1
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Knaus T, Macheroux P, Mutti FG. Fus-SMO: Kinetics, Biochemical Characterisation and In Silico Modelling of a Chimeric Styrene Monooxygenase Demonstrating Quantitative Coupling Efficiency. Chembiochem 2024; 25:e202300833. [PMID: 38306174 DOI: 10.1002/cbic.202300833] [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: 12/10/2023] [Revised: 01/31/2024] [Accepted: 02/01/2024] [Indexed: 02/03/2024]
Abstract
The styrene monooxygenase, a two-component enzymatic system for styrene epoxidation, was characterised through the study of Fus-SMO - a chimera resulting from the fusion of StyA and StyB using a flexible linker. Notably, it remains debated whether the transfer of FADH2 from StyB to StyA occurs through diffusion, channeling, or a combination of both. Fus-SMO was identified as a trimer with one bound FAD molecule. In silico modelling revealed a well-distanced arrangement (45-50 Å) facilitated by the flexible linker's loopy structure. Pre-steady-state kinetics elucidated the FADox reduction intricacies (kred=110 s-1 for bound FADox), identifying free FADox binding as the rate-determining step. The aerobic oxidation of FADH2 (kox=90 s-1) and subsequent decomposition to FADox and H2O2 demonstrated StyA's protective effect on the bound hydroperoxoflavin (kdec=0.2 s-1) compared to free cofactor (kdec=1.8 s-1). At varied styrene concentrations, kox for FADH2 ranged from 80 to 120 s-1. Studies on NADH consumption vs. styrene epoxidation revealed Fus-SMO's ability to achieve quantitative coupling efficiency in solution, surpassing natural two-component SMOs. The results suggest that Fus-SMO exhibits enhanced FADH2 channelling between subunits. This work contributes to comprehending FADH2 transfer mechanisms in SMO and illustrates how protein fusion can elevate catalytic efficiency for biocatalytic applications.
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Affiliation(s)
- Tanja Knaus
- Van 't Hoff Institute for Molecular Sciences, HIMS-Biocat, University of Amsterdam, Science Park 904, Amsterdam, 1098 XH, The Netherlands
| | - Peter Macheroux
- Institute of Biochemistry, Graz University of Technology, Petersgasse 12, 8010, Graz, Austria
| | - Francesco G Mutti
- Van 't Hoff Institute for Molecular Sciences, HIMS-Biocat, University of Amsterdam, Science Park 904, Amsterdam, 1098 XH, The Netherlands
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2
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Liu ZX, Gao YD, Yang LC. Biocatalytic Hydrogen-Borrowing Cascade in Organic Synthesis. JACS AU 2024; 4:877-892. [PMID: 38559715 PMCID: PMC10976568 DOI: 10.1021/jacsau.4c00026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 02/26/2024] [Accepted: 02/27/2024] [Indexed: 04/04/2024]
Abstract
Biocatalytic hydrogen borrowing represents an environmentally friendly and highly efficient synthetic method. This innovative approach involves converting various substrates into high-value-added products, typically via a one-pot, two/three-step sequence encompassing dehydrogenation (intermediate transformation) and hydrogenation processes employing the hydride shuffling between NAD(P)+ and NAD(P)H. Represented key transformations in hydrogen borrowing include stereoisomer conversion within alcohols, conversion between alcohols and amines, conversion of allylic alcohols to saturated carbonyl counterparts, and α,β-unsaturated aldehydes to saturated carboxylic acids, etc. The direct transformation methodology and environmentally benign characteristics of hydrogen borrowing have contributed to its advancements in fine chemical synthesis or drug developments. Over the past decades, the hydrogen borrowing strategy in biocatalysis has led to the creation of diverse catalytic systems, demonstrating substantial potential for straightforward synthesis as well as asymmetric transformations. This perspective serves as a detailed exposition of the recent advancements in biocatalytic reactions employing the hydrogen borrowing strategy. It provides insights into the potential of this approach for future development, shedding light on its promising prospects in the field of biocatalysis.
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Affiliation(s)
- Zong-Xiao Liu
- State Key Laboratory of Bioactive Substance
and Function of Natural Medicines, Institute
of Materia Medica, Chinese Academy of Medical Sciences & Peking
Union Medical College, 100050 Beijing, P. R. China
| | - Ya-Dong Gao
- State Key Laboratory of Bioactive Substance
and Function of Natural Medicines, Institute
of Materia Medica, Chinese Academy of Medical Sciences & Peking
Union Medical College, 100050 Beijing, P. R. China
| | - Li-Cheng Yang
- State Key Laboratory of Bioactive Substance
and Function of Natural Medicines, Institute
of Materia Medica, Chinese Academy of Medical Sciences & Peking
Union Medical College, 100050 Beijing, P. R. China
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3
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Grandi E, Feyza Özgen F, Schmidt S, Poelarends GJ. Enzymatic Oxy- and Amino-Functionalization in Biocatalytic Cascade Synthesis: Recent Advances and Future Perspectives. Angew Chem Int Ed Engl 2023; 62:e202309012. [PMID: 37639631 DOI: 10.1002/anie.202309012] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 08/27/2023] [Accepted: 08/28/2023] [Indexed: 08/31/2023]
Abstract
Biocatalytic cascades are a powerful tool for building complex molecules containing oxygen and nitrogen functionalities. Moreover, the combination of multiple enzymes in one pot offers the possibility to minimize downstream processing and waste production. In this review, we illustrate various recent efforts in the development of multi-step syntheses involving C-O and C-N bond-forming enzymes to produce high value-added compounds, such as pharmaceuticals and polymer precursors. Both in vitro and in vivo examples are discussed, revealing the respective advantages and drawbacks. The use of engineered enzymes to boost the cascades outcome is also addressed and current co-substrate and cofactor recycling strategies are presented, highlighting the importance of atom economy. Finally, tools to overcome current challenges for multi-enzymatic oxy- and amino-functionalization reactions are discussed, including flow systems with immobilized biocatalysts and cascades in confined nanomaterials.
