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He B, Hu Y, Qin Y, Zhang Y, Luo X, Wang Z, Xue W. Design, synthesis and antiviral activity of indole derivatives containing quinoline moiety. Mol Divers 2025; 29:1091-1107. [PMID: 39046564 DOI: 10.1007/s11030-024-10894-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2024] [Accepted: 05/09/2024] [Indexed: 07/25/2024]
Abstract
A series of indole derivatives containing quinoline structures were designed and synthesized. The synthesized compounds were characterized by NMR and HRMS. And W14 was performed by single crystal X-ray diffraction experiments. The antiviral activity studies showed that some of the target compounds possessed significant activity against tobacco mosaic virus (TMV). In particular, W20 had significant activity. The results of in vivo anti-TMV activity assay showed that W20 possessed the best curative and protective activities with EC50 values of 84.4 and 65.7 μg/mL, which were better than ningnanmycin (NNM) 205.1 and 162.0 μg/mL, respectively. The results of Microscale thermophoresis (MST) showed that W20 had a strong binding affinity for the tobacco mosaic virus coat protein (TMV-CP) with a dissociation constant (Kd) of 0.00519 μmol/L, which was superior to that of NNM (1. 65320 μmol/L). The molecular docking studies were in accordance with the experimental results. In addition, the determination of malondialdehyde (MDA) content in tobacco leaves showed that W20 improved the disease resistance of tobacco. Overall, this study shows that indole derivatives containing quinoline can be used as new antiviral agents for plant viruses for further research.
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Affiliation(s)
- Bangcan He
- 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, China
| | - Yuzhi Hu
- 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, China
| | - Yishan Qin
- 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, China
| | - Yufang 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, China
| | - Xingping Luo
- 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, China
| | - Zhenchao Wang
- 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, China.
| | - Wei Xue
- 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, China.
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Bai Z, Dang K, Tang J, Yang R, Fan L, Li Q, Yang Y, Ye M, Su F. Synthesis, Characterization, and Evaluation of the Antifungal Properties of 3-Indolyl-3-Hydroxy Oxindole Derivatives Against Plant Pathogenic Fungi. Molecules 2025; 30:1079. [PMID: 40076304 PMCID: PMC11901744 DOI: 10.3390/molecules30051079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2025] [Revised: 02/21/2025] [Accepted: 02/25/2025] [Indexed: 03/14/2025] Open
Abstract
To discover novel fungicides with good inhibitory effects on plant fungal diseases, twenty-five 3-indolyl-3-hydroxy oxindole derivatives (3a-3y) were synthesized. These newly derivatives were characterized by NMR and HRMS. Their antifungal activities against five plant pathogenic fungi were assessed in vitro. Most of the compounds exhibited moderate to excellent antifungal activities against the five pathogenic fungi. Notably, compounds 3t, 3u, 3v, and 3w displayed remarkable and broad-spectrum antifungal activities comparable to or superior to those of the fungicides carvacrol (CA) and phenazine-1-carboxylic acid (PCA). Among them, compound 3u displayed the most excellent antifungal activity against Rhizoctonia solani Kühn (R. solani), with an EC50 of 3.44 mg/L, which was superior to CA (7.38 mg/L) and PCA (11.62 mg/L). Preliminary structure-activity relationship (SAR) results indicated that the introduction of I, Cl, or Br substituents at position 5 of the 3-hydroxy-2-oxindole and indole rings is crucial for compounds to exhibit good antifungal activity. The in vivo antifungal activity assay showed that compound 3u has good curative effects against R. solani. The current results suggest that these compounds are capable of serving as promising lead compounds.
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Affiliation(s)
- Zhiqiang Bai
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, College of Plant Protection, Yunnan Agricultural University, Kunming 650201, China; (Z.B.); (K.D.); (J.T.); (R.Y.); (L.F.); (Q.L.); (Y.Y.)
- College of Science, Yunnan Agricultural University, Kunming 650201, China
| | - Kunrong Dang
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, College of Plant Protection, Yunnan Agricultural University, Kunming 650201, China; (Z.B.); (K.D.); (J.T.); (R.Y.); (L.F.); (Q.L.); (Y.Y.)
| | - Jinrui Tang
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, College of Plant Protection, Yunnan Agricultural University, Kunming 650201, China; (Z.B.); (K.D.); (J.T.); (R.Y.); (L.F.); (Q.L.); (Y.Y.)
| | - Rongjing Yang
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, College of Plant Protection, Yunnan Agricultural University, Kunming 650201, China; (Z.B.); (K.D.); (J.T.); (R.Y.); (L.F.); (Q.L.); (Y.Y.)
| | - Liming Fan
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, College of Plant Protection, Yunnan Agricultural University, Kunming 650201, China; (Z.B.); (K.D.); (J.T.); (R.Y.); (L.F.); (Q.L.); (Y.Y.)
| | - Qiu Li
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, College of Plant Protection, Yunnan Agricultural University, Kunming 650201, China; (Z.B.); (K.D.); (J.T.); (R.Y.); (L.F.); (Q.L.); (Y.Y.)
| | - Yue Yang
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, College of Plant Protection, Yunnan Agricultural University, Kunming 650201, China; (Z.B.); (K.D.); (J.T.); (R.Y.); (L.F.); (Q.L.); (Y.Y.)
| | - Min Ye
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, College of Plant Protection, Yunnan Agricultural University, Kunming 650201, China; (Z.B.); (K.D.); (J.T.); (R.Y.); (L.F.); (Q.L.); (Y.Y.)
| | - Fawu Su
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, College of Plant Protection, Yunnan Agricultural University, Kunming 650201, China; (Z.B.); (K.D.); (J.T.); (R.Y.); (L.F.); (Q.L.); (Y.Y.)
