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Kokotou MG, Kokotos AC, Gkikas D, Mountanea OG, Mantzourani C, Almutairi A, Lei X, Ramanadham S, Politis PK, Kokotos G. Saturated Hydroxy Fatty Acids Exhibit a Cell Growth Inhibitory Activity and Suppress the Cytokine-Induced β-Cell Apoptosis. J Med Chem 2020; 63:12666-12681. [PMID: 33124824 DOI: 10.1021/acs.jmedchem.0c00844] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The field of bioactive lipids is ever expanding with discoveries of novel lipid molecules that promote human health. Adopting a lipidomic-assisted approach, two new families of previously unrecognized saturated hydroxy fatty acids (SHFAs), namely, hydroxystearic and hydroxypalmitic acids, consisting of isomers with the hydroxyl group at different positions, were identified in milk. Among the various regio-isomers synthesized, those carrying the hydroxyl at the 7- and 9-positions presented growth inhibitory activities against various human cancer cell lines, including A549, Caco-2, and SF268 cells. In addition, 7- and 9-hydroxystearic acids were able to suppress β-cell apoptosis induced by proinflammatory cytokines, increasing the possibility that they can be beneficial in countering autoimmune diseases, such as type 1 diabetes. 7-(R)-Hydroxystearic acid exhibited the highest potency both in cell growth inhibition and in suppressing β-cell death. We propose that such naturally occurring SHFAs may play a role in the promotion and protection of human health.
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Affiliation(s)
- Maroula G Kokotou
- Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis, Athens 15771, Greece
| | - Alexandros C Kokotos
- Center of Basic Research, Biomedical Research Foundation of the Academy of Athens, Athens 11527, Greece
| | - Dimitrios Gkikas
- Center of Basic Research, Biomedical Research Foundation of the Academy of Athens, Athens 11527, Greece
| | - Olga G Mountanea
- Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis, Athens 15771, Greece
| | - Christiana Mantzourani
- Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis, Athens 15771, Greece
| | - Abdulaziz Almutairi
- Department of Cell, Developmental, and Integrative Biology, University of Alabama at Birmingham, Birmingham, Alabama 35294, United States.,Comprehensive Diabetes Center, University of Alabama at Birmingham, Birmingham, Alabama 35294, United States
| | - Xiaoyong Lei
- Department of Cell, Developmental, and Integrative Biology, University of Alabama at Birmingham, Birmingham, Alabama 35294, United States.,Comprehensive Diabetes Center, University of Alabama at Birmingham, Birmingham, Alabama 35294, United States
| | - Sasanka Ramanadham
- Department of Cell, Developmental, and Integrative Biology, University of Alabama at Birmingham, Birmingham, Alabama 35294, United States.,Comprehensive Diabetes Center, University of Alabama at Birmingham, Birmingham, Alabama 35294, United States
| | - Panagiotis K Politis
- Center of Basic Research, Biomedical Research Foundation of the Academy of Athens, Athens 11527, Greece
| | - George Kokotos
- Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis, Athens 15771, Greece
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2
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Hydroxypyridinone-Diamine Hybrids as Potential Neuroprotective Agents in the PC12 Cell-Line Model of Alzheimer's Disease. Pharmaceuticals (Basel) 2019; 12:ph12040162. [PMID: 31717866 PMCID: PMC6958408 DOI: 10.3390/ph12040162] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Revised: 10/23/2019] [Accepted: 10/24/2019] [Indexed: 11/28/2022] Open
Abstract
There is an urgent need to propose effective treatments for Alzheimer’s disease (AD). Although the origin of the disease is poorly understood, several therapeutic options have been proposed. The new therapeutic approaches targeting biometal-mediated neurodegenerative pathways appear to be interesting ones. As a continuation of our preceding studies, two novel series of advanced glycation endproducts (AGE)/advanced lipid peroxidation endproducts (ALE) inhibitors have been developed as multifunctional scavengers. This extended work allowed us to highlight the new hydroxypyridinone-diamine hybrid IIa-3 bearing a C4 alkyl linker between the two pharmacophores. This derivative exhibited preserved potent capacities to trap reactive carbonyl species (vicinal diamine function) as well as reactive oxygen species and transition metals (hydroxypyridinone moiety) in comparison with previously described lead compound 1. In addition, its good predicted absorption, distribution, metabolism and excretion (ADME) properties were correlated with a better efficacy to inhibit in vitro methylglyoxal-induced apoptosis in neuronal-like PC12 cells. This new promising agent revealed improved druglikeness and ability to prevent biometal-mediated oxidative and carbonyl stress amplification involved in AD pathogenesis.
