1
|
Han X, Xu R, Gu S, Kong Y, Lou Y, Gao Y, Shang S, Song Z, Song J, Li J. Discovery of novel acrylopimaric acid triazole derivatives as promising antifungal agents. PEST MANAGEMENT SCIENCE 2024; 80:3988-3996. [PMID: 38529554 DOI: 10.1002/ps.8102] [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: 07/27/2023] [Revised: 02/27/2024] [Accepted: 03/22/2024] [Indexed: 03/27/2024]
Abstract
BACKGROUND To further develop potential natural fungicides, two series of new acrylopimaric acid triazole derivatives were synthesized, and their antifungal activities were tested and evaluated. RESULTS In vitro antifungal activity results indicated that compound 5m exhibited significant inhibitory activity against Rhizoctonia solani with an half maximal effective concentration (EC50) value of 1.528 mg/L. Its antifungal effect was comparable to that of the commercially available fungicide fluconazole, epoxiconazole and propiconazole (EC50 values of 1.441, 0.815 and 1.173 mg/L). Subsequently, in vivo studies were conducted on compound 5m, which revealed its significant protective and curative effects against R. solani. In addition, physiological and biochemical studies showed that compound 5m could disrupt the morphology and ultrastructure of R. solani mycelium, increase cell membrane permeability, inhibit ergosterol synthesis, and enhance the activity of defense enzymes in rice plants. Three-dimensional quantitative structure-activity relationship (3D-QSAR) studies revealed that the molecular structure significantly influenced the binding of compound 5m to the receptor, thereby enhancing its antifungal activity. CONCLUSION Compound 5m exhibits excellent antifungal activity against R. solani, making it a promising candidate fungicide for the prevention and control of R. solani. © 2024 Society of Chemical Industry.
Collapse
Affiliation(s)
- Xu Han
- Jiangsu Province Key Laboratory of Biomass Energy and Materials, College of Forestry, Northwest A&F University, Yangling, P. R. China
| | - Renle Xu
- Jiangsu Province Key Laboratory of Biomass Energy and Materials, College of Forestry, Northwest A&F University, Yangling, P. R. China
| | - Shihao Gu
- Jiangsu Province Key Laboratory of Biomass Energy and Materials, College of Forestry, Northwest A&F University, Yangling, P. R. China
| | - Yue Kong
- Jiangsu Province Key Laboratory of Biomass Energy and Materials, College of Forestry, Northwest A&F University, Yangling, P. R. China
| | - Yuhang Lou
- Jiangsu Province Key Laboratory of Biomass Energy and Materials, College of Forestry, Northwest A&F University, Yangling, P. R. China
| | - Yanqing Gao
- College of Plant Protection, Northwest A&F University, Yangling, P. R. China
| | - Shibin Shang
- Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry, Nanjing, P. R. China
| | - Zhanqian Song
- Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry, Nanjing, P. R. China
| | - Jie Song
- Department of Chemistry and Biochemistry, University of Michigan-Flint, Flint, MI, USA
| | - Jian Li
- Jiangsu Province Key Laboratory of Biomass Energy and Materials, College of Forestry, Northwest A&F University, Yangling, P. R. China
| |
Collapse
|
2
|
Saeedian Moghadam E, Bonyasi F, Bayati B, Sadeghi Moghadam M, Amini M. Recent Advances in Design and Development of Diazole and Diazine Based Fungicides (2014-2023). JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:15427-15448. [PMID: 38967261 DOI: 10.1021/acs.jafc.4c02187] [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: 07/06/2024]
Abstract
With fungal diseases posing a major threat to agricultural production, the application of fungicides to control related diseases is often considered necessary to ensure the world's food supply. The search for new bioactive agents has long been a priority in crop protection due to the continuous development of resistance against currently used types of active compounds. Heterocyclic compounds are an inseparable part of the core structures of numerous lead compounds, these rings constitute pharmacophores of a significant number of fungicides developed over the past decade by agrochemists. Among heterocycles, nitrogen-based compounds play an essential role. To date, diazole (imidazole and pyrazole) and diazine (pyrimidine, pyridazine, and pyrazine) derivatives make up an important series of synthetic fungicides. In recent years, many reports have been published on the design, synthesis, and study of the fungicidal activity of these scaffolds, but there was a lack of a comprehensive classified review on nitrogen-containing scaffolds. Regarding this issue, here we have reviewed the published articles on the fungicidal activity of the diazole and diazine families. In current review, we have classified the molecules synthesized so far based on the size of the ring.
Collapse
Affiliation(s)
- Ebrahim Saeedian Moghadam
- Drug Design and Development Research Center, The Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences, Tehran 1417614411, Iran
| | - Fahimeh Bonyasi
- Department of Medicinal Chemistry, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran 1417614411, Iran
| | - Bahareh Bayati
- Department of Medicinal Chemistry, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran 1417614411, Iran
| | - Mahdis Sadeghi Moghadam
- Department of Medicinal Chemistry, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran 1417614411, Iran
| | - Mohsen Amini
- Drug Design and Development Research Center, The Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences, Tehran 1417614411, Iran
- Department of Medicinal Chemistry, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran 1417614411, Iran
| |
Collapse
|
3
|
Zhang Y, Zhou B, Wei P, Liu L, Bai R, Wang Y, Zhou L. Design, bioactivity and mechanism of N'-phenyl pyridylcarbohydrazides with broad-spectrum antifungal activity. Mol Divers 2024:10.1007/s11030-024-10919-4. [PMID: 38926303 DOI: 10.1007/s11030-024-10919-4] [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: 05/08/2024] [Accepted: 06/16/2024] [Indexed: 06/28/2024]
Abstract
Succinate dehydrogenase inhibitors (SDHIs) as one of the fastest-growing fungicide categories for plant protection. In this study, a series of N'-phenyl pyridylcarbohydrazides as analogues of commercial SDHIs were designed and evaluated for inhibition activity on phytopathogenic fungi to search for potential novel SDHIs. The determination of antifungal activity in vitro and in vivo led to the discovery of a series of compounds with high activity and broad-spectrum property. Especially, N'-(4-fluorophenyl)picolinohydrazide (1c) and N'-(3,4-fluorophenyl)picolinohydrazide (1ae) showed 0.041-1.851 μg/mL of EC50 values on twelve fungi, superior to positive controls carbendazim and boscalid. In vivo activity, 1c at 50 μg/mL showed 61% of control efficacy at the post-treatment 9th day for the infection of P. piricola on apples, slightly smaller than 70% of carbendazim. In terms of action mechanism, 1c showed strong inhibition activity with IC50 of 0.107 μg/mL on SDH in Alternaria brassicae, superior to positive SDHI boscalid (IC50 0.182 μg/mL). Molecular docking indicated that 1c can well bind with the ubiquinone-binding region of SDH mainly by hydrogen bond, carbon hydrogen bond, π-alkyl, amide-π stacking, F-N and F-H interactions. Furthermore, scanning and transmission electron micrographs showed that 1c was able to obviously change the structure of mycelia and cell membrane. Fluorescence staining analysis showed that 1c could increase both the intracellular reactive oxygen species level and mitochondrial membrane potential. Finally, seed germination test, seedling growth test and cytotoxicity assay showed that 1c had very low toxicity to plant growth and mammalian cells. Thus, N'-phenyl pyridylcarbohydrazides especially 1c and 1ae can be considered promising fungicide alternatives for plant protection.
Collapse
Affiliation(s)
- Yuhao Zhang
- College of Chemistry and Pharmacy, Northwest A&F University, Yangling, 712100, Shaanxi, People's Republic of China
| | - Bohang Zhou
- Bio-Agriculture Institute of Shaanxi, Xi'an, 710043, Shaanxi, People's Republic of China
- Shaanxi Key Laboratory of Plant Nematology, Xi'an, 710043, Shaanxi, People's Republic of China
| | - Pengan Wei
- College of Chemistry and Pharmacy, Northwest A&F University, Yangling, 712100, Shaanxi, People's Republic of China
| | - Le Liu
- College of Chemistry and Pharmacy, Northwest A&F University, Yangling, 712100, Shaanxi, People's Republic of China
| | - Ruofei Bai
- College of Chemistry and Pharmacy, Northwest A&F University, Yangling, 712100, Shaanxi, People's Republic of China
| | - Yiwei Wang
- College of Chemistry and Pharmacy, Northwest A&F University, Yangling, 712100, Shaanxi, People's Republic of China
| | - Le Zhou
- College of Chemistry and Pharmacy, Northwest A&F University, Yangling, 712100, Shaanxi, People's Republic of China.
| |
Collapse
|
4
|
Xie Q, Zhang S, Zhang Y, Zhang B, Wan F, Li Y, Jiang L. Synthesis, fungicidal activity and molecular docking of novel pyrazole-carboxamides bearing a branched alkyl ether moiety. Bioorg Med Chem Lett 2024; 108:129813. [PMID: 38788964 DOI: 10.1016/j.bmcl.2024.129813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2024] [Revised: 05/17/2024] [Accepted: 05/21/2024] [Indexed: 05/26/2024]
Abstract
Succinate dehydrogenase inhibitors are essential fungicides used in agriculture. To explore new pyrazole-carboxamides with high fungicidal activity, a series of N-substitutedphenyl-3-di/trifluoromethyl-1-methyl-1H-pyrazole-4-carboxamides bearing a branched alkyl ether moiety were designed and synthesized. The in vitro bioassay indicated that some target compounds displayed appreciable fungicidal activity. For example, compounds 5d and 5e showed high efficacy against S. sclerotiorum with EC50 values of 3.26 and 1.52 μg/mL respectively, and also exhibited excellent efficacy against R. solani with EC50 values of 0.27 and 0.06 μg/mL respectively, which were comparable or superior to penflufen. The further in vivo bioassay on cucumber leaves demonstrated that 5e provided strong protective activity of 94.3 % against S. sclerotiorum at 100 μg/mL, comparable to penflufen (99.1 %). Cytotoxicity assessment against human renal cell lines (239A cell) revealed that 5e had low cytotoxicity within the median effective concentrations. Docking study of 5e with succinate dehydrogenase illustrated that R-5e formed one hydrogen bond and two π-π stacking interactions with amino acid residues of target enzyme, while S-5e formed only one π-π stacking interaction with amino acid residue. This study provides a valuable reference for the design of new succinate dehydrogenase inhibitor.
