101
|
Diversity Oriented Clicking (DOC): Divergent Synthesis of SuFExable Pharmacophores from 2‐Substituted‐Alkynyl‐1‐Sulfonyl Fluoride (SASF) Hubs. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202003219] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
|
102
|
Paul R, Dutta D, Paul R, Dash J. Target‐Directed Azide‐Alkyne Cycloaddition for Assembling HIV‐1 TAR RNA Binding Ligands. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202003461] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Rakesh Paul
- School of Chemical Sciences Indian Association for the Cultivation of Science Jadavpur Kolkata 700 032 India
| | - Debasish Dutta
- School of Chemical Sciences Indian Association for the Cultivation of Science Jadavpur Kolkata 700 032 India
| | - Raj Paul
- School of Chemical Sciences Indian Association for the Cultivation of Science Jadavpur Kolkata 700 032 India
| | - Jyotirmayee Dash
- School of Chemical Sciences Indian Association for the Cultivation of Science Jadavpur Kolkata 700 032 India
| |
Collapse
|
103
|
Breugst M, Reißig H. Die Huisgen‐Reaktion: Meilensteine der 1,3‐dipolaren Cycloaddition. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202003115] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Martin Breugst
- Department für Chemie Universität zu Köln Greinstraße 4 50939 Köln Deutschland
| | - Hans‐Ulrich Reißig
- Institut für Chemie und Biochemie Freie Universität Berlin Takustr. 3 14195 Berlin Deutschland
| |
Collapse
|
104
|
Click synthesis of 1,4-disubstituted-1,2,3-triazoles catalyzed by melamine-supported CuO nanoparticles as an efficient recyclable catalyst in water. RESEARCH ON CHEMICAL INTERMEDIATES 2020. [DOI: 10.1007/s11164-020-04178-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
|
105
|
Neto JSS, Zeni G. Alkynes and Nitrogen Compounds: Useful Substrates for the Synthesis of Pyrazoles. Chemistry 2020; 26:8175-8189. [PMID: 31990413 DOI: 10.1002/chem.201905276] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Revised: 01/24/2020] [Indexed: 02/06/2023]
Abstract
The easy preparation and functionalization of pyrazoles associated with their innumerable biological properties have made this class of N-heterocycles very attractive for the development of new synthetic routes and applications. The cyclization reactions of alkynes and nitrogen compounds represent a powerful tool for the preparation of pyrazoles. This Review covers the recent advances in the preparation of pyrazoles by reacting alkynes and nitrogen compounds under transition-metal-catalyzed or metal-free conditions.
Collapse
Affiliation(s)
- Jose S S Neto
- Department of Biochemistry and Molecular Biology Laboratório de Síntese, Reatividade, Avaliação Farmacológica e Toxicológica de Organocalcogênios, CCNE, Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul, 97105-900, Brazil
| | - Gilson Zeni
- Department of Biochemistry and Molecular Biology Laboratório de Síntese, Reatividade, Avaliação Farmacológica e Toxicológica de Organocalcogênios, CCNE, Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul, 97105-900, Brazil
| |
Collapse
|
106
|
Zhang J, Chen Q, Mayer RJ, Yang J, Ofial AR, Cheng J, Mayr H. Voraussage absoluter Geschwindigkeitskonstanten von Huisgen‐ Reaktionen ungesättigter Iminium‐Ionen mit Diazoalkanen. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202003029] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Jingjing Zhang
- Center of Basic Molecular Science (CBMS) Department of Chemistry Tsinghua University Beijing 100084 VR China
| | - Quan Chen
- Department Chemie Ludwig-Maximilians-Universität München Butenandtstr. 5–13 81377 München Deutschland
| | - Robert J. Mayer
- Department Chemie Ludwig-Maximilians-Universität München Butenandtstr. 5–13 81377 München Deutschland
| | - Jin‐Dong Yang
- Center of Basic Molecular Science (CBMS) Department of Chemistry Tsinghua University Beijing 100084 VR China
| | - Armin R. Ofial
- Department Chemie Ludwig-Maximilians-Universität München Butenandtstr. 5–13 81377 München Deutschland
| | - Jin‐Pei Cheng
- Center of Basic Molecular Science (CBMS) Department of Chemistry Tsinghua University Beijing 100084 VR China
- State Key Laboratory of Elemento-organic Chemistry College of Chemistry Nankai University Tianjin 300071 VR China
| | - Herbert Mayr
- Department Chemie Ludwig-Maximilians-Universität München Butenandtstr. 5–13 81377 München Deutschland
| |
Collapse
|
107
|
Brai A, Riva V, Saladini F, Zamperini C, Trivisani CI, Garbelli A, Pennisi C, Giannini A, Boccuto A, Bugli F, Martini M, Sanguinetti M, Zazzi M, Dreassi E, Botta M, Maga G. DDX3X inhibitors, an effective way to overcome HIV-1 resistance targeting host proteins. Eur J Med Chem 2020; 200:112319. [PMID: 32446036 DOI: 10.1016/j.ejmech.2020.112319] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Accepted: 04/06/2020] [Indexed: 12/19/2022]
Abstract
The huge resources that had gone into Human Immunodeficiency virus (HIV) research led to the development of potent antivirals able to suppress viral load in the majority of treated patients, thus dramatically increasing the life expectancy of people living with HIV. However, life-long treatments could result in the emergence of drug-resistant viruses that can progressively reduce the number of therapeutic options, facilitating the progression of the disease. In this scenario, we previously demonstrated that inhibitors of the human DDX3X helicase can represent an innovative approach for the simultaneous treatment of HIV and other viral infections such as Hepatitis c virus (HCV). We reported herein 6b, a novel DDX3X inhibitor that thanks to its distinct target of action is effective against HIV-1 strains resistant to currently approved drugs. Its improved in vitro ADME properties allowed us to perform preliminary in vivo studies in mice, which highlighted optimal biocompatibility and an improved bioavailability. These results represent a significant advancement in the development of DDX3X inhibitors as a novel class of broad spectrum and safe anti-HIV-1 drugs.
Collapse
Affiliation(s)
- Annalaura Brai
- Dipartimento Biotecnologie, Chimica e Farmacia, Università degli Studi di Siena, Via A. De Gasperi 2, I-53100, Siena, Italy
| | - Valentina Riva
- Istituto di Genetica Molecolare "Luigi Luca Cavalli - Sforza", IGM-CNR, Via Abbiategrasso 207, I-27100, Pavia, Italy
| | - Francesco Saladini
- Dipartimento di Biotecnologie Mediche, Università degli Studi di Siena, I-53100, Siena, Italy
| | - Claudio Zamperini
- Dipartimento Biotecnologie, Chimica e Farmacia, Università degli Studi di Siena, Via A. De Gasperi 2, I-53100, Siena, Italy
| | - Claudia Immacolata Trivisani
- Dipartimento Biotecnologie, Chimica e Farmacia, Università degli Studi di Siena, Via A. De Gasperi 2, I-53100, Siena, Italy
| | - Anna Garbelli
- Istituto di Genetica Molecolare "Luigi Luca Cavalli - Sforza", IGM-CNR, Via Abbiategrasso 207, I-27100, Pavia, Italy
| | - Carla Pennisi
- Istituto di Genetica Molecolare "Luigi Luca Cavalli - Sforza", IGM-CNR, Via Abbiategrasso 207, I-27100, Pavia, Italy
| | - Alessia Giannini
- Dipartimento di Biotecnologie Mediche, Università degli Studi di Siena, I-53100, Siena, Italy
| | - Adele Boccuto
- Dipartimento di Biotecnologie Mediche, Università degli Studi di Siena, I-53100, Siena, Italy
| | - Francesca Bugli
- Fondazione Policlinico Universitario A. Gemelli IRCCS, Dipartimento di Scienze di Laboratorio e Infettivologiche, I-00168, Roma, Italy; Istituto di Microbiologia, Università Cattolica del SC, L.go F. Vito 1, I-00168, Roma, Italy
| | - Maurizio Martini
- Fondazione Policlinico Universitario A. Gemelli IRCCS, Servizio di Istopatologia e Citodiagnosi, Rome, Italy; Istituto di Patologia, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Maurizio Sanguinetti
- Fondazione Policlinico Universitario A. Gemelli IRCCS, Dipartimento di Scienze di Laboratorio e Infettivologiche, I-00168, Roma, Italy; Istituto di Microbiologia, Università Cattolica del SC, L.go F. Vito 1, I-00168, Roma, Italy
| | - Maurizio Zazzi
- Dipartimento di Biotecnologie Mediche, Università degli Studi di Siena, I-53100, Siena, Italy
| | - Elena Dreassi
- Dipartimento Biotecnologie, Chimica e Farmacia, Università degli Studi di Siena, Via A. De Gasperi 2, I-53100, Siena, Italy
| | - Maurizio Botta
- Dipartimento Biotecnologie, Chimica e Farmacia, Università degli Studi di Siena, Via A. De Gasperi 2, I-53100, Siena, Italy; Sbarro Institute for Cancer Research and Molecular Medicine, Center for Biotechnology, College of Science and Technology, Temple University, BioLife Science Building, Suite 333, 1900 N 12th Street, Philadelphia, PA, 19122, USA.
