1
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Yin X, Zeng Y, Chen J, Liu L, Gao Z. Combined active pocket and hinge region engineering to develop an NADPH-dependent phenylglycine dehydrogenase. Bioorg Chem 2022; 120:105601. [PMID: 35033816 DOI: 10.1016/j.bioorg.2022.105601] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 11/20/2021] [Accepted: 01/04/2022] [Indexed: 12/29/2022]
Abstract
NADPH-dependent amino acid dehydrogenases (AADHs) are favorable enzymes to construct artificial biosynthetic pathways in whole-cell for high-value noncanonical amino acids (NcAAs) production. Glutamate dehydrogenases (GluDHs) represent attractive candidates for the development of novel NADPH-dependent AADHs. Here, we report the development of a novel NADPH-dependent phenylglycine dehydrogenase by combining active pocket engineering and hinge region engineering of a GluDH from Pseudomonas putida (PpGluDH). The active pocket of PpGluDH was firstly tailored to optimize its binding mode with bulky substrate α-oxobenzeneacetic acid (α-OA), and then, the hinge region was further engineered to tune the protein conformational dynamics, which finally resulted in a mutant M3 (T196A/T121I/L123D) with a 103-fold increase of catalytic efficiency (kcat/Km) toward α-OA. The M3 mutant exhibited high catalytic performance in both in vitro biocatalysis preparation and in vivo biosynthesis of l-phenylglycine, indicating its promising practical applications. Our results demonstrated that co-engineering of the active pocket and hinge region is an effective strategy for developing novel NADPH-dependent AADHs from GluDHs for NcAAs production.
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Affiliation(s)
- Xinjian Yin
- School of Marine Science, Sun Yat-sen University, Zhuhai 519080, China; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai 519080, China
| | - Yujing Zeng
- School of Marine Science, Sun Yat-sen University, Zhuhai 519080, China
| | - Jun Chen
- School of Marine Science, Sun Yat-sen University, Zhuhai 519080, China
| | - Lan Liu
- School of Marine Science, Sun Yat-sen University, Zhuhai 519080, China; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai 519080, China
| | - Zhizeng Gao
- School of Marine Science, Sun Yat-sen University, Zhuhai 519080, China; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai 519080, China.
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2
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Juma WP, Nyoni D, Brady D, Bode ML. The Application of Biocatalysis in the Preparation and Resolution of Morita-Baylis-Hillman Adducts and Their Derivatives. Chembiochem 2021; 23:e202100527. [PMID: 34822736 DOI: 10.1002/cbic.202100527] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 11/25/2021] [Indexed: 12/16/2022]
Abstract
The Morita-Baylis-Hillman (MBH) reaction affords highly functionalised allylic alcohols containing a new stereogenic centre. These MBH adducts are very versatile and have been transformed into a large range of products, some of which have medicinal potential. Several examples of asymmetric syntheses of MBH adducts have been reported, although a generally applicable method remains to be developed. Biocatalytic approaches for the synthesis and enzymatic kinetic resolution of MBH adducts have been reported, and are discussed in detail in this review. Enzymes able to catalyse the asymmetric MBH reaction have been identified, but selectivity and efficiency have generally been low. Lipases, esterases and nitrile-converting enzymes have all been successfully applied in the resolution of MBH adducts, with excellent selectivity being realised in most cases.
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Affiliation(s)
- Wanyama Peter Juma
- Molecular Sciences Institute, School of Chemistry, University of the Witwatersrand, Private Bag 3, PO WITS, 2050, Johannesburg, South Africa
| | - Dubekile Nyoni
- Molecular Sciences Institute, School of Chemistry, University of the Witwatersrand, Private Bag 3, PO WITS, 2050, Johannesburg, South Africa
| | - Dean Brady
- Molecular Sciences Institute, School of Chemistry, University of the Witwatersrand, Private Bag 3, PO WITS, 2050, Johannesburg, South Africa
| | - Moira L Bode
- Molecular Sciences Institute, School of Chemistry, University of the Witwatersrand, Private Bag 3, PO WITS, 2050, Johannesburg, South Africa
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3
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Slagman S, Fessner WD. Biocatalytic routes to anti-viral agents and their synthetic intermediates. Chem Soc Rev 2021; 50:1968-2009. [DOI: 10.1039/d0cs00763c] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
An assessment of biocatalytic strategies for the synthesis of anti-viral agents, offering guidelines for the development of sustainable production methods for a future COVID-19 remedy.
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Affiliation(s)
- Sjoerd Slagman
- Institut für Organische Chemie und Biochemie
- Technische Universität Darmstadt
- Germany
| | - Wolf-Dieter Fessner
- Institut für Organische Chemie und Biochemie
- Technische Universität Darmstadt
- Germany
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4
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Laga E, Cativiela C, Urriolabeitia EP. Alkenylation of ortho-palladated phenylglycine: synthesis of stilbene derivatives and 3-aryl-isoquinoline-1-carboxylates. J Organomet Chem 2020. [DOI: 10.1016/j.jorganchem.2020.121482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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5
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Busch H, Hagedoorn PL, Hanefeld U. Rhodococcus as A Versatile Biocatalyst in Organic Synthesis. Int J Mol Sci 2019; 20:E4787. [PMID: 31561555 PMCID: PMC6801914 DOI: 10.3390/ijms20194787] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Revised: 09/23/2019] [Accepted: 09/24/2019] [Indexed: 12/11/2022] Open
Abstract
The application of purified enzymes as well as whole-cell biocatalysts in synthetic organic chemistry is becoming more and more popular, and both academia and industry are keen on finding and developing novel enzymes capable of performing otherwise impossible or challenging reactions. The diverse genus Rhodococcus offers a multitude of promising enzymes, which therefore makes it one of the key bacterial hosts in many areas of research. This review focused on the broad utilization potential of the genus Rhodococcus in organic chemistry, thereby particularly highlighting the specific enzyme classes exploited and the reactions they catalyze. Additionally, close attention was paid to the substrate scope that each enzyme class covers. Overall, a comprehensive overview of the applicability of the genus Rhodococcus is provided, which puts this versatile microorganism in the spotlight of further research.
