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Lv W, Li M, Tao Y. Bridged Bicyclic Lactam Enables Chemically Recyclable Nylon. Angew Chem Int Ed Engl 2024; 63:e202402541. [PMID: 38502026 DOI: 10.1002/anie.202402541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2024] [Revised: 03/10/2024] [Accepted: 03/18/2024] [Indexed: 03/20/2024]
Abstract
Nylon, a widely-used high-performance thermoplastic, boasts exceptional durability and resistance to various solvents and weak acids, making it indispensable across diverse applications. However, its nonbiodegradable nature has led to alarming environmental pollution in land and oceans. Chemical recycling to monomers (CRM) stands as a crucial strategy for establishing a circular plastic economy, but the CRM of nylon remains largely unexplored. Herein, we introduce the bridged bicyclic lactam 5-azabicyclo[2.2.1]octan-6-one (5/6-LM), evolved from δ-valerolactam and pyrrolidone, to solve the trade-off in depolymerizability and performance. Notably, 5/6-LM exhibits nearly 95 % conversion in mild polymerization conditions and efficient depolymerization catalyzed by lewis acids. This compound is synthetically accessible from commercially available chemicals in a single step at room temperature, demonstrating high efficiency and scalability up to 50 g in laboratory. Furthermore, the resulting polyamide displays remarkable attributes including high crystallinity and thermostability up to 283 °C, significantly broadening the scope of chemically recyclable nylons.
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Affiliation(s)
- Wenxiu Lv
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Renmin Street 5625, Changchun, 130022, People's Republic of China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, People's Republic of China
| | - Maosheng Li
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Renmin Street 5625, Changchun, 130022, People's Republic of China
| | - Youhua Tao
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Renmin Street 5625, Changchun, 130022, People's Republic of China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, People's Republic of China
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2
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Tsukamoto S, Hlokoane O, Miyako K, Irie R, Sakai R, Oikawa M. Oxa-Michael-based divergent synthesis of artificial glutamate analogs. RSC Adv 2022; 12:22175-22179. [PMID: 36043066 PMCID: PMC9364357 DOI: 10.1039/d2ra03744k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Accepted: 08/02/2022] [Indexed: 11/24/2022] Open
Abstract
Herein we report stereoselective generation of two skeletons, 1,3-dioxane and tetrahydropyranol, by oxa-Michael reaction as the key reaction from δ-hydroxyenone. The construction of the 1,3-dioxane skeleton, achieved through hemiacetal formation followed by oxa-Michael reaction from δ-hydroxyenone, was exploited to access structurally diverse heterotricyclic artificial glutamate analogs. On the other hand, formation of a novel tetrahydro-2H-pyranol skeleton was accomplished by the inverse reaction order: oxa-Michael reaction followed by hemiacetal formation. Thus, this study succeeded in showing that structural diversity in a compound collection can be acquired by interchanging the order of just two reactions. Among the skeletally diverse, heterotricyclic artificial glutamate analogs synthesized in this study, a neuronally active compound named TKM-50 was discovered in the mice in vivo assay. By interchanging the order of reactions, two types of skeletons were created and a neuroactive artificial glutamate analog was developed.![]()
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Affiliation(s)
- Shuntaro Tsukamoto
- Graduate School of Nanobioscience, Yokohama City University Seto 22-2, Kanazawa-ku Yokohama 236-0027 Japan
| | - Oriel Hlokoane
- Graduate School of Nanobioscience, Yokohama City University Seto 22-2, Kanazawa-ku Yokohama 236-0027 Japan .,Department of Pharmacy, National University of Lesotho P.O. Roma 180 Maseru Lesotho
| | - Kei Miyako
- Faculty of Fisheries Sciences, Hokkaido University Hakodate 041-8611 Japan
| | - Raku Irie
- Graduate School of Nanobioscience, Yokohama City University Seto 22-2, Kanazawa-ku Yokohama 236-0027 Japan
| | - Ryuichi Sakai
- Faculty of Fisheries Sciences, Hokkaido University Hakodate 041-8611 Japan
| | - Masato Oikawa
- Graduate School of Nanobioscience, Yokohama City University Seto 22-2, Kanazawa-ku Yokohama 236-0027 Japan
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3
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Smith SN, Trujillo C, Connon SJ. Catalytic, asymmetric azidations at carbonyls: achiral and meso-anhydride desymmetrisation affords enantioenriched γ-lactams. Org Biomol Chem 2022; 20:6384-6393. [PMID: 35861618 DOI: 10.1039/d2ob01040b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An unprecedented organocatalytic process involving the asymmetric addition of azide to meso-anhydrides has been developed, promoted by novel sulfamide-substituted Cinchona alkaloid-based catalysts. Readily available glutaric anhydrides can be smoothly converted to enantioenriched hemi-acyl azides and from there to either γ-amino acids or γ-lactams.
