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Xu ZY, Wei JS, Liu L, Hu QB, Zhu JY, Zhou ZY, Xia AB, Xu DQ. Synthesis of Tetrasubstituted Enamines Using Secondary Amines and In Situ-Generated Allenes from Nitrocyclopropanes. J Org Chem 2024. [PMID: 39294860 DOI: 10.1021/acs.joc.4c00829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/21/2024]
Abstract
A novel reaction of cyclic and acyclic secondary amines with in situ-generated allene intermediate species from nitro-substituted donor-acceptor cyclopropanes is reported. In the presence of a simple inorganic base, NaOH, tetrasubstituted enamine derivatives can be obtained in moderate to excellent yields. The reaction is operationally easy, features mild reaction conditions and simple inorganic bases, and is free of transition metals.
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Affiliation(s)
- Zhong-Yang Xu
- Catalytic Hydrogenation Research Centre, State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China
| | - Jian-Sheng Wei
- Catalytic Hydrogenation Research Centre, State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China
| | - Li Liu
- Hangzhou Guangcheng Energy & Environment Technology Company, Ltd., Hangzhou 310006, People's Republic of China
| | - Qing-Bo Hu
- Catalytic Hydrogenation Research Centre, State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China
| | - Jin-Yao Zhu
- Catalytic Hydrogenation Research Centre, State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China
| | - Zhan-Yu Zhou
- Catalytic Hydrogenation Research Centre, State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China
| | - Ai-Bao Xia
- Catalytic Hydrogenation Research Centre, State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China
| | - Dan-Qian Xu
- Catalytic Hydrogenation Research Centre, State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China
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Liu P, Jiang L, Zhao Y, Wang Y, Ye Y, Xue F, Hammock BD, Zhang C. Fluorescent and Colorimetric Dual-Readout Immunochromatographic Assay for the Detection of Phenamacril Residues in Agricultural Products. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:11241-11250. [PMID: 38709728 DOI: 10.1021/acs.jafc.3c07859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2024]
Abstract
The fungicide phenamacril has been employed to manage Fusarium and mycotoxins in crops, leading to persistent residues in the environment and plants. Detecting phenamacril is pivotal for ensuring environmental and food safety. In this study, haptens and artificial antigens were synthesized to produce antiphenamacril monoclonal antibodies (mAbs). Additionally, gold nanoparticles coated with a polydopamine shell were synthesized and conjugated with mAbs, inducing fluorescence quenching in quantum dots. Moreover, a dual-readout immunochromatographic assay that combines the positive signal from fluorescence with the negative signal from colorimetry was developed to enable sensitive and precise detection of phenamacril within 10 min, achieving detection limits of 5 ng/mL. The method's reliability was affirmed by using spiked wheat flour samples, achieving a limit of quantitation of 0.05 mg/kg. This analytical platform demonstrates high sensitivity, outstanding accuracy, and robust tolerance to matrix effects, making it suitable for the rapid, onsite, quantitative screening of phenamacril residues.
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Affiliation(s)
- Pengyan Liu
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Ministry of Science and Technology; Key Laboratory for Control Technology and Standard for Agro-Product Safety and Quality, Ministry of Agriculture and Rural Affairs; Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Lan Jiang
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Ministry of Science and Technology; Key Laboratory for Control Technology and Standard for Agro-Product Safety and Quality, Ministry of Agriculture and Rural Affairs; Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
- College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China
| | - Yun Zhao
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Yulong Wang
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Ministry of Science and Technology; Key Laboratory for Control Technology and Standard for Agro-Product Safety and Quality, Ministry of Agriculture and Rural Affairs; Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Yuhui Ye
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Ministry of Science and Technology; Key Laboratory for Control Technology and Standard for Agro-Product Safety and Quality, Ministry of Agriculture and Rural Affairs; Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Feng Xue
- Joint International Research Laboratory of Animal Health and Food Safety of the Ministry of Education, Nanjing Agricultural University, Nanjing 210095, China
| | - Bruce D Hammock
- Department of Entomology and Nematology and the UCD Comprehensive Cancer Center, University of California Davis, Davis, California 95616, United States
| | - Cunzheng Zhang
