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Crauste C, Galano JM, Guy A, Lehoux J, Durand T, Balas L. Synthesis of fatty acid bioconjugates and related derivatives. European J Org Chem 2022. [DOI: 10.1002/ejoc.202101502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Céline Crauste
- IBMM: Institut des Biomolecules Max Mousseron synthesis of bioactive lipids FRANCE
| | - jean-Marie Galano
- IBMM: Institut des Biomolecules Max Mousseron synthesis of bioactive lipids FRANCE
| | - Alexandre Guy
- IBMM: Institut des Biomolecules Max Mousseron synthesis of bioactive lipids FRANCE
| | - Jordan Lehoux
- IBMM: Institut des Biomolecules Max Mousseron synthesis of bioactive lipids FRANCE
| | - Thierry Durand
- IBMM: Institut des Biomolecules Max Mousseron synthesis of bioactive lipids FRANCE
| | - Laurence Balas
- UMR 5247: Institut des Biomolecules Max Mousseron Synthesis of bioactive lipids 1919 route de Mende 34293 Montpellier Cedex FRANCE
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Chen J, Gao S, Chen M. Cu-catalyzed C-C bond formation of vinylidene cyclopropanes with carbon nucleophiles. Chem Sci 2019; 10:10601-10606. [PMID: 32110346 PMCID: PMC7020789 DOI: 10.1039/c9sc04122b] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Accepted: 09/30/2019] [Indexed: 12/22/2022] Open
Abstract
The development of Cu-catalyzed addition of carbon nucleophiles to vinylidene cyclopropanes was reported. The reactions with 1,1-bisborylmethane provided homopropargylic boronate products by forming a C-C bond at the terminal carbon atom of the allene moiety of vinylidene cyclopropanes. Alkynyl boronates are also suitable nucleophile precursors in reactions with vinylidene cyclopropanes, and skipped diynes were obtained in high yields. In addition, the Cu-enolate generated from the initial addition of nucleophilic copper species to vinylidene cyclopropanes can be intercepted by an external electrophile. As such, vinylidene cyclopropane serves as a linchpin to connect a nucleophile and an electrophile by forming two carbon-carbon bonds sequentially.
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Affiliation(s)
- Jichao Chen
- Department of Chemistry and Biochemistry , Auburn University , Auburn , AL 36849 , USA .
| | - Shang Gao
- Department of Chemistry and Biochemistry , Auburn University , Auburn , AL 36849 , USA .
| | - Ming Chen
- Department of Chemistry and Biochemistry , Auburn University , Auburn , AL 36849 , USA .
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A New Generation of Arachidonic Acid Analogues as Potential Neurological Agent Targeting Cytosolic Phospholipase A 2. Sci Rep 2017; 7:13683. [PMID: 29057981 PMCID: PMC5651845 DOI: 10.1038/s41598-017-13996-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Accepted: 10/04/2017] [Indexed: 11/08/2022] Open
Abstract
Cytosolic phospholipase A2 (cPLA2) is an enzyme that releases arachidonic acid (AA) for the synthesis of eicosanoids and lysophospholipids which play critical roles in the initiation and modulation of oxidative stress and neuroinflammation. In the central nervous system, cPLA2 activation is implicated in the pathogenesis of various neurodegenerative diseases that involves neuroinflammation, thus making it an important pharmacological target. In this paper, a new class of arachidonic acid (AA) analogues was synthesized and evaluated for their ability to inhibit cPLA2. Several compounds were found to inhibit cPLA2 more strongly than arachidonyl trifluoromethyl ketone (AACOCF3), an inhibitor that is commonly used in the study of cPLA2-related neurodegenerative diseases. Subsequent experiments concluded that one of the inhibitors was found to be cPLA2-selective, non-cytotoxic, cell and brain penetrant and capable of reducing reactive oxygen species (ROS) and nitric oxide (NO) production in stimulated microglial cells. Computational studies were employed to understand how the compound interacts with cPLA2.
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Jiang X, Xue Y, Ma S. Aerobic oxidation and EATA-based highly enantioselective synthesis of lamenallenic acid. Org Chem Front 2017. [DOI: 10.1039/c6qo00785f] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A highly enantioselective synthesis of (−)-lamenallenic acid utilizing the recently developed EATA reaction and aerobic oxidation reaction has been accomplished.
