201
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Hazarika S, Barman P. Visible‐Light Cercosporin Catalyzed Sulfenylation of Electron‐Rich Compounds with Thiols under Transition‐Metal‐Free Conditions. ChemistrySelect 2020. [DOI: 10.1002/slct.202002512] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Sukanya Hazarika
- Department of Chemistry National Institute of Technology Silchar Assam 788010 India
| | - Pranjit Barman
- Department of Chemistry National Institute of Technology Silchar Assam 788010 India
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202
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Wang L, Yang J, Huang JP, Li J, Luo J, Yan Y, Huang SX. Bisaspochalasins A–C: Three Cytochalasan Homodimers with Highly Fused Ring System from an Endophytic Aspergillus flavipes. Org Lett 2020; 22:7930-7935. [PMID: 33001654 DOI: 10.1021/acs.orglett.0c02860] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Li Wang
- State Key Laboratory of Phytochemistry and Plant Resources in West China and CAS Center for Excellence in Molecular Plant Sciences, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jing Yang
- State Key Laboratory of Phytochemistry and Plant Resources in West China and CAS Center for Excellence in Molecular Plant Sciences, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Jian-Ping Huang
- State Key Laboratory of Phytochemistry and Plant Resources in West China and CAS Center for Excellence in Molecular Plant Sciences, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Jie Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China and CAS Center for Excellence in Molecular Plant Sciences, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Jianying Luo
- State Key Laboratory of Phytochemistry and Plant Resources in West China and CAS Center for Excellence in Molecular Plant Sciences, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yijun Yan
- State Key Laboratory of Phytochemistry and Plant Resources in West China and CAS Center for Excellence in Molecular Plant Sciences, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Sheng-Xiong Huang
- State Key Laboratory of Phytochemistry and Plant Resources in West China and CAS Center for Excellence in Molecular Plant Sciences, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
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203
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Song Q, Zhang P, Liang S, Chen X, Li P, Li W. Organocatalytic Regio- and Enantioselective 1,8-Additions of Nitrogen and Sulfur Nucleophiles to 6-Methylene-6H-indoles. Org Lett 2020; 22:7859-7863. [DOI: 10.1021/acs.orglett.0c02769] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Qianqian Song
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University, Qingdao 266021, China
| | - Pei Zhang
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University, Qingdao 266021, China
| | - Shuai Liang
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University, Qingdao 266021, China
| | - Xuling Chen
- Shenzhen Grubbs Institute and Department of Chemistry, College of Science, Southern University of Science and Technology (SUSTech), Shenzhen 518055, China
| | - Pengfei Li
- Shenzhen Grubbs Institute and Department of Chemistry, College of Science, Southern University of Science and Technology (SUSTech), Shenzhen 518055, China
- Guangdong Provincial Key Laboratory of Catalysis, SUSTech, Shenzhen 518055, China
| | - Wenjun Li
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University, Qingdao 266021, China
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204
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Wu Y, Xiao Y, Yang Y, Song R, Li J. Recent Advances in Silver‐Mediated Radical Difunctionalization of Alkenes. ChemCatChem 2020. [DOI: 10.1002/cctc.202000900] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Yan‐Chen Wu
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle Nanchang Hangkong University Nanchang 330063 P. R. China
| | - Yu‐Ting Xiao
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle Nanchang Hangkong University Nanchang 330063 P. R. China
| | - Yong‐Zheng Yang
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle Nanchang Hangkong University Nanchang 330063 P. R. China
| | - Ren‐Jie Song
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle Nanchang Hangkong University Nanchang 330063 P. R. China
| | - Jin‐Heng Li
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle Nanchang Hangkong University Nanchang 330063 P. R. China
- State Key Laboratory of Chemo/Biosensing and Chemometrics College of Chemistry and Chemical Engineering Hunan University Changsha 410082 P. R. China
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205
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Louka S, Barry SM, Heyes DJ, Mubarak MQE, Ali HS, Alkhalaf LM, Munro AW, Scrutton NS, Challis GL, de Visser SP. Catalytic Mechanism of Aromatic Nitration by Cytochrome P450 TxtE: Involvement of a Ferric-Peroxynitrite Intermediate. J Am Chem Soc 2020; 142:15764-15779. [PMID: 32811149 PMCID: PMC7586343 DOI: 10.1021/jacs.0c05070] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
![]()
The
cytochromes P450 are heme-dependent enzymes that catalyze many
vital reaction processes in the human body related to biodegradation
and biosynthesis. They typically act as mono-oxygenases; however,
the recently discovered P450 subfamily TxtE utilizes O2 and NO to nitrate aromatic substrates such as L-tryptophan.
A direct and selective aromatic nitration reaction may be useful in
biotechnology for the synthesis of drugs or small molecules. Details
of the catalytic mechanism are unknown, and it has been suggested
that the reaction should proceed through either an iron(III)-superoxo
or an iron(II)-nitrosyl intermediate. To resolve this controversy,
we used stopped-flow kinetics to provide evidence for a catalytic
cycle where dioxygen binds prior to NO to generate an active iron(III)-peroxynitrite
species that is able to nitrate l-Trp efficiently. We show
that the rate of binding of O2 is faster than that of NO
and also leads to l-Trp nitration, while little evidence
of product formation is observed from the iron(II)-nitrosyl complex.
To support the experimental studies, we performed density functional
theory studies on large active site cluster models. The studies suggest
a mechanism involving an iron(III)-peroxynitrite that splits homolytically
to form an iron(IV)-oxo heme (Compound II) and a free NO2 radical via a small free energy of activation. The latter activates
the substrate on the aromatic ring, while compound II picks up the ipso-hydrogen to form the product. The calculations give
small reaction barriers for most steps in the catalytic cycle and,
therefore, predict fast product formation from the iron(III)-peroxynitrite
complex. These findings provide the first detailed insight into the
mechanism of nitration by a member of the TxtE subfamily and highlight
how the enzyme facilitates this novel reaction chemistry.
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Affiliation(s)
- Savvas Louka
- The Manchester Institute of Biotechnology, The University of Manchester, 131 Princess Street, Manchester M1 7DN, United Kingdom.,Department of Chemical Engineering and Analytical Science, The University of Manchester, Oxford Road, Mancheste M13 9PL, United Kingdom
| | - Sarah M Barry
- Department of Chemistry, University of Warwick, Coventry CV4 7AL, United Kingdom
| | - Derren J Heyes
- The Manchester Institute of Biotechnology, The University of Manchester, 131 Princess Street, Manchester M1 7DN, United Kingdom.,Department of Chemistry, The University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
| | - M Qadri E Mubarak
- The Manchester Institute of Biotechnology, The University of Manchester, 131 Princess Street, Manchester M1 7DN, United Kingdom.,Department of Chemical Engineering and Analytical Science, The University of Manchester, Oxford Road, Mancheste M13 9PL, United Kingdom
| | - Hafiz Saqib Ali
- The Manchester Institute of Biotechnology, The University of Manchester, 131 Princess Street, Manchester M1 7DN, United Kingdom.,Department of Chemistry, The University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
| | - Lona M Alkhalaf
- Department of Chemistry, University of Warwick, Coventry CV4 7AL, United Kingdom
| | - Andrew W Munro
- The Manchester Institute of Biotechnology, The University of Manchester, 131 Princess Street, Manchester M1 7DN, United Kingdom.,Department of Chemistry, The University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
| | - Nigel S Scrutton
- The Manchester Institute of Biotechnology, The University of Manchester, 131 Princess Street, Manchester M1 7DN, United Kingdom.,Department of Chemistry, The University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
| | - Gregory L Challis
- Department of Chemistry, University of Warwick, Coventry CV4 7AL, United Kingdom.,Department of Biochemistry and Molecular Biology, Monash University, Clayton VIC 3800, Australia.,ARC Centre for Excellence for Innovations in Peptide and Protein Science, Monash University, Clayton, VIC 3800, Australia
| | - Sam P de Visser
- The Manchester Institute of Biotechnology, The University of Manchester, 131 Princess Street, Manchester M1 7DN, United Kingdom.,Department of Chemical Engineering and Analytical Science, The University of Manchester, Oxford Road, Mancheste M13 9PL, United Kingdom
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206
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Cheng R, Wu L, Lai R, Peng C, Naowarojna N, Hu W, Li X, Whelan SA, Lee N, Lopez J, Zhao C, Yong Y, Xue J, Jiang X, Grinstaff MW, Deng Z, Chen J, Cui Q, Zhou J, Liu P. Single-step Replacement of an Unreactive C-H Bond by a C-S Bond Using Polysulfide as the Direct Sulfur Source in Anaerobic Ergothioneine Biosynthesis. ACS Catal 2020; 10:8981-8994. [PMID: 34306804 DOI: 10.1021/acscatal.0c01809] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Ergothioneine, a natural longevity vitamin and antioxidant, is a thiol-histidine derivative. Recently, two types of biosynthetic pathways were reported. In the aerobic ergothioneine biosynthesis, a non-heme iron enzyme incorporates a sulfoxide to an sp2 C-H bond in trimethyl-histidine (hercynine) through oxidation reactions. In contrast, in the anaerobic ergothioneine biosynthetic pathway in a green sulfur bacterium, Chlorobium limicola, a rhodanese domain containing protein (EanB) directly replaces this unreactive hercynine C-H bond with a C-S bond. Herein, we demonstrate that polysulfide (HSSnSR) is the direct sulfur-source in EanB-catalysis. After identifying EanB's substrates, X-ray crystallography of several intermediate states along with mass spectrometry results provide additional mechanistic details for this reaction. Further, quantum mechanics/molecular mechanics (QM/MM) calculations reveal that protonation of Nπ of hercynine by Tyr353 with the assistance of Thr414 is a key activation step for the hercynine sp2 C-H bond in this trans-sulfuration reaction.