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Maegawa T, Nogata M, Hirose Y, Ohgami S, Nakamura A, Miki Y, Fujioka H. Transformation of Methylene Acetals to Bromoformates with a Combination of Trimethyl(phenylthio)silane and N-Bromosuccinimide. J Org Chem 2017. [DOI: 10.1021/acs.joc.7b00776] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Tomohiro Maegawa
- School
of Pharmaceutical Sciences, Kindai University, Higashi-osaka, Osaka 577-8502, Japan
| | - Misa Nogata
- School
of Pharmaceutical Sciences, Kindai University, Higashi-osaka, Osaka 577-8502, Japan
| | - Yuuka Hirose
- School
of Pharmaceutical Sciences, Kindai University, Higashi-osaka, Osaka 577-8502, Japan
| | - Shun Ohgami
- School
of Pharmaceutical Sciences, Kindai University, Higashi-osaka, Osaka 577-8502, Japan
| | - Akira Nakamura
- School
of Pharmaceutical Sciences, Kindai University, Higashi-osaka, Osaka 577-8502, Japan
| | - Yasuyoshi Miki
- School
of Pharmaceutical Sciences, Kindai University, Higashi-osaka, Osaka 577-8502, Japan
- Research
Organization of Science and Technology, Research Center for Drug Discovery and Pharmaceutical Science, Nojihigashi, Kusatsu, Shiga 525-8577, Japan
| | - Hiromichi Fujioka
- Graduate
School of Pharmaceutical Sciences, Osaka University, Suita, Osaka 565-0871, Japan
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Shen W, Hao X, Shi Y, Tian WS. Synthesis of (6R,12R)-6,12-Dimethylpentadecan-2-one, the Female-Produced Sex Pheromone from Banded Cucumber Beetle Diabrotica balteata, Based on a Chiron Approach. Nat Prod Commun 2015. [DOI: 10.1177/1934578x1501001236] [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
Herein we describe a synthesis of (6 R,12 R)-6,12-dimethylpentadecan-2-one (5), the female produced sex pheromone of banded cucumber beetle Diabrotica balteata Le Conte, from ( R)-4-methyl-δ-valerolactone, a methyl-branched chiron.
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Affiliation(s)
- Wei Shen
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Xiang Hao
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Yong Shi
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Wei-Sheng Tian
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
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5
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Abstract
Insect pheromones are some of the most interesting natural products because they are utilized for interspecific communication between various insects, such as beetles, moths, ants, and cockroaches. A large number of compounds of many kinds have been identified as pheromone components, reflecting the diversity of insect species. While this review deals only with chiral methyl-branched pheromones, the chemical structures of more than one hundred non-terpene compounds have been determined by applying excellent analytical techniques. Furthermore, their stereoselective syntheses have been achieved by employing trustworthy chiral sources and ingenious enantioselective reactions. The information has been reviewed here not only to make them available for new research but also to understand the characteristic chemical structures of the chiral pheromones. Since biosynthetic studies are still limited, it might be meaningful to examine whether the structures, particularly the positions and configurations of the branched methyl groups, are correlated with the taxonomy of the pheromone producers and also with the function of the pheromones in communication systems.
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Affiliation(s)
- Tetsu Ando
- Graduate School of Bio-Applications and Systems Engineering, Tokyo University of Agriculture and Technology, Koganei, Tokyo 184-8588, Japan.
