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Carceller JM, Arias KS, Climent MJ, Iborra S, Corma A. One-pot chemo- and photo-enzymatic linear cascade processes. Chem Soc Rev 2024; 53:7875-7938. [PMID: 38965865 DOI: 10.1039/d3cs00595j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/06/2024]
Abstract
The combination of chemo- and photocatalyses with biocatalysis, which couples the flexible reactivity of the photo- and chemocatalysts with the highly selective and environmentally friendly nature of enzymes in one-pot linear cascades, represents a powerful tool in organic synthesis. However, the combination of photo-, chemo- and biocatalysts in one-pot is challenging because the optimal operating conditions of the involved catalyst types may be rather different, and the different stabilities of catalysts and their mutual deactivation are additional problems often encountered in one-pot cascade processes. This review explores a large number of transformations and approaches adopted for combining enzymes and chemo- and photocatalytic processes in a successful way to achieve valuable chemicals and valorisation of biomass. Moreover, the strategies for solving incompatibility issues in chemo-enzymatic reactions are analysed, introducing recent examples of the application of non-conventional solvents, enzyme-metal hybrid catalysts, and spatial compartmentalization strategies to implement chemo-enzymatic cascade processes.
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Affiliation(s)
- J M Carceller
- Instituto de Tecnología Química (Universitat Politècnica de València-Agencia Estatal Consejo Superior de Investigaciones Científicas), Avda dels Tarongers s/n, 46022, Valencia, Spain.
| | - K S Arias
- Instituto de Tecnología Química (Universitat Politècnica de València-Agencia Estatal Consejo Superior de Investigaciones Científicas), Avda dels Tarongers s/n, 46022, Valencia, Spain.
| | - M J Climent
- Instituto de Tecnología Química (Universitat Politècnica de València-Agencia Estatal Consejo Superior de Investigaciones Científicas), Avda dels Tarongers s/n, 46022, Valencia, Spain.
| | - S Iborra
- Instituto de Tecnología Química (Universitat Politècnica de València-Agencia Estatal Consejo Superior de Investigaciones Científicas), Avda dels Tarongers s/n, 46022, Valencia, Spain.
| | - A Corma
- Instituto de Tecnología Química (Universitat Politècnica de València-Agencia Estatal Consejo Superior de Investigaciones Científicas), Avda dels Tarongers s/n, 46022, Valencia, Spain.
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2
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Salitra N, Gurauskis J, Gröger H. Design of 3D-Printed Heterogeneous Reactor Systems To Overcome Incompatibility Hurdles when Combining Metal and Enzyme Catalysis in a One-Pot Process. Angew Chem Int Ed Engl 2024; 63:e202316760. [PMID: 38217774 DOI: 10.1002/anie.202316760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2023] [Revised: 12/28/2023] [Accepted: 01/08/2024] [Indexed: 01/15/2024]
Abstract
Combining chemo- and biocatalysis enables the design of novel economic and sustainable one-pot processes for the preparation of industrial chemicals, preferably proceeding in water. While a range of proofs-of-concept for the compatibility of such catalysts from these two different "worlds of catalysis" have recently been demonstrated, merging noncompatible chemo- and biocatalysts for joint applications within one reactor remained a challenge. A conceptual solution is compartmentalization of the catalytic moieties by heterogenization of critical catalyst components, thus "shielding" them from the complementary noncompatible catalyst, substrate or reagent. Exemplified for a one-pot process consisting of a metal-catalyzed Wacker oxidation and enzymatic reduction as noncompatible individual reactions steps, we demonstrate that making use of 3D printing of heterogeneous materials containing Cu as a critical metal component can overcome such incompatibility hurdles. The application of a 3D-printed Cu-ceramic device as metal catalyst component allows an efficient combination with the enzyme and the desired two-step transformation of styrene into the chiral alcohol product with high overall conversion and excellent enantioselectivity. This compartmentalization concept based on 3D printing of heterogenized metal catalysts represents a scalable methodology and opens up numerous perspectives to be used as a general tool also for other related chemoenzymatic research challenges.
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Affiliation(s)
- Nadiya Salitra
- Chair of Industrial Organic Chemistry and Biotechnology, Faculty of Chemistry, Bielefeld University, Universitätsstr. 25, 33615, Bielefeld, Germany
- AENEAM Advanced Membrane Technologies SL, Calle Café Florian 14, 50021, Zaragoza, Spain
| | - Jonas Gurauskis
- AENEAM Advanced Membrane Technologies SL, Calle Café Florian 14, 50021, Zaragoza, Spain
- INMA, Instituto de Nanociencia y Materiales de Aragón (CSIC-Unizar), Calle Mariano Esquillor 15, Edificio CIRCE, 50018, Zaragoza, Spain
- ARAID, Fundacion Agencia Aragonesa para la Investigacion y Desarollo, Av. de Ranillas 1D, planta 2ª, oficina B, 50018, Zaragoza, Spain
| | - Harald Gröger
- Chair of Industrial Organic Chemistry and Biotechnology, Faculty of Chemistry, Bielefeld University, Universitätsstr. 25, 33615, Bielefeld, Germany
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3
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Wilson RH, Chatterjee S, Smithwick ER, Damodaran AR, Bhagi-Damodaran A. Controllable multi-halogenation of a non-native substrate by SyrB2 iron halogenase. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.05.08.593161. [PMID: 38766225 PMCID: PMC11100670 DOI: 10.1101/2024.05.08.593161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2024]
Abstract
Geminal, multi-halogenated functional groups are widespread in natural products and pharmaceuticals, yet no synthetic methodologies exist that enable selective multi-halogenation of unactivated C-H bonds. Biocatalysts are powerful tools for late-stage C-H functionalization, as they operate with high degrees of regio-, chemo-, and stereoselectivity. 2-oxoglutarate (2OG)-dependent non-heme iron halogenases chlorinate and brominate aliphatic C-H bonds offering a solution for achieving these challenging transformations. Here, we describe the ability of a non-heme iron halogenase, SyrB2, to controllably halogenate non-native substrate alpha-aminobutyric acid (Aba) to yield mono-chlorinated, di-chlorinated, and tri-chlorinated products. These chemoselective outcomes are achieved by controlling the loading of 2OG cofactor and SyrB2 biocatalyst. By using a ferredoxin-based biological reductant for electron transfer to the catalytic center of SyrB2, we demonstrate order-of-magnitude enhancement in the yield of tri-chlorinated product that were previously inaccessible using any single halogenase enzyme. We also apply these strategies to broaden SyrB2's reactivity scope to include multi-bromination and demonstrate chemoenzymatic conversion of the ethyl side chain in Aba to an ethylyne functional group. We show how steric hindrance induced by the successive addition of halogen atoms on Aba's C4 carbon dictates the degree of multi-halogenation by hampering C3-C4 bond rotation within SyrB2's catalytic pocket. Overall, our work showcases the synthetic potential of iron halogenases to facilitate multi-C-H functionalization chemistry.
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Affiliation(s)
- R Hunter Wilson
- Department of Chemistry, University of Minnesota, Twin Cities, Minneapolis, MN, 55455, United States
| | - Sourav Chatterjee
- Department of Chemistry, University of Minnesota, Twin Cities, Minneapolis, MN, 55455, United States
| | - Elizabeth R Smithwick
- Department of Chemistry, University of Minnesota, Twin Cities, Minneapolis, MN, 55455, United States
| | - Anoop R Damodaran
- Department of Chemistry, University of Minnesota, Twin Cities, Minneapolis, MN, 55455, United States
| | - Ambika Bhagi-Damodaran
- Department of Chemistry, University of Minnesota, Twin Cities, Minneapolis, MN, 55455, United States
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4
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Montua N, Thye P, Hartwig P, Kühle M, Sewald N. Enzymatic Peptide and Protein Bromination: The BromoTrp Tag. Angew Chem Int Ed Engl 2024; 63:e202314961. [PMID: 38009455 DOI: 10.1002/anie.202314961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 11/21/2023] [Accepted: 11/24/2023] [Indexed: 11/28/2023]
Abstract
Bio-orthogonal reactions for modification of proteins and unprotected peptides are of high value in chemical biology. The combination of enzymatic halogenation with transition metal-catalyzed cross-coupling provides a feasible approach for the modification of proteins and unprotected peptides. By a semirational protein engineering approach, variants of the tryptophan 6-halogenase Thal were identified that enable efficient bromination of peptides with a C-terminal tryptophan residue. The substrate scope was explored using di-, tri-, and tetrapeptide arrays, leading to the identification of an optimized peptide tag we named BromoTrp tag. This tag was introduced into three model proteins. Preparative scale post-translational bromination was possible with only a single cultivation and purification step using the brominating E. coli coexpression system Brocoli. Palladium-catalyzed Suzuki-Miyaura cross-coupling of the bromoarene was achieved with Pd nanoparticle catalysts at 37 °C, highlighting the rich potential of this strategy for bio-orthogonal functionalization and conjugation.
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Affiliation(s)
- Nicolai Montua
- Organic and Bioorganic Chemistry, Department of Chemistry, Bielefeld University, Universitätsstraße 25, 33615, Bielefeld, Germany
| | - Paula Thye
- Organic and Bioorganic Chemistry, Department of Chemistry, Bielefeld University, Universitätsstraße 25, 33615, Bielefeld, Germany
| | - Pia Hartwig
- Organic and Bioorganic Chemistry, Department of Chemistry, Bielefeld University, Universitätsstraße 25, 33615, Bielefeld, Germany
| | - Matthias Kühle
- Organic and Bioorganic Chemistry, Department of Chemistry, Bielefeld University, Universitätsstraße 25, 33615, Bielefeld, Germany
| | - Norbert Sewald
- Organic and Bioorganic Chemistry, Department of Chemistry, Bielefeld University, Universitätsstraße 25, 33615, Bielefeld, Germany
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5
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Peh G, Tay T, Tan LL, Tiong E, Bi J, Goh YL, Ye S, Lin F, Tan CJX, Tan YZ, Wong J, Zhao H, Wong FT, Ang EL, Lim YH. Site-selective chlorination of pyrrolic heterocycles by flavin dependent enzyme PrnC. Commun Chem 2024; 7:7. [PMID: 38182798 PMCID: PMC10770391 DOI: 10.1038/s42004-023-01083-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Accepted: 12/06/2023] [Indexed: 01/07/2024] Open
Abstract
Halogenation of pyrrole requires strong electrophilic reagents and often leads to undesired polyhalogenated products. Biocatalytic halogenation is a highly attractive approach given its chemoselectivity and benign reaction conditions. While there are several reports of enzymatic phenol and indole halogenation in organic synthesis, corresponding reports on enzymatic pyrrole halogenation have been lacking. Here we describe the in vitro functional and structural characterization of PrnC, a flavin-dependent halogenase that can act on free-standing pyrroles. Computational modeling and site mutagenesis studies identified three key residues in the catalytic pocket. A moderate resolution map using single-particle cryogenic electron microscopy reveals PrnC to be a dimer. This native PrnC can halogenate a library of structurally diverse pyrrolic heterocycles in a site-selective manner and be applied in the chemoenzymatic synthesis of a chlorinated analog of the agrochemical fungicide Fludioxonil.