| | - Giovanni Maga
- Istituto di Genetica Molecolare "Luigi Luca Cavalli - Sforza", IGM-CNR, Via Abbiategrasso 207, I-27100, Pavia, Italy.
| |
Collapse
|
108
|
Zhulanov VE, Vigovskaya VA, Dmitriev MV, Silaichev PS, Maslivets AN, Rubin M. Dipyrazolodioxadiazocines as shelf-stable "ready-to-use" precursors for an in situ generation of enolate-iminium 1,4-dipoles: a straightforward atom-economical approach to pyrazolo[5,1-d][1,3,5]dioxazines. Org Biomol Chem 2020; 18:3382-3391. [PMID: 32323682 DOI: 10.1039/d0ob00451k] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An original, facile and highly efficient method for the in situ generation of cyclic enolate-iminium 1,4-dipoles via unique thermal decomposition of easily available dipyrazolodioxadiazocines has been developed. Various substituted pyrazolo[5,1-d][1,3,5]dioxazines have been prepared in high yields via unusual cycloconversion of dipyrazolodioxadiazocines in the presence of ketones. Furthermore, the developed method is 100% atom economical and proceeds under metal-, catalyst- and solvent-free conditions.
Collapse
Affiliation(s)
- Vladimir E Zhulanov
- Department of Chemistry, Perm State University, ul. Bukireva 15, Perm, 614990, Russian Federation.
| | - Valeria A Vigovskaya
- Department of Chemistry, Perm State University, ul. Bukireva 15, Perm, 614990, Russian Federation.
| | - Maksim V Dmitriev
- Department of Chemistry, Perm State University, ul. Bukireva 15, Perm, 614990, Russian Federation.
| | - Pavel S Silaichev
- Department of Chemistry, Perm State University, ul. Bukireva 15, Perm, 614990, Russian Federation.
| | - Andrey N Maslivets
- Department of Chemistry, Perm State University, ul. Bukireva 15, Perm, 614990, Russian Federation.
| | - Michael Rubin
- Department of Chemistry, North Caucasus Federal University, 1a Pushkin St., Stavropol 355009, Russian Federation and Department of Chemistry, University of Kansas, 1567 Irving Hill Rd., Lawrence, KS 66045-7582, USA.
| |
Collapse
|
109
|
A decade of advances in the reaction of nitrogen sources and alkynes for the synthesis of triazoles. Coord Chem Rev 2020. [DOI: 10.1016/j.ccr.2020.213217] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
|
110
|
Krauskopf F, Truong K, Rissanen K, Bolm C. [3+2]‐Cycloadditions of
N
‐Cyano Sulfoximines with 1,3‐Dipoles. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000335] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Felix Krauskopf
- Institute of Organic Chemistry RWTH Aachen University Landoltweg 1 52074 Aachen Germany
| | - Khai‐Nghi Truong
- Department of Chemistry University of Jyvaskyla P.O. Box. 35, Survontie 9 B 40014 Jyväskylä Finland
| | - Kari Rissanen
- Department of Chemistry University of Jyvaskyla P.O. Box. 35, Survontie 9 B 40014 Jyväskylä Finland
| | - Carsten Bolm
- Institute of Organic Chemistry RWTH Aachen University Landoltweg 1 52074 Aachen Germany
| |
Collapse
|
111
|
Clark PR, Williams GD, Hayes JF, Tomkinson NCO. A Scalable Metal‐, Azide‐, and Halogen‐Free Method for the Preparation of Triazoles. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201915944] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Peter R. Clark
- Chemical DevelopmentGlaxoSmithKline Gunnels Wood Road Stevenage SG1 2NY UK
- Department of Pure and Applied ChemistryUniversity of Strathclyde 295 Cathedral Street Glasgow G1 1XL UK
| | - Glynn D. Williams
- Chemical DevelopmentGlaxoSmithKline Gunnels Wood Road Stevenage SG1 2NY UK
| | - Jerome F. Hayes
- Chemical DevelopmentGlaxoSmithKline Gunnels Wood Road Stevenage SG1 2NY UK
| | - Nicholas C. O. Tomkinson
- Department of Pure and Applied ChemistryUniversity of Strathclyde 295 Cathedral Street Glasgow G1 1XL UK
| |
Collapse
|
112
|
Shankaraiah N, Sakla AP, Laxmikeshav K, Tokala R. Reliability of Click Chemistry on Drug Discovery: A Personal Account. CHEM REC 2020; 20:253-272. [DOI: 10.1002/tcr.201900027] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Revised: 07/08/2019] [Indexed: 12/14/2022]
Affiliation(s)
- Nagula Shankaraiah
- Department of Medicinal ChemistryNational Institute of Pharmaceutical Education and Research (NIPER) Hyderabad 500037 India
| | - Akash P. Sakla
- Department of Medicinal ChemistryNational Institute of Pharmaceutical Education and Research (NIPER) Hyderabad 500037 India
| | - Kritika Laxmikeshav
- Department of Medicinal ChemistryNational Institute of Pharmaceutical Education and Research (NIPER) Hyderabad 500037 India
| | - Ramya Tokala
- Department of Medicinal ChemistryNational Institute of Pharmaceutical Education and Research (NIPER) Hyderabad 500037 India
| |
Collapse
|
113
|
Liang DD, Streefkerk DE, Jordaan D, Wagemakers J, Baggerman J, Zuilhof H. Silicon-Free SuFEx Reactions of Sulfonimidoyl Fluorides: Scope, Enantioselectivity, and Mechanism. Angew Chem Int Ed Engl 2020; 59:7494-7500. [PMID: 32157791 PMCID: PMC7216998 DOI: 10.1002/anie.201915519] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 01/30/2020] [Indexed: 12/20/2022]
Abstract
SuFEx reactions, in which an S−F moiety reacts with a silyl‐protected phenol, have been developed as powerful click reactions. In the current paper we open up the potential of SuFEx reactions as enantioselective reactions, analyze the role of Si and outline the mechanism of this reaction. As a result, fast, high‐yielding, “Si‐free” and enantiospecific SuFEx reactions of sulfonimidoyl fluorides have been developed, and their mechanism shown, by both experimental and theoretical methods, to yield chiral products.