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Affiliation(s)
- Eleonora Grandi
- Department of Chemical and Pharmaceutical Biology, University of Groningen, Antonius Deusinglaan 1, 9713 AV, Groningen, The Netherlands
| | - Fatma Feyza Özgen
- Department of Chemical and Pharmaceutical Biology, University of Groningen, Antonius Deusinglaan 1, 9713 AV, Groningen, The Netherlands
| | - Sandy Schmidt
- Department of Chemical and Pharmaceutical Biology, University of Groningen, Antonius Deusinglaan 1, 9713 AV, Groningen, The Netherlands
| | - Gerrit J Poelarends
- Department of Chemical and Pharmaceutical Biology, University of Groningen, Antonius Deusinglaan 1, 9713 AV, Groningen, The Netherlands
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4
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Knaus T, Corrado ML, Mutti FG. One-Pot Biocatalytic Synthesis of Primary, Secondary, and Tertiary Amines with Two Stereocenters from α,β-Unsaturated Ketones Using Alkyl-Ammonium Formate. ACS Catal 2022; 12:14459-14475. [PMID: 36504913 PMCID: PMC9724091 DOI: 10.1021/acscatal.2c03052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Revised: 10/20/2022] [Indexed: 11/11/2022]
Abstract
The efficient asymmetric catalytic synthesis of amines containing more than one stereogenic center is a current challenge. Here, we present a biocatalytic cascade that combines ene-reductases (EReds) with imine reductases/reductive aminases (IReds/RedAms) to enable the conversion of α,β-unsaturated ketones into primary, secondary, and tertiary amines containing two stereogenic centers in very high chemical purity (up to >99%), a diastereomeric ratio, and an enantiomeric ratio (up to >99.8:<0.2). Compared with previously reported strategies, our strategy could synthesize two, three, or even all four of the possible stereoisomers of the amine products while precluding the formation of side-products. Furthermore, ammonium or alkylammonium formate buffer could be used as the only additional reagent since it acted both as an amine donor and as a source of reducing equivalents. This was achieved through the implementation of an NADP-dependent formate dehydrogenase (FDH) for the in situ recycling of the NADPH coenzyme, thus leading to increased atom economy for this biocatalytic transformation. Finally, this dual-enzyme ERed/IRed cascade also exhibits a complementarity with the recently reported EneIRED enzymes for the synthesis of cyclic six-membered ring amines. The ERed/IRed method yielded trans-1,2 and cis-1,3 substituted cyclohexylamines in high optical purities, whereas the EneIRED method was reported to yield one cis-1,2 and one trans-1,3 enantiomer. As a proof of concept, when 3-methylcyclohex-2-en-1-one was converted into secondary and tertiary chiral amines with different amine donors, we could obtain all the four possible stereoisomer products. This result exemplifies the versatility of this method and its potential for future wider utilization in asymmetric synthesis by expanding the toolbox of currently available dehydrogenases via enzyme engineering and discovery.
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5
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Lv JX, Ding YQ, Huang CM, Guo LL, Fang JL, Jia X, Zhang WH, You S, Qin B. Enzyme- and Chemo-enzyme-Catalyzed Stereodivergent Synthesis. PHARMACEUTICAL FRONTS 2022. [DOI: 10.1055/s-0042-1755556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022] Open
Abstract
Multiple stereoisomers can be found when a substance contains chiral carbons in its chemical structure. To obtain the desired stereoisomers, asymmetric synthesis was proposed in the 1970s and developed rapidly at the beginning of this century. Stereodivergent synthesis, an extension of asymmetric synthesis in organic synthesis with the hope to produce all stereoisomers of chiral substances in high conversion and selectivity, enriches the variety of available products and serves as a reference suggestion for the synthesis of their derivatives and other compounds. Since biocatalysis has outstanding advantages of economy, environmental friendliness, high efficiency, and reaction at mild conditions, the biocatalytic reaction is regarded as an efficient strategy to perform stereodivergent synthesis. Thus, in this review, we summarize the stereodivergent synthesis catalyzed by enzymes or chemo-enzymes in cases where a compound contains two or three chiral carbons, i.e., at most four or eight stereoisomers are present. The types of reactions, including reduction of substituent ketones, cyclization reactions, olefin addition, and nonredox transesterification reactions, are also discussed for the understanding of the progress and application of biocatalysis in stereodivergent synthesis.
