1
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Damtie D. Review of Medicinal Plants Traditionally Used to Treat Diarrhea by the People in the Amhara Region of Ethiopia. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2023; 2023:8173543. [PMID: 38044982 PMCID: PMC10693470 DOI: 10.1155/2023/8173543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 08/05/2023] [Accepted: 11/20/2023] [Indexed: 12/05/2023]
Abstract
Background Diarrheal illness is the second-most common cause of death in under-five children. Worldwide, it results in about 1.7 billion illnesses and 525,000 deaths among under-five children annually. It is the leading cause of malnutrition among under-five children. Different people use medicinal plants to treat diarrhea. The present study aimed to review the medicinal plants used to treat diarrhea by the people in the Amhara region and to diagnose whether the antidiarrheal activities of the medicinal plants have been confirmed by studies using animal models. Methods The author searched 21 articles from worldwide databases up to December 2022 using Boolean operators ("AND" and "OR") and the terms "ethnobotanical studies," "ethnobiology," "traditional medicine," "ethnobotanical knowledge," and "Amhara region." Results From the 21 studies reviewed, 50 plant species grouped into 28 families were reported to treat diarrhea by the people in the Amhara region. The top most used families were Lamiaceae (12%), Fabaceae (8%), Asteraceae, Cucurbitaceae, Euphorbiaceae, and Poaceae (6% each). The modes of administration of the plant parts were orally 98.88% and topically 1.12%. The different extracts of 18 (or 36%) of the medicinal plants traditionally used to treat diarrhea by the people in the Amhara region have been proven experimentally in animal models. Conclusions The people in the Amhara region use different medicinal plants to treat diarrhea. Most of them take the medicinal plants orally. The traditional claim that 60% of medicinal plants are antidiarrheal has been confirmed in in vitro studies.
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Affiliation(s)
- Destaw Damtie
- Department of Biology, College of Sciences, Bahir Dar University, Bahir Dar, Ethiopia
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2
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Zou R, Li B, Duan W, Lin G, Cui Y. Synthesis of 3-carene-derived nanocellulose/1,3,4-thiadiazole-amide complexes with antifungal activity for plant protection. PEST MANAGEMENT SCIENCE 2022; 78:3277-3286. [PMID: 35484724 DOI: 10.1002/ps.6952] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 04/24/2022] [Accepted: 04/28/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND Nanopesticides have been proved to be a powerful and promising tool to solve the issues in agriculture. The purpose of the present study was to develop ecofriendly nanopesticide systems by the strategy of comprehensive utilization of two natural biomass resources (bagasse and turpentine oil) because of their incomparable advantages. RESULTS In this research, a series of nanocellulose carriers ETOCN-1-ETOCN-4 (ETOCN, esterified TEMPO-oxidized cellulose nanofibers) with different degrees of substitution were prepared and characterized by Fourier-transform infrared (FTIR), X-ray diffraction (XRD) and transmission electron microscopy (TEM). Then, 21 1,3,4-thiadiazole-amide compounds 8a-8u containing gem-dimethylcyclopropane ring were designed, synthesized and characterized. A preliminary bioassay indicated that compound 8i (R = p-Br Ph) exhibited broad-spectrum antifungal activity against the tested fungi. Furthermore, drug-loading complexes 8i/ETOCN-1-8i/ETOCN-4 were fabricated by integration of nanocellulose-based carriers ETOCN-1-ETOCN-4 with bioactive compound 8i, and the drug-loading capacities, microstructures and sustained-releasing performance of these complexes were also investigated. According to the observation of scanning electron microscopy (SEM) images of complex 8i/ETOCN-2, the small-molecule drug and the carrier formed a well-distributed and compact complex, which led to the excellent drug-loading capacity and sustained-releasing performance in the ethanol/water (1:1, v/v) system. CONCLUSIONS Complexes 8i/ETOCN-1-8i/ETOCN-4 deserved further study as the promising candidates for the development of nanopesticides. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Renxuan Zou
