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Wang Z, Jiang W, Tang R, Liu H, Qian H, Guo T, Zhu J, Wu W, Xie W, Zhang J. Synthetic Modification and Insecticidal Activity of 4- epi-cis-Dihydroagarofuran Derivatives. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:15552-15560. [PMID: 38950523 DOI: 10.1021/acs.jafc.4c01690] [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: 07/03/2024]
Abstract
To synthesize the fundamental framework of dihydroagarofuran, a novel strategy was devised for constructing the C-ring through a dearomatization reaction using 6-methoxy-1-tetralone as the initial substrate. Subsequently, the dihydroagarofuran skeleton was assembled via two consecutive Michael addition reactions. The conjugated diene and trans-dihydroagarofuran skeleton were modified. The insecticidal activities of 33 compounds against Mythimna separata were evaluated. Compounds 11-5 exhibited an LC50 value of 0.378 mg/mL. The activity exhibited a remarkable 29-fold increase compared to positive control Celangulin V, which was widely recognized as the most renowned natural dihydroagarofuran polyol ester insecticidal active compound. Docking experiments between synthetic compounds and target proteins revealed the shared binding sites with Celangulin V. Structure-activity relationship studies indicated that methyl groups at positions C4 and C10 significantly improved insecticidal activity, while ether groups with linear chains displayed enhanced activity; in particular, the allyl ether group demonstrated optimal efficacy. Furthermore, a three-dimensional quantitative structure-activity relationship model was established to investigate the correlation between the skeletal structure and activity. These research findings provide valuable insights for discovering and developing dihydroagarofuran-like compounds.
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Affiliation(s)
- Ziyu Wang
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, Shaanxi, P. R. China
- Key Laboratory of Botanical Pesticide R&D in Shaanxi Province, Yangling 712100, P. R. China
| | - Wei Jiang
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, Shaanxi, P. R. China
| | - Rong Tang
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, Shaanxi, P. R. China
| | - Hongxiang Liu
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, Shaanxi, P. R. China
- Key Laboratory of Botanical Pesticide R&D in Shaanxi Province, Yangling 712100, P. R. China
| | - Hao Qian
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, Shaanxi, P. R. China
- Key Laboratory of Botanical Pesticide R&D in Shaanxi Province, Yangling 712100, P. R. China
| | - Tao Guo
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, Shaanxi, P. R. China
- Key Laboratory of Botanical Pesticide R&D in Shaanxi Province, Yangling 712100, P. R. China
| | - Jianjun Zhu
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, Shaanxi, P. R. China
- Key Laboratory of Botanical Pesticide R&D in Shaanxi Province, Yangling 712100, P. R. China
| | - Wenjun Wu
- Key Laboratory of Botanical Pesticide R&D in Shaanxi Province, Yangling 712100, P. R. China
| | - Weiqing Xie
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, Shaanxi, P. R. China
- Key Laboratory of Botanical Pesticide R&D in Shaanxi Province, Yangling 712100, P. R. China
| | - Jiwen Zhang
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, Shaanxi, P. R. China
- Key Laboratory of Botanical Pesticide R&D in Shaanxi Province, Yangling 712100, P. R. China
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Qian H, Hu Y, Wang Z, Zhou Y, Tan X, Feng X, Yu K, Wu W, Zhang J. In-Depth Structural Simplification of Celangulin V: Design, Synthesis, and Biological Activity. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:15142-15150. [PMID: 38926152 DOI: 10.1021/acs.jafc.4c01079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/28/2024]
Abstract
Celangulin V is a novel botanical insecticide with significant bioactivity and a unique molecular target, but its complex polyol ester structure hinders its broader application in agriculture. To discover new analogues of celangulin V with a simpler structure and enhanced biological activities, we initiated a research project aimed at simplifying its structure and assessing insecticidal efficacy. In this study, a series of novel 1-tetralone derivatives were designed via a structure-based rational design approach and synthesized by a facile method. The biological activities of the target compounds were determined against Mythimna separata (M. separata), Plutella xylostella, and Rhopalosiphum padi. The results revealed that most of the synthesized compounds exhibited superior activities compared to celangulin V. Remarkably, the insecticidal activity of compound 6.16 demonstrated 102-fold greater stomach toxicity than celangulin V against M. separata. In addition, certain compounds showed significant contact toxicity against M. separata, a finding not reported previously in the structural optimization studies of celangulin V. Molecular docking analysis illustrated that the binding pocket of compound 6.16 with the H subunit of V-ATPase was the same as celangulin V. This study presents novel insights into the structural optimization of botanical pesticides.