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Affiliation(s)
- Jia-Xiang Lv
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, People's Republic of China
| | - Ya-Qi Ding
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, People's Republic of China
| | - Chen-Ming Huang
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, People's Republic of China
| | - Ling-Ling Guo
- Microbial Research Institute of Liaoning Province, Liaoyang, People's Republic of China
| | - Jia-Li Fang
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, People's Republic of China
| | - Xian Jia
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang, People's Republic of China
| | - Wen-He Zhang
- School of Life Sciences and Biopharmaceutical Sciences, Shenyang Pharmaceutical University, Shenyang, People's Republic of China
| | - Song You
- School of Life Sciences and Biopharmaceutical Sciences, Shenyang Pharmaceutical University, Shenyang, People's Republic of China
| | - Bin Qin
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, People's Republic of China
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6
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Corrado ML, Knaus T, Schwaneberg U, Mutti FG. High-Yield Synthesis of Enantiopure 1,2-Amino Alcohols from l-Phenylalanine via Linear and Divergent Enzymatic Cascades. Org Process Res Dev 2022; 26:2085-2095. [PMID: 35873603 PMCID: PMC9295148 DOI: 10.1021/acs.oprd.1c00490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
![]()
Enantiomerically
pure 1,2-amino alcohols are important compounds
due to their biological activities and wide applications in chemical
synthesis. In this work, we present two multienzyme pathways for the
conversion of l-phenylalanine into either 2-phenylglycinol
or phenylethanolamine in the enantiomerically pure form. Both pathways
start with the two-pot sequential four-step conversion of l-phenylalanine into styrene via subsequent deamination, decarboxylation,
enantioselective epoxidation, and enantioselective hydrolysis. For
instance, after optimization, the multienzyme process could convert
507 mg of l-phenylalanine into (R)-1-phenyl-1,2-diol
in an overall isolated yield of 75% and >99% ee. The opposite enantiomer,
(S)-1-phenyl-1,2-diol, was also obtained in a 70%
yield and 98–99% ee following the same approach. At this stage,
two divergent routes were developed to convert the chiral diols into
either 2-phenylglycinol or phenylethanolamine. The former route consisted
of a one-pot concurrent interconnected two-step cascade in which the
diol intermediate was oxidized to 2-hydroxy-acetophenone by an alcohol
dehydrogenase and then aminated by a transaminase to give enantiomerically
pure 2-phenylglycinol. Notably, the addition of an alanine dehydrogenase
enabled the connection of the two steps and made the overall process
redox-self-sufficient. Thus, (S)-phenylglycinol was
isolated in an 81% yield and >99.4% ee starting from ca. 100 mg
of
the diol intermediate. The second route consisted of a one-pot concurrent
two-step cascade in which the oxidative and reductive steps were not
interconnected. In this case, the diol intermediate was oxidized to
either (S)- or (R)-2-hydroxy-2-phenylacetaldehyde
by an alcohol oxidase and then aminated by an amine dehydrogenase
to give the enantiomerically pure phenylethanolamine. The addition
of a formate dehydrogenase and sodium formate was required to provide
the reducing equivalents for the reductive amination step. Thus, (R)-phenylethanolamine was isolated in a 92% yield and >99.9%
ee starting from ca. 100 mg of the diol intermediate. In summary, l-phenylalanine was converted into enantiomerically pure 2-phenylglycinol
and phenylethanolamine in overall yields of 61% and 69%, respectively.
This work exemplifies how linear and divergent enzyme cascades can
enable the synthesis of high-value chiral molecules such as amino
alcohols from a renewable material such as l-phenylalanine
with high atom economy and improved sustainability.
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Affiliation(s)
- Maria L. Corrado
- Van’t Hoff Institute for Molecular Sciences, HIMS-Biocat, University of Amsterdam, Science Park 904, Amsterdam 1098 XH, The Netherlands
| | - Tanja Knaus
- Van’t Hoff Institute for Molecular Sciences, HIMS-Biocat, University of Amsterdam, Science Park 904, Amsterdam 1098 XH, The Netherlands
| | - Ulrich Schwaneberg
- Institute of Biotechnology, RWTH Aachen University, Worringerweg 3, Aachen 52074, Germany
| | - Francesco G. Mutti
- Van’t Hoff Institute for Molecular Sciences, HIMS-Biocat, University of Amsterdam, Science Park 904, Amsterdam 1098 XH, The Netherlands
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7
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Wang DH, Chen Q, Yin SN, Ding XW, Zheng YC, Zhang Z, Zhang YH, Chen FF, Xu JH, Zheng GW. Asymmetric Reductive Amination of Structurally Diverse Ketones with Ammonia Using a Spectrum-Extended Amine Dehydrogenase. ACS Catal 2021. [DOI: 10.1021/acscatal.1c04324] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Dong-Hao Wang
- State Key Laboratory of Bioreactor Engineering, Shanghai Collaborative Innovation Center for Biomanufacturing, East China University of Science and Technology, Shanghai 200237, People’s Republic of China
| | - Qi Chen
- State Key Laboratory of Bioreactor Engineering, Shanghai Collaborative Innovation Center for Biomanufacturing, East China University of Science and Technology, Shanghai 200237, People’s Republic of China
| | - Sai-Nan Yin
- State Key Laboratory of Bioreactor Engineering, Shanghai Collaborative Innovation Center for Biomanufacturing, East China University of Science and Technology, Shanghai 200237, People’s Republic of China
| | - Xu-Wei Ding
- State Key Laboratory of Bioreactor Engineering, Shanghai Collaborative Innovation Center for Biomanufacturing, East China University of Science and Technology, Shanghai 200237, People’s Republic of China
| | - Yu-Cong Zheng
- State Key Laboratory of Bioreactor Engineering, Shanghai Collaborative Innovation Center for Biomanufacturing, East China University of Science and Technology, Shanghai 200237, People’s Republic of China
| | - Zhi Zhang
- State Key Laboratory of Bioreactor Engineering, Shanghai Collaborative Innovation Center for Biomanufacturing, East China University of Science and Technology, Shanghai 200237, People’s Republic of China