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, P. R. China
| | - Baoyu Li
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, P. R. China
| | - Wengui Duan
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, P. R. China
| | - Guishan Lin
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, P. R. China
| | - Yucheng Cui
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, P. R. China
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Lei ZW, Yao J, Liu H, Ma C, Yang W. Synthesis and Bioactivity of Novel Sulfonate Scaffold-Containing Pyrazolecarbamide Derivatives as Antifungal and Antiviral Agents. Front Chem 2022; 10:928842. [PMID: 35815220 PMCID: PMC9257181 DOI: 10.3389/fchem.2022.928842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Accepted: 05/13/2022] [Indexed: 12/02/2022] Open
Abstract
Novel pyrazolecarbamide derivatives bearing a sulfonate fragment were synthesized to identify potential antifungal and antiviral agents. All the structures of the key intermediates and target compounds were confirmed by nuclear magnetic resonance (NMR) and high-resolution mass spectrometry (HRMS). The single-crystal X-ray diffraction of the compound T22 showed that pyrazole carbamide is a sulfonate. The in vitro antifungal activities of the target compounds against Colletotrichum camelliae, Pestalotiopsis theae, Gibberella zeae, and Rhizoctonia solani were evaluated at 50 μg/ml. Among the four pathogens, the target compounds exhibited the highest antifungal activity against Rhizoctonia solani. The compound T24 (EC50 = 0.45 mg/L) had higher antifungal activity than the commercial fungicide hymexazol (EC50 = 10.49 mg/L) against R. solani, almost similar to bixafen (EC50 = 0.25 mg/L). Additionally, the target compounds exhibited protective effects in vivo against TMV. Thus, this study reveals that pyrazolecarbamide derivatives bearing a sulfonate fragment exhibit potential antifungal and antiviral activities.
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Affiliation(s)
- Zhi-Wei Lei
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, China
- Tea Research Institute, Guizhou Academy of Agricultural Sciences, Guiyang, China
- *Correspondence: Zhi-Wei Lei,
| | - Jianmei Yao
- Tea Research Institute, Guizhou Academy of Agricultural Sciences, Guiyang, China
| | - Huifang Liu
- Tea Research Institute, Guizhou Academy of Agricultural Sciences, Guiyang, China
| | - Chiyu Ma
- Tea Research Institute, Guizhou Academy of Agricultural Sciences, Guiyang, China
| | - Wen Yang
- Tea Research Institute, Guizhou Academy of Agricultural Sciences, Guiyang, China
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4
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Li R, Cen B, Duan W, Lin G. Synthesis, Antifungal Activity and 3D-QSAR Study of Novel Anisaldehyde-Derived Amide-Thiourea Compounds. Chem Biodivers 2022; 19:e202101025. [PMID: 35213086 DOI: 10.1002/cbdv.202101025] [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: 12/24/2021] [Accepted: 02/24/2022] [Indexed: 11/12/2022]
Abstract
Succinate dehydrogenase (SDH) is an important target enzyme for designing agricultural chemical fungicides. In order to explore novel natural product-based antifungal agents, twenty-one unreported anisaldehyde-derived amide-thiourea compounds were designed and synthesized using the principle of active splicing, and structurally confirmed by 1 H-NMR, 13 C-NMR, ESI-MS, FT-IR, and element analysis. In vitro antifungal activity of the target compounds was evaluated by the agar dilution method. The results showed that some target compounds exhibited better or comparable antifungal activity than that of the commercial fungicide chlorothalonil, in which compounds 5c, 5o, and 5r displayed excellent antifungal activity of 92.6 %, 92.6 % and 99.1 % against P. piricola, respectively, better than that of the positive control. In addition, 3D-QSAR analysis was carried out by the CoMFA method to reveal the relationship between the structures of the target compounds and their inhibitory activities. The simulative binding mode of the target compounds and SDH was also studied by molecular docking.
