkstoffzentrum (BMWZ); Leibniz Universität Hannover; Schneiderberg 1B 30167 Hannover Germany
| | - Gerald Dräger
- Institut für Organische Chemie und Biomolekulares Wirkstoffzentrum (BMWZ); Leibniz Universität Hannover; Schneiderberg 1B 30167 Hannover Germany
| | - Jennifer Herrmann
- Helmholtz Zentrum für Infektionsforschung; Helmholtz Institut für Pharmazeutische Forschung Saarland und Pharmazeutische Biotechnologie; Universität des Saarlandes; Campus E 8.1 66123 Saarbrücken Germany
| | - Rolf Müller
- Helmholtz Zentrum für Infektionsforschung; Helmholtz Institut für Pharmazeutische Forschung Saarland und Pharmazeutische Biotechnologie; Universität des Saarlandes; Campus E 8.1 66123 Saarbrücken Germany
| | - Andreas Kirschning
- Institut für Organische Chemie und Biomolekulares Wirkstoffzentrum (BMWZ); Leibniz Universität Hannover; Schneiderberg 1B 30167 Hannover Germany
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6
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Groenhagen U, Leandrini De Oliveira AL, Fielding E, Moore BS, Schulz S. Coupled Biosynthesis of Volatiles and Salinosporamide A in Salinispora tropica. Chembiochem 2016; 17:1978-1985. [PMID: 27490971 DOI: 10.1002/cbic.201600388] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2016] [Indexed: 02/06/2023]
Abstract
Terrestrial bacteria, especially actinomycetes, are known to be prolific producers of volatile compounds. We show here that bacteria from ocean sediments can also release complex bouquets of volatiles. The actinomycete Salinispora tropica produces cyclohexenyl compounds not previously known in nature, such as methyl cyclohex-2-ene-1-carboxylate (9), methyl 2-(cyclohex-2-en-1-yl)acetate (10), methyl (E/Z)-2-(cyclohex-2-en-1-ylidene)acetate (11/12), and related alcohols 8 and 13. These compounds were identified by GC/MS and confirmed by synthesis. In addition, rare spiroacetals, aromatic compounds, short-chain acids and esters, alcohols, and various cyclic compounds were produced by the bacteria. The biosynthesis of the cyclohexenyl compounds is closely coupled to that of cyclohexenylalanine (4), a building block of salinosporamide A, a proteasome inhibitor produced by S. tropica. Analysis of S. tropica strains that harbor knockouts of the salinosporamide biosynthetic genes salX and salD, coupled with feeding experiments, revealed that 3-(cyclohex-2-en-1-yl)-2-oxopropanoic acid (60) and 3-(cyclohex-2-en-1-ylidene)-2-oxopropanoic acid (isomers 61 and 62) are important intermediates in the biosynthesis of salinosporamide A, 4, and 8-13.
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Affiliation(s)
- Ulrike Groenhagen
- Institute of Organic Chemistry, Technische Universität Braunschweig, Hagenring 30, 38106, Braunschweig, Germany
| | - Ana Ligia Leandrini De Oliveira
- Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, University of California San Diego, 9500 Gilman Drive, La Jolla, CA, 92093, USA
| | - Elisha Fielding
- Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, University of California San Diego, 9500 Gilman Drive, La Jolla, CA, 92093, USA
| | - Bradley S Moore
- Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, University of California San Diego, 9500 Gilman Drive, La Jolla, CA, 92093, USA.,Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, 9500 Gilman Drive, La Jolla, CA, 92093, USA
| | - Stefan Schulz
- Institute of Organic Chemistry, Technische Universität Braunschweig, Hagenring 30, 38106, Braunschweig, Germany.
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Fu P, Legako A, La S, MacMillan JB. Discovery, Characterization, and Analogue Synthesis of Bohemamine Dimers Generated by Non-enzymatic Biosynthesis. Chemistry 2016; 22:3491-3495. [PMID: 26834079 DOI: 10.1002/chem.201600024] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Indexed: 11/09/2022]
Abstract
Dibohemamines A-C (5-7), three new dimeric bohemamine analogues dimerized through a methylene group, were isolated from a marine-derived Streptomyces spinoverrucosus. The structures determined by spectroscopic analysis were confirmed through the semi-synthetic derivatization of monomeric bohemamines and formaldehyde. These reactions, which could occur under mild conditions, together with the detection of formaldehyde in the culture, revealed that this dimerization is a non-enzymatic process. In addition to the unique dimerization of the dibohemamines, dibohemamines B and C were found to have nm cytotoxicity against the non-small cell-lung cancer cell line A549. In view of the potent cytotoxicity of compounds 6 and 7, a small library of bohemamine analogues was generated for biological evaluation by utilizing a series of aryl and alkyl aldehydes.
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Affiliation(s)
- Peng Fu
- Department of Biochemistry, University of Texas Southwestern Medical Center at Dallas, Dallas, Texas, 75390, USA
| | - Aaron Legako
- Department of Biochemistry, University of Texas Southwestern Medical Center at Dallas, Dallas, Texas, 75390, USA
| | - Scott La
- Department of Biochemistry, University of Texas Southwestern Medical Center at Dallas, Dallas, Texas, 75390, USA
| | - John B MacMillan
- Department of Biochemistry, University of Texas Southwestern Medical Center at Dallas, Dallas, Texas, 75390, USA.