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Affiliation(s)
- Hanna Busch
- Department of Biotechnology, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, The Netherlands.
| | - Peter-Leon Hagedoorn
- Department of Biotechnology, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, The Netherlands.
| | - Ulf Hanefeld
- Department of Biotechnology, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, The Netherlands.
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6
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Hatano M, Nishio K, Mochizuki T, Nishikawa K, Ishihara K. Highly Active Chiral Dilithium(I) Binaphthyldisulfonate Catalysts for Enantio- and Chemoselective Strecker-Type Reactions. ACS Catal 2019. [DOI: 10.1021/acscatal.9b02739] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Manabu Hatano
- Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa, Nagoya 464-8603, Japan
| | - Kosuke Nishio
- Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa, Nagoya 464-8603, Japan
| | - Takuya Mochizuki
- Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa, Nagoya 464-8603, Japan
| | - Keisuke Nishikawa
- Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa, Nagoya 464-8603, Japan
| | - Kazuaki Ishihara
- Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa, Nagoya 464-8603, Japan
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7
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Lazarou KA, González-Nieves K, Chakraborty I, Raptis RG. Spontaneous Resolution by Crystallization of an Octanuclear Iron(III) Complex Using Only Racemic Reagents. Angew Chem Int Ed Engl 2019; 58:7324-7328. [PMID: 30891840 DOI: 10.1002/anie.201901877] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 03/17/2019] [Indexed: 11/10/2022]
Abstract
The P and M enantiomers of the octanuclear [Fe8 (μ4 -O)4 (μ-4-Cl-pz)12 Cl4 ] complex, having T symmetry, were resolved by temporary substitution of chloride ligands by racemic 4-s Bu-phenolates and subsequent crystallization, where the (S)- and (R)-phenolates coordinate selectively to the M and P complexes, respectively. The complexes were characterized by circular dichroism analysis and X-ray structure determination. This work constitutes a rare example of enantiomeric recognition resulting in spontaneous resolution upon crystallization.
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Affiliation(s)
- Konstantinos A Lazarou
- Department of Chemistry and Biochemistry and the Biomolecular Sciences Institute, Florida International University, 11200 SW 8th Street, Miami, FL, 33199, USA
| | - Karilys González-Nieves
- Department of Natural Sciences, University of Puerto Rico at Carolina, PO Box 4800, Carolina, PR, 00984, USA
| | - Indranil Chakraborty
- Department of Chemistry and Biochemistry and the Biomolecular Sciences Institute, Florida International University, 11200 SW 8th Street, Miami, FL, 33199, USA
| | - Raphael G Raptis
- Department of Chemistry and Biochemistry and the Biomolecular Sciences Institute, Florida International University, 11200 SW 8th Street, Miami, FL, 33199, USA
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8
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Lazarou KA, González‐Nieves K, Chakraborty I, Raptis RG. Spontaneous Resolution by Crystallization of an Octanuclear Iron(III) Complex Using Only Racemic Reagents. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201901877] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Konstantinos A. Lazarou
- Department of Chemistry and Biochemistry and the Biomolecular Sciences InstituteFlorida International University 11200 SW 8th Street Miami FL 33199 USA
| | - Karilys González‐Nieves
- Department of Natural SciencesUniversity of Puerto Rico at Carolina PO Box 4800 Carolina PR 00984 USA
| | - Indranil Chakraborty
- Department of Chemistry and Biochemistry and the Biomolecular Sciences InstituteFlorida International University 11200 SW 8th Street Miami FL 33199 USA
| | - Raphael G. Raptis
- Department of Chemistry and Biochemistry and the Biomolecular Sciences InstituteFlorida International University 11200 SW 8th Street Miami FL 33199 USA
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9
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Sultana S, Borah G, Gogoi PK. Ru (III) Schiff-base complex anchored on nanosilica as an efficient and retrievable catalyst for hydration of nitriles. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4595] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Samim Sultana
- Department of Chemistry; Dibrugarh University; Dibrugarh Assam India
| | - Geetika Borah
- Department of Chemistry; Dibrugarh University; Dibrugarh Assam India
| | - Pradip K. Gogoi
- Department of Chemistry; Dibrugarh University; Dibrugarh Assam India
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10
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Wei Q, Zhang F, Zhao X, Wang C, Xiao J, Tang W. Ru-Catalyzed highly diastereoselective hydrogenation of N-tert-butylsulfinyl ketimines for the synthesis of aryl glycine derivatives. Org Biomol Chem 2017. [DOI: 10.1039/c7ob01329a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A Ru-Pincer catalyst enables the diastereoselective hydrogenation of N-tert-butylsulfinyl ketimino esters, affording a promising method for the synthesis of aryl glycine derivatives.
