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Gjessing G, Johnsen LIG, Antonsen SG, Nolsøe JMJ, Stenstrøm Y, Hansen TV. The Synthesis of 3-(R)- and 3-(S)-Hydroxyeicosapentaenoic Acid. Molecules 2022; 27:molecules27072295. [PMID: 35408694 PMCID: PMC9000449 DOI: 10.3390/molecules27072295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 03/24/2022] [Accepted: 03/30/2022] [Indexed: 02/01/2023] Open
Abstract
Monohydroxylated polyunsaturated fatty acids belonging to the oxylipin class of natural products are present in marine and terrestrial sources as well as in the human body. Due to their biological activities and role in diverse biosynthetic pathways, oxylipins biosynthesized from eicosapentaenoic acid and arachidonic acid have attracted great interest from the scientific community. One example is 3-hydroxyeicosapentaenoic acid where the absolute configuration at C-3 has only been tentatively assigned. In this paper, studies on acetate type aldol reactions that enabled the preparation of 3-(R)-hydroxyeicosapentaenoic acid (3R-HETE, 2) and its enantiomer are presented.
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Affiliation(s)
- Gard Gjessing
- Department of Chemistry, Biotechnology and Food Science, Norwegian University of Life Sciences, P.O. Box 5003, NO-1433 Ås, Norway; (G.G.); (S.G.A.); (J.M.J.N.)
| | - Lars-Inge Gammelsæter Johnsen
- Section of Pharmaceutical Chemistry, Department of Pharmacy, University of Oslo, P.O. Box 1068 Blindern, NO-0316 Oslo, Norway;
| | - Simen Gjelseth Antonsen
- Department of Chemistry, Biotechnology and Food Science, Norwegian University of Life Sciences, P.O. Box 5003, NO-1433 Ås, Norway; (G.G.); (S.G.A.); (J.M.J.N.)
- Department of Mechanical, Electronic and Chemical Engineering, Faculty of Technology, Art and Design, OsloMet, P.O. Box 4, St. Olavs Plass, NO-0130 Oslo, Norway
| | - Jens M. J. Nolsøe
- Department of Chemistry, Biotechnology and Food Science, Norwegian University of Life Sciences, P.O. Box 5003, NO-1433 Ås, Norway; (G.G.); (S.G.A.); (J.M.J.N.)
| | - Yngve Stenstrøm
- Department of Chemistry, Biotechnology and Food Science, Norwegian University of Life Sciences, P.O. Box 5003, NO-1433 Ås, Norway; (G.G.); (S.G.A.); (J.M.J.N.)
- Correspondence: (Y.S.); (T.V.H.)
| | - Trond Vidar Hansen
- Department of Chemistry, Biotechnology and Food Science, Norwegian University of Life Sciences, P.O. Box 5003, NO-1433 Ås, Norway; (G.G.); (S.G.A.); (J.M.J.N.)
- Section of Pharmaceutical Chemistry, Department of Pharmacy, University of Oslo, P.O. Box 1068 Blindern, NO-0316 Oslo, Norway;
- Correspondence: (Y.S.); (T.V.H.)
