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Jeschke P. Recent developments in fluorine-containing pesticides. PEST MANAGEMENT SCIENCE 2024; 80:3065-3087. [PMID: 38073050 DOI: 10.1002/ps.7921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2023] [Revised: 11/28/2023] [Accepted: 12/11/2023] [Indexed: 01/17/2024]
Abstract
To ensure ongoing sustainability, the modern agrochemical industry is faced with enormous challenges. These arise from provision of high-quality food to increasing water use and environmental impact as well as a growing world population. The loss of previous agrochemicals due to consumer perception, changing grower needs and ever-changing regulatory requirements is higher than the number of active ingredients that are being introduced into the crop protection market. Therefore, the development of novel agrochemicals is essential to provide improved efficacy and environmental profiles. In this context, the introduction of fluorine atoms and fluorine-containing motifs into a molecule is an important method to influence its physicochemical properties. These include, for example, small difluoro- and trifluoromethyl, or trifluoromethoxy groups at aryl or heterocyclic aryl moieties but also fragments like 2,2,2-trifluoroethoxycarbonyl, trifluoromethylsulfonyl, trifluoroacetyl, as well as the so far unusal rest like heptafluoro-iso-propyl. This review gives an overview of recent developments of fluorine-containing pesticides launched over the past 7 years and describes a selection of current fluorine-containing development candidates. © 2023 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
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Affiliation(s)
- Peter Jeschke
- Institute of Organic Chemistry and Macromolecular Chemistry, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
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2
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Wang Y, Zhang Y, Wang S, Cai Q, Song H, Chen J. Discovery and Mechanism of a Nematicide Candidate ( W3): A Novel Amide Compound Containing a Cyclopropyl Moiety. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:5585-5594. [PMID: 38442026 DOI: 10.1021/acs.jafc.3c06696] [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: 03/07/2024]
Abstract
To find novel nematicides, we screened the nematicidal activity of compounds in our laboratory compound library. Interestingly, the compound N-((1R,2R)-2-(2-fluoro-4-(trifluoromethyl)phenyl)cyclopropyl)-2-(trifluoromethyl)benzamide (W3) showed a broad spectrum and excellent nematicidal activity. The LC50 values of compound W3 against second-stage juveniles of Bursaphelenchus xylophilus (B. xylophilus), Aphelenchoides besseyi, and Ditylenchus destructor are 1.30, 1.63, and 0.72 mg/L, respectively. Nematicidal activities of compound W3 against second-stage juveniles of Meloidogyne incognita were 87.66% at 100 mg/L. Meanwhile, compound W3 can not only observably inhibit the feeding, reproduction, and egg hatching of B. xylophilus but can also effectively promote the oxidative stress adverse reactions of nematodes and cause intestinal damage. Compound W3 can promote the production of MDA and inhibit the activities of defense enzymes SOD and GST in B. xylophilus. Compound W3 can affect the transcription of genes involved in regulating the tricarboxylic acid cycle in nematodes, resulting in weakened nematode respiration and reduced nematode activity and even death. In addition, compound W3 had good inhibitory activity against five pathogenic fungi. Among them, the EC50 of compound W3 against Fusarium graminearum was 8.4 mg/L. In the future, we will devote ourselves to the toxicological and structural optimization research of the candidate nematicide W3.
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Affiliation(s)
- Yu Wang
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Yong Zhang
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Sheng Wang
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Qingfeng Cai
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Hongyi Song
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Jixiang Chen
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
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3
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Pan SX, Yang ZK, Liu Y, Shi Z, Qin YG, Qu C, Li XS, Zhou ZX, Luo C, Yang XL. Rational design, synthesis and binding mechanisms of novel benzyl geranate derivatives as potential eco-friendly aphid repellents. PEST MANAGEMENT SCIENCE 2024; 80:1099-1106. [PMID: 37850826 DOI: 10.1002/ps.7840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 09/18/2023] [Accepted: 10/18/2023] [Indexed: 10/19/2023]
Abstract
BACKGROUND The push-pull strategy is considered as a promising eco-friendly method for pest management. Plant volatile organic compounds (PVOCs) act as semiochemicals constitute the key factor in implementing this strategy. Benzyl alcohol and geraniol, as functional PVOCs, were reported to regulate insect behavior, showing the potential application in pest control. Using geraniol as lead, a geraniol derivative 5i with fine repellent activity was discovered in our previous work. In order to explore novel, eco-friendly aphid control agents, a series of benzyl geranate derivatives was designed and synthesized using 5i as the lead and benzyl alcohol as the active fragment. RESULTS Benzyl alcohol was firstly evaluated to have repellent activity to Acyrthosiphon pisum. Based on this repellent fragment, a series of novel benzyl geranate derivatives was rationally designed and synthesized using a scaffold-hopping strategy. Among them, compound T9, with a binding affinity (Kd = 0.43 μm) and a substantial repellency of 64.7% against A. pisum, is the most promising compound. Molecule docking showed that hydrophobic and hydrogen-bonding interactions substantially influenced the binding affinity of compounds with ApisOBP9. Additionally, T9 exhibited low-toxicity to honeybees and ladybugs. CONCLUSION Using a simple scaffold-hopping strategy combined with active fragment benzyl alcohol, a new derivative T9, with high aphid-repellency and low-toxicity to nontarget organisms, can be considered as a novel potential eco-friendly aphid control agent for sustainable agriculture. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Shi-Xiang Pan
