1
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An Improved Protocol for the Morita‐Baylis‐Hillman Reaction Allows Unprecedented Broad Synthetic Scope. European J Org Chem 2022. [DOI: 10.1002/ejoc.202101448] [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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2
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Hilker S, Posevins D, Unelius CR, Bäckvall JE. Chemoenzymatic Dynamic Kinetic Asymmetric Transformations of β-Hydroxyketones. Chemistry 2021; 27:15623-15627. [PMID: 34428339 PMCID: PMC9293354 DOI: 10.1002/chem.202102683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Indexed: 11/17/2022]
Abstract
Herein we report on the development and application of chemoenzymatic Dynamic Kinetic Asymmetric Transformation (DYKAT) of α‐substituted β‐hydroxyketones (β‐HKs), using Candida antartica lipase B (CALB) as transesterification catalyst and a ruthenium complex as epimerization catalyst. An operationally simple protocol allows for an efficient preparation of highly enantiomerically enriched α‐substituted β‐oxoacetates. The products were obtained in yields up to 95 % with good diastereomeric ratios.
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Affiliation(s)
- Simon Hilker
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, 10691, Stockholm, Sweden
| | - Daniels Posevins
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, 10691, Stockholm, Sweden
| | - C Rikard Unelius
- Department of Chemistry and Biomedical Science, Linnaeus University, 39231, Kalmar, Sweden
| | - Jan-E Bäckvall
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, 10691, Stockholm, Sweden
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3
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Shim JH, Kim MJ, Lee JY, Kim KH, Ha DC. Organocatalytic asymmetric aldol reaction using protonated chiral 1,2-diamines. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.152295] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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4
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Recent examples of the use of biocatalysts with high accessibility and availability in natural product synthesis. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.05.053] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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5
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Reis AC, Neta PLS, Jordão JP, Moura JIL, Vidal DM, Zarbin PHG, Fávaro CF. Aggregation Pheromone of the Bearded Weevil, Rhinostomus barbirostris (Coleoptera: Curculionidae): Identification, Synthesis, Absolute Configuration and Bioactivity. J Chem Ecol 2018; 44:463-470. [PMID: 29658050 DOI: 10.1007/s10886-018-0957-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Revised: 03/29/2018] [Accepted: 04/09/2018] [Indexed: 11/28/2022]
Abstract
The bearded weevil, Rhinostomus barbirostris (Coleoptera: Curculionidae: Dryophthorinae), attacks coconut trees, oil palms and other species of Arecaceae. Besides direct damage, R. barbirostris may be a vector of diseases in coconut and oil palms, such as stem bleeding (resinosis) and red ring disease. Currently, the only method to control this weevil is by visual observation of damage and removal of infected plants. Semiochemical-based trapping could improve the effectiveness of monitoring and management of R. barbirostris. In comparisons of volatiles released by R. barbirostris males and females by gas chromatography (GC) two male-specific compounds were observed. GC-mass spectrometry (MS) and GC-Fourier transform-infrared (FTIR) analyses of the natural compounds suggested these were diastereoisomers of 5-hydroxy-4-methylheptan-3-one, also known as sitophilure, a pheromone component of other dryophthorine species. Synthesis of the mixture of all four stereoisomers of sitophilure was performed in two steps, and the chemical structures were confirmed by comparing GC retention times and MS and FTIR spectra of natural and synthetic compounds. The absolute configurations of the two male-specific compounds were elucidated by enantioselective GC; the major component was the (4S,5R)-isomer, and the minor component (4S,5S)-sitophilure. In analyses by GC-electroantennography (EAG) the antennae of male and female R. barbirostris only responded to the (4S,5R)-isomer of the synthetic sitophilure. The stereoisomeric mixture of sitophilure was attractive to both sexes of R. barbirostris in laboratory experiments in the presence of sugar cane volatiles, and a similar result was obtained in a preliminary field trapping test.
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Affiliation(s)
- Analú C Reis
- Department of Exact and Technological Sciences, State University of Santa Cruz, Ilhéus, BA, 45662-900, Brazil
| | - Palmira L S Neta
- Department of Agrarian and Environmental Sciences, State University of Santa Cruz, Ilhéus, BA, 45662-900, Brazil
| | - Jéssica P Jordão
- Department of Agrarian and Environmental Sciences, State University of Santa Cruz, Ilhéus, BA, 45662-900, Brazil
| | | | - Diogo M Vidal
- Department of Chemistry, Federal University of Minas Gerais, Belo Horizonte, MG, 31270-901, Brazil
| | - Paulo H G Zarbin
- Department of Chemistry, Federal University of Paraná, Curitiba, PR, 81531-980, Brazil
| | - Carla F Fávaro
- Department of Exact and Technological Sciences, State University of Santa Cruz, Ilhéus, BA, 45662-900, Brazil.