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Affiliation(s)
- GuangRong Peh
- Institute of Sustainability for Chemicals, Energy and Environment (ISCE2), Agency for Science, Technology and Research (A*STAR), Singapore, Republic of Singapore
| | - Terence Tay
- Singapore Institute of Food and Biotechnology Innovation (SIFBI), Agency for Science, Technology and Research (A*STAR), Singapore, Republic of Singapore
| | - Lee Ling Tan
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), Singapore, Republic of Singapore
| | - Elaine Tiong
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), Singapore, Republic of Singapore
| | - Jiawu Bi
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), Singapore, Republic of Singapore
| | - Yi Ling Goh
- Institute of Sustainability for Chemicals, Energy and Environment (ISCE2), Agency for Science, Technology and Research (A*STAR), Singapore, Republic of Singapore
| | - Suming Ye
- Institute of Sustainability for Chemicals, Energy and Environment (ISCE2), Agency for Science, Technology and Research (A*STAR), Singapore, Republic of Singapore
| | - Fu Lin
- Singapore Institute of Food and Biotechnology Innovation (SIFBI), Agency for Science, Technology and Research (A*STAR), Singapore, Republic of Singapore
| | - Cheryl Jia Xin Tan
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
| | - Yong Zi Tan
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), Singapore, Republic of Singapore
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
- Disease Intervention Technology Laboratory (DITL), Agency for Science, Technology and Research (A*STAR), Singapore, Republic of Singapore
| | - Joel Wong
- Institute of Sustainability for Chemicals, Energy and Environment (ISCE2), Agency for Science, Technology and Research (A*STAR), Singapore, Republic of Singapore
| | - Huimin Zhao
- Singapore Institute of Food and Biotechnology Innovation (SIFBI), Agency for Science, Technology and Research (A*STAR), Singapore, Republic of Singapore
- Department of Chemical and Biomolecular Engineering, Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Fong Tian Wong
- Institute of Sustainability for Chemicals, Energy and Environment (ISCE2), Agency for Science, Technology and Research (A*STAR), Singapore, Republic of Singapore.
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), Singapore, Republic of Singapore.
| | - Ee Lui Ang
- Singapore Institute of Food and Biotechnology Innovation (SIFBI), Agency for Science, Technology and Research (A*STAR), Singapore, Republic of Singapore.
- Synthetic Biology Translational Research Program, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Republic of Singapore.
| | - Yee Hwee Lim
- Institute of Sustainability for Chemicals, Energy and Environment (ISCE2), Agency for Science, Technology and Research (A*STAR), Singapore, Republic of Singapore.
- Synthetic Biology Translational Research Program, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Republic of Singapore.
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6
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Montua N, Sewald N. Extended Biocatalytic Halogenation Cascades Involving a Single-Polypeptide Regeneration System for Diffusible FADH 2. Chembiochem 2023; 24:e202300478. [PMID: 37549375 DOI: 10.1002/cbic.202300478] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 08/07/2023] [Accepted: 08/07/2023] [Indexed: 08/09/2023]
Abstract
Flavin-dependent halogenases have attracted increasing interest for aryl halogenation at unactivated C-H positions because they are characterised by high regioselectivity, while requiring only FADH2 , halide salts, and O2 . Their use in combined crosslinked enzyme aggregates (combiCLEAs) together with an NADH-dependent flavin reductase and an NADH-regeneration system for the preparative halogenation of tryptophan and indole derivatives has been previously described. However, multiple cultivations and protein purification steps are necessary for their production. We present a bifunctional regeneration enzyme for two-step catalytic flavin regeneration using phosphite as an inexpensive sacrificial substrate. This fusion protein proved amenable to co-expression with various flavin-dependent Trp-halogenases and enables carrier-free immobilisation as combiCLEAs from a single cultivation for protein production and the preparative synthesis of halotryptophan. The scalability of this system was demonstrated by fed-batch fermentation in bench-top bioreactors on a 2.5 L scale. Furthermore, the inclusion of a 6-halotryptophan-specific dioxygenase into the co-expression strain further converts the halogenation product to the kynurenine derivative. This reaction cascade enables the one-pot synthesis of l-4-Cl-kynurenine and its brominated analogue on a preparative scale.
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Affiliation(s)
- Nicolai Montua
- Organic and Bioorganic Chemistry, Department of Chemistry, Bielefeld University, Universitätsstraße 25, 33615, Bielefeld, Germany
| | - Norbert Sewald
- Organic and Bioorganic Chemistry, Department of Chemistry, Bielefeld University, Universitätsstraße 25, 33615, Bielefeld, Germany
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7
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Abstract
The ability to site-selectively modify equivalent functional groups in a molecule has the potential to streamline syntheses and increase product yields by lowering step counts. Enzymes catalyze site-selective transformations throughout primary and secondary metabolism, but leveraging this capability for non-native substrates and reactions requires a detailed understanding of the potential and limitations of enzyme catalysis and how these bounds can be extended by protein engineering. In this review, we discuss representative examples of site-selective enzyme catalysis involving functional group manipulation and C-H bond functionalization. We include illustrative examples of native catalysis, but our focus is on cases involving non-native substrates and reactions often using engineered enzymes. We then discuss the use of these enzymes for chemoenzymatic transformations and target-oriented synthesis and conclude with a survey of tools and techniques that could expand the scope of non-native site-selective enzyme catalysis.
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Affiliation(s)
- Dibyendu Mondal
- Department of Chemistry, Indiana University, Bloomington, Indiana 47405, United States
| | - Harrison M Snodgrass
- Department of Chemistry, Indiana University, Bloomington, Indiana 47405, United States
| | - Christian A Gomez
- Department of Chemistry, Indiana University, Bloomington, Indiana 47405, United States
| | - Jared C Lewis
- Department of Chemistry, Indiana University, Bloomington, Indiana 47405, United States
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8
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Zhang Q, Zhou P, Zhao Y, Liu Y, Liang T, Jiang J, Zhang Z. Catalyst-controlled regiodivergent C-H bond alkenylation of 2-pyridylthiophenes. Chem Commun (Camb) 2023. [PMID: 37366584 DOI: 10.1039/d3cc02411c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/28/2023]
Abstract
A novel and effective RhIII- and PdII-controlled switchable C-H alkenylation of 2-pyridylthiophenes with alkenes is realized. The alkenylation reactions proceeded smoothly in a highly regio- and stereo-selective manner to afford a broad range of C3- and C5-alkenylated products. Depending on the catalyst employed, the reactions involve two typical approaches: C3-alkenylation via chelation-assisted rhodation and C5-alkenylation via electrophilic palladation. This regiodivergent synthetic protocol was successfully applied for the straightforward building of π-conjugated difunctionalized 2-pyridylthiophenes, which may show great potential in organic electronic materials.
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Affiliation(s)
- Qiang Zhang
- Guangxi Key Laboratory of Electrochemical Energy Materials, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development, School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, P. R. China.
| | - Pengfei Zhou
- Guangxi Key Laboratory of Electrochemical Energy Materials, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development, School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, P. R. China.
| | - Yaokun Zhao
- Guangxi Key Laboratory of Electrochemical Energy Materials, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development, School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, P. R. China.
| | - Yeran Liu
- Guangxi Key Laboratory of Electrochemical Energy Materials, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development, School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, P. R. China.
| | - Taoyuan Liang
- Guangxi Key Laboratory of Electrochemical Energy Materials, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development, School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, P. R. China.
| | - Jun Jiang
- Guangxi Key Laboratory of Electrochemical Energy Materials, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development, School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, P. R. China.
| | - Zhuan Zhang
- Guangxi Key Laboratory of Electrochemical Energy Materials, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development, School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, P. R. China.
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9
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Molyneux S, Goss RJM. Fully Aqueous and Air-Compatible Cross-Coupling of Primary Alkyl Halides with Aryl Boronic Species: A Possible and Facile Method. ACS Catal 2023; 13:6365-6374. [PMID: 37180963 PMCID: PMC10167655 DOI: 10.1021/acscatal.3c00252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 04/04/2023] [Indexed: 05/16/2023]
Abstract
Aqueous transformations confer many advantages, including decreased environmental impact and increased opportunity for biomolecule modulation. Although several studies have been conducted to enable the cross-coupling of aryl halides in aqueous conditions, until now a process for the cross-coupling of primary alkyl halides in aqueous conditions was missing from the catalytic toolbox and considered impossible. Alkyl halide coupling in water suffers from severe problems. The reasons for this include the strong propensity for β-hydride elimination, the need for highly air- and water-sensitive catalysts and reagents, and the intolerance of many hydrophilic groups to cross-coupling conditions. Here, we report a broadly applicable and readily accessible process for the cross-coupling of water-soluble alkyl halides in water and air by using simple and commercially available bench-stable reagents. The trisulfonated aryl phosphine TXPTS in combination with a water-soluble palladium salt Na2PdCl4 allowed for the Suzuki-Miyaura coupling of water-soluble alkyl halides with aryl boronic acids, boronic esters, and borofluorate salts in mild, fully aqueous conditions. Multiple challenging functionalities, including unprotected amino acids, an unnatural halogenated amino acid within a peptide, and herbicides can be diversified in water. Structurally complex natural products were used as testbeds to showcase the late-stage tagging methodology of marine natural products to enable liquid chromatography-mass spectrometry (LC-MS) detection. This enabling methodology therefore provides a general method for the environmentally friendly and biocompatible derivatization of sp3 alkyl halide bonds.