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Metathesis-Mediated Synthesis of (R)-10-Methyl-2-tridecanone, the Southern Corn Rootworm Pheromone. Biosci Biotechnol Biochem 2014; 76:407-9. [DOI: 10.1271/bbb.110738] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Affiliation(s)
- Hélène Pellissier
- Aix Marseille Université, Centrale Marseille, CNRS, iSm2 UMR 7313 13397, Marseille, France
| | - Hervé Clavier
- Aix Marseille Université, Centrale Marseille, CNRS, iSm2 UMR 7313 13397, Marseille, France
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Vulovic B, Gruden-Pavlovic M, Matovic R, Saicic RN. Substrate Stereocontrol in the Intramolecular Organocatalyzed Tsuji–Trost Reaction: Enantioselective Synthesis of Allokainates. Org Lett 2013; 16:34-7. [DOI: 10.1021/ol4028557] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Bojan Vulovic
- Faculty
of Chemistry, University of Belgrade, Studentski trg 16, P.O. Box 51, 11158 Belgrade 118, Serbia
| | - Maja Gruden-Pavlovic
- Faculty
of Chemistry, University of Belgrade, Studentski trg 16, P.O. Box 51, 11158 Belgrade 118, Serbia
| | | | - Radomir N. Saicic
- Faculty
of Chemistry, University of Belgrade, Studentski trg 16, P.O. Box 51, 11158 Belgrade 118, Serbia
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9
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Villo P, Toom L, Eriste E, Vares L. Synthesis of Linear Aza and Thio Analogues of Acetogenins and Evaluation of Their Cytotoxicity. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300767] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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10
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Kumar P, Chowdhury PS, Pandey M. A Desymmetrization Approach to the Enantiopuresyn/anti-1,5-DiolsviaHydrolytic Kinetic Resolution (HKR) of Functionalizedmeso-Bis-Epoxides: Further Elaboration tosyn/syn-1,3,5-Triols and Application to the Formal Synthesis of Cryptocarya Diacetate. Adv Synth Catal 2013. [DOI: 10.1002/adsc.201300098] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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11
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Bredihhina J, Villo P, Andersons K, Toom L, Vares L. Hydrolytic and Aminolytic Kinetic Resolution of Terminal Bis-Epoxides. J Org Chem 2013; 78:2379-85. [DOI: 10.1021/jo3024335] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jevgenia Bredihhina
- Institute of Technology, University of Tartu, Nooruse 1, 50411,
Tartu, Estonia
| | - Piret Villo
- Institute of Technology, University of Tartu, Nooruse 1, 50411,
Tartu, Estonia
| | - Ka̅rlis Andersons
- Institute of Technology, University of Tartu, Nooruse 1, 50411,
Tartu, Estonia
| | - Lauri Toom
- Institute of Technology, University of Tartu, Nooruse 1, 50411,
Tartu, Estonia
| | - Lauri Vares
- Institute of Technology, University of Tartu, Nooruse 1, 50411,
Tartu, Estonia
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12
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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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14
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15
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Synthesis of enantiomerically enriched α,α-disubstituted β,γ-epoxy esters using hydrolytic kinetic resolution catalyzed by salenCo(III). ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.tetasy.2010.03.036] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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16
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Synthesis of 2,6-disubstituted piperidine alkaloids from ladybird beetles Calvia 10-guttata and Calvia 14-guttata. Tetrahedron 2010. [DOI: 10.1016/j.tet.2010.01.106] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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17
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Stereoselective synthesis of (R)-10-methyltridecan-2-one, the sex pheromone of the southern corn rootworm, using (4S)-benzylthiazolidinethione as a chiral auxiliary. ACTA ACUST UNITED AC 2009. [DOI: 10.1016/j.tetasy.2009.09.014] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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19
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Ferrarini RS, Comasseto JV, Dos Santos AA. Tellurium in organic synthesis: the enantioselective synthesis of the pheromone blend components of Mayetiola destructor, Drosophila mulleri and Contarinia pisi. ACTA ACUST UNITED AC 2009. [DOI: 10.1016/j.tetasy.2009.08.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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20