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Affiliation(s)
- Hao Qian
- College of Chemistry & Pharmacy, Shaanxi Key Laboratory of Natural Products & Chemical Biology, Northwest A&F University, Yangling, Shaanxi 712100, P. R. China
| | - Yingkun Hu
- College of Chemistry & Pharmacy, Shaanxi Key Laboratory of Natural Products & Chemical Biology, Northwest A&F University, Yangling, Shaanxi 712100, P. R. China
| | - Ziyu Wang
- College of Chemistry & Pharmacy, Shaanxi Key Laboratory of Natural Products & Chemical Biology, Northwest A&F University, Yangling, Shaanxi 712100, P. R. China
| | - Yu Zhou
- College of Chemistry & Pharmacy, Shaanxi Key Laboratory of Natural Products & Chemical Biology, Northwest A&F University, Yangling, Shaanxi 712100, P. R. China
| | - Xinru Tan
- College of Chemistry & Pharmacy, Shaanxi Key Laboratory of Natural Products & Chemical Biology, Northwest A&F University, Yangling, Shaanxi 712100, P. R. China
| | - Xunmeng Feng
- College of Chemistry & Pharmacy, Shaanxi Key Laboratory of Natural Products & Chemical Biology, Northwest A&F University, Yangling, Shaanxi 712100, P. R. China
| | - Keyin Yu
- College of Chemistry & Pharmacy, Shaanxi Key Laboratory of Natural Products & Chemical Biology, Northwest A&F University, Yangling, Shaanxi 712100, P. R. China
| | - Wenjun Wu
- Key Laboratory of Botanical Pesticide R&D in Shaanxi Province, Yangling, Shaanxi 712100, P. R. China
| | - Jiwen Zhang
- College of Chemistry & Pharmacy, Shaanxi Key Laboratory of Natural Products & Chemical Biology, Northwest A&F University, Yangling, Shaanxi 712100, P. R. China
- Key Laboratory of Botanical Pesticide R&D in Shaanxi Province, Yangling, Shaanxi 712100, P. R. China
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Tian Y, Ma S, Liu Y, Li Y, Chen G, Che Z. Synthesis of Novel 4-Acyloxy-2'-Bromo-6'-Chloropodophyllotoxin Derivatives Displaying Significant Insecticidal Activity Against Mythimna Separata. Chem Biodivers 2024; 21:e202400929. [PMID: 38661022 DOI: 10.1002/cbdv.202400929] [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: 04/16/2024] [Revised: 04/24/2024] [Accepted: 04/25/2024] [Indexed: 04/26/2024]
Abstract
In order to explore novel natural product-based insecticidal agent, two important intermediates (2 and 3) and 4-acyloxy-2'-bromo-6'-chloropodophyllotoxin derivatives (4 a-f and 5 a-f) were designed and prepared, and their structures were confirmed by 1H-NMR, 13C NMR, HRMS, ESI-MS, optical rotation and melting point (mp). The stereochemical configuration of compound 4 b was unambiguously confirmed by single-crystal X-ray diffraction. Moreover, we evaluated the insecticidal activity of target compounds 4 a-f and 5 a-f against a serious agricultural pest of Mythimna separata by using the leaf-dipping method. Among all tested compounds, compounds 4 d, 5 d and 5 f exhibited stronger insecticidal activity with a final mortality rate exceeding 60 %. Especially compound 5 d exhibited the best insecticidal activity, with a final mortality rate of 74.1 %. It has been proven that introducing bromine or chlorine atoms at the C-2', C-2' and C-6' positions of the E ring of podophyllotoxin can produce more potent compounds. In addition, the configuration of the C-4 position is important for insecticidal activity, and 4β-configuration is optimal. This will pave the way for further design, structural modification, and development of derivatives of podophyllotoxin as insecticidal agents.