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Affiliation(s)
- Qiaoling Wei
- Key Laboratory of Applied Surface and Colloid Chemistry of Ministry of Education
- and School of Chemistry & Chemical Engineering
- Shaanxi Normal University
- Xi'an
- China
| | - Feng Zhang
- College of Science
- Hunan Agricultural University
- Changsha
- China
| | - Xiaofang Zhao
- Key Laboratory of Applied Surface and Colloid Chemistry of Ministry of Education
- and School of Chemistry & Chemical Engineering
- Shaanxi Normal University
- Xi'an
- China
| | - Chao Wang
- Key Laboratory of Applied Surface and Colloid Chemistry of Ministry of Education
- and School of Chemistry & Chemical Engineering
- Shaanxi Normal University
- Xi'an
- China
| | - Jianliang Xiao
- Key Laboratory of Applied Surface and Colloid Chemistry of Ministry of Education
- and School of Chemistry & Chemical Engineering
- Shaanxi Normal University
- Xi'an
- China
| | - Weijun Tang
- Key Laboratory of Applied Surface and Colloid Chemistry of Ministry of Education
- and School of Chemistry & Chemical Engineering
- Shaanxi Normal University
- Xi'an
- China
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11
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Fan D, Lu J, Liu Y, Zhang Z, Liu Y, Zhang W. Rh-catalyzed asymmetric hydrogenation of racemic aldimines via dynamic kinetic resolution. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.07.046] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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12
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Sun B, Süss-Fink G. Ruthenium-catalyzed hydrogenation of aromatic amino acids in aqueous solution. J Organomet Chem 2016. [DOI: 10.1016/j.jorganchem.2015.09.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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13
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Chen ZB, Zhang Y, Yuan Q, Zhang FL, Zhu YM, Shen JK. Palladium-Catalyzed Synthesis of α-Iminonitriles from Aryl Halides via Isocyanide Double Insertion Reaction. J Org Chem 2016; 81:1610-6. [PMID: 26816103 DOI: 10.1021/acs.joc.5b02777] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
An efficient one-pot synthesis of α-iminonitriles from readily available aryl halides via palladium-catalyzed double isocyanide insertion and elimination has been developed, without using various hypertoxic cyanides and excess oxidants. Furthermore, the utility of this reaction was demonstrated by the rapid total synthesis of quinoxaline and the reaction of functional groups exchanged with aryl halides.
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Affiliation(s)
- Zhen-Bang Chen
- College of Pharmaceutical Sciences, Soochow University , Suzhou, 215123, China
| | - Ying Zhang
- College of Pharmaceutical Sciences, Soochow University , Suzhou, 215123, China
| | - Qing Yuan
- College of Pharmaceutical Sciences, Soochow University , Suzhou, 215123, China
| | - Fang-Ling Zhang
- College of Pharmaceutical Sciences, Soochow University , Suzhou, 215123, China
| | - Yong-Ming Zhu
- College of Pharmaceutical Sciences, Soochow University , Suzhou, 215123, China
| | - Jing-Kang Shen
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences , Shanghai, 201203, China
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14
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Zhang F, Sun H, Song Z, Zhou S, Wen X, Xu QL, Sun H. Stereoselective Synthesis of Arylglycine Derivatives via Palladium-Catalyzed α-Arylation of a Chiral Nickel(II) Glycinate. J Org Chem 2015; 80:4459-64. [DOI: 10.1021/acs.joc.5b00314] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Fan Zhang
- Jiangsu Key Laboratory of
Drug Discovery for Metabolic Diseases and State Key Laboratory of
Natural Medicines, China Pharmaceutical University, 24 Tongjia
Xiang, Nanjing 210009, China
| | - Hengzhi Sun
- Jiangsu Key Laboratory of
Drug Discovery for Metabolic Diseases and State Key Laboratory of
Natural Medicines, China Pharmaceutical University, 24 Tongjia
Xiang, Nanjing 210009, China
| | - Zhuang Song
- Jiangsu Key Laboratory of
Drug Discovery for Metabolic Diseases and State Key Laboratory of
Natural Medicines, China Pharmaceutical University, 24 Tongjia
Xiang, Nanjing 210009, China
| | - Shuxi Zhou
- Jiangsu Key Laboratory of
Drug Discovery for Metabolic Diseases and State Key Laboratory of
Natural Medicines, China Pharmaceutical University, 24 Tongjia
Xiang, Nanjing 210009, China
| | - Xiaoan Wen
- Jiangsu Key Laboratory of
Drug Discovery for Metabolic Diseases and State Key Laboratory of
Natural Medicines, China Pharmaceutical University, 24 Tongjia
Xiang, Nanjing 210009, China
| | - Qing-Long Xu
- Jiangsu Key Laboratory of
Drug Discovery for Metabolic Diseases and State Key Laboratory of
Natural Medicines, China Pharmaceutical University, 24 Tongjia
Xiang, Nanjing 210009, China
| | - Hongbin Sun
- Jiangsu Key Laboratory of
Drug Discovery for Metabolic Diseases and State Key Laboratory of
Natural Medicines, China Pharmaceutical University, 24 Tongjia
Xiang, Nanjing 210009, China
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15
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Abstract
The hydration and hydrolysis of nitriles are valuable synthetic methods used to prepare carboxamides and carboxylic acids. However, chemical hydration and hydrolysis of nitriles involve harsh reaction conditions, have low selectivity, and generate large amounts of waste. Therefore, researchers have confined the scope of these reactions to simple nitrile substrates. However, biological transformations of nitriles are highly efficient, chemoselective, and environmentally benign, which has led synthetic organic chemists and biotechologists to study these reactions in detail over the last two decades. In nature, biological systems degrade nitriles via two distinct pathways: nitrilases catalyze the direct hydrolysis of nitriles to afford carboxylic acids with release of ammonia, and nitrile hydratases catalyze the conversion of nitriles into carboxamides, which then furnish carboxylic acids via hydrolysis in the presence of amidases. Researchers have subsequently developed biocatalytic methods into useful industrial processes for the manufacture of commodity chemicals, including acrylamide. Since the late 1990s, research by my group and others has led to enormous progress in the understanding and application of enantioselective biotransformations of nitriles in organic synthesis. In this Account, I summarize the important advances in enantioselective biotransformations of nitriles and amides, with a primary focus on research from my laboratory. I describe microbial whole-cell-catalyzed kinetic resolution of various functionalized nitriles, amino- and hydroxynitriles, and nitriles that contain small rings and the desymmetrization of prochiral and meso dinitriles and diamides. I also demonstrate how we can apply the biocatalytic protocol to synthesize natural products and bioactive compounds. These nitrile biotransformations offer an attractive and unique protocol for the enantioselective synthesis of polyfunctionalized organic compounds that are not readily obtainable by other methods. Nitrile substrates are readily available, and the mild reaction conditions are specific toward cyano and amido functional groups without interfering with other reactive functional groups. I anticipate that further advances in this field will lead to new and engineered nitrile-hydrolyzing enzymes or catalytic systems with improved activity and altered selectivity. These advances will broaden the scope of these transformations and their applications in organic synthesis.