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Affiliation(s)
- Samuel Molyneux
- School of Chemistry, University of St Andrews, North Haugh, St Andrews, Fife KY16 9ST, U.K.
| | - Rebecca J. M. Goss
- School of Chemistry, University of St Andrews, North Haugh, St Andrews, Fife KY16 9ST, U.K.
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10
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Liu Y, Gao S, Liu P, Kong W, Liu J, Jiang Y. Integration of chemo- and bio-catalysis to intensify bioprocesses. PHYSICAL SCIENCES REVIEWS 2023. [DOI: 10.1515/psr-2022-0103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/31/2023]
Abstract
Abstract
Nature has evolved highly efficient and complex systems to perform cascade reactions by the elegant combination of desired enzymes, offering a strategy for achieving efficient bioprocess intensification. Chemoenzymatic cascade reactions (CECRs) merge the complementary strengths of chemo-catalysis and bio-catalysis, such as the wide reactivity of chemo-catalysts and the exquisite selective properties of biocatalysts, representing an important step toward emulating nature to construct artificial systems for achieving bioprocess intensification. However, the incompatibilities between the two catalytic disciplines make CECRs highly challenging. In recent years, great advances have been made to develop strategies for constructing CECRs. In this regard, this chapter introduces the general concepts and representative strategies, including temporal compartmentalization, spatial compartmentalization and chemo-bio nanoreactors. Particularly, we focus on what platform methods and technologies can be used, and how to implement these strategies. The future challenges and strategies in this burgeoning research area are also discussed.
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11
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González-Granda S, Albarrán-Velo J, Lavandera I, Gotor-Fernández V. Expanding the Synthetic Toolbox through Metal-Enzyme Cascade Reactions. Chem Rev 2023; 123:5297-5346. [PMID: 36626572 DOI: 10.1021/acs.chemrev.2c00454] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
The combination of metal-, photo-, enzyme-, and/or organocatalysis provides multiple synthetic solutions, especially when the creation of chiral centers is involved. Historically, enzymes and transition metal species have been exploited simultaneously through dynamic kinetic resolutions of racemates. However, more recently, linear cascades have appeared as elegant solutions for the preparation of valuable organic molecules combining multiple bioprocesses and metal-catalyzed transformations. Many advantages are derived from this symbiosis, although there are still bottlenecks to be addressed including the successful coexistence of both catalyst types, the need for compatible reaction media and mild conditions, or the minimization of cross-reactivities. Therefore, solutions are here also provided by means of catalyst coimmobilization, compartmentalization strategies, flow chemistry, etc. A comprehensive review is presented focusing on the period 2015 to early 2022, which has been divided into two main sections that comprise first the use of metals and enzymes as independent catalysts but working in an orchestral or sequential manner, and later their application as bionanohybrid materials through their coimmobilization in adequate supports. Each part has been classified into different subheadings, the first part based on the reaction catalyzed by the metal catalyst, while the development of nonasymmetric or stereoselective processes was considered for the bionanohybrid section.
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Affiliation(s)
- Sergio González-Granda
- Organic and Inorganic Chemistry Department, Universidad de Oviedo, 33006 Oviedo, Asturias, Spain
| | - Jesús Albarrán-Velo
- Organic and Inorganic Chemistry Department, Universidad de Oviedo, 33006 Oviedo, Asturias, Spain
| | - Iván Lavandera
- Organic and Inorganic Chemistry Department, Universidad de Oviedo, 33006 Oviedo, Asturias, Spain
| | - Vicente Gotor-Fernández
- Organic and Inorganic Chemistry Department, Universidad de Oviedo, 33006 Oviedo, Asturias, Spain
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12
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Schnepel C, Moritzer AC, Gäfe S, Montua N, Minges H, Nieß A, Niemann HH, Sewald N. Enzymatic Late-Stage Halogenation of Peptides. Chembiochem 2023; 24:e202200569. [PMID: 36259362 PMCID: PMC10099709 DOI: 10.1002/cbic.202200569] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 10/18/2022] [Indexed: 01/05/2023]
Abstract
The late-stage site-selective derivatisation of peptides has many potential applications in structure-activity relationship studies and postsynthetic modification or conjugation of bioactive compounds. The development of orthogonal methods for C-H functionalisation is crucial for such peptide derivatisation. Among them, biocatalytic methods are increasingly attracting attention. Tryptophan halogenases emerged as valuable catalysts to functionalise tryptophan (Trp), while direct enzyme-catalysed halogenation of synthetic peptides is yet unprecedented. Here, it is reported that the Trp 6-halogenase Thal accepts a wide range of amides and peptides containing a Trp moiety. Increasing the sequence length and reaction optimisation made bromination of pentapeptides feasible with good turnovers and a broad sequence scope, while regioselectivity turned out to be sequence dependent. Comparison of X-ray single crystal structures of Thal in complex with d-Trp and a dipeptide revealed a significantly altered binding mode for the peptide. The viability of this bioorthogonal approach was exemplified by halogenation of a cyclic RGD peptide.
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Affiliation(s)
- Christian Schnepel
- Organische und Bioorganische Chemie, Fakultät für Chemie, Universität Bielefeld, Universitätsstraße 25, 33615, Bielefeld, Germany.,Present address: Department of Chemistry, Manchester Institute of Biotechnology, The University of Manchester, 131 Princess Street, Manchester, M1 7DN, UK
| | - Ann-Christin Moritzer
- Strukturbiochemie, Fakultät für Chemie, Universität Bielefeld, Universitätsstraße 25, 33615, Bielefeld, Germany
| | - Simon Gäfe
- Strukturbiochemie, Fakultät für Chemie, Universität Bielefeld, Universitätsstraße 25, 33615, Bielefeld, Germany
| | - Nicolai Montua
- Organische und Bioorganische Chemie, Fakultät für Chemie, Universität Bielefeld, Universitätsstraße 25, 33615, Bielefeld, Germany
| | - Hannah Minges
- Organische und Bioorganische Chemie, Fakultät für Chemie, Universität Bielefeld, Universitätsstraße 25, 33615, Bielefeld, Germany
| | - Anke Nieß
- Organische und Bioorganische Chemie, Fakultät für Chemie, Universität Bielefeld, Universitätsstraße 25, 33615, Bielefeld, Germany
| | - Hartmut H Niemann
- Strukturbiochemie, Fakultät für Chemie, Universität Bielefeld, Universitätsstraße 25, 33615, Bielefeld, Germany
| | - Norbert Sewald
- Organische und Bioorganische Chemie, Fakultät für Chemie, Universität Bielefeld, Universitätsstraße 25, 33615, Bielefeld, Germany
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13
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Huang W, Huang S, Sun Z, Zhang W, Zeng Z, Yuan B. Chemoenzymatic Synthesis of Sterically Hindered Biaryls by Suzuki Coupling and Vanadium Chloroperoxidase Catalyzed Halogenations. Chembiochem 2023; 24:e202200610. [PMID: 36325954 DOI: 10.1002/cbic.202200610] [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: 10/27/2022] [Revised: 11/02/2022] [Indexed: 11/06/2022]
Abstract
Halogenated biaryls are vital structural skeletons in bioactive products. In this study, an effective chemoenzymatic halogenation by vanadium-dependent chloroperoxidase from Camponotus inaequalis (CiVCPO) enabled the transformation of freely rotating biaryl bonds to sterically hindered axis. The yields were up to 84 % for the tribrominated biaryl products and up to 65 % when isolated. Furthermore, a one-pot, two-step chemoenzymatic strategy by incorporating transition metal catalyzed Suzuki coupling and the chemoenzymatic halogenation in aqueous phase were described. This strategy demonstrates a simplified one-pot reaction sequence with organometallic and biocatalytic procedures under economical and environmentally beneficial conditions that may inspire further research on synthesis of sterically hindered biaryls.
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Affiliation(s)
- Wansheng Huang
- School of Pharmacy, Hubei University of Science and Technology, 88 Xianning Avenue, Xianning, Hubei, 437100, P. R. China.,Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, 32 West 7th Avenue, Tianjin, 300308, P. R. China
| | - Shengtang Huang
- School of Pharmacy, Hubei University of Science and Technology, 88 Xianning Avenue, Xianning, Hubei, 437100, P. R. China
| | - Zhoutong Sun
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, 32 West 7th Avenue, Tianjin, 300308, P. R. China.,National Innovation Center for Synthetic Biotechnology, 32 West 7th Avenue, Tianjin, 300308, P. R. China
| | - Wuyuan Zhang
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, 32 West 7th Avenue, Tianjin, 300308, P. R. China.,National Innovation Center for Synthetic Biotechnology, 32 West 7th Avenue, Tianjin, 300308, P. R. China
| | - Zhigang Zeng
- School of Nuclear Technology and Chemistry & Biology, Hubei Key Laboratory of Radiation Chemistry and Functional Materials, Hubei University of Science and Technology, 88 Xianning Avenue, Xianning, Hubei, 437100, P. R. China.,Hubei Industry Technology Research Institute of Intelligent Health, 88 Xianning Avenue, Xianning, Hubei, 437100, P. R. China
| | - Bo Yuan
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, 32 West 7th Avenue, Tianjin, 300308, P. R. China.,National Innovation Center for Synthetic Biotechnology, 32 West 7th Avenue, Tianjin, 300308, P. R. China
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14
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Abstract
Chemoenzymatic catalysis, by definition, involves the merging of sequential reactions using both chemocatalysis and biocatalysis, typically in a single reaction vessel. A major challenge, the solution to which, however, is associated with numerous advantages, is to run such one-pot processes in water: the majority of enzyme-catalyzed processes take place in water as Nature's reaction medium, thus enabling a broad synthetic diversity when using water due to the option to use virtually all types of enzymes. Furthermore, water is cheap, abundantly available, and environmentally friendly, thus making it, in principle, an ideal reaction medium. On the other hand, most chemocatalysis is routinely performed today in organic solvents (which might deactivate enzymes), thus appearing to make it difficult to combine such reactions with biocatalysis toward one-pot cascades in water. Several creative approaches and solutions that enable such combinations of chemo- and biocatalysis in water to be realized and applied to synthetic problems are presented herein, reflecting the state-of-the-art in this blossoming field. Coverage has been sectioned into three parts, after introductory remarks: (1) Chapter 2 focuses on historical developments that initiated this area of research; (2) Chapter 3 describes key developments post-initial discoveries that have advanced this field; and (3) Chapter 4 highlights the latest achievements that provide attractive solutions to the main question of compatibility between biocatalysis (used predominantly in aqueous media) and chemocatalysis (that remains predominantly performed in organic solvents), both Chapters covering mainly literature from ca. 2018 to the present. Chapters 5 and 6 provide a brief overview as to where the field stands, the challenges that lie ahead, and ultimately, the prognosis looking toward the future of chemoenzymatic catalysis in organic synthesis.