| | - Yu-Hui Zhang
- State Key Laboratory of Bioreactor Engineering, Shanghai Collaborative Innovation Center for Biomanufacturing, East China University of Science and Technology, Shanghai 200237, People’s Republic of China
| | - Fei-Fei Chen
- State Key Laboratory of Bioreactor Engineering, Shanghai Collaborative Innovation Center for Biomanufacturing, East China University of Science and Technology, Shanghai 200237, People’s Republic of China
| | - Jian-He Xu
- State Key Laboratory of Bioreactor Engineering, Shanghai Collaborative Innovation Center for Biomanufacturing, East China University of Science and Technology, Shanghai 200237, People’s Republic of China
- Frontiers Science Center for Materiobiology and Dynamic Chemistry, East China University of Science and Technology, Shanghai 200237, People’s Republic of China
| | - Gao-Wei Zheng
- State Key Laboratory of Bioreactor Engineering, Shanghai Collaborative Innovation Center for Biomanufacturing, East China University of Science and Technology, Shanghai 200237, People’s Republic of China
- Frontiers Science Center for Materiobiology and Dynamic Chemistry, East China University of Science and Technology, Shanghai 200237, People’s Republic of China
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8
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Wu JF, Wan NW, Li YN, Wang QP, Cui BD, Han WY, Chen YZ. Regiodivergent and stereoselective hydroxyazidation of alkenes by biocatalytic cascades. iScience 2021; 24:102883. [PMID: 34401667 PMCID: PMC8353479 DOI: 10.1016/j.isci.2021.102883] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 06/02/2021] [Accepted: 07/14/2021] [Indexed: 12/30/2022] Open
Abstract
Asymmetric functionalization of alkenes allows the direct synthesis of a wide range of chiral compounds. Vicinal hydroxyazidation of alkenes provides a desirable path to 1,2-azidoalcohols; however, existing methods are limited by the control of stereoselectivity and regioselectivity. Herein, we describe a dual-enzyme cascade strategy for regiodivergent and stereoselective hydroxyazidation of alkenes, affording various enantiomerically pure 1,2-azidoalcohols. The biocatalytic cascade process is designed by combining styrene monooxygenase-catalyzed asymmetric epoxidation of alkenes and halohydrin dehalogenase-catalyzed regioselective ring opening of epoxides with azide. Additionally, a one-pot chemo-enzymatic route to chiral β-hydroxytriazoles from alkenes is developed via combining the biocatalytic cascades and Cu-catalyzed azide-alkyne cycloaddition.
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Affiliation(s)
- Jing-Fei Wu
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, Generic Drug Research Center of Guizhou Province, Green Pharmaceuticals Engineering Research Center of Guizhou Province, School of Pharmacy, Zunyi Medical University, Zunyi, 563000, China
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, , Zunyi, 563000, China
| | - Nan-Wei Wan
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, Generic Drug Research Center of Guizhou Province, Green Pharmaceuticals Engineering Research Center of Guizhou Province, School of Pharmacy, Zunyi Medical University, Zunyi, 563000, China
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, , Zunyi, 563000, China
| | - Ying-Na Li
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, Generic Drug Research Center of Guizhou Province, Green Pharmaceuticals Engineering Research Center of Guizhou Province, School of Pharmacy, Zunyi Medical University, Zunyi, 563000, China
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, , Zunyi, 563000, China
| | - Qing-Ping Wang
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, Generic Drug Research Center of Guizhou Province, Green Pharmaceuticals Engineering Research Center of Guizhou Province, School of Pharmacy, Zunyi Medical University, Zunyi, 563000, China
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, , Zunyi, 563000, China
| | - Bao-Dong Cui
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, Generic Drug Research Center of Guizhou Province, Green Pharmaceuticals Engineering Research Center of Guizhou Province, School of Pharmacy, Zunyi Medical University, Zunyi, 563000, China
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, , Zunyi, 563000, China
| | - Wen-Yong Han
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, Generic Drug Research Center of Guizhou Province, Green Pharmaceuticals Engineering Research Center of Guizhou Province, School of Pharmacy, Zunyi Medical University, Zunyi, 563000, China
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, , Zunyi, 563000, China
| | - Yong-Zheng Chen
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, Generic Drug Research Center of Guizhou Province, Green Pharmaceuticals Engineering Research Center of Guizhou Province, School of Pharmacy, Zunyi Medical University, Zunyi, 563000, China
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, , Zunyi, 563000, China
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9
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Cigan E, Eggbauer B, Schrittwieser JH, Kroutil W. The role of biocatalysis in the asymmetric synthesis of alkaloids - an update. RSC Adv 2021; 11:28223-28270. [PMID: 35480754 PMCID: PMC9038100 DOI: 10.1039/d1ra04181a] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2021] [Accepted: 07/30/2021] [Indexed: 12/19/2022] Open
Abstract
Alkaloids are a group of natural products with interesting pharmacological properties and a long history of medicinal application. Their complex molecular structures have fascinated chemists for decades, and their total synthesis still poses a considerable challenge. In a previous review, we have illustrated how biocatalysis can make valuable contributions to the asymmetric synthesis of alkaloids. The chemo-enzymatic strategies discussed therein have been further explored and improved in recent years, and advances in amine biocatalysis have vastly expanded the opportunities for incorporating enzymes into synthetic routes towards these important natural products. The present review summarises modern developments in chemo-enzymatic alkaloid synthesis since 2013, in which the biocatalytic transformations continue to take an increasingly 'central' role.