Collapse
Affiliation(s)
- Dong-Dong Liang
- Laboratory of Organic Chemistry, Wageningen University, Stippeneng 4, 6708WE, Wageningen, The Netherlands
| | - Dieuwertje E Streefkerk
- Laboratory of Organic Chemistry, Wageningen University, Stippeneng 4, 6708WE, Wageningen, The Netherlands
| | - Daan Jordaan
- Laboratory of Organic Chemistry, Wageningen University, Stippeneng 4, 6708WE, Wageningen, The Netherlands
| | - Jorden Wagemakers
- Laboratory of Organic Chemistry, Wageningen University, Stippeneng 4, 6708WE, Wageningen, The Netherlands
| | - Jacob Baggerman
- Laboratory of Organic Chemistry, Wageningen University, Stippeneng 4, 6708WE, Wageningen, The Netherlands
| | - Han Zuilhof
- Laboratory of Organic Chemistry, Wageningen University, Stippeneng 4, 6708WE, Wageningen, The Netherlands.,School of Pharmaceutical Science and Technology, Tianjin University, 92 Weijin Road, Tianjin, China.,Department of Chemical and Materials Engineering, Faculty of Engineering, King Abdulaziz University, Jeddah, Saudi Arabia
| |
Collapse
|
114
|
Liang D, Streefkerk DE, Jordaan D, Wagemakers J, Baggerman J, Zuilhof H. Silicon‐Free SuFEx Reactions of Sulfonimidoyl Fluorides: Scope, Enantioselectivity, and Mechanism. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201915519] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Dong‐Dong Liang
- Laboratory of Organic ChemistryWageningen University Stippeneng 4 6708WE Wageningen The Netherlands
| | - Dieuwertje E. Streefkerk
- Laboratory of Organic ChemistryWageningen University Stippeneng 4 6708WE Wageningen The Netherlands
| | - Daan Jordaan
- Laboratory of Organic ChemistryWageningen University Stippeneng 4 6708WE Wageningen The Netherlands
| | - Jorden Wagemakers
- Laboratory of Organic ChemistryWageningen University Stippeneng 4 6708WE Wageningen The Netherlands
| | - Jacob Baggerman
- Laboratory of Organic ChemistryWageningen University Stippeneng 4 6708WE Wageningen The Netherlands
| | - Han Zuilhof
- Laboratory of Organic ChemistryWageningen University Stippeneng 4 6708WE Wageningen The Netherlands
- School of Pharmaceutical Science and TechnologyTianjin University 92 Weijin Road Tianjin China
- Department of Chemical and Materials EngineeringFaculty of EngineeringKing Abdulaziz University Jeddah Saudi Arabia
| |
Collapse
|
115
|
Clark PR, Williams GD, Hayes JF, Tomkinson NCO. A Scalable Metal-, Azide-, and Halogen-Free Method for the Preparation of Triazoles. Angew Chem Int Ed Engl 2020; 59:6740-6744. [PMID: 31943599 DOI: 10.1002/anie.201915944] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 01/06/2020] [Indexed: 11/08/2022]
Abstract
A scalable metal-, azide-, and halogen-free method for the synthesis of substituted 1,2,3-triazoles has been developed. The reaction proceeds through a 3-component coupling of α-ketoacetals, tosyl hydrazide, and a primary amine. The reaction shows outstanding functional-group tolerance with respect to both the α-ketoacetal and amine coupling partners, providing access to 4-, 1,4-, 1,5-, and 1,4,5-substituted triazoles in excellent yield. This robust method results in densely functionalised 1,2,3-triazoles that remain challenging to prepare by azide-alkyne cycloaddition (AAC, CuAAC, RuAAC) methods and can be scaled in either batch or flow reactors. Methods for the chemoselective reaction of either aliphatic amines or anilines are also described, revealing some of the potential of this novel and highly versatile transformation.
Collapse
Affiliation(s)
- Peter R Clark
- Chemical Development, GlaxoSmithKline, Gunnels Wood Road, Stevenage, SG1 2NY, UK.,Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow, G1 1XL, UK
| | - Glynn D Williams
- Chemical Development, GlaxoSmithKline, Gunnels Wood Road, Stevenage, SG1 2NY, UK
| | - Jerome F Hayes
- Chemical Development, GlaxoSmithKline, Gunnels Wood Road, Stevenage, SG1 2NY, UK
| | - Nicholas C O Tomkinson
- Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow, G1 1XL, UK
| |
Collapse
|
116
|
Martín‐Illán JA, Royuela S, Mar Ramos M, Segura JL, Zamora F. Gas–Solid Heterogeneous Postsynthetic Modification of Imine‐Based Covalent Organic Frameworks. Chemistry 2020; 26:6495-6498. [DOI: 10.1002/chem.202000224] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Indexed: 11/12/2022]
Affiliation(s)
- Jesús A. Martín‐Illán
- Departamento de InorgánicaFacultad de CienciasUniversidad Autónoma de Madrid Madrid 28049 Spain
| | - Sergio Royuela
- Departamento de Química OrgánicaFacultad de CC. QuímicasUniversidad Complutense de Madrid Madrid 28040 Spain
- Departamento de Tecnología Química y AmbientalUniversidad Rey Juan Carlos Madrid 28933 Spain
| | - M. Mar Ramos
- Departamento de Tecnología Química y AmbientalUniversidad Rey Juan Carlos Madrid 28933 Spain
| | - José L. Segura
- Departamento de Química OrgánicaFacultad de CC. QuímicasUniversidad Complutense de Madrid Madrid 28040 Spain
| | - Félix Zamora
- Departamento de InorgánicaFacultad de CienciasUniversidad Autónoma de Madrid Madrid 28049 Spain
- Institute for Advanced Research in Chemical Sciences (IAdChem)Universidad Autónoma de Madrid Madrid 28049 Spain
- Condensed Matter Physics Center (IFIMAC)Universidad Autónoma de Madrid Madrid 28049 Spain
| |
Collapse
|
117
|
Alizadeh M, Mirjafary Z, Saeidian H. Straightforward synthesis, spectroscopic characterizations and comprehensive DFT calculations of novel 1-ester 4-sulfonamide-1,2,3-triazole scaffolds. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2019.127405] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
|
118
|
Nikita K, Ray D, Aswal V, Murthy C. Surface modification of functionalized multiwalled carbon nanotubes containing mixed matrix membrane using click chemistry. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2019.117710] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
119
|
Liu SL, Wang ZG, Xie HY, Liu AA, Lamb DC, Pang DW. Single-Virus Tracking: From Imaging Methodologies to Virological Applications. Chem Rev 2020; 120:1936-1979. [PMID: 31951121 PMCID: PMC7075663 DOI: 10.1021/acs.chemrev.9b00692] [Citation(s) in RCA: 100] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
![]()
Uncovering
the mechanisms of virus infection and assembly is crucial
for preventing the spread of viruses and treating viral disease. The
technique of single-virus tracking (SVT), also known as single-virus
tracing, allows one to follow individual viruses at different parts
of their life cycle and thereby provides dynamic insights into fundamental
processes of viruses occurring in live cells. SVT is typically based
on fluorescence imaging and reveals insights into previously unreported
infection mechanisms. In this review article, we provide the readers
a broad overview of the SVT technique. We first summarize recent advances
in SVT, from the choice of fluorescent labels and labeling strategies
to imaging implementation and analytical methodologies. We then describe
representative applications in detail to elucidate how SVT serves
as a valuable tool in virological research. Finally, we present our
perspectives regarding the future possibilities and challenges of
SVT.
