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Kamlo Kamso VF, Dongmo Melogmo YK, Tchegnitegni BT, Tchatat Tali MB, Dize D, Ngansop CN, Ambassa P, Ouete Nantchouang JL, Konga IS, Boyom FF, Ngadjui BT, Fotso GW. New lignan glycosides from Justicia secunda Vahl (Acanthaceae) with antimicrobial and antiparasitic properties. Heliyon 2023; 9:e22897. [PMID: 38125494 PMCID: PMC10730754 DOI: 10.1016/j.heliyon.2023.e22897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 11/21/2023] [Accepted: 11/22/2023] [Indexed: 12/23/2023] Open
Abstract
Three new lignan glucosides, namely, justisecundosides A (1), B (2a), and C (2b), were isolated from the whole plant of Justicia secunda together with seven known compounds (3-9). Their structures were established based on a comprehensive analysis of HR-ESI-MS, IR, UV, and CD, in conjunction with their 1D and 2D-NMR data. A putative biogenetic pathway of compounds 1-2a,b from coniferyl alcohol was proposed. In addition, the antimicrobialactivities of the extract, fractions, and some isolated compounds were assessed against multiresistant bacterial and fungal strains. Furthermore, the antiplasmodial, antileishmanial, and antitrypanosomal activities were assessed against the sensitive (3D7) and multidrug-resistant (Dd2) strains of P. falciparum, promastigote and bloodstream forms of L. donovani, and Trypanosoma brucei, respectively. Compound 4 exhibited moderate antibacterial activity against Staphylococcus aureus SA RN 46003 with a MIC value of 62.5 μg/mL. Besides, compound 6 demonstrated a very good activity against sensitive (IC50Pf3D7: 0.81 μg/mL) and multidrug-resistant (IC50PfDd2: 14.61 μg/mL) strains of P. falciparum while compound 4 displayed good antitrypanosomal activity (IC50: 1.19 μg/mL). Also, compound 1 was the most active on the promastigote form of L. donovani with an IC50 of 13.02 μg/mL.
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Affiliation(s)
- Viviane Flore Kamlo Kamso
- Department of Organic Chemistry, Faculty of Science, University of Yaoundé 1, P.O. Box 812, Yaoundé, Cameroon
| | | | | | | | - Darline Dize
- Department of Biochemistry, Faculty of Science, University of Yaoundé 1, P.O. Box 812, Yaoundé, Cameroon
| | - Cyrille Njampa Ngansop
- Department of Biochemistry, Faculty of Science, University of Yaoundé 1, P.O. Box 812, Yaoundé, Cameroon
| | - Pantaléon Ambassa
- Department of Organic Chemistry, Faculty of Science, University of Yaoundé 1, P.O. Box 812, Yaoundé, Cameroon
| | | | - Ingrid Simo Konga
- Department of Chemistry, Faculty of Science, University of Dschang, P.O. Box 67, Dschang, Cameroon
| | - Fabrice Fekam Boyom
- Department of Biochemistry, Faculty of Science, University of Yaoundé 1, P.O. Box 812, Yaoundé, Cameroon
| | - Bonaventure Tchaleu Ngadjui
- Department of Organic Chemistry, Faculty of Science, University of Yaoundé 1, P.O. Box 812, Yaoundé, Cameroon
- University Institute of Sciences, Technologies and Ethics, P.O. Box 30201, Yaoundé, Cameroon
| | - Ghislain Wabo Fotso
- Department of Organic Chemistry, Faculty of Science, University of Yaoundé 1, P.O. Box 812, Yaoundé, Cameroon
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Sartiva H, Nishiwaki H, Akiyama K, Yamauchi S. Regiospecific and Enantiospecific Effects of the β-Benzyl-α-benzylidene-γ-butyrolactone Structure on Phytotoxic Fungi. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:6738-6746. [PMID: 37083414 DOI: 10.1021/acs.jafc.3c00516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Novel derivatives of E-β-benzyl-α-benzylidene-γ-butyrolactone (3-benzyl-2-benzylidene-4-butanolide) with lignano-9,9'-lactone structures were developed as anti-phytopathogenic fungal compounds. Their regiospecific and enantiospecific characteristics were determined, with the E-form and 3R-configuration showing higher activities against the Alternaria alternata Japanese pear pathotype. By the syntheses of benzyl compounds instead of benzylidene and aromatic derivatives, followed by an bioassay experiment, the importance of the benzylidene structure and effects of the substituents of the aromatic ring were clarified. The (2-OCH3, 4'-CH3/4'-CF3)-derivatives, 19 and 25, and (2-OCH3, 6-CH3/6-F/6-Br, 4'-OCH3)-derivatives, 34, 38, and 42, were more effective with EC50 values of 0.1-0.3 μM. It was assumed that the 2-OCH3 group, a hydrophobic group at the 6-position, and some size of the hydrophobic group at the 4'-position were necessary for the increased activity.
