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Tang X, Lei L, Liao A, Sun W, Zhang J, Wu J. Morpholine Derivatives in Agrochemical Discovery and Development. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:13197-13208. [PMID: 37583294 DOI: 10.1021/acs.jafc.3c03818] [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: 08/17/2023]
Abstract
Derivatives of morpholine are biologically active organic compounds with special structures discovered in multiple drugs. As a result of the terminal pharmacophore of action and extraordinary activity, they attracted fair attention with regard to pesticide innovation and development. Analysis of brief structure-activity relationships and the summarization of the characteristics of pesticides containing morpholine fragments with efficient activity are key steps in the development of novel pesticides. This review primarily overviews morpholine compounds with insecticidal, fungicidal, herbicidal, antiviral, and plant growth regulation properties to provide educational insight for the creation of new morpholine-containing compounds.
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Affiliation(s)
- Xu Tang
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang, Guizhou 550025, People's Republic of China
| | - Li Lei
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang, Guizhou 550025, People's Republic of China
| | - Anjing Liao
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang, Guizhou 550025, People's Republic of China
| | - Wei Sun
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang, Guizhou 550025, People's Republic of China
| | - Jian Zhang
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang, Guizhou 550025, People's Republic of China
| | - Jian Wu
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang, Guizhou 550025, People's Republic of China
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Barber DM. A Competitive Edge: Competitor Inspired Scaffold Hopping in Herbicide Lead Optimization. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:11075-11090. [PMID: 35271269 DOI: 10.1021/acs.jafc.1c07910] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Over the years, scaffold hopping has proven to be a powerful tool in the agrochemical optimization process. It offers the opportunity to modify known molecular lead structures to improve a range of parameters, including biological efficacy and spectrum, physicochemical properties, toxicity, stability, and to secure new intellectual property. Very often the disclosure of a new chemical structure can spark a multitude of competitor activities, where scaffold hopping plays a crucial role in the optimization process as well as for the generation of new intellectual property. Herein, recent examples of scaffold hopping in early phase herbicide research based on competitor inspired activities will be discussed using examples of how these research campaigns can often result in the registration of new crop protection products.
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Affiliation(s)
- David M Barber
- Research and Development, Weed Control Chemistry, Bayer AG, Crop Science Division, Industriepark Höchst, 65926 Frankfurt am Main, Germany
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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.
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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
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Zhao LX, Jiang MJ, Hu JJ, Zou YL, Cheng Y, Ren T, Gao S, Fu Y, Ye F. Design, Synthesis, and Herbicidal Activity of Novel Diphenyl Ether Derivatives Containing Fast Degrading Tetrahydrophthalimide. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:3729-3741. [PMID: 32125836 DOI: 10.1021/acs.jafc.0c00947] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
To seek new protoporphyrinogen oxidase (PPO) inhibitors with better biological activity, a series of novel diphenyl ether derivatives containing tetrahydrophthalimide were designed based on the principle of substructure splicing and bioisomerization. PPO inhibition experiments exhibited that 6c is the most potential compound, with the half-maximal inhibitory concentration (IC50) value of 0.00667 mg/L, showing 7 times higher activity than Oxyfluorfen (IC50 = 0.0426 mg/L) against maize PPO and similar herbicidal activities to Oxyfluorfen in weeding experiments in greenhouses and field weeding experiments. In view of the inspected bioactivities, the structure-activity relationship (SAR) of this series of compounds was also discussed. Crop selection experiments demonstrate that compound 6c is safe for soybeans, maize, rice, peanuts, and cotton at a dose of 300 g ai/ha. Accumulation analysis experiments showed that the accumulation of 6c in some crops (soybeans, peanuts, and cotton) was significantly lower than Oxyfluorfen. Current work suggests that compound 6c may be developed as a new herbicide candidate in fields.
