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Cai Q, Song H, Zhang Y, Zhu Z, Zhang J, Chen J. Quinoline Derivatives in Discovery and Development of Pesticides. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:12373-12386. [PMID: 38775264 DOI: 10.1021/acs.jafc.4c01582] [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: 06/06/2024]
Abstract
Finding highly active molecular scaffold structures is always the key research content of new pesticide discovery. In the research and development of new pesticides, the discovery of new agricultural molecular scaffold structures and new targets still faces great challenges. In recent years, quinoline derivatives have developed rapidly in the discovery of new agriculturally active molecules, especially in the discovery of fungicides. The unique quinoline scaffold has many advantages in the discovery of new pesticides and can provide innovative and feasible solutions for the discovery of new pesticides. Therefore, we reviewed the use of quinoline derivatives and their analogues as molecular scaffolds in the discovery of new pesticides since 2000. We systematically summarized the agricultural biological activity of quinoline compounds and discussed the structure-activity relationship (SAR), physiological and biochemical properties, and mechanism of action of the active compounds, hoping to provide ideas and inspiration for the discovery of new pesticides.
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Affiliation(s)
- Qingfeng Cai
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, People's Republic of China
| | - Hongyi Song
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, People's Republic of China
| | - Yong Zhang
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, People's Republic of China
| | - Zongnan Zhu
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, People's Republic of China
| | - Jian Zhang
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, People's Republic of China
| | - Jixiang Chen
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, People's Republic of China
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2
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Wei Q, Zhai X, Song W, Li Z, Pan Y, Li B, Jiao Z, Shi Z, Yu J. Metabolomics analysis of the effects of chelerythrine on Ustilaginoidea virens. JOURNAL OF PESTICIDE SCIENCE 2024; 49:104-113. [PMID: 38882710 PMCID: PMC11176050 DOI: 10.1584/jpestics.d23-065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Accepted: 04/16/2024] [Indexed: 06/18/2024]
Abstract
Rice false smut (RFS) caused by Ustilaginoidea virens is widely distributed in major rice-producing regions. Previous studies have shown that treating RFS with chelerythrine can decrease the germination of fungus spores by 86.7% and induce fungal cell apoptosis. In the present study, the effects of chelerythrine on the metabolism of U. virens explored using metabolomics and analyses of differentially accumulated metabolites and altered metabolic pathways. The top 15 metabolites in random forest analysis were significantly different between groups. In positive ion mode, purine, phenylalanine metabolism, phenylalanine, tyrosine, tryptophan biosynthesis, pyrimidine metabolism, and nitrogen metabolism were dominant. Alanine, aspartate, glutamate metabolism, and phenylalanine metabolism were enriched in negative ion mode. Differentially expressed genes and altered metabolic pathways of U. virens were effected by chelerythrine. The findings support future research on the prevention and treatment of RFS by chelerythrine and provide a theoretical basis for targeted drug delivery.
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Affiliation(s)
- Qinghui Wei
- Institute of Plant Protection, Heilongjiang Academy of Agricultural Sciences
| | - Xihai Zhai
- Institute of Plant Protection, Heilongjiang Academy of Agricultural Sciences
| | - Weifeng Song
- Institute of Plant Protection, Heilongjiang Academy of Agricultural Sciences
| | - Zhiyong Li
- Institute of Plant Protection, Heilongjiang Academy of Agricultural Sciences
| | - Yaqing Pan
- Institute of Plant Protection, Heilongjiang Academy of Agricultural Sciences
| | - Baoying Li
- Institute of Plant Protection, Heilongjiang Academy of Agricultural Sciences
| | - Zhanli Jiao
- Institute of Plant Protection, Heilongjiang Academy of Agricultural Sciences
| | - Zhenghao Shi
- Institute of Plant Protection, Heilongjiang Academy of Agricultural Sciences
| | - Jiangtao Yu
- Yongyuan Town People's Government of Daowai District
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3
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Cui T, Ge L, Zhao M, Luo L, Long X. Amide Modification of Glycolipid Biosurfactants as Promising Biocompatible Antibacterial Agents. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:6302-6314. [PMID: 38483152 DOI: 10.1021/acs.jafc.3c08765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/28/2024]
Abstract
Discovering new antibacterial agents is crucial to addressing the increasing risk of bacterial infections induced by antimicrobial resistance in food and agricultural industries. Here, biocompatible acidic-type sophorolipids (ASLs) and glucolipids (GLs) prepared via chemical modification of natural sophorolipids from fermentation were functionalized via amide modification for use as potential antibacterial agents. It was found that the arginine methyl ester derivative of GLs (GLs-d-Arg-OMe) showed excellent antibacterial activity, killing more than 99.99% of Escherichia coli at 200 mg/L. The sterilization dosage of the GLs against Bacillus subtilis, Bacillus cereus, and Staphylococcus aureus was 16-64 mg/L, in contrast to 32-64 mg/L for the fungus Candida albicans. In particular, GLs-d-Arg-OMe showed the best biocompatibility with a therapeutic index of up to 18. It was shown that amide modification of glycolipids can effectively improve antibacterial activity while maintaining biocompatibility, which can be exploited for the development of novel antibiotics in food and agricultural fields.
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Affiliation(s)
- Tianyou Cui
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, P. R. China
| | - Lianpeng Ge
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, P. R. China
| | - Mengqian Zhao
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, P. R. China
| | - Li Luo
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, P. R. China
| | - Xuwei Long
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, P. R. China
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4
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Jian JY, Fan YM, Jin J, He XY, Yi P, Yuan CM, Gu W, Hu ZX, Huang LJ, Hao XJ. Isolating Antipathogenic Fungal Coumarins from Coriaria nepalensis and Determining Their Primary Mechanism In Vitro. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:6711-6722. [PMID: 38491973 DOI: 10.1021/acs.jafc.3c08573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/18/2024]
Abstract
Through bioassay-guided isolation, eight undescribed coumarins (1-8), along with six reported coumarins (9-14), were obtained from Coriaria nepalensis. The new structures were determined by using IR, UV, NMR, HRESIMS, and ECD calculations. The results of the biological activity assays showed that compound 9 exhibited broad spectrum antifungal activities against all tested fungi in vitro and a significant inhibitory effect on Phytophthora nicotianae with an EC50 value of 3.00 μg/mL. Notably, compound 9 demonstrated greater curative and protective effects against tobacco balack shank than those of osthol in vivo. Thus, 9 was structurally modified to obtain new promising antifungal agents, and the novel derivatives (17b, 17j, and 17k) exhibited better effects on Sclerotinia sclerotiorum than did lead compound 9. Preliminary mechanistic exploration illustrated that 9 could enhance cell membrane permeability, destroy the morphology and ultrastructure of cells, and reduce the exopolysaccharide content of P. nicotianae mycelia. Furthermore, the cytotoxicity results revealed that compound 9 exhibited relatively low cytotoxicity against HEK293 cell lines with an inhibition rate of 33.54% at 30 μg/mL. This research is promising for the discovery of new fungicides from natural coumarins with satisfactory ecological compatibility.
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Affiliation(s)
- Jun-You Jian
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang, Guiyang 550025, PR China
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, PR China
- Natural Products Research Center of Guizhou Province, Guiyang 550002, PR China
| | - Yi-Min Fan
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, PR China
- Natural Products Research Center of Guizhou Province, Guiyang 550002, PR China
| | - Jun Jin
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, PR China
- Natural Products Research Center of Guizhou Province, Guiyang 550002, PR China
| | - Xi-Yue He
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, PR China
- Natural Products Research Center of Guizhou Province, Guiyang 550002, PR China
| | - Ping Yi
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, PR China
- Natural Products Research Center of Guizhou Province, Guiyang 550002, PR China
| | - Chun-Mao Yuan
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, PR China
- Natural Products Research Center of Guizhou Province, Guiyang 550002, PR China
| | - Wei Gu
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, PR China
- Natural Products Research Center of Guizhou Province, Guiyang 550002, PR China
| | - Zhan-Xing Hu
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, PR China
- Natural Products Research Center of Guizhou Province, Guiyang 550002, PR China
| | - Lie-Jun Huang
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, PR China
- Natural Products Research Center of Guizhou Province, Guiyang 550002, PR China
| | - Xiao-Jiang Hao
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, PR China
- Natural Products Research Center of Guizhou Province, Guiyang 550002, PR China
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Science, Kunming 650201, PR China
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5
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Ma LJ, Liu X, Guo L, Luo Y, Zhang B, Cui X, Yang K, Cai J, Liu F, Ma N, Yang FQ, He X, Shi SP, Wan JB. Discovery of plant chemical defence mediated by a two-component system involving β-glucosidase in Panax species. Nat Commun 2024; 15:602. [PMID: 38238334 PMCID: PMC10796634 DOI: 10.1038/s41467-024-44854-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 01/07/2024] [Indexed: 01/22/2024] Open
Abstract
Plants usually produce defence metabolites in non-active forms to minimize the risk of harm to themselves and spatiotemporally activate these defence metabolites upon pathogen attack. This so-called two-component system plays a decisive role in the chemical defence of various plants. Here, we discovered that Panax notoginseng, a valuable medicinal plant, has evolved a two-component chemical defence system composed of a chloroplast-localized β-glucosidase, denominated PnGH1, and its substrates 20(S)-protopanaxadiol ginsenosides. The β-glucosidase and its substrates are spatially separated in cells under physiological conditions, and ginsenoside hydrolysis is therefore activated only upon chloroplast disruption, which is caused by the induced exoenzymes of pathogenic fungi upon exposure to plant leaves. This activation of PnGH1-mediated hydrolysis results in the production of a series of less-polar ginsenosides by selective hydrolysis of an outer glucose at the C-3 site, with a broader spectrum and more potent antifungal activity in vitro and in vivo than the precursor molecules. Furthermore, such β-glucosidase-mediated hydrolysis upon fungal infection was also found in the congeneric species P. quinquefolium and P. ginseng. Our findings reveal a two-component chemical defence system in Panax species and offer insights for developing botanical pesticides for disease management in Panax species.