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, China
| | - Zhao-Kai Yang
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, China
| | - Yan Liu
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, China
| | - Zhuo Shi
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, China
| | - Yao-Guo Qin
- Department of Entomology and MOA Key Laboratory for Monitoring and Environment-Friendly Control of Crop Pests, College of Plant Protection, China Agricultural University, Beijing, China
| | - Cheng Qu
- Institute of Plant Protection, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Xue-Sheng Li
- Guangxi Key Laboratory of Agro-Environment and Agro-Product Safety, Agricultural College, Guangxi University, Nanning, China
| | - Zheng-Xin Zhou
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, China
| | - Chen Luo
- Institute of Plant Protection, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Xin-Ling Yang
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, China
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4
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Li Y, Li S, Yin X, Liu S. Design, synthesis and insecticidal activity of novel Isoxazoline Acylhydrazone compounds. PEST MANAGEMENT SCIENCE 2024; 80:1654-1662. [PMID: 37985394 DOI: 10.1002/ps.7897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 11/16/2023] [Accepted: 11/21/2023] [Indexed: 11/22/2023]
Abstract
BACKGROUND Nowadays, the diamondback moth has ascended to become one of the most formidable pests plaguing cruciferous vegetables. Consequently, the exigency for the development of efficacious pesticide candidates for crop protection has never been more paramount. In response to this pressing need, this study presents a compendium of novel isoxazoline derivatives, incorporating acylhydrazone moieties, synthesized with the express purpose of serving as potential insecticides. RESULTS The structures of these derivatives were confirmed using Proton nuclear magnetic resonance (1 H NMR), Carbon-13 nuclear magnetic resonance (13 C NMR), and high-resolution mass spectrometry (HR-MS). Most of these derivatives demonstrated effective insecticidal activities against Plutella xylostella. Notably, compound E3 exhibited exceptional insecticidal activity against Plutella xylostella (LC50 = 0.19 mg L-1 ), surpassing the effectiveness of ethiprole (LC50 = 3.28 mg L-1 ), and comparable to that of fluxametamide (LC50 = 0.22 mg L-1 ). Interestingly, compound E3 also displayed potent insecticidal activity against Pyrausta nubilalis (LC50 = 0.182 mg L-1 ) and Chilo suppressalis (LC50 = 0.64 mg L-1 ), and the LC50 values of fluxametamide were 0.23 mg L-1 (P. nubilalis) and 2.26 mg L-1 (C. suppressalis), respectively. The molecular docking results revealed that the compound E3 can form a hydrogen bond and two Pi-Pi bonds with the active sites of GABA receptors. In addition, the DFT calculations were also performed to study the relationship between insecticidal activities. The structure-activity relationships suggested that the identity of the R substituent was crucial for their pesticidal activities. CONCLUSION The results of the present study suggest that isoxazoline acylhydrazone derivatives could be promising candidates against P. xylostella and other Lepidopteran pests. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Yahui Li
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, China
- Key Laboratory of Agri-Food Safety of Anhui Province, School of Resources and Environment, Anhui Agricultural University, Hefei, China
| | - Shaochen Li
- Key Laboratory of Agri-Food Safety of Anhui Province, School of Resources and Environment, Anhui Agricultural University, Hefei, China
| | - Xue Yin
- Key Laboratory of Agri-Food Safety of Anhui Province, School of Resources and Environment, Anhui Agricultural University, Hefei, China
| | - Shaoli Liu
- College of Chemistry and Chemical Engineering, Yantai University, Yantai, China
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5
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Wang J, Wu W, Zhou Y, Han M, Zhou X, Sun Y, Zhang A. Design, synthesis and activity evaluation of pseudilin analogs against cyanobacteria as IspD inhibitors. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2024; 199:105769. [PMID: 38458678 DOI: 10.1016/j.pestbp.2024.105769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 12/27/2023] [Accepted: 01/05/2024] [Indexed: 03/10/2024]
Abstract
The discovery of safe, effective, and selective chemical algicides is the stringent need for the algicides development, and it is also one of the effective routes to control cyanobacteria harmful algal blooms and to meet the higher requirements of environmental and ecological. In this work, a series of novel bromo-N-phenyl-5-o-hydroxyphenylpyrazole-3-carboxyamides were rationally designed as pseudilin analogs by bioisosteric replacement and molecular hybridization strategies, in which the pyrrole unit of pseudilin was replaced with pyrazole and further combined with the dominant structural fragments of algicide diuron. The synthesis was carried out by a facile four-step routeincluding cyclization, amidation, transanulation, and halogenation. The biological activity evaluation on AtIspD, EcIspD, Synechocystis sp. PCC6803 and Microcystis aeruginosa FACHB905 revealed that most compounds had good EcIspD and excellent cyanobacteria inhibitory activity. In particular, compound 6bb exhibited potent algicidal activity against PCC6803 and FACHB905 with EC50 = 1.28 μM and 0.37 μM, respectively, 1.4-fold and 4.0-fold enhancement compared to copper sulfate (EC50 = 1.79 and 1.49 μM, respectively), and it also showed the best inhibitory activity of EcIspD. The binding of 6bb to EcIspD was explored by molecular docking, and it was confirmed that 6bb could bind to the EcIspD active site. Compound 6bb was proven to be a potential structure for the further development of novel algicides that targets IspD in the MEP pathway.
