1
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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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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. [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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3
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Mondal S, Aher RD, Bethi V, Lin YJ, Taniguchi T, Monde K, Tanaka F. Control of Reactions of Pyruvates by Catalysts: Direct Enantioselective Mannich Reactions of Pyruvates Catalyzed by Amine-based Catalyst Systems. Org Lett 2022; 24:1853-1858. [DOI: 10.1021/acs.orglett.2c00436] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Santanu Mondal
- Chemistry and Chemical Bioengineering Unit, Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna, Okinawa 904-0495, Japan
| | - Ravindra D. Aher
- Chemistry and Chemical Bioengineering Unit, Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna, Okinawa 904-0495, Japan
| | - Venkati Bethi
- Chemistry and Chemical Bioengineering Unit, Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna, Okinawa 904-0495, Japan
| | - Yu-Ju Lin
- Chemistry and Chemical Bioengineering Unit, Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna, Okinawa 904-0495, Japan
| | - Tohru Taniguchi
- Faculty of Advanced Life Science, Hokkaido University, Kita 21 Nishi 11, Sapporo 001-0021, Japan
| | - Kenji Monde
- Faculty of Advanced Life Science, Hokkaido University, Kita 21 Nishi 11, Sapporo 001-0021, Japan
| | - Fujie Tanaka
- Chemistry and Chemical Bioengineering Unit, Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna, Okinawa 904-0495, Japan
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4
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Pickl M. Recent trends in the stereoselective synthesis of (poly)-substituted 2-oxo acids by biocatalyzed aldol reaction. CURRENT OPINION IN GREEN AND SUSTAINABLE CHEMISTRY 2021; 30:100476. [PMID: 34141957 PMCID: PMC7610986 DOI: 10.1016/j.cogsc.2021.100476] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Recently, an increased interest toward enzymatic carboligation was observed, as biocatalytic carbon-carbon bond formation is a common obstacle in retrosynthetic planning. The construction of extended 2-oxoacid frameworks by 2-oxoacid aldolases and enzymes acting as aldolases is a potent tool for synthetic chemists since a broad spectrum of downstream reactions through functional group interconversions gives access to a plethora of compound classes. In the search for selective biocatalysts, successful protein engineering efforts and high throughput screenings from biodiversity expand the structural diversity of nucleophile and electrophile substrates. Several successful examples with an emphasis on reactions catalyzed by class II aldolases and enzymes acting as class II aldolases are highlighted, including reactions in which both enantiomeric products and in selected cases even diastereomeric products are accessed.
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Affiliation(s)
- Mathias Pickl
- Institute of Chemistry, University of Graz, Heinrichstrasse 28, 8010, Graz, Austria
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5
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Pickl M, Marín-Valls R, Joglar J, Bujons J, Clapés P. Chemoenzymatic Production of Enantiocomplementary 2-Substituted 3-Hydroxycarboxylic Acids from L-α-Amino Acids. Adv Synth Catal 2021; 363:2866-2876. [PMID: 34276272 PMCID: PMC7611260 DOI: 10.1002/adsc.202100145] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Indexed: 12/14/2022]
Abstract
A two-enzyme cascade reaction plus in situ oxidative decarboxylation for the transformation of readily available canonical and non-canonical L-α-amino acids into 2-substituted 3-hydroxy-carboxylic acid derivatives is described. The biocatalytic cascade consisted of an oxidative deamination of L-α-amino acids by an L-α-amino acid deaminase from Cosenzaea myxofaciens, rendering 2-oxoacid intermediates, with an ensuing aldol addition reaction to formaldehyde, catalyzed by metal-dependent (R)- or (S)-selective carboligases namely 2-oxo-3-deoxy-l-rhamnonate aldolase (YfaU) and ketopantoate hydroxymethyltransferase (KPHMT), respectively, furnishing 3-substituted 4-hydroxy-2-oxoacids. The overall substrate conversion was optimized by balancing biocatalyst loading and amino acid and formaldehyde concentrations, yielding 36-98% aldol adduct formation and 91- 98% ee for each enantiomer. Subsequent in situ follow-up chemistry via hydrogen peroxide-driven oxidative decarboxylation afforded the corresponding 2-substituted 3-hydroxycarboxylic acid derivatives.