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Affiliation(s)
- Yuee Tian
- Laboratory of Pesticidal Design & Synthesis, Department of Plant Protection, College of Horticultrue and Plant Protection, Henan University of Science and Technology, Luoyang, 471023, China
| | - Shiyue Ma
- Laboratory of Pesticidal Design & Synthesis, Department of Plant Protection, College of Horticultrue and Plant Protection, Henan University of Science and Technology, Luoyang, 471023, China
| | - Yibo Liu
- Laboratory of Pesticidal Design & Synthesis, Department of Plant Protection, College of Horticultrue and Plant Protection, Henan University of Science and Technology, Luoyang, 471023, China
| | - Yan Li
- Laboratory of Pesticidal Design & Synthesis, Department of Plant Protection, College of Horticultrue and Plant Protection, Henan University of Science and Technology, Luoyang, 471023, China
| | - Genqiang Chen
- Laboratory of Pesticidal Design & Synthesis, Department of Plant Protection, College of Horticultrue and Plant Protection, Henan University of Science and Technology, Luoyang, 471023, China
| | - Zhiping Che
- Laboratory of Pesticidal Design & Synthesis, Department of Plant Protection, College of Horticultrue and Plant Protection, Henan University of Science and Technology, Luoyang, 471023, China
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Cheng X, He H, Wang WX, Dong F, Zhang H, Ye J, Tan C, Wu Y, Lv X, Jiang X, Qin X. Semi-synthesis and characterization of some new matrine derivatives as insecticidal agents. PEST MANAGEMENT SCIENCE 2020; 76:2711-2719. [PMID: 32166856 DOI: 10.1002/ps.5817] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Revised: 03/06/2020] [Accepted: 03/12/2020] [Indexed: 06/10/2023]
Abstract
BACKGROUND Matrine is an important traditional plant-derived insecticide with broad-spectrum activity. However, due to its moderate activity, matrine is mainly applied in combination with other pesticides. In order to discover new potential natural-product-based crop protection agents, a series of matrine derivatives characterized by cyclohexylamine group were synthesized to screen their insecticidal activity against seven typically agricultural pests. RESULTS The structural configurations of compounds were characterized by IR, 1 H NMR, 13 C NMR, MS and XRD, with the pure yields of 42%, 65% and 71%, respectively. Although all compounds showed poor insecticidal activity against five lepidoptera pests, the compounds 2 and 4 displayed remarkable insecticidal activities against Lipaphis erysimi and Mulberry Root-Knot Nematode with a concentration-dependent manner within 0.5~1.5 mg/ mL. Compared with matrine (60%), compounds 2 and 4 exhibited potent insecticidal activities against L. erysimi, with a corrected mortality of 83.3% and 89.7%, respectively. They also showed excellent control effects on Mulberry Root-Knot Nematode, with corrected mortality as high as 88% and 80%, respectively. CONCLUSION All four synthesized matrine derivatives showed poor insecticidal activity against five lepidoptera pests, but the compounds 2 and 4 exhibited much stronger insecticidal activities against L. erysimi and Mulberry Root-Knot Nematode than matrine. Combined with the structural characteristics of compounds 1~4, we conclude that 4-methylcyclohexylamine, not the carbon disulfide group or cyclohexylamine group alone, mainly contributed to the improvement of insecticidal activities of matrine derivatives against these two agricultural pests. This work provides a direction and foundation for structural optimization of the matrine pesticides in the future. © 2020 Society of Chemical Industry.
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Affiliation(s)
- Xingan Cheng
- Institute of Natural Product Chemistry, College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong, 510225, China
- Department of Ocean Science, The Hong Kong University of Science and Technology (HKUST),Clear Water Bay, Kowloon, Hong Kong, China
| | - Huiqing He
- Institute of Natural Product Chemistry, College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong, 510225, China
| | - Wen-Xiong Wang
- School of Energy and Environment and State Key Laboratory of Marine Pollution, City University of Hong Kong, Kowloon, Hong Kong
| | - Fangyun Dong
- Institute of Natural Product Chemistry, College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong, 510225, China
| | - Hanhui Zhang
- Institute of Natural Product Chemistry, College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong, 510225, China
| | - Jingmin Ye
- Institute of Natural Product Chemistry, College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong, 510225, China
| | - Chuncan Tan
- Institute of Natural Product Chemistry, College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong, 510225, China
| | - Yuehua Wu
- Institute of Natural Product Chemistry, College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong, 510225, China
| | - Xiaojing Lv
- Institute of Natural Product Chemistry, College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong, 510225, China
| | - Xuhong Jiang
- Institute of Natural Product Chemistry, College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong, 510225, China
| | - Xiangjing Qin
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences (CAS), Guangzhou, 510301, China
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Synthesis of β-Dihydroagarofuran Derivatives and Preliminary Research on Their Insecticidal Activity. Chem Nat Compd 2019. [DOI: 10.1007/s10600-019-02894-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Yang C, Li X, Wei J, Zhu F, Gang F, Wei S, Zhao Y, Zhang J, Wu W. Synthesis and insecticidal activity in vitro and vivo of novel benzenesulfonyl derivatives based on potent target subunit H of V-ATPase. Bioorg Med Chem Lett 2018; 28:3164-3167. [PMID: 30172616 DOI: 10.1016/j.bmcl.2018.08.030] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Revised: 08/23/2018] [Accepted: 08/25/2018] [Indexed: 12/18/2022]
Abstract
Two lead compounds with benzenesulfonamide were found through virtual screening based on the 3D structure of the subunit H of V-ATPase in previous study. 74 benzenesulfonyl derivatives were synthesized and their insecticidal activities were evaluated. The derivatives with propargyl substituents exhibit excellent insecticidal activities against Mythimna separata Walker. The LD50 values of compounds A5.7 (28.0 μg·g-1) and B5.7 (36.4 μg·g-1) were significantly less than that of Celangulin V (344.0 μg·g-1). Furthermore, Isothermal Titration Calorimetry (ITC) data indicate there is a strong binding affinity between A5.7 and V-ATPase Subunit H. These results demonstrate that it is a practical way to develop pesticides targeting at H subunit of V-ATPase.