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Affiliation(s)
- Ronghai Cheng
- Department of Chemistry, Boston University, Boston, Massachusetts 02215, United States
| | - Lian Wu
- State Key Laboratory of Bio-organic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Shanghai 200032, China
- Key Laboratory of Synthetic Biology, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Shanghai 200032, China
- College of Life Science, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Rui Lai
- Department of Chemistry, Boston University, Boston, Massachusetts 02215, United States
| | - Chao Peng
- National Facility for Protein Science in Shanghai, Zhangjiang Lab, Shanghai Advanced Research Institute, Chinese Academy of Science, Shanghai 201210, China
| | - Nathchar Naowarojna
- Department of Chemistry, Boston University, Boston, Massachusetts 02215, United States
| | - Weiyao Hu
- Department of Chemistry, Boston University, Boston, Massachusetts 02215, United States
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Xinhao Li
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Stephen A. Whelan
- Department of Chemistry, Boston University, Boston, Massachusetts 02215, United States
| | - Norman Lee
- Department of Chemistry, Boston University, Boston, Massachusetts 02215, United States
| | - Juan Lopez
- Department of Chemistry, Boston University, Boston, Massachusetts 02215, United States
| | - Changming Zhao
- Department of Chemistry, Boston University, Boston, Massachusetts 02215, United States
- Key Laboratory of Combinatory Biosynthesis and Drug Discovery (Wuhan University), Ministry of Education, School of Pharmaceutical Sciences, Wuhan University, Hubei 430072, China
| | - Youhua Yong
- State Key Laboratory of Bio-organic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Shanghai 200032, China
| | - Jiahui Xue
- Shanghai Key Laboratory of Green Chemistry and Chemical Process, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China
| | - Xuefeng Jiang
- Shanghai Key Laboratory of Green Chemistry and Chemical Process, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China
| | - Mark W. Grinstaff
- Department of Chemistry, Boston University, Boston, Massachusetts 02215, United States
- Department of Biomedical Engineering, Boston University, Boston, Massachusetts 02215, United States
| | - Zixin Deng
- Key Laboratory of Combinatory Biosynthesis and Drug Discovery (Wuhan University), Ministry of Education, School of Pharmaceutical Sciences, Wuhan University, Hubei 430072, China
| | - Jiesheng Chen
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Qiang Cui
- Department of Chemistry, Boston University, Boston, Massachusetts 02215, United States
| | - Jiahai Zhou
- State Key Laboratory of Bio-organic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Shanghai 200032, China
| | - Pinghua Liu
- Department of Chemistry, Boston University, Boston, Massachusetts 02215, United States
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207
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Meng X, Xu H, Cao X, Cai XM, Luo J, Wang F, Huang S. Electrochemically Enabled Sulfonylation of Alkynes with Sodium Sulfinates. Org Lett 2020; 22:6827-6831. [DOI: 10.1021/acs.orglett.0c02341] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xiangtai Meng
- Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-Forest Biomass, College of Chemical Engineering, Jiangsu Key Lab of Biomass-Based Green Fuels and Chemicals, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, P. R. China
| | - Hehua Xu
- Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-Forest Biomass, College of Chemical Engineering, Jiangsu Key Lab of Biomass-Based Green Fuels and Chemicals, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, P. R. China
| | - Xiaoji Cao
- College of Chemical Engineering, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou, Zhejiang 310014, P. R. China
| | - Xu-Min Cai
- Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-Forest Biomass, College of Chemical Engineering, Jiangsu Key Lab of Biomass-Based Green Fuels and Chemicals, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, P. R. China
| | - Jinyue Luo
- Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-Forest Biomass, College of Chemical Engineering, Jiangsu Key Lab of Biomass-Based Green Fuels and Chemicals, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, P. R. China
| | - Fei Wang
- Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-Forest Biomass, College of Chemical Engineering, Jiangsu Key Lab of Biomass-Based Green Fuels and Chemicals, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, P. R. China
| | - Shenlin Huang
- Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-Forest Biomass, College of Chemical Engineering, Jiangsu Key Lab of Biomass-Based Green Fuels and Chemicals, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, P. R. China
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208
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Acosta-Guzmán P, Mahecha-Mahecha C, Gamba-Sánchez D. Electrophilic Chlorine from Chlorosulfonium Salts: A Highly Chemoselective Reduction of Sulfoxides. Chemistry 2020; 26:10348-10354. [PMID: 32428263 DOI: 10.1002/chem.202001815] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 05/10/2020] [Indexed: 12/18/2022]
Abstract
Herein, we describe a selective late-stage deoxygenation of sulfoxides based on a novel application of chlorosulfonium salts and demonstrate a new process using these species generated in situ from sulfoxides as the source of electrophilic chlorine. The use of highly nucleophilic 1,3,5-trimethoxybenzene (TMB) as the reducing agent is described for the first time and applied in the deoxygenation of simple and functionalized sulfoxides. The method is easy to handle, economic, suitable for gram-scale operations, and readily applied for poly-functionalized molecules, as demonstrated with more than 45 examples, including commercial medicines and analogues. We also report the results of competition experiments that define the more reactive sulfoxide and we present a mechanistic proposal based on substrate and product observations.
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Affiliation(s)
- Paola Acosta-Guzmán
- Laboratory of Organic Synthesis, Bio and Organocatalysis, Chemistry Department, Universidad de los Andes, Cra 1 No. 18A-12 Q:305, Bogota, 111711, Colombia
| | - Camilo Mahecha-Mahecha
- Laboratory of Organic Synthesis, Bio and Organocatalysis, Chemistry Department, Universidad de los Andes, Cra 1 No. 18A-12 Q:305, Bogota, 111711, Colombia
| | - Diego Gamba-Sánchez
- Laboratory of Organic Synthesis, Bio and Organocatalysis, Chemistry Department, Universidad de los Andes, Cra 1 No. 18A-12 Q:305, Bogota, 111711, Colombia
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209
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The catalytic mechanism of sulfoxide synthases. Curr Opin Chem Biol 2020; 59:111-118. [PMID: 32726707 DOI: 10.1016/j.cbpa.2020.06.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 06/09/2020] [Accepted: 06/17/2020] [Indexed: 02/06/2023]
Abstract
Sulfoxide synthases are non-heme iron enzymes that catalyze oxidative carbonsulfur bond formation in the biosynthesis of thiohistidines such as ergothioneine and ovothiol. The catalytic mechanism of these enzymes has been studied by protein crystallography, steady-state kinetics, non-natural amino acid incorporation and computational modeling. This review discusses the current status of this research and also highlights similarities between the CS bond forming activity of sulfoxide synthases with that of synthetic coordination compounds.
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210
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Vinogradov AA, Suga H. Introduction to Thiopeptides: Biological Activity, Biosynthesis, and Strategies for Functional Reprogramming. Cell Chem Biol 2020; 27:1032-1051. [PMID: 32698017 DOI: 10.1016/j.chembiol.2020.07.003] [Citation(s) in RCA: 59] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Revised: 06/21/2020] [Accepted: 07/01/2020] [Indexed: 12/16/2022]
Abstract
Thiopeptides (also known as thiazolyl peptides) are structurally complex natural products with rich biological activities. Known for over 70 years for potent killing of Gram-positive bacteria, thiopeptides are experiencing a resurgence of interest in the last decade, primarily brought about by the genomic revolution of the 21st century. Every area of thiopeptide research-from elucidating their biological function and biosynthesis to expanding their structural diversity through genome mining-has made great strides in recent years. These advances lay the foundation for and inspire novel strategies for thiopeptide engineering. Accordingly, a number of diverse approaches are being actively pursued in the hope of developing the next generation of natural-product-inspired therapeutics. Here, we review the contemporary understanding of thiopeptide biological activities, biosynthetic pathways, and approaches to structural and functional reprogramming, with a special focus on the latter.
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Affiliation(s)
- Alexander A Vinogradov
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.
| | - Hiroaki Suga
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.