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3
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Yang Y, Hu L, Chen T, Zhang L, Wang D, Chen Z. Chemical and Biological Investigations of Antiviral Agents Against Plant Viruses Conducted in China in the 21st Century. Genes (Basel) 2024; 15:1654. [PMID: 39766921 PMCID: PMC11728098 DOI: 10.3390/genes15121654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2024] [Revised: 12/16/2024] [Accepted: 12/17/2024] [Indexed: 01/15/2025] Open
Abstract
Research into the biology of plant viruses, their mechanisms of pathogenicity, and the induction of host resistance has laid a solid foundation for the discovery of antiviral agents and their targets and the development of effective control technologies. Additionally, recent advancements in fields such as chemical biology, cheminformatics, bioinformatics, and synthetic biology have provided valuable methods and tools for the design of antiviral drugs, the synthesis of drug molecules, assessment of their activity, and investigation of their modes of action. Compared with drug development for human viral diseases, the control of plant viral diseases presents greater challenges, including the cost-benefit of agents, simplification of control technologies, and the effectiveness of treatments. Therefore, in the current context of complex outbreaks and severe damage caused by plant viral diseases, it is crucial to delve deeper into the research and development of antiviral agents. This review provides a detailed overview of the biological characteristics of current targets for antiviral agents, the mode of interaction between plant virus targets and antivirals, and insights for future drug development. We believe this review will not only facilitate the in-depth analysis of the development of antivirals for crops but also offer valuable perspectives for the development of antiviral agents for use in human and veterinary medicine.
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Affiliation(s)
- Yuanyou Yang
- State Key Laboratory of Green Pesticides, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, China; (Y.Y.); (L.H.); (L.Z.)
| | - Lei Hu
- State Key Laboratory of Green Pesticides, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, China; (Y.Y.); (L.H.); (L.Z.)
| | - Tongtong Chen
- College of Agriculture, Guizhou University, Guiyang 550025, China;
| | - Libo Zhang
- State Key Laboratory of Green Pesticides, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, China; (Y.Y.); (L.H.); (L.Z.)
| | - Delu Wang
- College of Forestry, Guizhou University, Guiyang 550025, China;
| | - Zhuo Chen
- State Key Laboratory of Green Pesticides, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, China; (Y.Y.); (L.H.); (L.Z.)
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Zhou B, Gao Z, Yang Y, Hu Y. Synthesis of bis(indolyl)methanes using N-heterocyclic carbene salt as a C1 precursor. Org Biomol Chem 2024; 22:9058-9062. [PMID: 39436311 DOI: 10.1039/d4ob01568a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2024]
Abstract
We herein describe an alkylation reaction of indoles with NHC salts to access bis(indolyl)methanes as product. The NHC salt (or free NHC) serves as a C1 precursor due to decomposition of its N-heterocyclic ring. Although the exact roles of zinc powder and acetic/formic acid remain elusive, both of them are indispensable for this reaction. Two possible reaction pathways are proposed based on the results of mechanistic experiments.
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Affiliation(s)
- Bingwei Zhou
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China.
| | - Zhao Gao
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China.
| | - Yanhao Yang
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China.
| | - Yuanyuan Hu
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China.
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Huang H, Tang J, Dang K, Tang J, Li E, Fan L, Ye M, Wu G, Su F. Design and synthesis of bis(indolyl)-hydrazide-hydrazone derivatives and their antifungal activities against plant pathogen fungi. Nat Prod Res 2024:1-6. [PMID: 38940256 DOI: 10.1080/14786419.2024.2371994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Accepted: 06/19/2024] [Indexed: 06/29/2024]
Abstract
A series of bis(indolyl)-hydrazide-hydrazone derivatives were synthesised, and their structures were characterised using 1H-NMR and HRMS. The antifungal activity of the prepared compounds was evaluated against Pyricularia oryzae Cav., Colletotrichum -gloeosporioides Penz., Botrytis cinerea Pers.: Fr. and Rhizoctonia solani Kühn using the mycelial growth rate method. The preliminary bioassays revealed that most of the synthesised compounds exhibited antifungal activity against the four tested fungi and displayed a remarkable inhibitory effect on the mycelium growth of R. solani. In particular, compounds 3b, 3c, and 3k demonstrated significant antifungal activity against R. solani, with EC50 values of 26.42, 20.74, and 22.41 μM, respectively, outperforming the positive control shenqinmycin (47.18 μM) and carvacrol (49.13 μM).
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Affiliation(s)
- Haowei Huang
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, School of Plant Protection, Yunnan Agricultural University, Kunming, China
| | - Jinrui Tang
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, School of Plant Protection, Yunnan Agricultural University, Kunming, China
| | - Kunrong Dang
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, School of Plant Protection, Yunnan Agricultural University, Kunming, China
| | - Jiayue Tang
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, School of Plant Protection, Yunnan Agricultural University, Kunming, China
| | - Enxian Li
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, School of Plant Protection, Yunnan Agricultural University, Kunming, China
| | - Liming Fan
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, School of Plant Protection, Yunnan Agricultural University, Kunming, China
| | - Min Ye
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, School of Plant Protection, Yunnan Agricultural University, Kunming, China
| | - Guoxing Wu
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, School of Plant Protection, Yunnan Agricultural University, Kunming, China
| | - Fawu Su
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, School of Plant Protection, Yunnan Agricultural University, Kunming, China
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Miller L, Bauer F, Breit B. A Tandem Hydroformylation-Organocatalyzed Friedel-Crafts Reaction for the Synthesis of Diindolylmethanes. Chemistry 2024; 30:e202400188. [PMID: 38411034 DOI: 10.1002/chem.202400188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 02/22/2024] [Accepted: 02/26/2024] [Indexed: 02/28/2024]
Abstract
Herein, we present an efficient and atom-economic tandem hydroformylation organocatalyzed Friedel-Crafts reaction sequence for the synthesis of diindolylmethanes. Classic syntheses have relied on (Lewis) acid activation of aldehydes, which are often not commercially available and rather sensitive in handling. In contrast, the combination of rhodium-catalyzed hydroformylation and subsequent organocatalytic activation of the in-situ formed aldehydes allows the use of readily available and stable alkenes with various functional groups while avoiding acidic conditions to expand the range of available diindolylmethanes. A broad scope of diindolylmethanes was prepared in yields up to 85 % demonstrates the utility of the presented method.