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Weber A, Dehn R, Schläger N, Dieter B, Kirschning A. Total Synthesis of the Antibiotic Elansolid B1. Org Lett 2014; 16:568-71. [DOI: 10.1021/ol403441c] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Arne Weber
- Institut für Organische
Chemie und Biomolekulares Wirkstoffzentrum (BMWZ), Leibniz Universität Hannover, Schneiderberg 1B, 30167 Hannover, Germany
| | - Richard Dehn
- Institut für Organische
Chemie und Biomolekulares Wirkstoffzentrum (BMWZ), Leibniz Universität Hannover, Schneiderberg 1B, 30167 Hannover, Germany
| | - Nadin Schläger
- Institut für Organische
Chemie und Biomolekulares Wirkstoffzentrum (BMWZ), Leibniz Universität Hannover, Schneiderberg 1B, 30167 Hannover, Germany
| | - Bastian Dieter
- Institut für Organische
Chemie und Biomolekulares Wirkstoffzentrum (BMWZ), Leibniz Universität Hannover, Schneiderberg 1B, 30167 Hannover, Germany
| | - Andreas Kirschning
- Institut für Organische
Chemie und Biomolekulares Wirkstoffzentrum (BMWZ), Leibniz Universität Hannover, Schneiderberg 1B, 30167 Hannover, Germany
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Schläger N, Kirschning A. Substrate-controlled stereoselectivity in the Yamamoto aldol reaction. Org Biomol Chem 2013; 10:7721-9. [PMID: 22898755 DOI: 10.1039/c2ob26185e] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The Yamamoto aldol reaction is a vinylogous aldol reaction that relies on bulky aluminium-based Lewis acids. These activate both the aldehyde as well as become part of the enolate moiety. The report discloses the first detailed study on the substrate-controlled Yamamoto aldol reaction in which 2,3-syn and 2,3-anti disubstituted aldehydes serve as the stereodirecting elements. The "size" of the substituent in the β-position strongly determines the facial selectivity of enolate addition to the aldehyde. Large substituents favour formation of 1,3-syn diols while slim alkynyl groups preferentially lead to 1,3-anti products.
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Affiliation(s)
- Nadin Schläger
- Institute of Organic Chemistry and Center of Biomolecular Drug Research (BMWZ), Schneiderberg 1b, 30167 Hannover
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Steinmetz H, Zander W, Shushni MAM, Jansen R, Gerth K, Dehn R, Dräger G, Kirschning A, Müller R. Precursor-Directed Syntheses and Biological Evaluation of New Elansolid Derivatives. Chembiochem 2012; 13:1813-7. [DOI: 10.1002/cbic.201200228] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2012] [Indexed: 11/11/2022]
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Jansen R, Gerth K, Steinmetz H, Reinecke S, Kessler W, Kirschning A, Müller R. Elansolid A3, a Unique
p
‐Quinone Methide Antibiotic from
Chitinophaga sancti. Chemistry 2011; 17:7739-44. [DOI: 10.1002/chem.201100457] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2011] [Indexed: 11/10/2022]
Affiliation(s)
- Rolf Jansen
- Helmholtz Centre for Infection Research, Research Group Microbial Drugs, Inhoffenstr. 7, 38124 Braunschweig (Germany), Fax: (+49) 531‐61819499
| | - Klaus Gerth
- Helmholtz Centre for Infection Research, Research Group Microbial Drugs, Inhoffenstr. 7, 38124 Braunschweig (Germany), Fax: (+49) 531‐61819499
| | - Heinrich Steinmetz
- Helmholtz Centre for Infection Research, Research Group Microbial Drugs, Inhoffenstr. 7, 38124 Braunschweig (Germany), Fax: (+49) 531‐61819499
| | - Silke Reinecke
- Helmholtz Centre for Infection Research, Research Group Microbial Drugs, Inhoffenstr. 7, 38124 Braunschweig (Germany), Fax: (+49) 531‐61819499
| | - Wolfgang Kessler
- Helmholtz Centre for Infection Research, Research Group Microbial Drugs, Inhoffenstr. 7, 38124 Braunschweig (Germany), Fax: (+49) 531‐61819499
| | - Andreas Kirschning
- Institut für Organische Chemie und Biomolekulares Wirkstoffzentrum (BMWZ), Leibniz Universität Hannover, Schneiderberg 1B, 30167 Hannover (Germany)
| | - Rolf Müller
- Helmholtz Centre for Infection Research, Research Group Microbial Drugs, Inhoffenstr. 7, 38124 Braunschweig (Germany), Fax: (+49) 531‐61819499
- Helmholtz Institute for Pharmaceutical Sciences Saarland (HIPS), Saarland University, P.O.Box 151150, 66041 Saarbrücken (Germany), Fax: (+49) 681‐30270202
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Dehn R, Katsuyama Y, Weber A, Gerth K, Jansen R, Steinmetz H, Höfle G, Müller R, Kirschning A. Molecular Basis of Elansolid Biosynthesis: Evidence for an Unprecedented Quinone Methide Initiated Intramolecular Diels-Alder Cycloaddition/Macrolactonization. Angew Chem Int Ed Engl 2011; 50:3882-7. [DOI: 10.1002/anie.201006880] [Citation(s) in RCA: 72] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2010] [Revised: 01/06/2011] [Indexed: 11/09/2022]
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Dehn R, Katsuyama Y, Weber A, Gerth K, Jansen R, Steinmetz H, Höfle G, Müller R, Kirschning A. Molekulare Grundlage für die Biosynthese von Elansolid: Beweise für eine einzigartige, durch ein Chinonmethid initiierte intramolekulare Diels-Alder-Cycloaddition/Makrolactonisierung. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201006880] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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DECHEMA-Preis: R. Müller / CRSI-Medaille: A. Sen / Medaille am Violetten Band: K. Suzuki / Ehrendoktorwürde: H. Schwarz / Bayer Science Award: N. Cramer. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201007707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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DECHEMA Prize: R. Müller / CRSI Medal: A. Sen / Purple Ribbon Award: K. Suzuki / Honorary Doctorate: H. Schwarz / Bayer Science Award: N. Cramer. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/anie.201007707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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