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211
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Liu C, Chen D, Fu Y, Wang F, Luo J, Huang S. Sulfoxide Reduction/C(sp 3)-S Metathesis Cascade in Ionic Liquid. Org Lett 2020; 22:5701-5705. [PMID: 32614190 DOI: 10.1021/acs.orglett.0c02089] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A sulfoxide reduction/C-S bond metathesis cascade between sulfoxides and alkyl bromides has been developed to access high-value sulfides without the use of any catalysts or bases. In this cascade, classical Kornblum oxidation is employed to reduce sulfoxides with alkyl bromides in ionic liquid. This protocol features high functional tolerance, mild conditions, promising scalability, and sustainable solvents.
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Affiliation(s)
- Chenjing Liu
- Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-Forest Biomass, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Jiangsu Key Lab of Biomass-Based Green Fuels and Chemicals, College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, People's Republic of China
| | - Dengfeng Chen
- Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-Forest Biomass, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Jiangsu Key Lab of Biomass-Based Green Fuels and Chemicals, College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, People's Republic of China
| | - Yuanyuan Fu
- Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-Forest Biomass, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Jiangsu Key Lab of Biomass-Based Green Fuels and Chemicals, College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, People's Republic of China
| | - Fei Wang
- Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-Forest Biomass, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Jiangsu Key Lab of Biomass-Based Green Fuels and Chemicals, College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, People's Republic of China
| | - Jinyue Luo
- Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-Forest Biomass, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Jiangsu Key Lab of Biomass-Based Green Fuels and Chemicals, College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, People's Republic of China
| | - Shenlin Huang
- Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-Forest Biomass, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Jiangsu Key Lab of Biomass-Based Green Fuels and Chemicals, College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, People's Republic of China
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212
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Huang A, Guo X, Li P, Li W. Recent Advances in Catalytic Asymmetric Reactions of Thiazolones, Rhodanines and Their Derivatives. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000592] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Anqi Huang
- Department of Medicinal ChemistrySchool of PharmacyQingdao University 38 Dengzhou Road Qingdao Shandong 266021 People's Republic of China
| | - Xing Guo
- Department of ChemistryCollege of ScienceSouthern University of Science and Technology 1088 Xueyuan Blvd., Nanshan District Shenzhen Guangdong 518055 People's Republic of China
| | - Pengfei Li
- Department of ChemistryCollege of ScienceSouthern University of Science and Technology 1088 Xueyuan Blvd., Nanshan District Shenzhen Guangdong 518055 People's Republic of China
- Shenzhen Key Laboratory of Marine Archaea Geo-OmicsSouthern University of Science and Technology
| | - Wenjun Li
- Department of Medicinal ChemistrySchool of PharmacyQingdao University 38 Dengzhou Road Qingdao Shandong 266021 People's Republic of China
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213
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Flückger S, Igareta NV, Seebeck FP. Convergent Evolution of Fungal Cysteine Dioxygenases. Chembiochem 2020; 21:3082-3086. [PMID: 32543095 DOI: 10.1002/cbic.202000317] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 06/11/2020] [Indexed: 12/16/2022]
Abstract
Cupin-type cysteine dioxygenases (CDOs) are non-heme iron enzymes that occur in animals, plants, bacteria and in filamentous fungi. In this report, we show that agaricomycetes contain an entirely unrelated type of CDO that emerged by convergent evolution from enzymes involved in the biosynthesis of ergothioneine. The activity of this CDO type is dependent on the ergothioneine precursor N-α-trimethylhistidine. The metabolic link between ergothioneine production and cysteine oxidation suggests that the two processes might be part of the same chemical response in fungi, for example against oxidative stress.
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Affiliation(s)
- Sebastian Flückger
- Department for Chemistry, University of Basel, Mattenstrasse 24a, 4002, Basel, Switzerland
| | - Nico V Igareta
- Department for Chemistry, University of Basel, Mattenstrasse 24a, 4002, Basel, Switzerland
| | - Florian P Seebeck
- Department for Chemistry, University of Basel, Mattenstrasse 24a, 4002, Basel, Switzerland
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214
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Trottmann F, Ishida K, Franke J, Stanišić A, Ishida‐Ito M, Kries H, Pohnert G, Hertweck C. Sulfonium Acids Loaded onto an Unusual Thiotemplate Assembly Line Construct the Cyclopropanol Warhead of a
Burkholderia
Virulence Factor. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202003958] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Felix Trottmann
- Department of Biomolecular Chemistry Leibniz Institute for Natural Product Research and Infection Biology (HKI) Beutenbergstrasse 11a 07745 Jena Germany
| | - Keishi Ishida
- Department of Biomolecular Chemistry Leibniz Institute for Natural Product Research and Infection Biology (HKI) Beutenbergstrasse 11a 07745 Jena Germany
| | - Jakob Franke
- Institute of Botany Leibniz University Hannover 30419 Hannover Germany
| | - Aleksa Stanišić
- Junior Research Group Biosynthetic Design of Natural Products Leibniz Institute for Natural Product Research and Infection Biology (HKI) Beutenbergstrasse 11a 07745 Jena Germany
| | - Mie Ishida‐Ito
- Department of Biomolecular Chemistry Leibniz Institute for Natural Product Research and Infection Biology (HKI) Beutenbergstrasse 11a 07745 Jena Germany
| | - Hajo Kries
- Junior Research Group Biosynthetic Design of Natural Products Leibniz Institute for Natural Product Research and Infection Biology (HKI) Beutenbergstrasse 11a 07745 Jena Germany
| | - Georg Pohnert
- Institute for Inorganic and Analytical Chemistry Friedrich Schiller University Jena 07743 Jena Germany
| | - Christian Hertweck
- Department of Biomolecular Chemistry Leibniz Institute for Natural Product Research and Infection Biology (HKI) Beutenbergstrasse 11a 07745 Jena Germany
- Natural Product Chemistry Faculty of Biological Sciences Friedrich Schiller University Jena 07743 Jena Germany
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215
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Trottmann F, Ishida K, Franke J, Stanišić A, Ishida-Ito M, Kries H, Pohnert G, Hertweck C. Sulfonium Acids Loaded onto an Unusual Thiotemplate Assembly Line Construct the Cyclopropanol Warhead of a Burkholderia Virulence Factor. Angew Chem Int Ed Engl 2020; 59:13511-13515. [PMID: 32314848 PMCID: PMC7496086 DOI: 10.1002/anie.202003958] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Indexed: 12/13/2022]
Abstract
Pathogenic bacteria of the Burkholderia pseudomallei group cause severe infectious diseases such as glanders and melioidosis. Malleicyprols were identified as important bacterial virulence factors, yet the biosynthetic origin of their cyclopropanol warhead has remained enigmatic. By a combination of mutational analysis and metabolomics we found that sulfonium acids, dimethylsulfoniumpropionate (DMSP) and gonyol, known as osmolytes and as crucial components in the global organosulfur cycle, are key intermediates en route to the cyclopropanol unit. Functional genetics and in vitro analyses uncover a specialized pathway to DMSP involving a rare prokaryotic SET‐domain methyltransferase for a cryptic methylation, and show that DMSP is loaded onto the NRPS‐PKS hybrid assembly line by an adenylation domain dedicated to zwitterionic starter units. Then, the megasynthase transforms DMSP into gonyol, as demonstrated by heterologous pathway reconstitution in E. coli.
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Affiliation(s)
- Felix Trottmann
- Department of Biomolecular Chemistry, Leibniz Institute for Natural Product Research and Infection Biology (HKI), Beutenbergstrasse 11a, 07745, Jena, Germany
| | - Keishi Ishida
- Department of Biomolecular Chemistry, Leibniz Institute for Natural Product Research and Infection Biology (HKI), Beutenbergstrasse 11a, 07745, Jena, Germany
| | - Jakob Franke
- Institute of Botany, Leibniz University Hannover, 30419, Hannover, Germany
| | - Aleksa Stanišić
- Junior Research Group Biosynthetic Design of Natural Products, Leibniz Institute for Natural Product Research and Infection Biology (HKI), Beutenbergstrasse 11a, 07745, Jena, Germany
| | - Mie Ishida-Ito
- Department of Biomolecular Chemistry, Leibniz Institute for Natural Product Research and Infection Biology (HKI), Beutenbergstrasse 11a, 07745, Jena, Germany
| | - Hajo Kries
- Junior Research Group Biosynthetic Design of Natural Products, Leibniz Institute for Natural Product Research and Infection Biology (HKI), Beutenbergstrasse 11a, 07745, Jena, Germany
| | - Georg Pohnert
- Institute for Inorganic and Analytical Chemistry, Friedrich Schiller University Jena, 07743, Jena, Germany
| | - Christian Hertweck
- Department of Biomolecular Chemistry, Leibniz Institute for Natural Product Research and Infection Biology (HKI), Beutenbergstrasse 11a, 07745, Jena, Germany.,Natural Product Chemistry, Faculty of Biological Sciences, Friedrich Schiller University Jena, 07743, Jena, Germany
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216
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Bi Y, Wang Z, Tian Y, Fan H, Huang S, Lu Y, Jin Z. Highly Efficient Regioselective Decanoylation of Hyperoside Using Nanobiocatalyst of Fe 3O 4@PDA- Thermomyces lanuginosus Lipase: Insights of Kinetics and Stability Evaluation. Front Bioeng Biotechnol 2020; 8:485. [PMID: 32548099 PMCID: PMC7270339 DOI: 10.3389/fbioe.2020.00485] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Accepted: 04/27/2020] [Indexed: 12/24/2022] Open
Abstract
The immobilization of Thermomyces lanuginosus lipase on polydopamine-functionalized Fe3O4 magnetic nanoparticles (Fe3O4@PDA-TLL) as a nanobiocatalyst was successfully performed for the first time, and the Fe3O4@PDA-TLL was used for regioselective acylation of natural hyperoside with vinyl decanoate. The effects of several crucial factors, such as the reaction solvent, substrate molar ratio, temperature, and immobilized enzyme dosage, were investigated. Under optimum conditions, the reaction rate, 6″-regioselectivity, and maximum substrate conversion were as high as 12.6 mM/h, 100%, and 100%, respectively. An operational stability study demonstrated that the immobilized enzyme could maintain 90.1% of its initial maximum conversion even after reusing it five times. In addition, further investigations on the kinetic parameters, like Vmax, Km, Vmax/Km, and Ea, also revealed that the biocompatible Fe3O4@PDA could act as an alternative carrier for the immobilization of different enzymes.