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Affiliation(s)
- Jili Wang
- College of Chemical and Environmental engineering, Hanjiang Normal University, Shiyan 442000, China
| | - Wenhai Wu
- College of Chemical and Environmental engineering, Hanjiang Normal University, Shiyan 442000, China
| | - Yaqing Zhou
- College of Chemical and Environmental engineering, Hanjiang Normal University, Shiyan 442000, China
| | - Mengying Han
- National Key Laboratory of Green Pesticide, College of Chemistry, Central China Normal University, Wuhan 430079, China
| | - Xin Zhou
- College of Chemical and Environmental engineering, Hanjiang Normal University, Shiyan 442000, China
| | - Yong Sun
- College of Chemical and Environmental engineering, Hanjiang Normal University, Shiyan 442000, China.
| | - Aidong Zhang
- National Key Laboratory of Green Pesticide, College of Chemistry, Central China Normal University, Wuhan 430079, China.
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6
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Kong W, Li N, Lai J, Sun S, Li S. Antifungal Function Oriented Scaffold Hopping for the Discovery of Oxazolyl-oxazoline as a Novel Model against Fusarium graminearum. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:18260-18269. [PMID: 37756692 DOI: 10.1021/acs.jafc.3c04725] [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: 09/29/2023]
Abstract
Discovery of novel structural models is extremely important in agrochemical innovation. Scaffold hopping was conducted, and 16 kinds of novel models were synthesized and biologically evaluated. Oxazolyl-oxazoline 25 showed a promising in vitro potential against Fusarium graminearum with EC50 value of 18.25 μM, which was 2.4 times more potent than that of carbendazim (EC50 = 43.06 μM). The antifungal structure-activity relationship (SAR) revealed that compound 25am had the most promising antifungal activity against F. graminearum, with an EC50 value of 13.46 μM, which was 3.2 more potent than that of carbendazim. Different from carbendazim, the candidate 25am could form five hydrogen bonds with the amino acid residues in β-tubulin in the molecular docking and could effectively inhibit the carbendazim-resistant F. graminearum strain. Scanning electron microscopy (SEM) revealed that compound 25am induced the mycelia of F. graminearum slight collapse. This work suggests that compound 25am should be prioritized for further evaluation for new antifungal agents.
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Affiliation(s)
- Wenlong Kong
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Nannan Li
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Jixing Lai
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Shengxin Sun
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Shengkun Li
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
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7
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Abel SAG, Alnafta N, Asmus E, Bollenbach-Wahl B, Braun R, Dittgen J, Endler A, Frackenpohl J, Freigang J, Gatzweiler E, Heinemann I, Helmke H, Laber B, Lange G, Machettira A, McArthur G, Müller T, Odaybat M, Reingruber AM, Roth S, Rosinger CH, Schmutzler D, Schulte W, Stoppel R, Tiebes J, Volpin G, Barber DM. A Study in Scaffold Hopping: Discovery and Optimization of Thiazolopyridines as Potent Herbicides That Inhibit Acyl-ACP Thioesterase. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:18212-18226. [PMID: 37677080 DOI: 10.1021/acs.jafc.3c02490] [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: 09/09/2023]
Abstract
In the search for new chemical entities that can control resistant weeds by addressing novel modes of action (MoAs), we were interested in further exploring a compound class that contained a 1,8-naphthyridine core. By leveraging scaffold hopping methodologies, we were able to discover the new thiazolopyridine compound class that act as potent herbicidal molecules. Further biochemical investigations allowed us to identify that the thiazolopyridines inhibit acyl-acyl carrier protein (ACP) thioesterase (FAT), with this being further confirmed via an X-ray cocrystal structure. Greenhouse trials revealed that the thiazolopyridines display excellent control of grass weed species in pre-emergence application coupled with dose response windows that enable partial selectivity in certain crops.
