1
|
İnak E, De Rouck S, Demirci B, Dermauw W, Geibel S, Van Leeuwen T. A novel target-site mutation (H146Q) outside the ubiquinone binding site of succinate dehydrogenase confers high levels of resistance to cyflumetofen and pyflubumide in Tetranychus urticae. INSECT BIOCHEMISTRY AND MOLECULAR BIOLOGY 2024; 170:104127. [PMID: 38657708 DOI: 10.1016/j.ibmb.2024.104127] [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: 03/09/2024] [Revised: 04/19/2024] [Accepted: 04/19/2024] [Indexed: 04/26/2024]
Abstract
Mitochondrial electron transfer inhibitors at complex II (METI-II), also referred to as succinate dehydrogenase inhibitors (SDHI), represent a recently developed class of acaricides encompassing cyflumetofen, cyenopyrafen, pyflubumide and cyetpyrafen. Despite their novelty, resistance has already developed in the target pest, Tetranychus urticae. In this study a new mutation, H146Q in a highly conserved region of subunit B of complex II, was identified in a T. urticae population resistant to all METI-IIs. In contrast to previously described mutations, H146Q is located outside the ubiquinone binding site of complex II. Marker-assisted backcrossing of this mutation in a susceptible genetic background validated its association with resistance to cyflumetofen and pyflubumide, but not cyenopyrafen or cyetpyrafen. Biochemical assays and the construction of inhibition curves with isolated mitochondria corroborated this selectivity. In addition, phenotypic effects of H146Q, together with the previously described H258L, were further examined via CRISPR/Cas9 gene editing. Although both mutations were successfully introduced into a susceptible T. urticae population, the H146Q gene editing event was only recovered in individuals already harboring the I260V mutation, known to confer resistance towards cyflumetofen. The combination of H146Q + I260V conferred high resistance levels to all METI-II acaricides with LC50 values over 5000 mg a.i./L for cyflumetofen and pyflubumide. Similarly, the introduction of H258L via gene editing resulted in high resistance levels to all tested acaricides, with extreme LC50 values (>5000 mg a.i./L) for cyenopyrafen and cyetpyrafen, but lower resistance levels for pyflubumide and cyflumetofen. Together, these findings indicate that different mutations result in a different cross-resistance spectrum, probably also reflecting subtle differences in the binding mode of complex II acaricides.
Collapse
Affiliation(s)
- Emre İnak
- Laboratory of Agrozoology, Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000, Ghent, Belgium; Department of Plant Protection, Faculty of Agriculture, Ankara University, 06135, Ankara, Turkey
| | - Sander De Rouck
- Laboratory of Agrozoology, Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000, Ghent, Belgium
| | - Berke Demirci
- Graduate School of Natural and Applied Sciences, Ankara University, 06110, Ankara, Turkey
| | - Wannes Dermauw
- Laboratory of Agrozoology, Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000, Ghent, Belgium
| | - Sven Geibel
- Bayer AG, Crop Science Division, Alfred-Nobel-Straße 50, 40789, Monheim, Germany
| | - Thomas Van Leeuwen
- Laboratory of Agrozoology, Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000, Ghent, Belgium.
| |
Collapse
|
2
|
Zhao Y, Ye F, Fu Y. Herbicide Safeners: From Molecular Structure Design to Safener Activity. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:2451-2466. [PMID: 38276871 DOI: 10.1021/acs.jafc.3c08923] [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: 01/27/2024]
Abstract
Herbicide safeners, highly effective antidotes, find widespread application in fields for alleviating the phytotoxicity of herbicides to crops. Designing new herbicide safeners remains a notable issue in pesticide research. This review focuses on discussing and summarizing the structure-activity relationships, molecular structures, physicochemical properties, and molecular docking of herbicide safeners in order to explore how different structures affect the safener activities of target compounds. It also provides insights into the application prospects of computer-aided drug design for designing and synthesizing new safeners in the future.
Collapse
Affiliation(s)
- Yaning Zhao
- Department of Chemistry, College of Arts and Sciences, Northeast Agricultural University, Harbin 150030, China
| | - Fei Ye
- Department of Chemistry, College of Arts and Sciences, Northeast Agricultural University, Harbin 150030, China
| | - Ying Fu
- Department of Chemistry, College of Arts and Sciences, Northeast Agricultural University, Harbin 150030, China
| |
Collapse
|
3
|
Zhou C, Li Z, Qian X, Cheng J, Maienfisch P. Novel Acaricidal Silico-Containing Pyrazolyl Acrylonitrile Derivatives Identified through Rational Carbon-Silicon Bioisosteric Replacement Strategy. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:18239-18249. [PMID: 37722018 DOI: 10.1021/acs.jafc.3c03898] [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: 09/20/2023]
Abstract
The identification of novel pyrazolyl acrylonitrile acaricides with improved properties is of great value for the control of phytophagous mites. A series of innovative silicon-containing pyrazolyl acrylonitriles were rationally designed by applying a bioisosteric carbon-silicon replacement strategy and prepared based on novel synthetic methodology. As a result of our research, we discovered compound A25 which possesses outstanding acaricidal activity. With an LC50 value of 0.062 mg/L, compound A25 was found to be 2.3-fold and 1.9-fold more potent than the commercial acaricides cyenopyrafen and cyetpyrafen, respectively. Enzymatic inhibitory assay indicated that the active principle M1 of compound A25 possesses an IC50 value of 2.32 μM against Tetranychus cinnabarinus SDH, which was about twofold superior compared to the active metabolites of cyenopyrafen (IC50 = 4.72 μM). Molecular docking study showed that the active metabolites 2 and 3 and their corresponding silicon counterparts form H-bonds and cation-π interaction with the residues of Trp165, Tyr433, and Arg279.