Collapse
Affiliation(s)
- Qingyang Xie
- College of Chemistry and Material Science, Shandong Agricultural University, Tai'an 271018, China
| | - Shuai Zhang
- College of Chemistry and Material Science, Shandong Agricultural University, Tai'an 271018, China
| | - Yuanhong Zhang
- College of Chemistry and Material Science, Shandong Agricultural University, Tai'an 271018, China
| | - Bowen Zhang
- College of Chemistry and Material Science, Shandong Agricultural University, Tai'an 271018, China
| | - Fuxian Wan
- College of Chemistry and Material Science, Shandong Agricultural University, Tai'an 271018, China
| | - Ying Li
- College of Chemistry and Material Science, Shandong Agricultural University, Tai'an 271018, China
| | - Lin Jiang
- College of Chemistry and Material Science, Shandong Agricultural University, Tai'an 271018, China
| |
Collapse
|
5
|
Luo X, Chen Y, Wang Y, Xing Z, Peng J, Chen J. Design, synthesis and antifungal activity of novel amide derivatives containing a pyrrolidine moiety as potential succinate dehydrogenase inhibitors. Mol Divers 2024; 28:805-816. [PMID: 36787084 DOI: 10.1007/s11030-023-10622-w] [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: 09/12/2022] [Accepted: 01/31/2023] [Indexed: 02/15/2023]
Abstract
To discover new succinate dehydrogenase inhibitors (SDHI) fungicides, a series of amide derivatives containing a pyrrolidine moiety were designed and synthesized, and their antifungal activities were evaluated against Monilinia fructicola (M. fructicola), Rhizoctonia solani (R. solani), Fusarium graminearum schw (F. graminearum), Fusarium oxysporum (F. oxysporum), and Phytophthora infestans (P. infestans). Some compounds showed excellent antifungal activities against the five fungi. Among them, compound 6 showed broad-spectrum inhibitory activities. The EC50 of compound 6 against M. fructicola, R. solani, F. graminearum, F. oxysporum, and P. infestans were 2.13, 14.42, 1.69, 27.79, and 27.12 mg/L, respectively. In addition, compound 6 can effectively inhibit the spore germination of M. fructicola and has moderate damage to the cell membrane. Compound 6 can effectively inhibit succinate dehydrogenase (SDH) of M. fructicola, and can significantly increase the expression levels of SDHC and SDHD. Compound 6 can be used as a lead structure for developing new SDH inhibitors.
Collapse
Affiliation(s)
- Xin Luo
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry Education, Guizhou University, Huaxi District, Guiyang, 550025, China
| | - Yifang Chen
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry Education, Guizhou University, Huaxi District, Guiyang, 550025, China
| | - Yu Wang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry Education, Guizhou University, Huaxi District, Guiyang, 550025, China
| | - Zhifu Xing
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry Education, Guizhou University, Huaxi District, Guiyang, 550025, China
| | - Ju Peng
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry Education, Guizhou University, Huaxi District, Guiyang, 550025, China
| | - Jixiang Chen
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry Education, Guizhou University, Huaxi District, Guiyang, 550025, China.
| |
Collapse
|
6
|
Oksanen V, Rautiainen S, Wirtanen T. Nickel-Electrocatalyzed Synthesis of Bifuran-Based Monomers. Chemistry 2023; 29:e202302572. [PMID: 37735957 DOI: 10.1002/chem.202302572] [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: 09/08/2023] [Revised: 09/18/2023] [Accepted: 09/19/2023] [Indexed: 09/23/2023]
Abstract
Bifuran motifs can be accessed with nickel-bipyridine electrocatalyzed homocouplings of bromine-substituted methyl furancarboxylates, which, in turn, can be prepared from hemicellulose-derived furfural. The described protocol uses sustainable carbon-based graphite electrodes in the simplest setup - an undivided cell with constant current electrolysis. The reported method avoids using a sacrificial anode by employing triethanolamine as an electron donor.
Collapse
Affiliation(s)
- Valtteri Oksanen
- Industrial Synthesis & Catalysis, VTT Technical Research Centre of Finland Ltd., Box 1000, FI-02044, Espoo, Finland
| | - Sari Rautiainen
- Industrial Synthesis & Catalysis, VTT Technical Research Centre of Finland Ltd., Box 1000, FI-02044, Espoo, Finland
| | - Tom Wirtanen
- Industrial Synthesis & Catalysis, VTT Technical Research Centre of Finland Ltd., Box 1000, FI-02044, Espoo, Finland
| |
Collapse
|
7
|
Ma Z, Qiu S, Zhang D, Guo X, Lu Y, Fan Y, Chen X. Design, synthesis, and antifungal activity of novel dithiin tetracarboximide derivatives as potential succinate dehydrogenase inhibitors. PEST MANAGEMENT SCIENCE 2023; 79:1922-1930. [PMID: 36658467 DOI: 10.1002/ps.7369] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Revised: 12/11/2022] [Accepted: 01/20/2023] [Indexed: 06/17/2023]
Abstract
BACKGROUND Succinate dehydrogenase inhibitor (SDHI) fungicides are an important class of agricultural fungicides with the advantages of high efficiency and a broad bactericidal spectrum. To pursue novel SDHIs, a series of N-substituted dithiin tetracarboximide derivatives were designed, synthesized, and characterized by 1 H NMR, 13 C NMR, and high resolution mass spectrum (HRMS). RESULTS These engineered compounds displayed potent fungicidal activity against phytopathogens, including Sclerotinia sclerotiorum, Botrytis cinerea, and Rhizoctonia solani, comparable with that of the commercial SDHI fungicide boscalid. In particular, compound 18 stood out with prominent activity against S. sclerotiorum with a half-maximal effective concentration (EC50 ) value of 1.37 μg ml-1 . Compound 1 exhibited the most potent antifungal activity against B. cinerea with EC50 values of 5.02 μg ml-1 . As for R. solani, 12 and 13 exhibited remarkably inhibitory activity with EC50 values of 4.26 and 5.76 μg ml-1 , respectively. In the succinate dehydrogenase (SDH) inhibition assay, 13 presented significant inhibitory activity with a half-maximal inhibitory concentration (IC50 ) value of 15.3 μm, which was approximately equivalent to that of boscalid (14.2 μm). Furthermore, molecular docking studies revealed that 13 could anchor in the binding site of SDH. CONCLUSION Taken together, results suggested that the dithiin tetracarboximide scaffold possessed a huge potential to be developed as novel fungicides and SDHIs. © 2023 Society of Chemical Industry.
Collapse
Affiliation(s)
- Zhi Ma
- Institute of Fermentation Engineering, Zhejiang University of Technology, Hangzhou, People's Republic of China
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, People's Republic of China
| | - Shuo Qiu
- Institute of Fermentation Engineering, Zhejiang University of Technology, Hangzhou, People's Republic of China
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, People's Republic of China
| | - Dong Zhang
- Institute of Fermentation Engineering, Zhejiang University of Technology, Hangzhou, People's Republic of China
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, People's Republic of China
| | - Xinying Guo
- Institute of Fermentation Engineering, Zhejiang University of Technology, Hangzhou, People's Republic of China
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, People's Republic of China
| | - Yuele Lu
- Institute of Fermentation Engineering, Zhejiang University of Technology, Hangzhou, People's Republic of China
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, People's Republic of China
| | - Yongxian Fan
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, People's Republic of China
| | - Xiaolong Chen
- Institute of Fermentation Engineering, Zhejiang University of Technology, Hangzhou, People's Republic of China
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, People's Republic of China
| |
Collapse
|
8
|
Tong Z, Dong X, Meng D, Yi X, Sun M, Chu Y, Duan J. Enantioselective Degradation and Bioactivity Mechanism of a New Chiral Fungicide Fluindapyr in Paddy Ecosystems. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:1426-1433. [PMID: 36630283 DOI: 10.1021/acs.jafc.2c07924] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Fluindapyr is a novel chiral succinate dehydrogenase inhibitor used to control fungal diseases. The enantioselective effects of fluindapyr in paddy ecosystems are unknown. We developed a new chiral determination method of fluindapyr using ultrahigh performance liquid chromatography tandem mass spectrometry. The absolute configuration of the fluindapyr enantiomers was identified by an electron circular dichroism model. A new husk-based biochar material was used to optimize and establish a QuEchERs method for paddy soil determination. Under anaerobic conditions, the half-lives of R-fluindapyr and S-fluindapyr in paddy soil were 69.6 and 101.8 days, respectively. R-fluindapyr degraded more rapidly than S-fluindapyr. S-fluindapyr was 87.8 times more active against Rhizoctonia solani than R-fluindapyr. The enantioselective bioactivity mechanism was illustrated by molecular docking between the fluindapyr enantiomers and SDH of R. solani. The binding powers of R-fluindapyr and S-fluindapyr to proteins were -32.12 and - 42.91 kcal/mol, respectively. This study reports the stereoselectivity of fluindapyr about determination, degradation, bioactivity, and its mechanism. It provides a foundation for an in-depth study of fluindapyr at the enantiomer level.
Collapse
Affiliation(s)
- Zhou Tong
- Institute of Plant Protection and Agro-Product Safety, Anhui Academy of Agricultural Sciences, Hefei230031, China
- Key Laboratory of Agro-Product Safety Risk Evaluation (Hefei), Ministry of Agriculture, Hefei230031, China
| | - Xu Dong
- Institute of Plant Protection and Agro-Product Safety, Anhui Academy of Agricultural Sciences, Hefei230031, China
- Key Laboratory of Agro-Product Safety Risk Evaluation (Hefei), Ministry of Agriculture, Hefei230031, China
- Department of Pesticide Science, College of Plant Protection, Nanjing Agricultural University, Nanjing210095, China
| | - DanDan Meng
- Institute of Plant Protection and Agro-Product Safety, Anhui Academy of Agricultural Sciences, Hefei230031, China
- Key Laboratory of Agro-Product Safety Risk Evaluation (Hefei), Ministry of Agriculture, Hefei230031, China
| | - XiaoTong Yi
- Institute of Plant Protection and Agro-Product Safety, Anhui Academy of Agricultural Sciences, Hefei230031, China
- Key Laboratory of Agro-Product Safety Risk Evaluation (Hefei), Ministry of Agriculture, Hefei230031, China
| | - MingNa Sun
- Institute of Plant Protection and Agro-Product Safety, Anhui Academy of Agricultural Sciences, Hefei230031, China
- Key Laboratory of Agro-Product Safety Risk Evaluation (Hefei), Ministry of Agriculture, Hefei230031, China
| | - Yue Chu
- Institute of Plant Protection and Agro-Product Safety, Anhui Academy of Agricultural Sciences, Hefei230031, China
- Key Laboratory of Agro-Product Safety Risk Evaluation (Hefei), Ministry of Agriculture, Hefei230031, China
| | - JinSheng Duan
- Institute of Plant Protection and Agro-Product Safety, Anhui Academy of Agricultural Sciences, Hefei230031, China
| |
Collapse
|
9
|
Zhao Y, Wang X, Zhang L, Wang K, Wu Y, Yao J, Cui B, Chen Z. Anti-Fungal Activity of Moutan cortex Extracts against Rice Sheath Blight ( Rhizoctonia solani) and Its Action on the Pathogen's Cell Membrane. ACS OMEGA 2022; 7:47048-47055. [PMID: 36570206 PMCID: PMC9773796 DOI: 10.1021/acsomega.2c06150] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Accepted: 11/25/2022] [Indexed: 06/17/2023]
Abstract
Rice sheath blight (RSB) caused by Rhizoctonia solani is one of the most destructive diseases of rice (Oryza sativa). Although chemical fungicides are the most important control methods, their long-term unreasonable application has brought about problems such as environmental pollution, food risks, and non-target poisoning. Therefore, considering the extraction of fungistatic substances from plants may be an alternative in the future. In this study, we found that the Moutan cortex ethanol extract has excellent antifungal activity against R. solani, with a 100% inhibition rate at 1000 μg/mL, which aroused our great exploration interest. In-depth exploration found that the antifungal active ingredients of M. cortex were mainly concentrated in the petroleum ether extract of the M. cortex ethanol extract, which still maintained a 100% inhibition rate with 250 μg/mL, and its effective medium concentration (EC50) was 145.33 μg/mL against R. solani. Through the measurement of extracellular relative conductivity and OD260, the petroleum ether extract induced leakage of intracellular electrolytes and nucleic acids, indicating that the cell membrane was ruined. Therefore, we preliminarily determined that the cell membrane may be the target of the petroleum ether extract. Moreover, we found that petroleum ether extract reduced the content of ergosterol, a component of the cell membrane, which may be one of the reasons for the cell membrane destruction. Furthermore, the increase of MDA content would lead to membrane lipid peroxidation, further aggravating membrane damage, resulting in increased membrane permeability. Also, the destruction of the cell membrane was observed by the phenomenon of the mycelium being transparent and broken. In conclusion, this is the first report of the M. cortex petroleum ether extract exhibiting excellent antifungal activity against R. solani. The effect of the M. cortex petroleum ether extract on R. solani may be on the cell membrane, inducing the disorder of intracellular substances and metabolism, which may be one of the antifungal mechanisms against R. solani.