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Affiliation(s)
- Lukas Miller
- Institut für Organische Chemie, Albert-Ludwigs-Universität Freiburg, Albertstraße 21, 79104, Freiburg im Breisgau, Germany
| | - Felix Bauer
- Institut für Organische Chemie, Albert-Ludwigs-Universität Freiburg, Albertstraße 21, 79104, Freiburg im Breisgau, Germany
| | - Bernhard Breit
- Institut für Organische Chemie, Albert-Ludwigs-Universität Freiburg, Albertstraße 21, 79104, Freiburg im Breisgau, Germany
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Chen D, Xu X, Yang Y, Meng H, Xu M, Dong L, Ma G, Zhang X. Discovery of Cadinane-Type Sesquiterpenoids from the Infected Stems of Hibiscus tiliaceus as Potential Agrochemical Fungicides. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:4089-4099. [PMID: 38353561 DOI: 10.1021/acs.jafc.3c08508] [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: 02/29/2024]
Abstract
Ten new cadinane-type sesquiterpenoids, named hibisceusins I-R (1-10), along with 14 known sesquiterpenoids (11-24), were acquired from the tainted stems of Hibiscus tiliaceus. Their structures were identified via spectroscopic analysis, one-dimensional (1D) and two-dimensional (2D) NMR, and computer-assisted structure elucidation techniques, including infrared (IR) and mass spectrometry (MS) data. Additionally, subsequent DP4/DP4+ probability methods were used to resolve 3's relative configurations by comparing their experimental values to the predicted NMR data. The absolute configurations of compounds 1-4 were measured through electronic circular dichroism (ECD) spectra. The ability of all isolates to inhibit the growth of five phytopathogenic fungi (Rhizopus stolonifer, Verticillium dahliae Kleb., Thanatephorus cucumeris, Fusarium oxysporum Schltdl., and F. oxysporum HK-27) was evaluated. Aldehydated sesquiterpenoids (1, 6-9, 11, 12, and 22) and a known sesquiterpenoid quinine (18) exhibited significant inhibitory activities against V. dahliae, T. cucumeris, F. oxysporum, and F. oxysporum HK-27 with minimum inhibitory concentration (MIC) values of 2.5-50 μg/mL, but all isolates remained inactive against R. stolonifer. Moreover, the effects of the isolates on the mycelial morphology were watched through scanning electron microscopy. This study revealed that aldehydated cadinane-type sesquiterpenoids could be used as novel antifungal molecules to develop agrochemical fungicides in plant protection.
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Affiliation(s)
- Deli Chen
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Key Laboratory for Research and Development of Tropical Herbs, School of Pharmacy, Hainan Medical University, Haikou 571199, China
- Hainan Branch Institute of Medicinal Plant Development (Hainan Provincial Key Laboratory of Resources Conservation and Development of Southern Medicine), Chinese Academy of Medical Sciences & Peking Union Medical College, Haikou 570311, China
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, China
| | - Xudong Xu
- Hainan Branch Institute of Medicinal Plant Development (Hainan Provincial Key Laboratory of Resources Conservation and Development of Southern Medicine), Chinese Academy of Medical Sciences & Peking Union Medical College, Haikou 570311, China
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, China
| | - Yun Yang
- Hainan Branch Institute of Medicinal Plant Development (Hainan Provincial Key Laboratory of Resources Conservation and Development of Southern Medicine), Chinese Academy of Medical Sciences & Peking Union Medical College, Haikou 570311, China
| | - Hui Meng
- Hainan Branch Institute of Medicinal Plant Development (Hainan Provincial Key Laboratory of Resources Conservation and Development of Southern Medicine), Chinese Academy of Medical Sciences & Peking Union Medical College, Haikou 570311, China
| | - Minghui Xu
- Hainan Branch Institute of Medicinal Plant Development (Hainan Provincial Key Laboratory of Resources Conservation and Development of Southern Medicine), Chinese Academy of Medical Sciences & Peking Union Medical College, Haikou 570311, China
| | - Lin Dong
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Key Laboratory for Research and Development of Tropical Herbs, School of Pharmacy, Hainan Medical University, Haikou 571199, China
| | - Guoxu Ma
- Hainan Branch Institute of Medicinal Plant Development (Hainan Provincial Key Laboratory of Resources Conservation and Development of Southern Medicine), Chinese Academy of Medical Sciences & Peking Union Medical College, Haikou 570311, China
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, China
| | - Xiaopo Zhang
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Key Laboratory for Research and Development of Tropical Herbs, School of Pharmacy, Hainan Medical University, Haikou 571199, China
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Kolagkis PX, Galathri EM, Kokotos CG. Green and sustainable approaches for the Friedel-Crafts reaction between aldehydes and indoles. Beilstein J Org Chem 2024; 20:379-426. [PMID: 38410780 PMCID: PMC10896228 DOI: 10.3762/bjoc.20.36] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Accepted: 02/07/2024] [Indexed: 02/28/2024] Open
Abstract
The synthesis of indoles and their derivatives, more specifically bis(indolyl)methanes (BIMs), has been an area of great interest in organic chemistry, since these compounds exhibit a range of interesting biological and pharmacological properties. BIMs are naturally found in cruciferous vegetables and have been shown to be effective antifungal, antibacterial, anti-inflammatory, and even anticancer agents. Traditionally, the synthesis of BIMs has been achieved upon the acidic condensation of an aldehyde with indole, utilizing a variety of protic or Lewis acids. However, due to the increased environmental awareness of our society, the focus has shifted towards the development of greener synthetic technologies, like photocatalysis, organocatalysis, the use of nanocatalysts, microwave irradiation, ball milling, continuous flow, and many more. Thus, in this review, we summarize the medicinal properties of BIMs and the developed BIM synthetic protocols, utilizing the reaction between aldehydes with indoles, while focusing on the more environmentally friendly methods developed over the years.