Collapse
Affiliation(s)
- Cong Zhou
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
| | - Zhong Li
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
| | - Xuhong Qian
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200241, China
| | - Jiagao Cheng
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
| | - Peter Maienfisch
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
- CreInSol MCB, Aegertenstrasse 21, CH-4118 Rodersdorf, Switzerland
| |
Collapse
|
4
|
Yu L, Liu H, Yu M, Zhang Q, Chou J, Wu Y. Particle Size Effect of Cyetpyrafen Formulation in the Pesticide Transmission Process and Its Impact on Biological Activity. Molecules 2023; 28:7432. [PMID: 37959851 PMCID: PMC10648920 DOI: 10.3390/molecules28217432] [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: 10/01/2023] [Revised: 10/25/2023] [Accepted: 11/03/2023] [Indexed: 11/15/2023] Open
Abstract
Cyetpyrafen is a compound that lacks inherent uptake and systemic translocation activity. If mites do not come into direct contact with the pesticide solution on leaves, the efficacy cannot be achieved. Controlling the particle size can potentially play a crucial role in the manifestation of efficacy. In this study, high-throughput formulation technology was used to systematically screen a large number of adjuvants to obtain cyetpyrafen formulations. The particle size of the active ingredient in the formulation was measured. By examining the dynamic light scattering and contact angle, we simulated the actual process of the efficacy transmission of cyetpyrafen formulations against Tetranychus cinnabarinus. Our results showed that the activity of cyetpyrafen increases as the particle size decreases, suggesting that reducing the particle size can enhance the coverage and deposition on crop leaves, and further improve the dispersion efficiency and enhance spreading capabilities. Furthermore, controlling the particle size at 160 nm resulted in an LC50 value of 0.2026, which is approximately double than that of the commercial product. As a novel pesticide for mites, our study presents the most effective cyetpyrafen formulation in practice. Our findings provide valuable insights into controlling other mite species that pose a threat to agricultural products.
Collapse
Affiliation(s)
- Lu Yu
- Plant Protection College, Shenyang Agricultural University, No. 120 Dongling Road, Shenyang 110866, China; (L.Y.); (H.L.); (M.Y.)
- State Laboratory of the Discovery and Development of Novel Pesticide, Shenyang Sinochem Agrochemicals R&D Co., Ltd., No. 8 Shenliao East Road, Shenyang 110021, China
| | - He Liu
- Plant Protection College, Shenyang Agricultural University, No. 120 Dongling Road, Shenyang 110866, China; (L.Y.); (H.L.); (M.Y.)
| | - Miao Yu
- Plant Protection College, Shenyang Agricultural University, No. 120 Dongling Road, Shenyang 110866, China; (L.Y.); (H.L.); (M.Y.)
| | - Qi Zhang
- Plant Protection College, Shenyang Agricultural University, No. 120 Dongling Road, Shenyang 110866, China; (L.Y.); (H.L.); (M.Y.)
| | - Jingyu Chou
- State Laboratory of the Discovery and Development of Novel Pesticide, Shenyang Sinochem Agrochemicals R&D Co., Ltd., No. 8 Shenliao East Road, Shenyang 110021, China
| | - Yuanhua Wu
- Plant Protection College, Shenyang Agricultural University, No. 120 Dongling Road, Shenyang 110866, China; (L.Y.); (H.L.); (M.Y.)