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Affiliation(s)
- Emmanuel Cigan
- Institute of Chemistry, University of Graz, NAWI Graz, BioTechMed Graz, BioHealth Heinrichstrasse 28/II 8010 Graz Austria
| | - Bettina Eggbauer
- Institute of Chemistry, University of Graz, NAWI Graz, BioTechMed Graz, BioHealth Heinrichstrasse 28/II 8010 Graz Austria
| | - Joerg H Schrittwieser
- Institute of Chemistry, University of Graz, NAWI Graz, BioTechMed Graz, BioHealth Heinrichstrasse 28/II 8010 Graz Austria
| | - Wolfgang Kroutil
- Institute of Chemistry, University of Graz, NAWI Graz, BioTechMed Graz, BioHealth Heinrichstrasse 28/II 8010 Graz Austria
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10
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Martínez-Montero L, Tischler D, Süss P, Schallmey A, Franssen MCR, Hollmann F, Paul CE. Asymmetric azidohydroxylation of styrene derivatives mediated by a biomimetic styrene monooxygenase enzymatic cascade. Catal Sci Technol 2021; 11:5077-5085. [PMID: 34381590 PMCID: PMC8328376 DOI: 10.1039/d1cy00855b] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Accepted: 06/13/2021] [Indexed: 12/18/2022]
Abstract
Enantioenriched azido alcohols are precursors for valuable chiral aziridines and 1,2-amino alcohols, however their chiral substituted analogues are difficult to access. We established a cascade for the asymmetric azidohydroxylation of styrene derivatives leading to chiral substituted 1,2-azido alcohols via enzymatic asymmetric epoxidation, followed by regioselective azidolysis, affording the azido alcohols with up to two contiguous stereogenic centers. A newly isolated two-component flavoprotein styrene monooxygenase StyA proved to be highly selective for epoxidation with a nicotinamide coenzyme biomimetic as a practical reductant. Coupled with azide as a nucleophile for regioselective ring opening, this chemo-enzymatic cascade produced highly enantioenriched aromatic α-azido alcohols with up to >99% conversion. A bi-enzymatic counterpart with halohydrin dehalogenase-catalyzed azidolysis afforded the alternative β-azido alcohol isomers with up to 94% diastereomeric excess. We anticipate our biocatalytic cascade to be a starting point for more practical production of these chiral compounds with two-component flavoprotein monooxygenases.
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Affiliation(s)
- Lía Martínez-Montero
- Department of Biotechnology, Delft University of Technology Van der Maasweg 9 2629 HZ Delft The Netherlands
| | - Dirk Tischler
- Microbial Biotechnology, Ruhr-Universität Bochum Universitätsstr. 150 44780 Bochum Germany
| | - Philipp Süss
- Enzymicals AG Walther-Rathenau-Straße 49a 17489 Greifswald Germany
| | - Anett Schallmey
- Institute for Biochemistry, Biotechnology and Bioinformatics, Technische Universität Braunschweig Spielmannstraße 7 38106 Braunschweig Germany
| | - Maurice C R Franssen
- Laboratory of Organic Chemistry, Wageningen University Stippeneng 4 6708 WE Wageningen The Netherlands
| | - Frank Hollmann
- Department of Biotechnology, Delft University of Technology Van der Maasweg 9 2629 HZ Delft The Netherlands
| | - Caroline E Paul
- Department of Biotechnology, Delft University of Technology Van der Maasweg 9 2629 HZ Delft The Netherlands
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11
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Zhou X, Wan N, Li Y, Ma R, Cui B, Han W, Chen Y. Stereoselective Synthesis of Enantiopure Oxazolidinones via Biocatalytic Asymmetric Aminohydroxylation of Alkenes. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100468] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Xiao‐Ying Zhou
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province Generic Drug Research Center of Guizhou Province Green Pharmaceuticals Engineering Research Center of Guizhou Province School of Pharmacy Zunyi Medical University 563000 Zunyi People's Republic of China
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education Zunyi Medical University 563000 Zunyi People's Republic of China
| | - Nan‐Wei Wan
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province Generic Drug Research Center of Guizhou Province Green Pharmaceuticals Engineering Research Center of Guizhou Province School of Pharmacy Zunyi Medical University 563000 Zunyi People's Republic of China
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education Zunyi Medical University 563000 Zunyi People's Republic of China
| | - Ying‐Na Li
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province Generic Drug Research Center of Guizhou Province Green Pharmaceuticals Engineering Research Center of Guizhou Province School of Pharmacy Zunyi Medical University 563000 Zunyi People's Republic of China
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education Zunyi Medical University 563000 Zunyi People's Republic of China
| | - Ran Ma
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province Generic Drug Research Center of Guizhou Province Green Pharmaceuticals Engineering Research Center of Guizhou Province School of Pharmacy Zunyi Medical University 563000 Zunyi People's Republic of China
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education Zunyi Medical University 563000 Zunyi People's Republic of China
| | - Bao‐Dong Cui
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province Generic Drug Research Center of Guizhou Province Green Pharmaceuticals Engineering Research Center of Guizhou Province School of Pharmacy Zunyi Medical University 563000 Zunyi People's Republic of China
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education Zunyi Medical University 563000 Zunyi People's Republic of China
| | - Wen‐Yong Han
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province Generic Drug Research Center of Guizhou Province Green Pharmaceuticals Engineering Research Center of Guizhou Province School of Pharmacy Zunyi Medical University 563000 Zunyi People's Republic of China
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education Zunyi Medical University 563000 Zunyi People's Republic of China
| | - Yong‐Zheng Chen
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province Generic Drug Research Center of Guizhou Province Green Pharmaceuticals Engineering Research Center of Guizhou Province School of Pharmacy Zunyi Medical University 563000 Zunyi People's Republic of China
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education Zunyi Medical University 563000 Zunyi People's Republic of China
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12
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Corrado ML, Knaus T, Mutti FG. High Regio- and Stereoselective Multi-enzymatic Synthesis of All Phenylpropanolamine Stereoisomers from β-Methylstyrene. Chembiochem 2021; 22:2345-2350. [PMID: 33880862 PMCID: PMC8359840 DOI: 10.1002/cbic.202100123] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 04/20/2021] [Indexed: 12/16/2022]
Abstract
We present a one‐pot cascade for the synthesis of phenylpropanolamines (PPAs) in high optical purities (er and dr up to >99.5 %) and analytical yields (up to 95 %) by using 1‐phenylpropane‐1,2‐diols as key intermediates. This bioamination entails the combination of an alcohol dehydrogenase (ADH), an ω‐transaminase (ωTA) and an alanine dehydrogenase to create a redox‐neutral network, which harnesses the exquisite and complementary regio‐ and stereo‐selectivities of the selected ADHs and ωTAs. The requisite 1‐phenylpropane‐1,2‐diol intermediates were obtained from trans‐ or cis‐β‐methylstyrene by combining a styrene monooxygenase with epoxide hydrolases. Furthermore, in selected cases, the envisioned cascade enabled to obtain the structural isomer (1S,2R)‐1‐amino‐1‐phenylpropan‐2‐ol in high optical purity (er and dr >99.5 %). This is the first report on an enzymatic method that enables to obtain all of the four possible PPA stereoisomers in great enantio‐ and diastereo‐selectivity.