Collapse
Affiliation(s)
- Yongtian Zhao
- College
of Life Science and Agriculture, Qiannan
Normal University for Nationalities, Duyun, Guizhou558000, China
| | - Xinge Wang
- College
of Life Science and Agriculture, Qiannan
Normal University for Nationalities, Duyun, Guizhou558000, China
| | - Lian Zhang
- College
of Life Science and Agriculture, Qiannan
Normal University for Nationalities, Duyun, Guizhou558000, China
| | - Keying Wang
- College
of Life Science and Agriculture, Qiannan
Normal University for Nationalities, Duyun, Guizhou558000, China
| | - Yanchun Wu
- College
of Life Science and Agriculture, Qiannan
Normal University for Nationalities, Duyun, Guizhou558000, China
| | - Jia Yao
- College
of Life Science and Agriculture, Qiannan
Normal University for Nationalities, Duyun, Guizhou558000, China
| | - Baolu Cui
- College
of Life Science and Agriculture, Qiannan
Normal University for Nationalities, Duyun, Guizhou558000, China
| | - Zhuo Chen
- Key
Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry
of Education, Guizhou University, Guiyang, Guizhou550025, China
| |
Collapse
|
10
|
Novel aromatic carboxamides from dehydroabietylamine as potential fungicides: Design, synthesis and antifungal evaluation. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.104330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
|
11
|
Cetin A, Oguz E, Türkan F. In Silico and In Vitro Analysis of Acetylcholinesteraseand Glutathione S-Transferase Enzymes of Substituted Pyrazoles. RUSS J GEN CHEM+ 2022. [DOI: 10.1134/s1070363222110263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
|
12
|
Wang J, Xiao T, Lu T, Zhang T, Jiang W, Yan Y, Tang X, Wang X. Novel pyran derivatives as potential succinate dehydrogenase inhibitors: design, synthesis, crystal structure, biological activity, and molecular modeling. Med Chem Res 2022. [DOI: 10.1007/s00044-022-02965-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
13
|
Zhu JJ, Wang PY, Long ZQ, Xiang SZ, Zhang JR, Li ZX, Wu YY, Shao WB, Zhou X, Liu LW, Yang S. Design, Synthesis, and Biological Profiles of Novel 1,3,4-Oxadiazole-2-carbohydrazides with Molecular Diversity. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:2825-2838. [PMID: 35201749 DOI: 10.1021/acs.jafc.1c07190] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
To unceasingly expand the molecular diversity of 1,3,4-oxadiazole-2-carbohydrazides, herein, small fragments (including -CH2-, -OCH2-, and -SCH2-) were incorporated into the target compounds to screen out the potential succinate dehydrogenase inhibitors (SDHIs). The bioassay results showed that the antifungal effects (expressed by EC50) against Sclerotinia sclerotiorum, Botryosphaeria dothidea, Fusarium oxysporum, and Colletotrichun higginsianum could reach 1.29 (10a), 0.63 (8h), 1.50 (10i), and 2.09 (10i) μg/mL, respectively, which were slightly lower than those of carbendazim (EC50 were 0.69, 0.13, 0.55, and 0.80 μg/mL, respectively). Especially, compound 10h was extremely bioactive against Gibberella zeae (G. z.) with an EC50 value of 0.45 μg/mL. This outcome was better than that of fluopyram (3.76 μg/mL) and was similar to prochloraz (0.47 μg/mL). In vivo trials against the corn scab (infected by G. z.) showed that compound 10h had control activity of 86.8% at 200 μg/mL, which was better than that of boscalid (79.6%). Further investigations found that compound 10h could inhibit the enzymatic activity of SDH in the G. z. strain with an IC50 value of 3.67 μM, indicating that potential SDHIs might be developed. Additionally, the other biological activities of these molecules were screened simultaneously. The anti-oomycete activity toward Phytophthora infestans afforded a minimal EC50 value of 3.22 μg/mL (10h); compound 4d could strongly suppress the growth of bacterial strains Xanthomonas axonopodis pv. citri and Xanthomonas oryzae pv. oryzae with EC50 values of 3.79 and 11.4 μg/mL, respectively; and compound 10a displayed some insecticidal activity toward Plutella xylostella. Given their multipurpose features, these frameworks could be actively studied as potential pesticide leads.
Collapse
Affiliation(s)
- Jian-Jun Zhu
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Pei-Yi Wang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Zhou-Qing Long
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Shu-Zhen Xiang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Jun-Rong Zhang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Zhen-Xing Li
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Yuan-Yuan Wu
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Wu-Bin Shao
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Xiang Zhou
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Li-Wei Liu
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Song Yang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| |
Collapse
|
14
|
Govindaraju S, Tabassum S. Visible Light Mediated Organophotoredox-Catalyzed One-Pot Domino Synthesis of Novel 6,7 Disubstituted 1H-Pyrroles. Top Catal 2022. [DOI: 10.1007/s11244-022-01580-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
15
|
Luo B, Ning Y. Comprehensive Overview of Carboxamide Derivatives as Succinate Dehydrogenase Inhibitors. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:957-975. [PMID: 35041423 DOI: 10.1021/acs.jafc.1c06654] [Citation(s) in RCA: 54] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Up to now, a total of 24 succinate dehydrogenase inhibitors (SDHIs) fungicides have been commercialized, and SDHIs fungicides were also one of the most active fungicides developed in recent years. Carboxamide derivatives represented an important class of SDHIs with broad spectrum of antifungal activities. In this review, the development of carboxamide derivatives as SDHIs with great significances were summarized. In addition, the structure-activity relationships (SARs) of antifungal activities of carboxamide derivatives as SDHIs was also summarized based on the analysis of the structures of the commercial SDHIs and lead compounds. Moreover, the cause of resistance of SDHIs and some solutions were also introduced. Finally, the development trend of SDHIs fungicides was prospected. We hope this review will give a guide for the development of novel SDHIs fungicides in the future.
Collapse
Affiliation(s)
- Bo Luo
- College of Life Sciences, Xinyang Normal University, Tea Plant Biology Key Laboratory of Henan Province, Xinyang 464000, China
| | - Yuli Ning
- College of Life Sciences, Xinyang Normal University, Tea Plant Biology Key Laboratory of Henan Province, Xinyang 464000, China
| |
Collapse
|
16
|
Li S, Li X, Zhang H, Wang Z, Xu H. The research progress in and perspective of potential fungicides: Succinate dehydrogenase inhibitors. Bioorg Med Chem 2021; 50:116476. [PMID: 34757244 DOI: 10.1016/j.bmc.2021.116476] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 09/24/2021] [Accepted: 10/11/2021] [Indexed: 12/21/2022]
Abstract
Succinate dehydrogenase inhibitors (SDHIs) have become one of the fastest growing classes of new fungicides since entering the market, and have attracted increasing attention as a result of their unique structure, high activity and broad fungicidal spectrum. The mechanism of SDHIs is to inhibit the activity of succinate dehydrogenase, thereby affecting mitochondrial respiration and ultimately killing pathogenic fungi. At present, they have become popular varieties researched and developed by major pesticide companies in the world. In the review, we focused on the mechanism, the history, the representative varieties, structure-activity relationship and resistance of SDHIs. Finally, the potential directions for the development of SDHIs were discussed. It is hoped that this review can strengthen the individuals' understanding of SDHIs and provide some inspiration for the development of new fungicides.
Collapse
Affiliation(s)
- Shuqi Li
- Engineering Research Center of Pesticide of Heilongjiang Province, College of Advanced Agriculture and Ecological Environment, Heilongjiang University, 150080 Harbin, China
| | - Xiangshuai Li
- Engineering Research Center of Pesticide of Heilongjiang Province, College of Advanced Agriculture and Ecological Environment, Heilongjiang University, 150080 Harbin, China
| | - Hongmei Zhang
- Engineering Research Center of Pesticide of Heilongjiang Province, College of Advanced Agriculture and Ecological Environment, Heilongjiang University, 150080 Harbin, China
| | - Zishi Wang
- Engineering Research Center of Pesticide of Heilongjiang Province, College of Advanced Agriculture and Ecological Environment, Heilongjiang University, 150080 Harbin, China.
| | - Hongliang Xu
- Engineering Research Center of Pesticide of Heilongjiang Province, College of Advanced Agriculture and Ecological Environment, Heilongjiang University, 150080 Harbin, China.
| |
Collapse
|
17
|
Design, synthesis, and antifungal activity evaluation of novel 2-cyano-5-oxopentanoic acid derivatives as potential succinate dehydrogenase inhibitors. Med Chem Res 2021. [DOI: 10.1007/s00044-021-02818-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
|
18
|
Li B, Lin G, Duan W, Wang X, Cen B. Synthesis of Myrtenal-Based Nanocellulose/Diacylhydrazine Complexes with Antifungal Activity for Plant Protection. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:12956-12965. [PMID: 34714664 DOI: 10.1021/acs.jafc.1c02694] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
In search of novel bioactive compounds with excellent and broad-spectrum antifungal activity and nanopesticides with sustained releasing property, a series of novel myrtenal-based diacylhydrazines were designed, synthesized, and characterized. The preliminary bioassay showed that myrtenal-based 2-picolinyl hydrazide exhibited better or comparable antifungal activity than that of the commercial fungicides boscalid and chlorothalonil against the tested fungi. Furthermore, myrtenal-based nanocellulose was designed as a nanopesticide carrier and prepared from two biomass materials, bleached bagasse pulp and turpentine oil. Drug-loading capacities (LCs) of these carriers and sustained releasing properties of corresponding complexes were also evaluated, and the results indicated that the esterification reaction in the different solvents would affect the micromorphology of carriers, which was the important influential factor for loading or releasing drugs. To our delight, complex VIII-3 (LC = 0.32, total releasing amount/time = 99.8%/168 h) showed a macroporous framework with the drug evenly distributed across the opening network and staged drug-releasing performance that deserved further study as a nanopesticide.