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Affiliation(s)
- Steven A G Abel
- Research and Development, Weed Control Research, Bayer AG, Crop Science Division, Industriepark Höchst, 65926, Frankfurt am Main, Germany
| | - Neanne Alnafta
- Research and Development, Weed Control Research, Bayer AG, Crop Science Division, Industriepark Höchst, 65926, Frankfurt am Main, Germany
| | - Elisabeth Asmus
- Research and Development, Weed Control Research, Bayer AG, Crop Science Division, Industriepark Höchst, 65926, Frankfurt am Main, Germany
| | - Birgit Bollenbach-Wahl
- Research and Development, Weed Control Research, Bayer AG, Crop Science Division, Industriepark Höchst, 65926, Frankfurt am Main, Germany
| | - Ralf Braun
- Research and Development, Weed Control Research, Bayer AG, Crop Science Division, Industriepark Höchst, 65926, Frankfurt am Main, Germany
| | - Jan Dittgen
- Research and Development, Weed Control Research, Bayer AG, Crop Science Division, Industriepark Höchst, 65926, Frankfurt am Main, Germany
| | - Anne Endler
- Targenomix GmbH, Am Mühlenberg 11, 14476, Potsdam, Germany
| | - Jens Frackenpohl
- Research and Development, Weed Control Research, Bayer AG, Crop Science Division, Industriepark Höchst, 65926, Frankfurt am Main, Germany
| | - Jörg Freigang
- Research and Development, Hit Discovery, Bayer AG, Crop Science Division, Alfred-Nobel-Straße 50, 40789, Monheim am Rhein, Germany
| | - Elmar Gatzweiler
- Research and Development, Weed Control Research, Bayer AG, Crop Science Division, Industriepark Höchst, 65926, Frankfurt am Main, Germany
| | - Ines Heinemann
- Research and Development, Weed Control Research, Bayer AG, Crop Science Division, Industriepark Höchst, 65926, Frankfurt am Main, Germany
| | - Hendrik Helmke
- Research and Development, Weed Control Research, Bayer AG, Crop Science Division, Industriepark Höchst, 65926, Frankfurt am Main, Germany
| | - Bernd Laber
- Research and Development, Weed Control Research, Bayer AG, Crop Science Division, Industriepark Höchst, 65926, Frankfurt am Main, Germany
| | - Gudrun Lange
- Research and Development, Weed Control Research, Bayer AG, Crop Science Division, Industriepark Höchst, 65926, Frankfurt am Main, Germany
| | - Anu Machettira
- Research and Development, Weed Control Research, Bayer AG, Crop Science Division, Industriepark Höchst, 65926, Frankfurt am Main, Germany
| | - Gillian McArthur
- Research and Development, Weed Control Research, Bayer AG, Crop Science Division, Industriepark Höchst, 65926, Frankfurt am Main, Germany
| | - Thomas Müller
- Research and Development, Weed Control Research, Bayer AG, Crop Science Division, Industriepark Höchst, 65926, Frankfurt am Main, Germany
| | - Magdalena Odaybat
- Research and Development, Weed Control Research, Bayer AG, Crop Science Division, Industriepark Höchst, 65926, Frankfurt am Main, Germany
| | - Anna M Reingruber
- Research and Development, Weed Control Research, Bayer AG, Crop Science Division, Industriepark Höchst, 65926, Frankfurt am Main, Germany
| | - Sina Roth
- Research and Development, Weed Control Research, Bayer AG, Crop Science Division, Industriepark Höchst, 65926, Frankfurt am Main, Germany
| | - Christopher H Rosinger
- Research and Development, Weed Control Research, Bayer AG, Crop Science Division, Industriepark Höchst, 65926, Frankfurt am Main, Germany
| | - Dirk Schmutzler
- Research and Development, Weed Control Research, Bayer AG, Crop Science Division, Industriepark Höchst, 65926, Frankfurt am Main, Germany
| | - Wolfgang Schulte
- Research and Development, Weed Control Research, Bayer AG, Crop Science Division, Industriepark Höchst, 65926, Frankfurt am Main, Germany
| | - Rhea Stoppel
- Research and Development, Weed Control Research, Bayer AG, Crop Science Division, Industriepark Höchst, 65926, Frankfurt am Main, Germany
| | - Jörg Tiebes
- Research and Development, Weed Control Research, Bayer AG, Crop Science Division, Industriepark Höchst, 65926, Frankfurt am Main, Germany
| | - Giulio Volpin
- Research and Development, Small Molecules Technologies, Bayer AG, Crop Science Division, Industriepark Höchst, 65926, Frankfurt am Main, Germany
| | - David M Barber
- Research and Development, Weed Control Research, Bayer AG, Crop Science Division, Industriepark Höchst, 65926, Frankfurt am Main, Germany
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8
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Quan X, Xu L, Li Z, Maienfisch P. Design, Synthesis, and Properties of Silicon-Containing meta-Diamide Insecticides. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:18188-18196. [PMID: 37191337 DOI: 10.1021/acs.jafc.3c01342] [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: 05/17/2023]
Abstract