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Affiliation(s)
- Yanhong Bi
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, China.,School of Life Sciences and Food Engineering, Huaiyin Institute of Technology, Huai'an, China
| | - Zhaoyu Wang
- School of Life Sciences and Food Engineering, Huaiyin Institute of Technology, Huai'an, China
| | - Yaoqi Tian
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Haoran Fan
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Shuo Huang
- School of Life Sciences and Food Engineering, Huaiyin Institute of Technology, Huai'an, China
| | - Yihui Lu
- School of Life Sciences and Food Engineering, Huaiyin Institute of Technology, Huai'an, China
| | - Zhengyu Jin
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, China
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217
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Srivastava V, Singh PK, Srivastava A, Singh PP. Recent application of visible-light induced radicals in C-S bond formation. RSC Adv 2020; 10:20046-20056. [PMID: 35520400 PMCID: PMC9054237 DOI: 10.1039/d0ra03086d] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Accepted: 04/29/2020] [Indexed: 01/20/2023] Open
Abstract
The sulphur centered radicals, produced from various organic compounds, in high efficiency by single-electron-transfer (SET) oxidation. These radicals are highly reactive intermediates having various applications in the construction of organosulphur compounds in the field of synthetic organic chemistry. These S-centred radical-mediated organic transformations have been achieved using photoredox catalysts, including organic dyes and transition metal catalysts, as well as in the absence of any catalyst. Compared with previous methods, photoredox catalysis is inexpensive and features the advantages of being environmentally benign, highly efficient and easy to use. This review focuses on recent developments in the photocatalyzed carbon-sulphur bond formation.
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Affiliation(s)
- Vishal Srivastava
- Department of Chemistry, CMP Degree College, University of Allahabad Prayagraj 211002 India
| | - Pravin K Singh
- Department of Chemistry, CMP Degree College, University of Allahabad Prayagraj 211002 India
| | - Arjita Srivastava
- Department of Chemistry, CMP Degree College, University of Allahabad Prayagraj 211002 India
| | - Praveen P Singh
- Department of Chemistry, United College of Engineering & Research Naini Prayagraj 211010 India
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218
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Wang G, Khan R, Liu H, Shen G, Yang F, Chen J, Zhou Y, Fan B. Cobalt-Catalyzed Ligand-Controlled Divergent Regioselective Reactions of 1,6-Enynes with Thiols. Organometallics 2020. [DOI: 10.1021/acs.organomet.0c00179] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Gaowei Wang
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, Yunnan Minzu University, State Ethnic Affairs Commission & Ministry of Education, Kunming 650500, China
| | - Ruhima Khan
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, Yunnan Minzu University, State Ethnic Affairs Commission & Ministry of Education, Kunming 650500, China
| | - Haojie Liu
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, Yunnan Minzu University, State Ethnic Affairs Commission & Ministry of Education, Kunming 650500, China
| | - Guoli Shen
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, Yunnan Minzu University, State Ethnic Affairs Commission & Ministry of Education, Kunming 650500, China
| | - Fan Yang
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, Yunnan Minzu University, State Ethnic Affairs Commission & Ministry of Education, Kunming 650500, China
| | - Jingchao Chen
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, Yunnan Minzu University, State Ethnic Affairs Commission & Ministry of Education, Kunming 650500, China
| | - Yongyun Zhou
- School of Chemistry and Environment, Yunnan Minzu University, Kunming 650500, China
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, Yunnan Minzu University, State Ethnic Affairs Commission & Ministry of Education, Kunming 650500, China
| | - Baomin Fan
- School of Chemistry and Environment, Yunnan Minzu University, Kunming 650500, China
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, Yunnan Minzu University, State Ethnic Affairs Commission & Ministry of Education, Kunming 650500, China
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219
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Wang JH, Lei T, Wu HL, Nan XL, Li XB, Chen B, Tung CH, Wu LZ. Thiol Activation toward Selective Thiolation of Aromatic C-H Bond. Org Lett 2020; 22:3804-3809. [PMID: 32343142 DOI: 10.1021/acs.orglett.0c01050] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Direct C-S bond coupling is an attractive way to construct aryl sulfur ether, a building block for a variety of biological active molecules. Herein, we disclose an effective model for regioselective thiolation of the aromatic C-H bond by thiol activation instead of arene activation. Strikingly, this method has been applied into anisole derivatives that are not available in the arene activation approach to forge a single thioether isomer with high reactivity.
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Affiliation(s)
- Jing-Hao Wang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P.R. China.,School of Future Technology, University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Tao Lei
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P.R. China.,School of Future Technology, University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Hao-Lin Wu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P.R. China.,School of Future Technology, University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Xiao-Lei Nan
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P.R. China.,School of Future Technology, University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Xu-Bing Li
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P.R. China.,School of Future Technology, University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Bin Chen
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P.R. China.,School of Future Technology, University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Chen-Ho Tung
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P.R. China.,School of Future Technology, University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Li-Zhu Wu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P.R. China.,School of Future Technology, University of Chinese Academy of Sciences, Beijing 100049, P.R. China
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220
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Abstract
Bonds between sulfur atoms are prevalent in natural products, peptides, and proteins. Disulfide bonds have a distinct chromophore. The wavelength of their maximal absorbance varies widely, from 250 to 500 nm. Here, we demonstrate that this wavelength derives from stereoelectronic effects and is predictable using quantum chemistry. We also provide a sinusoidal equation, analogous to the Karplus equation, that relates the absorbance maximum and the C-S-S-C dihedral angle. These insights provide a facile means to characterize important attributes of disulfide bonds and to design disulfides with specified photophysical properties.
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Affiliation(s)
- Henry R. Kilgore
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Ronald T. Raines
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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221
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Xu T, Cao T, Yang M, Xu R, Nie X, Liao S. Decarboxylative Thiolation of Redox-Active Esters to Thioesters by Merging Photoredox and Copper Catalysis. Org Lett 2020; 22:3692-3696. [DOI: 10.1021/acs.orglett.0c01180] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Tianxiao Xu
- Key Laboratory of Molecule Synthesis and Function Discovery, College of Chemistry, Fuzhou University, 2 Xueyuan Road, Fuzhou 350116, P. R. China
| | - Tianpeng Cao
- Key Laboratory of Molecule Synthesis and Function Discovery, College of Chemistry, Fuzhou University, 2 Xueyuan Road, Fuzhou 350116, P. R. China
| | - Mingcheng Yang
- Key Laboratory of Molecule Synthesis and Function Discovery, College of Chemistry, Fuzhou University, 2 Xueyuan Road, Fuzhou 350116, P. R. China
| | - Ruting Xu
- Key Laboratory of Molecule Synthesis and Function Discovery, College of Chemistry, Fuzhou University, 2 Xueyuan Road, Fuzhou 350116, P. R. China
| | - Xingliang Nie
- Key Laboratory of Molecule Synthesis and Function Discovery, College of Chemistry, Fuzhou University, 2 Xueyuan Road, Fuzhou 350116, P. R. China
| | - Saihu Liao
- Key Laboratory of Molecule Synthesis and Function Discovery, College of Chemistry, Fuzhou University, 2 Xueyuan Road, Fuzhou 350116, P. R. China
- Beijing National Laboratory for Molecular Sciences (BNLMS), Beijing 100190, P. R. China
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222
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Ye ZP, Xia PJ, Liu F, Hu YZ, Song D, Xiao JA, Huang P, Xiang HY, Chen XQ, Yang H. Visible-Light-Induced, Catalyst-Free Radical Cross-Coupling Cyclization of N-Allylbromodifluoroacetamides with Disulfides or Diselenides. J Org Chem 2020; 85:5670-5682. [PMID: 32240591 DOI: 10.1021/acs.joc.9b03490] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A visible-light-induced, catalyst-free radical cross-coupling cyclization of diselenides or disulfides with N-allylbromodifluoroacetamide has been developed. This developed protocol exhibits good functional group tolerance and affords a variety of 4-thio- and 4-seleno-substituted 3,3-difluoro-γ-lactams in moderate to good yields. Based on control experiments, a plausible radical-radical cross-coupling pathway is proposed.