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Affiliation(s)
- Simon N Smith
- Trinity Biomedical Sciences Institute, School of Chemistry, The University of Dublin, Trinity College, Dublin 2, Ireland.
| | - Cristina Trujillo
- Trinity Biomedical Sciences Institute, School of Chemistry, The University of Dublin, Trinity College, Dublin 2, Ireland.
| | - Stephen J Connon
- Trinity Biomedical Sciences Institute, School of Chemistry, The University of Dublin, Trinity College, Dublin 2, Ireland.
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Slagman S, Fessner WD. Biocatalytic routes to anti-viral agents and their synthetic intermediates. Chem Soc Rev 2021; 50:1968-2009. [DOI: 10.1039/d0cs00763c] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
An assessment of biocatalytic strategies for the synthesis of anti-viral agents, offering guidelines for the development of sustainable production methods for a future COVID-19 remedy.
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Affiliation(s)
- Sjoerd Slagman
- Institut für Organische Chemie und Biochemie
- Technische Universität Darmstadt
- Germany
| | - Wolf-Dieter Fessner
- Institut für Organische Chemie und Biochemie
- Technische Universität Darmstadt
- Germany
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5
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Smith SN, Craig R, Connon SJ. Divergent Synthesis of γ-Amino Acid and γ-Lactam Derivatives from meso-Glutaric Anhydrides. Chemistry 2020; 26:13378-13382. [PMID: 32996163 DOI: 10.1002/chem.202003280] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Indexed: 12/18/2022]
Abstract
The first divergent synthesis of both γ-amino acid and γ-lactam derivatives from meso-glutaric anhydrides is described. The organocatalytic desymmetrisation with TMSN3 relies on controlled generation of a nucleophilic ammonium azide species mediated by a polystyrene-bound base to promote efficient silylazidation. After Curtius rearrangement of the acyl azide intermediate to access the corresponding isocyanate, hydrolysis/alcoholysis provided uniformly high yields of γ-amino acids and their N-protected counterparts. The same intermediates were shown to undergo an unprecedented decarboxylation-cyclisation cascade in situ to provide synthetically useful yields of γ-lactam derivatives without using any further activating agents. Mechanistic insights invoke the intermediacy of an unconventional γ-N-carboxyanhydride (γ-NCA) in the latter process. Among the examples prepared using this transformation are 8 APIs/molecules of considerable medicinal interest.
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Affiliation(s)
- Simon N Smith
- School of Chemistry, Trinity Biomedical Sciences Institute, Trinity College Dublin, 152-160 Pearse Street, Dublin, 2, Ireland
| | - Ryan Craig
- School of Chemistry, Trinity Biomedical Sciences Institute, Trinity College Dublin, 152-160 Pearse Street, Dublin, 2, Ireland
| | - Stephen J Connon
- School of Chemistry, Trinity Biomedical Sciences Institute, Trinity College Dublin, 152-160 Pearse Street, Dublin, 2, Ireland
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Pinto GB, Mendes FML, Antunes AMDS. Technological Profile of Lipases in the Pharmaceutical Industry. MINI-REV ORG CHEM 2020. [DOI: 10.2174/1570193x16666190913181530] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
In recent decades, enzymes have been the target of considerable research, development,
and innovation. This paper presents an up-to-date overview of the technological application of lipases
in the pharmaceutical industry. Lipases have been used in a variety of ways in the pharmaceutical
industry, both for obtaining bioactive molecules to overcome limitations in the formulation of medicines
and in drug design. This is possible from alternative technologies, such as immobilization and
the use of non-aqueous solvents that allow the use of lipases in commercial-scale processes. In addition,
other technologies have provided the emergence of differentiated and more specific lipases in
order to meet the perspectives of industrial processes. The research indicates that the following years
should be promising for the application of lipase in the industrial biocatalysis and in drug design.