Silicon-containing compounds are sporadically used in crop protection and drug discovery and have demonstrated to increase the biological efficacy as well as to reduce toxicity, improve physicochemical properties, and favorably impact the environmental profile. As part of our research, we have investigated the application of bioisosteric silicon replacements in meta-diamide insecticides and studied the biological activity and molecular properties of the corresponding novel compounds. At all meaningful structural elements of the meta-diamides, silicon-containing substituents were introduced and synthetic methodology was developed for their syntheses. As the most promising compound, silicon-containing meta-diamide II-18 emerged, which exhibits a very low LC50 value of 2.00 mg/L against Mythimna separata and compares well to the reference compounds 28 (LC50 = 0.17 mg/L) and II-20 (LC50 = 0.27 mg/L). Our research on silicon-containing crop protection compounds once again confirmed that the biological activity can be beneficially affected by the insertion of silicone substituents and that the introduction of well-chosen silicone motifs is an excellent strategy for agrochemical research.
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Affiliation(s)
- Xiaocao Quan
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, People's Republic of China
| | - Liu Xu
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, People's Republic of China
| | - Zhong Li
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, People's Republic of China
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, People's Republic of China
| | - Peter Maienfisch
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, People's Republic of China
- CreInSol Consulting & Biocontrols, CH-4118 Rodersdorf, Switzerland
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9
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Kalnmals CA, Benko ZL, Hamza A, Bravo-Altamirano K, Siddall TL, Zielinski M, Takano HK, Riar DS, Satchivi NM, Roth JJ, Church JB. A New Class of Diaryl Ether Herbicides: Structure-Activity Relationship Studies Enabled by a Rapid Scaffold Hopping Approach. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:18171-18187. [PMID: 37350671 DOI: 10.1021/acs.jafc.3c01285] [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: 06/24/2023]
Abstract
We report on the development of a novel class of diaryl ether herbicides. After the discovery of a phenoxybenzoic acid with modest herbicidal activity, optimization led to several molecules with improved control of broadleaf and grass weeds. To facilitate this process, we first employed a three-step combinatorial approach, then pivoted to a one-step Ullmann-type coupling that provided faster access to new analogs. After determining that the primary target site of our benchmark diaryl ethers was acetolactate synthase (ALS), we further leveraged this copper-catalyzed methodology to conduct a scaffold hopping campaign in the hope of uncovering an additional mode of action with fewer documented cases of resistance. Our comprehensive and systematic investigation revealed that while the herbicidal activity of this area seems to be exclusively linked to ALS inhibition, our molecules represent a structurally distinct class of Group 2 herbicides. The structure-activity relationships that led us to this conclusion are described herein.
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Affiliation(s)
- Christopher A Kalnmals
- Discovery Chemistry, Small Molecule Discovery and Development, Corteva Agriscience, Indianapolis, Indiana 46268, United States
| | - Zoltan L Benko
- Discovery Chemistry, Small Molecule Discovery and Development, Corteva Agriscience, Indianapolis, Indiana 46268, United States
| | - Adel Hamza
- Discovery Chemistry, Small Molecule Discovery and Development, Corteva Agriscience, Indianapolis, Indiana 46268, United States
| | - Karla Bravo-Altamirano
- Discovery Chemistry, Small Molecule Discovery and Development, Corteva Agriscience, Indianapolis, Indiana 46268, United States
| | - Thomas L Siddall
- Discovery Chemistry, Small Molecule Discovery and Development, Corteva Agriscience, Indianapolis, Indiana 46268, United States
| | - Moriah Zielinski
- Mode of Action and Resistance Management Center of Expertise, Integrated Biology and Field Sciences, Corteva Agriscience, Indianapolis, Indiana 46268, United States
| | - Hudson K Takano
- Mode of Action and Resistance Management Center of Expertise, Integrated Biology and Field Sciences, Corteva Agriscience, Indianapolis, Indiana 46268, United States
| | - Dilpreet S Riar
- Herbicide Biology, Integrated Biology and Field Sciences, Corteva Agriscience, Indianapolis, Indiana 46268, United States
| | - Norbert M Satchivi
- Herbicide Biology, Integrated Biology and Field Sciences, Corteva Agriscience, Indianapolis, Indiana 46268, United States
| | - Joshua J Roth
- Discovery Chemistry, Small Molecule Discovery and Development, Corteva Agriscience, Indianapolis, Indiana 46268, United States
| | - Jeffrey B Church
- Herbicide Biology, Integrated Biology and Field Sciences, Corteva Agriscience, Indianapolis, Indiana 46268, United States
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10
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Hood JC, Anokhin MV, Klumpp DA. Friedel-Crafts Reactions with N-Heterocyclic Alcohols. J Org Chem 2023. [PMID: 37471592 DOI: 10.1021/acs.joc.3c00403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/22/2023]
Abstract
N-Heterocyclic alcohols are shown to be excellent substrates for superacid-promoted Friedel-Crafts reactions. The N-heterocyclic alcohols ionize to produce reactive, dicationic intermediates which provide good to excellent yields of arylation products.