| |
Collapse
|
5
|
Li R, Wang S, Chang J, Pan X, Dong F, Li Z, Zheng Y, Li Y. Insight into the uptake and metabolism of a new insecticide cyetpyrafen in plants. ENVIRONMENT INTERNATIONAL 2022; 169:107522. [PMID: 36137426 DOI: 10.1016/j.envint.2022.107522] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 08/19/2022] [Accepted: 09/12/2022] [Indexed: 06/16/2023]
Abstract
As new agrochemicals are continuously introduced into agricultural systems, it is essential to investigate their uptake and metabolism by plants to better evaluate their fate and accumulation in crops and the subsequent risks to human exposure. In this study, the uptake and elimination kinetics and transformation of a novel insecticide, cyetpyrafen, in two model crops (lettuce and rice) were first evaluated by hydroponic experiments. Cyetpyrafen was rapidly taken up by plant roots and reached a steady state within 24 h, and it was preferentially accumulated in root parts with root concentration factors up to 2670 mL/g. An uptake mechanism study suggested that root uptake of cyetpyrafen was likely to be dominated by passive diffusion and was difficult to transport via xylem and phloem. Ten phase I and three phase II metabolites of cyetpyrafen were tentatively identified in the hydroponic-plant system through a nontarget screening strategy. The structures of two main metabolites (M-309 and M-391) were confirmed by synthesized standards. The metabolic pathways were proposed including hydroxylation, hydrolysis, dehydrogenation, dehydration and conjugation, which were assumed to be regulated by cytochrome P450, carboxylesterase, glycosyltransferase, glutathione S-transferases and peroxidase. Cyetpyrafen and its main metabolites (M-409, M-309 and M-391) were estimated to be harmful/toxic toward nontarget organisms by theoretical calculation. The high bioaccumulation and extensive transformation of cyetpyrafen highlighted the necessity for systematically assessing the crop uptake and metabolism of new agrochemicals.
Collapse
Affiliation(s)
- Runan Li
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
| | - Sijia Wang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
| | - Jinhe Chang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
| | - Xinglu Pan
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
| | - Fengshou Dong
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
| | - Zhiyuan Li
- Shanghai AB Sciex Analytical Instrument Trading Co, Ltd, Beijing 100015, PR China
| | - Yongquan Zheng
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
| | - Yuanbo Li
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China.
| |
Collapse
|
6
|
Feng J, Wang Y, Gao L, Yu Y, Baell JB, Huang F. Electrochemical Synthesis of Polysubstituted Sulfonated Pyrazoles via Cascade Intermolecular Condensation, Radical-Radical Cross Coupling Sulfonylation, and Pyrazole Annulation. J Org Chem 2022; 87:13138-13153. [PMID: 36166815 DOI: 10.1021/acs.joc.2c01609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Electrochemical synthesis of polysubstituted sulfonated pyrazoles from enaminones and sulfonyl hydrazides was established under metal-free, exogenous-oxidant-free, and mild conditions. By judicious choice of different electrochemical reaction conditions, NH2-functionalized enaminones or N,N-disubstituted enaminones can react with aryl/alkyl sulfonyl hydrazides to afford tetra- or trisubstituted sulfonated pyrazoles in moderate to good yields, respectively. The gram-scale electrochemical transformation demonstrated the efficiency and practicability of this synthetic strategy. In addition, the sulfonated NH-pyrazole can be obtained via the dissociation of the N-tosyl group. Mechanistic studies reveal that the electrochemical cascade reaction synthesis of polysubstituted sulfonated pyrazoles proceeded via the sequence of intermolecular condensation, radical-radical cross coupling sulfonylation, and pyrazole annulation.
Collapse
Affiliation(s)
- Jiajun Feng
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 211816, PR China
| | - Yuzhi Wang
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 211816, PR China
| | - Luoyu Gao
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 211816, PR China
| | - Yang Yu
- School of Environmental Science and Engineering, Nanjing Tech University, Nanjing 211816, PR China
| | - Jonathan B Baell
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 211816, PR China.,Medicinal Chemistry Theme, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria 3052, Australia
| | - Fei Huang
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 211816, PR China.,School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210023, PR China
| |
Collapse
|
7
|
Zhou C, Wang X, Quan X, Cheng J, Li Z, Maienfisch P. Silicon-Containing Complex II Acaricides─Design, Synthesis, and Pharmacological Optimization. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:11063-11074. [PMID: 35575634 DOI: 10.1021/acs.jafc.2c00804] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Bioisosteric replacement has been proven to be a powerful strategy in life science research. In this review, general aspects of carbon-silicon bioisosteric substitution and its applications in pharmaceutical and crop protection research are described. Carbon and their silicon analogues possess similar intrinsic properties. Replacing carbon with silicon in pharmaceuticals and pesticides has shown to result in positive effects on efficacy and selectivity, physicochemical properties, and bioavailability and also to eliminate or improve human or environmental safety properties as well as to provide novelty and new intellectual property in many cases. Furthermore, the application of carbon-silicon substitution in the search for new complex II acaricides is highlighted. This research led to the discovery of sila-cyflumetofen 23a and other silicon-containing analogues of cyflumetofen that match or exceed the acaricidal activity of cyflumetofen. The molecular design strategy, synthetic aspects, biological activity, computational modeling work, and structure-activity relationships will be discussed.