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Affiliation(s)
- Mathias Pickl
- Department of Chemical Biology. Institute for Advanced Chemistry of Catalonia (IQAC-CSIC), Jordi Girona 18–26, 08034 Barcelona, Spain
- Department of Chemistry, University of Graz, Heinrichstrasse 28, 8010 Graz, Austria
| | - Roser Marín-Valls
- Department of Chemical Biology. Institute for Advanced Chemistry of Catalonia (IQAC-CSIC), Jordi Girona 18–26, 08034 Barcelona, Spain
| | - Jesús Joglar
- Department of Chemical Biology. Institute for Advanced Chemistry of Catalonia (IQAC-CSIC), Jordi Girona 18–26, 08034 Barcelona, Spain
| | - Jordi Bujons
- Department of Chemical Biology. Institute for Advanced Chemistry of Catalonia (IQAC-CSIC), Jordi Girona 18–26, 08034 Barcelona, Spain
| | - Pere Clapés
- Department of Chemical Biology. Institute for Advanced Chemistry of Catalonia (IQAC-CSIC), Jordi Girona 18–26, 08034 Barcelona, Spain
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6
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Bosch S, Sanchez-Freire E, del Pozo ML, C̆esnik M, Quesada J, Mate DM, Hernández K, Qi Y, Clapés P, Vasić-Rački Đ, Findrik Blažević Z, Berenguer J, Hidalgo A. Thermostability Engineering of a Class II Pyruvate Aldolase from Escherichia coli by in Vivo Folding Interference. ACS SUSTAINABLE CHEMISTRY & ENGINEERING 2021; 9:5430-5436. [PMID: 34589311 PMCID: PMC8461973 DOI: 10.1021/acssuschemeng.1c00699] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 03/21/2021] [Indexed: 06/13/2023]
Abstract
The use of enzymes in industrial processes is often limited by the unavailability of biocatalysts with prolonged stability. Thermostable enzymes allow increased process temperature and thus higher substrate and product solubility, reuse of expensive biocatalysts, resistance against organic solvents, and better "evolvability" of enzymes. In this work, we have used an activity-independent method for the selection of thermostable variants of any protein in Thermus thermophilus through folding interference at high temperature of a thermostable antibiotic reporter protein at the C-terminus of a fusion protein. To generate a monomeric folding reporter, we have increased the thermostability of the moderately thermostable Hph5 variant of the hygromycin B phosphotransferase from Escherichia coli to meet the method requirements. The final Hph17 variant showed 1.5 °C higher melting temperature (T m) and 3-fold longer half-life at 65 °C compared to parental Hph5, with no changes in the steady-state kinetic parameters. Additionally, we demonstrate the validity of the reporter by stabilizing the 2-keto-3-deoxy-l-rhamnonate aldolase from E. coli (YfaU). The most thermostable multiple-mutated variants thus obtained, YfaU99 and YfaU103, showed increases of 2 and 2.9 °C in T m compared to the wild-type enzyme but severely lower retro-aldol activities (150- and 120-fold, respectively). After segregation of the mutations, the most thermostable single variant, Q107R, showed a T m 8.9 °C higher, a 16-fold improvement in half-life at 60 °C and higher operational stability than the wild-type, without substantial modification of the kinetic parameters.