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Affiliation(s)
- Xingguo Jiang
- State Key Laboratory of Organometallic Chemistry
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- P. R. China
| | - Yufeng Xue
- State Key Laboratory of Organometallic Chemistry
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- P. R. China
| | - Shengming Ma
- State Key Laboratory of Organometallic Chemistry
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- P. R. China
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Hwang SH, Wagner K, Xu J, Yang J, Li X, Cao Z, Morisseau C, Lee KSS, Hammock BD. Chemical synthesis and biological evaluation of ω-hydroxy polyunsaturated fatty acids. Bioorg Med Chem Lett 2016; 27:620-625. [PMID: 28025003 DOI: 10.1016/j.bmcl.2016.12.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Revised: 11/30/2016] [Accepted: 12/01/2016] [Indexed: 01/17/2023]
Abstract
ω-Hydroxy polyunsaturated fatty acids (PUFAs), natural metabolites from arachidonic acid (ARA), eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) were prepared via convergent synthesis approach using two key steps: Cu-mediated CC bond formation to construct methylene skipped poly-ynes and a partial alkyne hydrogenation where the presence of excess 2-methyl-2-butene as an additive that is proven to be critical for the success of partial reduction of the poly-ynes to the corresponding cis-alkenes without over-hydrogenation. The potential biological function of ω-hydroxy PUFAs in pain was evaluated in naive rats. Following intraplantar injection, 20-hydroxyeicosatetraenoic acid (20-HETE, ω-hydroxy ARA) generated an acute decrease in paw withdrawal thresholds in a mechanical nociceptive assay indicating pain, but no change was observed from rats which received either 20-hydroxyeicosapentaenoic acid (20-HEPE, ω-hydroxy EPA) or 22-hydroxydocosahexaenoic acid (22-HDoHE, ω-hydroxy DHA). We also found that both 20-HEPE and 22-HDoHE are more potent than 20-HETE to activate murine transient receptor potential vanilloid receptor1 (mTRPV1).
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Affiliation(s)
- Sung Hee Hwang
- Department of Entomology and Nematology, and UC Davis Comprehensive Cancer Center, University of California, Davis, One Shields Avenue, Davis, CA 95616, USA
| | - Karen Wagner
- Department of Entomology and Nematology, and UC Davis Comprehensive Cancer Center, University of California, Davis, One Shields Avenue, Davis, CA 95616, USA
| | - Jian Xu
- Jiangsu Provincial Key Laboratory of TCM Evaluation and Development, China Pharmaceutical University, 639, Longmian Ave, Jiangning District, Nanjing, Jiangsu 211198, PR China
| | - Jun Yang
- Department of Entomology and Nematology, and UC Davis Comprehensive Cancer Center, University of California, Davis, One Shields Avenue, Davis, CA 95616, USA
| | - Xichun Li
- Jiangsu Provincial Key Laboratory of TCM Evaluation and Development, China Pharmaceutical University, 639, Longmian Ave, Jiangning District, Nanjing, Jiangsu 211198, PR China
| | - Zhengyu Cao
- Jiangsu Provincial Key Laboratory of TCM Evaluation and Development, China Pharmaceutical University, 639, Longmian Ave, Jiangning District, Nanjing, Jiangsu 211198, PR China
| | - Christophe Morisseau
- Department of Entomology and Nematology, and UC Davis Comprehensive Cancer Center, University of California, Davis, One Shields Avenue, Davis, CA 95616, USA
| | - Kin Sing Stephen Lee
- Department of Entomology and Nematology, and UC Davis Comprehensive Cancer Center, University of California, Davis, One Shields Avenue, Davis, CA 95616, USA
| | - Bruce D Hammock
- Department of Entomology and Nematology, and UC Davis Comprehensive Cancer Center, University of California, Davis, One Shields Avenue, Davis, CA 95616, USA.
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Goldberg AFG, Craig RA, O'Connor NR, Stoltz BM. Highly functionalized donor-acceptor cyclopropanes applied toward the synthesis of the Melodinus alkaloids. Tetrahedron Lett 2015; 56:2983-2990. [PMID: 26120207 DOI: 10.1016/j.tetlet.2014.09.016] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
A series of highly substituted vinylcyclopropanes were prepared and examined as reaction partners in a palladium-catalyzed (3 + 2) cycloaddition with nitrostyrenes. Described herein are our efforts to synthesize an elusive 1,1-divinylcyclopropane by several distinct approaches, and to apply surrogates of this fragment toward the synthesis of the Melodinus alkaloids.
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Affiliation(s)
- Alexander F G Goldberg
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 E California Boulevard, MC 101-20, Pasadena, CA 91125, USA
| | - Robert A Craig
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 E California Boulevard, MC 101-20, Pasadena, CA 91125, USA
| | - Nicholas R O'Connor
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 E California Boulevard, MC 101-20, Pasadena, CA 91125, USA
| | - Brian M Stoltz
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 E California Boulevard, MC 101-20, Pasadena, CA 91125, USA
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Mustafa HH, Baird MS, Al Dulayymi JR, Tverezovskiy VV. A nine carbon homologating system for skip-conjugated polyenes. Chem Phys Lipids 2014; 183:34-42. [PMID: 24809236 DOI: 10.1016/j.chemphyslip.2014.04.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2014] [Revised: 04/21/2014] [Accepted: 04/22/2014] [Indexed: 10/25/2022]
Abstract
Ozonolysis of Z,Z,Z-cylonona-1,4,7-triene leads to a 1,9-difunctionalised Z,Z-3,6-nonadiene which is readily converted into a range of polyunsaturated pheromones and fatty acids.