Collapse
Affiliation(s)
- Cong Zhou
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, People's Republic of China
| | - Xin Wang
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, People's Republic of China
| | - 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
| | - Jiagao Cheng
- 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
| | - 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 MCB, CH-4118 Rodersdorf, Switzerland
| |
Collapse
|
8
|
Bethencourt-Estrella CJ, Delgado-Hernández S, López-Arencibia A, San Nicolás-Hernández D, Tejedor D, García-Tellado F, Lorenzo-Morales J, Piñero JE. In vitro activity and cell death mechanism induced by acrylonitrile derivatives against Leishmania amazonensis. Bioorg Chem 2022; 124:105872. [DOI: 10.1016/j.bioorg.2022.105872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 05/06/2022] [Accepted: 05/10/2022] [Indexed: 11/24/2022]
|
9
|
Chen JC, Ma ZZ, Gong YJ, Cao LJ, Wang JX, Guo SK, Hoffmann AA, Wei SJ. Toxicity and Control Efficacy of an Organosilicone to the Two-Spotted Spider Mite Tetranychus urticae and Its Crop Hosts. INSECTS 2022; 13:insects13040341. [PMID: 35447783 PMCID: PMC9028738 DOI: 10.3390/insects13040341] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Revised: 03/19/2022] [Accepted: 03/29/2022] [Indexed: 02/04/2023]
Abstract
Organosilicone molecules represent important components of surfactants added to pesticides to improve pest control efficiency, but these molecules also have pesticidal properties in their own right. Here, we examined toxicity and control efficacy of Silwet 408, a trisiloxane ethoxylate-based surfactant, to the two-spotted spider mite (TSSM), Tetranychus urticae and its crop hosts. Silwet 408 was toxic to nymphs and adults of TSSM but did not affect eggs. Field trials showed that the control efficacy of 1000 mg/L Silwet 408 aqueous solution reached 96% one day after spraying but declined to 54% 14 days after spraying, comparable to 100 mg/L cyetpyrafen, a novel acaricide. A second spraying of 1000 mg/L Silwet 408 maintained control efficacy at 97% when measured 14 days after spraying. However, Silwet 408 was phytotoxic to eggplant, kidney bean, cucumber, and strawberry plants, although phytotoxicity to strawberry plants was relatively low and declined further seven days after application. Our study showed that while the organosilicone surfactant Silwet 408 could be used to control the TSSM, its phytotoxicity to crops should be considered.
Collapse
Affiliation(s)
- Jin-Cui Chen
- Institute of Plant Protection, Beijing Academy of Agricultural and Forestry Sciences, 9 Shuguanghuayuan Middle Road, Haidian District, Beijing 100097, China; (J.-C.C.); (Z.-Z.M.); (Y.-J.G.); (L.-J.C.); (J.-X.W.); (S.-K.G.)
| | - Zhong-Zheng Ma
- Institute of Plant Protection, Beijing Academy of Agricultural and Forestry Sciences, 9 Shuguanghuayuan Middle Road, Haidian District, Beijing 100097, China; (J.-C.C.); (Z.-Z.M.); (Y.-J.G.); (L.-J.C.); (J.-X.W.); (S.-K.G.)
| | - Ya-Jun Gong
- Institute of Plant Protection, Beijing Academy of Agricultural and Forestry Sciences, 9 Shuguanghuayuan Middle Road, Haidian District, Beijing 100097, China; (J.-C.C.); (Z.-Z.M.); (Y.-J.G.); (L.-J.C.); (J.-X.W.); (S.-K.G.)
| | - Li-Jun Cao
- Institute of Plant Protection, Beijing Academy of Agricultural and Forestry Sciences, 9 Shuguanghuayuan Middle Road, Haidian District, Beijing 100097, China; (J.-C.C.); (Z.-Z.M.); (Y.-J.G.); (L.-J.C.); (J.-X.W.); (S.-K.G.)
| | - Jia-Xu Wang
- Institute of Plant Protection, Beijing Academy of Agricultural and Forestry Sciences, 9 Shuguanghuayuan Middle Road, Haidian District, Beijing 100097, China; (J.-C.C.); (Z.-Z.M.); (Y.-J.G.); (L.-J.C.); (J.-X.W.); (S.-K.G.)
| | - Shao-Kun Guo
- Institute of Plant Protection, Beijing Academy of Agricultural and Forestry Sciences, 9 Shuguanghuayuan Middle Road, Haidian District, Beijing 100097, China; (J.-C.C.); (Z.-Z.M.); (Y.-J.G.); (L.-J.C.); (J.-X.W.); (S.-K.G.)
| | - Ary A. Hoffmann
- School of BioSciences, Bio21 Institute, The University of Melbourne, Parkville 3052, Australia;
| | - Shu-Jun Wei
- Institute of Plant Protection, Beijing Academy of Agricultural and Forestry Sciences, 9 Shuguanghuayuan Middle Road, Haidian District, Beijing 100097, China; (J.-C.C.); (Z.-Z.M.); (Y.-J.G.); (L.-J.C.); (J.-X.W.); (S.-K.G.)
