1
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Fansher DJ, Palmer DRJ. A Type 1 Aldolase, NahE, Catalyzes a Stereoselective Nitro-Michael Reaction: Synthesis of β-Aryl-γ-nitrobutyric Acids. Angew Chem Int Ed Engl 2023; 62:e202214539. [PMID: 36484780 DOI: 10.1002/anie.202214539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 11/27/2022] [Accepted: 12/07/2022] [Indexed: 12/13/2022]
Abstract
Michael addition reactions are highly useful in organic synthesis and are commonly accomplished using organocatalysts. However, the corresponding biocatalytic Michael additions are rare, typically lack synthetically useful substrate scope, and suffer from low stereoselectivity. Herein we report a biocatalytic nitro-Michael addition, catalyzed by NahE, that proceeds with low catalyst loading at room temperature in moderate to excellent enantioselectivity and high yields. A series of β-nitrostyrenes reacted with pyruvate in the presence of NahE to give, after oxidative decarboxylation, β-aryl-γ-nitrobutyric acids in up to 99 % yield without need for chromatography, providing a simple preparative-scale route to chiral GABA analogues. This reaction represents the first example of an aldolase displaying promiscuous Michaelase activity and opens the use of nitroalkenes in place of aldehydes as substrates for aldolases.
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Affiliation(s)
- Douglas J Fansher
- Department of Chemistry, University of Saskatchewan, Saskatoon, Saskatchewan, S7N 5C9, Canada
| | - David R J Palmer
- Department of Chemistry, University of Saskatchewan, Saskatoon, Saskatchewan, S7N 5C9, Canada
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2
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Fang J, Turner LE, Chang MCY. Biocatalytic Asymmetric Construction of Secondary and Tertiary Fluorides from β-Fluoro-α-Ketoacids. Angew Chem Int Ed Engl 2022; 61:e202201602. [PMID: 35165991 DOI: 10.1002/anie.202201602] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Indexed: 12/24/2022]
Abstract
Fluorine is a critical element for the design of bioactive compounds, driving advances in selective and sustainable fluorination. However, stereogenic tertiary fluorides pose a synthetic challenge and are thus present in only a few approved drugs (fluticasone, solithromycin, and sofosbuvir). The aldol reaction of fluorinated donors provides an atom-economical approach to asymmetric C-F motifs via C-C bond formation. We report that the type II pyruvate aldolase HpcH and engineered variants perform addition of β-fluoro-α-ketoacids (including fluoropyruvate, β-fluoro-α-ketobutyrate, and β-fluoro-α-ketovalerate) to diverse aldehydes. The reactivity of HpcH towards these fluoro-donors grants access to enantiopure secondary or tertiary fluorides. In addition to representing the first synthesis of tertiary fluorides via biocatalytic carboligation, the afforded products could improve the diversity of fluorinated building blocks and enable the synthesis of fluorinated drug analogs.
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Affiliation(s)
- Jason Fang
- Department of Chemistry, University of California, Berkeley, Berkeley, CA 94720, USA
| | - Laura E Turner
- Department of Chemistry, University of California, Berkeley, Berkeley, CA 94720, USA
| | - Michelle C Y Chang
- Department of Chemistry, University of California, Berkeley, Berkeley, CA 94720, USA.,Department of Chemical & Biomolecular Engineering, University of California, Berkeley, Berkeley, CA 94720, USA.,Department of Molecular & Cell Biology, University of California, Berkeley, Berkeley, CA 94720, USA
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3
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Fang J, Turner LE, Chang MCY. Biocatalytic Asymmetric Construction of Secondary and Tertiary Fluorides from β‐Fluoro‐α‐Ketoacids**. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202201602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jason Fang
- Department of Chemistry University of California, Berkeley Berkeley CA 94720 USA
| | - Laura E. Turner
- Department of Chemistry University of California, Berkeley Berkeley CA 94720 USA
| | - Michelle C. Y. Chang
- Department of Chemistry University of California, Berkeley Berkeley CA 94720 USA
- Department of Chemical & Biomolecular Engineering University of California, Berkeley Berkeley CA 94720 USA
- Department of Molecular & Cell Biology University of California, Berkeley Berkeley CA 94720 USA
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4
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Nieto-Domínguez M, Nikel PI. Intersecting Xenobiology and Neometabolism To Bring Novel Chemistries to Life. Chembiochem 2020; 21:2551-2571. [PMID: 32274875 DOI: 10.1002/cbic.202000091] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 04/09/2020] [Indexed: 12/19/2022]
Abstract
The diversity of life relies on a handful of chemical elements (carbon, oxygen, hydrogen, nitrogen, sulfur and phosphorus) as part of essential building blocks; some other atoms are needed to a lesser extent, but most of the remaining elements are excluded from biology. This circumstance limits the scope of biochemical reactions in extant metabolism - yet it offers a phenomenal playground for synthetic biology. Xenobiology aims to bring novel bricks to life that could be exploited for (xeno)metabolite synthesis. In particular, the assembly of novel pathways engineered to handle nonbiological elements (neometabolism) will broaden chemical space beyond the reach of natural evolution. In this review, xeno-elements that could be blended into nature's biosynthetic portfolio are discussed together with their physicochemical properties and tools and strategies to incorporate them into biochemistry. We argue that current bioproduction methods can be revolutionized by bridging xenobiology and neometabolism for the synthesis of new-to-nature molecules, such as organohalides.