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Affiliation(s)
- Rong Li
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, Guangxi, P. R. China
| | - Bo Cen
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, Guangxi, P. R. China
| | - Wengui Duan
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, Guangxi, P. R. China
| | - Guishan Lin
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, Guangxi, P. R. China
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Li BY, Kang GQ, Huang M, Duan WG, Lin GS, Huang M, Wang X. Synthesis, bioactivity and computational simulation study of novel (Z)-3-caren-5-one oxime ethers as potential antifungal agents. RESEARCH ON CHEMICAL INTERMEDIATES 2022. [DOI: 10.1007/s11164-022-04690-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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6
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Scarim CB, Pavan FR. Recent advancement in drug development of nitro(NO 2 )-heterocyclic compounds as lead scaffolds for the treatment of Mycobacterium tuberculosis. Drug Dev Res 2022; 83:842-858. [PMID: 35106801 DOI: 10.1002/ddr.21921] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 12/26/2021] [Accepted: 01/13/2022] [Indexed: 11/11/2022]
Abstract
Tuberculosis (TB) is an infectious disease caused predominantly by Mycobacterium tuberculosis (Mtb). It was responsible for approximately 1.4 million deaths worldwide in 2019. The lack of new drugs to treat drug-resistant strains is a principal factor for the slow rise in TB infections. Our aim is to aid the development of new TB treatments by describing improvements (last decade, 2011-2021) to nitro(NO2 )-based compounds that have shown activity or pharmacological properties (e.g., anti-proliferative, anti-kinetoplastid) against Mtb. For all compounds, we have included final correlations of minimum inhibitory concentrations against Mtb (H37 Rv).
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Affiliation(s)
- Cauê Benito Scarim
- Department of Cell and Molecular Biology, University of Mississippi Medical Center (UMMC), Jackson, Mississippi, USA
| | - Fernando Rogério Pavan
- School of Pharmaceutical Sciences, Sao Paulo State University (UNESP), Araraquara, Sao Paulo, Brazil
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7
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Scarim CB, Pavan FR. An overview of sulfonamide-based conjugates: Recent advances for tuberculosis treatment. Drug Dev Res 2022; 83:567-577. [PMID: 35040503 DOI: 10.1002/ddr.21913] [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: 11/12/2021] [Revised: 12/29/2021] [Accepted: 01/04/2022] [Indexed: 11/11/2022]
Abstract
In 2019, tuberculosis (TB) caused approximately 1.4 million deaths around the world. TB is an infectious respiratory disease mainly caused by Mycobacterium tuberculosis. The lack of new drugs to treat drug-resistant strains is a principal factor for the continuous slow rise in TB infections. Sulfonamides are active moieties in various drugs used against several sicknesses, including TB. Our aim is to aid the development of new TB treatments and drugs by describing recent improvements (2011-2021) to sulfonamide-based compounds.
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Affiliation(s)
- Cauê Benito Scarim
- Department of Cell and Molecular Biology, University of Mississippi Medical Center (UMMC), Jackson, Mississippi, USA
| | - Fernando Rogério Pavan
- School of Pharmaceutical Sciences, Sao Paulo State University (UNESP), Araraquara, Sao Paulo, Brazil
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Yucheng C, Meihua C, Guishan L, Wengui D, Qingmin L, Renxuan Z, Bo C. Synthesis, Antifungal Activity and Molecular Docking Study of 1,3,4-Thiadiazole-Urea Compounds Containing gem-Dimethylcyclopropane Ring Structure. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202204055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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9
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Wang X, Duan W, Lin G, Li B, Chen M, Lei F. Synthesis, 3D-QSAR and Molecular Docking Study of Nopol-Based 1,2,4-Triazole-Thioether Compounds as Potential Antifungal Agents. Front Chem 2021; 9:757584. [PMID: 34765587 PMCID: PMC8576812 DOI: 10.3389/fchem.2021.757584] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Accepted: 09/27/2021] [Indexed: 11/29/2022] Open