Collapse
Affiliation(s)
- Shu-Lin Liu
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Research Center for Analytical Sciences, College of Chemistry, and School of Medicine , Nankai University , Tianjin 300071 , P. R. China.,Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry , China University of Geosciences , Wuhan 430074 , P. R. China
| | - Zhi-Gang Wang
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Research Center for Analytical Sciences, College of Chemistry, and School of Medicine , Nankai University , Tianjin 300071 , P. R. China
| | - Hai-Yan Xie
- School of Life Science , Beijing Institute of Technology , Beijing 100081 , P. R. China
| | - An-An Liu
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Research Center for Analytical Sciences, College of Chemistry, and School of Medicine , Nankai University , Tianjin 300071 , P. R. China
| | - Don C Lamb
- Physical Chemistry, Department of Chemistry, Center for Nanoscience (CeNS), and Center for Integrated Protein Science Munich (CIPSM) and Nanosystems Initiative Munich (NIM) , Ludwig-Maximilians-Universität , München , 81377 , Germany
| | - Dai-Wen Pang
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Research Center for Analytical Sciences, College of Chemistry, and School of Medicine , Nankai University , Tianjin 300071 , P. R. China.,College of Chemistry and Molecular Sciences, State Key Laboratory of Virology, The Institute for Advanced Studies, and Wuhan Institute of Biotechnology , Wuhan University , Wuhan 430072 , P. R. China
| |
Collapse
|
120
|
Verma NK, Mondal D, Bera S. Pharmacological and Cellular Significance of Triazole-Surrogated Compounds. CURR ORG CHEM 2020. [DOI: 10.2174/1385272823666191021114906] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
:
Heterocyclic compounds have been at the hierarchy position in academia, and
industrial arena, particularly the compounds containing triazole-core are found to be potent
with a broad range of biological activities. The resistance of triazole ring towards
chemical (acid and base) hydrolysis, oxidative and reductive reaction conditions, metabolic
degradation and its higher aromatic stabilization energy makes it a better heterocyclic
core as therapeutic agents. These triazole-linked compounds are used for clinical purposes
for antifungal, anti-mycobacterium, anticancer, anti-migraine and antidepressant
drugs. Triazole scaffolds are also found to act as a spacer for the sake of covalent attachment
of the high molecular weight bio-macromolecules with an experimental building
blocks to explore structure-function relationships. Herein, several methods and strategies
for the synthesis of compounds with 1,2,3-triazole moiety exploring Hüisgen, Meldal and Sharpless 1,3-dipolar
cycloaddition reaction between azide and alkyne derivatives have been deliberated for a series of representative
compounds. Moreover, this review article highlights in-depth applications of the [3+2]-cycloaddition reaction
for the advances of triazole-containing antibacterial as well as metabolic labelling agents for the in vitro and in
vivo studies on cellular level.
Collapse
Affiliation(s)
- Naimish Kumar Verma
- School of Chemical Sciences, Central University of Gujarat, Gandhinagar-382030, India
| | - Dhananjoy Mondal
- School of Chemical Sciences, Central University of Gujarat, Gandhinagar-382030, India
| | - Smritilekha Bera
- School of Chemical Sciences, Central University of Gujarat, Gandhinagar-382030, India
| |
Collapse
|
121
|
Mlostoń G, Urbaniak K, Jasiński M, Würthwein E, Heimgartner H, Zimmer R, Reissig H. The [4+2]-Cycloaddition of α-Nitrosoalkenes with Thiochalcones as a Prototype of Periselective Hetero-Diels-Alder Reactions-Experimental and Computational Studies. Chemistry 2020; 26:237-248. [PMID: 31429509 PMCID: PMC6973135 DOI: 10.1002/chem.201903385] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Indexed: 11/11/2022]
Abstract
The [4+2]-cycloadditions of α-nitrosoalkenes with thiochalcones occur with high selectivity at the thioketone moiety of the dienophile providing styryl-substituted 4H-1,5,2-oxathiazines in moderate to good yields. Of the eight conceivable hetero-Diels-Alder adducts only this isomer was observed, thus a prototype of a highly periselective and regioselective cycloaddition has been identified. Analysis of crude product mixtures revealed that the α-nitrosoalkene also adds competitively to the thioketone moiety of the thiochalcone dimer affording bis-heterocyclic [4+2]-cycloadducts. The experiments are supported by high-level DFT calculations that were also extended to related hetero-Diels-Alder reactions of other nitroso compounds and thioketones. These calculations reveal that the title cycloadditions are kinetically controlled processes confirming the role of thioketones as superdienophiles. The computational study was also applied to the experimentally studied thiochalcone dimerization, and showed that the 1,2-dithiin and 2H-thiopyran isomers are in equilibrium with the monomer. Again, the DFT calculations indicate kinetic control of this process.
Collapse
Affiliation(s)
| | | | - Marcin Jasiński
- Faculty of ChemistryUniversity of ŁódźTamka 1291403ŁódźPoland
| | - Ernst‐Ulrich Würthwein
- Organisch-Chemisches Institut and Center for Multiscale Theory and Computation (CMTC)Westfälische Wilhelms-Universität MünsterCorrensstrasse 4048149MünsterGermany
| | - Heinz Heimgartner
- Department of ChemistryUniversity of ZurichWinterthurerstrasse 1908057ZurichSwitzerland
| | - Reinhold Zimmer
- Institut für Chemie und BiochemieFreie Universität BerlinTakustrasse 314195BerlinGermany
| | - Hans‐Ulrich Reissig
- Institut für Chemie und BiochemieFreie Universität BerlinTakustrasse 314195BerlinGermany
| |
Collapse
|
122
|
Okaya Y, Jochi Y, Seki T, Satoh K, Kamigaito M, Hoshino T, Nakatani T, Fujinami S, Takata M, Takeoka Y. Precise Synthesis of a Homogeneous Thermoresponsive Polymer Network Composed of Four-Branched Star Polymers with a Narrow Molecular Weight Distribution. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b01616] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Yuumi Okaya
- Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - Yuto Jochi
- Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - Takahiro Seki
- Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - Kotaro Satoh
- Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - Masami Kamigaito
- Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - Taiki Hoshino
- RIKEN Spring-8 Center, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5148, Japan
| | - Tomotaka Nakatani
- RIKEN Spring-8 Center, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5148, Japan
| | - So Fujinami
- RIKEN Spring-8 Center, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5148, Japan
| | - Masaki Takata
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Katahira 2-1-1, Aobaku, Sendai City, Miyagi 980-8577, Japan
| | - Yukikazu Takeoka
- Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| |
Collapse
|
123
|
Li J, Daniliuc CG, Kehr G, Erker G. Borane‐Mediated Vinylphosphane Cycloaddition to Conjugated Ynones. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201901085] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Jun Li
- Organisch‐Chemisches Institut Westfälische Wilhelms‐Universität Münster Corrensstraße 40 48149 Münster Germany
| | - Constantin G. Daniliuc
- Organisch‐Chemisches Institut Westfälische Wilhelms‐Universität Münster Corrensstraße 40 48149 Münster Germany
| | - Gerald Kehr
- Organisch‐Chemisches Institut Westfälische Wilhelms‐Universität Münster Corrensstraße 40 48149 Münster Germany
| | - Gerhard Erker
- Organisch‐Chemisches Institut Westfälische Wilhelms‐Universität Münster Corrensstraße 40 48149 Münster Germany
| |
Collapse
|
124
|
|
125
|
Giel M, Smedley CJ, Mackie ERR, Guo T, Dong J, Soares da Costa TP, Moses JE. Metal‐Free Synthesis of Functional 1‐Substituted‐1,2,3‐Triazoles from Ethenesulfonyl Fluoride and Organic Azides. Angew Chem Int Ed Engl 2019; 59:1181-1186. [DOI: 10.1002/anie.201912728] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2019] [Revised: 11/08/2019] [Indexed: 11/09/2022]
Affiliation(s)
- Marie‐Claire Giel
- La Trobe Institute for Molecular Science La Trobe University Melbourne VIC 3086 Australia
| | - Christopher J. Smedley
- La Trobe Institute for Molecular Science La Trobe University Melbourne VIC 3086 Australia
| | - Emily R. R. Mackie
- La Trobe Institute for Molecular Science La Trobe University Melbourne VIC 3086 Australia
| | - Taijie Guo
- Key Laboratory of Organofluorine Chemistry Center for Excellence in Molecular Synthesis University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Ling-Ling Road Shanghai 200032 P. R. China