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Bhamboo P, Bera S, Mondal D. TiCl
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‐Promoted Asymmetric Aldol Reaction of Oxazolidinones and its Sulphur‐Congeners for Natural Product Synthesis. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100432] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Prateek Bhamboo
- School of Chemical Sciences Central University of Gujarat Gandhinagar 382030 Gujarat India
| | - Smritilekha Bera
- School of Chemical Sciences Central University of Gujarat Gandhinagar 382030 Gujarat India
| | - Dhananjoy Mondal
- School of Chemical Sciences Central University of Gujarat Gandhinagar 382030 Gujarat India
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A unified approach for divergent synthesis of contiguous stereodiads employing a small boronyl group. Nat Commun 2020; 11:792. [PMID: 32034155 PMCID: PMC7005891 DOI: 10.1038/s41467-020-14592-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2019] [Accepted: 01/13/2020] [Indexed: 11/29/2022] Open
Abstract
Acyclic contiguous stereocenters are frequently seen in biologically active natural and synthetic molecules. Although various synthetic methods have been reported, predictable and unified approaches to all possible stereoisomers are rare, particularly for those containing non-reactive hydrocarbon substituents. Herein, a β-boronyl group is employed as a readily accessible handle for predictable α-functionalization of enolates with either syn or anti selectivity depending on reaction conditions. Contiguous tertiary-tertiary and tertiary-quaternary stereocenters are thus accessed in generally good yields and diastereoselectivity. Based on experimental and computational studies, mechanism for syn selective alkylation is proposed, and Bpin (pinacolatoboronyl) behaves as a smaller group than most carbon-centered groups. The synthetic utility of this methodology is demonstrated by preparation of several key intermediates for bioactive molecules. Predictable and unified approaches to all possible stereoisomers of acyclic compounds with contiguous stereocentres are rare. Here, the authors disclose a divergent α-functionalization of enolates with either syn or anti selectivity employing a β-boronyl group as a small, directing handle.
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Coaviche-Yoval A, Andrade-Jorge E, Pérez-González C, Luna H, Tovar-Miranda R, Trujillo-Ferrara JG. Quantum Reality in the Selective Reduction of a Benzofuran System. MOLECULES (BASEL, SWITZERLAND) 2019; 24:molecules24112061. [PMID: 31151186 PMCID: PMC6600454 DOI: 10.3390/molecules24112061] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Accepted: 05/27/2019] [Indexed: 11/16/2022]
Abstract
Two 2,3-disubstituted benzofurans (1 and 2), analogs of gamma-aminobutyric acid (GABA), were synthesized to obtain their 2,3-dihydro derivatives from the Pd/C-driven catalytic reduction of the double bond in the furanoid ring. The synthesis produced surprising by-products. Therefore, theoretical calculations of global and local reactivity were performed based on Pearson's hard and soft acids and bases (HSAB) principle to understand the regioselectivity that occurred in the reduction of the olefinic carbons of the compounds. Local electrophilicity (ωk) was the most useful parameter for explaining the selectivity of the polar reactions. This local parameter was defined with the condensed Fukui function and redefined with the electrophilic (Pk+) Parr function. The similar patterns of both resulting sets of values helped to demonstrate the electrophilic behavior (soft acid) of the olefinic carbons in these compounds. The theoretical calculations, nuclear magnetic resonance, and resonance hybrids showed the moieties in each compound that are most susceptible to reduction.
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Affiliation(s)
- Arturo Coaviche-Yoval
- Doctorado en Ciencias Biológicas y de la Salud, Universidad Autónoma Metropolitana-Unidad Xochimilco, Mexico City 04960, Mexico.
| | - Erik Andrade-Jorge
- Departamento de Bioquímica, Sección de Estudios de Posgrado e Investigación, Escuela Superior de Medicina, Instituto Politécnico Nacional, Mexico City 11340, Mexico.
- Unidad de Investigación en Biomedicina, Facultad de Estudios Superiores-Iztacala, Universidad Nacional Autónoma de México. Av. de los Barrios 1, Los Reyes Iztacala, Tlalnepantla 54090, Estado de México, Mexico.
| | - Cuauhtémoc Pérez-González
- Departamento de Sistemas Biológicos, Universidad Autónoma Metropolitana-Unidad Xochimilco, Mexico City 04960, Mexico.
| | - Héctor Luna
- Departamento de Sistemas Biológicos, Universidad Autónoma Metropolitana-Unidad Xochimilco, Mexico City 04960, Mexico.
| | - Ricardo Tovar-Miranda
- Instituto de Ciencias Básicas, Universidad Veracruzana, Xalapa 91190, Veracruz, Mexico.
| | - José G Trujillo-Ferrara
- Departamento de Bioquímica, Sección de Estudios de Posgrado e Investigación, Escuela Superior de Medicina, Instituto Politécnico Nacional, Mexico City 11340, Mexico.