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Affiliation(s)
- Hussein H Mustafa
- School of Chemistry, Bangor University, Bangor, Gwynedd LL57 2UW, United Kingdom
| | - Mark S Baird
- School of Chemistry, Bangor University, Bangor, Gwynedd LL57 2UW, United Kingdom.
| | - Juma'a R Al Dulayymi
- School of Chemistry, Bangor University, Bangor, Gwynedd LL57 2UW, United Kingdom
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Korbad BL, Lee SH. Simple and Efficient Procedure for Synthesis of N'-Arylamidines Using Trimethylaluminum. B KOREAN CHEM SOC 2013. [DOI: 10.5012/bkcs.2013.34.4.1266] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Oger C, Balas L, Durand T, Galano JM. Are alkyne reductions chemo-, regio-, and stereoselective enough to provide pure (Z)-olefins in polyfunctionalized bioactive molecules? Chem Rev 2012. [PMID: 23194255 DOI: 10.1021/cr3001753] [Citation(s) in RCA: 251] [Impact Index Per Article: 20.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Camille Oger
- Institut des Biomolécules Max Mousseron, UMR CNRS 5247, Université Montpellier 1, Faculté de Pharmacie, 15 av. Charles Flahault, Bât. D, 34093 Montpellier Cedex 05, France
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Wang T, Chen XL, Chen L, Zhan ZP. Atom-Economical Chemoselective Synthesis of 1,4-Diynes and Polysubstituted Furans/Pyrroles from Propargyl Alcohols and Terminal Alkynes. Org Lett 2011; 13:3324-7. [DOI: 10.1021/ol201054z] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Tao Wang
- Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, P. R. China
| | - Xin-liang Chen
- Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, P. R. China
| | - Li Chen
- Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, P. R. China
| | - Zhuang-ping Zhan
- Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, P. R. China
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12
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Synthesis and functional pharmacological effects on human bronchi of 20-hydroxyeicosatetraenoic acid. Chem Nat Compd 2011. [DOI: 10.1007/s10600-011-9765-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Abstract
The Foerster resonance energy transfer-based sensor, PENN, measures intracellular phospholipase A(2) (PLA(2)) activity in living cells and small organisms. In an attempt to modify the probe for the detection of particular isoforms, we altered the sn-2 fatty acid in such a way that either one or three of the Z double bonds in arachidonic acid were present in the sensor molecule. Arachidonic-acid-mimicking fatty acids were prepared by copper-mediated coupling reactions. Probes with a single double bond in the 5-position exhibited favorable substrate properties for secretory PLA(2)s. In vitro experiments with the novel unsaturated doubly labeled phosphatidylethanolamine derivatives showed preferred cleavage of the sensor PENN2 (one double bond) by the physiologically important group V sPLA(2), while the O-methyl-derivative PMNN2 was accepted best by the isoform from hog pancreas. For experiments in living cells, we demonstrated that bioactivation via S-acetylthioethyl (SATE) groups is essential for probe performance. Surprisingly, membrane-permeant versions of the new sensors that contained double bonds, PENN2 and PENN3, were only cleaved to a minor extent in HeLa cells while the saturated form, PENN, was well accepted.
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Affiliation(s)
- Oliver Wichmann
- O. Wichmann, Dr. C. Schultz, European Molecular Biology Laboratorium, Gene Expression Programme, Meyerhofstrasse 1, 69117 Heidelberg (Germany), Fax: (+49) 6221-387206, E-mail:
| | - Michael H. Gelb
- Dr. M. H. Gelb, Department of Chemistry and Biochemistry, Campus Box 351700, Seattle, WA 98195 (USA)
| | - Carsten Schultz
- O. Wichmann, Dr. C. Schultz, European Molecular Biology Laboratorium, Gene Expression Programme, Meyerhofstrasse 1, 69117 Heidelberg (Germany), Fax: (+49) 6221-387206, E-mail:
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Mahadevan A, Razdan RK. Further advances in the synthesis of endocannabinoid-related ligands. AAPS JOURNAL 2005; 7:E496-502. [PMID: 16353927 PMCID: PMC2750987 DOI: 10.1208/aapsj070250] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Recent advances in the synthesis of endocannabinoid-related ligands for the period 2001-2004 are covered in this review. During this period the first solid phase synthesis of anandamide (AEA) analogs was developed, which allows modification at both the head group and the end pentyl chain. Synthesis of water-soluble prodrugs of noladin ether was reported, which are chemically stable, rapidly release noladin ether under enzymatic conditions and are shown to reduce intraocular pressure. The structure-activity relationships (SAR) of alkylcarbamic acid aryl esters and the discovery of potent archidonylsulfonyl derivatives as fatty acid amide hydrolase (FAAH) inhibitors are summarized. Recent synthetic developments in the controversial area of anandamide membrane transporter (AMT) inhibitors are also discussed.
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Affiliation(s)
- Anu Mahadevan
- Organix, Inc, 240 Salem Street, Woburn, MA 01801, USA.
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