| | - Jiajia Dong
- Key Laboratory of Organofluorine Chemistry Center for Excellence in Molecular Synthesis University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Ling-Ling Road Shanghai 200032 P. R. China
| | | | - John E. Moses
- La Trobe Institute for Molecular Science La Trobe University Melbourne VIC 3086 Australia
| |
Collapse
|
126
|
Giel M, Smedley CJ, Mackie ERR, Guo T, Dong J, Soares da Costa TP, Moses JE. Metal‐Free Synthesis of Functional 1‐Substituted‐1,2,3‐Triazoles from Ethenesulfonyl Fluoride and Organic Azides. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201912728] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Marie‐Claire Giel
- La Trobe Institute for Molecular Science La Trobe University Melbourne VIC 3086 Australia
| | - Christopher J. Smedley
- La Trobe Institute for Molecular Science La Trobe University Melbourne VIC 3086 Australia
| | - Emily R. R. Mackie
- La Trobe Institute for Molecular Science La Trobe University Melbourne VIC 3086 Australia
| | - Taijie Guo
- Key Laboratory of Organofluorine Chemistry Center for Excellence in Molecular Synthesis University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Ling-Ling Road Shanghai 200032 P. R. China
| | - Jiajia Dong
- Key Laboratory of Organofluorine Chemistry Center for Excellence in Molecular Synthesis University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Ling-Ling Road Shanghai 200032 P. R. China
| | | | - John E. Moses
- La Trobe Institute for Molecular Science La Trobe University Melbourne VIC 3086 Australia
| |
Collapse
|
127
|
Salmain M, Fischer-Durand N, Rudolf B. Bioorthogonal Conjugation of Transition Organometallic Complexes to Peptides and Proteins: Strategies and Applications. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900810] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Michèle Salmain
- Sorbonne Université; CNRS; Institut Parisien de Chimie Moléculaire; 4 place Jussieu 75005 Paris France
| | - Nathalie Fischer-Durand
- Sorbonne Université; CNRS; Institut Parisien de Chimie Moléculaire; 4 place Jussieu 75005 Paris France
| | - Bogna Rudolf
- Department of Organic Chemistry; Faculty of Chemistry; University of Lodz; 91-403 Lodz Poland
| |
Collapse
|
128
|
Hayashi Y, Ishiyama Y, Takata T, Kawauchi S. Exploration of Unimolecular and Bimolecular Pathways for Nitrile
N
‐Oxide Isomerization to Isocyanate Through Global Reaction Route Mapping Techniques. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901156] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Yoshihiro Hayashi
- Department of Chemical Science and Engineering School of Materials and Chemical Technology Tokyo Institute of Technology 2‐12‐1‐E4‐6 Ookayama, Meguro‐ku 152‐8552 Tokyo Japan
- Research Institute of Polymer Science and Technology (RIPST) Tokyo Institute of Technology 2‐12‐1 Ookayama, Meguro‐ku 152‐8552 Tokyo Japan
| | - Yuki Ishiyama
- Department of Chemical Science and Engineering School of Materials and Chemical Technology Tokyo Institute of Technology 2‐12‐1‐E4‐6 Ookayama, Meguro‐ku 152‐8552 Tokyo Japan
| | - Toshikazu Takata
- Department of Chemical Science and Engineering School of Materials and Chemical Technology Tokyo Institute of Technology 2‐12‐1‐E4‐6 Ookayama, Meguro‐ku 152‐8552 Tokyo Japan
- Research Institute of Polymer Science and Technology (RIPST) Tokyo Institute of Technology 2‐12‐1 Ookayama, Meguro‐ku 152‐8552 Tokyo Japan
| | - Susumu Kawauchi
- Department of Chemical Science and Engineering School of Materials and Chemical Technology Tokyo Institute of Technology 2‐12‐1‐E4‐6 Ookayama, Meguro‐ku 152‐8552 Tokyo Japan
- Research Institute of Polymer Science and Technology (RIPST) Tokyo Institute of Technology 2‐12‐1 Ookayama, Meguro‐ku 152‐8552 Tokyo Japan
| |
Collapse
|
129
|
Second-generation testosterone-platinum(II) hybrids for site-specific treatment of androgen receptor positive prostate cancer: Design, synthesis and antiproliferative activity. Eur J Med Chem 2019; 179:660-666. [DOI: 10.1016/j.ejmech.2019.06.090] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Revised: 06/13/2019] [Accepted: 06/28/2019] [Indexed: 12/12/2022]
|
130
|
Le P, Nodwell MB, Eirich J, Sieber SA. A Chemical Proteomic Analysis of Illudin-Interacting Proteins. Chemistry 2019; 25:12644-12651. [PMID: 31310394 PMCID: PMC6900183 DOI: 10.1002/chem.201902919] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 07/15/2019] [Indexed: 01/22/2023]
Abstract
The illudin natural product family are fungal secondary metabolites with a characteristic spirocyclopropyl‐substituted fused 6,5‐bicyclic ring system. They have been extensively studied for their cytotoxicity in various tumor cell types, and semisynthetic derivatives with improved therapeutic characteristics have progressed to clinical trials. Although it is believed that this potent alkylating compound class acts mainly through DNA modification, little is known about its binding to protein sites in a cellular context. To reveal putative protein targets of the illudin family in live cancer cells, we employed a semisynthetic strategy to access a series of illudin‐based probes for activity‐based protein profiling (ABPP). While the probes largely retained potent cytotoxicity, proteomic profiling studies unraveled multiple protein hits, suggesting that illudins exert their mode of action not from addressing a specific protein target but rather from DNA modification and unselective protein binding.
Collapse
Affiliation(s)
- Philipp Le
- Department Chemie, Center for Integrated Protein Science (CIPSM), Technische Universität München, Lichtenbergstraße 4, 85748, Garching, Germany
| | - Matthew B Nodwell
- Department Chemie, Center for Integrated Protein Science (CIPSM), Technische Universität München, Lichtenbergstraße 4, 85748, Garching, Germany.,Current address: Department of Chemistry, Simon Fraser University, Burnaby, Canada
| | - Jürgen Eirich
- Department Chemie, Center for Integrated Protein Science (CIPSM), Technische Universität München, Lichtenbergstraße 4, 85748, Garching, Germany.,Current address: Institute for Plant Biology and Biotechnology (IBBP), Universität Münster, Münster, Germany
| | - Stephan A Sieber
- Department Chemie, Center for Integrated Protein Science (CIPSM), Technische Universität München, Lichtenbergstraße 4, 85748, Garching, Germany
| |
Collapse
|
131
|
Carloni LE, Mohnani S, Bonifazi D. Synthesis of 3,5-Disubstituted Isoxazoles through a 1,3-Dipolar Cycloaddition Reaction between Alkynes and Nitrile Oxides Generated from O
-Silylated Hydroxamic Acids. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901045] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Laure-Elie Carloni
- Department of Chemistry and Namur Research College (NARC); University of Namur; Rue de Bruxelles 61 5000 Namur Belgium
| | - Stefan Mohnani
- Department of Chemistry and Namur Research College (NARC); University of Namur; Rue de Bruxelles 61 5000 Namur Belgium
| | - Davide Bonifazi
- School of Chemistry, Park Place, Main Building, CF10 3AT; Cardiff University; Cardiff Wales UK
| |
Collapse
|
132
|
Larin EM, Lautens M. Intramolecular Copper(I)‐Catalyzed Interrupted Click–Acylation Domino Reaction. Angew Chem Int Ed Engl 2019; 58:13438-13442. [DOI: 10.1002/anie.201907448] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Indexed: 12/22/2022]
Affiliation(s)
- Egor M. Larin
- Davenport LaboratoriesDepartment of ChemistryUniversity of Toronto 80 St. George St. Toronto Ontario M5S 3H6 Canada
| | - Mark Lautens
- Davenport LaboratoriesDepartment of ChemistryUniversity of Toronto 80 St. George St. Toronto Ontario M5S 3H6 Canada
| |
Collapse
|
133
|
Baykal A, Zhang D, Knelles J, Alt IT, Plietker B. Nucleophilic Iron Complexes in Proton-Transfer Catalysis: An Iron-Catalyzed Dimroth Cyclocondensation. Chem Asian J 2019; 14:3003-3010. [PMID: 31310438 DOI: 10.1002/asia.201900821] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Revised: 07/15/2019] [Indexed: 12/12/2022]
Abstract
The nucleophilic iron complex Bu4 N[Fe(CO)3 (NO)] (TBA[Fe]) is an active catalyst in C-H-amination but also in proton-transfer catalysis. Herein, we describe the successful use of this complex as a proton-transfer catalyst in the cyclocondensation reaction between azides and ketones to the corresponding 1,2,3-triazoles. Cross-experiments indicate that the proton-transfer catalysis is significantly faster than the nitrene-transfer catalysis, which would lead to the C-H amination product. An example of a successful sequential Dimroth triazole-indoline synthesis to the corresponding triazole-substituted indolines is presented.