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Muralikrishna K, Satyanarayana V, Kumar GC, Yadav JS. Studies towards the Synthesis of Aldgamycin – M. ChemistrySelect 2019. [DOI: 10.1002/slct.201803591] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Katta Muralikrishna
- Department: Center for SemiochemicalsInstitution: Indian Institute of Chemical Technology Address 1 CSIR- Indian Institute of Chemical Technology Hyderabad -500007 India
| | - Vavilapalli Satyanarayana
- Department: Center for SemiochemicalsInstitution: Indian Institute of Chemical Technology Address 1 CSIR- Indian Institute of Chemical Technology Hyderabad -500007 India
| | - Gavireddy Chaithanya Kumar
- Department: Center for SemiochemicalsInstitution: Indian Institute of Chemical Technology Address 1 CSIR- Indian Institute of Chemical Technology Hyderabad -500007 India
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Synthesis of the spiroacetal fragments of spirofungins A and B, antibiotics isolated from Streptomyces violaceusniger Tü 4113. HETEROCYCL COMMUN 2015. [DOI: 10.1515/hc-2015-0193] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
AbstractThe spiroacetal [C(9)–C(20)] fragments of spirofungins A and B, antibiotics isolated from Streptomyces violaceusniger Tü 4113, were prepared from a known bromo alcohol derived from (S)-citronellal, using thermodynamically controlled iodolactonization and spiroacetalization as the key steps.
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Swick SM, Schaefer SL, O’Neil GW. Synthesis of the C 1-C 17 fragment of the archazolids by complex cis-homodimer cross metathesis. Tetrahedron Lett 2015; 56:4039-4042. [PMID: 26257444 PMCID: PMC4525707 DOI: 10.1016/j.tetlet.2015.05.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
A synthesis of the C1-C17 fragment of the archazolids is described featuring a complex cross-metathesis coupling reaction between a cis-homodimer (prepared by silyl-tethered ring-closing metathesis) and the Z,Z-terminal triene containing "eastern domain" of the archazolid natural products. This cross-metathesis was only successful when using the cis- as opposed to the monomer or trans-homodimer, with the cis-dimer added batchwise to minimize cis/trans-isomerization. The product was obtained in an optimized 78% yield using the Hoveyda-Grubbs catalyst at 50 °C in toluene.
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Affiliation(s)
- Steven M. Swick
- Department of Chemistry, Western Washington University, Bellingham, WA, 98225, USA
| | - Sara L. Schaefer
- Department of Chemistry, Western Washington University, Bellingham, WA, 98225, USA
| | - Gregory W. O’Neil
- Department of Chemistry, Western Washington University, Bellingham, WA, 98225, USA
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Synthesis of 5,6- and 6,6-Spirocyclic Compounds. SYNTHESIS OF SATURATED OXYGENATED HETEROCYCLES I 2014. [DOI: 10.1007/978-3-642-41473-2_5] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Lisboa MP, Jones DM, Dudley GB. Formal Synthesis of Palmerolide A, Featuring Alkynogenic Fragmentation and syn-Selective Vinylogous Aldol Chemistry. Org Lett 2013; 15:886-9. [DOI: 10.1021/ol400014e] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Marilda P. Lisboa
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306-4390, United States
| | - David M. Jones
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306-4390, United States
| | - Gregory B. Dudley
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306-4390, United States
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Herndon JW. The chemistry of the carbon–transition metal double and triple bond: Annual survey covering the year 2010. Coord Chem Rev 2012. [DOI: 10.1016/j.ccr.2012.02.015] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Khan AA, Chee SH, Stocker BL, Timmer MSM. The Synthesis of Long-Chain α-Alkyl-β-Hydroxy Esters Using Allylic Halides in a Fráter-Seebach Alkylation. European J Org Chem 2011. [DOI: 10.1002/ejoc.201101472] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Lynch JE, Zanatta SD, White JM, Rizzacasa MA. Stereoselective Total Synthesis of (−)-Spirofungin A by Utilising Hydrogen-Bond Controlled Spiroketalisation. Chemistry 2010; 17:297-304. [DOI: 10.1002/chem.201002501] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2010] [Indexed: 11/05/2022]
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