Collapse
Affiliation(s)
- Baoyu Li
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, Guangxi 530004, People's Republic of China
| | - Guishan Lin
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, Guangxi 530004, People's Republic of China
| | - Wengui Duan
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, Guangxi 530004, People's Republic of China
| | - Xiaoyu Wang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, Guangxi 530004, People's Republic of China
| | - Bo Cen
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, Guangxi 530004, People's Republic of China
| |
Collapse
|
19
|
Yang Z, Liu Q, Sun Y, Sun X, Chen L, Sun L, Gu W. Synthesis, Antifungal Activity, DFT Study and Molecular Dynamics Simulation of Novel 4-(1,2,4-Oxadiazol-3-yl)-N-(4-phenoxyphenyl)benzamide Derivatives. Chem Biodivers 2021; 18:e2100651. [PMID: 34626068 DOI: 10.1002/cbdv.202100651] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Accepted: 10/08/2021] [Indexed: 12/14/2022]
Abstract
In order to find novel potential antifungal agrochemicals, a series of new 4-(1,2,4-oxadiazol-3-yl)-N-(4-phenoxyphenyl)benzamide derivatives 3a-j were designed, synthesized and characterized by their 1 H-, 13 C-NMR and HRMS spectra. The preliminary antifungal assay in vitro revealed that compounds 3a-j exhibited moderate to good antifungal activity against five plant pathogenic fungi. Especially, compound 3e presented significant antifungal activity against Alternaria solani, Botrytis cinerea and Sclerotinia sclerotiorum, superior to positive control boscalid. In the in vivo antifungal assay on tomato plants and cucumber leaves, compound 3e presented good inhibition rate against B. cinerea at 200 mg/L. Molecular dynamics simulation revealed that compound 3e could bind with the active site of class II histone deacetylase (HDAC).
Collapse
Affiliation(s)
- Zihui Yang
- Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-forest Biomass, Jiangsu Key Lab of Biomass-based Green Fuels, Chemicals, Co - Innovation Center for Efficient Processing and Utilization of Forest Products, College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, P. R. China
| | - Qingsong Liu
- Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-forest Biomass, Jiangsu Key Lab of Biomass-based Green Fuels, Chemicals, Co - Innovation Center for Efficient Processing and Utilization of Forest Products, College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, P. R. China
| | - Yue Sun
- Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-forest Biomass, Jiangsu Key Lab of Biomass-based Green Fuels, Chemicals, Co - Innovation Center for Efficient Processing and Utilization of Forest Products, College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, P. R. China
| | - Xuebao Sun
- Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-forest Biomass, Jiangsu Key Lab of Biomass-based Green Fuels, Chemicals, Co - Innovation Center for Efficient Processing and Utilization of Forest Products, College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, P. R. China
| | - Linlin Chen
- Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-forest Biomass, Jiangsu Key Lab of Biomass-based Green Fuels, Chemicals, Co - Innovation Center for Efficient Processing and Utilization of Forest Products, College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, P. R. China
| | - Lu Sun
- Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-forest Biomass, Jiangsu Key Lab of Biomass-based Green Fuels, Chemicals, Co - Innovation Center for Efficient Processing and Utilization of Forest Products, College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, P. R. China
| | - Wen Gu
- Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-forest Biomass, Jiangsu Key Lab of Biomass-based Green Fuels, Chemicals, Co - Innovation Center for Efficient Processing and Utilization of Forest Products, College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, P. R. China
| |
Collapse
|
20
|
Long ZQ, Yang LL, Zhang JR, Liu ST, Wang PY, Zhu JJ, Shao WB, Liu LW, Yang S. Fabrication of Versatile Pyrazole Hydrazide Derivatives Bearing a 1,3,4-Oxadiazole Core as Multipurpose Agricultural Chemicals against Plant Fungal, Oomycete, and Bacterial Diseases. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:8380-8393. [PMID: 34296859 DOI: 10.1021/acs.jafc.1c02460] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Developing multipurpose agricultural chemicals is appealing in crop protection, thus eventually realizing the reduction and efficient usage of pesticides. Herein, an array of versatile pyrazole hydrazide derivatives bearing a 1,3,4-oxadiazole core were initially synthesized and biologically evaluated the antifungal, antioomycetes, and antibacterial activities. In addition, the pyrazole ring was replaced by the correlative pyrrole, thiazole, and indole scaffolds to extend the molecular diversity. The results showed that most of these hybrid compounds were empowered with multifunctional bioactivities, which are exemplified by compounds a1-a6, b1-b3, b7, b10, b13, and b18. For the antifungal activity, the minimal EC50 values could afford 0.47 (a2), 1.05 (a2), 0.65 (a1), and 1.32 μg/mL (b3) against the corresponding fungi Gibberella zeae (G. z.), Fusarium oxysporum, Botryosphaeria dothidea, and Rhizoctonia solani. In vivo pot experiments against corn scab (caused by G. z.) revealed that the compound a2 was effective with protective and curative activities of 90.2 and 86.3% at 200 μg/mL, which was comparable to those of fungicides boscalid and fluopyram. Further molecular docking study and enzymatic activity analysis (IC50 = 3.21 μM, a2) indicated that target compounds were promising succinate dehydrogenase inhibitors. Additionally, compounds b2 and a4 yielded superior anti-oomycete and antibacterial activities toward Phytophora infestins and Xanthomonas oryzae pv. oryzae with EC50 values of 2.92 and 8.43 μg/mL, respectively. In vivo trials against rice bacterial blight provided the control efficiency within 51.2-55.3% (a4) at 200 μg/mL, which were better than that of bismerthiazol. Given their multipurpose characteristics, these structures should be positively explored as agricultural chemicals.
Collapse
Affiliation(s)
- Zhou-Qing Long
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Lin-Li Yang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Jun-Rong Zhang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Shi-Tao Liu
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Pei-Yi Wang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Jian-Jun Zhu
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Wu-Bin Shao
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Li-Wei Liu
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Song Yang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| |
Collapse
|
21
|
Chen L, Huo JQ, Si HL, Xu XY, Kou S, Mao J, Zhang JL. One-Pot Synthesis of N-H-Free Pyrroles from Aldehydes and Alkynes. Org Lett 2021; 23:4348-4352. [PMID: 34014098 DOI: 10.1021/acs.orglett.1c01287] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The first base-mediated intermolecular cyclization of arylaldehydes and terminal arylacetylenes for the synthesis of a wide range of pyrroles in a single step has been described. The developed methodology used commercially available starting materials and tolerated a broad range of functional groups affording 2,3,5-triaryl-substituted-1H-pyrroles with good yields (up to 92% yield) under mild conditions. The possible mechanism was also discussed.
Collapse
Affiliation(s)
- Lai Chen
- College of Plant Protection, Hebei Agricultural University, Baoding 071001, P. R. China
| | - Jing-Qian Huo
- College of Plant Protection, Hebei Agricultural University, Baoding 071001, P. R. China
| | - He-Long Si
- College of Life Sciences, Hebei Agricultural University, Baoding 071001, P. R. China
| | - Xin-Yu Xu
- Technical Institute of Fluorochemistry (TIF), Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| | - Song Kou
- College of Plant Protection, Hebei Agricultural University, Baoding 071001, P. R. China
| | - Jianyou Mao
- Technical Institute of Fluorochemistry (TIF), Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| | - Jin-Lin Zhang
- College of Plant Protection, Hebei Agricultural University, Baoding 071001, P. R. China
| |
Collapse
|
22
|
Chen Z, Zeng P, Zhang S, Huang X. Lewis‐Acid‐Mediated One‐Pot Tandem Reactions for Synthesis of Structurally Diverse Furo[3,2‐c]coumarins. ChemistrySelect 2021. [DOI: 10.1002/slct.202101029] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Zhiwei Chen
- College of Pharmaceutical Sciences Zhejiang University of Technology Hangzhou 310014 P.R. China
| | - Piaopiao Zeng
- College of Pharmaceutical Sciences Zhejiang University of Technology Hangzhou 310014 P.R. China
| | - Shuo Zhang
- College of Pharmaceutical Sciences Zhejiang University of Technology Hangzhou 310014 P.R. China
| | - Xiaoxiao Huang
- College of Pharmaceutical Sciences Zhejiang University of Technology Hangzhou 310014 P.R. China
| |
Collapse
|
23
|
Luo D, Bai H, Zhou X, Wu L, Zhang C, Wu Z, Li Z, Bai L. Synthesis Candidates Herbicide Through Optimization Quinclorac Containing 3-Methyl-1H-pyrazol-5-yl. Front Chem 2021; 9:647472. [PMID: 33937195 PMCID: PMC8080966 DOI: 10.3389/fchem.2021.647472] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Accepted: 02/11/2021] [Indexed: 11/30/2022] Open
Abstract
To enhance quinclorac potency, twenty-five derivatives were synthesized containing 3-methyl-1H-pyrazol-5-yl by intermediate derivatization methods (IDMs). These compounds were confirmed by melting point (mp), 1HNMR, 13CNMR, and HRMS. The compound 1,3-dimethyl-1H-pyrazol-5-yl 3,7-dichloroquinoline-8-carboxylate (10a) was determined by X-ray diffraction. The activity of these compounds substituent on the phenyl was: electron-drawing group > neutral group > donor-drawing group, the results was like that of substituted benzyl group on pyrazole. The herbicidal activity assays showed that compounds 1-(2-fluorophenyl)-3-methyl-1H-pyrazol-5-yl 3,7-dichloroquinoline-8-carboxylate (8l, EC50 = 10.53 g/ha) and 10a (EC50 = 10.37 g/ha) had an excellent inhibition effect on barnyard grass in greenhouse experiment. Greenhouse safety experiment of rice exhibited almost no difference in plant height and fresh weight treated 10a at stage 1∼2-leaf of rice after 14 days but 8l had a detrimental effect. Two season field assays showed 10a herbicidal activity on barnyard grass at 150 g/ha as equal as 300 g/ha quinclorac in fields in 2019 and 2020. The study demonstrated that 10a could be further researched as a potential herbicide to control barnyard grass in fields.