- Correspondence: ; Tel.: +86-10-5150-3439
| |
Collapse
|
10
|
Unsal Tan O, Zengin M. Insights into the chemistry and therapeutic potential of acrylonitrile derivatives. Arch Pharm (Weinheim) 2021; 355:e2100383. [PMID: 34763365 DOI: 10.1002/ardp.202100383] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 10/21/2021] [Accepted: 10/22/2021] [Indexed: 12/20/2022]
Abstract
Acrylonitrile is a fascinating scaffold widely found in many natural products, drugs, and drug candidates with various biological activities. Several drug molecules such as entacapone, rilpivirine, teriflunomide, and so forth, bearing an acrylonitrile moiety have been marketed. In this review, diverse synthetic strategies for constructing desired acrylonitriles are discussed, and the different biological activities and medicinal significance of various acrylonitrile derivatives are critically evaluated. The information gathered is expected to provide rational guidance for the development of clinically useful agents from acrylonitriles.
Collapse
Affiliation(s)
- Oya Unsal Tan
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Hacettepe University, Ankara, Turkey
| | - Merve Zengin
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Hacettepe University, Ankara, Turkey
| |
Collapse
|
11
|
Ye R, Zhu M, Yan X, Long Y, Xia Y, Zhou X. Pd(II)-Catalyzed C═C Bond Cleavage by a Formal Group-Exchange Reaction. ACS Catal 2021. [DOI: 10.1021/acscatal.1c01850] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Runyou Ye
- College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, P. R. China
| | - Maoshuai Zhu
- College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, P. R. China
| | - Xufei Yan
- West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, P. R. China
| | - Yang Long
- College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, P. R. China
| | - Ying Xia
- West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, P. R. China
| | - Xiangge Zhou
- College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, P. R. China
| |
Collapse
|
12
|
Acrylonitrile Derivatives against Trypanosoma cruzi: In Vitro Activity and Programmed Cell Death Study. Pharmaceuticals (Basel) 2021; 14:ph14060552. [PMID: 34207767 PMCID: PMC8228537 DOI: 10.3390/ph14060552] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Revised: 06/02/2021] [Accepted: 06/04/2021] [Indexed: 01/29/2023] Open
Abstract
The neglected infection known as Chagas disease, caused by the protozoan parasite Trypanosoma cruzi, results in more than 7000 deaths per year, with an increasing number of cases in non-endemic areas such as Europe or the United States. Moreover, with the current available therapy, only two compounds which are active against the acute phase of the disease are readily available. In addition, these therapeutic agents display multiple undesired side effects such as high toxicity, they are expensive, the treatment is lengthy and the resistant strain has emerged. Therefore, there is a need to find new compounds against Chagas disease which should be active against the parasite but also cause low toxicity to the patients. In the present work, the activity of novel acrylonitriles against Trypanosoma cruzi was evaluated as well as the analysis of the physiological events induced in the treated parasites related to the cell death process. Hence, the characteristic features of an apoptosis-like process such as chromatin condensation and mitochondrial membrane potential, among others, were studied. From the 32 compounds tested against the epimastigote stage of T. cruzi, 11 were selected based on their selectivity index to determine if these compounds were able to induce programmed cell death (PCD) in the treated parasites. Furthermore, acrylonitriles Q5, Q7, Q19, Q27 and Q29 were shown to trigger physiological events related in the PCD. Therefore, this study highlights the therapeutic potential of acrylonitriles as novel trypanocidal agents.
Collapse
|
13
|
Qayyoum MA, Song ZW, Zhang BX, Li DS, Khan BS. Behavioral response of Panonychus citri (McGregor) (Acari: Tetranychidae) to synthetic chemicals and oils. PeerJ 2021; 9:e10899. [PMID: 33868798 PMCID: PMC8029669 DOI: 10.7717/peerj.10899] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Accepted: 01/13/2021] [Indexed: 11/20/2022] Open
Abstract
Background Panonychus citri (McGregor) (Acari: Tetranychidae) population outbreaks after the citrus plantation's chemical application is a common observation. Dispersal behavior is an essential tool to understand the secondary outbreak of P. citri population. Therefore, in the current study, the dispersal activity of P. citri was observed on the leaf surfaces of Citrus reticulata (Rutaceae) treated with SYP-9625, abamectin, vegetable oil, and EnSpray 99. Method Mites were released on the first (apex) leaf of the plant (adaxial surface) and data were recorded after 24 h. The treated, untreated, and half-treated data were analyzed by combining the leaf surfaces (adaxial right, adaxial left, abaxial right, and abaxial left). All experiments were performed in open-air environmental conditions. Results The maximum number of mites was captured on the un-treated or half-treated surfaces due to chemicals repellency. Chemical bioassays of the free-choice test showed that all treatments significantly increased the mortality of P. citri depending on application method and concentration. A significant number of mites repelled away from treated surfaces and within treated surfaces except adaxial left and abaxial right surfaces at LC30. In the no-choice test, SYP-9625 gave maximum mortality and dispersal by oils than others. No significant differences were observed within the adaxial and abaxial except abaxial surface at LC30. Therefore, the presence of tested acaricides interferes with P. citri dispersal within leaf surfaces of plantations depending on the mites released point and a preferred site for feeding.