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Affiliation(s)
- Mei-Xiang Wang
- MOE Key
Laboratory of Bioorganic
Phosphorus Chemistry and Chemical Biology, Department of Chemistry, Tsinghua University, Beijing 100084, China
- Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300072, China
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16
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Large α-aminonitrilase activity screening of nitrilase superfamily members: Access to conversion and enantiospecificity by LC–MS. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.molcatb.2014.05.019] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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17
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Microbial transformation of nitriles to high-value acids or amides. ADVANCES IN BIOCHEMICAL ENGINEERING/BIOTECHNOLOGY 2014. [PMID: 19475377 DOI: 10.1007/10_2008_25] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register]
Abstract
Biotransformation of nitriles mediated by nitrile-amide converting enzymes has attracted considerable attention and developed tremendously in the recent years in China since it offers a valuable alternative to traditional chemical reaction which requires harsh conditions. As a result, an upsurge of these promising enzymes (including nitrile hydratase, nitrilase and amidase) has been taking place. This review aims at describing these enzymes in detail. A variety of microorganisms harboring nitrile-amide converting activities have been isolated and identified in China, some of which have already applied with moderate success. Currently, a wide range of high-value compounds such as aliphatic, alicyclic, aromatic and heterocyclic amides and their corresponding acids were provided by these nitrile-amide degrading organisms. Simultaneously, with the increasing demand of chiral substances, the enantioselectivity of the nitrilase superfamily is widely investigated and exploited in China, especially the bioconversion of optically active alpha-substituted phenylacetamides, acids and 2,2-dimethylcyclopropanecarboxamide and 2,2-dimethylcyclopropanecarboxylic acid by means of the catalysts exhibiting excellent stereoselectivity. Besides their synthetic value, the nitrile-amide converting enzymes also play an important role in environmental protection. In this context, cloning of the genes and expression of these enzymes are presented. In the near future in China, an increasing number of novel nitrile-amide converting organisms will be screened and their potential in the synthesis of useful acids and amides will be further exploited.
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18
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Enders D, Rembiak A, Stöckel BA. Chemo- and Enantioselective Brønsted Acid-Catalyzed Reduction of α-Imino Esters with Catecholborane. Adv Synth Catal 2013. [DOI: 10.1002/adsc.201300352] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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19
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Zhang J, Jiang J, Li Y, Zhao Y, Wan X. A New Strategy for the Construction of α-Amino Acid Esters via Decarboxylation. Org Lett 2013; 15:3222-5. [DOI: 10.1021/ol401139m] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Jie Zhang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China, and Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Chemical Engineering, Jiangsu Normal University, Xuzhou 221116, P. R. China
| | - Jiewen Jiang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China, and Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Chemical Engineering, Jiangsu Normal University, Xuzhou 221116, P. R. China
| | - Yuling Li
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China, and Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Chemical Engineering, Jiangsu Normal University, Xuzhou 221116, P. R. China
| | - Yun Zhao
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China, and Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Chemical Engineering, Jiangsu Normal University, Xuzhou 221116, P. R. China
| | - Xiaobing Wan
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China, and Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Chemical Engineering, Jiangsu Normal University, Xuzhou 221116, P. R. China
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20
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Tang K, Wu G, Zhang P, Zhou C, Liu J. Experimental and Model Study on Enantioselective Extraction of Phenylglycine Enantiomers with BINAP–Metal Complexes. Ind Eng Chem Res 2012. [DOI: 10.1021/ie301976h] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kewen Tang
- Department of Chemistry and
Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, Hunan, China
| | - Guohui Wu
- College of Chemistry and Chemical
Engineering, Central South University,
Changsha 410083, Hunan, China
| | - Panliang Zhang
- Department of Chemistry and
Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, Hunan, China
| | - Congshan Zhou
- Department of Chemistry and
Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, Hunan, China
| | - Jiajia Liu
- College of Chemistry and Chemical
Engineering, Central South University,
Changsha 410083, Hunan, China
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21
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Chanthamath S, Thongjareun S, Shibatomi K, Iwasa S. Ru(II)-Pheox catalyzed N–H insertion reaction of diazoacetamides: synthesis of N-substituted α-aminoamides. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.06.134] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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22
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Chen P, Gao M, Wang DX, Zhao L, Wang MX. Enantioselective Biotransformations of Racemic and Meso Pyrrolidine-2,5-dicarboxamides and Their Application in Organic Synthesis. J Org Chem 2012; 77:4063-72. [DOI: 10.1021/jo300412j] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Peng Chen
- Beijing National Laboratory for Molecular
Sciences, CAS Key Laboratory of Molecular Recognition and Function,
Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Ming Gao
- Beijing National Laboratory for Molecular
Sciences, CAS Key Laboratory of Molecular Recognition and Function,
Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - De-Xian Wang
- Beijing National Laboratory for Molecular
Sciences, CAS Key Laboratory of Molecular Recognition and Function,
Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Liang Zhao
- MOST Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Mei-Xiang Wang
- MOST Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Tsinghua University, Beijing 100084, China
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Chen P, Gao M, Wang DX, Zhao L, Wang MX. Practical biocatalytic desymmetrization of meso-N-heterocyclic dicarboxamides and their application in the construction of aza-sugar containing nucleoside analogs. Chem Commun (Camb) 2012; 48:3482-4. [PMID: 22322323 DOI: 10.1039/c2cc18012j] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Amidase-catalyzed desymmetrization of meso-N-heterocyclic dicarboxamides under very mild conditions provided a highly efficient and practical method for the preparation of enantiomerically pure carbamoyl-substituted heterocyclic amino acids that were unique and versatile platforms for the construction of both antipodes of aza-sugar containing nucleoside analogs.