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Affiliation(s)
- Zhi-Peng Ye
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Peng-Ju Xia
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Fang Liu
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Yuan-Zhuo Hu
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Dan Song
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Jun-An Xiao
- College of Chemistry and Materials Science, Guangxi Teachers Education University, Nanning, Guangxi 530001, P. R. China
| | - Ping Huang
- Technology Center of Hunan Provincial Tobacco Company, 386 Labor Middle Road, Changsha 410019, China
| | - Hao-Yue Xiang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Xiao-Qing Chen
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China.,Key Laboratory of Hunan Province for Water Environment and Agriculture Product Safety, Central South University, Changsha 410083, P. R. China
| | - Hua Yang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China.,Key Laboratory of Hunan Province for Water Environment and Agriculture Product Safety, Central South University, Changsha 410083, P. R. China
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223
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Reconstitution of polythioamide antibiotic backbone formation reveals unusual thiotemplated assembly strategy. Proc Natl Acad Sci U S A 2020; 117:8850-8858. [PMID: 32265283 PMCID: PMC7183216 DOI: 10.1073/pnas.1918759117] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Nonribosomal peptides (NRPs) are a vast class of natural products and an important source of therapeutics. Typically, these secondary metabolites are assembled by NRP synthetases (NRPSs) that function on substrates covalently linked to the enzyme by a thioester, in a process known as thiotemplated biosynthesis. Although NRPS-independent assembly pathways are known, all are nonthiotemplated. Here we report an NRPS-independent yet thiotemplated pathway for NRP biosynthesis and demonstrate that members of the ATP-grasp and cysteine protease families form the β-peptide backbone of an antibiotic. Armed with this knowledge, we provide genomic evidence that this noncanonical assembly pathway is widespread in bacteria. Our results will inspire future genome mining efforts for the discovery of potential therapeutics that otherwise would be overlooked. Closthioamide (CTA) is a rare example of a thioamide-containing nonribosomal peptide and is one of only a handful of secondary metabolites described from obligately anaerobic bacteria. Although the biosynthetic gene cluster responsible for CTA production and the thioamide synthetase that catalyzes sulfur incorporation were recently discovered, the logic for peptide backbone assembly has remained a mystery. Here, through the use of in vitro biochemical assays, we demonstrate that the amide backbone of CTA is assembled in an unusual thiotemplated pathway involving the cooperation of a transacylating member of the papain-like cysteine protease family and an iteratively acting ATP-grasp protein. Using the ATP-grasp protein as a bioinformatic handle, we identified hundreds of such thiotemplated yet nonribosomal peptide synthetase (NRPS)-independent biosynthetic gene clusters across diverse bacterial phyla. The data presented herein not only clarify the pathway for the biosynthesis of CTA, but also provide a foundation for the discovery of additional secondary metabolites produced by noncanonical biosynthetic pathways.
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224
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Pan C, Kuranaga T, Liu C, Lu S, Shinzato N, Kakeya H. Thioamycolamides A-E, Sulfur-Containing Cycliclipopeptides Produced by the Rare Actinomycete Amycolatopsis sp. Org Lett 2020; 22:3014-3017. [PMID: 32239955 DOI: 10.1021/acs.orglett.0c00776] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A series of novel sulfur-containing cycliclipopeptides named thioamycolamides A-E, with thiazoline, thioether rings, and fatty acid moieties, were identified from the culture broth of the rare actinomycete Amycolatopsis sp. 26-4. The planar structural elucidation was accomplished by HRMS and 1D/2D NMR spectroscopic data analyses. The absolute configurations were unambiguously determined by Marfey's method, CD spectroscopy, and synthesis of partial structures. Moreover, their growth inhibitory activities against human tumor cell lines were investigated.
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Affiliation(s)
- Chengqian Pan
- Department of System Chemotherapy and Molecular Sciences, Division of Bioinformatics and Chemical Genomics, Graduate School of Pharmaceutical Sciences, Kyoto University, Kyoto 606-8501, Japan
| | - Takefumi Kuranaga
- Department of System Chemotherapy and Molecular Sciences, Division of Bioinformatics and Chemical Genomics, Graduate School of Pharmaceutical Sciences, Kyoto University, Kyoto 606-8501, Japan
| | - Chao Liu
- Department of System Chemotherapy and Molecular Sciences, Division of Bioinformatics and Chemical Genomics, Graduate School of Pharmaceutical Sciences, Kyoto University, Kyoto 606-8501, Japan
| | - Shan Lu
- Department of System Chemotherapy and Molecular Sciences, Division of Bioinformatics and Chemical Genomics, Graduate School of Pharmaceutical Sciences, Kyoto University, Kyoto 606-8501, Japan
| | - Naoya Shinzato
- Tropical Biosphere Research Center, University of the Ryukyus, Okinawa 903-0213, Japan
| | - Hideaki Kakeya
- Department of System Chemotherapy and Molecular Sciences, Division of Bioinformatics and Chemical Genomics, Graduate School of Pharmaceutical Sciences, Kyoto University, Kyoto 606-8501, Japan
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225
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Le Bescont J, Breton-Patient C, Piguel S. Unconventional Reactivity with DABCO-Bis
(sulfur dioxide): C-H Bond Sulfenylation of Imidazopyridines. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000112] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Julie Le Bescont
- CNRS, Inserm; Université Paris-Saclay; 91405 Orsay France
- CNRS, Inserm; Institut Curie; 91402 Orsay France
| | - Chloé Breton-Patient
- CNRS, Inserm; Université Paris-Saclay; 91405 Orsay France
- CNRS, Inserm; Institut Curie; 91402 Orsay France
| | - Sandrine Piguel
- CNRS, Inserm; Université Paris-Saclay; 91405 Orsay France
- CNRS, Inserm; Institut Curie; 91402 Orsay France
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226
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Transition-metal and base-free thioannulation of propynamides with sodium sulfide and dichloromethane for the selective synthesis of 1,3-thiazin-4-ones and thiazolidine-4-ones. Tetrahedron 2020. [DOI: 10.1016/j.tet.2020.131021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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227
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Kondoh A, Ishikawa S, Terada M. Development of Chiral Ureates as Chiral Strong Brønsted Base Catalysts. J Am Chem Soc 2020; 142:3724-3728. [DOI: 10.1021/jacs.9b13922] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Azusa Kondoh
- Research and Analytical Center for Giant Molecules, Graduate School of Science, Tohoku University, Aoba-ku, Sendai 980-8578, Japan
| | - Sho Ishikawa
- Department of Chemistry, Graduate School of Science, Tohoku University, Aoba-ku, Sendai 980-8578, Japan
| | - Masahiro Terada
- Department of Chemistry, Graduate School of Science, Tohoku University, Aoba-ku, Sendai 980-8578, Japan
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228
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Meng L, Ngai KY, Chang X, Lin Z, Wang J. Cu(I)-Catalyzed Enantioselective Alkynylation of Thiochromones. Org Lett 2020; 22:1155-1159. [PMID: 31961693 DOI: 10.1021/acs.orglett.0c00005] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
A highly efficient asymmetric synthesis of chiral thiochromanones is developed via Cu(I)/phosphoramidite catalyzed asymmetric alkynylation of thiochromones under mild reaction conditions. The catalyst system is tolerant of various thiochromone precursors and terminal alkynes. The established asymmetric transformation provides different enatiomeric-enriched thiochromanones with more molecular complexity and enables access to chiral thioflavanones, a subgroup of flavonoid by further functionalization.