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Affiliation(s)
- Li-Juan Ma
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China
| | - Xiao Liu
- Modern Research Center for Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Liwei Guo
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, Yunnan, China
| | - Yuan Luo
- Modern Research Center for Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Beibei Zhang
- Modern Research Center for Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, 100050, Beijing, China
| | - Xiaoxue Cui
- Modern Research Center for Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Kuan Yang
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, Yunnan, China
| | - Jing Cai
- School of Ecology and Environment, Northwestern Polytechnical University, Xi'an, Shaanxi, China
| | - Fang Liu
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China
| | - Ni Ma
- Department of Product Development, Wenshan Sanqi Institute of Science and Technology, Wenshan University, Wenshan, Yunnan, China
| | - Feng-Qing Yang
- Department of Pharmaceutical Engineering, School of Chemistry and Chemical Engineering, Chongqing University, 401331, Chongqing, China
| | - Xiahong He
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, Yunnan, China.
- Ministry of Education Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Southwest Forestry University, 650224, Kunming, Yunnan, China.
| | - She-Po Shi
- Modern Research Center for Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China.
| | - Jian-Bo Wan
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China.
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Wang XN, Wang ZJ, Zhao Y, Wang H, Xiang ML, Liu YY, Zhao LX, Luo XD. Antifungal alkaloids from Mahonia fortunei against pathogens of postharvest fruit. NATURAL PRODUCTS AND BIOPROSPECTING 2023; 13:10. [PMID: 37012512 PMCID: PMC10070590 DOI: 10.1007/s13659-023-00374-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Accepted: 03/18/2023] [Indexed: 06/19/2023]
Abstract
Postharvest pathogens can affect a wide range of fresh fruit and vegetables, including grapes, resulting in significant profit loss. Isoquinoline alkaloids of Mahonia fortunei, a Chinese herbal medicine, have been used to treat infectious microbes, which might be effective against postharvest pathogens. The phytochemical and bioactive investigation of this plant led to the isolation of 18 alkaloids, of which 9 compounds inhibited the growth of Botrytis cinerea and 4 compounds against Penicillium italicum. The antifungal alkaloids could change the mycelium morphology, the total lipid content, and leak the cell contents of B. cinerea. Furthermore, the two most potent antifungal alkaloids, berberine (13) completely inhibited effect on gray mold of table grape at 512 mg L-1, while jatrorrhizine (18) exhibited an inhibition rate > 90% on grape rot at the same concentration, with lower cytotoxicity and residue than chlorothalonil, which suggested that ingredients of M. fortunei might be a low-toxicity, low-residue, eco-friendly botanical fungicide against postharvest pathogens.
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Affiliation(s)
- Xiao-Na Wang
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, Yunnan Characteristic Plant Extraction Laboratory, School of Chemical Science and Technology, Yunnan University, Kunming, 650500, People's Republic of China
| | - Zhao-Jie Wang
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, Yunnan Characteristic Plant Extraction Laboratory, School of Chemical Science and Technology, Yunnan University, Kunming, 650500, People's Republic of China
| | - Yun Zhao
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences Kunming, Kunming, 650201, People's Republic of China
| | - Huan Wang
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, Yunnan Characteristic Plant Extraction Laboratory, School of Chemical Science and Technology, Yunnan University, Kunming, 650500, People's Republic of China
| | - Mei-Ling Xiang
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, Yunnan Characteristic Plant Extraction Laboratory, School of Chemical Science and Technology, Yunnan University, Kunming, 650500, People's Republic of China
| | - Yang-Yang Liu
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, Yunnan Characteristic Plant Extraction Laboratory, School of Chemical Science and Technology, Yunnan University, Kunming, 650500, People's Republic of China
| | - Li-Xing Zhao
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, Yunnan Characteristic Plant Extraction Laboratory, School of Chemical Science and Technology, Yunnan University, Kunming, 650500, People's Republic of China.
| | - Xiao-Dong Luo
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, Yunnan Characteristic Plant Extraction Laboratory, School of Chemical Science and Technology, Yunnan University, Kunming, 650500, People's Republic of China.
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences Kunming, Kunming, 650201, People's Republic of China.
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7
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Dong J, Li K, Hong Z, Chen L, Tang L, Han L, Chen L, Fan Z. Design, synthesis and fungicidal evaluation of novel psoralen derivatives containing sulfonohydrazide or acylthiourea moiety. Mol Divers 2022; 27:571-588. [PMID: 35666432 PMCID: PMC9167667 DOI: 10.1007/s11030-022-10402-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 02/06/2022] [Indexed: 11/14/2022]
Abstract
To search a novel lead structure for antiphytopathogenic fungus agent, a series of novel psoralen derivatives possessing sulfonohydrazide or acylthiourea structure were designed and synthesized, and their fungicidal activity against seven phytopathogens was evaluated. Their structures were confirmed by melting points, 1H NMR, 13C NMR and HRMS, and the typical crystal structure was determined by X-ray diffraction for validation. Preliminary fungicidal activity showed that some of the title compounds exhibited certain-to-high fungicidal activity. Compound I-13 exhibited good fungicidal activity against Botrytis cinerea, Cercospora arachidicola and Physalospora piricola with EC50 values of 12.49, 13.22 and 12.12 μg/mL, respectively. Compounds II-9 and II-15 showed over 90% inhibition against B. cinerea at 50 μg/mL in vitro. In particular, II-9 exhibited significant higher fungicidal activity with a lower EC50 value of 9.09 μg/mL than the positive control YZK-C22 (13.41 μg/mL). Our studies found that sulfonohydrazide or acylthiourea-containing psoralen derivatives were promising fungicide leads deserve for further study.
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Affiliation(s)
- Jingyue Dong
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, No. 94, Weijin Road, Nankai District, Tianjin, 300071, People's Republic of China.,Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin, 300071, People's Republic of China
| | - Kun Li
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, No. 94, Weijin Road, Nankai District, Tianjin, 300071, People's Republic of China.,Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin, 300071, People's Republic of China
| | - Zeyu Hong
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, No. 94, Weijin Road, Nankai District, Tianjin, 300071, People's Republic of China.,Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin, 300071, People's Republic of China
| | - Lei Chen
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, No. 94, Weijin Road, Nankai District, Tianjin, 300071, People's Republic of China.,Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin, 300071, People's Republic of China
| | - Liangfu Tang
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, No. 94, Weijin Road, Nankai District, Tianjin, 300071, People's Republic of China.,Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin, 300071, People's Republic of China
| | - Lijun Han
- College of Science, China Agricultural University, Beijing, 100193, People's Republic of China.
| | - Lai Chen
- College of Plant Protection, Hebei Agricultural University, Baoding, 071001, People's Republic of China.
| | - Zhijin Fan
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, No. 94, Weijin Road, Nankai District, Tianjin, 300071, People's Republic of China. .,Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin, 300071, People's Republic of China.
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Chen W, Zhang R, Chen Y, Yu P, Lan Y, Xu H, Lei S. Design, synthesis and mechanism study of novel natural-derived isoquinoline derivatives as antifungal agents. Mol Divers 2022:10.1007/s11030-022-10463-z. [PMID: 35661315 DOI: 10.1007/s11030-022-10463-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Accepted: 05/14/2022] [Indexed: 11/28/2022]
Abstract
In screening for natural fungicidal leads, two series of novel 3-aryl-isoquinoline derivatives 8 and 9 were designed and synthesized based on sanguinarine, chelerythrine and berberine. Their structures were confirmed by 1D, 2D NMR and HRMS. Most of the title compounds showed medium to excellent antifungal activity in vitro at 50 mg/L, which were much more active than the lead of sanguinarine. Especially, 9f possessed the best effective against Alternaria solani (80.4%), Alternaria alternata (88.2%) and Physalospora piricola (93.8%). Furthermore, the EC50 of 9f (3.651 mg/L) against P. piricola was marginally better than chlorothalonil (3.869 mg/L). In vivo antifungal activity of 9f against P. piricola was studied on apples. The curative and protection results at the dosage of 50 and 100 mg/L showed as 70.45 ~ 81.67% and 64.96 ~ 80.34%, respectively, which were equal to that of chlorothalonil (80.30 ~ 86.67%, 73.08 ~ 76.92%). Molecular electrostatic potential and molecular docking analysis revealed that 9f was fully covered by positive potential contour, which was easier to interact with the negative amino acid resides of succinate dehydrogenase than 8f. 9f could be used as a novel antifungal lead compound for further study. Two series of novel isoquinoline derivatives 8, 9 containing 3-aryl were rational designed and synthesized based on quaternary isoquinoline alkaloids. The bioassay and interaction mechanism studies indicated that 9f should be considered as potential antifungal lead.