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Ministry of Science and Technology; Key Laboratory for Control Technology and Standard for Agro-Product Safety and Quality, Ministry of Agriculture and Rural Affairs; Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
- College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China
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Zhang Z, Le GNT, Ge Y, Tang X, Chen X, Ejim L, Bordeleau E, Wright GD, Burns DC, Tran S, Axerio-Cilies P, Wang YT, Dong M, Woolley GA. Isomerization of bioactive acylhydrazones triggered by light or thiols. Nat Chem 2023; 15:1285-1295. [PMID: 37308709 DOI: 10.1038/s41557-023-01239-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Accepted: 05/12/2023] [Indexed: 06/14/2023]
Abstract
The acylhydrazone unit is well represented in screening databases used to find ligands for biological targets, and numerous bioactive acylhydrazones have been reported. However, potential E/Z isomerization of the C=N bond in these compounds is rarely examined when bioactivity is assayed. Here we analysed two ortho-hydroxylated acylhydrazones discovered in a virtual drug screen for modulators of N-methyl-D-aspartate receptors and other bioactive hydroxylated acylhydrazones with structurally defined targets reported in the Protein Data Bank. We found that ionized forms of these compounds, which are populated under laboratory conditions, photoisomerize readily and the isomeric forms have markedly different bioactivity. Furthermore, we show that glutathione, a tripeptide involved with cellular redox balance, catalyses dynamic E⇄Z isomerization of acylhydrazones. The ratio of E to Z isomers in cells is determined by the relative stabilities of the isomers regardless of which isomer was applied. We conclude that E/Z isomerization may be a common feature of the bioactivity observed with acylhydrazones and should be routinely analysed.
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Affiliation(s)
- Zhiwei Zhang
- Department of Chemistry, University of Toronto, Toronto, Ontario, Canada
- Key Laboratory for Advanced Materials, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, China
| | - Giang N T Le
- Department of Chemistry, University of Toronto, Toronto, Ontario, Canada
| | - Yang Ge
- Department of Medicine, Djavad Mowafaghian Centre for Brain Health, University of British Columbia, Vancouver, British Columbia, Canada
| | - Xiaowen Tang
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University, Qingdao, China
| | - Xin Chen
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University, Qingdao, China
| | - Linda Ejim
- David Braley Centre for Antibiotics Discovery M.G. DeGroote Institute for Infectious Disease Research, Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Ontario, Canada
| | - Emily Bordeleau
- David Braley Centre for Antibiotics Discovery M.G. DeGroote Institute for Infectious Disease Research, Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Ontario, Canada
| | - Gerard D Wright
- David Braley Centre for Antibiotics Discovery M.G. DeGroote Institute for Infectious Disease Research, Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Ontario, Canada
| | - Darcy C Burns
- Department of Chemistry, University of Toronto, Toronto, Ontario, Canada
| | - Susannah Tran
- Department of Chemistry, University of Toronto, Toronto, Ontario, Canada
| | - Peter Axerio-Cilies
- Department of Medicine, Djavad Mowafaghian Centre for Brain Health, University of British Columbia, Vancouver, British Columbia, Canada.
| | - Yu Tian Wang
- Department of Medicine, Djavad Mowafaghian Centre for Brain Health, University of British Columbia, Vancouver, British Columbia, Canada.
| | - Mingxin Dong
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University, Qingdao, China.
| | - G Andrew Woolley
- Department of Chemistry, University of Toronto, Toronto, Ontario, Canada.
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Undefeated-Changing the phenamacril scaffold is not enough to beat resistant Fusarium. PLoS One 2020; 15:e0235568. [PMID: 32598376 PMCID: PMC7323951 DOI: 10.1371/journal.pone.0235568] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Accepted: 06/17/2020] [Indexed: 11/19/2022] Open
Abstract
Filamentous fungi belonging to the genus Fusarium are notorious plant-pathogens that infect, damage and contaminate a wide variety of important crops. Phenamacril is the first member of a novel class of single-site acting cyanoacrylate fungicides which has proven highly effective against important members of the genus Fusarium. However, the recent emergence of field-resistant strains exhibiting qualitative resistance poses a major obstacle for the continued use of phenamacril. In this study, we synthesized novel cyanoacrylate compounds based on the phenamacril-scaffold to test their growth-inhibitory potential against wild-type Fusarium and phenamacril-resistant strains. Our findings show that most chemical modifications to the phenamacril-scaffold are associated with almost complete loss of fungicidal activity and in vitro inhibition of myosin motor domain ATPase activity.