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Affiliation(s)
- Peng Chen
- Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
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24
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Zhang M, Imm S, Bähn S, Neumann H, Beller M. Synthesis of α-Amino Acid Amides: Ruthenium-Catalyzed Amination of α-Hydroxy Amides. Angew Chem Int Ed Engl 2011; 50:11197-201. [DOI: 10.1002/anie.201104309] [Citation(s) in RCA: 128] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2011] [Indexed: 11/05/2022]
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25
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Zhang M, Imm S, Bähn S, Neumann H, Beller M. Synthesis of α-Amino Acid Amides: Ruthenium-Catalyzed Amination of α-Hydroxy Amides. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201104309] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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26
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Microbial whole cell-catalyzed desymmetrization of prochiral malonamides: practical synthesis of enantioenriched functionalized carbamoylacetates and their application in the preparation of unusual α-amino acids. Tetrahedron 2011. [DOI: 10.1016/j.tet.2011.05.103] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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27
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Pérez-Fuertes Y, Taylor JE, Tickell DA, Mahon MF, Bull SD, James TD. Asymmetric Strecker synthesis of α-arylglycines. J Org Chem 2011; 76:6038-47. [PMID: 21627154 DOI: 10.1021/jo200528s] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A practically simple three-component Strecker reaction for the asymmetric synthesis of enantiopure α-arylglycines has been developed. Addition of a range of aryl-aldehydes to a solution of sodium cyanide and (S)-1-(4-methoxyphenyl)ethylamine affords highly crystalline (S,S)-α-aminonitriles that are easily obtained in diastereomerically pure form. Heating the resultant (S,S)-α-aminonitriles in 6 M aqueous HCl at reflux resulted in cleavage of their chiral auxiliary fragments and concomitant hydrolysis of their nitrile groups to afford enantiopure (S)-α-arylglycines. The enantiopurities of these (S)-α-arylglycines were determined via derivatization of their corresponding methyl esters with 2-formylphenylboronic acid and (S)-BINOL, followed by (1)H NMR spectroscopic analysis of the resultant mixtures of diastereomeric iminoboronate esters.
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Overexpression of a recombinant amidase in a complex auto-inducing culture: purification, biochemical characterization, and regio- and stereoselectivity. J Ind Microbiol Biotechnol 2011; 38:1931-8. [DOI: 10.1007/s10295-011-0979-7] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2011] [Accepted: 04/19/2011] [Indexed: 11/26/2022]
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30
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Liu C, Zhang H, Shi W, Lei A. Bond Formations between Two Nucleophiles: Transition Metal Catalyzed Oxidative Cross-Coupling Reactions. Chem Rev 2011; 111:1780-824. [DOI: 10.1021/cr100379j] [Citation(s) in RCA: 1682] [Impact Index Per Article: 129.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Chao Liu
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P. R. China
| | - Hua Zhang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P. R. China
| | - Wei Shi
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P. R. China
| | - Aiwen Lei
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P. R. China
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, P. R. China
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31
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Yousefi M, Mohammadi M, Habibi Z, Cheraghi Z. Nitrile biotransformation by whole cells ofAspergillussp. PTCC 5266. BIOCATAL BIOTRANSFOR 2011. [DOI: 10.3109/10242422.2010.550002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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32
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Li Y, Ji DM, Xu MH. Highly diastereoselective Friedel–Crafts reaction of arenes with N-tert-butanesulfinylimino ester towards the efficient synthesis of α-arylglycines. Org Biomol Chem 2011; 9:8452-8. [DOI: 10.1039/c1ob06450a] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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33
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Morán-Ramallal R, Liz R, Gotor V. Enantiopure trans-3-Arylaziridine-2-carboxamides: Preparation by Bacterial Hydrolysis and Ring-Openings toward Enantiopure, Unnatural d-α-Amino Acids. J Org Chem 2010; 75:6614-24. [DOI: 10.1021/jo101377j] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Roberto Morán-Ramallal
- Departamento de Química Orgánica e Inorgánica and Instituto Universitario de Biotecnología de Asturias, Universidad de Oviedo, E-33071 Oviedo, Spain
| | - Ramón Liz
- Departamento de Química Orgánica e Inorgánica and Instituto Universitario de Biotecnología de Asturias, Universidad de Oviedo, E-33071 Oviedo, Spain
| | - Vicente Gotor
- Departamento de Química Orgánica e Inorgánica and Instituto Universitario de Biotecnología de Asturias, Universidad de Oviedo, E-33071 Oviedo, Spain
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34
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Asymmetric nitrile-hydration with bifunctional ruthenium catalysts bearing chiral N-sulfonyldiamine ligands. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.tetasy.2010.03.011] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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35
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A practical synthesis of optically active arylglycines via catalytic asymmetric Strecker reaction. Tetrahedron 2009. [DOI: 10.1016/j.tet.2009.04.098] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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36
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Martínková L, Uhnáková B, Pátek M, Nesvera J, Kren V. Biodegradation potential of the genus Rhodococcus. ENVIRONMENT INTERNATIONAL 2009; 35:162-77. [PMID: 18789530 DOI: 10.1016/j.envint.2008.07.018] [Citation(s) in RCA: 284] [Impact Index Per Article: 18.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/29/2008] [Revised: 07/02/2008] [Accepted: 07/22/2008] [Indexed: 05/24/2023]
Abstract
A large number of aromatic compounds and organic nitriles, the two groups of compounds covered in this review, are intermediates, products, by-products or waste products of the chemical and pharmaceutical industries, agriculture and the processing of fossil fuels. The majority of these synthetic substances (xenobiotics) are toxic and their release and accumulation in the environment pose a serious threat to living organisms. Bioremediation using various bacterial strains of the genus Rhodococcus has proved to be a promising option for the clean-up of polluted sites. The large genomes of rhodococci, their redundant and versatile catabolic pathways, their ability to uptake and metabolize hydrophobic compounds, to form biofilms, to persist in adverse conditions and the availability of recently developed tools for genetic engineering in rhodococci make them suitable industrial microorganisms for biotransformations and the biodegradation of many organic compounds. The peripheral and central catabolic pathways in rhodococci are characterized for each type of aromatics (hydrocarbons, phenols, halogenated, nitroaromatic, and heterocyclic compounds) in this review. Pathways involved in the hydrolysis of nitrile pollutants (aliphatic nitriles, benzonitrile analogues) and the corresponding enzymes (nitrilase, nitrile hydratase) are described in detail. Examples of regulatory mechanisms for the expression of the catabolic genes are given. The strains that efficiently degrade the compounds in question are highlighted and examples of their use in biodegradation processes are presented.