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Affiliation(s)
- Wei Chen
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, China.
| | - Rui Zhang
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, China
| | - Yang Chen
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, China
| | - Pingbing Yu
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, China
| | - Yuxin Lan
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, China
| | - Haojian Xu
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, China
| | - Simin Lei
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, China
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9
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Yang SS, Lv QY, Fu J, Zhang TY, Du YS, Yang XJ, Zhou L. New 7-Chloro-9-methyl-2-phenyl-3,4-dihydro-β-carbolin-2-iums as Promising Fungicide Candidates: Design, Synthesis, and Bioactivity. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:4256-4266. [PMID: 35362951 DOI: 10.1021/acs.jafc.1c07278] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
As our further research, a series of new 7-chloro-9-methyl-2-phenyl-3,4-dihydro-β-carbolin-2-iums were designed and synthesized. Twelve compounds were found with excellent inhibition activity in vitro on three to five out of six phytopathogenic fungi, superior to standard drugs thiabendazole and/or azoxystrobin. Especially, 18 displayed the highest activity against three out of the fungi and the highest comprehensive activity for all of the fungi. The test in vivo revealed that 18 at 50 μg/mL was able to completely control Physalospora piricola infections in apples over 8 days. Scanning/transmission electron microscopic observations found that 18 could damage the hyphal integrity and cell membrane structure of P. piricola. The safety evaluation showed that 18 had no effect on the germination rate of cowpea seed at ≤200 μg/mL. The SAR revealed that the combination of 7-Cl and 2'- or 4'-alkyl is conducive to improvement of the activity. Thus, 7-chloro-9-methyl-2-phenyl-3,4-dihydro-β-carbolin-2-ium is a promising antifungal lead scaffold.
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Affiliation(s)
- Shan-Shan Yang
- College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling, Xianyang 712100, Shaanxi, China
| | - Qing-Yun Lv
- College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling, Xianyang 712100, Shaanxi, China
| | - Juan Fu
- College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling, Xianyang 712100, Shaanxi, China
| | - Tian-Yi Zhang
- College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling, Xianyang 712100, Shaanxi, China
| | - Yi-Si Du
- College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling, Xianyang 712100, Shaanxi, China
| | - Xin-Juan Yang
- College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling, Xianyang 712100, Shaanxi, China
| | - Le Zhou
- College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling, Xianyang 712100, Shaanxi, China
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10
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Yang L, Liu Q, Liu H, Chen D, Li H, Chen Z, Xu W. Synthesis and antimicrobial bioassays of 1,3,4-thiadiazole sulfone derivatives containing amide moiety: A study based on molecular dynamics (MD) simulations, MM/GBSA, and molecular docking. JOURNAL OF SAUDI CHEMICAL SOCIETY 2022. [DOI: 10.1016/j.jscs.2021.101415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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11
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An Update of the Sanguinarine and Benzophenanthridine Alkaloids’ Biosynthesis and Their Applications. Molecules 2022; 27:molecules27041378. [PMID: 35209167 PMCID: PMC8876366 DOI: 10.3390/molecules27041378] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 02/11/2022] [Accepted: 02/11/2022] [Indexed: 12/27/2022] Open
Abstract
Benzophenanthridines belong to the benzylisoquinolic alkaloids, representing one of the main groups of this class. These alkaloids include over 120 different compounds, mostly in plants from the Fumariaceae, Papaveraceae, and Rutaceae families, which confer chemical protection against pathogens and herbivores. Industrial uses of BZD include the production of environmentally friendly agrochemicals and livestock food supplements. However, although mainly considered toxic compounds, plants bearing them have been used in traditional medicine and their medical applications as antimicrobials, antiprotozoals, and cytotoxic agents have been envisioned. The biosynthetic pathways for some BZD have been established in different species, allowing for the isolation of the genes and enzymes involved. This knowledge has resulted in a better understanding of the process controlling their synthesis and an opening of the gates towards their exploitation by applying modern biotechnological approaches, such as synthetic biology. This review presents the new advances on BDZ biosynthesis and physiological roles. Industrial applications, mainly with pharmacological approaches, are also revised.
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12
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Seen SB, Gong Y, Ashton M. The application of the Fischer indole synthesis in medicinal chemistry. ADVANCES IN HETEROCYCLIC CHEMISTRY 2022. [DOI: 10.1016/bs.aihch.2022.11.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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13
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Li H, He YH, Hu YM, Chu QR, Chen YJ, Wu ZR, Zhang ZJ, Liu YQ, Yang CJ, Liang HJ, Yan YF. Design, Synthesis, and Structure-Activity Relationship Studies of Magnolol Derivatives as Antifungal Agents. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:11781-11793. [PMID: 34582205 DOI: 10.1021/acs.jafc.1c01838] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Plant pathogenic fungi seriously affect agricultural production and are difficult to control. The discovery of new leads based on natural products is an important way to innovate fungicides. In this study, 30 natural-product-based magnolol derivatives were synthesized and characterized on the basis of NMR and mass spectroscopy. Bioactivity tests on phytopathogenic fungi (Rhizoctonia solani, Fusarium graminearum, Botrytis cinerea, and Sclerotinia sclerotiorum) in vitro of these compounds were performed systematically. The results showed that 11 compounds were active against four kinds of phytopathogenic fungi with EC50 values in the range of 1.40-20.00 μg/mL, especially compound L5 that exhibited excellent antifungal properties against B. cinerea with an EC50 value of 2.86 μg/mL, approximately 2.8-fold more potent than magnolol (EC50 = 8.13 μg/mL). Moreover, compound L6 showed the highest antifungal activity against F. graminearum and Rhophitulus solani with EC50 values of 4.39 and 1.40 μg/mL, respectively, and compound L7 showed good antifungal activity against S. sclerotiorum. Then, an in vivo experiment of compound L5 against B. cinerea was further investigated in vivo using infected tomatoes (curative effect, 50/200 and 36%/100 μg/mL). The physiological and biochemical studies illustrated that the primary action mechanism of compound L5 on B. cinerea might change the mycelium morphology, increase cell membrane permeability, and destroy the function of mitochondria. Furthermore, structure-activity relationship (SAR) studies revealed that hydroxyl groups play a key role in antifungal activity. To sum up, this study provides a reference for understanding the application of magnolol-based antifungal agents in crop protection.
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Affiliation(s)
- Hu Li
- School of Pharmacy, Lanzhou University, Lanzhou 730000, People's Republic of China
| | - Ying-Hui He
- School of Pharmacy, Lanzhou University, Lanzhou 730000, People's Republic of China
| | - Yong-Mei Hu
- School of Pharmacy, Lanzhou University, Lanzhou 730000, People's Republic of China
| | - Qing-Ru Chu
- School of Pharmacy, Lanzhou University, Lanzhou 730000, People's Republic of China
| | - Yong-Jia Chen
- School of Pharmacy, Lanzhou University, Lanzhou 730000, People's Republic of China
| | - Zhen-Rong Wu
- School of Pharmacy, Lanzhou University, Lanzhou 730000, People's Republic of China
| | - Zhi-Jun Zhang
- School of Pharmacy, Lanzhou University, Lanzhou 730000, People's Republic of China
| | - Ying-Qian Liu
- School of Pharmacy, Lanzhou University, Lanzhou 730000, People's Republic of China
| | - Cheng-Jie Yang
- School of Pharmacy, Lanzhou University, Lanzhou 730000, People's Republic of China
| | - Hong-Jie Liang
- School of Pharmacy, Lanzhou University, Lanzhou 730000, People's Republic of China
| | - Yin-Fang Yan
- School of Pharmacy, Lanzhou University, Lanzhou 730000, People's Republic of China
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14
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Tang Y, Jin M, Cui T, Hu Y, Long X. Efficient Preparation of Sophorolipids and Functionalization with Amino Acids to Furnish Potent Preservatives. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:9608-9615. [PMID: 34387482 DOI: 10.1021/acs.jafc.1c03439] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The development of new preservatives is an ongoing investigation in the food industry, especially those which are safe and environmentally friendly. In this study, biosurfactant sophorolipids (SLs) functionalized with amino acids were developed as efficient preservative agents. SLs were first isolated from fermentation broth by Candida bombicola ATCC 22214, hydrolyzed, and purified by extraction. The typical recovery is around 70%, while the extracted material consists of over 90% deacetylated acidic SLs (SL-COOH). Four types of SL derivatives were then synthesized via dicyclohexylcarbodiimide amidation reactions from prepared SL-COOH. Among the derivatives produced, the arginine SL conjugates (SL-d-Arg) displayed the highest activity against Gram-positive bacteria and fungi and even inhibited the cell growth of Gram-negative bacteria and mildew. Furthermore, the arginine conjugates performed the broadest antimicrobial activity among the derivatives evaluated. The sterilization dosage of the arginine conjugates against the food-spoilage pathogen Bacillus spp. was 63-125 mg/L, in contrast to 250 mg/L for the enterotoxin producer Staphylococcus aureus and 500 mg/L for fungi. More importantly, SL-d-Arg displayed excellent biocompatibility, with a therapeutic index of over 7.94. SL-d-Arg has excellent potential as an alternative to traditional chemical preservatives.