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Affiliation(s)
- Ling Meng
- Shenzhen Grubbs Institute and Department of Chemistry , Southern University of Science and Technology , Shenzhen 518055 , China.,Department of Chemistry , The Hong Kong University of Science & Technology , Clear Water Bay, Kowloon , Hong Kong
| | - Ka Yan Ngai
- Shenzhen Grubbs Institute and Department of Chemistry , Southern University of Science and Technology , Shenzhen 518055 , China
| | - Xiaoyong Chang
- Shenzhen Grubbs Institute and Department of Chemistry , Southern University of Science and Technology , Shenzhen 518055 , China
| | - Zhenyang Lin
- Department of Chemistry , The Hong Kong University of Science & Technology , Clear Water Bay, Kowloon , Hong Kong
| | - Jun Wang
- Shenzhen Grubbs Institute and Department of Chemistry , Southern University of Science and Technology , Shenzhen 518055 , China
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229
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Sethi A, Singh RP, Pathak R, Shukla D, Amandeep, Yadav P. One pot synthesis of novel pregnane-sulphur prodrugs, spectroscopic investigation, conformational analysis, chemical reactivity, Fukui function and their mathematical model. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2019.127136] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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230
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One-pot efficient synthesis of β-aryl-β-sulfanyl ketones via a four-component reaction of alkyl halides, thiourea benzaldehydes and acetophenones. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2019.151531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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231
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Morita I, Mori T, Mitsuhashi T, Hoshino S, Taniguchi Y, Kikuchi T, Nagae K, Nasu N, Fujita M, Ohwada T, Abe I. Exploiting a C–N Bond Forming Cytochrome P450 Monooxygenase for C–S Bond Formation. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201916269] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Iori Morita
- Graduate School of Pharmaceutical Sciences The University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo 113-0033 Japan
| | - Takahiro Mori
- Graduate School of Pharmaceutical Sciences The University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo 113-0033 Japan
- Collaborative Research Institute for Innovative Microbiology The University of Tokyo 1-1-1 Yayoi Bunkyo-ku Tokyo 113-8657 Japan
| | - Takaaki Mitsuhashi
- Graduate School of Pharmaceutical Sciences The University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo 113-0033 Japan
| | - Shotaro Hoshino
- Graduate School of Pharmaceutical Sciences The University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo 113-0033 Japan
| | - Yoshimasa Taniguchi
- Central Laboratories for Key Technologies Kirin Holdings Co. Ltd. 1-13-5, Fukuura Kana-zawa-ku Yokohama-shi Kanagawa 236-0004 Japan
| | - Takashi Kikuchi
- Rigaku Corporation 3-9-12 Matsubara-cho, Akishima-shi Tokyo 196-8666 Japan
| | - Kei Nagae
- Nissan Chemical Corporation 2-10-1 Tsuboi-nishi, Funabashi-shi Chiba 274-8507 Japan
| | - Norihiro Nasu
- Mitsui Chemical Analysis & Consulting Service, Inc. 580-32 Nagaura, Sodegaura-city Chiba 299-0265 Japan
| | - Makoto Fujita
- Department of Applied Chemistry Graduate School of Engineering The University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo 113-8656 Japan
- Division of Advanced Molecular Science Institute for Molecular Science National Institutes of Natural Sciences 5-1 Higashiyama Myodaiji, Okazaki 444-8787 Japan
| | - Tomohiko Ohwada
- Graduate School of Pharmaceutical Sciences The University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo 113-0033 Japan
| | - Ikuro Abe
- Graduate School of Pharmaceutical Sciences The University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo 113-0033 Japan
- Collaborative Research Institute for Innovative Microbiology The University of Tokyo 1-1-1 Yayoi Bunkyo-ku Tokyo 113-8657 Japan
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232
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Morita I, Mori T, Mitsuhashi T, Hoshino S, Taniguchi Y, Kikuchi T, Nagae K, Nasu N, Fujita M, Ohwada T, Abe I. Exploiting a C-N Bond Forming Cytochrome P450 Monooxygenase for C-S Bond Formation. Angew Chem Int Ed Engl 2020; 59:3988-3993. [PMID: 31886618 DOI: 10.1002/anie.201916269] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Indexed: 01/01/2023]
Abstract
C-S bond formation reactions are widely distributed in the biosynthesis of biologically active molecules, and thus have received much attention over the past decades. Herein, we report intramolecular C-S bond formation by a P450 monooxygenase, TleB, which normally catalyzes a C-N bond formation in teleocidin biosynthesis. Based on the proposed reaction mechanism of TleB, a thiol-substituted substrate analogue was synthesized and tested in the enzyme reaction, which afforded the unprecedented sulfur-containing thio-indolactam V, in addition to an unusual indole-fused 6/5/8-tricyclic product whose structure was determined by the crystalline sponge method. Interestingly, conformational analysis revealed that the SOFA conformation is stable in thio-indolactam V, in sharp contrast to the major TWIST form in indolactam V, resulting in differences in their biological activities.
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Affiliation(s)
- Iori Morita
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Takahiro Mori
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.,Collaborative Research Institute for Innovative Microbiology, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Takaaki Mitsuhashi
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Shotaro Hoshino
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Yoshimasa Taniguchi
- Central Laboratories for Key Technologies, Kirin Holdings Co. Ltd., 1-13-5, Fukuura Kana-zawa-ku, Yokohama-shi, Kanagawa, 236-0004, Japan
| | - Takashi Kikuchi
- Rigaku Corporation, 3-9-12 Matsubara-cho, Akishima-shi, Tokyo, 196-8666, Japan
| | - Kei Nagae
- Nissan Chemical Corporation, 2-10-1 Tsuboi-nishi, Funabashi-shi, Chiba, 274-8507, Japan
| | - Norihiro Nasu
- Mitsui Chemical Analysis & Consulting Service, Inc., 580-32 Nagaura, Sodegaura-city, Chiba, 299-0265, Japan
| | - Makoto Fujita
- Department of Applied Chemistry, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan.,Division of Advanced Molecular Science, Institute for Molecular Science, National Institutes of Natural Sciences, 5-1 Higashiyama, Myodaiji, Okazaki, 444-8787, Japan
| | - Tomohiko Ohwada
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Ikuro Abe
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.,Collaborative Research Institute for Innovative Microbiology, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
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233
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Fan J, Zhao Y, Zhang J, Xie M, Zhang Y. Acid-Controlled Access to β-Sulfenyl Ketones and α,β-Disulfonyl Ketones by Pummerer Reaction of β-Keto Sulfones and Sulfoxides. J Org Chem 2020; 85:691-701. [PMID: 31790239 DOI: 10.1021/acs.joc.9b02766] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A convenient acid-mediated reaction of β-keto sulfones with sulfoxides under metal-free conditions has been developed, thereby delivering the acid-controlled synthesis of β-sulfenyl ketones and α,β-disulfonyl ketones in good to excellent yields. The mechanism of the transformations has been studied carefully, which suggested the involvement of a radical process in the formation of α,β-disulfonyl ketones.
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Affiliation(s)
- Jian Fan
- Key Laboratory of Functional Molecular Solids (Ministry of Education), Anhui Key Laboratory of Molecular Based Materials, College of Chemistry and Materials Science , Anhui Normal University , Wuhu 241002 , China
| | - Yiming Zhao
- Key Laboratory of Functional Molecular Solids (Ministry of Education), Anhui Key Laboratory of Molecular Based Materials, College of Chemistry and Materials Science , Anhui Normal University , Wuhu 241002 , China
| | - Jitan Zhang
- Key Laboratory of Functional Molecular Solids (Ministry of Education), Anhui Key Laboratory of Molecular Based Materials, College of Chemistry and Materials Science , Anhui Normal University , Wuhu 241002 , China
| | - Meihua Xie
- Key Laboratory of Functional Molecular Solids (Ministry of Education), Anhui Key Laboratory of Molecular Based Materials, College of Chemistry and Materials Science , Anhui Normal University , Wuhu 241002 , China
| | - Yuzhong Zhang
- Key Laboratory of Functional Molecular Solids (Ministry of Education), Anhui Key Laboratory of Molecular Based Materials, College of Chemistry and Materials Science , Anhui Normal University , Wuhu 241002 , China
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234
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Yavari I, Shaabanzadeh S. Electrochemical Synthesis of β-Ketosulfones from Switchable Starting Materials. Org Lett 2020; 22:464-467. [PMID: 31910023 DOI: 10.1021/acs.orglett.9b04221] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
A synthesis of β-ketosulfones via sulfination of aryl methyl ketones and aryl acetylenes with sodium sulfinates under mild electrochemical conditions, in moderate to good chemical yields, is described. In particular, an electrochemical sulfination reaction of alkynes with sulfinate salts has never been explored. An environmentally friendly characteristic of this reaction is that it uses electricity as a valuable energy source for electrochemical synthesis of β-ketosulfones. This strategy is more convenient and practical compared to previous approaches.
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Affiliation(s)
- Issa Yavari
- Department of Chemistry , Tarbiat Modares University , P.O. Box 14115-175, Tehran 14117-13116 , Iran
| | - Sina Shaabanzadeh
- Department of Chemistry , Tarbiat Modares University , P.O. Box 14115-175, Tehran 14117-13116 , Iran
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235
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Xu XM, Chen DM, Wang ZL. Recent advances in sulfenylation of C(sp3) H bond under transition metal-free conditions. CHINESE CHEM LETT 2020. [DOI: 10.1016/j.cclet.2019.05.048] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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236
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Yuan X, Tan X, Ding N, Liu Y, Li X, Zhao Z. NIS-promoted intermolecular bis-sulfenylation of allenamides via a two-step radical process: synthesis of 1,3-dithioethers. Org Chem Front 2020. [DOI: 10.1039/d0qo00690d] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The first report of NIS-promoted two-step radical addition of thiols to allenamides to provide an efficient route for accessing 1,3-dithioethers.
