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Catalyst- and solvent-free coupling of 2-methyl quinazolinones and 3-(trifluoroacetyl)coumarins: An environmentally benign access of quinazolinone derivatives. JOURNAL OF SAUDI CHEMICAL SOCIETY 2023. [DOI: 10.1016/j.jscs.2023.101621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
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Lei ZW, Yao J, Liu H, Ma C, Yang W. Synthesis and Bioactivity of Novel Sulfonate Scaffold-Containing Pyrazolecarbamide Derivatives as Antifungal and Antiviral Agents. Front Chem 2022; 10:928842. [PMID: 35815220 PMCID: PMC9257181 DOI: 10.3389/fchem.2022.928842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Accepted: 05/13/2022] [Indexed: 12/02/2022] Open
Abstract
Novel pyrazolecarbamide derivatives bearing a sulfonate fragment were synthesized to identify potential antifungal and antiviral agents. All the structures of the key intermediates and target compounds were confirmed by nuclear magnetic resonance (NMR) and high-resolution mass spectrometry (HRMS). The single-crystal X-ray diffraction of the compound T22 showed that pyrazole carbamide is a sulfonate. The in vitro antifungal activities of the target compounds against Colletotrichum camelliae, Pestalotiopsis theae, Gibberella zeae, and Rhizoctonia solani were evaluated at 50 μg/ml. Among the four pathogens, the target compounds exhibited the highest antifungal activity against Rhizoctonia solani. The compound T24 (EC50 = 0.45 mg/L) had higher antifungal activity than the commercial fungicide hymexazol (EC50 = 10.49 mg/L) against R. solani, almost similar to bixafen (EC50 = 0.25 mg/L). Additionally, the target compounds exhibited protective effects in vivo against TMV. Thus, this study reveals that pyrazolecarbamide derivatives bearing a sulfonate fragment exhibit potential antifungal and antiviral activities.
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Affiliation(s)
- Zhi-Wei Lei
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, China
- Tea Research Institute, Guizhou Academy of Agricultural Sciences, Guiyang, China
- *Correspondence: Zhi-Wei Lei,
| | - Jianmei Yao
- Tea Research Institute, Guizhou Academy of Agricultural Sciences, Guiyang, China
| | - Huifang Liu
- Tea Research Institute, Guizhou Academy of Agricultural Sciences, Guiyang, China
| | - Chiyu Ma
- Tea Research Institute, Guizhou Academy of Agricultural Sciences, Guiyang, China
| | - Wen Yang
- Tea Research Institute, Guizhou Academy of Agricultural Sciences, Guiyang, China
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Xie D, Yang Z, Hu X, Wen Y. Synthesis, Antibacterial and Insecticidal Activities of Novel Capsaicin Derivatives Containing a Sulfonic Acid Esters Moiety. Front Chem 2022; 10:929050. [PMID: 35774861 PMCID: PMC9237473 DOI: 10.3389/fchem.2022.929050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Accepted: 05/09/2022] [Indexed: 11/13/2022] Open
Abstract
In order to develop an efficient and broad-spectrum bactericide, a series of novel capsaicin derivatives containing a sulfonic acid esters moiety was synthesized. The structure of these compounds were confirmed by nuclear magnetic resonance spectroscopy (NMR) and high-resolution mass spectrum (HRMS). The results of the bioactivities revealed that some target compounds exhibited remarkable antibacterial activity. Compound 3b exhibited the highest activities against Pseudomonas syringae pv. actinidiae (Psa), Xanthomonas oryzae pv. oryzae (Xoo), and Xanthomonas axonopodis pv. citri (Xac), and the values were 86, 54, and 92% at 50 μg/ml, respectively, which were higher than were for thiodiazole copper (87, 34, and 77%) and bismerthiazol (87, 37 and 75%). Although some compounds also showed certain activity against Spodoptera frugiperda, it was weaker than the positive controls monosultap and mulfoxaflor. Thus, the bioassay results recommend that these newly designed and synthesized scaffolds should be used as a bactericide lead compound rather than an insecticide lead compound.