Collapse
Affiliation(s)
- Dingfeng Luo
- Long Ping Branch, Graduate School of Hunan University, Changsha, China.,Hunan Provincial Key Laboratory for Biology and Control of Weeds, Hunan Academy of Agricultural Sciences, Changsha, China
| | - Haodong Bai
- Hunan Provincial Key Laboratory for Biology and Control of Weeds, Hunan Academy of Agricultural Sciences, Changsha, China
| | - Xiaomao Zhou
- Long Ping Branch, Graduate School of Hunan University, Changsha, China.,Hunan Provincial Key Laboratory for Biology and Control of Weeds, Hunan Academy of Agricultural Sciences, Changsha, China
| | - Lamei Wu
- Hunan Provincial Key Laboratory for Biology and Control of Weeds, Hunan Academy of Agricultural Sciences, Changsha, China
| | - Chengjia Zhang
- Hunan Provincial Key Laboratory for Biology and Control of Weeds, Hunan Academy of Agricultural Sciences, Changsha, China
| | - Zhongchi Wu
- Hunan Provincial Key Laboratory for Biology and Control of Weeds, Hunan Academy of Agricultural Sciences, Changsha, China
| | - Zuren Li
- Long Ping Branch, Graduate School of Hunan University, Changsha, China.,Hunan Provincial Key Laboratory for Biology and Control of Weeds, Hunan Academy of Agricultural Sciences, Changsha, China
| | - Lianyang Bai
- Long Ping Branch, Graduate School of Hunan University, Changsha, China.,Hunan Provincial Key Laboratory for Biology and Control of Weeds, Hunan Academy of Agricultural Sciences, Changsha, China
| |
Collapse
|
24
|
Zhao S, Lin G, Duan W, Zhang Q, Huang Y, Lei F. Design, Synthesis, and Antifungal Activity of Novel Longifolene-Derived Diacylhydrazine Compounds. ACS OMEGA 2021; 6:9104-9111. [PMID: 33842780 PMCID: PMC8028131 DOI: 10.1021/acsomega.1c00217] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Accepted: 03/09/2021] [Indexed: 05/04/2023]
Abstract
Succinate dehydrogenase (SDH) present in the inner mitochondrial membrane is an important target enzyme for the design of SDH inhibitor-type fungicides. Using SDH as the target enzyme, 22 novel longifolene-derived diacylhydrazine compounds were designed and synthesized using the renewable natural product longifolene as the starting material. Their structures were confirmed by IR, 1H NMR, 13C NMR, electrospray mass spectrometry, and elemental analysis. In vitro antifungal activity of the target compounds was preliminarily evaluated. As a result, some of them showed better or comparable antifungal activity than that of the commercial fungicide chlorothalonil, in which compound 5a had inhibitory rates of 97.5, 80.5, 72.1, and 67.1% against Physalospora piricola, Colletotrichum orbiculare, Alternaria solani, and Gibberella zeae, respectively, presenting excellent and broad-spectrum activity that deserved further study. Besides, a reasonable and effective three-dimensional structure-activity quantitative relationship model has been established. There was a significant positive correlation between the antifungal activity and the docking-based binding energy analyzed using Spearman's rank correlation algorithm. Also, the simulative binding pattern of the target compounds with SDH was investigated by molecular docking study. Furthermore, the diacylhydrazine and phenol groups of the target compounds were proposed to be the potential pharmacophores by frontier molecular orbital analysis.
Collapse
Affiliation(s)
- Shuyan Zhao
- School
of Chemistry and Chemical Engineering, Guangxi
University, No. 100, Daxue Dong Road, Nanning, Guangxi 530004, P.
R. China
| | - Guishan Lin
- School
of Chemistry and Chemical Engineering, Guangxi
University, No. 100, Daxue Dong Road, Nanning, Guangxi 530004, P.
R. China
| | - Wengui Duan
- School
of Chemistry and Chemical Engineering, Guangxi
University, No. 100, Daxue Dong Road, Nanning, Guangxi 530004, P.
R. China
- . Phone: +86-771-2097058. Fax: +86-771-3233718.
| | - Qianan Zhang
- School
of Chemistry and Chemical Engineering, Guangxi
University, No. 100, Daxue Dong Road, Nanning, Guangxi 530004, P.
R. China
| | - Yinglan Huang
- School
of Chemistry and Chemical Engineering, Guangxi
University, No. 100, Daxue Dong Road, Nanning, Guangxi 530004, P.
R. China
| | - Fuhou Lei
- Guangxi
Key Laboratory of Chemistry and Engineering of Forest Products, Guangxi
Collaborative Innovation Center for Chemistry and Engineering of Forest
Products, Guangxi University for Nationalities, No. 188, Daxue Dong Road, Nanning, Guangxi 530006, China
| |
Collapse
|
25
|
Design, synthesis and fungicidal activity of pyrazole-thiazole carboxamide derivatives. Mol Divers 2021; 26:205-214. [PMID: 33792811 DOI: 10.1007/s11030-020-10177-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Accepted: 12/11/2020] [Indexed: 10/21/2022]
Abstract
Twenty-one novel pyrazole-thiazole carboxamide derivatives were rationally designed and synthesized. Bioassay results indicated that 6d (EC50 = 5.11 μg/mL) and 6j (EC50 = 8.14 μg/mL) exhibited better in vitro activities than fluxapyroxad (EC50 = 11.93 μg/mL) and thifluzamide (EC50 = 22.12 μg/mL) against Rhizoctonia cerealis. Particularly, compound 6j showed promising in vivo protective activity against Rhizoctonia solani and Puccinia sorghi Schw. with 80% and 90% inhibition at 10 μg/mL, respectively. Our studies found that pyrazole-thiazole is a promising fungicide lead deserving for further derivation.
Collapse
|
26
|
Adamovich SN, Sadykov EK, Ushakov IA, Oborina EN, Belovezhets LA. Antibacterial activity of new silatrane pyrrole-2-carboxamide hybrids. MENDELEEV COMMUNICATIONS 2021. [DOI: 10.1016/j.mencom.2021.03.019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
27
|
Yang S, Ren CL, Ma TY, Zou WQ, Dai L, Tian XY, Liu XH, Tan CX. 1,2,4-Oxadiazole-Based Bio-Isosteres of Benzamides: Synthesis, Biological Activity and Toxicity to Zebrafish Embryo. Int J Mol Sci 2021; 22:ijms22052367. [PMID: 33673430 PMCID: PMC7956408 DOI: 10.3390/ijms22052367] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Revised: 02/17/2021] [Accepted: 02/24/2021] [Indexed: 02/07/2023] Open
Abstract
To discover new compounds with broad spectrum and high activity, we designed a series of novel benzamides containing 1,2,4-oxadiazole moiety by bioisosterism, and 28 benzamides derivatives with antifungal activity were synthesized. These compounds were evaluated against four fungi: Botrytis cinereal, FusaHum graminearum, Marssonina mali, and Thanatephorus cucumeris. The results indicated that most of the compounds displayed good fungicidal activities, especially against Botrytis cinereal. For example, 10a (84.4%), 10d (83.6%), 10e (83.3%), 10f (83.1%), 10i (83.3%), and 10l (83.6%) were better than pyraclostrobin (81.4%) at 100 mg/L. In addition, the acute toxicity of 10f to zebrafish embryo was 20.58 mg/L, which was classified as a low-toxicity compound.
Collapse
Affiliation(s)
| | | | | | | | | | | | | | - Cheng-Xia Tan
- Correspondence: ; Tel.: +86-571-8832-0238; Fax: +86-571-8832-0238
| |
Collapse
|
28
|
Synthesis and fungicidal activity of methyl (E)-1-(2-((E)-2-methoxy-1-(methoxyimino)-2-oxoethyl)benzyl)-2-(1-arylidene)hydrazine-1-carboxylates †‡. Mol Divers 2021; 26:801-813. [PMID: 33548013 DOI: 10.1007/s11030-021-10187-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 01/18/2021] [Indexed: 10/22/2022]
Abstract
To discover novel strobilurin fungicides, a series of methyl (E)-1-(2-((E)-2-methoxy-1-(methoxy-imino)-2-oxoethyl)benzyl)-2-(1-arylidene)hydrazine-1-carboxylates were designed based on the principle of biologically active splicing and the receptor target structure. The fungicidal activity results show that this class of compounds has excellent fungicidal activity, especially against S. sclerotiorum (Lib.) deBary, wheat white powder and puccinia polysora. The result of structure-activity relationship implied that the introduction of t-butyl in the side chain facilitates the hydrophobic interaction between the compound and the active site. The electrostatic effect of the substituents on the benzene ring is also a key factor affecting such activities. Among them, the compound I-1 not only showed a fungicidal effect comparable to that of kresoxim-methyl in vivo, but also had an excellent inhibitory effect on spore germination of P. oryzae Cav in vitro, which indicated that it could be used as a potential commercial fungicide for plant disease control.
Collapse
|
29
|
Design, synthesis and inhibitory activity of novel 2, 3-dihydroquinolin-4(1H)-one derivatives as potential succinate dehydrogenase inhibitors. Eur J Med Chem 2021; 214:113246. [PMID: 33582385 DOI: 10.1016/j.ejmech.2021.113246] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 01/25/2021] [Accepted: 01/26/2021] [Indexed: 11/23/2022]
Abstract
Thirty-three new 2, 3-dihydroquinolin-4(1H)-one analogues were designed, synthesized and characterized by IR, 1H NMR, 13C NMR and HRMS. The crystal structures of compounds 2g and 4l were characterized by single crystal X-ray diffraction. Their antifungal activities were determined against five plant pathogenic fungi namely Rhizoctonia solani, Fusarum graminearum, Helminthosporium maydis, Sclerotinia sclerotiorum and Botrytis cinerea. The results indicated that most of them revealed significant antifungal activity at 20 mg/L. Compound 4e showed the strongest antifungal activity against Botrytis cinerea and had better effects than the commercial fungicide fluopyram. Meanwhile, the active compounds were evaluated for their inhibitory activities against succinate dehydrogenase (SDH). The results displayed that they exhibited excellent activity. Compound 4e had better inhibitory activity than fluopyram. The molecular modeling results demonstrated that compound 4e could strongly bind to and interact with the binding sites of SDH. The inhibitory activity of 2, 3-dihydroquinolin-4(1H)-one derivatives against SDH has been reported for the first time.
Collapse
|
30
|
Xu H, Su J, Wang Z, Hou C, Wu P, Xing Y, Li X, Zhu X, Lu Y, Xu L. Synthesis, Design and Three-Dimensional Quantitative Structure Activity Relationship (3D-QSAR) Research of Phenylpyrrole Fungicides. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202102019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
31
|
Ning L, Wang S, Du L, Guo B, Zhang J, Lu H, Dong Y. Synthesis, bioactivity and 3D-QSAR of azamacrolide compounds with a carbamate or urea moiety as potential fungicides and inhibitors of quorum sensing. NEW J CHEM 2021. [DOI: 10.1039/d0nj05727d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Azamacrolides were synthesized and some azamacrolide compounds hold potential for the development of novel fungicides or inhibitors of quorum sensing.