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Affiliation(s)
- Chaofu Yang
- College of Chemistry & Pharmacy, Shaanxi Key Laboratory of Natural Products & Chemical Biology, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China
| | - Xiaoting Li
- College of Chemistry & Pharmacy, Shaanxi Key Laboratory of Natural Products & Chemical Biology, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China
| | - Jielu Wei
- College of Chemistry & Pharmacy, Shaanxi Key Laboratory of Natural Products & Chemical Biology, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China
| | - Feng Zhu
- College of Chemistry & Pharmacy, Shaanxi Key Laboratory of Natural Products & Chemical Biology, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China
| | - Fangli Gang
- College of Chemistry & Pharmacy, Shaanxi Key Laboratory of Natural Products & Chemical Biology, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China
| | - Shaopeng Wei
- Key Laboratory of Botanical Pesticide R&D in Shaanxi Province, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China
| | - Yunlong Zhao
- College of Chemistry & Pharmacy, Shaanxi Key Laboratory of Natural Products & Chemical Biology, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China
| | - Jiwen Zhang
- College of Chemistry & Pharmacy, Shaanxi Key Laboratory of Natural Products & Chemical Biology, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China; Key Laboratory of Botanical Pesticide R&D in Shaanxi Province, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China.
| | - Wenjun Wu
- Key Laboratory of Botanical Pesticide R&D in Shaanxi Province, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China.
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Xi X, Zhao X, Zhu F, Wei J, Hu Z, Wu W, Zhang J. Synthesis and Insecticidal Activity of β-Dihydroagarofuran Acetal Derivatives. Nat Prod Commun 2018. [DOI: 10.1177/1934578x1801300404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
To search for improved insecticidal compounds based on β-dihydroagarofuran sesquiterpenoids, forty-four β-dihydroagarofuran acetal derivatives were designed and synthesized. Insecticidal activities and structure-activity relationship of these target compounds were evaluated. Some of the newly synthesized β-dihydroagarofuran acetal compounds were found to show higher insecticidal activity against sixth-instar larvae of Mythimna separate. Especially, compounds 2.2.9, 2.2.10, 2.2.11, 2.3.4, 2.3.6, 2.3.7, 2.5.4, 2.5.7 had great insecticidal activities with lower LD50 than that of the positive control celangulin-V (110.13 μg/g). It deserves mentioning that compound 2.2.11 showed the lowest LD50 (60.33 μg/g) among these compounds. Structure-activity relationship results suggested that the substituent groups of 1-, 6- and 9-positions of the target structures could greatly affect the insecticidal activity. Especially, when the substituent groups of 6-position were n-propyl, n-butyl, allyl, propargyl, o-fluorobenzyl, and p-fluorobenzyl, the compounds showed outstanding insecticidal activities.