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Affiliation(s)
- Hazna Sartiva
- Graduate School of Agriculture, Ehime University, 3-5-7 Tarumi, Matsuyama, Ehime 790-8566, Japan
| | - Hisashi Nishiwaki
- Graduate School of Agriculture, Ehime University, 3-5-7 Tarumi, Matsuyama, Ehime 790-8566, Japan
| | - Koichi Akiyama
- Integrated Center for Sciences, Ehime University, 3-5-7 Tarumi, Tarumi Station, Matsuyama, Ehime 790-8566, Japan
| | - Satoshi Yamauchi
- Graduate School of Agriculture, Ehime University, 3-5-7 Tarumi, Matsuyama, Ehime 790-8566, Japan
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3
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Talbi A, Arfaoui A, Efrit ML, Gaucher A, M'Rabet H, Prim D. Selective palladium-catalyzed functionalization of α-methylene butanolides. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.132926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Huber R, Marcourt L, Koval A, Schnee S, Righi D, Michellod E, Katanaev VL, Wolfender JL, Gindro K, Queiroz EF. Chemoenzymatic Synthesis of Complex Phenylpropanoid Derivatives by the Botrytis cinerea Secretome and Evaluation of Their Wnt Inhibition Activity. FRONTIERS IN PLANT SCIENCE 2022; 12:805610. [PMID: 35095976 PMCID: PMC8792767 DOI: 10.3389/fpls.2021.805610] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Accepted: 12/08/2021] [Indexed: 06/14/2023]
Abstract
In this study, a series of complex phenylpropanoid derivatives were obtained by chemoenzymatic biotransformation of ferulic acid, caffeic acid, and a mixture of both acids using the enzymatic secretome of Botrytis cinerea. These substrates were incubated with fungal enzymes, and the reactions were monitored using state-of-the-art analytical methods. Under such conditions, a series of dimers, trimers, and tetramers were generated. The reactions were optimized and scaled up. The resulting mixtures were purified by high-resolution semi-preparative HPLC combined with dry load introduction. This approach generated a series of 23 phenylpropanoid derivatives, 11 of which are described here for the first time. These compounds are divided into 12 dimers, 9 trimers (including a completely new structural scaffold), and 2 tetramers. Elucidation of their structures was performed with classical spectroscopic methods such as NMR and HRESIMS analyses. The resulting compound series were analyzed for anti-Wnt activity in TNBC cells, with several derivatives demonstrating specific inhibition.
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Affiliation(s)
- Robin Huber
- School of Pharmaceutical Sciences, Centre Médical Universitaire (CMU), University of Geneva, Geneva, Switzerland
- Institute of Pharmaceutical Sciences of Western Switzerland, Centre Médical Universitaire (CMU), University of Geneva, Geneva, Switzerland
| | - Laurence Marcourt
- School of Pharmaceutical Sciences, Centre Médical Universitaire (CMU), University of Geneva, Geneva, Switzerland
- Institute of Pharmaceutical Sciences of Western Switzerland, Centre Médical Universitaire (CMU), University of Geneva, Geneva, Switzerland
| | - Alexey Koval
- Department of Cell Physiology and Metabolism, Translational Research Centre in Oncohaematology, Faculty of Medicine, Centre Médical Universitaire (CMU), University of Geneva, Geneva, Switzerland
| | - Sylvain Schnee
- Mycology Group, Research Department Plant Protection, Agroscope, Nyon, Switzerland
| | - Davide Righi
- School of Pharmaceutical Sciences, Centre Médical Universitaire (CMU), University of Geneva, Geneva, Switzerland
- Institute of Pharmaceutical Sciences of Western Switzerland, Centre Médical Universitaire (CMU), University of Geneva, Geneva, Switzerland
| | - Emilie Michellod
- Mycology Group, Research Department Plant Protection, Agroscope, Nyon, Switzerland
| | - Vladimir L. Katanaev
- Department of Cell Physiology and Metabolism, Translational Research Centre in Oncohaematology, Faculty of Medicine, Centre Médical Universitaire (CMU), University of Geneva, Geneva, Switzerland
- School of Biomedicine, Far Eastern Federal University, Vladivostok, Russia
| | - Jean-Luc Wolfender
- School of Pharmaceutical Sciences, Centre Médical Universitaire (CMU), University of Geneva, Geneva, Switzerland
- Institute of Pharmaceutical Sciences of Western Switzerland, Centre Médical Universitaire (CMU), University of Geneva, Geneva, Switzerland
| | - Katia Gindro
- Mycology Group, Research Department Plant Protection, Agroscope, Nyon, Switzerland
| | - Emerson Ferreira Queiroz
- School of Pharmaceutical Sciences, Centre Médical Universitaire (CMU), University of Geneva, Geneva, Switzerland
- Institute of Pharmaceutical Sciences of Western Switzerland, Centre Médical Universitaire (CMU), University of Geneva, Geneva, Switzerland
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5