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Affiliation(s)
- Yujing Tang
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, PR China
| | - Mingjie Jin
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, PR China
| | - Tianyou Cui
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, PR China
| | - Yang Hu
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, PR China
| | - Xuwei Long
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, PR China
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15
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Liu C, Xi X, Liu Y, Lu Y, Che F, Gu Y, Yu Y, Li H, Liu J, Wei Y. Isolation of Four Major Compounds of γ-Oryzanol from Rice Bran Oil by Ionic Liquids Modified High-Speed Countercurrent Chromatography and Antimicrobial Activity and Neuroprotective Effect of Cycloartenyl Ferulate In Vitro. Chromatographia 2021. [DOI: 10.1007/s10337-021-04044-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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16
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Cui ZM, Zhou BH, Fu C, Chen L, Fu J, Cao FJ, Yang XJ, Zhou L. Simple Analogues of Quaternary Benzo[ c]phenanthridine Alkaloids: Discovery of a Novel Antifungal 2-Phenylphthalazin-2-ium Scaffold with Excellent Potency against Phytopathogenic Fungi. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:15418-15427. [PMID: 33332120 DOI: 10.1021/acs.jafc.0c06507] [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] [Indexed: 06/12/2023]
Abstract
Inspired by sanguinarine and chelerythrine, a novel antifungal 2-phenylphthalazin-2-ium scaffold as a simple analogue was designed. Most of the 30 compounds showed excellent inhibition activity against almost all eight phytopathogenic fungi, far superior to sanguinarine and chelerythrine. A third of the compounds were more active than azoxystrobin in most cases. Compounds 26 and 27 showed the highest total activity against all the fungi with EC50 means of ca. 4.6 μg/mL. Fusarium solani showed the highest susceptibility with an EC50 mean of 3.62 μg/mL to 19 compounds. A concentration of 25.0 μg/mL 27 can fully control the Colletotrichum gloeosporioides infection in apples over 9 days. Electron microscopic observations showed that 27 was able to damage the structures of the hypha and cell membrane. The structure-activity relationship showed that the presence of electron-withdrawing groups on the C-ring increases the activity against most of the fungi. Thus, 2-phenylphthalazin-2-ium compounds represent promising leads for the development of novel fungicides.
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Affiliation(s)
- Zhi-Ming Cui
- College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling, Yangling 712100, Shaanxi, China
| | - Bo-Hang Zhou
- College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling, Yangling 712100, Shaanxi, China
| | - Chao Fu
- College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling, Yangling 712100, Shaanxi, China
| | - Liu Chen
- College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling, Yangling 712100, Shaanxi, China
| | - Juan Fu
- College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling, Yangling 712100, Shaanxi, China
| | - Fang-Jun Cao
- Shaanxi Institute of Zoology, No. 88 Xingqing Road, Xi'an 710032, China
| | - Xin-Juan Yang
- College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling, Yangling 712100, Shaanxi, China
| | - Le Zhou
- College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling, Yangling 712100, Shaanxi, China
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17
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Yin XD, Ma KY, Wang YL, Sun Y, Shang XF, Zhao ZM, Wang RX, Chen YJ, Zhu JK, Liu YQ. Design, Synthesis, and Antifungal Evaluation of 8-Hydroxyquinoline Metal Complexes against Phytopathogenic Fungi. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:11096-11104. [PMID: 32941027 DOI: 10.1021/acs.jafc.0c01322] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Phytopathogenic fungal infections have become a major threat to agricultural production, food security, and human health globally, and novel antifungal agents with simple chemical scaffolds and high efficiency are needed. In this study, we designed and synthesized 38 8-hydroxyquinoline metal complexes and evaluated their antifungal activities. The results showed that most of the tested compounds possessed remarkable in vitro antifungal activity. Especially, compound 1e exhibited the highest antifungal potency among all target compounds, with EC50 values of 0.0940, 0.125, 2.95, and 5.96 μg/mL, respectively, against Sclerotinia sclerotiorum, Botrytis cinerea, Fusarium graminearum, and Magnaporthe oryzae. Preliminary mechanistic studies had shown that compound 1e might cause mycelial abnormalities of S. sclerotiorum, cell membrane permeability changes, leakage of cell contents, and inhibition of sclerotia formation and germination. Moreover, the results of in vivo antifungal activity of compound 1e against S. sclerotiorum showed that 1e possessed higher curative effects than that of the positive control azoxystrobin. Therefore, compound 1e is expected to be a novel leading structure for the development of new antifungal agents.
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Affiliation(s)
- Xiao-Dan Yin
- School of Pharmacy, Lanzhou University, Lanzhou 730000, People's Republic of China
| | - Kun-Yuan Ma
- School of Pharmacy, Lanzhou University, Lanzhou 730000, People's Republic of China
| | - Yu-Ling Wang
- Gansu Academy of Agricultural Sciences, Lanzhou 730000, People's Republic of China
| | - Yu Sun
- School of Pharmacy, Lanzhou University, Lanzhou 730000, People's Republic of China
| | - Xiao-Fei Shang
- Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, 335 Jiangouyan, Lanzhou 730050, People's Republic of China
| | - Zhong-Min Zhao
- School of Pharmacy, Lanzhou University, Lanzhou 730000, People's Republic of China
| | - Ren-Xuan Wang
- School of Pharmacy, Lanzhou University, Lanzhou 730000, People's Republic of China
| | - Yong-Jia Chen
- School of Pharmacy, Lanzhou University, Lanzhou 730000, People's Republic of China
| | - Jia-Kai Zhu
- School of Pharmacy, Lanzhou University, Lanzhou 730000, People's Republic of China
| | - Ying-Qian Liu
- School of Pharmacy, Lanzhou University, Lanzhou 730000, People's Republic of China
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18
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Wu W, Chen M, Fei Q, Ge Y, Zhu Y, Chen H, Yang M, Ouyang G. Synthesis and Bioactivities Study of Novel Pyridylpyrazol Amide Derivatives Containing Pyrimidine Motifs. Front Chem 2020; 8:522. [PMID: 32850614 PMCID: PMC7411148 DOI: 10.3389/fchem.2020.00522] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Accepted: 05/21/2020] [Indexed: 11/29/2022] Open
Abstract
In this study, thirteen new pyridylpyrazolamide derivatives containing pyrimidine motifs were synthesized via six-step reactions. Bioassay results showed that some of the synthesized compounds revealed good antifungal properties against Sclerotinia sclerotiorum, Phytophthora infestans, Thanatephorus cucumeris, Gibberella zeae, Fusarium oxysporum, Cytospora mandshurica, Botryosphaeria dothidea, and Phompsis sp. at 50 μg/mL, which were similar to those of Kresoxim-methyl or Pyrimethanil. Meanwhile, bioassay results indicated that the synthesized compounds showed a certain insecticidal activity against Spodoptera litura, Mythimna separata, Pyrausta nubilalis, Tetranychus urticae, Rhopalosiphum maidis, and Nilaparvata lugens at 200 μg/mL, which was lower than that of Chlorantraniliprole. To the best of our knowledge, this study is the first report on the antifungal and insecticidal activities of pyridylpyrazol amide derivatives containing a pyrimidine moiety.
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Affiliation(s)
- Wenneng Wu
- Food and Pharmaceutical Engineering Institute, Guiyang University, Guiyang, China.,Center for Research and Development of Fine Chemicals, School of Pharmaceutical Sciences, Entomology of Institute, Guizhou University, Guiyang, China
| | - Meihang Chen
- Material and Chemistry Engineering Institute, Tongren College, Tongren, China
| | - Qiang Fei
- Food and Pharmaceutical Engineering Institute, Guiyang University, Guiyang, China
| | - Yonghui Ge
- Food and Pharmaceutical Engineering Institute, Guiyang University, Guiyang, China
| | - Yingying Zhu
- School of Chemical Engineering, Guizhou Institute of Technology, Guiyang, China
| | - Haijiang Chen
- Food and Pharmaceutical Engineering Institute, Guiyang University, Guiyang, China
| | - Maofa Yang
- Center for Research and Development of Fine Chemicals, School of Pharmaceutical Sciences, Entomology of Institute, Guizhou University, Guiyang, China
| | - Guiping Ouyang
- Center for Research and Development of Fine Chemicals, School of Pharmaceutical Sciences, Entomology of Institute, Guizhou University, Guiyang, China
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19
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Wei QH, Cui DZ, Liu XF, Chai YY, Zhao N, Wang JY, Zhao M. In vitro antifungal activity and possible mechanisms of action of chelerythrine. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2020; 164:140-148. [PMID: 32284120 DOI: 10.1016/j.pestbp.2020.01.007] [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: 11/07/2019] [Revised: 01/16/2020] [Accepted: 01/18/2020] [Indexed: 06/11/2023]
Abstract
Chelerythrine (CHE) possesses broad pharmacological activities. In this study, the extract of Chelidonium majus L. were characterized by high performance liquid chromatography (HPLC), infrared radiation (IR) spectroscopy and nuclear magnetic resonance (NMR). It was proved that the extract was CHE. The antifungal activity of CHE against five fungal pathogens of rice was researched in vitro, revealing that CHE inhibited Ustilaginoidea virens (U. virens) and Cochliobolus miyabeanus (C. miyabeanus) with 50% effective concentrations (EC50) of 6.53 × 10-3 mg/mL and 5.62 × 10-3 mg/mL, respectively. When the concentration of CHE was 7.5 × 10-3 mg/mL, the inhibition rate of U. virens reached 56.1%. Moreover, CHE (4 × 10-3 mg/mL) exhibited the greatest efficacy in inhibiting spore of U. virens growth with an inhibition rate as high as 86.7%. CHE displayed the best inhibitory activity against U. virens at the concentration of 7.5 × 10-3 mg/mL, compared with the other two isoquinoline alkaloids and commercial fungicide validamycin. After treating U. virens mycelia with CHE, twisted and atrophied mycelia were observed by optical microscopy. SEM results demonstrated narrow and locally fractured mycelium. TEM observations showed that the cell wall had become thin and broken, and most organelles were difficult to recognize. Furthermore, membrane of mycelia was destroyed and reactive oxygen species (ROS) of spores was accumulated, which induced apoptosis of pathogenic fungi. From these results, our understanding of the mechanisms of antifungal activity of CHE against U. virens was enriched and this research is relevant for developing novel pesticides.