Collapse
Affiliation(s)
- Aslihan Baykal
- Institut für Organische Chemie, Universität Stuttgart, Pfaffenwaldring 55, 70569, Stuttgart, Germany
| | - Dihan Zhang
- Institut für Organische Chemie, Universität Stuttgart, Pfaffenwaldring 55, 70569, Stuttgart, Germany
| | - Jakob Knelles
- Institut für Organische Chemie, Universität Stuttgart, Pfaffenwaldring 55, 70569, Stuttgart, Germany
| | - Isabel T Alt
- Institut für Organische Chemie, Universität Stuttgart, Pfaffenwaldring 55, 70569, Stuttgart, Germany
| | - Bernd Plietker
- Institut für Organische Chemie, Universität Stuttgart, Pfaffenwaldring 55, 70569, Stuttgart, Germany
| |
Collapse
|
134
|
Lin ZQ, Li CD, Li YJ, Zhang YJ, Zhou ZC, Ye Q, Gao JR. Acid-induced intermolecular [3+2] cycloaddition/oxidation to synthesize polysubstituted benzo[ f]isoindole-4,9-diones. JOURNAL OF CHEMICAL RESEARCH 2019. [DOI: 10.1177/1747519819867235] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
A novel one-pot 1,3-dipolar cycloaddition/oxidation reaction of 1,4-quinones, aromatic aldehydes, and N-substituted amino esters to construct polysubstituted benzo[ f]isoindole-4,9-diones induced by benzoic acid is reported. Based on optimized reaction conditions, various polysubstituted benzo[ f]isoindole-4,9-diones derivatives are obtained in moderate yields. This straightforward methodology employs mild reaction conditions, a green oxidant, and readily available starting materials. Notably, a wide range of substrates is tolerated.
Collapse
Affiliation(s)
- Zhang-qi Lin
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, P.R. China
| | - Chao-dong Li
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, P.R. China
| | - Yu-jin Li
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, P.R. China
| | - Yong-jian Zhang
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, P.R. China
| | - Zi-chun Zhou
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, P.R. China
| | - Qing Ye
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, P.R. China
| | - Jian-rong Gao
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, P.R. China
| |
Collapse
|
135
|
Afanasenko A, Hannah R, Yan T, Elangovan S, Barta K. Ruthenium and Iron-Catalysed Decarboxylative N-alkylation of Cyclic α-Amino Acids with Alcohols: Sustainable Routes to Pyrrolidine and Piperidine Derivatives. CHEMSUSCHEM 2019; 12:3801-3807. [PMID: 31328892 PMCID: PMC6772061 DOI: 10.1002/cssc.201901499] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Revised: 07/12/2019] [Accepted: 07/15/2019] [Indexed: 05/05/2023]
Abstract
A modular and waste-free strategy for constructing N-substituted cyclic amines via decarboxylative N-alkylation of α-amino acids employing ruthenium- and iron-based catalysts is presented. The reported method allows the synthesis of a wide range of five- and six-membered N-alkylated heterocycles in moderate-to-excellent yields starting from predominantly proline and a broad range of benzyl alcohols, and primary and secondary aliphatic alcohols. Examples using pipecolic acid for the construction of piperidine derivatives, as well as the one-pot synthesis of α-amino nitriles, are also shown.
Collapse
Affiliation(s)
- Anastasiia Afanasenko
- Stratingh Institute for ChemistryUniversity of GroningenNijenborgh 49747 AGGroningenThe Netherlands
| | - Rachael Hannah
- Stratingh Institute for ChemistryUniversity of GroningenNijenborgh 49747 AGGroningenThe Netherlands
| | - Tao Yan
- Stratingh Institute for ChemistryUniversity of GroningenNijenborgh 49747 AGGroningenThe Netherlands
| | - Saravanakumar Elangovan
- Stratingh Institute for ChemistryUniversity of GroningenNijenborgh 49747 AGGroningenThe Netherlands
| | - Katalin Barta
- Stratingh Institute for ChemistryUniversity of GroningenNijenborgh 49747 AGGroningenThe Netherlands
| |
Collapse
|
136
|
Guo S, AbuSalim DI, Cook SP. 1,2-(Bis)trifluoromethylation of Alkynes: A One-Step Reaction to Install an Underutilized Functional Group. Angew Chem Int Ed Engl 2019; 58:11704-11708. [PMID: 31206968 PMCID: PMC7065645 DOI: 10.1002/anie.201905247] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2019] [Revised: 06/11/2019] [Indexed: 11/08/2022]
Abstract
Modifying the electronic properties of olefins is the quintessential approach to tuning alkene reactivity. In this context, the exploration of trifluoromethyl groups as divergent electronic modifiers has not been considered. In this work, we describe a copper-mediated 1,2-(bis)trifluoromethylation of acetylenes to create E-hexafluorobutenes (E-HFBs) under blue light in a single step. The reaction proceeds with high yield and E/Z selectivity. Since the alkyne captures two trifluoromethyl groups from each molecule of bpyCu(CF3 )3 , mechanistic studies were conducted to illuminate the role of the reactants. Interestingly, E-HFBs exhibit remarkable stability to standard olefin functionalization reactions in spite of the pendant trifluoromethyl groups. This finding has significant implications for medicine, agroscience, and materials.
Collapse
Affiliation(s)
- Shuo Guo
- Department of Chemistry, Indiana University 800 East Kirkwood Avenue, Bloomington, IN 47405 (United States)
| | - Deyaa I. AbuSalim
- Department of Chemistry, Indiana University 800 East Kirkwood Avenue, Bloomington, IN 47405 (United States)
| | - Silas P. Cook
- Department of Chemistry, Indiana University 800 East Kirkwood Avenue, Bloomington, IN 47405 (United States)
| |
Collapse
|
137
|
De Nino A, Algieri V, Tallarida MA, Costanzo P, Pedrón M, Tejero T, Merino P, Maiuolo L. Regioselective Synthesis of 1,4,5-Trisubstituted-1,2,3-Triazoles from Aryl Azides and Enaminones. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900889] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Antonio De Nino
- Dipartimento di Chimica e Tecnologie Chimiche; Via P. Bucci, cubo 12C; Università della Calabria; 87036 Rende (CS) Italy
| | - Vincenzo Algieri
- Dipartimento di Chimica e Tecnologie Chimiche; Via P. Bucci, cubo 12C; Università della Calabria; 87036 Rende (CS) Italy
| | - Matteo A. Tallarida
- Dipartimento di Chimica e Tecnologie Chimiche; Via P. Bucci, cubo 12C; Università della Calabria; 87036 Rende (CS) Italy
| | - Paola Costanzo
- Dipartimento di Chimica e Tecnologie Chimiche; Via P. Bucci, cubo 12C; Università della Calabria; 87036 Rende (CS) Italy
| | - Manuel Pedrón
- Via P. Bucci, cubo 12C; Instituto de Biocomputación y Física de Sistemas Complejos (BIFI). Universidad de Zaragoza; 50009 Zaragoza Spain
| | - Tomás Tejero
- Via P. Bucci, cubo 12C; Instituto de Síntesis Química y Catálisis Homogénea (ISQCH). Universidad de Zaragoza-CSIC; 50009 Zaragoza Aragon Spain
| | - Pedro Merino
- Via P. Bucci, cubo 12C; Instituto de Biocomputación y Física de Sistemas Complejos (BIFI). Universidad de Zaragoza; 50009 Zaragoza Spain
| | - Loredana Maiuolo
- Dipartimento di Chimica e Tecnologie Chimiche; Via P. Bucci, cubo 12C; Università della Calabria; 87036 Rende (CS) Italy
| |
Collapse
|
138
|
Larin EM, Lautens M. Intramolecular Copper(I)‐Catalyzed Interrupted Click–Acylation Domino Reaction. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201907448] [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)
- Egor M. Larin
- Davenport LaboratoriesDepartment of ChemistryUniversity of Toronto 80 St. George St. Toronto Ontario M5S 3H6 Canada
| | - Mark Lautens
- Davenport LaboratoriesDepartment of ChemistryUniversity of Toronto 80 St. George St. Toronto Ontario M5S 3H6 Canada
| |
Collapse
|
139
|
Guo S, AbuSalim DI, Cook SP. 1,2‐(Bis)trifluoromethylation of Alkynes: A One‐Step Reaction to Install an Underutilized Functional Group. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201905247] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Shuo Guo