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Affiliation(s)
- Ludmila Martínková
- Centre of Biocatalysis and Biotransformation, Institute of Microbiology, Academy of Sciences of the Czech Republic, Vídenská 1083, CZ-142 20 Prague 4, Czech Republic.
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Murahashi SI, Nakae T, Terai H, Komiya N. Ruthenium-Catalyzed Oxidative Cyanation of Tertiary Amines with Molecular Oxygen or Hydrogen Peroxide and Sodium Cyanide: sp3 C−H Bond Activation and Carbon−Carbon Bond Formation. J Am Chem Soc 2008; 130:11005-12. [DOI: 10.1021/ja8017362] [Citation(s) in RCA: 319] [Impact Index Per Article: 19.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Shun-Ichi Murahashi
- Department of Chemistry, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka 560-8531, Japan, and Department of Applied Chemistry, Faculty of Engineering, Okayama University of Science, 1-1 Ridaicho, Okayama, Okayama 700-0005, Japan
| | - Takahiro Nakae
- Department of Chemistry, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka 560-8531, Japan, and Department of Applied Chemistry, Faculty of Engineering, Okayama University of Science, 1-1 Ridaicho, Okayama, Okayama 700-0005, Japan
| | - Hiroyuki Terai
- Department of Chemistry, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka 560-8531, Japan, and Department of Applied Chemistry, Faculty of Engineering, Okayama University of Science, 1-1 Ridaicho, Okayama, Okayama 700-0005, Japan
| | - Naruyoshi Komiya
- Department of Chemistry, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka 560-8531, Japan, and Department of Applied Chemistry, Faculty of Engineering, Okayama University of Science, 1-1 Ridaicho, Okayama, Okayama 700-0005, Japan
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38
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Ma DY, Wang DX, Pan J, Huang ZT, Wang MX. Nitrile Biotransformations for the Synthesis of Highly Enantioenriched β-Hydroxy and β-Amino Acid and Amide Derivatives: A General and Simple but Powerful and Efficient Benzyl Protection Strategy To Increase Enantioselectivity of the Amidase. J Org Chem 2008; 73:4087-91. [DOI: 10.1021/jo800074k] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Da-You Ma
- Beijing National Laboratory for Molecular Sciences, Laboratory of Chemical Biology, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China
| | - De-Xian Wang
- Beijing National Laboratory for Molecular Sciences, Laboratory of Chemical Biology, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China
| | - Jie Pan
- Beijing National Laboratory for Molecular Sciences, Laboratory of Chemical Biology, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China
| | - Zhi-Tang Huang
- Beijing National Laboratory for Molecular Sciences, Laboratory of Chemical Biology, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China
| | - Mei-Xiang Wang
- Beijing National Laboratory for Molecular Sciences, Laboratory of Chemical Biology, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China
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39
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Piotrkowska B, Myślińska M, Gdaniec M, Herman A, Połoński T. Conformational Properties, Chiroptical Spectra, and Molecular Self-Assembly of 2,3-Piperazinodiones and Their Dithiono Analogues. J Org Chem 2008; 73:2852-61. [DOI: 10.1021/jo800037w] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Barbara Piotrkowska
- Department of Chemistry, Technical University, 80-952 Gdańsk, Poland, and Faculty of Chemistry, A. Mickiewicz University, 60-780 Poznań, Poland
| | - Małgorzata Myślińska
- Department of Chemistry, Technical University, 80-952 Gdańsk, Poland, and Faculty of Chemistry, A. Mickiewicz University, 60-780 Poznań, Poland
| | - Maria Gdaniec
- Department of Chemistry, Technical University, 80-952 Gdańsk, Poland, and Faculty of Chemistry, A. Mickiewicz University, 60-780 Poznań, Poland
| | - Aleksander Herman
- Department of Chemistry, Technical University, 80-952 Gdańsk, Poland, and Faculty of Chemistry, A. Mickiewicz University, 60-780 Poznań, Poland
| | - Tadeusz Połoński
- Department of Chemistry, Technical University, 80-952 Gdańsk, Poland, and Faculty of Chemistry, A. Mickiewicz University, 60-780 Poznań, Poland
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40
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Solyanikova IP, Travkin VM, Rybkina DO, Plotnikova EG, Golovleva LA. Variability of enzyme system of Nocardioform bacteria as a basis of their metabolic activity. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2008; 43:241-252. [PMID: 18368545 DOI: 10.1080/03601230701771180] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
The present review describes some aspects of organization of biodegradative pathways of Nocardioform microorganisms, first of all, with respect to their ability to degrade aromatic compounds, mostly methylbenzoate, chlorosubstituted phenols, and chlorinated biphenyls and the intermediates of their transformation: 4-chlorobenzoate and para-hydroxybenzoate. Various enzyme systems induced during degradation processes are defined. The ability of microorganisms to induce a few key enzymes under the influence of xenobiotics is described. This ability may increase the biodegradative potential of strains allowing them to survive in the changing environment or demonstrate to some extent the unspecific response of microorganisms to the effect of toxicants. Nocardioform microorganisms responsible for degradation of such persistent compounds as polychlorinated biphenyls, polyaromatic hydrocarbons, chlorinated benzoates and phenols and other xenobiotics are characterized. The possibility of using Nocardioform microorganisms in some aspects of biotechnology due to their ability to produce some compounds important for industry is also estimated.