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Affiliation(s)
- Qing-Hui Wei
- Northeast Forestry University, Harbin 150040, China
| | - Dai-Zong Cui
- Northeast Forestry University, Harbin 150040, China
| | - Xue-Feng Liu
- Northeast Forestry University, Harbin 150040, China
| | | | - Na Zhao
- Northeast Forestry University, Harbin 150040, China
| | - Jue-Yu Wang
- Northeast Forestry University, Harbin 150040, China
| | - Min Zhao
- Northeast Forestry University, Harbin 150040, China.
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20
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Design, synthesis and antifungal activity of amide and imine derivatives containing a kakuol moiety. Bioorg Med Chem Lett 2020; 30:126774. [DOI: 10.1016/j.bmcl.2019.126774] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2019] [Revised: 08/28/2019] [Accepted: 10/23/2019] [Indexed: 11/30/2022]
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21
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Sui G, Hao H, Zhou W, Ren L, Liu R, Xu D. Design, Synthesis and in vitro Antifungal Evaluation of Novel Triazole Derivatives. HETEROCYCLES 2020. [DOI: 10.3987/com-20-14247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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22
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Yang R, Du W, Yuan H, Qin T, He R, Ma Y, Du H. Synthesis and biological evaluation of 2-phenyl-4-aminoquinolines as potential antifungal agents. Mol Divers 2019; 24:1065-1075. [PMID: 31705363 DOI: 10.1007/s11030-019-10012-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Accepted: 11/02/2019] [Indexed: 12/14/2022]
Abstract
A series of 2-phenyl-4-aminoquinolines were designed, synthesized and evaluated for their antifungal activities against three phytopathogenic fungi in vitro. All of the target compounds were fully elucidated by 1H NMR, 13C NMR and HRMS spectra. The results indicated that most of the target compounds demonstrated significant activities against the tested fungi. Among them, compound 6e exhibited more promising inhibitory activities against C. lunata (EC50 = 13.3 μg/mL), P. grisea (EC50 = 14.4 μg/mL) and A. alternate (EC50 = 15.6 μg/mL), superior to azoxystrobin, a commercial agricultural fungicide. The structure-activity relationship (SAR) revealed that the aniline moiety at position 4 of the quinoline scaffold played a key role in the potency of a compound. And the substitution positions of the aniline moiety significantly influenced the activities. These encouraging results yielded a variety of 2-phenylquinolines bearing an aniline moiety acting as promising antifungal agents.
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Affiliation(s)
- Rui Yang
- College of Materials, Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu, 610059, People's Republic of China.
| | - Wenhao Du
- College of Materials, Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu, 610059, People's Republic of China
| | - Huan Yuan
- College of Materials, Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu, 610059, People's Republic of China
| | - Tianhong Qin
- College of Materials, Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu, 610059, People's Republic of China
| | - Renxiao He
- College of Materials, Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu, 610059, People's Republic of China
| | - Yanni Ma
- Key Laboratory of Natural Products, Henan Academy of Sciences, Zhengzhou, 450002, People's Republic of China
| | - Haiying Du
- College of Environment, Chengdu University of Technology, Chengdu, 610059, People's Republic of China.
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23
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Two new unsaturated fatty acids from the mangrove rhizosphere soil-derived fungus Penicillium javanicum HK1-22. Bioorg Chem 2019; 93:103331. [PMID: 31622851 DOI: 10.1016/j.bioorg.2019.103331] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Revised: 08/12/2019] [Accepted: 09/28/2019] [Indexed: 11/21/2022]
Abstract
Two new unsaturated fatty acids, 6R,8R-dihydroxy-9Z,12Z-octadecadienoic acid (1) and methyl-6R,8R-dihydroxy-9Z,12Z-octadecadienoate (2), and two known 9Z,12Z-octadecadienoic acid analogues (3, 4) together with a known sesquiterpenoid (5) were isolated from the mangrove rhizosphere soil-derived fungus Penicillium javanicum HK1-22. An acetonide derivative (1a) from 1 was also prepared. The relative configuration of 1 was determined by analysis of the 1D and 2D NOE spectra of 1a. The absolute configuration of 1 was assigned on the basis of biogenetic considerations. The antifungal activity of the high yield compound 5 was evaluated against four strains of crop pathogens and it showed significant antifungal activities against all the tested strains.
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24
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Zhao ZM, Shang XF, Lawoe RK, Liu YQ, Zhou R, Sun Y, Yan YF, Li JC, Yang GZ, Yang CJ. Anti-phytopathogenic activity and the possible mechanisms of action of isoquinoline alkaloid sanguinarine. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2019; 159:51-58. [PMID: 31400784 DOI: 10.1016/j.pestbp.2019.05.015] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Revised: 05/20/2019] [Accepted: 05/23/2019] [Indexed: 06/10/2023]
Abstract
Isoquinoline alkaloids possess broad pharmacological activities. In this study, the antifungal activity of twelve isoquinoline alkaloids, including berberine (1), jatrorrhizine (2), coptisine (3), corydaline (4), tetrahydroberberine (5), chelidonine (6), dihydrosanguinarine (7), chelerythrine (8), sanguinarine (9), palmatine (10), tetrahydropalmatine (11) and columbamine (12) were evaluated against eight plant pathogenic fungi in vitro. All the tested compounds showed varying degrees of inhibition against the eight tested plant fungi. Among them, sanguinarine exhibited high antifungal activity (EC50 ranging from 6.96-59.36 μg/mL). It displayed the best inhibitory activity against Magnaporthe oryzae (EC50 = 6.96 μg/mL), compared with azoxystrobin (EC50 = 12.04 μg/mL), and significantly suppressed spore germination of M. oryzae with the inhibition rate reaching 100% (50 μg/mL). The optical microscopy and scanning electron microscopy observations revealed that after treating M. oryzae mycelia with sanguinarine at 10 μg/mL, the mycelia appeared curved, collapsed and the cell membrane integrity was eventually damaged. Furthermore, the reactive oxygen species production, mitochondrial membrane potential and nuclear morphometry of mycelia had been changed, and the membrane function and cell proliferation of mycelia were destroyed. These results will enrich our insights into action mechanisms of antifungal activity of sanguinarine against M. oryzae.
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Affiliation(s)
- Zhong-Min Zhao
- School of Pharmacy, Lanzhou University, Lanzhou 730000, People's Republic of China
| | - Xiao-Fei Shang
- School of Pharmacy, Lanzhou University, Lanzhou 730000, People's Republic of China; Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730000, People's Republic of China
| | - Raymond Kobla Lawoe
- School of Pharmacy, Lanzhou University, Lanzhou 730000, People's Republic of China
| | - Ying-Qian Liu
- School of Pharmacy, Lanzhou University, Lanzhou 730000, People's Republic of China.
| | - Rui Zhou
- School of Pharmacy, Lanzhou University, Lanzhou 730000, People's Republic of China
| | - Yu Sun
- School of Pharmacy, Lanzhou University, Lanzhou 730000, People's Republic of China
| | - Yin-Fang Yan
- School of Pharmacy, Lanzhou University, Lanzhou 730000, People's Republic of China
| | - Jun-Cai Li
- School of Pharmacy, Lanzhou University, Lanzhou 730000, People's Republic of China
| | - Guan-Zhou Yang
- School of Pharmacy, Lanzhou University, Lanzhou 730000, People's Republic of China
| | - Cheng-Jie Yang
- School of Pharmacy, Lanzhou University, Lanzhou 730000, People's Republic of China
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25
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New Naphtho-γ-Pyrones Isolated from Marine-Derived Fungus Penicillium sp. HK1-22 and Their Antimicrobial Activities. Mar Drugs 2019; 17:md17060322. [PMID: 31159234 PMCID: PMC6627118 DOI: 10.3390/md17060322] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Revised: 05/23/2019] [Accepted: 05/27/2019] [Indexed: 12/31/2022] Open
Abstract
Three novel monomeric naphtho-γ-pyrones, peninaphones A–C (compounds 1–3), along with two known bis-naphtho-γ-pyrones (compounds 4 and 5) were isolated from mangrove rhizosphere soil-derived fungus Penicillium sp. HK1-22. The absolute configurations of compounds 1 and 2 were determined by electronic circular dichroism (ECD) spectra, and the structure of compound 3 was confirmed by single-crystal X-ray diffraction analysis. Compounds 4 and 5 are a pair of hindered rotation isomers. A hypothetical biosynthetic pathway for the isolated monomeric and dimeric naphtho-γ-pyrones is also discussed in this study. Compounds 1–3 showed antibacterial activity against Staphylococcus aureus (ATCC 43300, 33591, 29213, and 25923) with minimum inhibitory concentration (MIC) values in the range of 12.5–50 μg/mL. Compound 3 exhibited significant activity against the rice sheath blight pathogen Rhizoctonia solani.