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Affiliation(s)
- Sandra Bosch
- Department
of Molecular Biology, Center of Molecular Biology “Severo Ochoa”
(UAM-CSIC), Autonomous University of Madrid, Nicolás Cabrera 1, 28049 Madrid, Spain
| | - Esther Sanchez-Freire
- Department
of Molecular Biology, Center of Molecular Biology “Severo Ochoa”
(UAM-CSIC), Autonomous University of Madrid, Nicolás Cabrera 1, 28049 Madrid, Spain
| | - María Luisa del Pozo
- Department
of Molecular Biology, Center of Molecular Biology “Severo Ochoa”
(UAM-CSIC), Autonomous University of Madrid, Nicolás Cabrera 1, 28049 Madrid, Spain
| | - Morana C̆esnik
- University
of Zagreb, Faculty of Chemical
Engineering and Technology, Savska c. 16, HR-10000 Zagreb, Croatia
| | - Jaime Quesada
- Department
of Molecular Biology, Center of Molecular Biology “Severo Ochoa”
(UAM-CSIC), Autonomous University of Madrid, Nicolás Cabrera 1, 28049 Madrid, Spain
| | - Diana M. Mate
- Department
of Molecular Biology, Center of Molecular Biology “Severo Ochoa”
(UAM-CSIC), Autonomous University of Madrid, Nicolás Cabrera 1, 28049 Madrid, Spain
| | - Karel Hernández
- Institute
of Advanced Chemistry of Catalonia, Biotransformation and Bioactive
Molecules Group, Spanish National Research Council (IQAC−CSIC), Jordi Girona 18-26, 08034 Barcelona, Spain
| | - Yuyin Qi
- Prozomix
Ltd., Station Court, Haltwhistle, NE49 9HN Northumberland, United Kingdom
| | - Pere Clapés
- Institute
of Advanced Chemistry of Catalonia, Biotransformation and Bioactive
Molecules Group, Spanish National Research Council (IQAC−CSIC), Jordi Girona 18-26, 08034 Barcelona, Spain
| | - Đurđa Vasić-Rački
- University
of Zagreb, Faculty of Chemical
Engineering and Technology, Savska c. 16, HR-10000 Zagreb, Croatia
| | - Zvjezdana Findrik Blažević
- University
of Zagreb, Faculty of Chemical
Engineering and Technology, Savska c. 16, HR-10000 Zagreb, Croatia
| | - José Berenguer
- Department
of Molecular Biology, Center of Molecular Biology “Severo Ochoa”
(UAM-CSIC), Autonomous University of Madrid, Nicolás Cabrera 1, 28049 Madrid, Spain
| | - Aurelio Hidalgo
- Department
of Molecular Biology, Center of Molecular Biology “Severo Ochoa”
(UAM-CSIC), Autonomous University of Madrid, Nicolás Cabrera 1, 28049 Madrid, Spain
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7
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Slagman S, Fessner WD. Biocatalytic routes to anti-viral agents and their synthetic intermediates. Chem Soc Rev 2021; 50:1968-2009. [DOI: 10.1039/d0cs00763c] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
An assessment of biocatalytic strategies for the synthesis of anti-viral agents, offering guidelines for the development of sustainable production methods for a future COVID-19 remedy.
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Affiliation(s)
- Sjoerd Slagman
- Institut für Organische Chemie und Biochemie
- Technische Universität Darmstadt
- Germany
| | - Wolf-Dieter Fessner
- Institut für Organische Chemie und Biochemie
- Technische Universität Darmstadt
- Germany
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8
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Česnik M, Sudar M, Hernández K, Charnock S, Vasić-Rački Đ, Clapés P, Findrik Blažević Z. Cascade enzymatic synthesis of l-homoserine – mathematical modelling as a tool for process optimisation and design. REACT CHEM ENG 2020. [DOI: 10.1039/c9re00453j] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Mathematical modelling enabled cascade reaction optimisation; 100% increase in product concentration and 18% increase in volume productivity compared to previous work.