Abstract
Cytochrome bc 1 complex is an important component of cellular respiratory chain, and it is also an important target enzyme to inhibit the growth of plant pathogens. Using cytochrome bc 1 complex as the target enzyme, twenty-three novel nopol-based 1,2,4-triazole-thioether compounds were designed and synthesized from natural preponderant resource β-pinene, and their structures were confirmed by FT-IR, NMR, ESI-MS and elemental analysis. The in vitro antifungal activity of the target compounds 5a-5w was preliminarily evaluated against eight plant pathogens at the concentration of 50 µg/ml. The bioassay results showed that the target compounds exhibited the best antifungal activity against Physalospora piricola, in which compounds 5b (R= o-CH3 Ph), 5e (R= o-OCH3 Ph), 5h (R= o-F Ph), 5m (R= o-Br Ph), 5o (R= m,m-OCH3 Ph), and 5r (R= p-OH Ph) had inhibition rates of 91.4, 83.3, 86.7, 83.8, 91.4 and 87.3%, respectively, much better than that of the positive control chlorothalonil. Also, compound 5a (R= Ph) had inhibition rate of 87.9% against Rhizoeotnia solani, and compound 5b (R= o-CH3 Ph) had inhibition rates of 87.6 and 89% against Bipolaris maydis and Colleterichum orbicala, respectively. In order to develop novel and promising antifungal compounds against P. piricola, the analysis of three-dimensional quantitative structure-activity relationship (3D-QSAR) was carried out using the CoMFA method on the basis of their antifungal activity data, and a reasonable and effective 3D-QSAR model (r 2 = 0.944, q 2 = 0.685) has been established. In addition, the theoretical study of molecular docking revealed that the target compounds could bind to and interact with the site of cytochrome bc 1 complex.
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Affiliation(s)
- Xiu Wang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, China
| | - Wengui Duan
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, China
| | - Guishan Lin
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, China
| | - Baoyu Li
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, China
| | - Ming Chen
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, China
| | - Fuhou Lei
- Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, Nanning, China
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10
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Wang Y, Wang L, Tan J, Li R, Jiang ZT, Tang SH. Comparative Analysis of Intracellular and in vitro Antioxidant Activities of Essential Oil From White and Black Pepper ( Piper nigrum L.). Front Pharmacol 2021; 12:680754. [PMID: 34248631 PMCID: PMC8267920 DOI: 10.3389/fphar.2021.680754] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Accepted: 05/17/2021] [Indexed: 11/24/2022] Open
Abstract
Ethnopharmacological Relevance: Pepper essential oils have potential immunomodulatory, anti-tumor, and anti-cancer activities. Pepper exhibits the potential to prevent or attenuate carcinogenesis as therapeutic tools. However, the related mechanism remains unelucidated. Aim of the Study: The present study aims to provide reasonable information for the explanation of the dissimilarity of the essential oils from white (WPEO) and black pepper (BPEO). Materials and Methods: WPEO, BPEO, and their single active component, as well as synthetic antioxidants, were compared by the cell model methods and chemical methods, including intracellular antioxidant activity (CAA), total antioxidant activities (TAA), superoxide radical (SR), hydroxyl radical (HR), DPPH radical (DR) scavenging activities and inhibition ability of lipoprotein lipid peroxidation (ILLP). Results: The median effective concentration (EC50) values (mg/mL) of the WPEO and BPEO of SR, HR, DR, and ILLP were 0.437 and 0.327, 0.486 and 0.204, 7.332 and 6.348, 0.688, and 0.624 mg/mL, respectively. The CAA units of WPEO and BPEO were 50.644 and 54.806, respectively. CAA, DR, and TAA of BPEO were significantly higher than those of WPEO (p < 0.05). The BPEO and WPEO can be differentiated as the former have higher correlations with 3-carene, α-pinene, β-pinene, and limonene while the latter has a higher caryophyllene correlation. The WPEO and BPEO show a good intracellular scavenging ability of reactive oxygen species in HeLa cells. Conclusion: Generally, pepper oil has stronger activities than single components, indicating that pepper is a broad-spectrum natural antioxidant.
