1
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Schrempp M, Wagner R, Gleich H, Gansäuer A, Menche D. Quaternary Carbon Synthesis by Titanocene Catalyzed Radical Allyl Transfer on Epoxides. Org Lett 2023; 25:8089-8094. [PMID: 37930187 DOI: 10.1021/acs.orglett.3c03181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2023]
Abstract
A versatile titanocene-catalyzed radical allyl transfer reaction on epoxides is reported. Epoxide opening occurs regioselectively at the more hindered side, and variously substituted allyl sulfone may be coupled to this position in an efficient manner, enabling a rapid access to quaternary carbon centers with useful functionalities for further elaboration. Furthermore, the procedure can be expanded to stereoselective variants. This new radical allyl transfer expands the scope of allylation in organic synthesis.
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Affiliation(s)
- Michael Schrempp
- Kekulé-Institute for Organic Chemistry and Biochemistry, University of Bonn, D-53121 Bonn, Germany
| | - Raphael Wagner
- Kekulé-Institute for Organic Chemistry and Biochemistry, University of Bonn, D-53121 Bonn, Germany
| | - Hermann Gleich
- Kekulé-Institute for Organic Chemistry and Biochemistry, University of Bonn, D-53121 Bonn, Germany
| | - Andreas Gansäuer
- Kekulé-Institute for Organic Chemistry and Biochemistry, University of Bonn, D-53121 Bonn, Germany
| | - Dirk Menche
- Kekulé-Institute for Organic Chemistry and Biochemistry, University of Bonn, D-53121 Bonn, Germany
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2
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Menche D, Heinemann MJB, Voigt T. Dihydroxylation Studies of Isoquinolinones: Synthesis of the EF-Ring of Lysolipin I. SYNTHESIS-STUTTGART 2022. [DOI: 10.1055/a-1628-7972] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
AbstractInspired by the potent polycyclic xanthone antibiotic lysolipin I, a general study on asymmetric dihydroxylation reactions of variously substituted isoquinolinones was performed. Different isoquinolinones were efficiently prepared, either by a Pomeranz–Fritsch type condensation or a Curtius rearrangement. Under a broad variety of conventional oxygenation procedures, they proved very unreactive. However, either by suitable substitution of the appending aromatic ring or more forcing conditions a dihydroxylation could finally be performed, which allowed the synthesis of the EF-ring of lysolipin I.
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3
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Menche D. Design and Synthesis of Simplified Polyketide Analogs: New Modalities beyond the Rule of 5. ChemMedChem 2021; 16:2068-2074. [PMID: 33755304 PMCID: PMC8360190 DOI: 10.1002/cmdc.202100150] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Indexed: 12/29/2022]
Abstract
Natural products provide important lead structures for development of pharmaceutical agents or present attractive tools for medicinal chemistry. However, structurally complex and thus less accessible metabolites defying conventional drug-like properties, as expressed by Pfizer's rule of five, have received less attention as medicinal leads. Traditionally, research focus has been on realizing total syntheses rather than developing more readily available analogs to resolve the critical supply issue. However, very recent studies with complex myxobacterial polyketides have demonstrated that considerable structural simplification may be realized with retention of biological potencies. The context, underlying rationale and importance of tailored synthetic strategies of three such case studies are presented, which may inspire further related activities and may eventually help exploiting the largely untapped biological potential of complex metabolites in general.