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Isakov VE, Kulinkovich OG. Highly stereoselective allylic ethylation with alkoxytitanacyclopropane reagents. Synthesis of (1R/S,7R)-1,7-dimethylnonyl propanoate, the Western corn rootworm sex attractant. Tetrahedron Lett 2008. [DOI: 10.1016/j.tetlet.2008.08.063] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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21
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Ho KP, Wong WL, Lam KM, Lai CP, Chan TH, Wong KY. A Simple and Effective Catalytic System for Epoxidation of Aliphatic Terminal Alkenes with Manganese(II) as the Catalyst. Chemistry 2008; 14:7988-96. [PMID: 18618538 DOI: 10.1002/chem.200800759] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Kam-Piu Ho
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom Kowloon, Hong Kong SAR
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22
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Abstract
The Walden memorial at the Technical University in Riga is pictured in the frontispiece to mark the recent centennial of the Walden inversion. This is a rare public monument to key events from the first era of exploration in stereocontrolled synthesis, and may be the only such monument to use the language of organic chemistry expressed at the molecular level. The reaction of racemic substrates with chiral nucleophiles is one of many methods currently known to achieve kinetic resolution, a phenomenon that ranks as the oldest and most general approach for the synthesis of highly enantioenriched substances. The first nonenzymatic kinetic resolutions as well as the original forms of the Walden inversion were studied in the 1890s. All of these investigations were conducted within the first generation following the demonstration that carbon is tetrahedral, and provided abundant evidence that the principles and importance of enantiocontrolled syntheses were understood. However, a reliable, rapid technique to quantify results and guide the optimization process was still lacking. Many decades passed before this problem was solved by the advent of HPLC and GLPC assays on chiral supports, which stimulated explosive growth in the synthesis of nonracemic substances by kinetic resolution. The Walden monument is accessible to passers-by for hands-on inspection as well as for contemplation and learning. In a similar way, kinetic resolution is experimentally accessible and can be thought-provoking at several levels. We follow the story of kinetic resolution from the early discoveries through fascinating historical milestones and conceptual developments, and close with a focus on modern techniques that maximize efficiency.
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Affiliation(s)
- Edwin Vedejs
- Department of Chemistry, University of Michigan, Ann Arbor, MI 48109, USA.
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23
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Soleymanpour A, Asl E, Nasseri M. Chemically Modified Carbon Paste Electrode for Determination of Sulfate Ion by Potentiometric Method. ELECTROANAL 2006. [DOI: 10.1002/elan.200503562] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Abstract
[reaction: see text] The synthesis of (+)-Sch 642305 (1) has been completed in 17 steps in 1.6% overall yield. Transannular Michael reaction of 2b with NaH in THF provided cyclohexenone 23 stereospecifically. Heating 23 in TFA/CDCl(3) provided a 3:1 equilibrium mixture of 23 and 25, which was hydrolyzed to give (+)-6-epi-Sch 642305 (24) and (+)-Sch 642305 (1), respectively.
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Rodriquez M, Bruno I, Cini E, Marchetti M, Taddei M, Gomez-Paloma L. Synthesis of 2-Amino-8-oxodecanoic Acids (Aodas) Present in Natural Hystone Deacetylase Inhibitors. J Org Chem 2005; 71:103-7. [PMID: 16388624 DOI: 10.1021/jo0518250] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
[reaction: see text] Differently substituted 2-amino-8-oxodecanoic acids (Aodas), present in naturally occurring inhibitors of hystone deacetylase (HDAC), have been prepared using a convergent approach. The configuration in position 2 was derived from enantiomerically pure allylglycine or glutamic acid, whereas the stereochemistry of the substituent in position 9 derived from lactic acid or glyceraldehyde derivatives. Starting from allylglycine, (S)-Aodas, protected at the nitrogen as Boc or Fmoc, were obtained in four steps in about 30% overall yield. These products have been used to prepare a simplified analogue of a natural cyclic tetrapeptide HDAC inhibitor by SPPS.