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Affiliation(s)
- Maria L Corrado
- Van't Hoff Institute for Molecular Sciences, HIMS-Biocat, University of Amsterdam, Science Park 904, 1098 XH, Amsterdam, The Netherlands
| | - Tanja Knaus
- Van't Hoff Institute for Molecular Sciences, HIMS-Biocat, University of Amsterdam, Science Park 904, 1098 XH, Amsterdam, The Netherlands
| | - Francesco G Mutti
- Van't Hoff Institute for Molecular Sciences, HIMS-Biocat, University of Amsterdam, Science Park 904, 1098 XH, Amsterdam, The Netherlands
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13
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Gandomkar S, Rocha R, Sorgenfrei FA, Montero LM, Fuchs M, Kroutil W. PQQ-dependent Dehydrogenase Enables One-pot Bi-enzymatic Enantio-convergent Biocatalytic Amination of Racemic sec-Allylic Alcohols. ChemCatChem 2021; 13:1290-1293. [PMID: 33777250 PMCID: PMC7986696 DOI: 10.1002/cctc.202001707] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 11/20/2020] [Indexed: 12/28/2022]
Abstract
The asymmetric amination of secondary racemic allylic alcohols bears several challenges like the reactivity of the bi-functional substrate/product as well as of the α,β-unsaturated ketone intermediate in an oxidation-reductive amination sequence. Heading for a biocatalytic amination cascade with a minimal number of enzymes, an oxidation step was implemented relying on a single PQQ-dependent dehydrogenase with low enantioselectivity. This enzyme allowed the oxidation of both enantiomers at the expense of iron(III) as oxidant. The stereoselective amination of the α,β-unsaturated ketone intermediate was achieved with transaminases using 1-phenylethylamine as formal reducing agent as well as nitrogen source. Choosing an appropriate transaminase, either the (R)- or (S)-enantiomer was obtained in optically pure form (>98 % ee). The enantio-convergent amination of the racemic allylic alcohols to one single allylic amine enantiomer was achieved in one pot in a sequential cascade.
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Affiliation(s)
| | - Raquel Rocha
- Institute of ChemistryUniversity of Graz, NAWI Graz8010GrazAustria
| | - Frieda A. Sorgenfrei
- Institute of ChemistryUniversity of Graz, NAWI Graz8010GrazAustria
- Austrian Centre of Industrial Biotechnology c/oUniversity of Graz8010GrazAustria
| | | | - Michael Fuchs
- Institute of ChemistryUniversity of Graz, NAWI Graz8010GrazAustria
| | - Wolfgang Kroutil
- Institute of ChemistryUniversity of Graz, NAWI Graz8010GrazAustria
- Field of Excellence BioHealthUniversity of Graz8010GrazAustria
- BioTechMed Graz8010GrazAustria
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14
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Tseliou V, Schilder D, Masman MF, Knaus T, Mutti FG. Generation of Oxidoreductases with Dual Alcohol Dehydrogenase and Amine Dehydrogenase Activity. Chemistry 2021; 27:3315-3325. [PMID: 33073866 PMCID: PMC7898336 DOI: 10.1002/chem.202003140] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 10/17/2020] [Indexed: 11/12/2022]
Abstract
The l-lysine-ϵ-dehydrogenase (LysEDH) from Geobacillus stearothermophilus naturally catalyzes the oxidative deamination of the ϵ-amino group of l-lysine. We previously engineered this enzyme to create amine dehydrogenase (AmDH) variants that possess a new hydrophobic cavity in their active site such that aromatic ketones can bind and be converted into α-chiral amines with excellent enantioselectivity. We also recently observed that LysEDH was capable of reducing aromatic aldehydes into primary alcohols. Herein, we harnessed the promiscuous alcohol dehydrogenase (ADH) activity of LysEDH to create new variants that exhibited enhanced catalytic activity for the reduction of substituted benzaldehydes and arylaliphatic aldehydes to primary alcohols. Notably, these novel engineered dehydrogenases also catalyzed the reductive amination of a variety of aldehydes and ketones with excellent enantioselectivity, thus exhibiting a dual AmDH/ADH activity. We envisioned that the catalytic bi-functionality of these enzymes could be applied for the direct conversion of alcohols into amines. As a proof-of-principle, we performed an unprecedented one-pot "hydrogen-borrowing" cascade to convert benzyl alcohol to benzylamine using a single enzyme. Conducting the same biocatalytic cascade in the presence of cofactor recycling enzymes (i.e., NADH-oxidase and formate dehydrogenase) increased the reaction yields. In summary, this work provides the first examples of enzymes showing "alcohol aminase" activity.