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Affiliation(s)
- Xiao Yuan
- Key Laboratory of Basic Chemistry of the State Ethnic Commission
- School of Chemistry and Environment
- Southwest Minzu University
- Chengdu 610041
- PR China
| | - Xiaoju Tan
- Key Laboratory of Basic Chemistry of the State Ethnic Commission
- School of Chemistry and Environment
- Southwest Minzu University
- Chengdu 610041
- PR China
| | - Na Ding
- Key Laboratory of Basic Chemistry of the State Ethnic Commission
- School of Chemistry and Environment
- Southwest Minzu University
- Chengdu 610041
- PR China
| | - Yongchun Liu
- Key Laboratory of Basic Chemistry of the State Ethnic Commission
- School of Chemistry and Environment
- Southwest Minzu University
- Chengdu 610041
- PR China
| | - Xiaoxiao Li
- Key Laboratory of Basic Chemistry of the State Ethnic Commission
- School of Chemistry and Environment
- Southwest Minzu University
- Chengdu 610041
- PR China
| | - Zhigang Zhao
- Key Laboratory of Basic Chemistry of the State Ethnic Commission
- School of Chemistry and Environment
- Southwest Minzu University
- Chengdu 610041
- PR China
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237
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Ali HS, Henchman RH, de Visser SP. Cross-linking of aromatic phenolate groups by cytochrome P450 enzymes: a model for the biosynthesis of vancomycin by OxyB. Org Biomol Chem 2020; 18:4610-4618. [DOI: 10.1039/d0ob01023e] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Aromatic cross-linking by cytochrome P450 enzymes was studied computationally. P450 Compound I rapidly abstracts two weak phenolic H-atoms that link up via a rate-determining C–O bond formation.
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Affiliation(s)
- Hafiz Saqib Ali
- Manchester Institute of Biotechnology
- The University of Manchester
- Manchester M1 7DN
- UK
- Department of Chemistry
| | - Richard H. Henchman
- Manchester Institute of Biotechnology
- The University of Manchester
- Manchester M1 7DN
- UK
- Department of Chemistry
| | - Sam P. de Visser
- Manchester Institute of Biotechnology
- The University of Manchester
- Manchester M1 7DN
- UK
- Department of Chemical Engineering and Analytical Science
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238
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Bhowmik A, Yadav M, Fernandes RA. Room temperature nickel-catalyzed cross-coupling of aryl-boronic acids with thiophenols: synthesis of diarylsulfides. Org Biomol Chem 2020; 18:2447-2458. [DOI: 10.1039/d0ob00244e] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A mild and easy to operate NiCl2/2,2′-bipyridine-catalyzed cross-coupling of thiophenols with arylboronic acids has been developed for the synthesis of symmetric and unsymmetric diarylsulfides at room temperature and in air.
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Affiliation(s)
- Amit Bhowmik
- Department of Chemistry
- Indian Institute of Technology Bombay Powai
- Mumbai 400076
- India
| | - Mahesh Yadav
- Department of Chemistry
- Indian Institute of Technology Bombay Powai
- Mumbai 400076
- India
| | - Rodney A. Fernandes
- Department of Chemistry
- Indian Institute of Technology Bombay Powai
- Mumbai 400076
- India
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239
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Wang N, Saidhareddy P, Jiang X. Construction of sulfur-containing moieties in the total synthesis of natural products. Nat Prod Rep 2020; 37:246-275. [DOI: 10.1039/c8np00093j] [Citation(s) in RCA: 221] [Impact Index Per Article: 55.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
This review surveys the total syntheses of sulfur-containing natural products where sulfur atoms are introduced with different sulfurization agents to construct related sulfur-containing moieties.
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Affiliation(s)
- Nengzhong Wang
- Shanghai Key Laboratory of Green Chemistry and Chemical Process
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
- P. R. China
| | - Puli Saidhareddy
- Shanghai Key Laboratory of Green Chemistry and Chemical Process
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
- P. R. China
| | - Xuefeng Jiang
- Shanghai Key Laboratory of Green Chemistry and Chemical Process
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
- P. R. China
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240
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Fernandes RA, Bhowmik A, Yadav SS. Advances in Cu and Ni-catalyzed Chan–Lam-type coupling: synthesis of diarylchalcogenides, Ar2–X (X = S, Se, Te). Org Biomol Chem 2020; 18:9583-9600. [DOI: 10.1039/d0ob02035d] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Advances in the Cu and Ni-catalyzed Chan–Lam-type coupling of aryl/heteroarylboronic acids with various chalcogen sources for diarylsulfide, diarylselenide and diaryltelluride synthesis are covered in this review.
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Affiliation(s)
- Rodney A. Fernandes
- Department of Chemistry
- Indian Institute of Technology Bombay Powai
- Mumbai 400076
- India
| | - Amit Bhowmik
- Department of Chemistry
- Indian Institute of Technology Bombay Powai
- Mumbai 400076
- India
| | - Sandhya S. Yadav
- Department of Chemistry
- Indian Institute of Technology Bombay Powai
- Mumbai 400076
- India
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241
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Xuan M, Lu C, Lin BL. C-S coupling with nitro group as leaving group via simple inorganic salt catalysis. CHINESE CHEM LETT 2020. [DOI: 10.1016/j.cclet.2019.07.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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242
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Delcaillau T, Bismuto A, Lian Z, Morandi B. Nickel‐katalysierte inter‐ und intramolekulare Arylthioether‐Metathese durch reversible Arylierung. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201910436] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Tristan Delcaillau
- Laboratorium für Organische ChemieETH Zürich Vladimir-Prelog-Weg 3, HCI 8093 Zürich Schweiz
- Max-Planck-Institut für Kohlenforschung Kaiser-Wihelm-Platz 1 45470 Mülheim an der Ruhr Deutschland
| | - Alessandro Bismuto
- Laboratorium für Organische ChemieETH Zürich Vladimir-Prelog-Weg 3, HCI 8093 Zürich Schweiz
| | - Zhong Lian
- Max-Planck-Institut für Kohlenforschung Kaiser-Wihelm-Platz 1 45470 Mülheim an der Ruhr Deutschland
| | - Bill Morandi
- Laboratorium für Organische ChemieETH Zürich Vladimir-Prelog-Weg 3, HCI 8093 Zürich Schweiz
- Max-Planck-Institut für Kohlenforschung Kaiser-Wihelm-Platz 1 45470 Mülheim an der Ruhr Deutschland
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243
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Delcaillau T, Bismuto A, Lian Z, Morandi B. Nickel-Catalyzed Inter- and Intramolecular Aryl Thioether Metathesis by Reversible Arylation. Angew Chem Int Ed Engl 2019; 59:2110-2114. [PMID: 31829493 PMCID: PMC7004142 DOI: 10.1002/anie.201910436] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Revised: 09/25/2019] [Indexed: 01/24/2023]
Abstract
A nickel‐catalyzed aryl thioether metathesis has been developed to access high‐value thioethers. 1,2‐Bis(dicyclohexylphosphino)ethane (dcype) is essential to promote this highly functional‐group‐tolerant reaction. Furthermore, synthetically challenging macrocycles could be obtained in good yield in an unusual example of ring‐closing metathesis that does not involve alkene bonds. In‐depth organometallic studies support a reversible Ni0/NiII pathway to product formation. Overall, this work not only provides a more sustainable alternative to previous catalytic systems based on Pd, but also presents new applications and mechanistic information that are highly relevant to the further development and application of unusual single‐bond metathesis reactions.