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Affiliation(s)
- Harald Gröger
- Chair of Industrial Organic Chemistry and Biotechnology, Faculty of Chemistry, Bielefeld University, Universitätsstraße 25, 33615Bielefeld, Germany
| | - Fabrice Gallou
- Chemical & Analytical Development, Novartis Pharma AG, 4056Basel, Switzerland
| | - Bruce H Lipshutz
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California93106, United States
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15
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Mechanism-guided tunnel engineering to increase the efficiency of a flavin-dependent halogenase. Nat Catal 2022. [DOI: 10.1038/s41929-022-00800-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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16
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Ascaso-Alegre C, MANGAS JUAN. Construction of chemoenzymatic linear cascades for the synthesis of chiral compounds. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200093] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Christian Ascaso-Alegre
- CSIC: Consejo Superior de Investigaciones Cientificas Institute of Chemical Synthesis and Homogeneous Catalysis SPAIN
| | - JUAN MANGAS
- ARAID: Agencia Aragonesa para la Investigacion y Desarrollo ISQCH PEDRO CERBUNA, 12FACULTAD DE CIENCIAS D 50009 ZARAGOZA SPAIN
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17
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Bering L, Thompson J, Micklefield J. New reaction pathways by integrating chemo- and biocatalysis. TRENDS IN CHEMISTRY 2022. [DOI: 10.1016/j.trechm.2022.02.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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18
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Menon N, Richmond D, Rahman MR, Menon BRK. Versatile and Facile One-Pot Biosynthesis for Amides and Carboxylic Acids in E. coli by Engineering Auxin Pathways of Plant Microbiomes. ACS Catal 2022. [DOI: 10.1021/acscatal.1c04901] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Navya Menon
- The Warwick Integrative Synthetic Biology Centre, The University of Warwick, Coventry CV4 7AL, U.K
- Collaborative Teaching Laboratory, The University of Birmingham, Birmingham B15 2TT, U.K
| | - Daniel Richmond
- The Warwick Integrative Synthetic Biology Centre, The University of Warwick, Coventry CV4 7AL, U.K
| | - Mohammad Rejaur Rahman
- The Warwick Integrative Synthetic Biology Centre, The University of Warwick, Coventry CV4 7AL, U.K
| | - Binuraj R. K. Menon
- The Warwick Integrative Synthetic Biology Centre, The University of Warwick, Coventry CV4 7AL, U.K
- School of Biological Sciences, The University of Portsmouth, Portsmouth PO1 2DY, U.K
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19
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Merging enzymes with chemocatalysis for amide bond synthesis. Nat Commun 2022; 13:380. [PMID: 35046426 PMCID: PMC8770729 DOI: 10.1038/s41467-022-28005-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Accepted: 12/16/2021] [Indexed: 01/03/2023] Open
Abstract
Amides are one of the most fundamental chemical bonds in nature. In addition to proteins and other metabolites, many valuable synthetic products comprise amide bonds. Despite this, there is a need for more sustainable amide synthesis. Herein, we report an integrated next generation multi-catalytic system, merging nitrile hydratase enzymes with a Cu-catalysed N-arylation reaction in a single reaction vessel, for the construction of ubiquitous amide bonds. This synergistic one-pot combination of chemo- and biocatalysis provides an amide bond disconnection to precursors, that are orthogonal to those in classical amide synthesis, obviating the need for protecting groups and delivering amides in a manner unachievable using existing catalytic regimes. Our integrated approach also affords broad scope, very high (molar) substrate loading, and has excellent functional group tolerance, telescoping routes to natural product derivatives, drug molecules, and challenging chiral amides under environmentally friendly conditions at scale. Proteins, other metabolites and many valuable synthetic products contain amide bonds and there is a need for more sustainable amide synthesis routes. Here the authors show an integrated next generation multi-catalytic system, merging nitrile hydratase enzymes with a Cu-catalysed N-arylation reaction in a single reaction vessel, for the construction of ubiquitous amide bonds.
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20
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Büchler J, Malca SH, Patsch D, Voss M, Turner NJ, Bornscheuer UT, Allemann O, Le Chapelain C, Lumbroso A, Loiseleur O, Buller R. Algorithm-aided engineering of aliphatic halogenase WelO5* for the asymmetric late-stage functionalization of soraphens. Nat Commun 2022; 13:371. [PMID: 35042883 PMCID: PMC8766452 DOI: 10.1038/s41467-022-27999-1] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Accepted: 12/17/2021] [Indexed: 02/08/2023] Open
Abstract
Late-stage functionalization of natural products offers an elegant route to create novel entities in a relevant biological target space. In this context, enzymes capable of halogenating sp3 carbons with high stereo- and regiocontrol under benign conditions have attracted particular attention. Enabled by a combination of smart library design and machine learning, we engineer the iron/α-ketoglutarate dependent halogenase WelO5* for the late-stage functionalization of the complex and chemically difficult to derivatize macrolides soraphen A and C, potent anti-fungal agents. While the wild type enzyme WelO5* does not accept the macrolide substrates, our engineering strategy leads to active halogenase variants and improves upon their apparent kcat and total turnover number by more than 90-fold and 300-fold, respectively. Notably, our machine-learning guided engineering approach is capable of predicting more active variants and allows us to switch the regio-selectivity of the halogenases facilitating the targeted analysis of the derivatized macrolides’ structure-function activity in biological assays. The late-stage functionalization of unactivated carbon–hydrogen bonds is a difficult but important task, which has been met with promising but limited success through synthetic organic chemistry. Here the authors use machine learning to engineer WelO5* halogenase variants, which led to regioselective chlorination of inert C–H bonds on a representative polyketide that is a non-natural substrate for the enzyme.
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Affiliation(s)
- Johannes Büchler
- Competence Center for Biocatalysis, Institute of Chemistry and Biotechnology, Zurich University of Applied Sciences, Einsiedlerstrasse 31, 8820, Wädenswil, Switzerland.,School of Chemistry, The University of Manchester, Manchester Institute of Biotechnology, Manchester, M1 7DN, United Kingdom
| | - Sumire Honda Malca
- Competence Center for Biocatalysis, Institute of Chemistry and Biotechnology, Zurich University of Applied Sciences, Einsiedlerstrasse 31, 8820, Wädenswil, Switzerland
| | - David Patsch
- Competence Center for Biocatalysis, Institute of Chemistry and Biotechnology, Zurich University of Applied Sciences, Einsiedlerstrasse 31, 8820, Wädenswil, Switzerland.,Institute of Biochemistry, Dept. of Biotechnology & Enzyme Catalysis, Greifswald University, Felix-Hausdorff-Strasse 4, 17487, Greifswald, Germany
| | - Moritz Voss
- Competence Center for Biocatalysis, Institute of Chemistry and Biotechnology, Zurich University of Applied Sciences, Einsiedlerstrasse 31, 8820, Wädenswil, Switzerland
| | - Nicholas J Turner
- School of Chemistry, The University of Manchester, Manchester Institute of Biotechnology, Manchester, M1 7DN, United Kingdom
| | - Uwe T Bornscheuer
- Institute of Biochemistry, Dept. of Biotechnology & Enzyme Catalysis, Greifswald University, Felix-Hausdorff-Strasse 4, 17487, Greifswald, Germany
| | - Oliver Allemann
- Syngenta Crop Protection AG, Schaffhauserstrasse 101, 4332, Stein, Switzerland.,Idorsia Pharmaceuticals Ltd, Hegenheimermattweg 91, 4123, Allschwil, Switzerland
| | | | - Alexandre Lumbroso
- Syngenta Crop Protection AG, Schaffhauserstrasse 101, 4332, Stein, Switzerland
| | - Olivier Loiseleur
- Syngenta Crop Protection AG, Schaffhauserstrasse 101, 4332, Stein, Switzerland.
| | - Rebecca Buller
- Competence Center for Biocatalysis, Institute of Chemistry and Biotechnology, Zurich University of Applied Sciences, Einsiedlerstrasse 31, 8820, Wädenswil, Switzerland.
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21
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Discovering and harnessing oxidative enzymes for chemoenzymatic synthesis and diversification of anticancer camptothecin analogues. Commun Chem 2021; 4:177. [PMID: 36697859 PMCID: PMC9814082 DOI: 10.1038/s42004-021-00602-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Accepted: 11/05/2021] [Indexed: 01/28/2023] Open
Abstract
Semi-synthetic derivatives of camptothecin, a quinoline alkaloid found in the Camptotheca acuminata tree, are potent anticancer agents. Here we discovered two C. acuminata cytochrome P450 monooxygenases that catalyze regio-specific 10- and 11-oxidations of camptothecin, and demonstrated combinatorial chemoenzymatic C-H functionalizations of the camptothecin scaffold using the new enzymes to produce a suite of anticancer drugs, including topotecan (Hycamtin®) and irinotecan (Camptosar®). This work sheds new light into camptothecin metabolism, and represents greener approaches for accessing clinically relevant camptothecin derivatives.