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Affiliation(s)
- Vasilis Tseliou
- Van't Hoff Institute for Molecular Sciences, HIMS-BiocatUniversity of AmsterdamScience Park 9041098 XHAmsterdamThe Netherlands
| | - Don Schilder
- Van't Hoff Institute for Molecular Sciences, HIMS-BiocatUniversity of AmsterdamScience Park 9041098 XHAmsterdamThe Netherlands
| | - Marcelo F. Masman
- Van't Hoff Institute for Molecular Sciences, HIMS-BiocatUniversity of AmsterdamScience Park 9041098 XHAmsterdamThe Netherlands
| | - Tanja Knaus
- Van't Hoff Institute for Molecular Sciences, HIMS-BiocatUniversity of AmsterdamScience Park 9041098 XHAmsterdamThe Netherlands
| | - Francesco G. Mutti
- Van't Hoff Institute for Molecular Sciences, HIMS-BiocatUniversity of AmsterdamScience Park 9041098 XHAmsterdamThe Netherlands
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15
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Paul CE, Eggerichs D, Westphal AH, Tischler D, van Berkel WJH. Flavoprotein monooxygenases: Versatile biocatalysts. Biotechnol Adv 2021; 51:107712. [PMID: 33588053 DOI: 10.1016/j.biotechadv.2021.107712] [Citation(s) in RCA: 65] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 01/27/2021] [Accepted: 02/06/2021] [Indexed: 12/13/2022]
Abstract
Flavoprotein monooxygenases (FPMOs) are single- or two-component enzymes that catalyze a diverse set of chemo-, regio- and enantioselective oxyfunctionalization reactions. In this review, we describe how FPMOs have evolved from model enzymes in mechanistic flavoprotein research to biotechnologically relevant catalysts that can be applied for the sustainable production of valuable chemicals. After a historical account of the development of the FPMO field, we explain the FPMO classification system, which is primarily based on protein structural properties and electron donor specificities. We then summarize the most appealing reactions catalyzed by each group with a focus on the different types of oxygenation chemistries. Wherever relevant, we report engineering strategies that have been used to improve the robustness and applicability of FPMOs.
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Affiliation(s)
- Caroline E Paul
- Biocatalysis, Department of Biotechnology, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, The Netherlands
| | - Daniel Eggerichs
- Microbial Biotechnology, Faculty of Biology and Biotechnology, Ruhr-Universität Bochum, Universitätsstrasse 150, 44780 Bochum, Germany
| | - Adrie H Westphal
- Laboratory of Biochemistry, Wageningen University, Stippeneng 4, 6708 WE Wageningen, The Netherlands
| | - Dirk Tischler
- Microbial Biotechnology, Faculty of Biology and Biotechnology, Ruhr-Universität Bochum, Universitätsstrasse 150, 44780 Bochum, Germany
| | - Willem J H van Berkel
- Laboratory of Food Chemistry, Wageningen University, Bornse Weilanden 9, 6708 WG Wageningen, The Netherlands.
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16
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Finnigan W, Hepworth LJ, Flitsch SL, Turner NJ. RetroBioCat as a computer-aided synthesis planning tool for biocatalytic reactions and cascades. Nat Catal 2021; 4:98-104. [PMID: 33604511 PMCID: PMC7116764 DOI: 10.1038/s41929-020-00556-z] [Citation(s) in RCA: 87] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
As the enzyme toolbox for biocatalysis has expanded, so has the potential for the construction of powerful enzymatic cascades for efficient and selective synthesis of target molecules. Additionally, recent advances in computer-aided synthesis planning are revolutionising synthesis design in both synthetic biology and organic chemistry. However, the potential for biocatalysis is not well captured by tools currently available in either field. Here we present RetroBioCat, an intuitive and accessible tool for computer-aided design of biocatalytic cascades, freely available at retrobiocat.com. Our approach uses a set of expertly encoded reaction rules encompassing the enzyme toolbox for biocatalysis, and a system for identifying literature precedent for enzymes with the correct substrate specificity where this is available. Applying these rules for automated biocatalytic retrosynthesis, we show our tool to be capable of identifying promising biocatalytic pathways to target molecules, validated using a test-set of recent cascades described in the literature.
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Affiliation(s)
- William Finnigan
- Department of Chemistry, University of Manchester, Manchester Institute of Biotechnology, 131 Princess Street, M1 7DN, Manchester, UK
| | - Lorna J Hepworth
- Department of Chemistry, University of Manchester, Manchester Institute of Biotechnology, 131 Princess Street, M1 7DN, Manchester, UK
| | - Sabine L Flitsch
- Department of Chemistry, University of Manchester, Manchester Institute of Biotechnology, 131 Princess Street, M1 7DN, Manchester, UK
| | - Nicholas J Turner
- Department of Chemistry, University of Manchester, Manchester Institute of Biotechnology, 131 Princess Street, M1 7DN, Manchester, UK
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17
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Zhang JD, Chang YW, Dong R, Yang XX, Gao LL, Li J, Huang SP, Guo XM, Zhang CF, Chang HH. Enantioselective Cascade Biocatalysis for Deracemization of Racemic β-Amino Alcohols to Enantiopure (S)-β-Amino Alcohols by Employing Cyclohexylamine Oxidase and ω-Transaminase. Chembiochem 2020; 22:124-128. [PMID: 32789939 DOI: 10.1002/cbic.202000491] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 08/11/2020] [Indexed: 12/28/2022]
Abstract
Optically active β-amino alcohols are very useful chiral intermediates frequently used in the preparation of pharmaceutically active substances. Here, a novel cyclohexylamine oxidase (ArCHAO) was identified from the genome sequence of Arthrobacter sp. TYUT010-15 with the R-stereoselective deamination activity of β-amino alcohol. ArCHAO was cloned and successfully expressed in E. coli BL21, purified and characterized. Substrate-specific analysis revealed that ArCHAO has high activity (4.15 to 6.34 U mg-1 protein) and excellent enantioselectivity toward the tested β-amino alcohols. By using purified ArCHAO, a wide range of racemic β-amino alcohols were resolved, (S)-β-amino alcohols were obtained in >99 % ee. Deracemization of racemic β-amino alcohols was conducted by ArCHAO-catalyzed enantioselective deamination and transaminase-catalyzed enantioselective amination to afford (S)-β-amino alcohols in excellent conversion (78-94 %) and enantiomeric excess (>99 %). Preparative-scale deracemization was carried out with 50 mM (6.859 g L-1 ) racemic 2-amino-2-phenylethanol, (S)-2-amino-2-phenylethanol was obtained in 75 % isolated yield and >99 % ee.