Collapse
Affiliation(s)
- Muhammad Asif Qayyoum
- Guangdong Provincial Key Laboratory of High Technology for Plant Protection/Plant Protection Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou City, Guangdong, China.,Department of Plant Protection, Ghazi University, Dera Ghazi Khan, Dera Ghazi Khan, Punjab, Pakistan
| | - Zi-Wei Song
- Guangdong Provincial Key Laboratory of High Technology for Plant Protection/Plant Protection Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou City, Guangdong, China
| | - Bao-Xin Zhang
- Guangdong Provincial Key Laboratory of High Technology for Plant Protection/Plant Protection Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou City, Guangdong, China
| | - Dun-Song Li
- Guangdong Provincial Key Laboratory of High Technology for Plant Protection/Plant Protection Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou City, Guangdong, China
| | - Bilal Saeed Khan
- Department of Entomology, University of Agriculture Faisalabad, Faisalabad, Punjab, Pakistan
| |
Collapse
|
14
|
Li Z, Cong Y, Ma X, Wei Z, Cheng C, Shi F, Li S. Absolute configuration of four chiral isomers of pyrisoxazole and their bioactivity. PEST MANAGEMENT SCIENCE 2020; 76:3780-3784. [PMID: 32452152 DOI: 10.1002/ps.5928] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 05/06/2020] [Accepted: 05/25/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Pyrisoxazole is a fungicide that has two chiral carbon atoms and four isomers: (3S,5R)-, (3R,5S)-, (3S,5S)-, and (3R,5R)-pyrisoxazole. RESULTS Pure crystals of four pyrisoxazole isomers were prepared by chiral separation and single-crystal cultivation. Their absolute configurations were established by X-ray single crystal diffraction analysis. Bioassays indicated that compound (3S,5R)-pyrisoxazole showed excellent fungicidal activity with a median effective concentration (EC50 ) value of 0.14 μg mL-1 and protective activity with an EC50 value of 13.29 μg mL-1 . These values are superior to the commercial fungicides boscalid and racemic pyrisoxazole. CONCLUSIONS The biological activity of racemic pyrisoxazole is due almost exclusively to the isomer (3S,5R)-pyrisoxazole; the other three isomers had very low activity. © 2020 Society of Chemical Industry.
Collapse
Affiliation(s)
- Ziliang Li
- School of Material Science and Engineering, Shenyang University of Technology, Shenyang, P. R. China
- Shenyang SCIENCREAT Chemicals Co., Ltd., Shenyang, P. R. China
| | - Yunbo Cong
- School of Material Science and Engineering, Shenyang University of Technology, Shenyang, P. R. China
| | - Xiaohua Ma
- School of Material Science and Engineering, Shenyang University of Technology, Shenyang, P. R. China
- Chemical Industry Safety Technology & Engineering Center, Shenyang Research Institute of Chemical Industry, Shenyang, P. R. China
| | - Zhenyun Wei
- School of Material Science and Engineering, Shenyang University of Technology, Shenyang, P. R. China
- Chemical Industry Safety Technology & Engineering Center, Shenyang Research Institute of Chemical Industry, Shenyang, P. R. China
| | - Chunsheng Cheng
- School of Material Science and Engineering, Shenyang University of Technology, Shenyang, P. R. China
- Chemical Industry Safety Technology & Engineering Center, Shenyang Research Institute of Chemical Industry, Shenyang, P. R. China
| | - Fanian Shi
- School of Material Science and Engineering, Shenyang University of Technology, Shenyang, P. R. China
| | - Sanxi Li
- School of Material Science and Engineering, Shenyang University of Technology, Shenyang, P. R. China
| |
Collapse
|
15
|
Design, synthesis and acaricidal activities of Cyflumetofen analogues based on carbon-silicon isosteric replacement. Bioorg Med Chem 2020; 28:115509. [DOI: 10.1016/j.bmc.2020.115509] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Revised: 04/07/2020] [Accepted: 04/14/2020] [Indexed: 12/17/2022]
|
16
|
Sivaramakarthikeyan R, Iniyaval S, Lim WM, Hii LW, Mai CW, Ramalingan C. Pyrazolylphenanthroimidazole heterocycles: synthesis, biological and molecular docking studies. NEW J CHEM 2020. [DOI: 10.1039/d0nj02214d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The synthesis of a series of novel pyrazolylphenanthroimidazoles 6a–6j has been accomplished utilizing a multi-step synthetic protocol, and characterized through physical and spectral techniques.