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22
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Cosgrove S, Mattey A. Reaching new biocatalytic reactivity using continuous flow reactors. Chemistry 2021; 28:e202103607. [PMID: 34882844 PMCID: PMC9303305 DOI: 10.1002/chem.202103607] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Indexed: 12/02/2022]
Abstract
The use of flow reactors in biocatalysis has increased significantly in recent years. Chemists have begun to design flow systems that even allow new biocatalytic reactions to take place. This concept article will focus on the design of flow systems that have allowed enzymes to go beyond their limits in batch. The case is made for moving towards fully continuous systems. With flow chemistry increasingly seen as an enabling technology for automated synthesis, and with advancements in AI‐assisted enzyme design, there is a real possibility to fully automate the development and implementation of a continuous biocatalytic processes. This will lead to significantly improved enzyme processes for synthesis.
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Affiliation(s)
- Sebastian Cosgrove
- Keele University, School of Chemical and Physical Sciences, Lennard-Jones Laboratories, Keele University, ST5 5BG, Keele, UNITED KINGDOM
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23
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Heckmann CM, Paradisi F. GPhos Ligand Enables Production of Chiral N-Arylamines in a Telescoped Transaminase-Buchwald-Hartwig Amination Cascade in the Presence of Excess Amine Donor. Chemistry 2021; 27:16616-16620. [PMID: 34585789 PMCID: PMC9292530 DOI: 10.1002/chem.202103472] [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: 09/23/2021] [Indexed: 11/19/2022]
Abstract
The combination of biocatalysis and chemocatalysis can be more powerful than either technique alone. However, combining the two is challenging due to typically very different reaction conditions. Herein, chiral N‐aryl amines, key features of many active pharmaceutical ingredients, are accessed in excellent enantioselectivity (typically>99.5 % ee) by combining transaminases with the Buchwald‐Hartwig amination. By employing a bi‐phasic buffer‐toluene system as well as the ligand GPhos, the telescoped cascade proceeded with up to 89 % overall conversion in the presence of excess alanine. No coupling to alanine was observed.
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Affiliation(s)
- Christian M Heckmann
- School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, UK
| | - Francesca Paradisi
- School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, UK.,Dept. of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, Freiestrasse 3, 3012, Bern, Switzerland
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24
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Golombek F, Haumann M, Knoll MS, Fröba AP, Castiglione K. Three Steps, Two Enzymes, One Pot, but a Multitude of Nanocompartments: Combined Cycles of Kinetic Resolutions and Re-racemization with Incompatible Biocatalysts. ACS OMEGA 2021; 6:29192-29200. [PMID: 34746608 PMCID: PMC8567398 DOI: 10.1021/acsomega.1c04694] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Accepted: 10/04/2021] [Indexed: 06/01/2023]
Abstract
Deracemizations are clearly preferable to kinetic resolutions in the production of chiral molecules from racemates, as they allow up to 100% chemical and optical yield. Here we present a new process route for multienzymatic deracemizations that is relevant for reaction systems with incompatible reaction conditions of the biocatalysts. This often applies to combinations of lipases used for stereoselective acylation and solvent-sensitive racemases. By encapsulating a model racemase in polymeric vesicles, it was protected from inactivation by the organic solvent up to phase proportions of 99%. As high yields in the lipase reaction required either water proportions well below 1% or racemase-denaturating acyl donor concentrations, a one-pot reaction was implemented through the sequential use of lipase and racemase-containing nanocompartments. This strategy allowed us to perform two kinetic resolutions with intermittent re-racemization in one pot yielding 72% (0.72 mM after 120 h) of an enantiopure product.
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Affiliation(s)
- Florian Golombek
- Department
of Chemical and Biological Engineering, Institute of Bioprocess Engineering, Friedrich-Alexander University Erlangen-Nürnberg, Paul-Gordan-Str. 3, 91052 Erlangen, Germany
| | - Marco Haumann
- Department
Chemie- und Bioingenieurwesen, Lehrstuhl für Chemische Reaktionstechnik
(CRT), Friedrich-Alexander Universität
Erlangen-Nürnberg (FAU), Egerlandstr. 3, Erlangen 91058, Germany
| | - Matthias S.G. Knoll
- Department
of Chemical and Biological Engineering, Institute of Advanced Optical
Technologies − Thermophysical Properties, Friedrich-Alexander University Erlangen-Nürnberg, Paul-Gordan-Str. 8, Erlangen 91052, Germany
- Erlangen
Graduate School of Advanced Optical Technologies (SAOT), Friedrich-Alexander University Erlangen-Nürnberg,
Paul-Gordan-Str. 6, 91052 Erlangen, Germany
| | - Andreas Paul Fröba
- Department
of Chemical and Biological Engineering, Institute of Advanced Optical
Technologies − Thermophysical Properties, Friedrich-Alexander University Erlangen-Nürnberg, Paul-Gordan-Str. 8, Erlangen 91052, Germany
- Erlangen
Graduate School of Advanced Optical Technologies (SAOT), Friedrich-Alexander University Erlangen-Nürnberg,
Paul-Gordan-Str. 6, 91052 Erlangen, Germany
| | - Kathrin Castiglione
- Department
of Chemical and Biological Engineering, Institute of Bioprocess Engineering, Friedrich-Alexander University Erlangen-Nürnberg, Paul-Gordan-Str. 3, 91052 Erlangen, Germany
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25
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Prabagar B, Yang Y, Shi Z. Site-selective C-H functionalization to access the arene backbone of indoles and quinolines. Chem Soc Rev 2021; 50:11249-11269. [PMID: 34486584 DOI: 10.1039/d0cs00334d] [Citation(s) in RCA: 79] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The site-selective C-H bond functionalization of heteroarenes can eventually provide chemists with great techniques for editing and building complex molecular scaffolds. During the past decade, benzo-fused N-heterocycles such as indoles and quinolines have been among the most widely investigated organic templates. Early developments have led to site-selective C-H bond functionalization on the pyrrole and pyridine cores of indoles and quinolines; however, C-H functionalization on the benzenoid ring has remained a great challenge in catalysis. In this review, we elaborate on recent developments in the highly challenging functionalization of C-H bonds on the less-reactive benzenoid core of indoles and quinolines. These findings are mainly described as selective directing group assisted strategies, remote C-H functionalization techniques and their reaction mechanisms. The underlying principle in each strategy is elucidated, which aims to facilitate the design of a more advanced structure of heterocycles based on bioactive molecules, synthetic drugs, and material aspects. Moreover, the challenges and perspectives for catalytic C-H functionalization to access the arene backbone of indoles and quinolines are also proposed in the conclusion section.
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Affiliation(s)
- B Prabagar
- State Key Laboratory of Coordination Chemistry, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China.
| | - Youqing Yang
- State Key Laboratory of Coordination Chemistry, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China.
| | - Zhuangzhi Shi
- State Key Laboratory of Coordination Chemistry, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China.
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26
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Li F, Yang LC, Zhang J, Chen JS, Renata H. Stereoselective Synthesis of β-Branched Aromatic α-Amino Acids by Biocatalytic Dynamic Kinetic Resolution*. Angew Chem Int Ed Engl 2021; 60:17680-17685. [PMID: 34056805 DOI: 10.1002/anie.202105656] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Indexed: 01/18/2023]
Abstract
β-Branched noncanonical amino acids are valuable molecules in modern drug development efforts. However, they are still challenging to prepare due to the need to set multiple stereocenters in a stereoselective fashion, and contemporary methods for the synthesis of such compounds often rely on the use of rare-transition-metal catalysts with designer ligands. Herein, we report a highly diastereo- and enantioselective biocatalytic transamination method to prepare a broad range of aromatic β-branched α-amino acids. Mechanistic studies show that the transformation proceeds through dynamic kinetic resolution that is unique to the optimal enzyme. To highlight its utility and practicality, the biocatalytic reaction was applied to the synthesis of several sp3 -rich cyclic fragments and the first total synthesis of jomthonic acid A.
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Affiliation(s)
- Fuzhuo Li
- Department of Chemistry, The Scripps Research Institute, 130 Scripps Way, Jupiter, FL, 33458, USA
| | - Li-Cheng Yang
- Department of Chemistry, The Scripps Research Institute, 130 Scripps Way, Jupiter, FL, 33458, USA
| | - Jingyang Zhang
- Department of Chemistry, The Scripps Research Institute, 130 Scripps Way, Jupiter, FL, 33458, USA
| | - Jason S Chen
- Automated Synthesis Facility, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Hans Renata
- Department of Chemistry, The Scripps Research Institute, 130 Scripps Way, Jupiter, FL, 33458, USA
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27
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Li F, Yang L, Zhang J, Chen JS, Renata H. Stereoselective Synthesis of β‐Branched Aromatic α‐Amino Acids by Biocatalytic Dynamic Kinetic Resolution**. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202105656] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Fuzhuo Li
- Department of Chemistry The Scripps Research Institute 130 Scripps Way Jupiter FL 33458 USA
| | - Li‐Cheng Yang
- Department of Chemistry The Scripps Research Institute 130 Scripps Way Jupiter FL 33458 USA
| | - Jingyang Zhang
- Department of Chemistry The Scripps Research Institute 130 Scripps Way Jupiter FL 33458 USA
| | - Jason S. Chen
- Automated Synthesis Facility The Scripps Research Institute 10550 North Torrey Pines Road La Jolla CA 92037 USA
| | - Hans Renata
- Department of Chemistry The Scripps Research Institute 130 Scripps Way Jupiter FL 33458 USA
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28
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Genomic Determinants Encode the Reactivity and Regioselectivity of Flavin-Dependent Halogenases in Bacterial Genomes and Metagenomes. mSystems 2021; 6:e0005321. [PMID: 34042468 PMCID: PMC8269204 DOI: 10.1128/msystems.00053-21] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Halogenases create diverse natural products by utilizing halide ions and are of great interest in the synthesis of potential pharmaceuticals and agrochemicals. An increasing number of halogenases discovered in microorganisms are annotated as flavin-dependent halogenases (FDHs), but their chemical reactivities are markedly different and the genomic contents associated with such functional distinction have not been revealed yet. Even though the reactivity and regioselectivity of FDHs are essential in the halogenation activity, these FDHs are annotated inaccurately in the protein sequence repositories without characterizing their functional activities. We carried out a comprehensive sequence analysis and biochemical characterization of FDHs. Using a probabilistic model that we built in this study, FDHs were discovered from 2,787 bacterial genomes and 17 sediment metagenomes. We analyzed the essential genomic determinants that are responsible for substrate binding and subsequent reactions: four flavin adenine dinucleotide-binding, one halide-binding, and four tryptophan-binding sites. Compared with previous studies, our study utilizes large-scale genomic information to propose a comprehensive set of sequence motifs that are related to the active sites and regioselectivity. We reveal that the genomic patterns and phylogenetic locations of the FDHs determine the enzymatic reactivities, which was experimentally validated in terms of the substrate scope and regioselectivity. A large portion of publicly available FDHs needs to be reevaluated to designate their correct functions. Our genomic models establish comprehensive links among genotypic information, reactivity, and regioselectivity of FDHs, thereby laying an important foundation for future discovery and classification of novel FDHs. IMPORTANCE Halogenases are playing an important role as tailoring enzymes in biosynthetic pathways. Flavin-dependent tryptophan halogenases (Trp-FDHs) are among the enzymes that have broad substrate scope and high selectivity. From bacterial genomes and metagenomes, we found highly diverse halogenase sequences by using a well-trained profile hidden Markov model built from the experimentally validated halogenases. The characterization of genotype, steady-state activity, substrate scope, and regioselectivity has established comprehensive links between the information encoded in the genomic sequence and reactivity of FDHs reported here. By constructing models for accurate and detailed sequence markers, our work should guide future discovery and classification of novel FDHs.