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Affiliation(s)
- Dirk Menche
- Kekulé-Institut für Organische Chemie und BiochemieUniversität BonnGerhard-Domagk-Strasse 153121BonnGermany
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4
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Pan Y, Wang D, Chen Y, Zhang D, Liu W, Yang X. Kinetic Resolution of α-Tertiary Propargylic Amines through Asymmetric Remote Aminations of Anilines. ACS Catal 2021. [DOI: 10.1021/acscatal.1c02331] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Yongkai Pan
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Donglei Wang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- Shanghai Institute of Organic Chemistry, Shanghai 200032, China
| | - Yunrong Chen
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - DeKun Zhang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Wei Liu
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Xiaoyu Yang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
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5
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Hur J, Jang J, Sim J. A Review of the Pharmacological Activities and Recent Synthetic Advances of γ-Butyrolactones. Int J Mol Sci 2021; 22:2769. [PMID: 33803380 PMCID: PMC7967234 DOI: 10.3390/ijms22052769] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 02/26/2021] [Accepted: 03/03/2021] [Indexed: 02/06/2023] Open
Abstract
γ-Butyrolactone, a five-membered lactone moiety, is one of the privileged structures of diverse natural products and biologically active small molecules. Because of their broad spectrum of biological and pharmacological activities, synthetic methods for γ-butyrolactones have received significant attention from synthetic and medicinal chemists for decades. Recently, new developments and improvements in traditional methods have been reported by considering synthetic efficiency, feasibility, and green chemistry. In this review, the pharmacological activities of natural and synthetic γ-butyrolactones are described, including their structures and bioassay methods. Mainly, we summarize recent advances, occurring during the past decade, in the construction of γ-butyrolactone classified based on the bond formation in γ-butyrolactone between (i) C5-O1 bond, (ii) C4-C5 and C2-O1 bonds, (iii) C3-C4 and C2-O1 bonds, (iv) C3-C4 and C5-O1 bonds, (v) C2-C3 and C2-O1 bonds, (vi) C3-C4 bond, and (vii) C2-O1 bond. In addition, the application to the total synthesis of natural products bearing γ-butyrolactone scaffolds is described.
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Affiliation(s)
- Joonseong Hur
- Natural Products Research Institute, Korea Institute of Science and Technology (KIST), 679 Saimdang-ro, Gangneung 25451, Korea;
| | - Jaebong Jang
- College of Pharmacy, Korea University, Sejong 30019, Korea
| | - Jaehoon Sim
- College of Pharmacy, Chungnam National University, Daejeon 34134, Korea
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6
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Spindler S, Wingen LM, Schönenbroicher M, Seul M, Adamek M, Essig S, Kurz M, Ziemert N, Menche D. Modular Fragment Synthesis and Bioinformatic Analysis Propose a Revised Vancoresmycin Stereoconfiguration. Org Lett 2021; 23:1175-1180. [PMID: 33356317 DOI: 10.1021/acs.orglett.0c03957] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Elaborate fragments of the proposed stereostructure of the complex polyketide antibiotic vancoresmycin have been synthesized in a stereoselective fashion based on a modular and convergent approach. Significant nuclear magnetic resonance differences in one of these subunits compared with the natural product question the proposed stereoconfiguration. Consequently, an extensive bioinformatics analysis of the biosynthetic gene cluster was carried out, leading to a revised stereoconfigurational proposal for this highly potent antibiotic.
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Affiliation(s)
- Stefanie Spindler
- Kekulé-Institut für Organische Chemie und Biochemie, Universität Bonn, Gerhard-Domagk-Str. 1, D-53121 Bonn, Germany
| | - Lukas M Wingen
- Kekulé-Institut für Organische Chemie und Biochemie, Universität Bonn, Gerhard-Domagk-Str. 1, D-53121 Bonn, Germany
| | - Max Schönenbroicher
- Kekulé-Institut für Organische Chemie und Biochemie, Universität Bonn, Gerhard-Domagk-Str. 1, D-53121 Bonn, Germany
| | - Maximilian Seul
- Kekulé-Institut für Organische Chemie und Biochemie, Universität Bonn, Gerhard-Domagk-Str. 1, D-53121 Bonn, Germany
| | - Martina Adamek
- Interfaculty Institute of Microbiology and Infection Medicine, German Centre for Infection Research (DZIF), Partnersite Tuebingen, Auf der Morgenstelle 28, D-72076 Tübingen, Germany
| | | | - Michael Kurz
- Sanofi-Aventis Deutschland GmbH, Industriepark Höchst, D-65926 Frankfurt am Main, Germany
| | - Nadine Ziemert
- Interfaculty Institute of Microbiology and Infection Medicine, German Centre for Infection Research (DZIF), Partnersite Tuebingen, Auf der Morgenstelle 28, D-72076 Tübingen, Germany
| | - Dirk Menche
- Kekulé-Institut für Organische Chemie und Biochemie, Universität Bonn, Gerhard-Domagk-Str. 1, D-53121 Bonn, Germany
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7
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Wosniok PR, Knopf C, Dreisigacker S, Orozco‐Rodriguez JM, Hinkelmann B, Mueller PP, Brönstrup M, Menche D. SAR Studies of the Leupyrrins: Design and Total Synthesis of Highly Potent Simplified Leupylogs. Chemistry 2020; 26:15074-15078. [PMID: 32608026 PMCID: PMC7756798 DOI: 10.1002/chem.202002622] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Indexed: 02/01/2023]
Abstract
Leupyrrins are highly potent antifungal agents. A structure-activity-relationship study of natural and synthetic derivatives is reported which reveals important insights into the biological relevance of several structural subunits leading to the discovery of highly potent but drastically simplified leupylogs that incorporate a stable and readily available aromatic side chain. For their synthesis a concise strategy is described that enables a short and versatile access.