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Affiliation(s)
- Periklis X Kolagkis
- Laboratory of Organic Chemistry, Department of Organic Chemistry, National and Kapodistrian University of Athens, Athens, 15771, Greece
| | - Eirini M Galathri
- Laboratory of Organic Chemistry, Department of Organic Chemistry, National and Kapodistrian University of Athens, Athens, 15771, Greece
| | - Christoforos G Kokotos
- Laboratory of Organic Chemistry, Department of Organic Chemistry, National and Kapodistrian University of Athens, Athens, 15771, Greece
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Gonçalves RCR, Peñalver P, Costa SPG, Morales JC, Raposo MMM. Polyaromatic Bis(indolyl)methane Derivatives with Antiproliferative and Antiparasitic Activity. Molecules 2023; 28:7728. [PMID: 38067459 PMCID: PMC10707942 DOI: 10.3390/molecules28237728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Revised: 11/17/2023] [Accepted: 11/18/2023] [Indexed: 12/18/2023] Open
Abstract
Bis(indolyl)methanes (BIMs) are a class of compounds that have been recognized as an important core in the design of drugs with important pharmacological properties, such as promising anticancer and antiparasitic activities. Here, we explored the biological activity of the BIM core functionalized with different (hetero)aromatic moieties. We synthesized substituted BIM derivatives with triphenylamine, N,N-dimethyl-1-naphthylamine and 8-hydroxylquinolyl groups, studied their photophysical properties and evaluated their in vitro antiproliferative and antiparasitic activities. The triphenylamine BIM derivative 2a displayed an IC50 of 3.21, 3.30 and 3.93 μM against Trypanosoma brucei, Leishmania major and HT-29 cancer cell line, respectively. The selectivity index demonstrated that compound 2a was up to eight-fold more active against the parasites and HT-29 than against the healthy cell line MRC-5. Fluorescence microscopy studies with MRC-5 cells and T. brucei parasites incubated with derivative 2a indicate that the compound seems to accumulate in the cell's mitochondria and in the parasite's nucleus. In conclusion, the BIM scaffold functionalized with the triphenylamine moiety proved to be the most promising antiparasitic and anticancer agent of this series.
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Affiliation(s)
- Raquel C. R. Gonçalves
- Centre of Chemistry, University of Minho, Campus of Gualtar, 4710-057 Braga, Portugal; (R.C.R.G.); (S.P.G.C.)
- Advanced (Magnetic) Theranostic Nanostructures Lab, International Iberian Nanotechnology Laboratory, Av. Mestre José Veiga s/n, 4715-330 Braga, Portugal
| | - Pablo Peñalver
- Instituto de Parasitología y Biomedicina López Neyra, CSIC, PTS Granada, Avenida del Conocimiento 17, 18016 Armilla, Granada, Spain; (P.P.); (J.C.M.)
| | - Susana P. G. Costa
- Centre of Chemistry, University of Minho, Campus of Gualtar, 4710-057 Braga, Portugal; (R.C.R.G.); (S.P.G.C.)
| | - Juan C. Morales
- Instituto de Parasitología y Biomedicina López Neyra, CSIC, PTS Granada, Avenida del Conocimiento 17, 18016 Armilla, Granada, Spain; (P.P.); (J.C.M.)
| | - Maria Manuela M. Raposo
- Centre of Chemistry, University of Minho, Campus of Gualtar, 4710-057 Braga, Portugal; (R.C.R.G.); (S.P.G.C.)
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Tian Y, Shi J, Deng X, Yu T, Hu Y, Hu R, Lei Y, Yu L, Zhu X, Li J. Design, Synthesis, and Antifungal Activity of Some Novel Phenylthiazole Derivatives Containing an Acylhydrazone Moiety. Molecules 2023; 28:7084. [PMID: 37894562 PMCID: PMC10608836 DOI: 10.3390/molecules28207084] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 10/06/2023] [Accepted: 10/10/2023] [Indexed: 10/29/2023] Open
Abstract
Crop fungal diseases pose a serious threat to global crop production and quality. Developing new and efficient fungicides is an important measure to control crop diseases. Phenylthiazole was found to be an excellent antifungal skeleton based on our previous study on the structural optimization and biological activity of the natural product thiasporine A. To find new fungicides, 45 phenylthiazole derivatives containing an acylhydrazone moiety were designed and synthesized by the principle of active substructure splicing. Forty-two of the forty-five compounds are novel, except for compounds E1, E14, and E33. Their structures were structurally characterized by 1H NMR, 13C NMR, and HRMS. The antifungal activities of the target compounds against Magnaporthe oryzae Colletotrichum camelliaet, Bipolaris maydis, and Sclerotinia sclerotiorum were evaluated at 25 μg/mL. The bioassay results revealed that most of these compounds exhibited excellent antifungal activities against M. oryzae and C. camelliaet at 25 μg/mL. In particular, compounds E4, E10, E14, E17, E23, E26, and E27 showed the inhibition rate of more than 80% against M. oryzae, with EC50 values of 1.66, 2.01, 2.26, 1.45, 1.50, 1.29, and 2.65 μg/mL, respectively, which were superior to that of the commercial fungicides Isoprothiolane (EC50 = 3.22 μg/mL) and Phenazine-1-carboxylic acid (EC50 = 27.87 μg/mL). The preliminary structure-activity relationship (SAR) results suggested that introducing methyl, halogen, or methoxy at the ortho-position of R1 and the para-position of R2 can endow the final structure with excellent antifungal activity against M. oryzae. The current results provide useful data for developing phenylthiazole derivatives as new fungicides for controlling rice blast caused by M. oryzae.
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Affiliation(s)
- Yao Tian
- Engineering Research Center of Ecology and Agricultural Use of Wetland, Ministry of Education, Hubei Key Laboratory of Waterlogging Disaster and Agricultural Use of Wetland, College of Agriculture, Yangtze University, Jingzhou 434025, China; (Y.T.); (J.S.); (X.D.); (T.Y.); (Y.H.); (R.H.); (Y.L.); (L.Y.)
- Institute of Pesticides, Yangtze University, Jingmi Road 88, Jingzhou 434025, China
| | - Jinchao Shi
- Engineering Research Center of Ecology and Agricultural Use of Wetland, Ministry of Education, Hubei Key Laboratory of Waterlogging Disaster and Agricultural Use of Wetland, College of Agriculture, Yangtze University, Jingzhou 434025, China; (Y.T.); (J.S.); (X.D.); (T.Y.); (Y.H.); (R.H.); (Y.L.); (L.Y.)
- Institute of Pesticides, Yangtze University, Jingmi Road 88, Jingzhou 434025, China
| | - Xiaoqian Deng
- Engineering Research Center of Ecology and Agricultural Use of Wetland, Ministry of Education, Hubei Key Laboratory of Waterlogging Disaster and Agricultural Use of Wetland, College of Agriculture, Yangtze University, Jingzhou 434025, China; (Y.T.); (J.S.); (X.D.); (T.Y.); (Y.H.); (R.H.); (Y.L.); (L.Y.)
- Institute of Pesticides, Yangtze University, Jingmi Road 88, Jingzhou 434025, China
| | - Tingyu Yu
- Engineering Research Center of Ecology and Agricultural Use of Wetland, Ministry of Education, Hubei Key Laboratory of Waterlogging Disaster and Agricultural Use of Wetland, College of Agriculture, Yangtze University, Jingzhou 434025, China; (Y.T.); (J.S.); (X.D.); (T.Y.); (Y.H.); (R.H.); (Y.L.); (L.Y.)