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Donau SS, Bollmann UE, Wimmer R, Bester K. Aerobic dissipation of the novel cyanoacrylate fungicide phenamacril in soil and sludge incubations. CHEMOSPHERE 2019; 233:873-878. [PMID: 31340413 DOI: 10.1016/j.chemosphere.2019.06.015] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Revised: 05/27/2019] [Accepted: 06/02/2019] [Indexed: 06/10/2023]
Abstract
The cyanoacrylate ethyl (2Z)-3-amino-2-cyano-3-phenylacrylate (phenamacril), has been introduced as an effective agent against several fungi species belonging to the Fusarium genus. However, in current literature, knowledge about the environmental behavior of this fungicide is limited and there are no data on the degradation in the environment. By performing tests on inherent degradability as well as degradation studies in soils this study provides the only published information regarding the environmental stability and degradation kinetics of this compound. Tests for inherent/ready biodegradation revealed the phenamacril is inherently degradable with zero order kinetics, even though the degradation is comparatively slow. Degradation of phenamacril in soil was found to occur following first order kinetics with a final plateau with a half live of 17.1 days (i.e. more rapidly than tebuconazole but less rapidly than octylisothiazolinone).
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Affiliation(s)
- Søren S Donau
- Department of Chemistry and Bioscience Aalborg University, Frederik Bajers Vej 7H, 9220, Aalborg Ø, Denmark
| | - Ulla E Bollmann
- Department of Environmental Science Aarhus University, Frederiksborgvej 399, 4000, Roskilde, Denmark
| | - Reinhard Wimmer
- Department of Chemistry and Bioscience Aalborg University, Frederik Bajers Vej 7H, 9220, Aalborg Ø, Denmark
| | - Kai Bester
- Department of Environmental Science Aarhus University, Frederiksborgvej 399, 4000, Roskilde, Denmark.
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Wollenberg RD, Taft MH, Giese S, Thiel C, Balázs Z, Giese H, Manstein DJ, Sondergaard TE. Phenamacril is a reversible and noncompetitive inhibitor of Fusarium class I myosin. J Biol Chem 2019; 294:1328-1337. [PMID: 30504222 PMCID: PMC6349130 DOI: 10.1074/jbc.ra118.005408] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Revised: 11/01/2018] [Indexed: 01/03/2023] Open
Abstract
The cyanoacrylate compound phenamacril (also known as JS399-19) is a recently identified fungicide that exerts its antifungal effect on susceptible Fusarium species by inhibiting the ATPase activity of their myosin class I motor domains. Although much is known about the antifungal spectrum of phenamacril, the exact mechanism behind the phenamacril-mediated inhibition remains to be resolved. Here, we describe the characterization of the effect of phenamacril on purified myosin motor constructs from the model plant pathogen and phenamacril-susceptible species Fusarium graminearum, phenamacril-resistant Fusarium species, and the mycetozoan model organism Dictyostelium discoideum Our results show that phenamacril potently (IC50 ∼360 nm), reversibly, and noncompetitively inhibits ATP turnover, actin binding during ATP turnover, and motor activity of F. graminearum myosin-1. Phenamacril also inhibits the ATPase activity of Fusarium avenaceum myosin-1 but has little or no inhibitory effect on the motor activity of Fusarium solani myosin-1, human myosin-1c, and D. discoideum myosin isoforms 1B, 1E, and 2. Our findings indicate that phenamacril is a species-specific, noncompetitive inhibitor of class I myosin in susceptible Fusarium sp.
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Affiliation(s)
- Rasmus D Wollenberg
- Department of Chemistry and Bioscience, Aalborg University, DK-9220 Aalborg, Denmark
| | - Manuel H Taft
- Institute for Biophysical Chemistry, OE4350, Hannover Medical School, 30623 Hannover, Germany
| | - Sven Giese
- Institute for Biophysical Chemistry, OE4350, Hannover Medical School, 30623 Hannover, Germany
| | - Claudia Thiel
- Division of Structural Biochemistry, OE8830, Hannover Medical School, 30623 Hannover, Germany
| | - Zoltán Balázs
- Department of Chemistry and Bioscience, Aalborg University, DK-9220 Aalborg, Denmark
| | - Henriette Giese
- Department of Chemistry and Bioscience, Aalborg University, DK-9220 Aalborg, Denmark
| | - Dietmar J Manstein
- Institute for Biophysical Chemistry, OE4350, Hannover Medical School, 30623 Hannover, Germany; Division of Structural Biochemistry, OE8830, Hannover Medical School, 30623 Hannover, Germany.
| | - Teis E Sondergaard
- Department of Chemistry and Bioscience, Aalborg University, DK-9220 Aalborg, Denmark.
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