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Affiliation(s)
| | | | - Jin Tan
- Tianjin Key Laboratory of Food Biotechnology, College of Biotechnology and Food Science, Tianjin University of Commerce, Tianjin, China
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11
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Wang X, Duan WG, Lin GS, Chen M, Lei FH. Synthesis, antifungal activity and 3D-QSAR study of novel nopol-based 1,3,4-thiadiazole–thioether compounds. RESEARCH ON CHEMICAL INTERMEDIATES 2021. [DOI: 10.1007/s11164-021-04510-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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12
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Aguiar J, Gonçalves JL, Alves VL, Câmara JS. Relationship between Volatile Composition and Bioactive Potential of Vegetables and Fruits of Regular Consumption-An Integrative Approach. Molecules 2021; 26:molecules26123653. [PMID: 34203867 PMCID: PMC8232647 DOI: 10.3390/molecules26123653] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 06/02/2021] [Accepted: 06/07/2021] [Indexed: 01/11/2023] Open
Abstract
In recent years, there has been a growing interest in studying and exploring the potential health benefits of foods, mainly from vegetables and fruits from regular intake. The presence of secondary metabolites, namely polyphenols, carotenoids and terpenes, in certain food matrices seems to contribute to their functional properties, expressed through an increased prevention in the development of certain chronic diseases, namely coronary heart diseases, neurodegenerative diseases, cancer and diabetes. However, some foods' volatile secondary metabolites also present important bioactive properties, although this is a poorly scientifically explored field. In this context, and in order to explore the potential bioactivity of volatile metabolites in different vegetables and fruits from regular consumption, the volatile composition was established using a green extraction technique, solid phase microextraction in headspace mode (HS-SPME), combined with gas chromatography tandem mass spectrometry (GC-MS). A total of 320 volatile metabolites, comprising 51 terpenic compounds, 45 organosulfur compounds, 31 aldehydes, 37 esters, 29 ketones, 28 alcohols, 23 furanic compounds, 22 hydrocarbons, 19 benzene compounds, 13 nitrogenous compounds, 9 carboxylic acids, 7 ethers, 4 halogenated compounds and 3 naphthalene derivatives, were positively identified. Each investigated fruit and vegetable showed a specific volatile metabolomic profile. The obtained results revealed that terpenic compounds, to which are associated antimicrobial, antioxidant, and anticancer activities, are the most predominant chemical family in beetroot (61%), orange carrot (58%) and white carrot (61%), while organosulfur compounds (antiviral activity) are dominant in onion, garlic and watercress. Broccoli and spinach are essentially constituted by alcohols and aldehydes (enzyme-inhibition and antimicrobial properties), while fruits from the Solanaceae family are characterized by esters in tamarillo and aldehydes in tomato.
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Affiliation(s)
- Joselin Aguiar
- CQM-Centro de Química da Madeira, Universidade da Madeira, Campus Universitário da Penteada, 9020-105 Funchal, Portugal; (J.A.); (J.L.G.); (V.L.A.)
| | - João L. Gonçalves
- CQM-Centro de Química da Madeira, Universidade da Madeira, Campus Universitário da Penteada, 9020-105 Funchal, Portugal; (J.A.); (J.L.G.); (V.L.A.)
| | - Vera L. Alves
- CQM-Centro de Química da Madeira, Universidade da Madeira, Campus Universitário da Penteada, 9020-105 Funchal, Portugal; (J.A.); (J.L.G.); (V.L.A.)
| | - José S. Câmara
- CQM-Centro de Química da Madeira, Universidade da Madeira, Campus Universitário da Penteada, 9020-105 Funchal, Portugal; (J.A.); (J.L.G.); (V.L.A.)