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Affiliation(s)
- Jacob C Hood
- Department of Chemistry and Biochemistry, Northern Illinois University, DeKalb, Illinois 60115, United States
| | - Maksim V Anokhin
- Department of Chemistry and Biochemistry, Northern Illinois University, DeKalb, Illinois 60115, United States
| | - Douglas A Klumpp
- Department of Chemistry and Biochemistry, Northern Illinois University, DeKalb, Illinois 60115, United States
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11
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Steinborn C, Tancredi A, Habiger C, Diederich C, Kramer J, Reingruber AM, Laber B, Freigang J, Lange G, Schmutzler D, Machettira A, Besong G, Magauer T, Barber DM. Investigations into Simplified Analogues of the Herbicidal Natural Product (+)-Cornexistin. Chemistry 2023; 29:e202300199. [PMID: 36807428 PMCID: PMC7614749 DOI: 10.1002/chem.202300199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 02/17/2023] [Accepted: 02/20/2023] [Indexed: 02/22/2023]
Abstract
We report the design, synthesis and biological evaluation of simplified analogues of the herbicidal natural product (+)-cornexistin. Guided by an X-Ray co-crystal structure of cornexistin bound to transketolase from Zea mays, we attempted to identify the key interactions that are necessary for cornexistin to maintain its herbicidal profile. This resulted in the preparation of three novel analogues investigating the importance of substituents that are located on the nine-membered ring of cornexistin. One analogue maintained a good level of biological activity and could provide researchers insights in how to further optimize the structure of cornexistin for commercialization in the future.
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Affiliation(s)
- Christian Steinborn
- Institute of Organic Chemistry and Center for Molecular Biosciences, University of Innsbruck, Innrain 80-82, 6020, Innsbruck, Austria
| | - Aldo Tancredi
- Institute of Organic Chemistry and Center for Molecular Biosciences, University of Innsbruck, Innrain 80-82, 6020, Innsbruck, Austria
| | - Christoph Habiger
- Institute of Organic Chemistry and Center for Molecular Biosciences, University of Innsbruck, Innrain 80-82, 6020, Innsbruck, Austria
| | - Christina Diederich
- Research & Development, Weed Control Bayer AG, Crop Science Division, Industriepark Höchst, 65926, Frankfurt am Main, Germany
| | - Jan Kramer
- Research & Development, Weed Control Bayer AG, Crop Science Division, Industriepark Höchst, 65926, Frankfurt am Main, Germany
| | - Anna M Reingruber
- Research & Development, Weed Control Bayer AG, Crop Science Division, Industriepark Höchst, 65926, Frankfurt am Main, Germany
| | - Bernd Laber
- Research & Development, Weed Control Bayer AG, Crop Science Division, Industriepark Höchst, 65926, Frankfurt am Main, Germany
| | - Jörg Freigang
- Research & Development, Hit Discovery Bayer AG, Crop Science Division, Alfred-Nobel-Straße 50, 40789, Monheim am Rhein, Germany
| | - Gudrun Lange
- Research & Development, Weed Control Bayer AG, Crop Science Division, Industriepark Höchst, 65926, Frankfurt am Main, Germany
| | - Dirk Schmutzler
- Research & Development, Weed Control Bayer AG, Crop Science Division, Industriepark Höchst, 65926, Frankfurt am Main, Germany
| | - Anu Machettira
- Research & Development, Weed Control Bayer AG, Crop Science Division, Industriepark Höchst, 65926, Frankfurt am Main, Germany
| | - Gilbert Besong
- Research & Development, Weed Control Bayer AG, Crop Science Division, Industriepark Höchst, 65926, Frankfurt am Main, Germany
| | - Thomas Magauer
- Institute of Organic Chemistry and Center for Molecular Biosciences, University of Innsbruck, Innrain 80-82, 6020, Innsbruck, Austria
| | - David M Barber
- Research & Development, Weed Control Bayer AG, Crop Science Division, Industriepark Höchst, 65926, Frankfurt am Main, Germany
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12
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Jo J, Kim J, Ibrahim L, Kumar M, Iaconelli J, Tran CS, Moon HR, Jung Y, Wiseman RL, Lairson LL, Chatterjee AK, Bollong MJ, Yun H. Optimization of 3-aminotetrahydrothiophene 1,1-dioxides with improved potency and efficacy as non-electrophilic antioxidant response element (ARE) activators. Bioorg Med Chem Lett 2023; 89:129306. [PMID: 37116763 PMCID: PMC10241094 DOI: 10.1016/j.bmcl.2023.129306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 04/08/2023] [Accepted: 04/24/2023] [Indexed: 04/30/2023]
Abstract
Activating NRF2-driven transcription with non-electrophilic small molecules represents an attractive strategy to therapeutically target disease states associated with oxidative stress and inflammation. In this study, we describe a campaign to optimize the potency and efficacy of a previously identified bis-sulfone based non-electrophilic ARE activator 2. This work identifies the efficacious analog 17, a compound with a non-cytotoxic profile in IMR32 cells, as well as ARE activators 18 and 22, analogs with improved cellular potency. In silico drug-likeness prediction suggested the optimized bis-sulfones 17, 18, and 22 will likely be of pharmacological utility.