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Affiliation(s)
- Manuela Rodriquez
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Salerno, Via Ponte don Melillo, 84084 Fisciano, Salerno, Italy
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Vedejs E, Jure M. Effizienz in der nichtenzymatischen kinetischen Racematspaltung. Angew Chem Int Ed Engl 2005. [DOI: 10.1002/ange.200460842] [Citation(s) in RCA: 229] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Kureshy RI, Singh S, Khan NUH, Abdi SHR, Ahmad I, Bhatt A, Jasra RV. Improved catalytic activity of homochiral dimeric cobalt-salen complex in hydrolytic kinetic resolution of terminal racemic epoxides. Chirality 2005; 17:590-4. [PMID: 16200537 DOI: 10.1002/chir.20196] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Enantiomerically pure epoxides (99%, ee) and diols (98%, ee) from racemic epichlorohydrin, 1,2-epoxypropane, 1,2-epoxyhexane, 1,2-epoxyoctane, and 1,2-epoxydodecane were obtained in 2-12 h by hydrolytic kinetic resolution (HKR) using the recyclable dimeric homochiral Co(III)-salen complex 1' (0.2 mol %) derived from 5,5-(2',2'-dimethylpropane)-di-[(R,R)-{N-(3-tert-butylsalicylidine)-N'-(3',5'-di-tert-butylsalicylidine)}-1,2-cyclohexanediamine] with cobalt(II) acetate. Unlike its monomeric version, the catalyst could be recycled several times without loss in performance. The use of BF(4) as counter ion in HKR reactions was also investigated.
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Affiliation(s)
- Rukhsana I Kureshy
- Silicates and Catalysis Discipline, Central Salt and Marine Chemicals Research Institute (CSMCRI), Bhavnagar, India.
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Hayes PY, Fletcher MT, Chow S, McGrath MJ, Tu YQ, Zhang H, Hungerford NL, McErlean CSP, Stok JE, Moore CJ, DeVoss JJ, Kitching W. Insect chemistry and chirality. Chirality 2004; 15 Suppl:S116-27. [PMID: 12884383 DOI: 10.1002/chir.10273] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Examination of the chemistry of a number of Australian insect species provided examples of unusual structures and encouraged determinations of their absolute stereochemistry by stereocontrolled syntheses and chromatographic comparisons. Inter alia, studies with the fruit-spotting bug (Amblypelta nitida), certain parasitic wasps (Biosteres sp.), the aposematic shield bug (Cantao parentum), and various species of scarab grubs are summarized. The determination of enantiomeric excesses (ee's) for component epoxides, lactones, spiroacetals, and allenes are described. Stereochemical and related aspects of the biosynthesis of spiroacetals in certain fruit-fly species (Bactrocerae sp.) are also presented.
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Affiliation(s)
- Patricia Y Hayes
- Department of Chemistry, The University of Queensland, Brisbane, Australia
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31
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Lamers YM, Rusu G, Wijnberg JB, de Groot A. Synthesis of chiral methyl-branched linear pheromones starting from (+)-aromadendrene. Part 7. Tetrahedron 2003. [DOI: 10.1016/j.tet.2003.09.085] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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32
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Cryle MJ, Matovic NJ, De Voss JJ. Products of cytochrome P450(BioI) (CYP107H1)-catalyzed oxidation of fatty acids. Org Lett 2003; 5:3341-4. [PMID: 12943422 DOI: 10.1021/ol035254e] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
[reaction: see text] Oxidation of tetradecanoic and hexadecanoic acids by cytochrome P450(BioI) (CYP107H1) produces mainly the 11-, 12-, and 13-hydroxy C(14) fatty acids and the 11- to 15-hydroxy C(16) fatty acids, respectively. In contrast to previous reports, terminal hydroxylation is not observed. The enantiospecificity of fatty acid hydroxylation by P450(BioI) was also determined, and the enzyme was shown to be moderately selective for production of the (R)-alcohols.
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Affiliation(s)
- Max J Cryle
- Department of Chemistry, University of Queensland, St. Lucia, Brisbane 4072, Australia
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33
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Highly enantioselective resolution of terminal epoxides with cross-linked polymeric salen–Co(III) complexes. Tetrahedron Lett 2003. [DOI: 10.1016/s0040-4039(03)01786-6] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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34
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