- Faculdade de Ciências Exatas e da Engenharia, Universidade da Madeira, Campus da Penteada, 9020-105 Funchal, Portugal
- Correspondence: ; Tel.: +351-291-705-112; Fax: +351-291-705-149
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Fan Z, Duan W, Lin G, Chen M, Huang M. Synthesis and Biological Activities of Novel (Z)-/(E)-Anisaldehyde-Based Oxime Ester Compounds. Chem Biodivers 2021; 18:e2100235. [PMID: 34047003 DOI: 10.1002/cbdv.202100235] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Accepted: 05/27/2021] [Indexed: 01/11/2023]
Abstract
In search of novel natural product-based bioactive molecules, twenty (ten pairs) novel (Z)-/(E)-anisaldehyde-based oxime ester compounds were designed and synthesized by using anisaldehyde as starting material. Structural characterization of the target compounds was carried out by NMR, FT-IR, ESI-MS, and elemental analysis. Their herbicidal and antifungal activities were preliminarily tested. As a result, at 50 μg/mL, compound (E)-5b exhibited excellent to good inhibition rates of 92.3 %, 79.2 %, and 73.9 %, against Rhizoctonia solani, Fusarium oxysporum f. sp. cucumerinum, and Bipolaris maydis, respectively, better than or comparable to that of the positive control chlorothalonil. In addition, at 100 μg/mL, compounds (E)-5b, (E)-5f, (Z)-5f and (E)-5d exhibited excellent to good inhibition rates of 85.8 %, 82.9 %, 78.6 % and 64.2 %, respectively, against the root-growth of rape (B. campestris), much better than that of the positive control flumioxazin. The bioassay result also showed that the synthesized compounds had obvious differences in antifungal and herbicidal activities between (Z)- and (E)-isomers. Preliminary structure-activity relationship was also discussed by theoretical calculation.
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Affiliation(s)
- Zhongtian Fan
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, Guangxi, P. R. China
| | - Wengui Duan
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, Guangxi, P. R. China
| | - Guishan Lin
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, Guangxi, P. R. China
| | - Ming Chen
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, Guangxi, P. R. China
| | - Mei Huang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, Guangxi, P. R. China
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Zhang Q, Lin G, Duan W, Zhao S, He J, Lei F. Synthesis, Antifungal Activity and 3D‐QSAR Study of Novel (
E
)‐Longifolene‐Derived Tetralone Oxime Ethers. ChemistrySelect 2021. [DOI: 10.1002/slct.202100898] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Qianan Zhang
- School of Chemistry and Chemical Engineering Guangxi University Nanning 530004 Guangxi China
| | - Guishan Lin
- School of Chemistry and Chemical Engineering Guangxi University Nanning 530004 Guangxi China
| | - Wengui Duan
- School of Chemistry and Chemical Engineering Guangxi University Nanning 530004 Guangxi China
| | - Shuyan Zhao
- School of Chemistry and Chemical Engineering Guangxi University Nanning 530004 Guangxi China
| | - Jiamin He
- School of Chemistry and Chemical Engineering Guangxi University Nanning 530004 Guangxi China
| | - Fuhou Lei
- Guangxi Key Laboratory of Chemistry and Engineering of Forest Products Guangxi University for Nationalities Nanning 530008 Guangxi China
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15
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Huang M, Huang M, Wang X, Duan WG, Lin GS, Lei FH. Synthesis, antifungal activity and 3D-QSAR study of novel acyl thiourea compounds containing gem-dimethylcyclopropane ring. Mol Divers 2021; 26:125-136. [PMID: 33914211 DOI: 10.1007/s11030-020-10163-6] [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: 09/03/2020] [Accepted: 11/25/2020] [Indexed: 10/21/2022]
Abstract
A series of novel acyl thiourea compounds containing gem-dimethylcyclopropane ring were designed and synthesized by multi-step reactions in search of novel antifungal molecules. Structures of all the target compounds were characterized by spectral techniques of UV-vis, FT-IR, 1H-NMR, 13C-NMR, and ESI-MS. The antifungal activity of the target compounds was preliminarily evaluated by agar dilution method. The antifungal bioassay revealed that, at 50 μg/mL, compounds 5h (R = o-F), 5m (R = p-Br), and 5n (R = o-NO2) showed the same antifungal activity of 73.6% against Physalospora piricola, which was comparable than that of the positive control. Furthermore, against Gibberella zeae, compounds 5k (R = m-Cl), 5l (R = m-Br), 5m (R = p-Br), and 5n (R = o-NO2) displayed the same antifungal activity of 75.6%, and compound 5o (R = p-NO2) displayed antifungal activity of 78.8%, which were all better than that of the positive control. The preliminary analysis of 3D-QSAR model was performed to study the effect of molecular structure on biological activity using the comparative molecular field analysis (CoMFA) method. The results showed 3D-QSAR model (r2 = 0.995, q2 = 0.503) was reasonable and effective.