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Affiliation(s)
- Xin Xi
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi 712100, P. R. China
| | - Ximei Zhao
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi 712100, P. R. China
| | - Feng Zhu
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi 712100, P. R. China
| | - Jielu Wei
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi 712100, P. R. China
| | - Zhan Hu
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi 712100, P. R. China
| | - Wenjun Wu
- Key Laboratory of Botanical Pesticide R & D in Shaanxi Province, Yangling, Shaanxi 712100, P. R. China
| | - Jiwen Zhang
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi 712100, P. R. China
- Key Laboratory of Botanical Pesticide R & D in Shaanxi Province, Yangling, Shaanxi 712100, P. R. China
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Wei J, Li D, Xi X, Liu L, Zhao X, Wu W, Zhang J. Molecular Insights into the Potential Insecticidal Interaction of β-Dihydroagarofuran Derivatives with the H Subunit of V-ATPase. Molecules 2017; 22:molecules22101701. [PMID: 29019960 PMCID: PMC6151423 DOI: 10.3390/molecules22101701] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Revised: 10/03/2017] [Accepted: 10/06/2017] [Indexed: 12/05/2022] Open
Abstract
Celangulin V (CV), one of dihydroagarofuran sesquiterpene polyesters isolated from Chinese bittersweet (Celastrus angulatus Maxim), is famous natural botanical insecticide. Decades of research suggests that is displays excellent insecticidal activity against some insects, such as Mythimna separata Walker. Recently, it has been validated that the H subunit of V-ATPase is one of the target proteins of the insecticidal dihydroagarofuran sesquiterpene polyesters. As a continuation of the development of new pesticides from these natural products, a series of β-dihydroagarofuran derivatives have been designed and synthesized. The compound JW-3, an insecticidal derivative of CV with a p-fluorobenzyl group, exhibits higher insecticidal activity than CV. In this study, the potential inhibitory effect aused by the interaction of JW-3 with the H subunit of V-ATPase c was verified by confirmatory experiments at the molecular level. Both spectroscopic techniques and isothermal titration calorimetry measurements showed the binding of JW-3 to the subunit H of V-ATPase was specific and spontaneous. In addition, the possible mechanism of action of the compound was discussed. Docking results indicated compound JW-3 could bind well in ‘the interdomain cleft’ of the V-ATPase subunit H by the hydrogen bonding and make conformation of the ligand–protein complex become more stable. All results are the further validations of the hypothesis, that the target protein of insecticidal dihydroagarofuran sesquiterpene polyesters and their β-dihydroagarofuran derivatives is the subunit H of V-ATPase. The results also provide new ideas for developing pesticides acting on V-ATPase of insects.
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Affiliation(s)
- Jielu Wei
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, Shaanxi, China.
| | - Ding Li
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, Shaanxi, China.
| | - Xin Xi
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, Shaanxi, China.
| | - Lulu Liu
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, Shaanxi, China.
| | - Ximei Zhao
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, Shaanxi, China.
| | - Wenjun Wu
- Key Laboratory of Botanical Pesticide R&D in Shaanxi Province, Yangling 712100, Shaanxi, China.
| | - Jiwen Zhang
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, Shaanxi, China.
- Key Laboratory of Botanical Pesticide R&D in Shaanxi Province, Yangling 712100, Shaanxi, China.
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Zhao X, Xi X, Hu Z, Wu W, Zhang J. Exploration of Novel Botanical Insecticide Leads: Synthesis and Insecticidal Activity of β-Dihydroagarofuran Derivatives. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2016; 64:1503-1508. [PMID: 26852924 DOI: 10.1021/acs.jafc.5b05782] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The discovery of novel leads and new mechanisms of action is of vital significance to the development of pesticides. To explore lead compounds for botanical insecticides, 77 β-dihydroagarofuran derivatives were designed and synthesized. Their structures were mainly confirmed by (1)H NMR, (13)C NMR, DEPT-135°, IR, MS, and HRMS. Their insecticidal activity was evaluated against the third-instar larvae of Mythimna separata Walker, and the results indicated that, of these derivatives, eight exhibited more promising insecticidal activity than the positive control, celangulin-V. Particularly, compounds 5.7, 6.6, and 6.7 showed LD50 values of 37.9, 85.1, and 21.1 μg/g, respectively, which were much lower than that of celangulin-V (327.6 μg/g). These results illustrated that β-dihydroagarofuran ketal derivatives can be promising lead compounds for developing novel mechanism-based and highly effective botanical insecticides. Moreover, some newly discovered structure-activity relationships are discussed, which may provide some important guidance for insecticide development.
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Affiliation(s)
- Ximei Zhao
- College of Science, Northwest A&F University , Yangling, Shaanxi 712100, People's Republic of China
| | - Xin Xi
- College of Science, Northwest A&F University , Yangling, Shaanxi 712100, People's Republic of China
| | - Zhan Hu
- College of Science, Northwest A&F University , Yangling, Shaanxi 712100, People's Republic of China
| | - Wenjun Wu
- Key Laboratory of Botanical Pesticide R&D in Shaanxi Province , Yangling, Shaanxi 712100, People's Republic of China
| | - Jiwen Zhang
- College of Science, Northwest A&F University , Yangling, Shaanxi 712100, People's Republic of China
- Key Laboratory of Botanical Pesticide R&D in Shaanxi Province , Yangling, Shaanxi 712100, People's Republic of China
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