Collapse
Affiliation(s)
- Lei Ning
- Department of Chemistry and Innovation Center of Pesticide Research
- China Agricultural University
- Beijing 100193
- China
| | - Simin Wang
- Department of Chemistry and Innovation Center of Pesticide Research
- China Agricultural University
- Beijing 100193
- China
| | - Lin Du
- College of Agronomy and Biotechnology
- China Agricultural University
- Beijing 100193
- China
| | - Bingyi Guo
- Department of Chemistry and Innovation Center of Pesticide Research
- China Agricultural University
- Beijing 100193
- China
| | - Jianjun Zhang
- Department of Chemistry and Innovation Center of Pesticide Research
- China Agricultural University
- Beijing 100193
- China
| | - Huizhe Lu
- Department of Chemistry and Innovation Center of Pesticide Research
- China Agricultural University
- Beijing 100193
- China
| | - Yanhong Dong
- Department of Chemistry and Innovation Center of Pesticide Research
- China Agricultural University
- Beijing 100193
- China
| |
Collapse
|
32
|
Quiroga D, Becerra LD, Coy-Barrera E. Solvent Free Three-Component Synthesis of 2,4,5-trisubstituted-1 H-pyrrol-3-ol-type Compounds from L-tryptophan: DFT-B3LYP Calculations for the Reaction Mechanism and 3 H-pyrrol-3-one↔1 H-pyrrol-3-ol Tautomeric Equilibrium. Molecules 2020; 25:molecules25194402. [PMID: 32992704 PMCID: PMC7582317 DOI: 10.3390/molecules25194402] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 09/19/2020] [Accepted: 09/24/2020] [Indexed: 11/16/2022] Open
Abstract
In this paper, we describe the solvent-free three-component synthesis of 2,4,5-trisubstituted-1H-pyrrol-3-ol-type compounds from L-tryptophan. The first step of the synthetic methodology involved the esterification of L-tryptophan in excellent yields (93-98%). Equimolar mixtures of alkyl 2-aminoesters, 1,3-dicarbonyl compounds, and potassium hydroxide (0.1 eq.) were heated under solvent-free conditions. The title compounds were obtained in moderate to good yields (45%-81%). Density functional theory using "Becke, 3-parameter, Lee-Yang-Parr" correlational functional (DFT-B3LYP) calculations were performed to understand the molecular stability of the synthesized compounds and the tautomeric equilibrium from 3H-pyrrol-3-one type intermediates to 1H-pyrrol-3-ol type aromatized rings.
Collapse
|
33
|
Yu B, Zhou S, Cao L, Hao Z, Yang D, Guo X, Zhang N, Bakulev VA, Fan Z. Design, Synthesis, and Evaluation of the Antifungal Activity of Novel Pyrazole-Thiazole Carboxamides as Succinate Dehydrogenase Inhibitors. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:7093-7102. [PMID: 32530619 DOI: 10.1021/acs.jafc.0c00062] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Succinate dehydrogenase (SDH) is regarded as a promising target for fungicide discovery. To continue our ongoing studies on the discovery of novel SDH inhibitors as fungicides, novel pyrazole-thiazole carboxamides were designed, synthesized, and evaluated for their antifungal activity. The results indicated that compounds 9ac, 9bf, and 9cb showed excellent in vitro activities against Rhizoctonia cerealis with EC50 values from 1.1 to 4.9 mg/L, superior to that of the commercial fungicide thifluzamide (EC50 = 23.1 mg/L). Compound 9cd (EC50 = 0.8 mg/L) was far more active than thifluzamide (EC50 = 4.9 mg/L) against Sclerotinia sclerotiorum. Compound 9ac exhibited promising in vivo activity against Rhizoctonia solani (90% at 10 mg/L), which was better than that of thifluzamide (80% at 10 mg/L). The field experiment showed that compound 9ac had 74.4% efficacy against Rhizoctonia solani on the 15th day after two consecutive sprayings at an application rate of 4.80 g a.i./667 m2, which was close to that of thifluzamide (83.3%). Furthermore, molecular docking explained the possible binding mode of compound 9ac in the RcSDH active site. Our studies indicated that the pyrazole-thiazole carboxamide hybrid is a new scaffold of SDH inhibitors.
Collapse
Affiliation(s)
- Bin Yu
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Shuang Zhou
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Lixin Cao
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Zesheng Hao
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Dongyan Yang
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Xiaofeng Guo
- College of Biology, Hunan University, Changsha 410082, P. R. China
| | - Nailou Zhang
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Vasiliy A Bakulev
- The Ural Federal University Named after the First President of Russia B. N. Yeltsin, Ekaterinburg 620002, Russia
| | - Zhijin Fan
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
| |
Collapse
|
34
|
Hua X, Liu W, Su Y, Liu X, Liu J, Liu N, Wang G, Jiao X, Fan X, Xue C, Liu Y, Liu M. Studies on the novel pyridine sulfide containing SDH based heterocyclic amide fungicide. PEST MANAGEMENT SCIENCE 2020; 76:2368-2378. [PMID: 32022382 DOI: 10.1002/ps.5773] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 01/12/2020] [Accepted: 02/05/2020] [Indexed: 06/10/2023]
Abstract
BACKGROUND Succinate dehydrogenase (SDH) has been identified as one of the most significant targets for fungicide discovery. To date, 23 commercial SDH inhibitor (SDHI) fungicides have been approved for plant protection since the first launch of carboxin in 1966, and extensively applied to combat destructive plant fungi. RESULTS In this project, 20 novel pyridine sulfide derivatives containing SDH-based heterocyclic amide fungicide were designed, synthesized, and characterized by proton nuclear magnetic resonance (1 H-NMR), carbon-13 (13 C)-NMR and high-resolution mass spectrometry (HRMS). In vitro fungicidal activity experiment, the target compound I-1 displayed excellent inhibitory rates against the common agricultural pathogens with half maximal effective concentration (EC50 ) values of 5.2 to 39.8 μg mL-1 . The in vivo fungicidal activities demonstrated that the compound I-1 could effectively prevent Botrytis cinerea from infecting tomato and cucumber leaves with the preventative rates of 67% and 50%. The mitochondrial membrane potential detection, SDH enzyme assay and the molecular docking simulation revealed that the mechanism of action of the compound I-1 and the relevant interactions with the target enzyme may be similar to those of the control fluopyram. CONCLUSION The biological activity screening and validation of mechanism of action indicated that the compound I-1 could be identified as a potential SDH inhibitor for further study. © 2020 Society of Chemical Industry.
Collapse
Affiliation(s)
- Xuewen Hua
- College of Agriculture, Liaocheng University, Liaocheng, P. R. China
| | - Wenrui Liu
- College of Agriculture, Liaocheng University, Liaocheng, P. R. China
| | - Yanyan Su
- College of Agriculture, Liaocheng University, Liaocheng, P. R. China
| | - Xinghai Liu
- College of Chemical Engineering and Materials Science, Zhejiang University of Technology, Hangzhou, P. R. China
| | - Jingbo Liu
- College of Horticulture and Landscape Architecture, Tianjin Agricultural University, Tianjin, P. R. China
| | - Nannan Liu
- College of Agriculture, Liaocheng University, Liaocheng, P. R. China
| | - Guiqing Wang
- College of Agriculture, Liaocheng University, Liaocheng, P. R. China
| | - Xueqin Jiao
- College of Agriculture, Liaocheng University, Liaocheng, P. R. China
| | - Xiaoyi Fan
- College of Agriculture, Liaocheng University, Liaocheng, P. R. China
| | - Chenmeng Xue
- College of Agriculture, Liaocheng University, Liaocheng, P. R. China
| | - Yi Liu
- College of Agriculture, Liaocheng University, Liaocheng, P. R. China
| | - Ming Liu
- College of Pharmacy, Binzhou Medical University, Yantai, P. R. China
| |
Collapse
|
35
|
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]
|
36
|
In silico studies of novel pyrazole-furan and pyrazole-pyrrole carboxamide as fungicides against Sclerotinia sclerotiorum. BENI-SUEF UNIVERSITY JOURNAL OF BASIC AND APPLIED SCIENCES 2020. [DOI: 10.1186/s43088-020-0038-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
Pyrazole-furan and pyrazole-pyrrole moiety are among the molecular structures that were found to have an extensive range of applications in the field of medicine and agrochemical due to their wide spectrum of biological activities. These include antimicrobial activity, anti-glaucoma activity, ocular hypertension activity, and antifungal activity.
Results
An in silico study was carried out on 37 compounds of pyrazole-furan and pyrazole-pyrrole carboxamide derivatives against Sclerotinia sclerotiorum. Using Spartan 14 software, optimization of the compounds was performed at the DFT/B3LYP/6-31G* quantum mechanical method. PaDEL descriptor software was used to calculate the molecular descriptors, and a Generic Function Approximation (GFA) was employed to generate the model. Out of four models generated, model 1 was found to be the optimal and has the following statistical parameters; R2 = 0.83485, R2adj = 0.793563, cross-validated R2 = 0.74037, and external R2 = 0.58479. Molecular docking study was carried out between the antifungal compounds, and the binding site of S. sclerotiorum (PDB CODE 2X2S) in which compound 7 was identified to have the highest binding energy of − 7.5kcal/mol. This compound “7” has a strong affinity with the macromolecular target point of the S. sclerotiorum (2x2s), producing H-bond and as well as the hydrophobic interaction at target point of the amino acid residue. Considering compound 7 as our scaffold, four (4) more potent compounds (7a, 7b, 7c, and 7d) were designed using optimization method of structure-based designed which have the following docking score, − 7.7, − 7.8, − 7.7, and − 7.7kcal/mol.
Conclusion
Statistical analyses including variance inflation factor (VIF), mean effect (ME), and applicability domain were conducted on the model. Considering an interpretation of the descriptors given in the discussion, the QSAR model provided an idea of ligand-based design while the molecular docking gave an insight on structure-based design of the new compounds with better activity against S. sclerotiorum in which four (4) compounds 7a, 7b, 7c, and 7d were designed and discovered to be of high quality and have greater binding affinity compared to the one obtained from the literature (compound 7).
Collapse
|
37
|
Cheng H, Liu HF, Yang L, Zhang R, Chen C, Wu Y, Jiang W. N-(3,5-Dichloro-4-(2,4,6-trichlorophenoxy)phenyl)benzenesulfonamide: A new dual-target inhibitor of mitochondrial complex II and complex III via structural simplification. Bioorg Med Chem 2020; 28:115299. [DOI: 10.1016/j.bmc.2019.115299] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Revised: 12/19/2019] [Accepted: 12/26/2019] [Indexed: 12/22/2022]
|
38
|
Yang X, Zhang S, Zhang L, Zhang B, Ren T. Rhombic Dodecahedral Cu
2
O‐Catalysed Synthesis of Novel Alkenyl Pyrazoles. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.201900959] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Xiaodong Yang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering/Key Laboratory of Green Pesticide and Agricultural Bioengineering Ministry of Education, Guizhou University 550025 Guiyang P. R. China
| | - Shupeng Zhang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering/Key Laboratory of Green Pesticide and Agricultural Bioengineering Ministry of Education, Guizhou University 550025 Guiyang P. R. China
| | - Lei Zhang
- The Key Laboratory of Resource Chemistry of Ministry of Education Shanghai Engineering Research Center of Green Energy Chemical Engineering College of Chemistry and Materials Science Shanghai Normal University 100 Guilin Road 200234 Shanghai P. R. China
| | - Bo Zhang
- The Key Laboratory of Resource Chemistry of Ministry of Education Shanghai Engineering Research Center of Green Energy Chemical Engineering College of Chemistry and Materials Science Shanghai Normal University 100 Guilin Road 200234 Shanghai P. R. China
| | - Tianrui Ren
- The Key Laboratory of Resource Chemistry of Ministry of Education Shanghai Engineering Research Center of Green Energy Chemical Engineering College of Chemistry and Materials Science Shanghai Normal University 100 Guilin Road 200234 Shanghai P. R. China
| |
Collapse
|
39
|
Liu H, Xia DG, Hu R, Wang W, Cheng X, Wang AL, Zhang Q, Lv XH. A bioactivity-oriented modification strategy for SDH inhibitors with superior activity against fungal strains. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2020; 163:271-279. [PMID: 31973867 DOI: 10.1016/j.pestbp.2019.11.024] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Revised: 11/27/2019] [Accepted: 11/30/2019] [Indexed: 06/10/2023]
Abstract
In this work, a total of 36 novel 5-(nicotinamido)-1-phenyl-1H-pyrazole-4-carboxylic acid derivatives were designed and synthesized successfully by introducing a carboxyl group based on the N-(1-(4-chlorophenyl)-4-cyano-1H-pyrazol-5-yl)-6-methoxynicotinamide. Among them, the growth inhibition assays on agar plates showed that compound 5IV-d(5-(2-chloronicotinamido)-1-(p-tolyl)-1H-pyrazole-4-carboxylic acid) exhibited the significant antifungal activity against four important fruit and main crop disease fungi (i.e., Valsa mali Miyabe et Yamada, Botryosphaeria dothidea, Helminthosporium maydis and Rhizoctonia cerealis) with EC50 values of 22.6, 14.5, 17.6 and 18.2 μM, respectively. In addition, 5IV-d showed the excellent inhibitory effect against SDH enzymes with IC50 values ranging from 9.4 to 15.6 μM. In vivo bioassay and molecular docking were applied to explore the potential in practical application and combination of modified structure and SDH. The results of structure-activity relationships indicates that the methoxy substitution at the benzene ring attached to the pyrazole ring and a wide variety of substituents could be responsible for the promising antifungal efficacy of the designed compounds. This study demonstrated that the compound 5IV-d can act as the most potent SDH inhibitor in the reported series of compounds.