Collapse
Affiliation(s)
- Ramar Sivaramakarthikeyan
- Department of Chemistry
- School of Advanced Sciences
- Kalasalingam Academy of Research and Education (Deemed to be University)
- Krishnankoil
- India
| | - Shunmugam Iniyaval
- Department of Chemistry
- School of Advanced Sciences
- Kalasalingam Academy of Research and Education (Deemed to be University)
- Krishnankoil
- India
| | - Wei-Meng Lim
- School of Pharmacy
- International Medical University
- Bukit Jalil
- Malaysia
| | - Ling-Wei Hii
- School of Pharmacy
- International Medical University
- Bukit Jalil
- Malaysia
| | - Chun-Wai Mai
- School of Pharmacy
- International Medical University
- Bukit Jalil
- Malaysia
- Center for Cancer and Stem Cell Research
| | - Chennan Ramalingan
- Department of Chemistry
- School of Advanced Sciences
- Kalasalingam Academy of Research and Education (Deemed to be University)
- Krishnankoil
- India
| |
Collapse
|
17
|
Westermeyer A, Guillamot G, Phansavath P, Ratovelomanana-Vidal V. Electrophilic ring fluorination of 3,5-disubstituted pyrazoles: application to the formal synthesis of a neprilysin inhibitor key intermediate. NEW J CHEM 2020. [DOI: 10.1039/d0nj05222a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The access to a new family of unusual 4-fluorinated pyrazoles bearing acetal moities at the 3- or 5-position has been achieved by electrophilic fluorination using Selectfluor® with yields up to 67%.
Collapse
Affiliation(s)
- Anne Westermeyer
- PSL University
- Chimie ParisTech-CNRS
- Institute of Chemistry for Life & Health Sciences
- CSB2D Team
- 75005 Paris
| | | | - Phannarath Phansavath
- PSL University
- Chimie ParisTech-CNRS
- Institute of Chemistry for Life & Health Sciences
- CSB2D Team
- 75005 Paris
| | | |
Collapse
|
18
|
Borra S, Borkotoky L, Newar UD, Kalwar A, Das B, Maurya RA. Visible light triggered photo-decomposition of vinyl azides to (E)-stilbene derivatives via 1,2-acyl migration. Org Biomol Chem 2019; 17:5971-5981. [PMID: 31165843 DOI: 10.1039/c9ob01035a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient photocatalyst-free visible light assisted synthetic route to various (E)-stilbene derivatives was developed. The reaction proceeds through a denitrogenative photo-decomposition of vinyl azides into 2H-azirines followed by neighboring amino group assisted ring opening, 1,2-acyl migration and enolization. The photochemical reaction offers light harvesting without any photocatalyst to access a wide variety of substituted (E)-stilbenes in moderate to high yields.
Collapse
Affiliation(s)
- Satheesh Borra
- Applied Organic Chemistry Group, Chemical Sciences & Technology Division, CSIR-North East Institute of Science & Technology (NEIST), Jorhat-785006, Assam, India.
| | | | | | | | | | | |
Collapse
|
19
|
Jiao J, Wang A, Chen M, Wang MQ, Yang CL. Novel 5-chloro-pyrazole derivatives containing a phenylhydrazone moiety as potent antifungal agents: synthesis, crystal structure, biological evaluation and a 3D-QSAR study. NEW J CHEM 2019. [DOI: 10.1039/c9nj00574a] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Novel 5-chloro-pyrazole derivatives containing a phenylhydrazone moiety were designed and synthesized. Some of the target compounds showed potent fungicidal activity. A 3D-QSAR study provides information for structural optimization.
Collapse
Affiliation(s)
- Jian Jiao
- Jiangsu Key Laboratory of Pesticide Science
- Nanjing Agricultural University
- Nanjing
- P. R. China
- Department of Chemistry
| | - An Wang
- Department of Chemistry
- College of Sciences
- Nanjing Agricultural University
- Nanjing
- P. R. China
| | - Min Chen
- Jiangsu Key Laboratory of Pesticide Science
- Nanjing Agricultural University
- Nanjing
- P. R. China
- Department of Chemistry
| | - Meng-Qi Wang
- Department of Chemistry
- College of Sciences
- Nanjing Agricultural University
- Nanjing
- P. R. China
| | - Chun-Long Yang
- Jiangsu Key Laboratory of Pesticide Science
- Nanjing Agricultural University
- Nanjing
- P. R. China
- Department of Chemistry
| |
Collapse
|
20
|
Ouyang J, Tian Y, Jiang C, Yang Q, Wang H, Li Q. Laboratory assays on the effects of a novel acaricide, SYP-9625 on Tetranychus cinnabarinus (Boisduval) and its natural enemy, Neoseiulus californicus (McGregor). PLoS One 2018; 13:e0199269. [PMID: 30395569 PMCID: PMC6218021 DOI: 10.1371/journal.pone.0199269] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Accepted: 10/15/2018] [Indexed: 11/22/2022] Open
Abstract