- Institute of Pesticides, Yangtze University, Jingmi Road 88, Jingzhou 434025, China
| | - Yong Hu
- Engineering Research Center of Ecology and Agricultural Use of Wetland, Ministry of Education, Hubei Key Laboratory of Waterlogging Disaster and Agricultural Use of Wetland, College of Agriculture, Yangtze University, Jingzhou 434025, China; (Y.T.); (J.S.); (X.D.); (T.Y.); (Y.H.); (R.H.); (Y.L.); (L.Y.)
- Institute of Pesticides, Yangtze University, Jingmi Road 88, Jingzhou 434025, China
| | - Richa Hu
- Engineering Research Center of Ecology and Agricultural Use of Wetland, Ministry of Education, Hubei Key Laboratory of Waterlogging Disaster and Agricultural Use of Wetland, College of Agriculture, Yangtze University, Jingzhou 434025, China; (Y.T.); (J.S.); (X.D.); (T.Y.); (Y.H.); (R.H.); (Y.L.); (L.Y.)
- Institute of Pesticides, Yangtze University, Jingmi Road 88, Jingzhou 434025, China
| | - Yufeng Lei
- Engineering Research Center of Ecology and Agricultural Use of Wetland, Ministry of Education, Hubei Key Laboratory of Waterlogging Disaster and Agricultural Use of Wetland, College of Agriculture, Yangtze University, Jingzhou 434025, China; (Y.T.); (J.S.); (X.D.); (T.Y.); (Y.H.); (R.H.); (Y.L.); (L.Y.)
- Institute of Pesticides, Yangtze University, Jingmi Road 88, Jingzhou 434025, China
| | - Linhua Yu
- Engineering Research Center of Ecology and Agricultural Use of Wetland, Ministry of Education, Hubei Key Laboratory of Waterlogging Disaster and Agricultural Use of Wetland, College of Agriculture, Yangtze University, Jingzhou 434025, China; (Y.T.); (J.S.); (X.D.); (T.Y.); (Y.H.); (R.H.); (Y.L.); (L.Y.)
- Institute of Pesticides, Yangtze University, Jingmi Road 88, Jingzhou 434025, China
| | - Xiang Zhu
- Engineering Research Center of Ecology and Agricultural Use of Wetland, Ministry of Education, Hubei Key Laboratory of Waterlogging Disaster and Agricultural Use of Wetland, College of Agriculture, Yangtze University, Jingzhou 434025, China; (Y.T.); (J.S.); (X.D.); (T.Y.); (Y.H.); (R.H.); (Y.L.); (L.Y.)
- Institute of Pesticides, Yangtze University, Jingmi Road 88, Jingzhou 434025, China
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, China
| | - Junkai Li
- Engineering Research Center of Ecology and Agricultural Use of Wetland, Ministry of Education, Hubei Key Laboratory of Waterlogging Disaster and Agricultural Use of Wetland, College of Agriculture, Yangtze University, Jingzhou 434025, China; (Y.T.); (J.S.); (X.D.); (T.Y.); (Y.H.); (R.H.); (Y.L.); (L.Y.)
- Institute of Pesticides, Yangtze University, Jingmi Road 88, Jingzhou 434025, China
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11
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Su CF, Das D, Muhammad Aslam M, Xie JQ, Li XY, Chen MX. Eukaryotic splicing machinery in the plant-virus battleground. WILEY INTERDISCIPLINARY REVIEWS. RNA 2023; 14:e1793. [PMID: 37198737 DOI: 10.1002/wrna.1793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 02/24/2023] [Accepted: 04/19/2023] [Indexed: 05/19/2023]
Abstract
Plant virual infections are mainly caused by plant-virus parasitism which affects ecological communities. Some viruses are highly pathogen specific that can infect only specific plants, while some can cause widespread harm, such as tobacco mosaic virus (TMV) and cucumber mosaic virus (CMV). After a virus infects the host, undergoes a series of harmful effects, including the destruction of host cell membrane receptors, changes in cell membrane components, cell fusion, and the production of neoantigens on the cell surface. Therefore, competition between the host and the virus arises. The virus starts gaining control of critical cellular functions of the host cells and ultimately affects the fate of the targeted host plants. Among these critical cellular processes, alternative splicing (AS) is an essential posttranscriptional regulation process in RNA maturation, which amplify host protein diversity and manipulates transcript abundance in response to plant pathogens. AS is widespread in nearly all human genes and critical in regulating animal-virus interactions. In particular, an animal virus can hijack the host splicing machinery to re-organize its compartments for propagation. Changes in AS are known to cause human disease, and various AS events have been reported to regulate tissue specificity, development, tumour proliferation, and multi-functionality. However, the mechanisms underlying plant-virus interactions are poorly understood. Here, we summarize the current understanding of how viruses interact with their plant hosts compared with humans, analyze currently used and putative candidate agrochemicals to treat plant-viral infections, and finally discussed the potential research hotspots in the future. This article is categorized under: RNA Processing > Splicing Mechanisms RNA Processing > Splicing Regulation/Alternative Splicing.