Collapse
Affiliation(s)
- Hao Liu
- School of Science, Anhui Agricultural University, 230036 Hefei, People's Republic of China
| | - Dong-Guo Xia
- School of Science, Anhui Agricultural University, 230036 Hefei, People's Republic of China
| | - Rui Hu
- Central Iron &Steel Research Institute, 100081 Beijing, People's Republic of China
| | - Wei Wang
- School of Science, Anhui Agricultural University, 230036 Hefei, People's Republic of China
| | - Xiang Cheng
- School of Science, Anhui Agricultural University, 230036 Hefei, People's Republic of China
| | - Ai-Li Wang
- School of Science, Anhui Agricultural University, 230036 Hefei, People's Republic of China
| | - Qin Zhang
- School of Science, Anhui Agricultural University, 230036 Hefei, People's Republic of China
| | - Xian-Hai Lv
- School of Science, Anhui Agricultural University, 230036 Hefei, People's Republic of China; Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 637371, Singapore.
| |
Collapse
|
40
|
Design, Synthesis and Biological Activities of Novel N-Aryl-1H-pyrazole-5-carboxylate Derivatives. Chem Res Chin Univ 2019. [DOI: 10.1007/s40242-019-9274-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
|
41
|
Liu XH, Qiao L, Zhai ZW, Cai PP, Cantrell CL, Tan CX, Weng JQ, Han L, Wu HK. Novel 4-pyrazole carboxamide derivatives containing flexible chain motif: design, synthesis and antifungal activity. PEST MANAGEMENT SCIENCE 2019; 75:2892-2900. [PMID: 31050111 DOI: 10.1002/ps.5463] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Revised: 04/18/2019] [Accepted: 04/30/2019] [Indexed: 05/21/2023]
Abstract
BACKGROUND In recent years, carboxamide fungicides, targeting succinate dehydrogenase (SDH), have shown highly efficient and broad spectrum fungicidal activity. Structure-activity relationship (SAR) results for these commercial fungicides show that the carboxamide group was a key active group. This is useful information for the discovery of new pyrazole carboxamide derivatives with fungicidal activity. RESULTS Twenty-seven novel pyrazole carboxamides were designed and synthesized. Their fungicidal activities against Gibberella zeae, Phytophthora infestans, Phytophthora capsici, Rhizoctonia solani, Alternaria solani, Botrytis cinerea, Fusarium oxysporum, Cercospora arachidicola, Sclerotinia sclerotiorum and Physalospora piricola were tested; derivatives possessed excellent inhibitory at 50 mg L-1 in particular. Furthermore, some pyrazole carboxamides exhibited remarkably high activities against Sclerotinia sclerotiorum in vitro with EC50 values of 2.04 to 15.2 μg mL-1 . In addition, some compounds also exhibited high activities against Physalospora piricola, Cercospora arachidicola and Phytophthora capsici. Inhibition activities against SDH proved that the designed analogues were effective at the enzyme level. The SAR of these pyrazole carboxamides was studied by using the docking method. CONCLUSION It is possible that pyrazole carboxamides, which exhibit good activity against Sclerotinia sclerotiorum, can be further optimized as a lead compounds of carboxamide fungicides. © 2019 Society of Chemical Industry.
Collapse
Affiliation(s)
- Xing-Hai Liu
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, China
- Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, China
| | - Li Qiao
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, China
| | - Zhi-Wen Zhai
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, China
| | - Peng-Peng Cai
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, China
| | - Charles L Cantrell
- Agricultural Research Service, U.S. Department of Agriculture, Natural Products Utilization Research Unit, Oxford, MS, USA
| | - Chen-Xia Tan
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, China
| | - Jian-Quan Weng
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, China
| | - Liang Han
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, China
| | - Hong-Ke Wu
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, China
| |
Collapse
|
42
|
Wang G, Cui P, Bai H, Wei S, Li S. Late-Stage C-H Functionalization of Nicotinamides for the Expedient Discovery of Novel Antifungal Leads. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:11901-11910. [PMID: 31584275 DOI: 10.1021/acs.jafc.9b05349] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Encouraged by the successful flexible modifications of the succinate dehydrogenase inhibitors, antifungal activity guided by the divergent synthesis of nicotinamides of the prevalidated pharmacophore 2-(2-oxazolinyl)aniline was conducted. The work highlighted the first utilization of the late-stage C-H functionalization assisted by the innate pharmacophore for the discovery of promising agrochemicals. New synthetic methodology and antifungal exploration of alkoxylated nicotinamides were accomplished. Fifty-five functionalized nicotinamides of 7 types were rationally designed and efficiently prepared through C-H functionalization, which facilitated the acquirement of four N-para aryloxylated nicotinamides (E3, E13, E19, and E22) as potential antifungal candidates against Botrytis cinerea, with the EC50 values lower than 5 mg/L. In vivo/vitro biotest, molecular docking, and structural analysis reconfirmed the novelty and practical potential of the antifungal candidates E3 and E19. This operationally simple platform will provide various "polar parts" and offer intriguing opportunities for the optimization of the carboxamide fungicides and structure-related pharmaceuticals.
Collapse
Affiliation(s)
- Guotong Wang
- College of Plant Protection, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application , Nanjing Agricultural University , Nanjing 210095 , China
| | - Pengcheng Cui
- College of Plant Protection, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application , Nanjing Agricultural University , Nanjing 210095 , China
| | - Hongjin Bai
- Xinjiang Production & Construction Corps Key Laboratory of Protection and Utilization of Biological Resources in Tarim Basin , Tarim University , Alaer 843300 , China
| | - Sanyue Wei
- College of Plant Protection, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application , Nanjing Agricultural University , Nanjing 210095 , China
| | - Shengkun Li
- College of Plant Protection, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application , Nanjing Agricultural University , Nanjing 210095 , China
- Xinjiang Production & Construction Corps Key Laboratory of Protection and Utilization of Biological Resources in Tarim Basin , Tarim University , Alaer 843300 , China
| |
Collapse
|
43
|
Wang M, Du Y, Liu C, Yang X, Qin P, Qi Z, Ji M, Li X. Development of novel 2-substituted acylaminoethylsulfonamide derivatives as fungicides against Botrytis cinerea. Bioorg Chem 2019; 87:56-69. [DOI: 10.1016/j.bioorg.2019.03.017] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Revised: 03/05/2019] [Accepted: 03/08/2019] [Indexed: 12/16/2022]
|
44
|
Wang F, Peng Q, Liu J, Alolga RN, Zhou W. A novel ferulic acid derivative attenuates myocardial cell hypoxia reoxygenation injury through a succinate dehydrogenase dependent antioxidant mechanism. Eur J Pharmacol 2019; 856:172417. [PMID: 31132358 DOI: 10.1016/j.ejphar.2019.172417] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Revised: 05/14/2019] [Accepted: 05/23/2019] [Indexed: 12/16/2022]
Abstract
The molecular structure optimization aimed at definite target is expected to improve its anti-myocardial ischemia reperfusion (I/R) injury. Ferulic acid derivatives could probably attenuate myocardial I/R injury when optimized on account of definite target succinate dehydrogenase (SDH). Herein, an original compound hmy-paa (3-(4-hydroxy-3-methoxyphenyl)-N-(1H-pyrazol-3-yl)acrylamide), a combination of ferulic acid and active groups of enzyme inhibitor was synthesized, myocardial cell hypoxia reoxygenation (H/R) model were built, and SDH activity of myocardial cell was detected to investigate the effect of the derivative. Intriguingly, it could selectively inhibit SDH activity, and efficiently abate myocardial cell H/R injury. SDH is located in the mitochondrial inner membrane, and fluorescent hmy-paa could be observed to accumulate in cell and mitochondria through fluorescence inversion microscopy, which allows for more efficient SDH inhibition efficacy. By inhibiting SDH activity, hmy-paa could reduce oxidative damage by preventing excess production of intracellular reactive oxygen species as well as ensure energy production through the regulation of ATP level. The computational docking simulation exhibits a tightly bound mode between hmy-paa and SDH. Consequently, ferulic acid derivative hmy-paa is a new candidate for the treatment of myocardial H/R injury that exerts its therapeutic effect through a SDH dependent antioxidant mechanism. SDH could probably be a new target for drug discovery to alleviate myocardial I/R injury.