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Affiliation(s)
- Tristan Delcaillau
- Laboratorium für Organische Chemie, ETH Zürich, Vladimir-Prelog-Weg 3, HCI, 8093, Zürich, Switzerland.,Max-Planck-Institut für Kohlenforschung, Kaiser-Wihelm-Platz 1, 45470, Mülheim an der Ruhr, Germany
| | - Alessandro Bismuto
- Laboratorium für Organische Chemie, ETH Zürich, Vladimir-Prelog-Weg 3, HCI, 8093, Zürich, Switzerland
| | - Zhong Lian
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wihelm-Platz 1, 45470, Mülheim an der Ruhr, Germany
| | - Bill Morandi
- Laboratorium für Organische Chemie, ETH Zürich, Vladimir-Prelog-Weg 3, HCI, 8093, Zürich, Switzerland.,Max-Planck-Institut für Kohlenforschung, Kaiser-Wihelm-Platz 1, 45470, Mülheim an der Ruhr, Germany
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244
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Maini R, Kimura H, Takatsuji R, Katoh T, Goto Y, Suga H. Ribosomal Formation of Thioamide Bonds in Polypeptide Synthesis. J Am Chem Soc 2019; 141:20004-20008. [DOI: 10.1021/jacs.9b11097] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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245
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Turgut Cin G, Nohut Maşlakcı N, Biçer A, Yakalı G, Uygun Öksüz A. Electrochromic Properties of Electrospun Fibers Based on Bis‐Thiomethylcyclohexanone Derivatives. ChemistrySelect 2019. [DOI: 10.1002/slct.201903640] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Günseli Turgut Cin
- Department of ChemistryFaculty of ScienceAkdeniz University Antalya 07058 Turkey
| | - Neslihan Nohut Maşlakcı
- Department of Food Processing, Gelendost Vocational SchoolIsparta University of Applied Sciences Isparta 32900 Turkey
- Innovative Technologies Application and Research CenterSuleyman Demirel University Isparta 32260 Turkey
| | - Abdullah Biçer
- Department of ChemistryFaculty of ScienceAkdeniz University Antalya 07058 Turkey
| | - Gül Yakalı
- Department of Engineering SciencesFaculty of Engineering, Izmir Katip Celebi University Izmir 35620 Turkey
| | - Ayşegül Uygun Öksüz
- Department of ChemistryFaculty of Arts and ScienceSuleyman Demirel University Isparta 32260 Turkey
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246
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Katla R, Katla R, Silva CDG, Santos BF, Branquinho TA, Ferro CTB, Domingues NLC. [Zn(
L
‐Pro)
2
] as a Simple and Efficient Catalyst: A Convenient Route for the Synthesis of Thia‐Michael Derivatives via Green Chemical Approach. ChemistrySelect 2019. [DOI: 10.1002/slct.201903068] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Ramesh Katla
- Organic Catalysis and Biocatalysis Laboratory – LACOBFederal University of Grande Dourados – UFGD, Dourados/MS Brazil
| | - Rakhi Katla
- Organic Catalysis and Biocatalysis Laboratory – LACOBFederal University of Grande Dourados – UFGD, Dourados/MS Brazil
| | - Caren D. G. Silva
- Organic Catalysis and Biocatalysis Laboratory – LACOBFederal University of Grande Dourados – UFGD, Dourados/MS Brazil
| | - Beatriz F. Santos
- Organic Catalysis and Biocatalysis Laboratory – LACOBFederal University of Grande Dourados – UFGD, Dourados/MS Brazil
| | - Tábata A. Branquinho
- Organic Catalysis and Biocatalysis Laboratory – LACOBFederal University of Grande Dourados – UFGD, Dourados/MS Brazil
| | - Criscieli T. B. Ferro
- Organic Catalysis and Biocatalysis Laboratory – LACOBFederal University of Grande Dourados – UFGD, Dourados/MS Brazil
| | - Nelson L. C. Domingues
- Organic Catalysis and Biocatalysis Laboratory – LACOBFederal University of Grande Dourados – UFGD, Dourados/MS Brazil
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247
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Reddy RJ, Shankar A, Kumari AH. An Efficient Sequential One‐Pot Approach for the Synthesis of C3‐Functionalized Imidazo[1,2‐
a
]pyridines under Transition‐Metal Free Conditions. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900606] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Raju Jannapu Reddy
- Department of Chemistry University College of ScienceOsmania University Hyderabad 500 007 India
| | - Angothu Shankar
- Department of Chemistry University College of ScienceOsmania University Hyderabad 500 007 India
| | - Arram Haritha Kumari
- Department of Chemistry University College of ScienceOsmania University Hyderabad 500 007 India
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248
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Santos-Aberturas J, Chandra G, Frattaruolo L, Lacret R, Pham TH, Vior NM, Eyles TH, Truman AW. Uncovering the unexplored diversity of thioamidated ribosomal peptides in Actinobacteria using the RiPPER genome mining tool. Nucleic Acids Res 2019; 47:4624-4637. [PMID: 30916321 PMCID: PMC6511847 DOI: 10.1093/nar/gkz192] [Citation(s) in RCA: 84] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Revised: 02/27/2019] [Accepted: 03/13/2019] [Indexed: 01/26/2023] Open
Abstract
The rational discovery of new specialized metabolites by genome mining represents a very promising strategy in the quest for new bioactive molecules. Ribosomally synthesized and post-translationally modified peptides (RiPPs) are a major class of natural product that derive from genetically encoded precursor peptides. However, RiPP gene clusters are particularly refractory to reliable bioinformatic predictions due to the absence of a common biosynthetic feature across all pathways. Here, we describe RiPPER, a new tool for the family-independent identification of RiPP precursor peptides and apply this methodology to search for novel thioamidated RiPPs in Actinobacteria. Until now, thioamidation was believed to be a rare post-translational modification, which is catalyzed by a pair of proteins (YcaO and TfuA) in Archaea. In Actinobacteria, the thioviridamide-like molecules are a family of cytotoxic RiPPs that feature multiple thioamides, which are proposed to be introduced by YcaO-TfuA proteins. Using RiPPER, we show that previously undescribed RiPP gene clusters encoding YcaO and TfuA proteins are widespread in Actinobacteria and encode a highly diverse landscape of precursor peptides that are predicted to make thioamidated RiPPs. To illustrate this strategy, we describe the first rational discovery of a new structural class of thioamidated natural products, the thiovarsolins from Streptomyces varsoviensis.
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Affiliation(s)
| | - Govind Chandra
- Department of Molecular Microbiology, John Innes Centre, Norwich, Norfolk NR4 7UH, UK
| | - Luca Frattaruolo
- Department of Molecular Microbiology, John Innes Centre, Norwich, Norfolk NR4 7UH, UK
| | - Rodney Lacret
- Department of Molecular Microbiology, John Innes Centre, Norwich, Norfolk NR4 7UH, UK
| | - Thu H Pham
- Department of Molecular Microbiology, John Innes Centre, Norwich, Norfolk NR4 7UH, UK
| | - Natalia M Vior
- Department of Molecular Microbiology, John Innes Centre, Norwich, Norfolk NR4 7UH, UK
| | - Tom H Eyles
- Department of Molecular Microbiology, John Innes Centre, Norwich, Norfolk NR4 7UH, UK
| | - Andrew W Truman
- Department of Molecular Microbiology, John Innes Centre, Norwich, Norfolk NR4 7UH, UK
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249
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Liu C, Wu S, Xu J, Chen L, Zheng P, Chi YR. Carbene-Catalyzed Enantioselective Addition of Thioamides to Bromoenals for Access to Thiazinone Heterocycles. Org Lett 2019; 21:9493-9496. [PMID: 31742417 DOI: 10.1021/acs.orglett.9b03685] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A carbene-catalyzed reaction between α-bromoenals and thioamides was developed. Key steps include enantioselective 1,4-addition of thioamide sulfur atoms to α,β-unsaturated acyl azolium intermediate. Subsequent intramolecular annulation eventually affords thiazinone heterocycles with high optical purities. The introduction of Lewis acid additives such as Cu(OTf)2 to this NHC catalytic reaction could provide small but consistent improvements to reaction enantioselectivities.
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Affiliation(s)
- Changyi Liu
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education , Guizhou University , Huaxi District , Guiyang 550025 , China
| | - Shuquan Wu
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education , Guizhou University , Huaxi District , Guiyang 550025 , China
| | - Jun Xu
- Guizhou University of Traditional Chinese Medicine , Guiyang 550025 , China.,Division of Chemistry & Biological Chemistry, School of Physical & Mathematical Sciences , Nanyang Technological University , Singapore 637371 , Singapore
| | - Lingzhu Chen
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education , Guizhou University , Huaxi District , Guiyang 550025 , China
| | - Pengcheng Zheng
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education , Guizhou University , Huaxi District , Guiyang 550025 , China
| | - Yonggui Robin Chi
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education , Guizhou University , Huaxi District , Guiyang 550025 , China.,Division of Chemistry & Biological Chemistry, School of Physical & Mathematical Sciences , Nanyang Technological University , Singapore 637371 , Singapore
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Khan A, Zhao H, Zhang M, Khan S, Zhao D. Regio‐ and Enantioselective Synthesis of Sulfone‐Bearing Quaternary Carbon Stereocenters by Pd‐Catalyzed Allylic Substitution. Angew Chem Int Ed Engl 2019; 59:1340-1345. [DOI: 10.1002/anie.201910378] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Revised: 09/07/2019] [Indexed: 12/12/2022]
Affiliation(s)
- Ajmal Khan
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Science Sun Yat-sen University Guangzhou 510006 P. R. China
- Department of Applied Chemistry School of Science Xi'an Key Laboratory of Sustainable Energy Materials Chemistry Xi'an Jiao Tong University Xi'an 710049 P. R. China
| | - Heng Zhao
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Science Sun Yat-sen University Guangzhou 510006 P. R. China
| | - Meina Zhang
- Department of Applied Chemistry School of Science Xi'an Key Laboratory of Sustainable Energy Materials Chemistry Xi'an Jiao Tong University Xi'an 710049 P. R. China
| | - Shahid Khan
- Department of Applied Chemistry School of Science Xi'an Key Laboratory of Sustainable Energy Materials Chemistry Xi'an Jiao Tong University Xi'an 710049 P. R. China
| | - Depeng Zhao
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Science Sun Yat-sen University Guangzhou 510006 P. R. China
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