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Affiliation(s)
- Paul R. Wosniok
- Kekulé-Institut für Organische Chemie und BiochemieUniversität BonnGerhard-Domagk-Str. 153121BonnGermany
- Current address: Eurofins Umwelt West GmbH Wesseling, Vorgebirgsstrasse 20, 50389 Wesseling, Germany
| | - Christopher Knopf
- Kekulé-Institut für Organische Chemie und BiochemieUniversität BonnGerhard-Domagk-Str. 153121BonnGermany
- Current address: Eurofins Umwelt West GmbH Wesseling, Eurofins Genomics Europe Synthesis GmbH, Anzinger Str. 7a, 85560 Ebersberg, Germany
| | - Sandra Dreisigacker
- Kekulé-Institut für Organische Chemie und BiochemieUniversität BonnGerhard-Domagk-Str. 153121BonnGermany
- Current address: HWI pharma services GmbHRheinzaberner Straße 876761RuelzheimGermany
| | | | - Bettina Hinkelmann
- Helmholtz Centre for Infection ResearchInhoffenstraße 738124BraunschweigGermany
| | - Peter P. Mueller
- Helmholtz Centre for Infection ResearchInhoffenstraße 738124BraunschweigGermany
| | - Mark Brönstrup
- Helmholtz Centre for Infection ResearchInhoffenstraße 738124BraunschweigGermany
| | - Dirk Menche
- Kekulé-Institut für Organische Chemie und BiochemieUniversität BonnGerhard-Domagk-Str. 153121BonnGermany
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8
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Wollnitzke P, Essig S, Gölz JP, von Schwarzenberg K, Menche D. Total Synthesis of Ajudazol A by a Modular Oxazole Diversification Strategy. Org Lett 2020; 22:6344-6348. [DOI: 10.1021/acs.orglett.0c02188] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Philipp Wollnitzke
- Kekulé-Institute for Organic Chemistry and Biochemistry, University of Bonn, Gerhard-Domagk-Strasse 1, D-53121 Bonn, Germany
| | - Sebastian Essig
- Kekulé-Institute for Organic Chemistry and Biochemistry, University of Bonn, Gerhard-Domagk-Strasse 1, D-53121 Bonn, Germany
| | - Jan Philipp Gölz
- Kekulé-Institute for Organic Chemistry and Biochemistry, University of Bonn, Gerhard-Domagk-Strasse 1, D-53121 Bonn, Germany
| | - Karin von Schwarzenberg
- Department of Pharmacy-Center for Drug Research, Ludwig-Maximilians-University of Munich, Butenandtstrasse 5-13, D-83177 Munich, Germany
| | - Dirk Menche
- Kekulé-Institute for Organic Chemistry and Biochemistry, University of Bonn, Gerhard-Domagk-Strasse 1, D-53121 Bonn, Germany
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9
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Li M, Sun Y, Xie Y, Yu Y, Huang F, Huang H. Copper-catalyzed carbene insertion and ester migration for the synthesis of polysubstituted pyrroles. Chem Commun (Camb) 2020; 56:11050-11053. [DOI: 10.1039/d0cc04157b] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A mild synthetic protocol to access 2-ester pyrroles through Cu(OTf)2-catalysed carbene insertion/ester migration/cyclization of enaminones and α-diazo compounds is reported.