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Affiliation(s)
- Manuel Nieto-Domínguez
- The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, 2800, Kongens Lyngby, Denmark
| | - Pablo I Nikel
- The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, 2800, Kongens Lyngby, Denmark
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5
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Li H, Hu J, Wei H, Solomon PS, Stubbs KA, Chooi YH. Biosynthesis of a Tricyclo[6.2.2.0 2,7 ]dodecane System by a Berberine Bridge Enzyme-Like Aldolase. Chemistry 2019; 25:15062-15066. [PMID: 31553484 DOI: 10.1002/chem.201904360] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2019] [Indexed: 11/06/2022]
Abstract
The aldol reaction is one of the most fundamental stereocontrolled carbon-carbon bond-forming reactions and is mainly catalyzed by aldolases in nature. Despite the fact that the aldol reaction has been widely proposed to be involved in fungal secondary metabolite biosynthesis, a dedicated aldolase that catalyzes stereoselective aldol reactions has only rarely been reported in fungi. Herein, we activated a cryptic polyketide biosynthetic gene cluster that was upregulated in the fungal wheat pathogen Parastagonospora nodorum during plant infection; this resulted in the production of the phytotoxic stemphyloxin II (1). Through heterologous reconstruction of the biosynthetic pathway and in vitro assay by using cell-free lysate from Aspergillus nidulans, we demonstrated that a berberine bridge enzyme (BBE)-like protein SthB catalyzes an intramolecular aldol reaction to establish the bridged tricyclo[6.2.2.02,7 ]dodecane skeleton in the post-assembly tailoring step. The characterization of SthB as an aldolase enriches the catalytic toolbox of classic reactions and the functional diversities of the BBE superfamily of enzymes.
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Affiliation(s)
- Hang Li
- School of Molecular Sciences, The University of Western Australia, Perth, WA, 6009, Australia
| | - Jinyu Hu
- School of Molecular Sciences, The University of Western Australia, Perth, WA, 6009, Australia
| | - Haochen Wei
- Division of Plant Science, Research School of Biology, The Australian National University, Canberra, ACT, 2601, Australia
| | - Peter S Solomon
- Division of Plant Science, Research School of Biology, The Australian National University, Canberra, ACT, 2601, Australia
| | - Keith A Stubbs
- School of Molecular Sciences, The University of Western Australia, Perth, WA, 6009, Australia
| | - Yit-Heng Chooi
- School of Molecular Sciences, The University of Western Australia, Perth, WA, 6009, Australia
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6
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Izquierdo J, Demurget N, Landa A, Brinck T, Mercero JM, Dinér P, Oiarbide M, Palomo C. Asymmetric Synthesis of Adjacent Tri- and Tetrasubstituted Carbon Stereocenters: Organocatalytic Aldol Reaction of an Hydantoin Surrogate with Azaarene 2-Carbaldehydes. Chemistry 2019; 25:12431-12438. [PMID: 31318987 DOI: 10.1002/chem.201902817] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Revised: 07/15/2019] [Indexed: 12/13/2022]
Abstract
A bifunctional amine/squaramide catalyst promoted direct aldol addition of an hydantoin surrogate to pyridine 2-carbaldehyde N-oxides to afford adducts bearing two vicinal tertiary/quaternary carbons in high diastereo- and enantioselectivity (d.r. up to >20:1; ee up to 98 %) is reported. Acid hydrolysis of adducts followed by reduction of the N-oxide group yields enantiopure carbinol-tethered quaternary hydantoin-azaarene conjugates with densely functionalized skeletons. DFT studies of the potential energy surface (B3LYP/6-31+G(d)+CPCM (dichloromethane)) of the reaction correlate the activity of different catalysts and support an intramolecular hydrogen-bond-assisted activation of the squaramide moiety in the transition state of the catalytic reaction.
