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Che Z, Guo X, Li Y, Zhang S, Zhu L, He J, Sun D, Guo Y, Liu Y, Wei R, Huang X, Liu S, Chen G, Tian Y. Synthesis of paeonol ester derivatives and their insecticidal, nematicidal, and anti-oomycete activities. PEST MANAGEMENT SCIENCE 2022; 78:3442-3455. [PMID: 35567371 DOI: 10.1002/ps.6985] [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] [Received: 01/25/2022] [Revised: 04/06/2022] [Accepted: 05/14/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Paeonol is extracted and isolated as a rich and sustainable natural bioresource from the root bark of Paeonia suffruticosa, the derivatives of which exhibit numerous biological activities. It is well known that ester compounds play a very important role in pest control, such as organophosphorus, carbamate and pyrethroid pesticides. RESULTS To discover biorational natural product-based pesticides, three series of (60) paeonol ester derivatives (7a-t, 8g,p, 9g,p, 10g-j,n-u, 11g,u, 12g,u, 13a-p, 14b,c, and 15b,c) were prepared by structural modification of paeonol, and their structures were well characterized by proton nuclear magnetic resonance (1 H-NMR), carbon-13 nuclear magnetic resonance (13 C-NMR), high-resolution mass spectrometry (HRMS), and melting point. Furthermore, we assessed the compounds as insecticidal, nematicidal, and anti-oomycete agents against three serious agricultural pests, Mythimna separata, Heterodera glycines, and Phytophthora capsici. Among all tested compounds: (i) compound 8p showed more significant insecticidal activity than toosendanin, and the final mortality rates of 8p and toosendanin against M. separata (1 mg mL-1 ) were 70.4%, and 51.9%, respectively; (ii) compound 7a exhibited more promising nematicidal activity than paeonol, and the median lethal concentration (LC50 ) values of 7a and 1 against H. glycines were 15.47 and 50.80 mg L-1 , respectively; (iii) compounds 7n and 13m displayed more significant anti-oomycete activity compared to zoxamide against Phytophthora capsici, and the median effective concentration (EC50 ) values of 7n, 13m, and zoxamide were 23.72, 24.51, and 26.87 mg L-1 , respectively; and the protective effect of the compounds against Phytophthora capsici in vivo further confirmed the effectiveness of the agents. CONCLUSION This study suggested that the introduction of a nitro at the C5 or C3 position of paeonol could improve its bioactivity against M. separata, H. glycines, and Phytophthora capsici. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Zhiping Che
- Laboratory of Pesticidal Design and Synthesis, Department of Plant Protection, College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang, China
| | - Xiaolong Guo
- Laboratory of Pesticidal Design and Synthesis, Department of Plant Protection, College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang, China
| | - Yuanhao Li
- Laboratory of Pesticidal Design and Synthesis, Department of Plant Protection, College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang, China
| | - Song Zhang
- Laboratory of Pesticidal Design and Synthesis, Department of Plant Protection, College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang, China
| | - Lina Zhu
- Laboratory of Pesticidal Design and Synthesis, Department of Plant Protection, College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang, China
| | - Jiaxuan He
- Laboratory of Pesticidal Design and Synthesis, Department of Plant Protection, College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang, China
| | - Di Sun
- Laboratory of Pesticidal Design and Synthesis, Department of Plant Protection, College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang, China
| | - Yihao Guo
- Laboratory of Pesticidal Design and Synthesis, Department of Plant Protection, College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang, China
| | - Yibo Liu
- Laboratory of Pesticidal Design and Synthesis, Department of Plant Protection, College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang, China
| | - Ruxue Wei
- Laboratory of Pesticidal Design and Synthesis, Department of Plant Protection, College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang, China
| | - Xiaobo Huang