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Affiliation(s)
- Mingrui Li
- School of Pharmaceutical Sciences
- Nanjing Tech University
- Nanjing 211816
- P. R. China
| | - Yiming Sun
- School of Pharmaceutical Sciences
- Nanjing Tech University
- Nanjing 211816
- P. R. China
| | - Yuxing Xie
- School of Food Science and Pharmaceutical Engineering
- Nanjing Normal University
- Nanjing 210023
- P. R. China
| | - Yang Yu
- School of Environmental Science and Engineering
- Nanjing Tech University
- Nanjing 211816
- P. R. China
| | - Fei Huang
- School of Pharmaceutical Sciences
- Nanjing Tech University
- Nanjing 211816
- P. R. China
- School of Food Science and Pharmaceutical Engineering
| | - He Huang
- School of Pharmaceutical Sciences
- Nanjing Tech University
- Nanjing 211816
- P. R. China
- School of Food Science and Pharmaceutical Engineering
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10
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Taheri Kal Koshvandi A, Heravi MM, Momeni T. Current Applications of Suzuki–Miyaura Coupling Reaction in The Total Synthesis of Natural Products: An update. Appl Organomet Chem 2018. [DOI: 10.10.1002/aoc.4210] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | | | - Tayebeh Momeni
- Department of ChemistryAlzahra University Vanak Tehran Iran
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11
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Šagud I, Šindler-Kulyk M, Vojnović-Jandrić D, Marinić Ž. Versatile Photochemical Reactivity of Diverse Substituted 2-, 4- and 5-(o
-Vinylstyryl)oxazoles. European J Org Chem 2018. [DOI: 10.1002/ejoc.201701551] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Ivana Šagud
- Department of Organic Chemistry; Faculty of Chemical Engineering and Technology; University of Zagreb; Marulićev trg 19 10000 Zagreb Croatia
| | - Marija Šindler-Kulyk
- Department of Organic Chemistry; Faculty of Chemical Engineering and Technology; University of Zagreb; Marulićev trg 19 10000 Zagreb Croatia
| | - Dragana Vojnović-Jandrić
- Department of Organic Chemistry; Faculty of Chemical Engineering and Technology; University of Zagreb; Marulićev trg 19 10000 Zagreb Croatia
| | - Željko Marinić
- NMR Center; Faculty of Chemical Engineering and Technology; Rudjer Bošković Institute; 10000 Zagreb Croatia
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12
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Taheri Kal Koshvandi A, Heravi MM, Momeni T. Current Applications of Suzuki–Miyaura Coupling Reaction in The Total Synthesis of Natural Products: An update. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4210] [Citation(s) in RCA: 99] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
| | | | - Tayebeh Momeni
- Department of ChemistryAlzahra University Vanak Tehran Iran
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13
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Kamouka S, Moran WJ. Iodoarene-catalyzed cyclizations of N-propargylamides and β-amidoketones: synthesis of 2-oxazolines. Beilstein J Org Chem 2017; 13:1823-1827. [PMID: 28904626 PMCID: PMC5588552 DOI: 10.3762/bjoc.13.177] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Accepted: 08/17/2017] [Indexed: 01/22/2023] Open
Abstract
Two complementary iodoarene-catalyzed methods for the preparation of 2-oxazolines are presented. The first involves the cyclization of N-propargylamides and the second involves the cyclization of β-amidoketones. These are proposed to proceed through different mechanisms and have different substrate scopes.
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Affiliation(s)
- Somaia Kamouka
- Department of Chemistry, University of Huddersfield, Queensgate, Huddersfield HD1 3DH, UK. Tel: +44-1484-473741
| | - Wesley J Moran
- Department of Chemistry, University of Huddersfield, Queensgate, Huddersfield HD1 3DH, UK. Tel: +44-1484-473741
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14
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Zhang H, Yao Q, Lin L, Xu C, Liu X, Feng X. Catalytic Asymmetric Epoxidation of Electron-Deficient Enynes Promoted by Chiral N,N′
-Dioxide-Scandium(III) Complex. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700555] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Hang Zhang
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry; Sichuan University; Chengdu 610064 People's Republic of China
| | - Qian Yao
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry; Sichuan University; Chengdu 610064 People's Republic of China
| | - Lili Lin
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry; Sichuan University; Chengdu 610064 People's Republic of China
| | - Chaoran Xu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry; Sichuan University; Chengdu 610064 People's Republic of China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry; Sichuan University; Chengdu 610064 People's Republic of China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry; Sichuan University; Chengdu 610064 People's Republic of China
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15
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Abstract
Covering: July 2012 to June 2015. Previous review: Nat. Prod. Rep., 2013, 30, 869-915The structurally diverse imidazole-, oxazole-, and thiazole-containing secondary metabolites are widely distributed in terrestrial and marine environments, and exhibit extensive pharmacological activities. In this review the latest progress involving the isolation, biological activities, and chemical and biogenetic synthesis studies on these natural products has been summarized.