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Affiliation(s)
- June Izquierdo
- Departamento de Química Orgánica I, Universidad del País Vasco UPV/EHU, Manuel Lardizabal 3, 20018, San Sebastián, Spain
| | - Noémie Demurget
- Departamento de Química Orgánica I, Universidad del País Vasco UPV/EHU, Manuel Lardizabal 3, 20018, San Sebastián, Spain
| | - Aitor Landa
- Departamento de Química Orgánica I, Universidad del País Vasco UPV/EHU, Manuel Lardizabal 3, 20018, San Sebastián, Spain
| | - Tore Brinck
- Department of Chemistry, KTH Royal Institute of, Technology, Teknikringen 30, 100 44, Stockholm, Sweden
| | - Jose M Mercero
- Kimika Fakultatea, Euskal Herriko Unibertsitatea, (UPV/EHU) & Donostia International Physics Center (DIPC), Donostia, Spain
| | - Peter Dinér
- Department of Chemistry, KTH Royal Institute of, Technology, Teknikringen 30, 100 44, Stockholm, Sweden
| | - Mikel Oiarbide
- Departamento de Química Orgánica I, Universidad del País Vasco UPV/EHU, Manuel Lardizabal 3, 20018, San Sebastián, Spain
| | - Claudio Palomo
- Departamento de Química Orgánica I, Universidad del País Vasco UPV/EHU, Manuel Lardizabal 3, 20018, San Sebastián, Spain
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7
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Fang J, Hait D, Head‐Gordon M, Chang MCY. Chemoenzymatic Platform for Synthesis of Chiral Organofluorines Based on Type II Aldolases. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201906805] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jason Fang
- Department of Chemistry University of California, Berkeley Berkeley CA 94720 USA
- Chemical Sciences Division Laurence Berkeley National Laboratory Berkeley CA 94720 USA
| | - Diptarka Hait
- Department of Chemistry University of California, Berkeley Berkeley CA 94720 USA
- Chemical Sciences Division Laurence Berkeley National Laboratory Berkeley CA 94720 USA
| | - Martin Head‐Gordon
- Department of Chemistry University of California, Berkeley Berkeley CA 94720 USA
- Chemical Sciences Division Laurence Berkeley National Laboratory Berkeley CA 94720 USA
| | - Michelle C. Y. Chang
- Department of Chemistry University of California, Berkeley Berkeley CA 94720 USA
- Chemical Sciences Division Laurence Berkeley National Laboratory Berkeley CA 94720 USA
- Department of Molecular & Cell Biology University of California, Berkeley Berkeley CA 94720 USA
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8
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Fang J, Hait D, Head-Gordon M, Chang MCY. Chemoenzymatic Platform for Synthesis of Chiral Organofluorines Based on Type II Aldolases. Angew Chem Int Ed Engl 2019; 58:11841-11845. [PMID: 31240790 DOI: 10.1002/anie.201906805] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Indexed: 12/15/2022]
Abstract
Aldolases are C-C bond forming enzymes that have become prominent tools for sustainable synthesis of complex synthons. However, enzymatic methods of fluorine incorporation into such compounds are lacking due to the rarity of fluorine in nature. Recently, the use of fluoropyruvate as a non-native aldolase substrate has arisen as a solution. Here, we report that the type II HpcH aldolases efficiently catalyze fluoropyruvate addition to diverse aldehydes, with exclusive (3S)-selectivity at fluorine that is rationalized by DFT calculations on a mechanistic model. We also measure the kinetic parameters of aldol addition and demonstrate engineering of the hydroxyl group stereoselectivity. Our aldolase collection is then employed in the chemoenzymatic synthesis of novel fluoroacids and ester derivatives in high stereopurity (d.r. 80-98 %). The compounds made available by this method serve as precursors to fluorinated analogs of sugars, amino acids, and other valuable chiral building blocks.