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Affiliation(s)
- Chang-Feng Su
- Key laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), College of Life Sciences/Institute of Agro-bioengineering, Guizhou University, Guiyang, Guizhou Province, China
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for Research and Development of Fine Chemicals, Guizhou University, Guiyang, China
| | - Debatosh Das
- College of Agriculture, Food and Natural Resources (CAFNR), Division of Plant Sciences & Technology, University of Missouri, Columbia, Missouri, USA
| | - Mehtab Muhammad Aslam
- College of Agriculture, Food and Natural Resources (CAFNR), Division of Plant Sciences & Technology, University of Missouri, Columbia, Missouri, USA
- Department of Biology, Hong Kong Baptist University, and State Key Laboratory of Agrobiotechnology, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Ji-Qin Xie
- Key laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), College of Life Sciences/Institute of Agro-bioengineering, Guizhou University, Guiyang, Guizhou Province, China
| | - Xiang-Yang Li
- Key laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), College of Life Sciences/Institute of Agro-bioengineering, Guizhou University, Guiyang, Guizhou Province, China
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for Research and Development of Fine Chemicals, Guizhou University, Guiyang, China
| | - Mo-Xian Chen
- Key laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), College of Life Sciences/Institute of Agro-bioengineering, Guizhou University, Guiyang, Guizhou Province, China
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for Research and Development of Fine Chemicals, Guizhou University, Guiyang, China
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12
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Jhansirani N, Devappa V, Sangeetha CG, Sridhara S, Shankarappa KS, Mohanraj M. Identification of Potential Phytochemical/Antimicrobial Agents against Pseudoperonospora cubensis Causing Downy Mildew in Cucumber through In-Silico Docking. PLANTS (BASEL, SWITZERLAND) 2023; 12:plants12112202. [PMID: 37299181 DOI: 10.3390/plants12112202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 05/06/2023] [Accepted: 05/13/2023] [Indexed: 06/12/2023]
Abstract
Compatibility interactions between the host and the fungal proteins are necessary to successfully establish a disease in plants by fungi or other diseases. Photochemical and antimicrobial substances are generally known to increase plant resilience, which is essential for eradicating fungus infections. Through homology modeling and in silico docking analysis, we assessed 50 phytochemicals from cucumber (Cucumis sativus), 15 antimicrobial compounds from botanical sources, and six compounds from chemical sources against two proteins of Pseudoperonospora cubensis linked to cucumber downy mildew. Alpha and beta sheets made up the 3D structures of the two protein models. According to Ramachandran plot analysis, the QNE 4 effector protein model was considered high quality because it had 86.8% of its residues in the preferred region. The results of the molecular docking analysis showed that the QNE4 and cytochrome oxidase subunit 1 proteins of P. cubensis showed good binding affinities with glucosyl flavones, terpenoids and flavonoids from phytochemicals, antimicrobial compounds from botanicals (garlic and clove), and chemically synthesized compounds, indicating the potential for antifungal activity.
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Affiliation(s)
- Nagaraju Jhansirani
- Department of Plant Pathology, College of Horticulture-Bengaluru, University of Horticultural Sciences, Bagalkot 560 065, India
| | - Venkatappa Devappa
- Department of Plant Pathology, College of Horticulture-Bengaluru, University of Horticultural Sciences, Bagalkot 560 065, India
| | - Chittarada Gopal Sangeetha
- Department of Plant Pathology, College of Horticulture-Bengaluru, University of Horticultural Sciences, Bagalkot 560 065, India
| | - Shankarappa Sridhara
- Center for Climate Resilient Agriculture, Keladi Shivappa Nayaka University of Agricultural and Horticultural Sciences, Shivamogga 577 201, India
| | - Kodegandlu Subbanna Shankarappa
- Department of Plant Pathology, College of Horticulture-Bengaluru, University of Horticultural Sciences, Bagalkot 560 065, India
| | - Mooventhiran Mohanraj
- Department of Plant Pathology, College of Horticulture-Bengaluru, University of Horticultural Sciences, Bagalkot 560 065, India
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13
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Hu D, Zhang N, Zhang Y, Yuan C, Gong C, Zhou Y, Xue W. Design, synthesis and biological activity of novel chalcone derivatives containing indole. ARAB J CHEM 2023. [DOI: 10.1016/j.arabjc.2023.104776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2023] Open
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14
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Wang Y, Guo S, Yu L, Zhang W, Wang Z, Chi YR, Wu J. Hydrazone derivatives in agrochemical discovery and development. CHINESE CHEM LETT 2023. [DOI: 10.1016/j.cclet.2023.108207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
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15
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Chen J, Luo X, Chen Y, Wang Y, Peng J, Xing Z. Recent Research Progress: Discovery of Anti-Plant Virus Agents Based on Natural Scaffold. Front Chem 2022; 10:926202. [PMID: 35711962 PMCID: PMC9196591 DOI: 10.3389/fchem.2022.926202] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Accepted: 05/13/2022] [Indexed: 12/26/2022] Open
Abstract
Plant virus diseases, also known as “plant cancers”, cause serious harm to the agriculture of the world and huge economic losses every year. Antiviral agents are one of the most effective ways to control plant virus diseases. Ningnanmycin is currently the most successful anti-plant virus agent, but its field control effect is not ideal due to its instability. In recent years, great progress has been made in the research and development of antiviral agents, the mainstream research direction is to obtain antiviral agents or lead compounds based on structural modification of natural products. However, no antiviral agent has been able to completely inhibit plant viruses. Therefore, the development of highly effective antiviral agents still faces enormous challenges. Therefore, we reviewed the recent research progress of anti-plant virus agents based on natural products in the past decade, and discussed their structure-activity relationship (SAR) and mechanism of action. It is hoped that this review can provide new inspiration for the discovery and mechanism of action of novel antiviral agents.
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Affiliation(s)
- Jixiang Chen
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, China
- *Correspondence: Jixiang Chen,
| | - Xin Luo
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, China
| | - Yifang Chen
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, China
| | - Yu Wang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, China
| | - Ju Peng
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, China
- Guizhou Rice Research Institute, Guizhou Academy of Agricultural Sciences, Guiyang, China
| | - Zhifu Xing
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, China
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16
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Tian J, Ji R, Wang H, Li S, Zhang G. Discovery of Novel α-Aminophosphonates with Hydrazone as Potential Antiviral Agents Combined With Active Fragment and Molecular Docking. Front Chem 2022; 10:911453. [PMID: 37868694 PMCID: PMC10588822 DOI: 10.3389/fchem.2022.911453] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Accepted: 04/13/2022] [Indexed: 10/24/2023] Open
Abstract
A series of novel α-aminophosphonate derivatives containing hydrazone were designed and synthesized based on active fragments. Bioassay results demonstrated that title compounds possessed good activities against tobacco mosaic virus. Among them, compounds 6a, 6g, 6i, and 6j were equivalent to the commercial antiviral agents like dufulin. On structure optimization-based molecular docking, compound 6k was synthesized and displayed excellent activity with values of 65.1% curative activity, 74.3% protective activity, and 94.3% inactivation activity, which were significantly superior to the commercial antiviral agents dufulin and ningnanmycin. Therefore, this study indicated that new lead compounds could be developed by adopting a joint strategy with active fragments and molecular docking.