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Li X, Zhang B, Zhao W, Yang S, Yang X, Zhou L. New 2-aryl-6-methyl-3,4-dihydro-β-carbolin-2-iums as potential antifungal agents: Synthesis, bioactivity and structure-activity relationship. Sci Rep 2019; 9:1941. [PMID: 30760841 PMCID: PMC6374477 DOI: 10.1038/s41598-018-38222-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Accepted: 12/20/2018] [Indexed: 12/31/2022] Open
Abstract
Thirty new title compounds along with five known analogues were prepared from commercially available 2-arylhydrazin-1-ium chlorides and α-ketoglutaric acid. The mycelium growth rate method was used to evaluate inhibition activity against six strains of plant pathogenic fungi. Most of the compounds displayed the activity for each the fungi at 150 μΜ, higher than azoxystrobin, a positive drug. Compound 6-2 showed the lowest average IC50 value of 4.58 μg/mL for all the fungi where F. solani exhibited the highest susceptibility to most of the compounds. For F. solani, some compounds were more active with IC50 values of 2.67-8.48 μM than thiabendazole (IC50 = 9.30 μM) and/or carbendazim (IC50 = 3.36 μM). The SAR showed that the activity is significantly affected by substituents on the A-ring and/or D-ring along with the degree of unsaturation of the C-ring. Thus, a series of new β-carboline compounds with potent antifungal potential were found.
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Affiliation(s)
- Xingqiang Li
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100, Shaanxi Province, People's Republic of China
| | - Bingyu Zhang
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100, Shaanxi Province, People's Republic of China
| | - Wei Zhao
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100, Shaanxi Province, People's Republic of China
| | - Shanshan Yang
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100, Shaanxi Province, People's Republic of China
| | - Xinjuan Yang
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100, Shaanxi Province, People's Republic of China.
| | - Le Zhou
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100, Shaanxi Province, People's Republic of China.
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Yin XD, Sun Y, Lawoe RK, Yang GZ, Liu YQ, Shang XF, Liu H, Yang YD, Zhu JK, Huang XL. Synthesis and anti-phytopathogenic activity of 8-hydroxyquinoline derivatives. RSC Adv 2019; 9:30087-30099. [PMID: 35530209 PMCID: PMC9072087 DOI: 10.1039/c9ra05712a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Accepted: 09/16/2019] [Indexed: 12/04/2022] Open
Abstract
Phytopathogenic fungi have become a serious threat to the quality of agricultural products, food security and human health globally, necessitating the need to discover new antifungal agents with de novo chemical scaffolds and high efficiency. A series of 8-hydroxyquinoline derivatives were designed and synthesized, and their antifungal activity was evaluated against five phytopathogenic fungi. In vitro assays revealed that most of the tested compounds remarkably impacted the five target fungi and their inhibitory activities were better than that of the positive control azoxystrobin. Compound 2, in particular, exhibited the highest potency among all the tested compounds, with an EC50 of 0.0021, 0.0016, 0.0124, 0.0059 and 0.0120 mM respectively against B. cinerea, S. sclerotiorum, F. graminearum, F. oxysporum and M. oryzae, followed by compound 5c. The morphological observations of optical microscopy and scanning electron microscopy revealed that compounds 2 and 5c caused mycelial abnormalities of S. sclerotiorum. Futhermore, the results of in vivo antifungal activity of compounds 2 and 5c against S. sclerotiorum showed that 5c possessed stronger protective and curative activity than that of 2, and the curative effects of 5c at 40 and 80 μg mL−1 (84.18% and 95.44%) were better than those of azoxystrobin (77.32% and 83.59%). Therefore, compounds 2 and 5c are expected to be novel lead structures for the development of new fungicides. Phytopathogenic fungi have become a serious threat to the quality of agricultural products, food security and human health globally, necessitating the need to discover new antifungal agents with de novo chemical scaffolds and high efficiency.![]()
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Affiliation(s)
- Xiao-Dan Yin
- School of Pharmacy
- Lanzhou University
- Lanzhou 730000
- People's Republic of China
| | - Yu Sun
- School of Pharmacy
- Lanzhou University
- Lanzhou 730000
- People's Republic of China
| | - Raymond Kobla Lawoe
- School of Pharmacy
- Lanzhou University
- Lanzhou 730000
- People's Republic of China
| | - Guan-Zhou Yang
- School of Pharmacy
- Lanzhou University
- Lanzhou 730000
- People's Republic of China
| | - Ying-Qian Liu
- School of Pharmacy
- Lanzhou University
- Lanzhou 730000
- People's Republic of China
| | - Xiao-Fei Shang
- School of Pharmacy
- Lanzhou University
- Lanzhou 730000
- People's Republic of China
- Lanzhou Institute of Husbandry and Pharmaceutical Sciences
| | - Hua Liu
- School of Pharmacy
- Lanzhou University
- Lanzhou 730000
- People's Republic of China
| | - Yu-Dong Yang
- School of Pharmacy
- Lanzhou University
- Lanzhou 730000
- People's Republic of China
| | - Jia-Kai Zhu
- School of Pharmacy
- Lanzhou University
- Lanzhou 730000
- People's Republic of China
| | - Xiao-Ling Huang
- School of Pharmacy
- Lanzhou University
- Lanzhou 730000
- People's Republic of China
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Cao FJ, Xu MX, Zhou BH, Du YS, Yao JH, Zhou L. Effects of 2-aryl-1-cyano-1,2,3,4-tetrohydroisoquinolines on apoptosis induction mechanism in NB4 and MKN-45 cells. Toxicol In Vitro 2018; 54:295-303. [PMID: 30342220 DOI: 10.1016/j.tiv.2018.10.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2018] [Revised: 09/18/2018] [Accepted: 10/16/2018] [Indexed: 02/06/2023]
Abstract
Our previous study found that 2-aryl-1-cyano-1,2,3,4-tetrahydroisoquinolines (CATHIQs) have excellent anti-cancer activity and obvious apoptosis induction phenomenon. As our continuing research, this study further explored their underlying molecular mechanism of apoptosis induction in cancer cells. Flow cytometry analysis showed that the NB4 cells treated by 1-cyano-2-(2-fluorophenyl)-1,2,3,4-tetrahydroisoquinoline or the MKN-45 cells treated by 1-cyano-2-(4-trifluoromethylphenyl)-1,2,3,4-tetrahydroisoquinoline for 48 h were at early stage of apoptosis, and the cell cycle arrest was only slightly affected. Apoptosis rates of the cells significantly increase with the treatment concentration of the compounds. The compounds could significantly decrease the activities of SOD, raise the MDA level and promote the LDH leakage, suggesting that the excessive formation of ROS should be involved in the cell apoptosis. Western blot analysis showed that the compounds improved both Bax/Bcl-2 ratio and cleavages of procaspase-3, promoted efflux of cytochrome c to cytosol and phosphorylation of p38 and JNK, and attenuated phosphorylations of Akt and ERK. Together, inhibitions of PI3K/Akt and ERK and activation of p38 mediated the compounds-induced apoptosis through modulating the mitochondrial pathway and/or ROS production.
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Affiliation(s)
- Fang-Jun Cao
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi 712100, China; College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Ming-Xuan Xu
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Bo-Hang Zhou
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yi-Si Du
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Jun-Hu Yao
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Le Zhou
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi 712100, China.