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Affiliation(s)
- Jason Fang
- Department of Chemistry, University of California, Berkeley, Berkeley, CA, 94720, USA.,Chemical Sciences Division, Laurence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Diptarka Hait
- Department of Chemistry, University of California, Berkeley, Berkeley, CA, 94720, USA.,Chemical Sciences Division, Laurence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Martin Head-Gordon
- Department of Chemistry, University of California, Berkeley, Berkeley, CA, 94720, USA.,Chemical Sciences Division, Laurence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Michelle C Y Chang
- Department of Chemistry, University of California, Berkeley, Berkeley, CA, 94720, USA.,Chemical Sciences Division, Laurence Berkeley National Laboratory, Berkeley, CA, 94720, USA.,Department of Molecular & Cell Biology, University of California, Berkeley, Berkeley, CA, 94720, USA
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9
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Laurent V, Uzel A, Hélaine V, Nauton L, Traïkia M, Gefflaut T, Salanoubat M, de Berardinis V, Lemaire M, Guérard‐Hélaine C. Exploration of Aldol Reactions Catalyzed by Stereoselective Pyruvate Aldolases with 2‐Oxobutyric Acid as Nucleophile. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900128] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- V. Laurent
- Université Clermont AuvergneCNRS, SIGMA Clermont, Institut de Chimie de Clermont-Ferrand 63000 Clermont-Ferrand France
| | - A. Uzel
- Université Clermont AuvergneCNRS, SIGMA Clermont, Institut de Chimie de Clermont-Ferrand 63000 Clermont-Ferrand France
| | - V. Hélaine
- Université Clermont AuvergneCNRS, SIGMA Clermont, Institut de Chimie de Clermont-Ferrand 63000 Clermont-Ferrand France
| | - L. Nauton
- Université Clermont AuvergneCNRS, SIGMA Clermont, Institut de Chimie de Clermont-Ferrand 63000 Clermont-Ferrand France
| | - M. Traïkia
- Université Clermont AuvergneCNRS, SIGMA Clermont, Institut de Chimie de Clermont-Ferrand 63000 Clermont-Ferrand France
| | - T. Gefflaut
- Université Clermont AuvergneCNRS, SIGMA Clermont, Institut de Chimie de Clermont-Ferrand 63000 Clermont-Ferrand France
| | - M. Salanoubat
- Génomique Métabolique, Génoscope, Institut François Jacob, CEA, CNRS, Univ. EvryUniversité Paris-Saclay 91057 Evry France
| | - V. de Berardinis
- Génomique Métabolique, Génoscope, Institut François Jacob, CEA, CNRS, Univ. EvryUniversité Paris-Saclay 91057 Evry France
| | - M. Lemaire
- Université Clermont AuvergneCNRS, SIGMA Clermont, Institut de Chimie de Clermont-Ferrand 63000 Clermont-Ferrand France
| | - C. Guérard‐Hélaine
- Université Clermont AuvergneCNRS, SIGMA Clermont, Institut de Chimie de Clermont-Ferrand 63000 Clermont-Ferrand France
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10
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Hernández K, Szekrenyi A, Clapés P. Nucleophile Promiscuity of Natural and Engineered Aldolases. Chembiochem 2018; 19:1353-1358. [DOI: 10.1002/cbic.201800135] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Indexed: 01/01/2023]
Affiliation(s)
- Karel Hernández
- Department of Chemical Biology and Molecular Modelling; Catalonia Institute for Advanced Chemistry IQAC-CSIC; Jordi Girona 18-26 08034 Barcelona Spain
| | - Anna Szekrenyi
- Institut für Organische Chemie und Biochemie; Technische Universität Darmstadt; Alarich-Weiss-Strasse 4 64287 Darmstadt Germany
| | - Pere Clapés
- Department of Chemical Biology and Molecular Modelling; Catalonia Institute for Advanced Chemistry IQAC-CSIC; Jordi Girona 18-26 08034 Barcelona Spain
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11
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Danahy KE, Cooper JC, Van Humbeck JF. Benzylic Fluorination of Aza-Heterocycles Induced by Single-Electron Transfer to Selectfluor. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201801280] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Kelley E. Danahy
- Department of Chemistry; Massachusetts Institute of Technology; 77 Massachusetts Ave. Cambridge MA 02139 USA
| | - Julian C. Cooper
- Department of Chemistry; Massachusetts Institute of Technology; 77 Massachusetts Ave. Cambridge MA 02139 USA
| | - Jeffrey F. Van Humbeck
- Department of Chemistry; University of Calgary; 2500 University Drive N.W. Calgary Alberta T2N 1N4 Canada
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12
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Danahy KE, Cooper JC, Van Humbeck JF. Benzylic Fluorination of Aza-Heterocycles Induced by Single-Electron Transfer to Selectfluor. Angew Chem Int Ed Engl 2018; 57:5134-5138. [PMID: 29486098 DOI: 10.1002/anie.201801280] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Indexed: 01/20/2023]
Abstract
A selective and mild method for the benzylic fluorination of aromatic azaheterocycles with Selectfluor is described. These reactions take place by a previously unreported mechanism, in which electron transfer from the heterocyclic substrate to the electrophilic fluorinating agent Selectfluor eventually yields a benzylic radical, thus leading to the desired C-F bond formation. This mechanism enables high intra- and intermolecular selectivity for aza-heterocycles over other benzylic components with similar C-H bond-dissociation energies.