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Affiliation(s)
- Inna P Solyanikova
- Skryabin' Institute of Biochemistry and Physiology of Microorganisms, Russian Academy of Sciences, Moscow, Russia
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41
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Ma DY, Wang DX, Pan J, Huang ZT, Wang MX. Nitrile biotransformations for the synthesis of enantiomerically enriched β2-, and β3-hydroxy and -alkoxy acids and amides, a dramatic O-substituent effect of the substrates on enantioselectivity. ACTA ACUST UNITED AC 2008. [DOI: 10.1016/j.tetasy.2008.01.017] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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42
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Wang JY, Wang DX, Pan J, Huang ZT, Wang MX. Nitrile and Amide Biotransformations for the Synthesis of Enantiomerically Pure 3-Arylaziridine-2-carboxamide Derivatives and Their Stereospecific Ring-Opening Reactions. J Org Chem 2007; 72:9391-4. [DOI: 10.1021/jo701732h] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jin-Yuan Wang
- Beijing National Laboratory for Molecular Sciences, Laboratory of Chemical Biology, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China
| | - De-Xian Wang
- Beijing National Laboratory for Molecular Sciences, Laboratory of Chemical Biology, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China
| | - Jie Pan
- Beijing National Laboratory for Molecular Sciences, Laboratory of Chemical Biology, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China
| | - Zhi-Tang Huang
- Beijing National Laboratory for Molecular Sciences, Laboratory of Chemical Biology, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China
| | - Mei-Xiang Wang
- Beijing National Laboratory for Molecular Sciences, Laboratory of Chemical Biology, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China
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43
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Smucker BW, Vanstipdonk MJ, Eichhorn DM. Incorporation of thiolate donation using 2,2'-dithiodibenzaldehyde: complexes of a pentadentate N2S3 ligand with relevance to the active site of Co nitrile hydratase. J Inorg Biochem 2007; 101:1537-42. [PMID: 17698201 PMCID: PMC2278241 DOI: 10.1016/j.jinorgbio.2007.06.042] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2007] [Revised: 06/25/2007] [Accepted: 06/29/2007] [Indexed: 11/22/2022]
Abstract
The use of 2,2'-dithiodibenzaldehyde (DTDB) as a reactant for incorporating thiolate donors into the coordination sphere of a transition metal complex without the need for protecting groups is expanded to include the synthesis of complexes with pentadentate ligands. The ligand N,N'-bis(thiosalicylideneimine)-2,2'-thiobis(ethylamine) (tsaltp) is synthesized at a cobalt center by the reaction of DTDB with a Co complex of thiobis(ethylamine). The resulting Co complexes are thus coordinated by the N(2)S(3) pentadentate ligand through two imine N atoms, two thiolate S atoms, and one thioether S atom. A dimeric, bis-thiolate-bridged complex (1) is isolated and converted to a monomeric CN adduct (2) by treatment with KCN. The N(2)S(3) coordination environment provided by the tsaltp ligand is similar to that provided by the protein donors at the active site of the nitrile hydratase enzymes, with 2 being the first octahedral Co complex reported with such a coordination sphere.
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Affiliation(s)
- Bradley W Smucker
- Department of Chemistry, Wichita State University, Wichita, KS 67260-0051, United States
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44
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Song L, Wang M, Yang X, Qian S. Purification and characterization of the enantioselective nitrile hydratase from Rhodococcus sp. AJ270. Biotechnol J 2007; 2:717-24. [PMID: 17330219 DOI: 10.1002/biot.200600215] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Nitrile hydratase (NHase, EC 4.2.1.84) from Rhodococcus sp. AJ270 was purified with 23.96% yield after sonication, ammonium sulfate fractionation, ion exchange, hydrophobic and gel-filtration column chromatography. The enzyme showed intriguing characteristics: it hydrated not only aliphatic and heterocyclic nitriles but also aromatic ones. Some substrates were also hydrated enantioselectively to the corresponding amides. The enantiomeric excess (ee) value of the enzyme hydrating trans-2,2-dimethyl-3-phenylcyclopropanecarbonitrile was 84.7. The enzyme is composed of two subunits: an alpha subunit and beta subunit of 22 975 Da and 23 493 Da, respectively. The optimal temperature and pH for the catalytic reaction of the enzyme was 25 degrees C and pH 7.6. The enzyme activity of the purified NHase was strongly inhibited by some oxidizing agents and heavy metals.
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Affiliation(s)
- Liya Song
- State Key Laboratories of Transducer Technology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
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45
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Gao M, Wang DX, Zheng QY, Huang ZT, Wang MX. Remarkable Electronic and Steric Effects in the Nitrile Biotransformations for the Preparation of Enantiopure Functionalized Carboxylic Acids and Amides: Implication for an Unsaturated Carbon−Carbon Bond Binding Domain of the Amidase. J Org Chem 2007; 72:6060-6. [PMID: 17604398 DOI: 10.1021/jo070581b] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Biotransformations of various functionalized racemic nitriles catalyzed by Rhodococcus erythropolis AJ270, a nitrile hydratase/amidase-containing microbial whole-cell catalyst, were studied. While the nitrile hydratase exhibits high catalytic efficiency but very low enantioselectivity against almost all nitrile substrates examined, the amidase is very sensitive toward the structure of the amides. The release of the steric crowdedness around the stereocenter of the substrates and the introduction of an unsaturated carbon-carbon bond into the substrates led to the significant acceleration of the reaction rate and the dramatic enhancement of the enantioselectivity. Nitrile biotransformations provide a unique and high-yielding synthetic route to highly enantiopure carboxylic acids and amides functionalized with an allyl, propargyl, allenyl, or vinyl group. The synthetic applications have been demonstrated by the synthesis of enantiopure heterocyclic compounds including iodoenol gamma-lactone, gamma-lactam, and 3-allyl-1-phenyl-3,4-dihydro-1H-quinolin-2-one derivatives.