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Affiliation(s)
- Jian-Dong Zhang
- Department of Biological and Pharmaceutical Engineering College of Biomedical Engineering, Taiyuan University of Technology, 79 West Yingze Street, Taiyuan, 030024, Shanxi, P. R. China
| | - Ya-Wen Chang
- Department of Environmental Engineering, Taiyuan University of Technology, 79 West Yingze Street, Taiyuan, 030024, Shanxi, China
| | - Rui Dong
- Department of Biological and Pharmaceutical Engineering College of Biomedical Engineering, Taiyuan University of Technology, 79 West Yingze Street, Taiyuan, 030024, Shanxi, P. R. China
| | - Xiao-Xiao Yang
- Department of Biological and Pharmaceutical Engineering College of Biomedical Engineering, Taiyuan University of Technology, 79 West Yingze Street, Taiyuan, 030024, Shanxi, P. R. China
| | - Li-Li Gao
- Department of Environmental Engineering, Taiyuan University of Technology, 79 West Yingze Street, Taiyuan, 030024, Shanxi, China
| | - Jing Li
- Department of Biological and Pharmaceutical Engineering College of Biomedical Engineering, Taiyuan University of Technology, 79 West Yingze Street, Taiyuan, 030024, Shanxi, P. R. China
| | - Shuang-Ping Huang
- Department of Biological and Pharmaceutical Engineering College of Biomedical Engineering, Taiyuan University of Technology, 79 West Yingze Street, Taiyuan, 030024, Shanxi, P. R. China
| | - Xing-Mei Guo
- Department of Environmental Engineering, Taiyuan University of Technology, 79 West Yingze Street, Taiyuan, 030024, Shanxi, China
| | - Chao-Feng Zhang
- Department of Biological and Pharmaceutical Engineering College of Biomedical Engineering, Taiyuan University of Technology, 79 West Yingze Street, Taiyuan, 030024, Shanxi, P. R. China
| | - Hong-Hong Chang
- Department of Biological and Pharmaceutical Engineering College of Biomedical Engineering, Taiyuan University of Technology, 79 West Yingze Street, Taiyuan, 030024, Shanxi, P. R. China
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18
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Xue J, Bai LG, Zhang L, Zhou Y, Lin XL, Mou NJ, Xiao DR, Luo QL. One-Pot Synthesis of 2,4-Diacyl Thiophenes from α-Oxo Ketene Dithioacetals and Propargylic Alcohols. J Org Chem 2020; 85:9761-9775. [DOI: 10.1021/acs.joc.0c01093] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Jian Xue
- College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Li-Gang Bai
- College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Liang Zhang
- College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Yue Zhou
- College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Xiao-Long Lin
- College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Neng-Jie Mou
- College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Dong-Rong Xiao
- College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Qun-Li Luo
- College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
- Key Laboratory of Applied Chemistry of Chongqing Municipality, Southwest University, Chongqing 400715, China
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19
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Azofra LM, Tran MA, Zubar V, Cavallo L, Rueping M, El-Sepelgy O. Conversion of racemic alcohols to optically pure amine precursors enabled by catalyst dynamic kinetic resolution: experiment and computation. Chem Commun (Camb) 2020; 56:9094-9097. [DOI: 10.1039/d0cc02881a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An unprecedented base metal catalysed asymmetric synthesis of α-chiral amine precursors from racemic alcohols is reported.
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Affiliation(s)
- Luis Miguel Azofra
- Instituto de Estudios Ambientales y Recursos Naturales (i-UNAT)
- Universidad de Las Palmas de Gran Canaria (ULPGC)
- Campus de Tafira
- Las Palmas de Gran Canaria
- Spain
| | - Mai Anh Tran
- Institute of Organic Chemistry
- RWTH Aachen University
- 52074 Aachen
- Germany
| | - Viktoriia Zubar
- Institute of Organic Chemistry
- RWTH Aachen University
- 52074 Aachen
- Germany
| | - Luigi Cavallo
- KAUST Catalysis Center (KCC)
- King Abdullah University of Science and Technology (KAUST)
- Thuwal 23955-6900
- Saudi Arabia
| | - Magnus Rueping
- Institute of Organic Chemistry
- RWTH Aachen University
- 52074 Aachen
- Germany
- KAUST Catalysis Center (KCC)
| | - Osama El-Sepelgy
- Institute of Organic Chemistry
- RWTH Aachen University
- 52074 Aachen
- Germany
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