- Department of Chemistry Indiana University 800 East Kirkwood Avenue Bloomington IN 47405 USA
| | - Deyaa I. AbuSalim
- Department of Chemistry Indiana University 800 East Kirkwood Avenue Bloomington IN 47405 USA
| | - Silas P. Cook
- Department of Chemistry Indiana University 800 East Kirkwood Avenue Bloomington IN 47405 USA
| |
Collapse
|
140
|
Bruyat P, Jean L, Renard PY. Regioselective Solid-Phase Synthesis of Peptide Analogues Containing 3,4- or 3,5-Disubstituted Isoxazole as s-cis
or s-trans
Peptide Bond Mimics. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900378] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Pierrick Bruyat
- Normandie Univ; UNIROUEN, INSA Rouen, CNRS, COBRA (UMR 6014), IRCOF; 1 Rue Tesnières 76821 Mont-Saint-Aignan Cedex France
| | - Ludovic Jean
- Normandie Univ; UNIROUEN, INSA Rouen, CNRS, COBRA (UMR 6014), IRCOF; 1 Rue Tesnières 76821 Mont-Saint-Aignan Cedex France
| | - Pierre-Yves Renard
- Normandie Univ; UNIROUEN, INSA Rouen, CNRS, COBRA (UMR 6014), IRCOF; 1 Rue Tesnières 76821 Mont-Saint-Aignan Cedex France
| |
Collapse
|
141
|
Yang X, Zou J, Wang Y, Xue Y, Yang S. Role of Water in the Reaction Mechanism and endo/exo Selectivity of 1,3-Dipolar Cycloadditions Elucidated by Quantum Chemistry and Machine Learning. Chemistry 2019; 25:8289-8303. [PMID: 30887586 DOI: 10.1002/chem.201900617] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2019] [Indexed: 02/05/2023]
Abstract
Asymmetric 1,3-dipolar cycloadditions of azomethine ylides with activated olefins are among the most important and versatile methods for the synthesis of enantioenriched pyrroline and pyrrolidine derivatives. Despite both theoretical and practical importance, the role of water molecules in the reactivity and endo/exo selectivity remains unclear. To explore how water accelerates the reactions and improves the endo/exo selectivity of the cycloadditions of 1,3-dipole phthalazinium-2-dicyanomethanide (1) and two dipolarophiles, an ab initio-quality neural network potential that overcomes the computational bottleneck of explicitly considering water molecules was used. It is demonstrated that not only the nature of both the dipolarophile and the 1,3-dipole, but also the solvent medium, can perturb or even alter the reaction mechanism. An extreme case was found for the reaction of 1,3-dipole 1 with methyl vinyl ketone, in which the reaction mechanism changes from a concerted to a stepwise mode on going from MeCN to H2 O as solvent, with formation of a zwitterionic intermediate that is a very shallow minimum on the energy surface. Thus, high stereocontrol can still be expected despite the stepwise nature of the mechanism. The results indicate that water can induce global polarization along the reaction coordinate and highlight the role of microsolvation effects and bulk-phase effects in reproducing the experimentally observed aqueous acceleration and enhanced endo/exo selectivity.
Collapse
Affiliation(s)
- Xin Yang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, P.R. China
| | - Jun Zou
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, P.R. China
| | - Yifei Wang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, P.R. China
| | - Ying Xue
- College of Chemistry, Key Lab of Green Chemistry and Technology in Ministry of Education, Sichuan University, Chengdu, Sichuan, 610041, P.R. China
| | - Shengyong Yang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, P.R. China
| |
Collapse
|
142
|
Zhang Q, Liu N, Mo H, Lu X, Wang Y, Xu M, Shu Y. Facile Preparation and Properties of Crosslinked Copolyether Elastomers with 1,2,3-Triazole and Urethane Subunit via Click Polymerization. ChemistryOpen 2019; 8:571-579. [PMID: 31065507 PMCID: PMC6496403 DOI: 10.1002/open.201900065] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Revised: 03/19/2019] [Indexed: 11/30/2022] Open
Abstract
An azide terminated ethylene oxide‐tetrahydrofuran copolymer with urethane segments (ATUPET) as a novel binder pre‐polymer, has been prepared through ethylene oxide‐tetrahydrofuran random copolymer (PET) end‐capping modification via one‐pot method. The structure characterization of the modifier has been analyzed by FTIR, 1H NMR, 13C NMR and GPC. In comparison with PET, ATUPET has a slightly higher viscosity because it has additional hydrogen bonding interaction generated by the urethane in ATUPET. Triazole cross‐linked elastomers based on ATUPET with various functional molar ratios were prepared using tripropargylamine as a curing agent and cross‐linker. Mechanical properties indicate that the modulus E and tensile strength σb exhibit a parabolic dependence with the increase in R. At around the stoichiometric ratio, the modulus E and tensile strength σb reach a maximum and the elongation at break exhibit an acceptable value at the same time. Swelling tests demonstrate that the apparent cross‐linking densities (N0) have a maximum value at the stoichiometric ratio. Thermal analysis shows that the ATUPET prepolymer and its polytriazoles elastomers exhibit a satisfactory stability. The results demonstrated that ATUPET might be a promising polymeric binder for future propellant formulations especially in the field of isocyanate‐free curing technology.
Collapse
Affiliation(s)
- Qian Zhang
- Xi'an Modern Chemistry Research Institute Xi'an China.,State Key Laboratory of Fluorine and Nitrogen Chemicals Xi'an China
| | - Ning Liu
- State Key Laboratory of Fluorine and Nitrogen Chemicals Xi'an China
| | - Hongchang Mo
- State Key Laboratory of Fluorine and Nitrogen Chemicals Xi'an China
| | - Xianming Lu
- State Key Laboratory of Fluorine and Nitrogen Chemicals Xi'an China
| | - Yao Wang
- China Tobacco Shaanxi Industrial Co., Ltd. Baoji China
| | - Minghui Xu
- State Key Laboratory of Fluorine and Nitrogen Chemicals Xi'an China
| | - Yuanjie Shu
- Xi'an Modern Chemistry Research Institute Xi'an China.,State Key Laboratory of Fluorine and Nitrogen Chemicals Xi'an China
| |
Collapse
|
143
|
Ren H, Cunha E, Sun Q, Li Z, Kinloch IA, Young RJ, Fan Z. Surface functionality analysis by Boehm titration of graphene nanoplatelets functionalized via a solvent-free cycloaddition reaction. NANOSCALE ADVANCES 2019; 1:1432-1441. [PMID: 36132604 PMCID: PMC9417147 DOI: 10.1039/c8na00280k] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Accepted: 01/18/2019] [Indexed: 05/26/2023]
Abstract
In this work, the functionalization of graphene nanoplatelets (GNPs) performed by a solvent-free cycloaddition reaction on GNPs with iminodiacetic acid (IDA) and paraformaldehyde (PFA), and the functionality analysis of the resulting functionalized GNPs (f-GNPs) by Boehm titration are introduced. The f-GNPs synthesized at different temperatures were characterized by X-ray diffraction (XRD), Raman spectroscopy and scanning electron microscopy (SEM) for structural and morphological properties. Back titration of the f-GNPs selectively identified 3 types of functional groups on the f-GNP surface, carboxylic, lactonic and phenolic, and suggested that 200 °C gives the highest carboxylic group functionality. With the reaction temperature increasing from 180 to 220 °C, a decrease in the phenolic functionality and an increase in that of lactonic are observed. In the case of 250 °C reactions, it was found that the carboxylic functionality is greatly reduced, while the phenolic functionality showed a significant increase. The f-GNP samples were further characterized by thermogravimetric analysis (TGA) and X-ray photoelectron spectroscopy (XPS), the results of which showed a good agreement with the titration analysis.