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29
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Programmable late-stage C−H bond functionalization enabled by integration of enzymes with chemocatalysis. Nat Catal 2021. [DOI: 10.1038/s41929-021-00603-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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30
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De Silva AJ, Sehgal R, Kim J, Bellizzi JJ. Steady-state kinetic analysis of halogenase-supporting flavin reductases BorF and AbeF reveals different kinetic mechanisms. Arch Biochem Biophys 2021; 704:108874. [PMID: 33862020 DOI: 10.1016/j.abb.2021.108874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 04/03/2021] [Accepted: 04/05/2021] [Indexed: 11/28/2022]
Abstract
The short-chain flavin reductases BorF and AbeF reduce FAD to FADH2, which is then used by flavin-dependent halogenases (BorH and AbeH respectively) to regioselectively chlorinate tryptophan in the biosynthesis of indolotryptoline natural products. Recombinant AbeF and BorF were overexpressed and purified as homodimers from E. coli, and copurified with substoichiometric amounts of FAD, which could be easily removed. AbeF and BorF can reduce FAD, FMN, and riboflavin in vitro and are selective for NADH over NADPH. Initial velocity studies in the presence and absence of inhibitors showed that BorF proceeds by a sequential ordered kinetic mechanism in which FAD binds first, while AbeF follows a random-ordered sequence of substrate binding. Fluorescence quenching experiments verified that NADH does not bind BorF in the absence of FAD, and that both AbeF and BorF bind FAD with higher affinity than FADH2. pH-rate profiles of BorF and AbeF were bell-shaped with maximum kcat at pH 7.5, and site-directed mutagenesis of BorF implicated His160 and Arg38 as contributing to the catalytic activity and the pH dependence.
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Affiliation(s)
- Aravinda J De Silva
- Department of Chemistry and Biochemistry, College of Natural Sciences and Mathematics, The University of Toledo Toledo, OH, 43606, USA
| | - Rippa Sehgal
- Department of Chemistry and Biochemistry, College of Natural Sciences and Mathematics, The University of Toledo Toledo, OH, 43606, USA
| | - Jennifer Kim
- Department of Chemistry and Biochemistry, College of Natural Sciences and Mathematics, The University of Toledo Toledo, OH, 43606, USA
| | - John J Bellizzi
- Department of Chemistry and Biochemistry, College of Natural Sciences and Mathematics, The University of Toledo Toledo, OH, 43606, USA.
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31
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Two Novel, Flavin-Dependent Halogenases from the Bacterial Consortia of Botryococcus braunii Catalyze Mono- and Dibromination. Catalysts 2021. [DOI: 10.3390/catal11040485] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Halogen substituents often lead to a profound effect on the biological activity of organic compounds. Flavin-dependent halogenases offer the possibility of regioselective halogenation at non-activated carbon atoms, while employing only halide salts and molecular oxygen. However, low enzyme activity, instability, and narrow substrate scope compromise the use of enzymatic halogenation as an economical and environmentally friendly process. To overcome these drawbacks, it is of tremendous interest to identify novel halogenases with high enzymatic activity and novel substrate scopes. Previously, Neubauer et al. developed a new hidden Markov model (pHMM) based on the PFAM tryptophan halogenase model, and identified 254 complete and partial putative flavin-dependent halogenase genes in eleven metagenomic data sets. In the present study, the pHMM was used to screen the bacterial associates of the Botryococcus braunii consortia (PRJEB21978), leading to the identification of several putative, flavin-dependent halogenase genes. Two of these new halogenase genes were found in one gene cluster of the Botryococcus braunii symbiont Sphingomonas sp. In vitro activity tests revealed that both heterologously expressed enzymes are active flavin-dependent halogenases able to halogenate indole and indole derivatives, as well as phenol derivatives, while preferring bromination over chlorination. Interestingly, SpH1 catalyses only monohalogenation, while SpH2 can catalyse both mono- and dihalogenation for some substrates.
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32
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Kong L, Han X, Chen H, Sun H, Lan Y, Li X. Rhodium(II)-Catalyzed Regioselective Remote C–H Alkylation of Protic Indoles. ACS Catal 2021. [DOI: 10.1021/acscatal.1c01052] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Lingheng Kong
- School of Chemistry and Chemical Engineering, Shaanxi Normal University (SNNU), Xi’an 710062, China
| | - Xi Han
- School of Chemistry and Chemical Engineering, Shaanxi Normal University (SNNU), Xi’an 710062, China
| | - Haohua Chen
- Chongqing Key Laboratory of Theoretical and Computational Chemistry, School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400030, China
| | - Huaming Sun
- School of Chemistry and Chemical Engineering, Shaanxi Normal University (SNNU), Xi’an 710062, China
| | - Yu Lan
- Chongqing Key Laboratory of Theoretical and Computational Chemistry, School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400030, China
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Xingwei Li
- School of Chemistry and Chemical Engineering, Shaanxi Normal University (SNNU), Xi’an 710062, China
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33
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Schnepel C, Dodero VI, Sewald N. Novel Arylindigoids by Late-Stage Derivatization of Biocatalytically Synthesized Dibromoindigo. Chemistry 2021; 27:5404-5411. [PMID: 33496351 PMCID: PMC8048522 DOI: 10.1002/chem.202005191] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Indexed: 11/18/2022]
Abstract
Indigoids represent natural product-based compounds applicable as organic semiconductors and photoresponsive materials. Yet modified indigo derivatives are difficult to access by chemical synthesis. A biocatalytic approach applying several consecutive selective C-H functionalizations was developed that selectively provides access to various indigoids: Enzymatic halogenation of l-tryptophan followed by indole generation with tryptophanase yields 5-, 6- and 7-bromoindoles. Subsequent hydroxylation using a flavin monooxygenase furnishes dibromoindigo that is derivatized by acylation. This four-step one-pot cascade gives dibromoindigo in good isolated yields. Moreover, the halogen substituent allows for late-stage diversification by cross-coupling directly performed in the crude mixture, thus enabling synthesis of a small set of 6,6'-diarylindigo derivatives. This chemoenzymatic approach provides a modular platform towards novel indigoids with attractive spectral properties.
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Affiliation(s)
- Christian Schnepel
- Organische und Bioorganische ChemieFakultät für ChemieUniversität BielefeldUniversitätsstraße 2533615BielefeldGermany
- Present address: School of ChemistryManchester Institute of BiotechnologyThe University of Manchester131 Princess StreetManchesterM1 7DNUK
| | - Veronica I. Dodero
- Organische und Bioorganische ChemieFakultät für ChemieUniversität BielefeldUniversitätsstraße 2533615BielefeldGermany
| | - Norbert Sewald
- Organische und Bioorganische ChemieFakultät für ChemieUniversität BielefeldUniversitätsstraße 2533615BielefeldGermany
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34
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Rowbotham JS, Reeve HA, Vincent KA. Hybrid Chemo-, Bio-, and Electrocatalysis for Atom-Efficient Deuteration of Cofactors in Heavy Water. ACS Catal 2021; 11:2596-2604. [PMID: 33842020 PMCID: PMC8025731 DOI: 10.1021/acscatal.0c03437] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 01/31/2021] [Indexed: 11/29/2022]
Abstract
Deuterium-labeled nicotinamide cofactors such as [4-2H]-NADH can be used as mechanistic probes in biological redox processes and offer a route to the synthesis of selectively [2H] labeled chemicals via biocatalytic reductive deuteration. Atom-efficient routes to the formation and recycling of [4-2H]-NADH are therefore highly desirable but require careful design in order to alleviate the requirement for [2H]-labeled reducing agents. In this work, we explore a suite of electrode or hydrogen gas driven catalyst systems for the generation of [4-2H]-NADH and consider their use for driving reductive deuteration reactions. Catalysts are evaluated for their chemoselectivity, stereoselectivity, and isotopic selectivity, and it is shown that inclusion of an electronically coupled NAD+-reducing enzyme delivers considerable advantages over purely metal based systems, yielding exclusively [4S-2H]-NADH. We further demonstrate the applicability of these types of [4S-2H]-NADH recycling systems for driving reductive deuteration reactions, regardless of the facioselectivity of the coupled enzyme.