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Affiliation(s)
- Kelley E Danahy
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, MA, 02139, USA
| | - Julian C Cooper
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, MA, 02139, USA
| | - Jeffrey F Van Humbeck
- Department of Chemistry, University of Calgary, 2500 University Drive N.W., Calgary, Alberta, T2N 1N4, Canada
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13
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Schmidt NG, Pavkov‐Keller T, Richter N, Wiltschi B, Gruber K, Kroutil W. Biocatalytic Friedel-Crafts Acylation and Fries Reaction. Angew Chem Int Ed Engl 2017; 56:7615-7619. [PMID: 28544673 PMCID: PMC5488191 DOI: 10.1002/anie.201703270] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Revised: 04/26/2016] [Indexed: 11/07/2022]
Abstract
The Friedel-Crafts acylation is commonly used for the synthesis of aryl ketones, and a biocatalytic version, which may benefit from the chemo- and regioselectivity of enzymes, has not yet been introduced. Described here is a bacterial acyltransferase which can catalyze Friedel-Crafts C-acylation of phenolic substrates in buffer without the need of CoA-activated reagents. Conversions reach up to >99 %, and various C- or O-acyl donors, such as DAPG or isopropenyl acetate, are accepted by this enzyme. Furthermore the enzyme enables a Fries rearrangement-like reaction of resorcinol derivatives. These findings open an avenue for the development of alternative and selective C-C bond formation methods.
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Affiliation(s)
- Nina G. Schmidt
- ACIB GmbHPetersgasse 148010GrazAustria
- Institute of ChemistryUniversity of Graz, NAWI Graz, BioTechMed GrazHeinrichstraße 288010GrazAustria
| | - Tea Pavkov‐Keller
- ACIB GmbHPetersgasse 148010GrazAustria
- Institute of Molecular BiosciencesUniversity of GrazHumboldtstraße 50/38010GrazAustria
| | - Nina Richter
- ACIB GmbHPetersgasse 148010GrazAustria
- Institute of ChemistryUniversity of Graz, NAWI Graz, BioTechMed GrazHeinrichstraße 288010GrazAustria
| | | | - Karl Gruber
- ACIB GmbHPetersgasse 148010GrazAustria
- Institute of Molecular BiosciencesUniversity of GrazHumboldtstraße 50/38010GrazAustria
| | - Wolfgang Kroutil
- ACIB GmbHPetersgasse 148010GrazAustria
- Institute of ChemistryUniversity of Graz, NAWI Graz, BioTechMed GrazHeinrichstraße 288010GrazAustria
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14
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Schmidt NG, Pavkov-Keller T, Richter N, Wiltschi B, Gruber K, Kroutil W. Biocatalytic Friedel-Crafts Acylation and Fries Reaction. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201703270] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Nina G. Schmidt
- ACIB GmbH; Petersgasse 14 8010 Graz Austria
- Institute of Chemistry; University of Graz, NAWI Graz, BioTechMed Graz; Heinrichstraße 28 8010 Graz Austria
| | - Tea Pavkov-Keller
- ACIB GmbH; Petersgasse 14 8010 Graz Austria
- Institute of Molecular Biosciences; University of Graz; Humboldtstraße 50/3 8010 Graz Austria
| | - Nina Richter
- ACIB GmbH; Petersgasse 14 8010 Graz Austria
- Institute of Chemistry; University of Graz, NAWI Graz, BioTechMed Graz; Heinrichstraße 28 8010 Graz Austria
| | | | - Karl Gruber
- ACIB GmbH; Petersgasse 14 8010 Graz Austria
- Institute of Molecular Biosciences; University of Graz; Humboldtstraße 50/3 8010 Graz Austria
| | - Wolfgang Kroutil
- ACIB GmbH; Petersgasse 14 8010 Graz Austria
- Institute of Chemistry; University of Graz, NAWI Graz, BioTechMed Graz; Heinrichstraße 28 8010 Graz Austria
