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Takikawa H. Synthetic studies on biologically active natural products with potential as agrochemicals. JOURNAL OF PESTICIDE SCIENCE 2024; 49:297-302. [PMID: 39877880 PMCID: PMC11770156 DOI: 10.1584/jpestics.j24-01] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Accepted: 06/17/2023] [Indexed: 01/31/2025]
Abstract
The chemical synthesis of biologically active natural products has diverse objectives and missions, including 1) determining the structures of the natural products, 2) providing synthetic samples for studying the activity and function, 3) providing a basis for applied research on these compounds, etc. I have studied various biologically active natural products and conducted synthetic studies on these compounds with various objectives. In this review, I present the results of my research, focusing on natural products with potential as agrochemicals.
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Affiliation(s)
- Hirosato Takikawa
- Graduate School of Agricultural and Life Sciences, The University of Tokyo
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Souza JPA, Bandeira PT, Bergmann J, Zarbin PHG. Recent advances in the synthesis of insect pheromones: an overview from 2013 to 2022. Nat Prod Rep 2023; 40:866-889. [PMID: 36820746 DOI: 10.1039/d2np00068g] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
Covering: 2013 to June 2022Pheromones are usually produced by insects in sub-microgram amounts, which prevents the elucidation of their structures by nuclear magnetic resonance (NMR). Instead, a synthetic reference material is needed to confirm the structure of the natural compounds. In addition, the provision of synthetic pheromones enables large-scale field trials for the development of environmentally friendly pest management tools. Because of these potential applications in pest control, insect pheromones are attractive targets for the development of synthetic procedures and the synthesis of these intraspecific chemical messengers has been at the core of numerous research efforts in the field of pheromone chemistry. The present review is a quick reference guide for the syntheses of insect pheromones published from 2013 to mid-2022, listing the synthesized compounds and highlighting current methodologies in organic synthesis, such as carbon-carbon coupling reactions, organo-transition metal chemistry including ring-closing olefin metathesis, asymmetric epoxidations and dihydroxylations, and enzymatic reactions.
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Affiliation(s)
- João P A Souza
- Laboratório de Semioquímicos, Departamento de Química, Universidade Federal do Paraná, UFPR, Caixa Postal 19020, Curitiba 81531-990, PR, Brazil.
| | - Pamela T Bandeira
- Laboratório de Semioquímicos, Departamento de Química, Universidade Federal do Paraná, UFPR, Caixa Postal 19020, Curitiba 81531-990, PR, Brazil. .,Departamento de Química, Universidade Federal de Santa Maria, Avda. Roraima, 1000, Santa Maria, RS, Brazil
| | - Jan Bergmann
- Instituto de Química, Pontificia Universidad Católica de Valparaíso, Avda. Universidad 330, Valparaíso, Chile.
| | - Paulo H G Zarbin
- Laboratório de Semioquímicos, Departamento de Química, Universidade Federal do Paraná, UFPR, Caixa Postal 19020, Curitiba 81531-990, PR, Brazil.
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Takikawa H, Kuwahara S. Overview of Kenji Mori's pheromone synthesis series. JOURNAL OF PESTICIDE SCIENCE 2023; 48:1-10. [PMID: 36874635 PMCID: PMC9978250 DOI: 10.1584/jpestics.d22-062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Accepted: 10/31/2022] [Indexed: 06/18/2023]
Abstract
It was the late Professor Kenji Mori, the giant of pheromone synthesis and pioneer of pheromone stereochemistry, who laid the foundation for the practical application of insect pheromones, which play an important role in Integrated Pest Management, one of the key concepts of agriculture in the 21st century. Therefore, it would be meaningful to retrace his achievements at this time, three and a half years after his death. In this review, we would like to introduce some of his notable synthetic studies from his Pheromone Synthesis Series and reconfirm his contributions to the development of pheromone chemistry and their impacts on natural science.
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Affiliation(s)
- Hirosato Takikawa
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo
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Geibel C, Olfert M, Knappe C, Serafimov K, Lämmerhofer M. Branched medium-chain fatty acid profiling and enantiomer separation of anteiso-forms of teicoplanin fatty acyl side chain RS3 using UHPLC-MS/MS with polysaccharide columns. J Pharm Biomed Anal 2023; 224:115162. [PMID: 36423498 DOI: 10.1016/j.jpba.2022.115162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 10/26/2022] [Accepted: 11/12/2022] [Indexed: 11/16/2022]
Abstract
This work reports on targeted UHPLC-tandem mass spectrometry methods for the chiral separation of anteiso-methyl branched fatty acids (aiFAs). The methods involve precolumn derivatization with 1-naphthylamine and chiral separation on Chiralpak IG-U. anteiso-Methyl branched fatty acids with up to eight carbons can be separated. A method was used for the assignment of the absolute configuration of an aiFA present as fatty acyl residue of the teicoplanin mixture, namely teicoplanin RS3. Furthermore, the excellent methylene selectivity and improved selectivity for constitutional isomers of the polysaccharide columns was exploited for the elucidation and structural confirmation of previously unknown fatty acyl residues in teicoplanin. This shows the versatility and practical applicability of polysaccharide columns as orthogonal stationary phases to reversed-phase for structural elucidation of natural compounds. The developed methods are useful tools for related subdisciplines such as targeted metabolomics and lipidomics.