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6
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Nagai T, Sakurai S, Natori N, Hataoka M, Kinoshita T, Inoue H, Hanaya K, Shoji M, Sugai T. Synthesis of enantiomerically enriched drug precursors and an insect pheromone via reduction of ketones using commercially available carbonyl reductase screening kit “Chiralscreen® OH”. Bioorg Med Chem 2018; 26:1304-1313. [DOI: 10.1016/j.bmc.2017.03.067] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2017] [Revised: 03/22/2017] [Accepted: 03/31/2017] [Indexed: 12/31/2022]
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7
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Tyrikos-Ergas T, Giannopoulos V, Smonou I. An Efficient Chemoenzymatic Approach towards the Synthesis of Rugulactone. Molecules 2018; 23:E640. [PMID: 29534553 PMCID: PMC6017073 DOI: 10.3390/molecules23030640] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Revised: 03/05/2018] [Accepted: 03/07/2018] [Indexed: 12/05/2022] Open
Abstract
Rugulactone is a natural product isolated from the plant Cryptocarya rugulosa. It has shown very important biological activity as an inhibitor of the nuclear factor κB (NF-κB) activation pathway. A new chemoenzymatic approach towards the synthesis of rugulactone is presented here. The chirality, induced to the key intermediate by a stereoselective enzymatic reduction utilizing NADPH-dependent ketoreductase, is described in detail.
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Affiliation(s)
- Theodore Tyrikos-Ergas
- Department of Chemistry, University of Crete, Vasilika Vouton, 71003 Heraklion, Crete, Greece.
| | - Vasileios Giannopoulos
- Department of Chemistry, University of Crete, Vasilika Vouton, 71003 Heraklion, Crete, Greece.
| | - Ioulia Smonou
- Department of Chemistry, University of Crete, Vasilika Vouton, 71003 Heraklion, Crete, Greece.
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8
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Trost BM, Stivala CE, Fandrick DR, Hull KL, Huang A, Poock C, Kalkofen R. Total Synthesis of (-)-Lasonolide A. J Am Chem Soc 2016; 138:11690-701. [PMID: 27548113 PMCID: PMC5728428 DOI: 10.1021/jacs.6b05127] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The lasonolides are novel polyketides that have displayed remarkable biological activity in vitro against a variety of cancer cell lines. Herein we describe our first-generation approach to the formal synthesis of lasonolide A. The key findings from these studies ultimately allowed us to go on and complete a total synthesis of lasonolide A. The convergent approach unites two highly complex fragments utilizing a Ru-catalyzed alkene-alkyne coupling. This type of coupling typically generates branched products; however, through a detailed investigation, we are now able to demonstrate that subtle structural changes to the substrates can alter the selectivity to favor the formation of the linear product. The synthesis of the fragments features a number of atom-economical transformations which are highlighted by the discovery of an engineered enzyme to perform a dynamic kinetic reduction of a β-ketoester to establish the absolute stereochemistry of the southern tetrahydropyran ring with high levels of enantioselectivity.
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Affiliation(s)
- Barry M. Trost
- Department of Chemistry, Stanford University, Stanford, California 94305-5080
| | - Craig E. Stivala
- Department of Chemistry, Stanford University, Stanford, California 94305-5080
| | - Daniel R. Fandrick
- Department of Chemistry, Stanford University, Stanford, California 94305-5080
| | - Kami L. Hull
- Department of Chemistry, Stanford University, Stanford, California 94305-5080
| | - Audris Huang
- Department of Chemistry, Stanford University, Stanford, California 94305-5080
| | - Caroline Poock
- Department of Chemistry, Stanford University, Stanford, California 94305-5080
| | - Rainer Kalkofen
- Department of Chemistry, Stanford University, Stanford, California 94305-5080
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9
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Halder J, Das D, Nanda S. Enantioselective biocatalytic reduction of 2,2-disubstituted ethylacetoacetates: an indirect desymmetrization approach for the synthesis of enantiopure (S)-4-hydroxy-3,3-disubstituted pentane-2-ones. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.tetasy.2015.09.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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10
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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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11
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Dascier D, Kambourakis S, Hua L, Rozzell JD, Stewart JD. Influence of Cofactor Regeneration Strategies on Preparative-Scale, Asymmetric Carbonyl Reductions by Engineered Escherichia coli.. Org Process Res Dev 2014; 18:793-800. [PMID: 25067899 PMCID: PMC4105172 DOI: 10.1021/op400312n] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2013] [Indexed: 11/29/2022]
Abstract
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This
study was designed to determine whether whole cells or crude enzyme
extracts are more effective for preparative-scale ketone reductions
by dehydrogenases as well as learning which cofactor regeneration
scheme is most effective. Based on results from three representative
ketone substrates (an α-fluoro-β-keto ester, a bis-trifluoromethylated acetophenone, and a symmetrical
β-diketone), our results demonstrate that several nicotinamide
cofactor regeneration strategies can be applied to preparative-scale
dehydrogenase-catalyzed reactions successfully.