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Affiliation(s)
- Mei Huang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, Guangxi, People's Republic of China
| | - Min Huang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, Guangxi, People's Republic of China
| | - Xiu Wang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, Guangxi, People's Republic of China
| | - Wen-Gui Duan
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, Guangxi, People's Republic of China.
| | - Gui-Shan Lin
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, Guangxi, People's Republic of China.
| | - Fu-Hou Lei
- Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, Guangxi University for Nationalities, Nanning, 530008, Guangxi, People's Republic of China
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Zhao S, Lin G, Duan W, Zhang Q, Huang Y, Lei F. Design, Synthesis, and Antifungal Activity of Novel Longifolene-Derived Diacylhydrazine Compounds. ACS OMEGA 2021; 6:9104-9111. [PMID: 33842780 PMCID: PMC8028131 DOI: 10.1021/acsomega.1c00217] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Accepted: 03/09/2021] [Indexed: 05/04/2023]
Abstract
Succinate dehydrogenase (SDH) present in the inner mitochondrial membrane is an important target enzyme for the design of SDH inhibitor-type fungicides. Using SDH as the target enzyme, 22 novel longifolene-derived diacylhydrazine compounds were designed and synthesized using the renewable natural product longifolene as the starting material. Their structures were confirmed by IR, 1H NMR, 13C NMR, electrospray mass spectrometry, and elemental analysis. In vitro antifungal activity of the target compounds was preliminarily evaluated. As a result, some of them showed better or comparable antifungal activity than that of the commercial fungicide chlorothalonil, in which compound 5a had inhibitory rates of 97.5, 80.5, 72.1, and 67.1% against Physalospora piricola, Colletotrichum orbiculare, Alternaria solani, and Gibberella zeae, respectively, presenting excellent and broad-spectrum activity that deserved further study. Besides, a reasonable and effective three-dimensional structure-activity quantitative relationship model has been established. There was a significant positive correlation between the antifungal activity and the docking-based binding energy analyzed using Spearman's rank correlation algorithm. Also, the simulative binding pattern of the target compounds with SDH was investigated by molecular docking study. Furthermore, the diacylhydrazine and phenol groups of the target compounds were proposed to be the potential pharmacophores by frontier molecular orbital analysis.
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Affiliation(s)
- Shuyan Zhao
- School
of Chemistry and Chemical Engineering, Guangxi
University, No. 100, Daxue Dong Road, Nanning, Guangxi 530004, P.
R. China
| | - Guishan Lin
- School
of Chemistry and Chemical Engineering, Guangxi
University, No. 100, Daxue Dong Road, Nanning, Guangxi 530004, P.
R. China
| | - Wengui Duan
- School
of Chemistry and Chemical Engineering, Guangxi
University, No. 100, Daxue Dong Road, Nanning, Guangxi 530004, P.
R. China
- . Phone: +86-771-2097058. Fax: +86-771-3233718.
| | - Qianan Zhang
- School
of Chemistry and Chemical Engineering, Guangxi
University, No. 100, Daxue Dong Road, Nanning, Guangxi 530004, P.
R. China
| | - Yinglan Huang
- School
of Chemistry and Chemical Engineering, Guangxi
University, No. 100, Daxue Dong Road, Nanning, Guangxi 530004, P.