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Affiliation(s)
- Jeyun Jo
- College of Pharmacy, Pusan National University, Busan 46241, Republic of Korea
| | - Jisu Kim
- College of Pharmacy, Pusan National University, Busan 46241, Republic of Korea
| | - Lara Ibrahim
- Department of Chemistry, The Scripps Research Institute, La Jolla, CA 92037, United States; Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA 92037, United States
| | - Manoj Kumar
- California Institute for Biomedical Research, La Jolla, CA 92037, United States
| | - Jonathan Iaconelli
- Department of Chemistry, The Scripps Research Institute, La Jolla, CA 92037, United States
| | - Cong So Tran
- College of Pharmacy, Pusan National University, Busan 46241, Republic of Korea
| | - Hyung Ryong Moon
- College of Pharmacy, Pusan National University, Busan 46241, Republic of Korea; Research Institute for Drug Development, Pusan National University, Busan 46241, Republic of Korea
| | - Yunjin Jung
- College of Pharmacy, Pusan National University, Busan 46241, Republic of Korea; Research Institute for Drug Development, Pusan National University, Busan 46241, Republic of Korea
| | - R Luke Wiseman
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA 92037, United States
| | - Luke L Lairson
- Department of Chemistry, The Scripps Research Institute, La Jolla, CA 92037, United States
| | - Arnab K Chatterjee
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA 92037, United States
| | - Michael J Bollong
- Department of Chemistry, The Scripps Research Institute, La Jolla, CA 92037, United States.
| | - Hwayoung Yun
- College of Pharmacy, Pusan National University, Busan 46241, Republic of Korea; Research Institute for Drug Development, Pusan National University, Busan 46241, Republic of Korea.
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13
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de Souza TA, Rodrigues GCS, de Souza PHN, Abreu LS, Pereira LCO, da Silva MS, Tavares JF, Scotti L, Scotti MT. Mass Spectrometry-Based Investigation of Sugarcane Exposed to Five Different Pesticides. Life (Basel) 2023; 13:life13041034. [PMID: 37109563 PMCID: PMC10145413 DOI: 10.3390/life13041034] [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: 02/10/2023] [Revised: 04/01/2023] [Accepted: 04/12/2023] [Indexed: 04/29/2023] Open
Abstract
The use of agrochemicals has become a standard practice worldwide to ensure the productivity and quality of sugarcane crops. This study aimed to analyze the metabolic changes in sugarcane culms treated with five different nematicides. The experimental design was randomized in blocks, and agro-industrial and biometric variables were evaluated. The samples were extracted and then analyzed using LC-MS, LC-MS/MS, and LC-HRMS. The data obtained were submitted to statistical methods (PCA and PLS). Fragmentation patterns, retention time, and UV absorptions of the main features were analyzed. The plantations treated with carbosulfan (T4) obtained higher agricultural productivity and total recoverable sugar (TRS), while the use of benfuracarb (T3) was associated with lower growth and lower TRS. Statistical analysis revealed the contribution of the features at m/z 353 and m/z 515, assigned as chlorogenic acids, which discriminated the groups. The MS profile also supported the occurrence of flavonoids (C-glycosides and O-glycosides) in the samples.