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He P, Zhang Y, Li N. The phytochemistry and pharmacology of medicinal fungi of the genus Phellinus: a review. Food Funct 2021; 12:1856-1881. [PMID: 33576366 DOI: 10.1039/d0fo02342f] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Phellinus Quél is one of the largest genera of Hymenochaetaceae, which is comprised of about 220 species. Most Phellinus macro-fungi are perennial lignicolous mushrooms, which are widely distributed on Earth. Some Phellinus fungi are historically recorded as traditional medicines used to treat various diseases in eastern Asian countries, especially China, Japan and Korean. Previous phytochemical studies have revealed that Phellinus fungi produce diverse secondary metabolites, which mainly contain polysaccharides, flavones, coumarins, terpenes, steroids, and styrylpyranones. Pharmacological documents have demonstrated that Phellinus mushrooms and their compounds have a variety of bioactivities, such as anti-tumor, immunomodulation, anti-oxidative and anti-inflammation, anti-diabetes, neuro-protection, and anti-viral effects. This review surveys the literature reporting the isolation, characterization, and bioactivities of secondary metabolites from the fungi of the genus Phellinus, focusing on studies published in the literature up to April 2020. Herein, a total of more than 300 compounds from 13 Phellinus species and their isolation, characterization, chemistry, pharmacological activities, and relevant molecular mechanisms are comprehensively summarized.
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Affiliation(s)
- Pingya He
- Anhui Key Laboratory of Bioactivity of Natural Products, School of Pharmacy, Anhui Medical University, Hefei 230032, China.
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Shi L, He Y, Gong J, Yang Z. Pd-Catalyzed Decarboxylative Cycloaddition for the Synthesis of Highly Substituted δ-Lactones and Lactams. Organometallics 2021. [DOI: 10.1021/acs.organomet.0c00646] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Linlin Shi
- State Key Laboratory of Chemical Oncogenomics, Key Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, Shenzhen 518055, China
- College of Chemistry, Zhengzhou University, Zhengzhou, Henan 450001, China
| | - Yingdong He
- State Key Laboratory of Chemical Oncogenomics, Key Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, Shenzhen 518055, China
| | - Jianxian Gong
- State Key Laboratory of Chemical Oncogenomics, Key Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, Shenzhen 518055, China
| | - Zhen Yang
- State Key Laboratory of Chemical Oncogenomics, Key Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, Shenzhen 518055, China
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education and Beijing National Laboratory for Molecular Science (BNLMS), and Peking-Tsinghua Center for Life Sciences, Peking University, Beijing 100871, China
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7
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Freitas e Silva KS, C. Silva L, Gonçales RA, Neves BJ, Soares CM, Pereira M. Setting New Routes for Antifungal Drug Discovery Against Pathogenic Fungi. Curr Pharm Des 2020; 26:1509-1520. [DOI: 10.2174/1381612826666200317125956] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Accepted: 02/11/2020] [Indexed: 01/08/2023]
Abstract
:Fungal diseases are life-threatening to human health and responsible for millions of deaths around the world. Fungal pathogens lead to a high number of morbidity and mortality. Current antifungal treatment comprises drugs, such as azoles, echinocandins, and polyenes and the cure is not guaranteed. In addition, such drugs are related to severe side effects and the treatment lasts for an extended period. Thus, setting new routes for the discovery of effective and safe antifungal drugs should be a priority within the health care system. The discovery of alternative and efficient antifungal drugs showing fewer side effects is time-consuming and remains a challenge. Natural products can be a source of antifungals and used in combinatorial therapy. The most important natural products are antifungal peptides, antifungal lectins, antifungal plants, and fungi secondary metabolites. Several proteins, enzymes, and metabolic pathways could be targets for the discovery of efficient inhibitor compounds and recently, heat shock proteins, calcineurin, salinomycin, the trehalose biosynthetic pathway, and the glyoxylate cycle have been investigated in several fungal species. HSP protein inhibitors and echinocandins have been shown to have a fungicidal effect against azole-resistant fungi strains. Transcriptomic and proteomic approaches have advanced antifungal drug discovery and pointed to new important specific-pathogen targets. Certain enzymes, such as those from the glyoxylate cycle, have been a target of antifungal compounds in several fungi species. Natural and synthetic compounds inhibited the activity of such enzymes and reduced the ability of fungal cells to transit from mycelium to yeast, proving to be promisor antifungal agents. Finally, computational biology has developed effective approaches, setting new routes for early antifungal drug discovery since normal approaches take several years from discovery to clinical use. Thus, the development of new antifungal strategies might reduce the therapeutic time and increase the quality of life of patients.