R. China
| | - Fuhou Lei
- Guangxi
Key Laboratory of Chemistry and Engineering of Forest Products, Guangxi
Collaborative Innovation Center for Chemistry and Engineering of Forest
Products, Guangxi University for Nationalities, No. 188, Daxue Dong Road, Nanning, Guangxi 530006, China
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Chen M, Duan WG, Lin GS, Fan ZT, Wang X. Synthesis, Antifungal Activity, and 3D-QSAR Study of Novel Nopol-Derived 1,3,4-Thiadiazole-Thiourea Compounds. Molecules 2021; 26:1708. [PMID: 33803890 PMCID: PMC8003325 DOI: 10.3390/molecules26061708] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 03/13/2021] [Accepted: 03/17/2021] [Indexed: 11/17/2022] Open
Abstract
A series of novel nopol derivatives bearing the 1,3,4-thiadiazole-thiourea moiety were designed and synthesized by multi-step reactions in search of potent natural product-based antifungal agents. Their structures were confirmed by FT-IR, NMR, ESI-MS, and elemental analysis. Antifungal activity of the target compounds was preliminarily evaluated by in vitro methods against Fusarium oxysporum f. sp. cucumerinum, Cercospora arachidicola, Physalospora piricola, Alternaria solani, Gibberella zeae, Rhizoeotnia solani, Bipolaris maydis, and Colleterichum orbicalare at 50 µg/mL. All the target compounds exhibited better antifungal activity against P. piricola, C. arachidicola, and A. solani. Compound 6j (R = m, p-Cl Ph) showed the best broad-spectrum antifungal activity against all the tested fungi. Compounds 6c (R = m-Me Ph), 6q (R = i-Pr), and 6i (R = p-Cl Ph) had inhibition rates of 86.1%, 86.1%, and 80.2%, respectively, against P. piricola, much better than that of the positive control chlorothalonil. Moreover, compounds 6h (R = m-Cl Ph) and 6n (R = o-CF3 Ph) held inhibition rates of 80.6% and 79.0% against C. arachidicola and G. zeae, respectively, much better than that of the commercial fungicide chlorothalonil. In order to design more effective antifungal compounds against A. solani, analysis of the three-dimensional quantitative structure-activity relationship (3D-QSAR) was carried out using the CoMFA method, and a reasonable and effective 3D-QSAR model (r2 = 0.992, q2 = 0.753) has been established. Furthermore, some intriguing structure-activity relationships were found and are discussed by theoretical calculation.
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Affiliation(s)
| | - Wen-Gui Duan
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China; (M.C.); (Z.-T.F.); (X.W.)
| | - Gui-Shan Lin
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China; (M.C.); (Z.-T.F.); (X.W.)
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Design, synthesis, and antibacterial activity of novel myricetin derivatives containing sulfonate. MONATSHEFTE FUR CHEMIE 2021. [DOI: 10.1007/s00706-021-02739-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
AbstractA series of myricetin derivatives containing sulfonate groups were designed and synthesized. Preliminary antibacterial activity showed that most of the target compounds exhibited significant biological activities against Xanthomonas axonopodis pv. Citri (Xac), Ralstonia solanacearum (Rs), and Xanthomonas oryzae pv. Oryzae (Xoo). In particular, the EC50 value of compound 3e was 13.76 μg/cm3 against Xac, which was better than commercial reagents bismerthiazol (50.32 µg/cm3) and thiodiazole copper. (83.27 µg/cm3), and the EC50 value of compound 3j was 11.92 μg/cm3 against Xoo in vitro, The result was better than that of bismerthiazol (72.08 µg/cm3) and thiodiazole copper (99.26 µg/cm3). Compound 3j displayed the better in vivo activity against rice bacterial leaf blight than bismerthiazol and thiodiazole copper. Meanwhile, the antibacterial mechanism of compounds 3e and 3j was studied by scanning electron microscope (SEM). These results suggested that myricetin derivatives containing sulfonate can be considered as a new antibacterial reagents.
Graphic abstract
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Li YX, Zhang C, Pan S, Chen L, Liu M, Yang K, Zeng X, Tian J. Analysis of chemical components and biological activities of essential oils from black and white pepper (Piper nigrum L.) in five provinces of southern China. Lebensm Wiss Technol 2020. [DOI: 10.1016/j.lwt.2019.108644] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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