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Affiliation(s)
- M. Česnik
- University of Zagreb
- Faculty of Chemical Engineering and Technology
- HR-10000 Zagreb
- Croatia
| | - M. Sudar
- University of Zagreb
- Faculty of Chemical Engineering and Technology
- HR-10000 Zagreb
- Croatia
| | - K. Hernández
- Institute of Advanced Chemistry of Catalonia
- Biological Chemistry Department
- Biotransformation and Bioactive Molecules Group
- 08034 Barcelona
- Spain
| | | | - Đ. Vasić-Rački
- University of Zagreb
- Faculty of Chemical Engineering and Technology
- HR-10000 Zagreb
- Croatia
| | - P. Clapés
- Institute of Advanced Chemistry of Catalonia
- Biological Chemistry Department
- Biotransformation and Bioactive Molecules Group
- 08034 Barcelona
- Spain
| | - Z. Findrik Blažević
- University of Zagreb
- Faculty of Chemical Engineering and Technology
- HR-10000 Zagreb
- Croatia
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9
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Luo Q, Lu T, Xu J, Yang X, Zhou L. Conversion of Dihydroxyacetone to Methyl Pyruvate Catalyzed by Hybrid Molecular Sieves at Low Temperature: A Strategy for the Green Utilization of Glycerol. Catal Letters 2019. [DOI: 10.1007/s10562-019-03064-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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10
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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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11
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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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12
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Marín-Valls R, Hernández K, Bolte M, Joglar J, Bujons J, Clapés P. Chemoenzymatic Hydroxymethylation of Carboxylic Acids by Tandem Stereodivergent Biocatalytic Aldol Reaction and Chemical Decarboxylation. ACS Catal 2019. [DOI: 10.1021/acscatal.9b01646] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Roser Marín-Valls
- Instituto de Química Avanzada de Cataluña IQAC−CSIC, Jordi Girona 18-26, 08034 Barcelona, Spain
| | - Karel Hernández
- Instituto de Química Avanzada de Cataluña IQAC−CSIC, Jordi Girona 18-26, 08034 Barcelona, Spain
| | - Michael Bolte
- Institut für Anorganische Chemie, J.-W.-Goethe-Universität, D-60438 Frankfurt/Main, Germany
| | - Jesús Joglar
- Instituto de Química Avanzada de Cataluña IQAC−CSIC, Jordi Girona 18-26, 08034 Barcelona, Spain
| | - Jordi Bujons
- Instituto de Química Avanzada de Cataluña IQAC−CSIC, Jordi Girona 18-26, 08034 Barcelona, Spain
| | - Pere Clapés
- Instituto de Química Avanzada de Cataluña IQAC−CSIC, Jordi Girona 18-26, 08034 Barcelona, Spain
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13
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Nigro MJ, Palazzolo MA, Colasurdo D, Iribarren AM, Lewkowicz ES. N-Acetylneuraminic acid aldolase-catalyzed synthesis of acyclic nucleoside analogues carrying a 4-hydroxy-2-oxoacid moiety. CATAL COMMUN 2019. [DOI: 10.1016/j.catcom.2018.12.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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14
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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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15
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Hernández K, Joglar J, Bujons J, Parella T, Clapés P. Nucleophile Promiscuity of Engineered Class II Pyruvate Aldolase YfaU from E. Coli. Angew Chem Int Ed Engl 2018; 57:3583-3587. [PMID: 29363239 DOI: 10.1002/anie.201711289] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Revised: 01/09/2018] [Indexed: 11/08/2022]
Abstract
Pyruvate-dependent aldolases exhibit a stringent selectivity for pyruvate, limiting application of their synthetic potential, which is a drawback shared with other existing aldolases. Structure-guided rational protein engineering rendered a 2-keto-3-deoxy-l-rhamnonate aldolase variant, fused with a maltose-binding protein (MBP-YfaU W23V/L216A), capable of efficiently converting larger pyruvate analogues, for example, those with linear and branched aliphatic chains, in aldol addition reactions. Combination of these nucleophiles with N-Cbz-alaninal (Cbz=benzyloxycarbonyl) and N-Cbz-prolinal electrophiles gave access to chiral building blocks, for example, derivatives of (2S,3S,4R)-4-amino-3-hydroxy-2-methylpentanoic acid (68 %, d.r. 90:10) and the enantiomer of dolaproine (33 %, d.r. 94:6) as well as a collection of unprecedented α-amino acid derivatives of the proline and pyrrolizidine type. Conversions varied between 6-93 % and diastereomeric ratios from 50:50 to 95:5 depending on the nucleophilic and electrophilic components.