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Affiliation(s)
- Li-Xia Zhao
- Department of Applied Chemistry, College of Science, Northeast Agricultural University, Harbin 150030, China
| | - Mao-Jun Jiang
- Department of Applied Chemistry, College of Science, Northeast Agricultural University, Harbin 150030, China
| | - Jia-Jun Hu
- Department of Applied Chemistry, College of Science, Northeast Agricultural University, Harbin 150030, China
| | - Yue-Li Zou
- Department of Applied Chemistry, College of Science, Northeast Agricultural University, Harbin 150030, China
| | - Yuan Cheng
- Department of Applied Chemistry, College of Science, Northeast Agricultural University, Harbin 150030, China
| | - Tao Ren
- Department of Applied Chemistry, College of Science, Northeast Agricultural University, Harbin 150030, China
| | - Shuang Gao
- Department of Applied Chemistry, College of Science, Northeast Agricultural University, Harbin 150030, China
| | - Ying Fu
- Department of Applied Chemistry, College of Science, Northeast Agricultural University, Harbin 150030, China
| | - Fei Ye
- Department of Applied Chemistry, College of Science, Northeast Agricultural University, Harbin 150030, China
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Fu Q, Cai PP, Cheng L, Zhong LK, Tan CX, Shen ZH, Han L, Xu TM, Liu XH. Synthesis and herbicidal activity of novel pyrazole aromatic ketone analogs as HPPD inhibitor. PEST MANAGEMENT SCIENCE 2020; 76:868-879. [PMID: 31429196 DOI: 10.1002/ps.5591] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Revised: 08/07/2019] [Accepted: 08/16/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND 4-Hydroxyphenylpyruvate dioxygenase (HPPD, EC 1.13.11.27) has been a good target for herbicide discovery. In order to discover novel HPPD herbicides, a series of pyrazole aromatic ketone analogs were designed and synthesized. RESULTS The 25 pyrazole aromatic ketone analogs synthesized were tested for herbicidal activity and compounds A1, A3, A4, A17, A20 and A25 displayed excellent herbicidal activity against Chenopodium serotinum, Stellaria media and Brassica juncea at 37.5 g ha-1 . In addition, compounds A1, A5, A9, A10, A16, A17, A20 and A25 exhibited good crop selectivity for wheat, maize and rice at 150 g ha-1 . Inhibition activities against AtHPPD proved the compounds were HPPD inhibitors. The structure-activity relationship of these pyrazole aromatic ketone analogs was studied using molecular docking. CONCLUSION These pyrazole aromatic ketone derivatives could be used as lead structures for development of HPPD herbicides against dicotyledonous weeds with further structure modification. © 2019 Society of Chemical Industry.
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Affiliation(s)
- Qing Fu
- Institute of Pesticide, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, China
- Synthesis Centre, Zhejiang Base of National Southern Pesticide Research Centre, Zhejiang Research Institute of Chemical Industry, Hangzhou, China
| | - Peng-Peng Cai
- Institute of Pesticide, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, China
- Synthesis Centre, Zhejiang Base of National Southern Pesticide Research Centre, Zhejiang Research Institute of Chemical Industry, Hangzhou, China
| | - Long Cheng
- Institute of Pesticide, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, China
- Synthesis Centre, Zhejiang Base of National Southern Pesticide Research Centre, Zhejiang Research Institute of Chemical Industry, Hangzhou, China
| | - Liang-Kun Zhong
- Institute of Pesticide, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, China
- Synthesis Centre, Zhejiang Base of National Southern Pesticide Research Centre, Zhejiang Research Institute of Chemical Industry, Hangzhou, China
| | - Cheng-Xia Tan
- Institute of Pesticide, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, China
| | - Zhong-Hua Shen
- Institute of Pesticide, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, China
| | - Liang Han
- Institute of Pesticide, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, China
| | - Tian-Ming Xu
- Synthesis Centre, Zhejiang Base of National Southern Pesticide Research Centre, Zhejiang Research Institute of Chemical Industry, Hangzhou, China
| | - Xing-Hai Liu
- Institute of Pesticide, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, China
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