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Affiliation(s)
- Dandan Xie
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, China
- *Correspondence: Dandan Xie,
| | - Zaiping Yang
- School of Biology and Engineering, Guizhou Medical University, Guiyang, China
| | - Xin Hu
- School of Biological Sciences, Guizhou Education University, Guiyang, China
| | - Yin Wen
- School of Biological Sciences, Guizhou Education University, Guiyang, China
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Xie D, Hu X, Ren X, Yang Z. Synthesis and Bioactivities of Novel Piperonylic Acid Derivatives Containing a Sulfonic Acid Ester Moiety. Front Chem 2022; 10:913003. [PMID: 35711958 PMCID: PMC9192962 DOI: 10.3389/fchem.2022.913003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Accepted: 04/19/2022] [Indexed: 12/03/2022] Open
Abstract
The crop loss caused by bacteria has increased year by year due to the lack of effective control agents. In order to develop efficient, broad-spectrum, and structurally simple agricultural bactericide, the structure of piperonylic acid was modified and a series of novel piperonylic acid derivatives containing a sulfonic acid ester moiety was synthesized. Bioassay results indicated the compounds exhibited significantly antibacterial activities. Among them, compound 41 exhibited excellent antibacterial activities against Pseudomonas syringae pv. Actinidiae (Psa), with inhibitory value 99 and 85% at 100 μg/ml and 50 μg/ml, respectively, which was higher than that of thiodiazole-copper (84 and 77%) and bismerthiazol (96 and 78%). In addition, some compounds also showed moderate insecticidal activity against Spodoptera frugiperda. The abovementioned results confirm the broadening of the application of piperonylic acid, with reliable support for the development of novel agrochemical bactericide.
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Affiliation(s)
- Dandan Xie
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang, China
- Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang, China
- *Correspondence: Dandan Xie,
| | - Xin Hu
- School of Biological Sciences, Guizhou Education University, Wudang District, Guiyang, China
| | - Xiaoli Ren
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang, China
- Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang, China
| | - Zaiping Yang
- School of Biologi and Engineering, Guizhou Medical University, Huaxi District, Guiyang, China
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Shao Y, Tu M, Yang S, Wang Y, Sun B, Shi J, Tan C, Wang X. Synthesis, biological activity and toxicity to zebrafish of benzamides substituted with pyrazole-linked 1,2,4-oxadiazole. RSC Adv 2022; 12:23544-23551. [PMID: 36090432 PMCID: PMC9386446 DOI: 10.1039/d2ra04327k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Accepted: 07/30/2022] [Indexed: 11/24/2022] Open
Abstract
To find pesticidal lead compounds with high activity, a series of novel benzamides substituted with pyrazole-linked 1,2,4-oxadiazole was designed and synthesized by using the splicing principle of active substructures. The chemical structures of the target compounds were confirmed by 1H NMR, 13C NMR and HRMS. The preliminary bioassay showed that most compounds displayed good larvicidal activities against mosquito larvae at 10 mg L−1. In particular, compound 12g exhibited obvious activity; its lethal rate reached up to 100% (at 5 mg L−1) and 55% (at only 2 mg L−1). Furthermore, compound 12f (70.6%) and 12h (100%) showed good fungicidal activities against Pyricularia oryzae, with EC50 values of 8.28 and 5.49 μg mL−1, respectively, which were superior to that of the control drug bixafen (9.15 μg mL−1). Finally, the LC50 of compound 12h to zebrafish embryo was 0.39 mg L−1, so it was classified as a high-toxic compound. Thus, this compound may be used as a potential lead compound for further structural optimisation to develop new compounds with high activity and low toxicity. A series of novel benzamides substituted with pyrazole-linked 1,2,4-oxadiazole was designed and synthesized by using the splicing principle of active substructures.![]()
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Affiliation(s)
- Yingying Shao
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Minting Tu
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Sen Yang
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Yingying Wang
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Binlong Sun
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Jianjun Shi
- School of Chemistry and Chemical Engineering, Huangshan University, Huangshan 245041, China
| | - Chengxia Tan
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Xuedong Wang
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
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