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Affiliation(s)
- Karel Hernández
- Chemical Biology and Molecular Modelling, Institute for Advanced Chemistry of Catalonia (IQAC-CSIC), Jordi Girona 18-26, 08034, Barcelona, Spain
| | - Jesús Joglar
- Chemical Biology and Molecular Modelling, Institute for Advanced Chemistry of Catalonia (IQAC-CSIC), Jordi Girona 18-26, 08034, Barcelona, Spain
| | - Jordi Bujons
- Chemical Biology and Molecular Modelling, Institute for Advanced Chemistry of Catalonia (IQAC-CSIC), Jordi Girona 18-26, 08034, Barcelona, Spain
| | - Teodor Parella
- Servei de Ressonància Magnètica Nuclear, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Pere Clapés
- Chemical Biology and Molecular Modelling, Institute for Advanced Chemistry of Catalonia (IQAC-CSIC), Jordi Girona 18-26, 08034, Barcelona, Spain
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16
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Hernández K, Joglar J, Bujons J, Parella T, Clapés P. Nucleophile Promiscuity of Engineered Class II Pyruvate Aldolase YfaU from E. Coli. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201711289] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Karel Hernández
- Chemical Biology and Molecular Modelling; Institute for Advanced Chemistry of Catalonia (IQAC-CSIC); Jordi Girona 18-26 08034 Barcelona Spain
| | - Jesús Joglar
- Chemical Biology and Molecular Modelling; Institute for Advanced Chemistry of Catalonia (IQAC-CSIC); Jordi Girona 18-26 08034 Barcelona Spain
| | - Jordi Bujons
- Chemical Biology and Molecular Modelling; Institute for Advanced Chemistry of Catalonia (IQAC-CSIC); Jordi Girona 18-26 08034 Barcelona Spain
| | - Teodor Parella
- Servei de Ressonància Magnètica Nuclear; Universitat Autònoma de Barcelona; Bellaterra Spain
| | - Pere Clapés
- Chemical Biology and Molecular Modelling; Institute for Advanced Chemistry of Catalonia (IQAC-CSIC); Jordi Girona 18-26 08034 Barcelona Spain
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17
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Baś S, Kusy R, Pasternak-Suder M, Nicolas C, Mlynarski J, Martin OR. Total synthesis of pipecolic acid and 1-C-alkyl 1,5-iminopentitol derivatives by way of stereoselective aldol reactions from (S)-isoserinal. Org Biomol Chem 2018; 16:1118-1125. [PMID: 29362764 DOI: 10.1039/c7ob02797d] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A short synthesis of iminosugars and pipecolic acid derivatives has been realized through aldol addition of a pyruvate, a range of ketones and (S)-isoserinal, followed by catalytic reductive intramolecular amination. The stereoselective aldol reaction was achieved successfully by using tertiary amines or di-zinc aldol catalysts, thus constituting two parallel routes to optically pure products with good yields and high diastereoselectivities. These carbohydrate analogues may be the inhibitors of potent glycosidases and glycosyltransferases.
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Affiliation(s)
- Sebastian Baś
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland.
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18
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Lu T, Zou J, Zhan Y, Yang X, Wen Y, Wang X, Zhou L, Xu J. Highly Efficient Oxidation of Ethyl Lactate to Ethyl Pyruvate Catalyzed by TS-1 Under Mild Conditions. ACS Catal 2018. [DOI: 10.1021/acscatal.7b03558] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Tianliang Lu
- School
of Chemical Engineering and Energy, Zhengzhou University, 100 Kexue
Road, Zhengzhou 450001, People’s Republic of China
- College
of Chemistry and Molecular Engineering, Zhengzhou University, 100 Kexue Road, Zhengzhou 450001, People’s Republic of China
| | - Junpeng Zou
- School
of Chemical Engineering and Energy, Zhengzhou University, 100 Kexue
Road, Zhengzhou 450001, People’s Republic of China
| | - Yuzhong Zhan
- School
of Chemical Engineering and Energy, Zhengzhou University, 100 Kexue
Road, Zhengzhou 450001, People’s Republic of China
| | - Xiaomei Yang
- College
of Chemistry and Molecular Engineering, Zhengzhou University, 100 Kexue Road, Zhengzhou 450001, People’s Republic of China
| | - Yiqiang Wen
- College
of Chemistry and Molecular Engineering, Zhengzhou University, 100 Kexue Road, Zhengzhou 450001, People’s Republic of China
| | - Xiangyu Wang
- College
of Chemistry and Molecular Engineering, Zhengzhou University, 100 Kexue Road, Zhengzhou 450001, People’s Republic of China
| | - Lipeng Zhou
- College
of Chemistry and Molecular Engineering, Zhengzhou University, 100 Kexue Road, Zhengzhou 450001, People’s Republic of China
| | - Jie Xu
- State
Key Laboratory of Catalysis, Dalian National Laboratory for Clean
Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, People’s Republic of China
| |
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