Collapse
Affiliation(s)
- Fei Wang
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 211198, Jiangsu, PR China
| | - Qingqing Peng
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 211198, Jiangsu, PR China
| | - Jinfeng Liu
- School of Basic Medical Sciences and Clinical Pharmacy, China Pharmaceutical University, Nanjing, 211198, Jiangsu, PR China
| | - Raphael N Alolga
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 211198, Jiangsu, PR China
| | - Wen Zhou
- Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research, Pharmaceutical Research Center and School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, Jiangsu, PR China.
| |
Collapse
|
45
|
Yan W, Wang X, Li K, Li TX, Wang JJ, Yao KC, Cao LL, Zhao SS, Ye YH. Design, synthesis, and antifungal activity of carboxamide derivatives possessing 1,2,3-triazole as potential succinate dehydrogenase inhibitors. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2019; 156:160-169. [PMID: 31027576 DOI: 10.1016/j.pestbp.2019.02.017] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Revised: 02/02/2019] [Accepted: 02/25/2019] [Indexed: 05/26/2023]
Abstract
Succinate dehydrogenase (SDH) is demonstrably one of the most important molecular targets in development of new fungicide. In our continuous efforts to discover novel SDH inhibitors, forty-two carboxamide derivatives containing 1,2,3-triazole ring were designed and synthesized, which were precisely characterized by 1H NMR, ESI-MS, elemental analysis and X-ray single-crystal diffraction. The compounds were screened for antifungal activities against phytopathogenic fungi by mycelia growth inhibition assay in vitro. Compound A3-3 exhibited significant antifungal activity against Sclerotinia sclerotiorum, Botrytis cinerea, Rhizoctonia cerealis and Gaeumannomyces graminsis with EC50 values of 1.08, 8.75, 1.67 and 5.30 μg/mL, respectively, comparable to those of commercial SDHI boscalid. In vivo testing demonstrated that A3-3 was effective for suppressing rape sclerotinia rot, cucumber grey mould and wheat powdery mildew caused by S. sclerotiorum, B. cinerea and Blumeria graminis at a dosage of 200 μg/mL. Inhibition activities against SDH test proved the designed analogues were effective in the enzyme level. The molecular docking simulation revealed that A3-3 interacted with ARG43,TYR58 and TRP173 of the SDH through hydrogen bond and pi-pi interaction, which could explain the probable mechanism of action between the inhibitor and target protein.
Collapse
Affiliation(s)
- Wei Yan
- State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China; Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing 210095, China
| | - Xing Wang
- State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China; Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing 210095, China
| | - Ke Li
- State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China; Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing 210095, China
| | - Tian-Xi Li
- State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China; Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing 210095, China
| | - Jia-Jie Wang
- State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China; Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing 210095, China
| | - Kai-Cheng Yao
- State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China; Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing 210095, China
| | - Ling-Ling Cao
- State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China; Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing 210095, China
| | - Shuang-Shuang Zhao
- State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China; Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing 210095, China
| | - Yong-Hao Ye
- State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China; Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing 210095, China.
| |
Collapse
|
46
|
Zhang A, Yue Y, Yang J, Shi J, Tao K, Jin H, Hou T. Design, Synthesis, and Antifungal Activities of Novel Aromatic Carboxamides Containing a Diphenylamine Scaffold. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:5008-5016. [PMID: 30977370 DOI: 10.1021/acs.jafc.9b00151] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
A series of novel N-(2-(phenylamino)-4-fluorophenyl)-pyrazole-4-carboxamides 1-15 and aromatic carboxamides with a diphenylamine scaffold 16-29 were designed, synthesized, and evaluated for their antifungal activities. In vitro experiments showed that compound 6 (EC50 = 0.03 mg/L) was superior to bixafen (EC50 = 0.04 mg/L) against Rhizoctoinia solani and compound 6 (IC50 = 1.41 mg/L) was close to bixafen (IC50 = 1.22 mg/L) against succinate dehydrogenase from R. solani. Additionally, in vivo pot experiments showed that compound 6 (EC50 = 1.93 mg/L) was better than bixafen (EC50 = 3.72 mg/L) and close to thifluzamide (EC50 = 1.83 mg/L) against R. solani. In vivo field trials showed that compound 6 at 200 g ai ha-1 had 64.10% control efficacy against rice sheath blight after 21 days with two sprayings, close to thifluzamide (71.40%). Furthermore, molecular docking showed that compound 6 anchors in the binding site of SDH.
Collapse
Affiliation(s)
- Aigui Zhang
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences , Sichuan University , Chengdu 610065 , Sichuan , P.R. China
| | - Ying Yue
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences , Sichuan University , Chengdu 610065 , Sichuan , P.R. China
| | - Jian Yang
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences , Sichuan University , Chengdu 610065 , Sichuan , P.R. China
| | - Jiaxing Shi
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences , Sichuan University , Chengdu 610065 , Sichuan , P.R. China
| | - Ke Tao
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences , Sichuan University , Chengdu 610065 , Sichuan , P.R. China
| | - Hong Jin
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences , Sichuan University , Chengdu 610065 , Sichuan , P.R. China
| | - Taiping Hou
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences , Sichuan University , Chengdu 610065 , Sichuan , P.R. China
| |
Collapse
|
47
|
Elnagdy HMF, Sarma D. FeCl 3
/PVP as Green Homogeneous Catalyst to Synthesize 5-Amino-1 H
-Pyrazole-4-Carbonitriles from Malononitrile Derivatives. ChemistrySelect 2019. [DOI: 10.1002/slct.201802919] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Hanan M. F. Elnagdy
- Department of Chemistry; Dibrugarh University; Dibrugarh 786004, Assam India
| | - Diganta Sarma
- Department of Chemistry; Dibrugarh University; Dibrugarh 786004, Assam India
| |
Collapse
|
48
|
Ren ZL, Liu H, Jiao D, Hu HT, Wang W, Gong JX, Wang AL, Cao HQ, Lv XH. Design, synthesis, and antifungal activity of novel cinnamon-pyrazole carboxamide derivatives. Drug Dev Res 2018; 79:307-312. [PMID: 30256430 DOI: 10.1002/ddr.21469] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Revised: 08/17/2018] [Accepted: 08/18/2018] [Indexed: 12/22/2022]
Abstract
Hit, Lead & Candidate Discovery To discover succinate dehydrogenase inhibitors with a novel structure, we introduced cinnamic acid structure to optimize the lead structure 1 and synthesized four series of cinnamon-pyrazole carboxamide derivatives. The bioassay data showed that compounds (E)-N-(1-[4-chlorophenyl]-4-cyano-1H-pyrazol-5-yl)-3-(2-fluorophenyl) acrylamide (5III-d) and (E)-3-(2-chlorophenyl)-N-(1-[4-chlorophenyl]-4-cyano-1H-pyrazol-5-yl) acrylamide (5III-f) showed the significant antifungal activity against three fungi. In addition, 5III-d and 5III-f exhibited the excellent inhibitory effect against succinate dehydrogenase (SDH) enzymes with IC50 values ranging from 19.4 to 28.7 μM. The study demonstrates that the chlorine substituent group is present on both the phenyl and pyrazole rings that have a very good effect on the antifungal effect, and the compounds 5III-d and 5III-f can act as potential SDH inhibitors (SDHI) and throw a sprat for a new generation of SDHI.
Collapse
Affiliation(s)
- Zi-Li Ren
- School of Science, Anhui Agricultural University, Hefei, People's Republic of China
| | - Hao Liu
- School of Science, Anhui Agricultural University, Hefei, People's Republic of China
| | - Di Jiao
- School of Science, Anhui Agricultural University, Hefei, People's Republic of China
| | - Hao-Tian Hu
- School of Science, Anhui Agricultural University, Hefei, People's Republic of China
| | - Wei Wang
- School of Science, Anhui Agricultural University, Hefei, People's Republic of China
| | - Jie-Xiu Gong
- School of Science, Anhui Agricultural University, Hefei, People's Republic of China
| | - Ai-Li Wang
- School of Science, Anhui Agricultural University, Hefei, People's Republic of China
| | - Hai-Qun Cao
- School of Plant Protection, Anhui Agricultural University, Hefei, People's Republic of China
| | - Xian-Hai Lv
- School of Science, Anhui Agricultural University, Hefei, People's Republic of China.,Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore
| |
Collapse
|
49
|
Zhang L, Li W, Xiao T, Song Z, Csuk R, Li S. Design and Discovery of Novel Chiral Antifungal Amides with 2-(2-Oxazolinyl)aniline as a Promising Pharmacophore. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:8957-8965. [PMID: 30092640 DOI: 10.1021/acs.jafc.8b02778] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Inspired by established succinate dehydrogenase inhibitors (SDHIs), our continuing efforts toward the discovery of chiral antifungal amides turned to the optimization of their polar regions with 2-(2-oxazolinyl)aniline as a known pharmacophore. Scaffold hopping and bioactivity-guided convergent synthesis enabled the identification of promising antifungal categories. Fine tuning of the substituents and chirality furnished seven amides (1s, 1t, 2d, 2h, 2j, 3k, and 2l) as antifungal candidates, with EC50 values lower than 5 mg/L. The first investigation of chiral amides of acyclic acids as SDHIs was conducted, and compound 2d was selected as a promising candidate against Botrytis cinerea, with a preventative efficacy of up to 93.9% at 50 mg/L, which is better than that of boscalid. The different binding models between compounds with different configurations were simulated for compound 2d and its diastereoisomers. The benefits of synthetic accessibility and cost-effectiveness highlight the practical potential for compound 2d as a good alternative to known SDHI fungicides.
Collapse
Affiliation(s)
- Lu Zhang
- Department of Pesticide Science, College of Plant Protection , Nanjing Agricultural University , Weigang 1 , Xuanwu District, Nanjing , Jiangsu 210095 , People's Republic of China
| | - Wei Li
- Department of Pesticide Science, College of Plant Protection , Nanjing Agricultural University , Weigang 1 , Xuanwu District, Nanjing , Jiangsu 210095 , People's Republic of China
| | - Taifeng Xiao
- Ningbo Customs District , Ningbo , Zhejiang 315012 , People's Republic of China
| | - Zehua Song
- Department of Pesticide Science, College of Plant Protection , Nanjing Agricultural University , Weigang 1 , Xuanwu District, Nanjing , Jiangsu 210095 , People's Republic of China
| | - René Csuk
- Organic Chemistry , Martin-Luther-University Halle-Wittenberg , Kurt-Mothes-Straße 2 , D-06120 Halle (Saale), Germany
| | - Shengkun Li
- Department of Pesticide Science, College of Plant Protection , Nanjing Agricultural University , Weigang 1 , Xuanwu District, Nanjing , Jiangsu 210095 , People's Republic of China
| |
Collapse
|
50
|
Lamberth C. Agrochemical lead optimization by scaffold hopping. PEST MANAGEMENT SCIENCE 2018; 74:282-292. [PMID: 28991418 DOI: 10.1002/ps.4755] [Citation(s) in RCA: 75] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2017] [Revised: 10/03/2017] [Accepted: 10/03/2017] [Indexed: 06/07/2023]
Abstract
Scaffold hopping, the exchange of a specific portion of a potential active ingredient with another substructure with the aim of finding isofunctional molecular structures with significantly different molecular backbones, often offers the chance in lead discovery or optimization to mitigate problems related to toxicity, intellectual property, and insufficient potency or stability. Scaffold hopping tools such as isosteric ring replacement including 1,3 nitrogen shift and cyclic imine-amide isosterism, but also ring opening and ring closure approaches, functional group isosterism, reversion of functional groups, chain shortening, chain lengthening, and scaffolds delivered by natural products, have become a permanent fixture of the innovation and optimization process in crop protection research. Their appropriate use will be explained through examples of success stories in the field of agrochemistry. Analogies to, but also differences from, the main categories of scaffold hopping in medicinal drug discovery are discussed. © 2017 Society of Chemical Industry.
Collapse
Affiliation(s)
- Clemens Lamberth
- Syngenta Crop Protection AG, Chemical Research, Stein, Switzerland
| |
Collapse
|