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Hu HJ, Chen P, Ao YF, Wang QQ, Wang DX, Wang MX. Highly efficient biocatalytic desymmetrization of meso carbocyclic 1,3-dicarboxamides: a versatile route for enantiopure 1,3-disubstituted cyclohexanes and cyclopentanes. Org Chem Front 2019. [DOI: 10.1039/c9qo00069k] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Highly efficient biocatalytic desymmetrization of meso carbocyclic 1,3-dicarboxamides to enantiopure 1,3-disubstituted cyclohexanes and cyclopentanes was realized.
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Affiliation(s)
- Hui-Juan Hu
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Molecular Recognition and Function
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Peng Chen
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Molecular Recognition and Function
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Yu-Fei Ao
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Molecular Recognition and Function
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Qi-Qiang Wang
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Molecular Recognition and Function
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - De-Xian Wang
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Molecular Recognition and Function
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Mei-Xiang Wang
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- China
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Ouchakour L, Ábrahámi RA, Forró E, Haukka M, Fülöp F, Kiss L. Stereocontrolled Synthesis of Fluorine-Containing Piperidine γ-Amino Acid Derivatives. European J Org Chem 2018. [DOI: 10.1002/ejoc.201801540] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Lamiaa Ouchakour
- Institute of Pharmaceutical Chemistry; University of Szeged; Szeged, Eötvös u. Hungary
- Interdisciplinary Excellence Centre; Institute of Pharmaceutical Chemistry; University of Szeged; Szeged Hungary
| | - Renáta A. Ábrahámi
- Institute of Pharmaceutical Chemistry; University of Szeged; Szeged, Eötvös u. Hungary
| | - Enikő Forró
- Institute of Pharmaceutical Chemistry; University of Szeged; Szeged, Eötvös u. Hungary
| | - Matti Haukka
- Department of Chemistry; Institute of Pharmaceutical Chemistry; University of Jyväskylä; Finland
| | - Ferenc Fülöp
- Institute of Pharmaceutical Chemistry; University of Szeged; Szeged, Eötvös u. Hungary
- MTA-SZTE Stereochemistry Research Group; Hungarian Academy of Sciences; Szeged, Eötvös u. 6 Hungary
- Interdisciplinary Excellence Centre; Institute of Pharmaceutical Chemistry; University of Szeged; Szeged Hungary
| | - Loránd Kiss
- Institute of Pharmaceutical Chemistry; University of Szeged; Szeged, Eötvös u. Hungary
- Interdisciplinary Excellence Centre; Institute of Pharmaceutical Chemistry; University of Szeged; Szeged Hungary
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Albarrán-Velo J, González-Martínez D, Gotor-Fernández V. Stereoselective biocatalysis: A mature technology for the asymmetric synthesis of pharmaceutical building blocks. BIOCATAL BIOTRANSFOR 2017. [DOI: 10.1080/10242422.2017.1340457] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Jesús Albarrán-Velo
- Organic and Inorganic Chemistry Department, Biotechnology Institute of Asturias (IUBA), University of Oviedo, Oviedo, Spain
| | - Daniel González-Martínez
- Organic and Inorganic Chemistry Department, Biotechnology Institute of Asturias (IUBA), University of Oviedo, Oviedo, Spain
| | - Vicente Gotor-Fernández
- Organic and Inorganic Chemistry Department, Biotechnology Institute of Asturias (IUBA), University of Oviedo, Oviedo, Spain
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