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Affiliation(s)
- Zhong Jin
- State Key Laboratory and Institute of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China. and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, China
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16
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Berthet M, Martinez J, Parrot I. MgI
2
‐chemoselective cleavage for removal of amino acid protecting groups: A fresh vision for peptide synthesis. Pept Sci (Hoboken) 2017; 108. [DOI: 10.1002/bip.22908] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2016] [Revised: 06/28/2016] [Accepted: 07/04/2016] [Indexed: 12/21/2022]
Affiliation(s)
- Mathéo Berthet
- Institut des Biomolécules Max Mousseron, IBMM UMR‐5247 CNRS, Université de Montpellier, ENSCMCC17‐03, Pl. E. Bataillon, 34095 Montpellier Cedex 5 France
| | - Jean Martinez
- Institut des Biomolécules Max Mousseron, IBMM UMR‐5247 CNRS, Université de Montpellier, ENSCMCC17‐03, Pl. E. Bataillon, 34095 Montpellier Cedex 5 France
| | - Isabelle Parrot
- Institut des Biomolécules Max Mousseron, IBMM UMR‐5247 CNRS, Université de Montpellier, ENSCMCC17‐03, Pl. E. Bataillon, 34095 Montpellier Cedex 5 France
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17
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Thiede S, Wosniok PR, Herkommer D, Debnar T, Tian M, Wang T, Schrempp M, Menche D. Total Synthesis of Leupyrrins A1and B1, Highly Potent Antifungal Agents from the MyxobacteriumSorangium cellulosum. Chemistry 2016; 23:3300-3320. [DOI: 10.1002/chem.201604445] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Indexed: 01/17/2023]
Affiliation(s)
- Sebastian Thiede
- Kekulé-Institut für Organische Chemie und Biochemie; Universität Bonn; Gerhard-Domagk-Str. 1 53121 Bonn Germany
| | - Paul R. Wosniok
- Kekulé-Institut für Organische Chemie und Biochemie; Universität Bonn; Gerhard-Domagk-Str. 1 53121 Bonn Germany
| | - Daniel Herkommer
- Kekulé-Institut für Organische Chemie und Biochemie; Universität Bonn; Gerhard-Domagk-Str. 1 53121 Bonn Germany
- Current address: GlaxoSmithKline, Medicines Research Centre; Gunnels Wood Road Stevenage SG1 2NY UK
| | - Thomas Debnar
- Kekulé-Institut für Organische Chemie und Biochemie; Universität Bonn; Gerhard-Domagk-Str. 1 53121 Bonn Germany
- Current address: Dottikon Exclusive Synthesis AG; Dottikon Switzerland
| | - Maoqun Tian
- Kekulé-Institut für Organische Chemie und Biochemie; Universität Bonn; Gerhard-Domagk-Str. 1 53121 Bonn Germany
- Current address: Scripps Research Institute; La Jolla USA
| | - Tongtong Wang
- Kekulé-Institut für Organische Chemie und Biochemie; Universität Bonn; Gerhard-Domagk-Str. 1 53121 Bonn Germany
- Current address: Institute of Quality Standard and Testing Technology for Agro-products; Chinese Academy of Agricultural Sciences; Key Laboratory of Agro-food Safety and Quality; Ministry of Agriculture; Beijing China
| | - Michael Schrempp
- Kekulé-Institut für Organische Chemie und Biochemie; Universität Bonn; Gerhard-Domagk-Str. 1 53121 Bonn Germany
| | - Dirk Menche
- Kekulé-Institut für Organische Chemie und Biochemie; Universität Bonn; Gerhard-Domagk-Str. 1 53121 Bonn Germany
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18
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Thiede S, Wosniok PR, Herkommer D, Schulz-Fincke AC, Gütschow M, Menche D. Total Synthesis of Leupyrrin B1: A Potent Inhibitor of Human Leukocyte Elastase. Org Lett 2016; 18:3964-7. [DOI: 10.1021/acs.orglett.6b01724] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sebastian Thiede
- Kekulé-Institut für
Organische Chemie und Biochemie and ‡Pharmazeutisches
Institut, Universität Bonn, D-53121 Bonn, Germany
| | - Paul R. Wosniok
- Kekulé-Institut für
Organische Chemie und Biochemie and ‡Pharmazeutisches
Institut, Universität Bonn, D-53121 Bonn, Germany
| | - Daniel Herkommer
- Kekulé-Institut für
Organische Chemie und Biochemie and ‡Pharmazeutisches