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Affiliation(s)
- Jia Tian
- Chemistry and Material Science College, Huaibei Normal University, Huaibei, China
| | - Renjing Ji
- Chemistry and Material Science College, Huaibei Normal University, Huaibei, China
| | - Huan Wang
- Chemistry and Material Science College, Huaibei Normal University, Huaibei, China
| | - Siyu Li
- Chemistry and Material Science College, Huaibei Normal University, Huaibei, China
| | - Guoping Zhang
- Chemistry and Material Science College, Huaibei Normal University, Huaibei, China
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education, Huaibei Normal University, Huaibei, China
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17
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Discovery of evodiamine derivatives as potent insecticide candidates. Bioorg Med Chem 2022; 62:116727. [PMID: 35366437 DOI: 10.1016/j.bmc.2022.116727] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2022] [Revised: 03/24/2022] [Accepted: 03/24/2022] [Indexed: 11/21/2022]
Abstract
In the search for novel more effective insecticides, natural products could be used as ideal template compounds due to their good environmental compatibility, various bioactivities, unique scaffolds and mode of action. We have found that natural product evodiamine, the main active component from the fruits of Evodia rutaecarpa (Juss.) Benth, displayed obvious insecticidal activities against lepidoptera pests. To continue our research, a series of evodiamine derivatives 3a-3aa were rationally designed and synthesized. The larvicidal activities results indicated that most of target compounds displayed better efficacy than evodiamine, matrine, and rotenone against Mythimna separata, Plutella xylostella and Helicoverpa armigera, among which 3z exhibited excellent larvicidal activities (65% at 2.5 mg/L against M. separata, 75% at 1.0 mg/L against P. xylostella, and 85% 10 mg/L against H. armigera, respectively), much better than evodiamine (0%), matrine (0%), and rotenone (0%). The preliminary structure activity relationships demonstrated that the fluorine atom at the E ring of evodiamine had a positive influence on the larvicidal activity. The calcium imaging experiment studies indicated that 3z could act on the ryanodine receptor (RyR) of M. separata and was an effective calcium activator for RyR.
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18
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Wang Y, Mu Y, Hu X, Zhang C, Gao Y, Ma Z, Feng J, Liu X, Lei P. Indole/Tetrahydroquinoline as Renewable Natural Resource-Inspired Scaffolds in the Devising and Preparation of Potential Fungicide Candidates. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:4582-4590. [PMID: 35385275 DOI: 10.1021/acs.jafc.1c07879] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
As a continuous effort toward developing novel and highly efficient agrochemicals for integrated management of crop pathogens, two series of oxime ester derivatives from indole and tetrahydroquinoline natural scaffolds were prepared. Guided by the preliminary inhibition rates against ubiquitous and representative fungi, the antifungal profile of the target compounds against Valsa mali was intensively and extensively studied. The tetrahydroquinoline-based derivatives 12a-12r exerted a promising inhibition effect, especially against V. mali. The remarkable compounds 12p (R = 4-OCF3) and 12r (R = 4-OBn) with EC50 values of 0.81 and 0.47 μg/mL, respectively, have a far more prominent activity than commercial fungicide trifloxystrobin. The biochemistry and physiology responses of V. mali after treatment with target compound 12p was examined, and the fruit body production, hyphae morphology, and organelles were profoundly affected. Moreover, the curative effects of compound 12p on apple detached branches and leaves were 57.69 and 64.84% at 100 μg/mL, respectively, which were even superior to that of trifloxystrobin. Meanwhile, the three-dimensional quantitative structure-activity relationship model [comparative molecular field analysis (CoMFA): q2 = 0.823, r2 = 0.924, F = 189.781, and standard error of estimation (SEE) = 0.138 and comparative molecular similarity index analysis (CoMSIA): q2 = 0.795, r2 = 0.904, F = 145.644, and SEE = 0.156] indicated that the antifungal activity of target compounds was facilitated by crucial structural factors, which would render inspiration for further design and discovery of novel fungicidal candidates.
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Affiliation(s)
- Yujia Wang
- College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
- Shaanxi Research Center of Biopesticide Engineering & Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yali Mu
- College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Xiatong Hu
- College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Caixia Zhang
- College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
- Shaanxi Research Center of Biopesticide Engineering & Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yanqing Gao
- College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
- Shaanxi Research Center of Biopesticide Engineering & Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Zhiqing Ma
- College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
- Shaanxi Research Center of Biopesticide Engineering & Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Juntao Feng
- College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
- Shaanxi Research Center of Biopesticide Engineering & Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Xili Liu
- College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
- State Key Laboratory of Crop Stress Biology for Arid Areas, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Peng Lei
- College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
- Shaanxi Research Center of Biopesticide Engineering & Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
- State Key Laboratory of Crop Stress Biology for Arid Areas, Northwest A&F University, Yangling, Shaanxi 712100, China
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Zhang Z, Ji L, Liu X, Li Z, Lv Y, Jia Z, Loh TP. Metal-free synthesis of 3,3′-bisindolylmethanes in water using Ph 3C +[B(C 6F 5) 4] − as the pre-catalyst. Org Chem Front 2022. [DOI: 10.1039/d2qo01081j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We described an efficient catalytic species generated from Ph3C+[B(C6F5)4]− by the water mediated Friedel–Crafts type reaction of indoles with carbonyl compounds to access 3,3′-bisindolylmethanes (BIMs).