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Affiliation(s)
- Jack S. Rowbotham
- Department of Chemistry,
Inorganic Chemistry Laboratory, University
of Oxford, South Parks Road, Oxford OX1 3QR, United Kingdom
| | - Holly A. Reeve
- Department of Chemistry,
Inorganic Chemistry Laboratory, University
of Oxford, South Parks Road, Oxford OX1 3QR, United Kingdom
| | - Kylie A. Vincent
- Department of Chemistry,
Inorganic Chemistry Laboratory, University
of Oxford, South Parks Road, Oxford OX1 3QR, United Kingdom
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35
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Recent advance of chemoenzymatic catalysis for the synthesis of chemicals: Scope and challenge. Chin J Chem Eng 2021. [DOI: 10.1016/j.cjche.2020.12.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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36
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Wang D, Chen X, Wong JJ, Jin L, Li M, Zhao Y, Houk KN, Shi Z. Phosphorus(III)-assisted regioselective C-H silylation of heteroarenes. Nat Commun 2021; 12:524. [PMID: 33483484 PMCID: PMC7822902 DOI: 10.1038/s41467-020-20531-3] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Accepted: 11/24/2020] [Indexed: 01/19/2023] Open
Abstract
Heteroarenes containing carbon-silicon (C-Si) bonds are important building blocks that play an important role in the construction of natural products, pharmaceuticals, and organic materials. In this context, the C-H silylation of heteroarenes is a topic of intense interest. Indole C-H silylation can preferentially occur at the nucleophilic C3 and C2 position (pyrrole core), while accessing the C4-C7 positions (benzene core) of the indole remains highly challenging. Here, we show a general strategy for the regioselective C7-H silylation of indole derivatives. Mainly, the regioselectivity is determined by strong coordination of the palladium catalyst with phosphorus (III) directing group. Using this expedient synthetic strategy, the diverse C7-silylated indoles are synthesized effectively which exhibits the broad functional group compatibility. Moreover, this protocol also been extended to other heteroarenes such as carbazoles. The obtained silylated indoles have been employed in various transformations to enable the corresponding differently functionalized indole derivatives. Significantly, a cyclopalladated intermediate is successfully synthesized to test the hypothesis about the P(III)-directed C-H metalation event. A series of mechanistic experiments and density functional theory (M06-2X) calculations has shown the preferred pathway of this directed C-H silylation process.
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Affiliation(s)
- Dingyi Wang
- State Key Laboratory of Coordination Chemistry, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, China
| | - Xiangyang Chen
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA, USA
| | - Jonathan J Wong
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA, USA
| | - Liqun Jin
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, China
| | - Mingjie Li
- State Key Laboratory of Coordination Chemistry, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, China
| | - Yue Zhao
- State Key Laboratory of Coordination Chemistry, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, China
| | - K N Houk
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA, USA.
| | - Zhuangzhi Shi
- State Key Laboratory of Coordination Chemistry, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, China.
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37
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Peñafiel I, Dryfe RAW, Turner NJ, Greaney MF. Integrated Electro‐Biocatalysis for Amine Alkylation with Alcohols. ChemCatChem 2021. [DOI: 10.1002/cctc.202001757] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Itziar Peñafiel
- Department of Chemistry The University of Manchester Oxford Road Manchester M13 9PL UK
- Future Biomanufacturing Research Hub The University of Manchester Manchester Institute of Biotechnology 131 Princess Street Manchester M1 7DN UK
| | - Robert A. W. Dryfe
- Department of Chemistry The University of Manchester Oxford Road Manchester M13 9PL UK
| | - Nicholas J. Turner
- Department of Chemistry The University of Manchester Oxford Road Manchester M13 9PL UK
- Future Biomanufacturing Research Hub The University of Manchester Manchester Institute of Biotechnology 131 Princess Street Manchester M1 7DN UK
| | - Michael F. Greaney
- Department of Chemistry The University of Manchester Oxford Road Manchester M13 9PL UK
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38
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Kemker I, Schröder DC, Feiner RC, Müller KM, Marion A, Sewald N. Tuning the Biological Activity of RGD Peptides with Halotryptophans†. J Med Chem 2020; 64:586-601. [PMID: 33356253 DOI: 10.1021/acs.jmedchem.0c01536] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
An array of l- and d-halotryptophans with different substituents at the indole moiety was synthesized employing either enzymatic halogenation by halogenases or incorporation of haloindoles using tryptophan synthase. Introduction of these Trp derivatives into RGD peptides as a benchmark system was performed to investigate their influence on bioactivity. Halotryptophan-containing RGD peptides display increased affinity toward integrin αvβ3 and enhanced selectivity over integrin α5β1. In addition, bromotryptophan was exploited as a platform for late-stage diversification by Suzuki-Miyaura cross-coupling (SMC), resulting in new-to-nature biaryl motifs. These peptides show enhanced affinity toward αvβ3, good affinity to αvβ8, and remarkable selectivity over α5β1 and αIIbβ3 while featuring fluorogenic properties. Their feasibility as a probe was demonstrated in vitro. Extensive molecular dynamics simulations were undertaken to elucidate NMR and high-performance liquid chromatography (HPLC) data for these late-stage diversified cyclic RGD peptides and to further characterize their conformational preferences.
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Affiliation(s)
- Isabell Kemker
- Organic and Bioorganic Chemistry, Department of Chemistry, Bielefeld University, Universitätsstraße 25, 33615 Bielefeld, Germany
| | - David C Schröder
- Organic and Bioorganic Chemistry, Department of Chemistry, Bielefeld University, Universitätsstraße 25, 33615 Bielefeld, Germany
| | - Rebecca C Feiner
- Cellular and Molecular Biotechnology, Faculty of Technology, Bielefeld University, Universitätsstraße 25, 33615 Bielefeld, Germany
| | - Kristian M Müller
- Cellular and Molecular Biotechnology, Faculty of Technology, Bielefeld University, Universitätsstraße 25, 33615 Bielefeld, Germany
| | - Antoine Marion
- Department of Chemistry, Middle East Technical University, Kimya Bölümü Üniversiteler Mah., Çankaya, 06800 Ankara, Turkey
| | - Norbert Sewald
- Organic and Bioorganic Chemistry, Department of Chemistry, Bielefeld University, Universitätsstraße 25, 33615 Bielefeld, Germany.,Department of Chemistry, Middle East Technical University, Kimya Bölümü Üniversiteler Mah., Çankaya, 06800 Ankara, Turkey
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39
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Heckmann CM, Paradisi F. Looking Back: A Short History of the Discovery of Enzymes and How They Became Powerful Chemical Tools. ChemCatChem 2020; 12:6082-6102. [PMID: 33381242 PMCID: PMC7756376 DOI: 10.1002/cctc.202001107] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 09/02/2020] [Indexed: 12/20/2022]
Abstract
Enzymatic approaches to challenges in chemical synthesis are increasingly popular and very attractive to industry given their green nature and high efficiency compared to traditional methods. In this historical review we highlight the developments across several fields that were necessary to create the modern field of biocatalysis, with enzyme engineering and directed evolution at its core. We exemplify the modular, incremental, and highly unpredictable nature of scientific discovery, driven by curiosity, and showcase the resulting examples of cutting-edge enzymatic applications in industry.
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Affiliation(s)
- Christian M Heckmann
- School of Chemistry University of Nottingham University Park Nottingham NG7 2RD UK
| | - Francesca Paradisi
- School of Chemistry University of Nottingham University Park Nottingham NG7 2RD UK
- Department of Chemistry and Biochemistry University of Bern Freiestrasse 3 3012 Bern Switzerland
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40
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Naapuri JM, Åberg GA, Palomo JM, Deska J. Arylative Allenol Cyclization via Sequential One‐pot Enzyme & Palladium Catalysis. ChemCatChem 2020. [DOI: 10.1002/cctc.202001619] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Janne M. Naapuri
- Department of Chemistry Aalto University Kemistintie 1 02150 Espoo Finland
| | - Gustav A. Åberg
- Department of Chemistry Aalto University Kemistintie 1 02150 Espoo Finland
| | - Jose M. Palomo
- Department of Biocatalysis Institute of Catalysis (CSIC) c/ Marie Curie 2 28049 Madrid Spain
| | - Jan Deska
- Department of Chemistry Aalto University Kemistintie 1 02150 Espoo Finland
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41
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Dachwitz S, Duwe DH, Wang YH, Gruß H, Hannappel Y, Hellweg T, Sewald N. Suzuki-Miyaura Cross-Coupling of Bromotryptophan Derivatives at Ambient Temperature. Chemistry 2020; 26:16357-16364. [PMID: 32639079 PMCID: PMC7756874 DOI: 10.1002/chem.202002454] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 06/23/2020] [Indexed: 02/06/2023]
Abstract
Mild reaction conditions are highly desirable for bio‐orthogonal side chain derivatizations of amino acids, peptides or proteins due to the sensitivity of these substrates. Transition metal catalysed cross‐couplings such as Suzuki–Miyaura reactions are highly versatile, but usually require unfavourable reaction conditions, in particular, when applied with aryl bromides. Ligand‐free solvent‐stabilised Pd‐nanoparticles represent an efficient and sustainable alternative to conventional phosphine‐based catalysts, because the cross‐coupling can be performed at considerably lower temperature. We report on the application of such a highly reactive heterogeneous catalyst for the Suzuki–Miyaura cross‐coupling of brominated tryptophan derivatives. The solvent‐stabilised Pd‐nanoparticles are even more efficient than the literature‐known ADHP‐Pd precatalyst. Interestingly, the latter also leads to the formation of quasi‐homogeneous Pd‐nanoparticles as the catalytic species. One advantage of our approach is the compatibility with aqueous and aerobic conditions at near‐ambient temperatures and short reaction times of only 2 h. The influence of different Nα‐protecting groups, boronic acids as well as the impact of different amino acid side chains in bromotryptophan‐containing peptides has been studied. Notably, a surprising acceleration of the catalysis was observed when palladium‐coordinating side chains were present in proximal positions.