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Affiliation(s)
- Kleber S. Freitas e Silva
- Laboratório de Biologia Molecular, Instituto de Ciências Biológicas, Universidade Federal de Goiás, Goiânia, Brazil
| | - Lívia C. Silva
- Laboratório de Biologia Molecular, Instituto de Ciências Biológicas, Universidade Federal de Goiás, Goiânia, Brazil
| | - Relber A. Gonçales
- Laboratório de Biologia Molecular, Instituto de Ciências Biológicas, Universidade Federal de Goiás, Goiânia, Brazil
| | - Bruno J. Neves
- LabMol - Laboratory for Molecular Modeling and Drug Design, Faculdade de Farmácia, Universidade Federal de Goiás, Goiânia, GO, 74605-510, Brazil
| | - Célia M.A. Soares
- Laboratório de Biologia Molecular, Instituto de Ciências Biológicas, Universidade Federal de Goiás, Goiânia, Brazil
| | - Maristela Pereira
- Laboratório de Biologia Molecular, Instituto de Ciências Biológicas, Universidade Federal de Goiás, Goiânia, Brazil
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Lima S, Coelho F. Synthesis of 1,4,6-Tricarbonyl Compounds via Regioselective Gold(I)-Catalyzed Alkyne Hydration and Their Application in the Synthesis of α-Arylidene-butyrolactones. ACS OMEGA 2020; 5:8032-8045. [PMID: 32309713 PMCID: PMC7161055 DOI: 10.1021/acsomega.0c00101] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Accepted: 03/20/2020] [Indexed: 05/05/2023]
Abstract
We report a direct, straightforward, and regioselective hydration of 1,4-enynes designed from Morita-Baylis-Hillman adducts. Under smooth conditions and short reaction times, gold-catalyzed hydration of internal alkynes provides synthetically useful ketones as single regioisomers in yields higher than 90%. The synthetic usefulness of this protocol was demonstrated by the conversion of selected ketones into biologically valuable α-alkylidene-γ-lactones upon reduction with sodium borohydride. In the course of the scope evaluation, we discovered that this methodology could also furnish α-arylidene-β,γ-butenolides.
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Affiliation(s)
- Samia
R. Lima
- Institute of Chemistry—Laboratory
of Synthesis of Natural Products and Drugs, University of Campinas, P.O. Box 6154, 13083-970 Campinas, São
Paulo, Brazil
| | - Fernando Coelho
- Institute of Chemistry—Laboratory
of Synthesis of Natural Products and Drugs, University of Campinas, P.O. Box 6154, 13083-970 Campinas, São
Paulo, Brazil
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9
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Duhamel T, Muñiz K. Cooperative iodine and photoredox catalysis for direct oxidative lactonization of carboxylic acids. Chem Commun (Camb) 2019; 55:933-936. [DOI: 10.1039/c8cc08594c] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
C–H lactonization is enabled by visible light-promoted cooperative catalysis combining molecular iodine and an organic dye.