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Affiliation(s)
- Zhenguo Zhang
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering Nanjing Tech University, 30 South Puzhu Road, Nanjing, 211816, China
| | - Liang Ji
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering Nanjing Tech University, 30 South Puzhu Road, Nanjing, 211816, China
| | - Xiaoxiao Liu
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering Nanjing Tech University, 30 South Puzhu Road, Nanjing, 211816, China
| | - Zhihong Li
- Jiangsu Key Laboratory of Drug Design and Optimization, and Department of Chemistry, China Pharmaceutical University, Nanjing 211198, China
| | - Yongheng Lv
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering Nanjing Tech University, 30 South Puzhu Road, Nanjing, 211816, China
| | - Zhenhua Jia
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering Nanjing Tech University, 30 South Puzhu Road, Nanjing, 211816, China
| | - Teck-Peng Loh
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 637371, Singapore
- College of Advanced Interdisciplinary Science and Technology, Henan University of Technology, Zhengzhou, 450001, China
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20
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Tian Z, Liao A, Kang J, Gao Y, Lu A, Wang Z, Wang Q. Toad Alkaloid for Pesticide Discovery: Dehydrobufotenine Derivatives as Novel Agents against Plant Virus and Fungi. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:9754-9763. [PMID: 34415761 DOI: 10.1021/acs.jafc.1c03714] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Plant viruses and fungi are a serious threat to food security and natural ecosystems. The efficient and environment-friendly control methods are urgently needed to help safeguard such resources. Here, we achieved the efficient synthesis of toad alkaloid dehydrobufotenine in eight steps with an overall yield of 8% from 5-methoxyindole. A series of dehydrobufotenine derivatives were designed, synthesized, and evaluated for their antiviral and fungicidal activities systematically. It was found for the first time that these compounds have good anti-plant virus activities and anti-plant pathogen activities. The antiviral activities of 21 compounds were similar to or better than those of ribavirin. Compounds 12 and 17 displayed better antiviral activities than ningnanmycin which is perhaps the most effective anti-plant virus agent. The antiviral mechanism research study of 12 revealed that it could make 20S CP disk fusion and aggregation. Further molecular docking results showed that there are hydrogen bonds between compounds 12, 17, and tobacco mosaic virus CP. The docking results are consistent with the antiviral activity. These compounds also displayed broad-spectrum fungicidal activities against 14 kinds of fungi, especially for Sclerotinia sclerotiorum. In this work, the synthesis, structure optimization, structure-activity relationship studies, and mode of action research of dehydrobufotenine alkaloids were carried out. It provides a reference for the development of the anti-plant virus agent and anti-plant pathogen agent from toad alkaloids.
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Affiliation(s)
- Zhaoyong Tian
- National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
| | - Ancai Liao
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University, Tianjin 300387, China
| | - Jin Kang
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University, Tianjin 300387, China
| | - Yongyue Gao
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University, Tianjin 300387, China
| | - Aidang Lu
- National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
| | - Ziwen Wang
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University, Tianjin 300387, China
| | - Qingmin Wang
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071, China
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Natural phytoalexin stilbene compound resveratrol and its derivatives as anti-tobacco mosaic virus and anti-phytopathogenic fungus agents. Sci Rep 2021; 11:16509. [PMID: 34389790 PMCID: PMC8363727 DOI: 10.1038/s41598-021-96069-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2021] [Accepted: 08/02/2021] [Indexed: 11/09/2022] Open
Abstract
Plant diseases caused by plant viruses and pathogens seriously affect crop yield and quality, and it is very difficult to control them. The discovery of new leads based on natural products is an important way to innovate pesticides. Based on the resveratrol is a kind of natural phytoalexin, but it cannot be used as candidate for the development of new drug due to its poor druggability. The phenolic hydroxyl groups in the resveratrol structure are easily destroyed by oxidation, in order to improve its stability, ester formation is the most commonly used modification method in drug design. Their structures were characterized by 1H NMR, 13C NMR and HRMS. The activity against tobacco mosaic virus (TMV) of these ester derivatives has been tested for the first time. The bioassay results showed part of the target compounds exhibited good to excellent in vivo activities against TMV. The optimum compounds III-2 (inhibitory rates of 50, 53, and 59% at 500 μg/mL for inactivation, curative, and protection activities in vivo, respectively), III-4 (inhibitory rates of 57, 59, and 51% at 500 μg/mL, respectively), and II-5 (inhibitory rates of 54, 52, and 51% at 500 μg/mL, respectively) displayed higher activity than commercial plant virucide ribavirin (inhibitory rates of 38, 37, and 40% at 500 μg/mL, respectively). Compounds I-9 and I-10 also showed excellent activities. The systematic study provides strong evidence that these simple resveratrol derivatives could become potential TMV inhibitors. The novel concise structure provides another new template for antiviral studies.
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Guo W, Lu X, Liu B, Yan H, Feng J. Anti-TMV activity and mode of action of three alkaloids isolated from Chelidonium majus. PEST MANAGEMENT SCIENCE 2021; 77:510-517. [PMID: 32815231 DOI: 10.1002/ps.6049] [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: 06/09/2020] [Revised: 08/05/2020] [Accepted: 08/19/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Plant viral diseases are difficult to control and have caused serious damage to the agricultural industry. Recently, botanical biopesticides characterized by environment friendly, safe to non-target organism and not as susceptible to produce drug resistance, have exhibited great potential to be developed as antiviral agents. To screen the natural products with antiviral effect, three alkaloids possessed anti-tobacco mosaic virus (TMV) activity were isolated from Chelidonium majus and the modes of action were investigated. RESULT The anti-TMV effect of crude extracts at 10 mg mL-1 was 51.73%. Bioassay-guided fractionation and isolation of the compounds with anti-TMV activity were performed on the methanol extract of C. majus yielding three bioactive alkaloids namely: chelerythrine (1), chelidonine (2), and sanguinarine (3). The results of bioassay showed that chelerythrine exhibited great inactivation, proliferation inhibition and protection effects against TMV at 0.5 mg mL-1 with the efficiency of 72.67%, 77.52% and 59.34%, respectively. Chelidonine at 0.1 mg mL-1 can provide 54.90% and 64.45% inhibitions on TMV through inducing resistance in two kinds of tobacco. Sanguinarine showed a weaker protection for resisting TMV in comparison to chelerythrine and chelidonine. CONCLUSION Chelerythrine and chelidonine displayed significant inhibitions on TMV with different modes of action. These results provided important evidence that the extracts in C. majus might be a potential source of new drugs in controlling virus disease agriculturally.
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Affiliation(s)
- Wenhui Guo
- College of Plant Protection, Engineering and Technology Centers of Biopesticide in Shaanxi, Northwest Agriculture and Forestry University, Yangling, China
| | - Xiang Lu
- College of Plant Protection, Engineering and Technology Centers of Biopesticide in Shaanxi, Northwest Agriculture and Forestry University, Yangling, China
| | - Bin Liu
- College of Plant Protection, Engineering and Technology Centers of Biopesticide in Shaanxi, Northwest Agriculture and Forestry University, Yangling, China
| | - He Yan
- College of Plant Protection, Engineering and Technology Centers of Biopesticide in Shaanxi, Northwest Agriculture and Forestry University, Yangling, China
| | - Juntao Feng
- College of Plant Protection, Engineering and Technology Centers of Biopesticide in Shaanxi, Northwest Agriculture and Forestry University, Yangling, China
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