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Wu W, Chen M, Wang R, Tu H, Yang M, Ouyang G. Novel pyrimidine derivatives containing an amide moiety: design, synthesis, and antifungal activity. CHEMICAL PAPERS 2018. [DOI: 10.1007/s11696-018-0583-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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30
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Yu F, Guan A, Li M, Hu L, Li X. Design, synthesis, and fungicidal activity of novel 1,3,4-oxadiazole derivatives. CHINESE CHEM LETT 2018. [DOI: 10.1016/j.cclet.2018.01.050] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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31
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Ma Y, Fan C, Jia B, Cheng P, Liu J, Ma Y, Qiao K. Total synthesis and biological evaluation of spirotryprostatin A analogs. Chirality 2017; 29:737-746. [DOI: 10.1002/chir.22746] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Revised: 07/14/2017] [Accepted: 07/18/2017] [Indexed: 01/15/2023]
Affiliation(s)
- Yangmin Ma
- Key Laboratory of Auxiliary Chemistry & Technology for Chemical Industry, Ministry of Education; Shaanxi University of Science & Technology; Xi'an China
| | - Chao Fan
- Key Laboratory of Auxiliary Chemistry & Technology for Chemical Industry, Ministry of Education; Shaanxi University of Science & Technology; Xi'an China
| | - Bin Jia
- Key Laboratory of Auxiliary Chemistry & Technology for Chemical Industry, Ministry of Education; Shaanxi University of Science & Technology; Xi'an China
| | - Pei Cheng
- Key Laboratory of Auxiliary Chemistry & Technology for Chemical Industry, Ministry of Education; Shaanxi University of Science & Technology; Xi'an China
| | - Jia Liu
- Key Laboratory of Auxiliary Chemistry & Technology for Chemical Industry, Ministry of Education; Shaanxi University of Science & Technology; Xi'an China
| | - Yuqiang Ma
- Key Laboratory of Auxiliary Chemistry & Technology for Chemical Industry, Ministry of Education; Shaanxi University of Science & Technology; Xi'an China
| | - Ke Qiao
- Key Laboratory of Auxiliary Chemistry & Technology for Chemical Industry, Ministry of Education; Shaanxi University of Science & Technology; Xi'an China
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New 2-aryl-7,8-dimethoxy-3,4-dihydroisoquinolin-2-ium salts as potential antifungal agents: synthesis, bioactivity and structure-activity relationships. Sci Rep 2017; 7:7537. [PMID: 28790333 PMCID: PMC5548800 DOI: 10.1038/s41598-017-07303-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Accepted: 06/26/2017] [Indexed: 11/12/2022] Open
Abstract
The title compounds can be considered as simple analogues of quaternary benzo[c]phenanthridine alkaloids (QBAs). In order to develop potent QBA-like antifungal agents, as our continuing study, a series of new title compounds were synthesized and evaluated for bioactivity against five plant pathogenic fungi by the mycelium growth rate method in this study. The SAR were also derived. The majority of the compounds showed good to excellent inhibition activity with average EC50 values of 7.87–20.0 μM for the fungi, superior to sanguinarine and cherythrine (two QBAs) and the commercial fungicide azoxystrobin. Part of the compounds were more active than commercial fungicides thiabendazole or carbendazim against F. solani, F. graminearum and C. gloeosporioides. Six compounds with average EC50 of 3.5–5.1 μg/mL possessed very great potential for development of new antifungal agents. SAR found that substitution patterns of the two aryl-rings significantly affect the activity. There exists a complex interaction effect between substituents of the two aryl-rings on the activity. Generally, the presence of electron-withdrawing groups on the C-ring can significantly increase the activity. These findings will be of great importance for the design of more potent antifungal isoquinoline agents.
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33
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Synthesis and biological evaluation of arylpyrazoles as fungicides against phytopathogenic fungi. Mol Divers 2017; 21:317-323. [DOI: 10.1007/s11030-017-9727-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Accepted: 01/16/2017] [Indexed: 10/20/2022]
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34
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Zhang W, Sui G, Li Y, Fang M, Yang X, Ma X, Zhou W. Synthesis and in Vitro Antifungal Activities of Novel Benzamide Derivatives Containing a Triazole Moiety. Chem Pharm Bull (Tokyo) 2017; 64:616-24. [PMID: 27250796 DOI: 10.1248/cpb.c16-00056] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The study reported the synthesis and antifungal activities in vitro against six phytopathogenic fungi of 17 novel N-[2-hydroxy-3,3-dimethyl-2-[(1H-1,2,4-triazol-1-yl)methyl]butyl]benzamide derivatives. All the target compounds were synthesized and elucidated by means of MS, high resolution (HR)-MS, IR, (1)H- and (13)C-NMR analysis. The results showed that almost all the derivatives exhibited good activities against each of the tested fungi at the concentration of 50 µg/mL. Among them, 6h displayed excellent activity against Alternaria alternata with the median effective concentration value (EC50) of 1.77 µg/mL, superior to myclobutanil (EC50=6.23 µg/mL), a commercial fungicide with broad-spectrum bioactivities for plant protection and high-efficiency. Compound 6k showed the broadest antifungal spectrum, demonstrating positive activities against the corresponding fungi with EC50 values ranging from 0.98 to 6.71 µg/mL. Furthermore, 6e to 6i revealed good activities against Alternaria solani with EC50 values of 1.90, 4.51, 7.07, 2.00 and 5.44 µg/mL, respectively. The preliminary analysis of structure-activity relationship (SAR) demonstrated that the presence of F or Cl on the benzene ring remarkably improved the activity, while the introduction of 4-OMe or CF3 group decreased the activity in varying degrees. Thus, the present results strongly suggest that N-[2-hydroxy-3,3-dimethyl-2-[(1H-1,2,4-triazol-1-yl)methyl]butyl]benzamide derivatives should be promising candidates for the development of novel antifungal agents in the effective control of phytopathogenic fungi.
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Affiliation(s)
- Wen Zhang
- College of Science, Northwest A&F University
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35
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Cao FJ, Zhu LF, Kuang Q, Li XQ, Zhou BH, Yang XJ, Zhou L. Cytotoxic activity, apoptosis induction and structure-activity relationship of 8-OR-2-aryl-3,4-dihydroisoquinolin-2-ium salts as promising anticancer agents. Bioorg Med Chem Lett 2017; 27:55-60. [PMID: 27887841 DOI: 10.1016/j.bmcl.2016.11.031] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2016] [Revised: 10/11/2016] [Accepted: 11/12/2016] [Indexed: 01/28/2023]
Abstract
As our continuing research, a series of 2-aryl-8-OR-3,4-dihydroisoquinolin-2-ium bromides were evaluated for cytotoxic activity on cancer cells and apoptosis induction in the present study. SAR was derived also. Among them, 23 compounds showed the higher cytotoxicity on MKN-45 cells with IC50 values of 1.99-11.3μM than a standard anticancer drug cis-platinum (IC50=11.4μM) or their natural model compound chelerythrine (IC50=12.7μM); 16 compounds possessed the medium to high activity on NB4 cells with IC50 values of 1.67-4.62μM. SAR analysis showed that both substitution patterns of the N-aromatic ring and the type of 8-OR significantly impact the activity. AO/EB staining and flow cytometry analysis with Annexin V/PI double staining showed that the compounds were able to induce apoptosis in a concentration-dependent manner. The results above suggested that the title compounds are a class of promising compounds for the development of new anti-cancer drugs.
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Affiliation(s)
- Fang-Jun Cao
- College of Science, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Li-Fei Zhu
- College of Science, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Qian Kuang
- College of Science, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Xing-Qiang Li
- College of Science, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Bo-Hang Zhou
- College of Science, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Xin-Juan Yang
- College of Science, Northwest A&F University, Yangling, Shaanxi 712100, China.
| | - Le Zhou
- College of Science, Northwest A&F University, Yangling, Shaanxi 712100, China.
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36
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Sui G, Zhang W, Zhou K, Li Y, Zhang B, Xu D, Zou Y, Zhou W. Trialkylamine Derivatives Containing a Triazole Moiety as Promising Ergosterol Biosynthesis Inhibitor: Design, Synthesis, and Antifungal Activity. Chem Pharm Bull (Tokyo) 2017; 65:82-89. [DOI: 10.1248/cpb.c16-00732] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Guoqing Sui
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Science, Northwest A&F University
| | - Wen Zhang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Science, Northwest A&F University
| | - Kun Zhou
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Science, Northwest A&F University
| | - Yulin Li
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Science, Northwest A&F University
| | - Bingyu Zhang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Science, Northwest A&F University
| | - Dan Xu
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Science, Northwest A&F University
| | - Yong Zou
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Science, Northwest A&F University
| | - Wenming Zhou
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Science, Northwest A&F University
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Zhang J, Peng JF, Bai YB, Wang P, Wang T, Gao JM, Zhang ZT. Synthesis of pyrazolo[1,5-a]pyrimidine derivatives and their antifungal activities against phytopathogenic fungi in vitro. Mol Divers 2016; 20:887-896. [DOI: 10.1007/s11030-016-9690-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2016] [Accepted: 07/11/2016] [Indexed: 12/22/2022]
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Extraction, Chemical Composition, and Antifungal Activity of Essential Oil of Bitter Almond. Int J Mol Sci 2016; 17:ijms17091421. [PMID: 27589723 PMCID: PMC5037700 DOI: 10.3390/ijms17091421] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Revised: 08/19/2016] [Accepted: 08/19/2016] [Indexed: 11/17/2022] Open
Abstract
The essential oil from the powder residual of dried bitter almond, a novel and environmentally-friendly fungicide, was successfully extracted in a 0.7% yield by hydro-distillation under optimized conditions. The chemical composition of bitter almond essential oil (BAEO) was analyzed by gas chromatography-mass spectrometry (GC-MS). Twenty-one different components representing 99.90% of the total essential oil were identified, of which benzaldehyde (62.52%), benzoic acid (14.80%), and hexadecane (3.97%) were the most abundant components. Furthermore, the in vitro and in vivo antifungal activities of BAEO against common plant pathogenic fungi were evaluated by the mycelium linear growth rate method and pot test, respectively. It was documented that 1 mg/mL of BAEO could variously inhibit all tested pathogenic fungi with the inhibition rates of 44.8%~100%. Among the tested 19 strains of fungi, the median effective concentration (EC50) values of BAEO against Alternaria brassicae and Alternaria solani were only 50.2 and 103.2 μg/mL, respectively, which were higher than those of other fungi. The in vivo antifungal activity of BAEO against Gloeosporium orbiculare was much higher than Blumeria graminis. The protective efficacy for the former was up to 98.07% at 10 mg/mL and the treatment efficacy was 93.41% at 12 mg/mL. The above results indicated that BAEO has the great potential to be developed as a botanical and agricultural fungicide.