Objective Tetranychus cinnabarinus (Boisduval) is an agricultural mite pest threatens crops throughout the world, causing serious economic loses. Exploring the effects of acaricides on predatory mites is crucial for the combination of biological and chemical control of T. cinnabarinus. Neoseiulus californicus (McGregor) is one of the principal natural enemies of T. cinnabarinus, which can be applied in protected agriculture. In this study, the effects of sublethal concentrations of a new acaricide, SYP-9625 on two mite species, and the effects of the application concentration on predatory mite, N. californicus were assessed. The aim of the present study was to evaluate the effect of SYP-9625 on life parameters and predation capacity of N. californicus based on the concentration-response bioassay of T. cinnabarinus to explor the application of the new acaricide with natural enemy N. californicus. Method All of the experiments were conducted under laboratory conditions [25 ± 1°C, 16: 8 h (L: D) and 75 ± 5% RH]. The sublethal concentrations LC10 (0.375μg/mL) and the LC30 (0.841μg/mL) against T. cinnabarinus and the application concentration (100μg/mL) against N. californicus were used to evaluate the effects of SYP-9625 on population parameters of N. californicus based on an age-stage, two-sex life table and its predation capacity by functional response. Result cinnabarinus females treated with LC30 exhibited significantly reduced net reproductive rates (R0 = 11.02) in their offspring compared with females treated with LC10 (R0 = 14.96) and untreated females (R0 = 32.74). However, the intrinsic rate of increase (rm) and the finite rate of increase (λ) of N. californicus indicated that the application concentration of SYP-9625 had no significant negative effect on N. californicus eggs (rm = 0.277, λ = 1.319) compared to the control (rm = 0.292, λ = 1.338). Additionally, most population parameters of N. californicus showed a dose-dependent manner with the increase of the concentration of SYP-9625 against T. cinnabarinus. SYP-9625 also stimulated the control efficiency of N. californicus against immobile stages including eggs and larvae. Conclusion This study demonstrated that sublethal concentrations of SYP-9625 can inhibit the population growth of T. cinnabarinus. In addition, the sublethal concentrations and the application concentration showed no effect on the population growth of N. californicus. These two advantages described above showed great commercial potential of this new acaricide based on population parameters of the two mite species and predation capacity of the predatory mite under laboratory conditions.
Collapse
Affiliation(s)
- Jingqi Ouyang
- Department of Plant Protection, College of Agronomy, Sichuan Agricultural University, Chengdu, Sichuan, P. R. China
| | - Yajing Tian
- Department of Plant Protection, College of Agronomy, Sichuan Agricultural University, Chengdu, Sichuan, P. R. China
| | - Chunxian Jiang
- Department of Plant Protection, College of Agronomy, Sichuan Agricultural University, Chengdu, Sichuan, P. R. China
| | - Qunfang Yang
- Department of Plant Protection, College of Agronomy, Sichuan Agricultural University, Chengdu, Sichuan, P. R. China
| | - Haijian Wang
- Department of Plant Protection, College of Agronomy, Sichuan Agricultural University, Chengdu, Sichuan, P. R. China
| | - Qing Li
- Department of Plant Protection, College of Agronomy, Sichuan Agricultural University, Chengdu, Sichuan, P. R. China
- * E-mail:
| |
Collapse
|
21
|
Ye F, Ma P, Zhai Y, Yang F, Gao S, Zhao LX, Fu Y. Design, microwave-assisted synthesis, bioactivity and SAR of novel substituted 2-phenyl-2-cyclohexanedione enol ester derivatives. RSC Adv 2018; 8:19883-19893. [PMID: 35540959 PMCID: PMC9080744 DOI: 10.1039/c8ra02647e] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Accepted: 05/18/2018] [Indexed: 11/21/2022] Open
Abstract
Based on the structure–activity relationship and active substructure combination, a novel class of substituted 2-phenyl-2-cyclohexanedione enol ester derivatives was designed for use as potential herbicide safeners. A microwave-assisted synthetic route was developed for the substituted 2-phenyl-2-cyclohexenone enol ester derivatives via coupling and acylation reactions. In the modified protocol, the reactions were performed under microwave irradiation, resulting in significant improvements in the yields and reaction times. All of the structures were characterized using IR, 1H NMR, 13C NMR and HRMS spectroscopies. The bioassay results demonstrated that most of these compounds could alleviate clethodim injury to maize. Molecular docking modeling showed that the potential antagonism between compound 3(S24) and clethodim plays a key role in the metabolism of herbicides. This paper presents a new safener candidate for maize protection. Based on the structure–activity relationship and active substructure combination, a novel class of substituted 2-phenyl-2-cyclohexanedione enol ester derivatives was designed for use as potential herbicide safeners.![]()
Collapse
Affiliation(s)
- Fei Ye
- Department of Applied Chemistry
- College of Science
- Northeast Agricultural University
- Harbin
- P. R. China
| | - Peng Ma
- Department of Applied Chemistry
- College of Science
- Northeast Agricultural University
- Harbin
- P. R. China
| | - Yue Zhai
- Department of Applied Chemistry
- College of Science
- Northeast Agricultural University
- Harbin
- P. R. China
| | - Fei Yang
- Department of Applied Chemistry
- College of Science
- Northeast Agricultural University
- Harbin
- P. R. China
| | - Shuang Gao
- Department of Applied Chemistry
- College of Science
- Northeast Agricultural University
- Harbin
- P. R. China
| | - Li-Xia Zhao
- Department of Applied Chemistry
- College of Science
- Northeast Agricultural University
- Harbin
- P. R. China
| | - Ying Fu
- Department of Applied Chemistry
- College of Science
- Northeast Agricultural University
- Harbin
- P. R. China
| |
Collapse
|