Collapse
Affiliation(s)
- He Ren
- Beijing Institute of Aeronautical Materials (BIAM) Beijing China
| | - Eunice Cunha
- National Graphene Institute, School of Materials, University of Manchester Manchester M13 9PL UK
| | - Quanji Sun
- Beijing Institute of Aeronautical Materials (BIAM) Beijing China
| | - Zheling Li
- National Graphene Institute, School of Materials, University of Manchester Manchester M13 9PL UK
| | - Ian A Kinloch
- National Graphene Institute, School of Materials, University of Manchester Manchester M13 9PL UK
| | - Robert J Young
- National Graphene Institute, School of Materials, University of Manchester Manchester M13 9PL UK
| | - Zhaodong Fan
- Beijing Institute of Aeronautical Materials (BIAM) Beijing China
| |
Collapse
|
144
|
Sultana J, Khupse ND, Chakrabarti S, Chattopadhyay P, Sarma D. Ag2CO3-catalyzed cycloaddition of organic azides onto terminal alkynes: A green and sustainable protocol accelerated by aqueous micelles of CPyCl. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.03.036] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
145
|
Hamlin TA, Levandowski BJ, Narsaria AK, Houk KN, Bickelhaupt FM. Structural Distortion of Cycloalkynes Influences Cycloaddition Rates both by Strain and Interaction Energies. Chemistry 2019; 25:6342-6348. [PMID: 30779472 PMCID: PMC6519225 DOI: 10.1002/chem.201900295] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2019] [Revised: 02/16/2019] [Indexed: 12/27/2022]
Abstract
The reactivities of 2‐butyne, cycloheptyne, cyclooctyne, and cyclononyne in the 1,3‐dipolar cycloaddition reaction with methyl azide were evaluated through DFT calculations at the M06‐2X/6‐311++G(d)//M06‐2X/6‐31+G(d) level of theory. Computed activation free energies for the cycloadditions of cycloalkynes are 16.5–22.0 kcal mol−1 lower in energy than that of the acyclic 2‐butyne. The strained or predistorted nature of cycloalkynes is often solely used to rationalize this significant rate enhancement. Our distortion/interaction–activation strain analysis has been revealed that the degree of geometrical predistortion of the cycloalkyne ground‐state geometries acts to enhance reactivity compared with that of acyclic alkynes through three distinct mechanisms, not only due to (i) a reduced strain or distortion energy, but also to (ii) a smaller HOMO–LUMO gap, and (iii) an enhanced orbital overlap, which both contribute to more stabilizing orbital interactions.
Collapse
Affiliation(s)
- Trevor A Hamlin
- Department of Theoretical Chemistry, Amsterdam Center for Multiscale Modeling (ACMM), Vrije Universiteit Amsterdam, De Boelelaan 1083, 1081 HV, Amsterdam, The Netherlands
| | - Brian J Levandowski
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA, 90095, USA
| | - Ayush K Narsaria
- Department of Theoretical Chemistry, Amsterdam Center for Multiscale Modeling (ACMM), Vrije Universiteit Amsterdam, De Boelelaan 1083, 1081 HV, Amsterdam, The Netherlands
| | - Kendall N Houk
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA, 90095, USA
| | - F Matthias Bickelhaupt
- Department of Theoretical Chemistry, Amsterdam Center for Multiscale Modeling (ACMM), Vrije Universiteit Amsterdam, De Boelelaan 1083, 1081 HV, Amsterdam, The Netherlands.,Institute for Molecules and Materials (IMM), Radboud University of Nijmegen, Heyendaalseweg 135, 6525 AJ, Nijmegen, The Netherlands
| |
Collapse
|
146
|
Zhukovsky D, Dar'in D, Kantin G, Krasavin M. Synthetic Exploration of α-Diazo γ-Butyrolactams. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900133] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Daniil Zhukovsky
- Saint Petersburg State University; 199034 Saint Petersburg Russian Federation
| | - Dmitry Dar'in
- Saint Petersburg State University; 199034 Saint Petersburg Russian Federation
| | - Grigory Kantin
- Saint Petersburg State University; 199034 Saint Petersburg Russian Federation
| | - Mikhail Krasavin
- Saint Petersburg State University; 199034 Saint Petersburg Russian Federation
| |
Collapse
|
147
|
Csuk R, Deigner HP. The potential of click reactions for the synthesis of bioactive triterpenes. Bioorg Med Chem Lett 2019; 29:949-958. [PMID: 30799214 DOI: 10.1016/j.bmcl.2019.02.020] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 02/17/2019] [Accepted: 02/18/2019] [Indexed: 01/03/2023]
Abstract
Click reactions between alkynes and azides using the privileged scaffold of triterpenes have been of interest for biological chemistry. Many publications deal with the synthesis of novel bioactive molecules; these conjugates have also been used for bioanalytical and diagnostic purposes. As a result, conjugates of better physicochemical properties were obtained; even compounds of improved solubility in water and physiological fluids were made through the introduction of a triazol residue. "Hybrid-structures", i.e. molecules consisting of two independently bioactive subunits linked by a triazole residue were higher bioactive than their parent compounds but not as active as expected, and with a few exceptions the ultimate breakthrough has not yet been achieved. Only in the synthesis of compounds with anti-leishmanial activity some new and promising lead structures were found. As a consequence, triazole modified triterpenes seem to hold their greatest future prospect rather as diagnostic reagents and molecular probes than as drugs.
Collapse
Affiliation(s)
- René Csuk
- Martin-Luther-University Halle-Wittenberg, Organic Chemistry, Kurt-Mothes-Str. 2, D-06120 Halle (Saale), Germany
| | - Hans-Peter Deigner
- Furtwangen University, Medical and Life Sciences Faculty, Jakob-Kienzle Str. 17, D-78054 Villingen-Schwenningen, Germany
| |
Collapse
|
148
|
Santiago J, Burtoloso ACB. Synthesis of Fused Bicyclic [1,2,3]-Triazoles from γ-Amino Diazoketones. ACS OMEGA 2019; 4:159-168. [PMID: 31459321 PMCID: PMC6648081 DOI: 10.1021/acsomega.8b02764] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Accepted: 12/18/2018] [Indexed: 06/10/2023]
Abstract
Triazoles are an important class of N-heterocycles that are well known for their broad biological activities. In this work, we would like to demonstrate a direct synthesis of the rare fused bicyclic [1,2,3]-triazoles, employing γ-N-protected amino diazoketones as useful synthetic platforms. The strategy was based on the deprotection of a trifluoroacetamide group for the intramolecular and in situ generation of an α-diazo imine intermediate, followed by a 5-endo-dig cyclization to construct the bicyclic unit. In this fashion, the synthesis of a series of fused bicyclic [1,2,3]-triazoles could be carried out in good to excellent yields (63-95%).
Collapse
|
149
|
Keim M, Maas G. Terminal Acetylenic Iminium Salts: Cycloaddition Reactions with Azides Leading to 1,2,3-Triazoles and Bicyclic 1,2,3-Triazolium Salts. European J Org Chem 2019. [DOI: 10.1002/ejoc.201801749] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Michael Keim
- Institute of Organic Chemistry I; Ulm University; Albert-Einstein-Allee 11 89081 Ulm Germany
| | - Gerhard Maas
- Institute of Organic Chemistry I; Ulm University; Albert-Einstein-Allee 11 89081 Ulm Germany
| |
Collapse
|
150
|
Saijo R, Kawase M. Cycloaddition Reaction of Mesoionic 4-Trifluoroacetyl-1,3-oxazolium-5-olates with Enamines Affording 2-Trifluoroacetylpyrroles. European J Org Chem 2019. [DOI: 10.1002/ejoc.201801728] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Ryosuke Saijo
- Faculty of Pharmaceutical Sciences; Matsuyama University; 4-2 Bunkyo-cho Matsuyama, Ehime 790-8578 Japan
| | - Masami Kawase
- Faculty of Pharmaceutical Sciences; Matsuyama University; 4-2 Bunkyo-cho Matsuyama, Ehime 790-8578 Japan
| |
Collapse
|