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Sharada DS, Shinde AH, Patel SM, Vidyacharan S. Scaffold Diversity through a Branching Double-Annulation Cascade Strategy: Iminium-Induced One-Pot Synthesis of Diverse Fused Tetrahydroisoquinoline Scaffolds. J Org Chem 2016; 81:6463-71. [DOI: 10.1021/acs.joc.6b01096] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Duddu S. Sharada
- Department of Chemistry, Indian Institute of Technology Hyderabad (IITH), Kandi, Sangareddy, Telangana 502 285, India
| | - Anand H. Shinde
- Department of Chemistry, Indian Institute of Technology Hyderabad (IITH), Kandi, Sangareddy, Telangana 502 285, India
| | - Srilaxmi M. Patel
- Department of Chemistry, Indian Institute of Technology Hyderabad (IITH), Kandi, Sangareddy, Telangana 502 285, India
| | - Shinde Vidyacharan
- Department of Chemistry, Indian Institute of Technology Hyderabad (IITH), Kandi, Sangareddy, Telangana 502 285, India
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Zhu LF, Hou Z, Zhou K, Tong ZB, Kuang Q, Geng HL, Zhou L. Synthesis, bioactivity and structure-activity relationships of new 2-aryl-8-OR-3,4-dihydroisoquinolin-2-iums salts as potential antifungal agents. Bioorg Med Chem Lett 2016; 26:2413-2417. [PMID: 27072907 DOI: 10.1016/j.bmcl.2016.04.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2016] [Revised: 03/30/2016] [Accepted: 04/01/2016] [Indexed: 11/19/2022]
Abstract
As our continuing research on antifungal dihydroisoquinolin-2-ium salts, forty 2-aryl-8-OR-3,4-dihydroisoquinolin-2-ium bromides were synthesized and characterized by spectroscopic analysis. By using the mycelium growth rate method, the compounds were evaluated for antifungal activity against three plant pathogenic fungi and structure-activity relationships (SAR) were derived. The vast majority of the compounds displayed the medium to high activity with inhibition rates of 50-100% at 150μM. About half of the compounds were more active than their natural model compounds sanguinarine and chelerythrine for all the fungi, and part or most of them were more active than positive drugs thiabendazole and azoxystrobin. SAR analysis showed that both substitution patterns of the C-ring and the type of 8-OR group significantly influenced the activity. Thus, a series of new title compounds with excellent antifungal potency emerged.
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Affiliation(s)
- Li-Fei Zhu
- College of Science, Northwest A&F University, Yangling 712100, Shaanxi Province, PR China
| | - Zhe Hou
- College of Science, Northwest A&F University, Yangling 712100, Shaanxi Province, PR China
| | - Kun Zhou
- College of Science, Northwest A&F University, Yangling 712100, Shaanxi Province, PR China
| | - Zong-Bo Tong
- College of Life Science, Northwest A&F University, Yangling 712100, Shaanxi Province, PR China
| | - Qian Kuang
- College of Science, Northwest A&F University, Yangling 712100, Shaanxi Province, PR China
| | - Hui-Ling Geng
- College of Science, Northwest A&F University, Yangling 712100, Shaanxi Province, PR China.
| | - Le Zhou
- College of Science, Northwest A&F University, Yangling 712100, Shaanxi Province, PR China.
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41
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Hou Z, Zhu LF, Yu XC, Sun MQ, Miao F, Zhou L. Design, Synthesis, and Structure--Activity Relationship of New 2-Aryl-3,4-dihydro-β-carbolin-2-ium Salts as Antifungal Agents. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2016; 64:2847-54. [PMID: 27004437 DOI: 10.1021/acs.jafc.6b00505] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Twenty-two 2-aryl-9-methyl-3,4-dihydro-β-carbolin-2-ium bromides along with four 9-demethylated derivatives were synthesized and characterized by spectroscopic analysis. By using the mycelium growth rate method, the compounds were evaluated for antifungal activities in vitro against six plant pathogenic fungi, and structure-activity relationships (SAR) were derived. Almost all of the compounds showed obvious inhibition activity on each of the fungi at 150 μM. For all of the fungi, 10 of the compounds showed average inhibition rates of >80% at 150 μM, and most of their EC50 values were in the range of 2.0-30.0 μM. SAR analysis showed that the substitution pattern of the N-aryl ring significantly influences the activity; N9-alkylation improves the activity, whereas aromatization of ring-C reduces the activity. It was concluded that the present research provided a series of new 2-aryl-9-alkyl-3,4-dihydro-β-carbolin-2-iums with excellent antifungal potency and structure optimization design for the development of new carboline antifungal agents.
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Affiliation(s)
- Zhe Hou
- College of Science and ‡College of Life Science, Northwest A&F University , Yangling 712100, Shaanxi Province, People's Republic of China
| | - Li-Fei Zhu
- College of Science and ‡College of Life Science, Northwest A&F University , Yangling 712100, Shaanxi Province, People's Republic of China
| | - Xin-chi Yu
- College of Science and ‡College of Life Science, Northwest A&F University , Yangling 712100, Shaanxi Province, People's Republic of China
| | - Ma-Qiang Sun
- College of Science and ‡College of Life Science, Northwest A&F University , Yangling 712100, Shaanxi Province, People's Republic of China
| | - Fang Miao
- College of Science and ‡College of Life Science, Northwest A&F University , Yangling 712100, Shaanxi Province, People's Republic of China
| | - Le Zhou
- College of Science and ‡College of Life Science, Northwest A&F University , Yangling 712100, Shaanxi Province, People's Republic of China
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Zhao F, Dai JK, Liu D, Wang SJ, Wang JR. Synthesis and Evaluation of Ester Derivatives of 10-Hydroxycanthin-6-one as Potential Antimicrobial Agents. Molecules 2016; 21:390. [PMID: 27007362 PMCID: PMC6272828 DOI: 10.3390/molecules21030390] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Revised: 03/12/2016] [Accepted: 03/16/2016] [Indexed: 11/26/2022] Open
Abstract
As part of our continuing research on canthin-6-one antimicrobial agents, a new series of ester derivatives of 10-hydroxycanthin-6-one were synthesized using a simple and effective synthetic route. The structure of each compound was characterized by NMR, ESI-MS, FT-IR, UV, and elemental analysis. The antimicrobial activity of these compounds against three phytopathogenic fungi (Alternaria solani, Fusarium graminearum, and Fusarium solani) and four bacteria (Bacillus cereus, Bacillus subtilis, Ralstonia solanacearum, and Pseudomonas syringae) were evaluated using the mycelium linear growth rate method and micro-broth dilution method, respectively. The structure-activity relationship is discussed. Of the tested compounds, 4 and 7s displayed significant antifungal activity against F. graminearum, with inhibition rates of 100% at a concentration of 50 μg/mL. Compounds 5, 7s, and 7t showed the best inhibitory activity against all the tested bacteria, with minimum inhibitory concentrations (MICs) between 3.91 and 31.25 μg/mL. Thus, 7s emerged as a promising lead compound for the development of novel canthine-6-one antimicrobial agents.
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Affiliation(s)
- Fei Zhao
- College of Science, Northwest A & F University, Yangling 712100, China.
| | - Jiang-Kun Dai
- College of Science, Northwest A & F University, Yangling 712100, China.
| | - Dan Liu
- College of Science, Northwest A & F University, Yangling 712100, China.
| | - Shi-Jun Wang
- College of Science, Northwest A & F University, Yangling 712100, China.
| | - Jun-Ru Wang
- College of Science, Northwest A & F University, Yangling 712100, China.
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Sagar A, Nagarjuna Babu V, Shinde AH, Sharada DS. A metal-free cyclic iminium induced one-pot double annulation cascade: access to dihydroisoquinolinium (DHIQ) salts. Org Biomol Chem 2016; 14:10366-10370. [DOI: 10.1039/c6ob02089e] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A reactive cyclic iminium induced one-pot Groebke–Blackburn–Bienayme (GBB) double annulation cascade (DAC) for the synthesis of skeletally diverse DHIQ salts has been described. The key features of this protocol are solvent-free, robust method, clean reaction profile and operational simplicity.
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Affiliation(s)
- A. Sagar
- Department of Chemistry
- Indian Institute of Technology Hyderabad
- Sangareddy
- India
| | | | - Anand H. Shinde
- Department of Chemistry
- Indian Institute of Technology Hyderabad
- Sangareddy
- India
| | - Duddu S. Sharada
- Department of Chemistry
- Indian Institute of Technology Hyderabad
- Sangareddy
- India
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