- Laboratory of Pesticidal Design and Synthesis, Department of Plant Protection, College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang, China
| | - Shengming Liu
- Laboratory of Pesticidal Design and Synthesis, Department of Plant Protection, College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang, China
| | - Genqiang Chen
- Laboratory of Pesticidal Design and Synthesis, Department of Plant Protection, College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang, China
| | - Yuee Tian
- Laboratory of Pesticidal Design and Synthesis, Department of Plant Protection, College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang, China
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Chen GQ, Zhu LN, Yang JM, Zhang S, Li YH, Guo XL, Sun D, He JX, Tian YE, Liu SM, Jiang J, Huang XB, Che ZP. Synthesis of novel 3/5(3,5)-(di)nitropaeonol hydrazone derivatives as nematicidal agents. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2022; 24:66-75. [PMID: 33550877 DOI: 10.1080/10286020.2021.1874941] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 01/06/2021] [Accepted: 01/07/2021] [Indexed: 06/12/2023]
Abstract
Eighteen novel 3/5(3,5)-(di)nitropaeonol hydrazone derivatives were prepared, and their structures well characterized by 1H NMR, HRMS, and mp. Due to the steric hindrance, the substituents on the C = N double bond of all hydrazine compounds (except E/Z = 4/1 for IV-1g, IV-1l, IV-2b, and E/Z = 3/2 for IV-1n, IV-3a) adopted E configuration. Among all compounds, four compounds 2, 4, IV-1j, and IV-1n exhibited potent nematicidal activity than their precursor paeonol, especially 5-nitropaeonol (2) and 3,5-dinitropaeonol (4) displayed the most potent nematicidal activity Heterodera glycines in vivo with LC50 values of 32.3307 and 36.7074 mg/L, respectively.
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Affiliation(s)
- Gen-Qiang Chen
- Laboratory of Pesticidal Design & Synthesis, Department of Plant Protection, College of Forestry, Henan University of Science and Technology, Luoyang 471023, China
| | - Li-Na Zhu
- Laboratory of Pesticidal Design & Synthesis, Department of Plant Protection, College of Forestry, Henan University of Science and Technology, Luoyang 471023, China
| | - Jin-Ming Yang
- Laboratory of Pesticidal Design & Synthesis, Department of Plant Protection, College of Forestry, Henan University of Science and Technology, Luoyang 471023, China
| | - Song Zhang
- Laboratory of Pesticidal Design & Synthesis, Department of Plant Protection, College of Forestry, Henan University of Science and Technology, Luoyang 471023, China
| | - Yuan-Hao Li
- Laboratory of Pesticidal Design & Synthesis, Department of Plant Protection, College of Forestry, Henan University of Science and Technology, Luoyang 471023, China
| | - Xiao-Long Guo
- Laboratory of Pesticidal Design & Synthesis, Department of Plant Protection, College of Forestry, Henan University of Science and Technology, Luoyang 471023, China
| | - Di Sun
- Laboratory of Pesticidal Design & Synthesis, Department of Plant Protection, College of Forestry, Henan University of Science and Technology, Luoyang 471023, China
| | - Jia-Xuan He
- Laboratory of Pesticidal Design & Synthesis, Department of Plant Protection, College of Forestry, Henan University of Science and Technology, Luoyang 471023, China
| | - Yue-E Tian
- Laboratory of Pesticidal Design & Synthesis, Department of Plant Protection, College of Forestry, Henan University of Science and Technology, Luoyang 471023, China
| | - Sheng-Ming Liu
- Laboratory of Pesticidal Design & Synthesis, Department of Plant Protection, College of Forestry, Henan University of Science and Technology, Luoyang 471023, China
| | - Jia Jiang
- Laboratory of Pesticidal Design & Synthesis, Department of Plant Protection, College of Forestry, Henan University of Science and Technology, Luoyang 471023, China
| | - Xiao-Bo Huang
- Laboratory of Pesticidal Design & Synthesis, Department of Plant Protection, College of Forestry, Henan University of Science and Technology, Luoyang 471023, China
| | - Zhi-Ping Che
- Laboratory of Pesticidal Design & Synthesis, Department of Plant Protection, College of Forestry, Henan University of Science and Technology, Luoyang 471023, China
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