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Affiliation(s)
- Dimitri Dascier
- Department of Chemistry, University of Florida , 126 Sisler Hall, Gainesville, Florida 32611, United States
| | - Spiros Kambourakis
- Codexis, Inc., Penobscot Drive 200, Redwood City, California 94063, United States
| | - Ling Hua
- Department of Chemistry, University of Florida , 126 Sisler Hall, Gainesville, Florida 32611, United States
| | - J David Rozzell
- Codexis, Inc., Penobscot Drive 200, Redwood City, California 94063, United States
| | - Jon D Stewart
- Department of Chemistry, University of Florida , 126 Sisler Hall, Gainesville, Florida 32611, United States
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12
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Gupta P, Mahajan N, Taneja SC. Recent advances in the stereoselective synthesis of 1,3-diols using biocatalysts. Catal Sci Technol 2013. [DOI: 10.1039/c3cy00125c] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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13
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Kalaitzakis D, Smonou I. Chemoenzymatic Synthesis of Stegobinone and Stegobiol, Components of the Natural Sex Pheromone of the Drugstore Beetle (Stegobium paniceum L.). European J Org Chem 2011. [DOI: 10.1002/ejoc.201101319] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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14
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García-Urdiales E, Alfonso I, Gotor V. Update 1 of: Enantioselective Enzymatic Desymmetrizations in Organic Synthesis. Chem Rev 2011; 111:PR110-80. [DOI: 10.1021/cr100330u] [Citation(s) in RCA: 130] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Eduardo García-Urdiales
- Departamento de Química
Orgánica e Inorgánica, Facultad de Química, Universidad
de Oviedo, Julián Clavería, 8, 33006 Oviedo, Spain,
and
| | - Ignacio Alfonso
- Departamento de Química Biológica
y Modelización Molecular, Instituto de Química Avanzada
de Cataluña (IQAC, CSIC), Jordi Girona, 18-26, 08034, Barcelona,
Spain
| | - Vicente Gotor
- Departamento de Química
Orgánica e Inorgánica, Facultad de Química, Universidad
de Oviedo, Julián Clavería, 8, 33006 Oviedo, Spain,
and
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15
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Kalaitzakis D, Smonou I. A Two-Step, One-Pot Enzymatic Synthesis of 2-Substituted 1,3-Diols. J Org Chem 2010; 75:8658-61. [DOI: 10.1021/jo101519t] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | - Ioulia Smonou
- Department of Chemistry, University of Crete, Heraklion 71003, Crete, Greece
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16
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17
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Bohman B, Unelius CR. Synthesis of all four stereoisomers of 5-hydroxy-4-methyl-3-heptanone using plants and oyster mushrooms. Tetrahedron 2009. [DOI: 10.1016/j.tet.2009.08.049] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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18
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Ravía SP, Carrera I, Seoane GA, Vero S, Gamenara D. Novel fungi-catalyzed reduction of α-alkyl-β-keto esters. ACTA ACUST UNITED AC 2009. [DOI: 10.1016/j.tetasy.2009.05.031] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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20
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Wallner SR, Lavandera I, Mayer SF, Öhrlein R, Hafner A, Edegger K, Faber K, Kroutil W. Stereoselective anti-Prelog reduction of ketones by whole cells of Comamonas testosteroni in a ‘substrate-coupled’ approach. ACTA ACUST UNITED AC 2008. [DOI: 10.1016/j.molcatb.2008.02.009] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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21
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Lavandera I, Höller B, Kern A, Ellmer U, Glieder A, de Wildeman S, Kroutil W. Asymmetric anti-Prelog reduction of ketones catalysed by Paracoccus pantotrophus and Comamonas sp. cells via hydrogen transfer. ACTA ACUST UNITED AC 2008. [DOI: 10.1016/j.tetasy.2008.08.005] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Kalaitzakis D, Smonou I. A Convenient Method for the Assignment of Relative Configuration of Acyclic α-Alkyl-β-hydroxy Carbonyl Compounds by 1H NMR. J Org Chem 2008; 73:3919-21. [DOI: 10.1021/jo800066a] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Dimitris Kalaitzakis
- Department of Chemistry, University of Crete, Voutes-Iraklio 71003, Crete, Greece
| | - Ioulia Smonou
- Department of Chemistry, University of Crete, Voutes-Iraklio 71003, Crete, Greece
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Kalaitzakis D, Kambourakis S, Rozzell DJ, Smonou I. Stereoselective chemoenzymatic synthesis of sitophilate: a natural pheromone. ACTA ACUST UNITED AC 2007. [DOI: 10.1016/j.tetasy.2007.10.008] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Fischer T, Pietruszka J. Efficient Synthesis of Either Enantiomer of Ethyl 5-Hydroxyhept-6-enoate. Adv Synth Catal 2007. [DOI: 10.1002/adsc.200700086] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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25
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Manam RR, Macherla VR, Potts BC. Stereoselective enzymatic reduction of keto-salinosporamide to (−)-salinosporamide A (NPI-0052). Tetrahedron Lett 2007. [DOI: 10.1016/j.tetlet.2007.02.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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