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Affiliation(s)
- Steffen Dachwitz
- Department of Chemistry, Organic and Bioorganic Chemistry, Bielefeld University, Universitätsstraße 25, 33615, Bielefeld, Germany
| | - Dario H Duwe
- Department of Chemistry, Organic and Bioorganic Chemistry, Bielefeld University, Universitätsstraße 25, 33615, Bielefeld, Germany
| | - Yating Hong Wang
- Department of Chemistry, Organic and Bioorganic Chemistry, Bielefeld University, Universitätsstraße 25, 33615, Bielefeld, Germany
| | - Hendrik Gruß
- Department of Chemistry, Organic and Bioorganic Chemistry, Bielefeld University, Universitätsstraße 25, 33615, Bielefeld, Germany
| | - Yvonne Hannappel
- Department of Chemistry, Physical Chemistry, Bielefeld University, Universitätsstraße 25, 33615, Bielefeld, Germany
| | - Thomas Hellweg
- Department of Chemistry, Physical Chemistry, Bielefeld University, Universitätsstraße 25, 33615, Bielefeld, Germany
| | - Norbert Sewald
- Department of Chemistry, Organic and Bioorganic Chemistry, Bielefeld University, Universitätsstraße 25, 33615, Bielefeld, Germany
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42
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Menon BRK, Richmond D, Menon N. Halogenases for biosynthetic pathway engineering: Toward new routes to naturals and non-naturals. CATALYSIS REVIEWS-SCIENCE AND ENGINEERING 2020. [DOI: 10.1080/01614940.2020.1823788] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Binuraj R. K. Menon
- Warwick Integrative Synthetic Biology Centre, School of Life Sciences, University of Warwick, Coventry, UK
| | - Daniel Richmond
- Warwick Integrative Synthetic Biology Centre, School of Life Sciences, University of Warwick, Coventry, UK
| | - Navya Menon
- Warwick Integrative Synthetic Biology Centre, School of Life Sciences, University of Warwick, Coventry, UK
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43
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Ramsden JI, Cosgrove SC, Turner NJ. Is it time for biocatalysis in fragment-based drug discovery? Chem Sci 2020; 11:11104-11112. [PMID: 34094353 PMCID: PMC8162304 DOI: 10.1039/d0sc04103c] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Accepted: 10/07/2020] [Indexed: 12/26/2022] Open
Abstract
The use of biocatalysts for fragment-based drug discovery has yet to be fully investigated, despite the promise enzymes hold for the synthesis of poly-functional, non-protected small molecules. Here we analyze products of the biocatalysis literature to demonstrate the potential for not only fragment generation, but also the enzyme-mediated elaboration of these fragments. Our analysis demonstrates that biocatalytic products can readily populate 3D chemical space, offering diverse catalytic approaches to help generate new, bioactive molecules.
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Affiliation(s)
- Jeremy I Ramsden
- Department of Chemistry, Manchester Institute of Biotechnology, University of Manchester 131 Princess Street Manchester M1 7DN UK
| | - Sebastian C Cosgrove
- Future Biomanufacturing Research Hub, Manchester Institute of Biotechnology, University of Manchester 131 Princess Street Manchester M1 7DN UK
- School of Chemical and Physical Science, Lennard-Jones Laboratories, Keele University Staffordshire ST5 5BG UK
| | - Nicholas J Turner
- Department of Chemistry, Manchester Institute of Biotechnology, University of Manchester 131 Princess Street Manchester M1 7DN UK
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44
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Cosgrove SC, Thompson MP, Ahmed ST, Parmeggiani F, Turner NJ. One-Pot Synthesis of Chiral N-Arylamines by Combining Biocatalytic Aminations with Buchwald-Hartwig N-Arylation. Angew Chem Int Ed Engl 2020; 59:18156-18160. [PMID: 32628797 PMCID: PMC7590080 DOI: 10.1002/anie.202006246] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 07/03/2020] [Indexed: 01/20/2023]
Abstract
The combination of biocatalysis and chemo-catalysis increasingly offers chemists access to more diverse chemical architectures. Here, we describe the combination of a toolbox of chiral-amine-producing biocatalysts with a Buchwald-Hartwig cross-coupling reaction, affording a variety of α-chiral aniline derivatives. The use of a surfactant allowed reactions to be performed sequentially in the same flask, preventing the palladium catalyst from being inhibited by the high concentrations of ammonia, salts, or buffers present in the aqueous media in most cases. The methodology was further extended by combining with a dual-enzyme biocatalytic hydrogen-borrowing cascade in one pot to allow for the conversion of a racemic alcohol to a chiral aniline.
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Affiliation(s)
- Sebastian C. Cosgrove
- Department of ChemistryUniversity of ManchesterManchester Institute of Biotechnology131 Princess StreetManchesterM1 7DNUK
- Future Biomanufacturing Research HubUniversity of ManchesterManchester Institute of Biotechnology131 Princess StreetManchesterM1 7DNUK
| | - Matthew P. Thompson
- Department of ChemistryUniversity of ManchesterManchester Institute of Biotechnology131 Princess StreetManchesterM1 7DNUK
- Current address: EnginZyme ABTomtebodavägen 6, House A1, Floor 417165SolnaSweden
| | - Syed T. Ahmed
- Department of ChemistryUniversity of ManchesterManchester Institute of Biotechnology131 Princess StreetManchesterM1 7DNUK
| | - Fabio Parmeggiani
- Department of ChemistryUniversity of ManchesterManchester Institute of Biotechnology131 Princess StreetManchesterM1 7DNUK
- Department of Chemistry, Materials and Chemical Engineering “G. Natta”Politecnico di MilanoVia Mancinelli 720131MilanoItaly
| | - Nicholas J. Turner
- Department of ChemistryUniversity of ManchesterManchester Institute of Biotechnology131 Princess StreetManchesterM1 7DNUK
- Future Biomanufacturing Research HubUniversity of ManchesterManchester Institute of Biotechnology131 Princess StreetManchesterM1 7DNUK
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45
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One‐Pot Synthesis of Chiral
N
‐Arylamines by Combining Biocatalytic Aminations with Buchwald–Hartwig
N
‐Arylation. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202006246] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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46
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Minges H, Sewald N. Recent Advances in Synthetic Application and Engineering of Halogenases. ChemCatChem 2020. [DOI: 10.1002/cctc.202000531] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Hannah Minges
- Organic and Bioorganic Chemistry Department of Chemistry Bielefeld University Universitätsstraße 25 33501 Bielefeld Germany
| | - Norbert Sewald
- Organic and Bioorganic Chemistry Department of Chemistry Bielefeld University Universitätsstraße 25 33501 Bielefeld Germany
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47
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Abstract
Overall, this review highlights the structures, mechanisms and applications of flavin-dependent halogenases (FDHs) for future development of FDHs as potential biocatalysts. FDHs catalyze incorporation of halogen atoms into a broad range of substrates. The reactions involved in the production of various halogenated natural products which are important drugs. Typical substrates for FDHs include indole, pyrrole, phenolic and aliphatic compounds. In addition to organic substrates, all FDHs utilize reduced FAD (FADH-), oxygen and halides as co-substrates. Structural studies reveal that FDHs all have similar FAD binding sites. However, FDHs have variations between the different isotypes including different recognition residues for substrate binding and some unique loop structures and conformations. These different structural differences suggest that variations in reaction catalysis exist. However, limited knowledge of the reaction mechanisms of FDHs is currently available. Various biocatalytic applications of FDHs have been explored. Further investigation of the catalytic reactions of FDHs is essential for improving enzyme engineering work to enable FDHs catalysis of challenging reactions.
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Affiliation(s)
- Aisaraphon Phintha
- Department of Biochemistry and Center for Excellence in Protein and Enzyme Technology, Faculty of Science, Mahidol University, Bangkok, Thailand
| | - Kridsadakorn Prakinee
- School of Biomolecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology (VISTEC), Wangchan Valley, Rayong, Thailand
| | - Pimchai Chaiyen
- School of Biomolecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology (VISTEC), Wangchan Valley, Rayong, Thailand.
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Wittmann BJ, Knight AM, Hofstra JL, Reisman SE, Jennifer Kan SB, Arnold FH. Diversity-Oriented Enzymatic Synthesis of Cyclopropane Building Blocks. ACS Catal 2020; 10:7112-7116. [PMID: 33282460 DOI: 10.1021/acscatal.0c01888] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
While biocatalysis is increasingly incorporated into drug development pipelines, it is less commonly used in the early stages of drug discovery. By engineering a protein to produce a chiral motif with a derivatizable functional handle, biocatalysts can be used to help generate diverse building blocks for drug discovery. Here we show the engineering of two variants of Rhodothermus marinus nitric oxide dioxygenase (RmaNOD) to catalyze the formation of cis- and tran- diastereomers of a pinacolboronate-substituted cyclopropane which can be readily derivatized to generate diverse stereopure cyclopropane building blocks.
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Abstract
Pd-mediated reactions have emerged as a powerful tool for the site-selective and bioorthogonal late-stage diversification of amino acids, peptides and related compounds. Indole moieties of tryptophan derivatives are susceptible to C2 H-activation, whereas halogenated aromatic amino acids such as halophenylalanines or halotryptophans provide a broad spectrum of different functionalisations. The compatibility of transition-metal-catalysed cross-couplings with functional groups in peptides, other biologically active compounds and even proteins has been demonstrated. This Review primarily compiles the application of different cross-coupling reactions to modify halotryptophans, halotryptophan containing peptides or halogenated, biologically active compounds derived from tryptophan. Modern approaches use regio- and stereoselective biocatalytic strategies to generate halotryptophans and derivatives on a preparative scale. The combination of bio- and chemocatalysis in cascade reactions is given by the biocompatibility and bioorthogonality of Pd-mediated reactions.
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Affiliation(s)
- Hendrik Gruß
- Organische und Bioorganische ChemieFakultät für ChemieUniversität BielefeldUniversitätsstraße 2533615BielefeldGermany
| | - Norbert Sewald
- Organische und Bioorganische ChemieFakultät für ChemieUniversität BielefeldUniversitätsstraße 2533615BielefeldGermany
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Exploring the Biocatalytic Potential of Fe/α‐Ketoglutarate‐Dependent Halogenases. Chemistry 2020; 26:7336-7345. [DOI: 10.1002/chem.201905752] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Indexed: 12/18/2022]
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