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Affiliation(s)
- Thalisson A de Souza
- Multi-User Laboratory for Characterization and Analysis, Program of Natural and Synthetic Bioactive Products (PgPNSB), Health Sciences Center, Federal University of Paraíba, João Pessoa 58051-900, PB, Brazil
| | - Gabriela C S Rodrigues
- Laboratory of Cheminformatics, Program of Natural and Synthetic Bioactive Products (PgPNSB), Health Sciences Center, Federal University of Paraíba, João Pessoa 58051-900, PB, Brazil
| | - Pedro H N de Souza
- Miriri Alimentos e Bioenergia S/A, Fazenda Miriri, Zona Rural, Santa Rita 58300-970, PB, Brazil
| | - Lucas S Abreu
- Department of Organic Chemistry, Fluminense Federal University, Niteroi 24220-900, RJ, Brazil
| | - Laiane C O Pereira
- Multi-User Laboratory for Characterization and Analysis, Program of Natural and Synthetic Bioactive Products (PgPNSB), Health Sciences Center, Federal University of Paraíba, João Pessoa 58051-900, PB, Brazil
| | - Marcelo S da Silva
- Multi-User Laboratory for Characterization and Analysis, Program of Natural and Synthetic Bioactive Products (PgPNSB), Health Sciences Center, Federal University of Paraíba, João Pessoa 58051-900, PB, Brazil
| | - Josean F Tavares
- Multi-User Laboratory for Characterization and Analysis, Program of Natural and Synthetic Bioactive Products (PgPNSB), Health Sciences Center, Federal University of Paraíba, João Pessoa 58051-900, PB, Brazil
| | - Luciana Scotti
- Laboratory of Cheminformatics, Program of Natural and Synthetic Bioactive Products (PgPNSB), Health Sciences Center, Federal University of Paraíba, João Pessoa 58051-900, PB, Brazil
| | - Marcus Tullius Scotti
- Laboratory of Cheminformatics, Program of Natural and Synthetic Bioactive Products (PgPNSB), Health Sciences Center, Federal University of Paraíba, João Pessoa 58051-900, PB, Brazil
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14
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Jin X, Sun T, Zhang X, Guo B, Cui J, Ling Y, Zhang L, Yang Q, Chen W, Yang X. Structure-Based Virtual Screening of Natural Products and Optimization for the Design and Synthesis of Novel CeCht1 Inhibitors as Nematicide Candidates. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:244-254. [PMID: 36579419 DOI: 10.1021/acs.jafc.2c06516] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Nematode chitinases are critical components of the nematode life cycle, and CeCht1 is a potential target for developing novel nematicides. Herein, lunidonine, a natural quinoline alkaloid, was first discovered to have inhibitory activity against CeCht1, which was acquired from a library of over 16,000 natural products using a structure-based virtual screening methodology. A pocket-based lead optimization strategy was employed based on the predicted binding mode of lunidonine. Subsequently, a series of benzo[d][1,3]dioxole-5-carboxylate derivatives were designed and synthesized, and their inhibitory activities against CeCht1 as well as in vitro nematicidal activities against Caenorhabditis elegans were assessed. The analysis of structure-activity relationship and inhibitory mechanisms provided insights into their interactions with the CeCht1 active site, which could facilitate future research in improving the potency of the inhibitory activity. Especially, compound a12 interacted well with CeCht1 and exhibited excellent in vitro nematicidal activity against C. elegans with a LC50 value of 41.54 mg/L, suggesting that it could be a promising candidate for a novel chemical nematicide targeting CeCht1. The known binding modes and structural features of these inhibitors will contribute to the design of stronger CeCht1-based nematicides to control nematodes in agriculture.
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Affiliation(s)
- Xiaoyu Jin
- Innovation Center of Pesticide Research. Department of Applied Chemistry, College of Science, China Agricultural University, Beijing100193, China
| | - Tengda Sun
- Innovation Center of Pesticide Research. Department of Applied Chemistry, College of Science, China Agricultural University, Beijing100193, China
| | - Xiaoming Zhang
- Innovation Center of Pesticide Research. Department of Applied Chemistry, College of Science, China Agricultural University, Beijing100193, China
| | - Bingbo Guo
- Innovation Center of Pesticide Research. Department of Applied Chemistry, College of Science, China Agricultural University, Beijing100193, China
| | - Jialin Cui
- Innovation Center of Pesticide Research. Department of Applied Chemistry, College of Science, China Agricultural University, Beijing100193, China
| | - Yun Ling
- Innovation Center of Pesticide Research. Department of Applied Chemistry, College of Science, China Agricultural University, Beijing100193, China
| | - Li Zhang
- Innovation Center of Pesticide Research. Department of Applied Chemistry, College of Science, China Agricultural University, Beijing100193, China
| | - Qing Yang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing100193, China
| | - Wei Chen
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing100193, China
| | - Xinling Yang
- Innovation Center of Pesticide Research. Department of Applied Chemistry, College of Science, China Agricultural University, Beijing100193, China
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