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Affiliation(s)
- Christian Geibel
- Institute of Pharmaceutical Sciences, Pharmaceutical (Bio-)Analysis, University of Tübingen, Auf der Morgenstelle 8, 72076 Tübingen, Germany
| | - Matthias Olfert
- Institute of Pharmaceutical Sciences, Pharmaceutical (Bio-)Analysis, University of Tübingen, Auf der Morgenstelle 8, 72076 Tübingen, Germany
| | - Cornelius Knappe
- Institute of Pharmaceutical Sciences, Pharmaceutical (Bio-)Analysis, University of Tübingen, Auf der Morgenstelle 8, 72076 Tübingen, Germany
| | - Kristian Serafimov
- Institute of Pharmaceutical Sciences, Pharmaceutical (Bio-)Analysis, University of Tübingen, Auf der Morgenstelle 8, 72076 Tübingen, Germany
| | - Michael Lämmerhofer
- Institute of Pharmaceutical Sciences, Pharmaceutical (Bio-)Analysis, University of Tübingen, Auf der Morgenstelle 8, 72076 Tübingen, Germany.
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Wang X, Wang J, Ma F, Bian Q, Wang M, Zhong J. Asymmetric Synthesis of Contact Sex Pheromone of Tetropium fuscum and Its Enantiomer. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27206897. [PMID: 36296492 PMCID: PMC9611917 DOI: 10.3390/molecules27206897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 10/11/2022] [Accepted: 10/12/2022] [Indexed: 11/08/2022]
Abstract
Tetropium fuscum is a harmful forest pest and attacks spruces. The contact sex pheromone of this pest, (S)-11-methyl-heptacosane, and its enantiomer were synthesized via Evans' chiral auxiliaries. The key steps of this approach included acylation of carboxylic acid, diastereoselective methylation of oxazolidinone amide, and Wittig coupling of the aldehyde with chiral phosphonium salt. The synthetic pheromones would have potential utility in the control of this pest.
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Affiliation(s)
- Xueyang Wang
- Department of Applied Chemistry, China Agricultural University, 2 West Yuanmingyuan Road, Beijing 100193, China
| | - Jianan Wang
- Department of Applied Chemistry, China Agricultural University, 2 West Yuanmingyuan Road, Beijing 100193, China
| | - Fengbo Ma
- College of Enviromental Sciences, Sichuan Agricultural University, 211 Huimin Road, Chengdu 611130, China
| | - Qinghua Bian
- Department of Applied Chemistry, China Agricultural University, 2 West Yuanmingyuan Road, Beijing 100193, China
| | - Min Wang
- Department of Applied Chemistry, China Agricultural University, 2 West Yuanmingyuan Road, Beijing 100193, China
| | - Jiangchun Zhong
- Department of Applied Chemistry, China Agricultural University, 2 West Yuanmingyuan Road, Beijing 100193, China
- Correspondence: ; Tel.: +86-010-6273-1356
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A Highly Selective and Sensitive Chiral Derivatization Method for High- Performance Liquid Chromatographic Determination of the Stereoisomer Composition of Natural Products With Chiral Branched Alkyl Chains. J Chem Ecol 2022; 48:554-568. [DOI: 10.1007/s10886-021-01345-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2021] [Revised: 12/03/2021] [Accepted: 12/17/2021] [Indexed: 10/19/2022]
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Takikawa H. Memories of Professor Kenji Mori, the Giant of Pheromone Synthesis. J Chem Ecol 2021; 48:477-478. [PMID: 34716827 PMCID: PMC8556144 DOI: 10.1007/s10886-021-01327-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Revised: 10/10/2021] [Accepted: 10/17/2021] [Indexed: 11/16/2022]
Affiliation(s)
- Hirosato Takikawa
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan.
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Takikawa H. In Memory of Professor Kenji Mori. Biosci Biotechnol Biochem 2021. [DOI: 10.1093/bbb/zbaa073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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