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15
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Hernández K, Gómez A, Joglar J, Bujons J, Parella T, Clapés P. 2-Keto-3-Deoxy-l-Rhamnonate Aldolase (YfaU) as Catalyst in Aldol Additions of Pyruvate to Amino Aldehyde Derivatives. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700360] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Karel Hernández
- Catalonia Institute for Advanced Chemistry - IQAC-CSIC; Department of Chemical Biology and Molecular Modelling; Jordi Girona 18-26 08034 Barcelona Spain
| | - Ariadna Gómez
- Catalonia Institute for Advanced Chemistry - IQAC-CSIC; Department of Chemical Biology and Molecular Modelling; Jordi Girona 18-26 08034 Barcelona Spain
| | - Jesús Joglar
- Catalonia Institute for Advanced Chemistry - IQAC-CSIC; Department of Chemical Biology and Molecular Modelling; Jordi Girona 18-26 08034 Barcelona Spain
| | - Jordi Bujons
- Catalonia Institute for Advanced Chemistry - IQAC-CSIC; Department of Chemical Biology and Molecular Modelling; Jordi Girona 18-26 08034 Barcelona Spain
| | - Teodor Parella
- Servei de Ressonància Magnètica Nuclear; Facultat de Ciències; Universitat Autònoma de Barcelona; 08193 Cerdanyola del Vallès Barcelona Spain
| | - Pere Clapés
- Catalonia Institute for Advanced Chemistry - IQAC-CSIC; Department of Chemical Biology and Molecular Modelling; Jordi Girona 18-26 08034 Barcelona Spain
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16
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Cosimi E, Engl OD, Saadi J, Ebert MO, Wennemers H. Stereoselective Organocatalyzed Synthesis of α-Fluorinated β-Amino Thioesters and Their Application in Peptide Synthesis. Angew Chem Int Ed Engl 2016; 55:13127-13131. [DOI: 10.1002/anie.201607146] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2016] [Indexed: 11/10/2022]
Affiliation(s)
- Elena Cosimi
- ETH Zürich; Laboratory for Organic Chemistry; D-CHAB; Vladimir-Prelog-Weg 1-5/10 8093 Zürich Switzerland
| | - Oliver D. Engl
- ETH Zürich; Laboratory for Organic Chemistry; D-CHAB; Vladimir-Prelog-Weg 1-5/10 8093 Zürich Switzerland
| | - Jakub Saadi
- ETH Zürich; Laboratory for Organic Chemistry; D-CHAB; Vladimir-Prelog-Weg 1-5/10 8093 Zürich Switzerland
| | - Marc-Olivier Ebert
- ETH Zürich; Laboratory for Organic Chemistry; D-CHAB; Vladimir-Prelog-Weg 1-5/10 8093 Zürich Switzerland
| | - Helma Wennemers
- ETH Zürich; Laboratory for Organic Chemistry; D-CHAB; Vladimir-Prelog-Weg 1-5/10 8093 Zürich Switzerland
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17
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Cosimi E, Engl OD, Saadi J, Ebert MO, Wennemers H. Stereoselective Organocatalyzed Synthesis of α-Fluorinated β-Amino Thioesters and Their Application in Peptide Synthesis. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201607146] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Elena Cosimi
- ETH Zürich; Laboratory for Organic Chemistry; D-CHAB; Vladimir-Prelog-Weg 1-5/10 8093 Zürich Switzerland
| | - Oliver D. Engl
- ETH Zürich; Laboratory for Organic Chemistry; D-CHAB; Vladimir-Prelog-Weg 1-5/10 8093 Zürich Switzerland
| | - Jakub Saadi
- ETH Zürich; Laboratory for Organic Chemistry; D-CHAB; Vladimir-Prelog-Weg 1-5/10 8093 Zürich Switzerland
| | - Marc-Olivier Ebert
- ETH Zürich; Laboratory for Organic Chemistry; D-CHAB; Vladimir-Prelog-Weg 1-5/10 8093 Zürich Switzerland
| | - Helma Wennemers
- ETH Zürich; Laboratory for Organic Chemistry; D-CHAB; Vladimir-Prelog-Weg 1-5/10 8093 Zürich Switzerland
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