Institut, Universität Bonn, D-53121 Bonn, Germany
| | - Anna-Christina Schulz-Fincke
- Kekulé-Institut für
Organische Chemie und Biochemie and ‡Pharmazeutisches
Institut, Universität Bonn, D-53121 Bonn, Germany
| | - Michael Gütschow
- Kekulé-Institut für
Organische Chemie und Biochemie and ‡Pharmazeutisches
Institut, Universität Bonn, D-53121 Bonn, Germany
| | - Dirk Menche
- Kekulé-Institut für
Organische Chemie und Biochemie and ‡Pharmazeutisches
Institut, Universität Bonn, D-53121 Bonn, Germany
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19
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Bretzke S, Scheeff S, Vollmeyer F, Eberhagen F, Rominger F, Menche D. Modular synthesis of the pyrimidine core of the manzacidins by divergent Tsuji-Trost coupling. Beilstein J Org Chem 2016; 12:1111-21. [PMID: 27340499 PMCID: PMC4902044 DOI: 10.3762/bjoc.12.107] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Accepted: 05/13/2016] [Indexed: 12/20/2022] Open
Abstract
The design, development and application of an efficient procedure for the concise synthesis of the 1,3-syn- and anti-tetrahydropyrimidine cores of manzacidins are reported. The intramolecular allylic substitution reaction of a readily available joint urea-type substrate enables the facile preparation of both diastereomers in high yields. The practical application of this approach is demonstrated in the efficient and modular preparation of the authentic heterocyclic cores of manzacidins, structurally unique bromopyrrole alkaloids of marine origin. Additional features of this route include the stereoselective generation of the central amine core with an appending quaternary center by an asymmetric addition of a Grignard reagent to a chiral tert-butanesulfinyl ketimine following an optimized Ellman protocol and a cross-metathesis of a challenging homoallylic urea substrate, which proceeds in good yields in the presence of an organic phosphoric acid.
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Affiliation(s)
- Sebastian Bretzke
- Institut für Organische Chemie, Ruprecht-Karls Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Stephan Scheeff
- Kekulé-Institut für Organische Chemie und Biochemie, Universität Bonn, Gerhard-Domagk-Strasse 1, 53121 Bonn, Germany
| | - Felicitas Vollmeyer
- Kekulé-Institut für Organische Chemie und Biochemie, Universität Bonn, Gerhard-Domagk-Strasse 1, 53121 Bonn, Germany
| | - Friederike Eberhagen
- Kekulé-Institut für Organische Chemie und Biochemie, Universität Bonn, Gerhard-Domagk-Strasse 1, 53121 Bonn, Germany
| | - Frank Rominger
- Institut für Organische Chemie, Ruprecht-Karls Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Dirk Menche
- Kekulé-Institut für Organische Chemie und Biochemie, Universität Bonn, Gerhard-Domagk-Strasse 1, 53121 Bonn, Germany
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Schrempp M, Thiede S, Herkommer D, Gansäuer A, Menche D. Synthesis of α‐Chiral Butyrolactones by Highly Stereoselective Radical Transfer or Sequential Asymmetric Alkylations: Concise Preparation of Leupyrrin Moieties. Chemistry 2015; 21:16266-71. [DOI: 10.1002/chem.201502263] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2015] [Indexed: 11/09/2022]
Affiliation(s)
- Michael Schrempp
- Kekulé‐Institut für Organische Chemie und Biochemie, Universität Bonn, Gerhard‐Domagk‐Str. 1, 53121 Bonn (Germany)
| | - Sebastian Thiede
- Kekulé‐Institut für Organische Chemie und Biochemie, Universität Bonn, Gerhard‐Domagk‐Str. 1, 53121 Bonn (Germany)
| | - Daniel Herkommer
- Kekulé‐Institut für Organische Chemie und Biochemie, Universität Bonn, Gerhard‐Domagk‐Str. 1, 53121 Bonn (Germany)
| | - Andreas Gansäuer
- Kekulé‐Institut für Organische Chemie und Biochemie, Universität Bonn, Gerhard‐Domagk‐Str. 1, 53121 Bonn (Germany)
| | - Dirk Menche
- Kekulé‐Institut für Organische Chemie und Biochemie, Universität Bonn, Gerhard‐Domagk‐Str. 1, 53121 Bonn (Germany)
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