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Affiliation(s)
- Ming Gao
- Beijing National Laboratory for Molecular Sciences, Laboratory of Chemical Biology, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China
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46
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Wang JY, Wang DX, Zheng QY, Huang ZT, Wang MX. Nitrile Biotransformations for the Efficient Synthesis of Highly Enantiopure 1-Arylaziridine-2-carboxylic Acid Derivatives and Their Stereoselective Ring-Opening Reactions. J Org Chem 2007; 72:2040-5. [PMID: 17286438 DOI: 10.1021/jo062339v] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Catalyzed by the Rhodococcus erythropolis AJ270 whole cell catalyst under very mild conditions, biotransformations of racemic 1-arylaziridine-2-carbonitriles proceeded efficiently and enantioselectively to produce highly enantiopure S-1-arylaziridine-2-carboxamides and R-1-arylaziridine-2-carboxylic acids in excellent yields. Although the nitrile hydratase exhibits no selectivity against all nitrile substrates, the amidase is highly R-enantioselective towards 1-arylaziridine-2-carboxamides. When treated with benzyl bromide, 1-phenylaziridine-2S-carboxamide underwent a highly regioselective and enantiospecific ring-opening reaction to afford an almost quantitative yield of R-beta-[(benzyl)phenylamino]-alpha-bromopropanamide (C-2 attack) and R-alpha-[(benzyl)phenylamino]-beta-bromopropanamide (C-3 attack) in a 10.5:1 ratio. Further treatment of the resulting ring-opening products with an N-nucleophilic reagent such as amine and azide led to, through most probably the aziridinium intermediate, the formation of S-alpha-substituted-beta-[(benzyl)phenylamino]propanamides in good chemical yields with high enantiomeric purity.
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Affiliation(s)
- Jin-Yuan Wang
- Beijing National Laboratory for Molecular Sciences, Laboratory of Chemical Biology, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China
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47
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Gärtner M, Ballmann J, Damm C, Heinemann FW, Kisch H. Support-controlled chemoselective olefin–imine addition photocatalyzed by cadmium sulfide on a zinc sulfide carrier. Photochem Photobiol Sci 2007; 6:159-64. [PMID: 17277839 DOI: 10.1039/b616070k] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The semiconductor catalyzed photoaddition of cyclopentene or cyclohexene to various novel electron-poor imines of type p-XC(6)H(4)(CN)C[double bond, length as m-dash]N(COPh) (X = H, F, Cl, Br, Me, MeO) was investigated as a function of the nature of the cadmium sulfide photocatalyst. Irradiation (lambda>/= 350 nm) of silica supported cadmium sulfide surprisingly did not afford the expected olefin-imine adducts but an imine hydrocyanation product via an unprecedented dark reaction. However, when silica was replaced by zinc sulfide as the support for cadmium sulfide, the expected homoallylic N-benzoyl-alpha-amino cyanides were isolated in yields of 65-84%. Thus, chemoselectivity is introduced through replacing an insulating by a semiconducting support, a hitherto unknown effect in semiconductor photocatalysis. From the sign of the time resolved photovoltage it is found that the mixed metal sulfide interface CdS/ZnS increases the lifetime of photogenerated electron-hole pairs by about one order of magnitude as compared to the SiO(2)/CdS system. The reaction rate increases with increasing imine sigma-Hammett constants and decreasing stability of intermediate benzyl radicals.
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Affiliation(s)
- Marc Gärtner
- Universität Erlangen-Nürnberg, Institut für Anorganische Chemie, Egerlandstr. 1, D-91058, Erlangen, Germany
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48
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Gao M, Wang DX, Zheng QY, Wang MX. An Unusual β-Vinyl Effect Leading to High Efficiency and Enantioselectivity of the Amidase, Nitrile Biotransformations for the Preparation of Enantiopure 3-Arylpent-4-enoic Acids and Amides and Their Applications in Synthesis. J Org Chem 2006; 71:9532-5. [PMID: 17137391 DOI: 10.1021/jo061664f] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Biotransformations of 3-arylpent-4-enenitriles catalyzed by Rhodococcus erythropolis AJ270, a nitrile hydratase/amidase-containing microbial whole-cell catalyst were studied, and an unusual beta-vinyl effect of the substrate on the biocatalytic efficiency and enantioselectivity of the amidase was observed. While 3-arylpent-4-enenitriles and 3-phenylpentanenitrile were efficiently hydrated by the action of the less R-enantioselective nitrile hydratase, the amidase showed greater activity and higher enantioselectivity against 3-arylpent-4-enoic acid amides than 3-arylpentanoic acid amides. Under very mild conditions, nitrile biotransformations provided an efficient synthesis of highly enantiopure (R)-3-arylpent-4-enoic acids and (S)-3-arylpent-4-enoic acid amides, and their applications were demonstrated by the synthesis of chiral gamma-amino acid, 2-pyrrolidinone, and 2-azepinone derivatives.
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Affiliation(s)
- Ming Gao
- Beijing National Laboratory for Molecular Sciences, Laboratory of Chemical Biology, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China
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Liu J, Wang DX, Zheng QY, Wang MX. Biocatalytic Synthesis of Highly Enantiopure 1,4-Benzodioxane-2-carboxylic Acid and Amide. CHINESE J CHEM 2006. [DOI: 10.1002/cjoc.200690312] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Chemoenzymatic synthesis of enantiopure geminally dimethylated cyclopropane-based C2- and pseudo-C2-symmetric diamines. ACTA ACUST UNITED AC 2006. [DOI: 10.1016/j.tetasy.2006.10.030] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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