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Affiliation(s)
- Thomas Duhamel
- Institute of Chemical Research of Catalonia (ICIQ)
- The Barcelona Institute of Science and Technology
- 43007 Tarragona
- Spain
- Universidad de Oviedo
| | - Kilian Muñiz
- Institute of Chemical Research of Catalonia (ICIQ)
- The Barcelona Institute of Science and Technology
- 43007 Tarragona
- Spain
- ICREA
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Sivanandhan S, Khusro A, Paulraj MG, Ignacimuthu S, Al-Dhabi NA. Biocontrol Properties of Basidiomycetes: An Overview. J Fungi (Basel) 2017; 3:E2. [PMID: 29371521 PMCID: PMC5715959 DOI: 10.3390/jof3010002] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Revised: 12/29/2016] [Accepted: 01/04/2017] [Indexed: 01/12/2023] Open
Abstract
In agriculture, there is an urgent need for alternate ecofriendly products to control plant diseases. These alternate products must possess preferable characteristics such as new modes of action, cost effectiveness, biodegradability, and target specificity. In the current scenario, studies on macrofungi have been an area of importance for scientists. Macrofungi grow prolifically and are found in many parts of the world. Basidiomycetes (mushrooms) flourish ubiquitously under warm and humid climates. Basidiomycetes are rich sources of natural antibiotics. The secondary metabolites produced by them possess antimicrobial, antitumor, and antioxidant properties. The present review discusses the potential role of Basidiomycetes as anti-phytofungal, anti-phytobacterial, anti-phytoviral, mosquito larvicidal, and nematicidal agents.
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Affiliation(s)
| | - Ameer Khusro
- Department of Plant Biology and Biotechnology, Loyola College, Nungambakkam, Chennai 600034, Tamil Nadu, India.
| | - Michael Gabriel Paulraj
- Entomology Research Institute, Loyola College, Nungambakkam, Chennai 600034, Tamil Nadu, India.
| | - Savarimuthu Ignacimuthu
- Entomology Research Institute, Loyola College, Nungambakkam, Chennai 600034, Tamil Nadu, India.
- The International Scientific Partnership Program (ISPP), King Saud University, Riyadh 11451, Saudi Arabia.
| | - Naif Abdullah Al-Dhabi
- Department of Botany and Microbiology, College of Science, King Saud University, P. O. BOX 2454, Riyadh 11451, Saudi Arabia.
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Chen H, Tian T, Miao H, Zhao YY. Traditional uses, fermentation, phytochemistry and pharmacology of Phellinus linteus : A review. Fitoterapia 2016; 113:6-26. [DOI: 10.1016/j.fitote.2016.06.009] [Citation(s) in RCA: 70] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Revised: 06/18/2016] [Accepted: 06/20/2016] [Indexed: 02/02/2023]
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Krabbe SW, Johnson JS. Asymmetric total syntheses of megacerotonic acid and shimobashiric acid A. Org Lett 2015; 17:1188-91. [PMID: 25699999 DOI: 10.1021/acs.orglett.5b00140] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The asymmetric total syntheses of the α-benzylidene-γ-butyrolactone natural products megacerotonic acid and shimobashiric acid A have been accomplished in nine and 11 steps, respectively, from simple, commercially available starting materials. The key step for each synthesis is the (arene)RuCl(monosulfonamide)-catalyzed dynamic kinetic resolution-asymmetric transfer hydrogenation (DKR-ATH) of racemic α,δ-diketo-β-aryl esters to establish the absolute stereochemistry. Intramolecular diastereoselective Dieckmann cyclization forms the lactone core, and ketone reduction/alcohol elimination installs the α-arylidene.
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Affiliation(s)
- Scott W Krabbe
- Department of Chemistry, University of North Carolina at Chapel Hill , Chapel Hill, North Carolina 27599, United States
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13
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He JB, Lv XM, Li ZH, Zhang S, Hu DB, Yin RH, Zhao ZZ, Feng T, Liu JK. Chain terpenoids isolated from cultures of basidiomycete Phellinus sp. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2015; 17:767-771. [PMID: 25630942 DOI: 10.1080/10286020.2014.1003184] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Two new sesquiterpenoids (phellinuins H and I), together with five known compounds, were isolated from cultures of mushroom Phellinus sp. Their structures were elucidated based on comparison of nuclear magnetic resonance and MS data and those reported in the literature. All of these compounds were tested for cytotoxicity against five cancer cell lines (HL-60, SMMC-721, A-549, MCF-7, and SW-480).
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Affiliation(s)
- Jiang-Bo He
- a State Key Laboratory of Phytochemistry and Plant Resources in West China , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201 , China
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Kim KH, Woo KW, Moon E, Choi SU, Kim SY, Choi SZ, Son MW, Lee KR. Identification of antitumor lignans from the seeds of morning glory (Pharbitis nil). JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2014; 62:7746-7752. [PMID: 25020073 DOI: 10.1021/jf501470k] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
In the search for antitumor compounds from Korean natural resources, activity-guided fractionation and purification processes were used on seeds of morning glory (Pharbitis nil). Air-dried P. nil seeds were extracted with ethanol and separated into n-hexane, chloroform, ethyl acetate, and n-butanol. Four new lignans, pharbilignans A-D (1-4) were isolated from the most active ethyl acetate fraction of the ethanol extract. Their structures were characterized on the basis of spectroscopic methods, including one- and two-dimensional nuclear magnetic resonance (NMR) techniques, high resolution mass spectrometry (HRMS), and circular dichroism (CD) spectroscopy. The cytotoxic activities of the isolates (1-4) were evaluated by determining their inhibitory effects on four human tumor cell lines (A549, SK-OV-3, SK-MEL-2, and HCT15) using a sulforhodamine B (SRB) bioassay. Pharbilignan C (3) showed potent cytotoxicity against A549, SK-OV-3, SK-MEL-2, and HCT-15 cell lines with IC50 values of 1.42, 0.16, 0.20, and 0.14 μM, respectively. On the basis of the expanded understanding that inflammation is a crucial cause in tumor progress, we also evaluated anti-inflammatory activity of the isolates (1-4). Pharbilignan C (3) strongly inhibited nitric oxide (NO) production in the lipopolysaccharide (LPS)-activated BV-2 microglia cell line with an IC50 value of 12.8 μM.
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Affiliation(s)
- Ki Hyun Kim
- Natural Products Laboratory, School of Pharmacy, Sungkyunkwan University , Suwon 440-746, Korea
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Li T, Xiang C, Zhang B, Yan J. Hypervalent Iodine Catalyzed Cyclization of Aryl-Substituted Alkanoic Acids. Helv Chim Acta 2014. [DOI: 10.1002/hlca.201300311] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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16
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Nguyen PH, Yang JL, Uddin MN, Park SL, Lim SI, Jung DW, Williams DR, Oh WK. Protein tyrosine phosphatase 1B (PTP1B) inhibitors from Morinda citrifolia (Noni) and their insulin mimetic activity. JOURNAL OF NATURAL PRODUCTS 2013; 76:2080-2087. [PMID: 24224843 DOI: 10.1021/np400533h] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
As part of our ongoing search for new antidiabetic agents from medicinal plants, we found that a methanol extract of Morinda citrifolia showed potential stimulatory effects on glucose uptake in 3T3-L1 adipocyte cells. Bioassay-guided fractionation of this active extract yielded two new lignans (1 and 2) and three new neolignans (9, 10, and 14), as well as 10 known compounds (3-8, 11-13, and 15). The absolute configurations of compounds 9, 10, and 14 were determined by ECD spectra analysis. Compounds 3, 6, 7, and 15 showed inhibitory effects on PTP1B enzyme with IC50 values of 21.86 ± 0.48, 15.01 ± 0.20, 16.82 ± 0.42, and 4.12 ± 0.09 μM, respectively. Furthermore, compounds 3, 6, 7, and 15 showed strong stimulatory effects on 2-NBDG uptake in 3T3-L1 adipocyte cells. This study indicated the potential of compounds 3, 6, 7, and 15 as lead molecules for antidiabetic agents.
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Affiliation(s)
- Phi-Hung Nguyen
- College of Pharmacy, Chosun University , Gwangju 501-759, Republic of Korea
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Zheng YB, Lu CH, Shen YM. New abscisic acid-related metabolites from Phellinus vaninii. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2012; 14:613-617. [PMID: 22574939 DOI: 10.1080/10286020.2012.681379] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Two new and three known abscisic acid-related metabolites were obtained from the potato dextrose agar culture of Phellinus vaninii YB2005. Their structures were established on the basis of detailed spectroscopic analyses, including 1D NMR, 2D NMR, and HR-Q-TOF-MS techniques. The putative biosynthesis pathway of these secondary metabolites would decipher the mechanism of the symbiosis between plant and fungi from the view of chemistry.
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Affiliation(s)
- Yong-Biao Zheng
- College of Life Sciences, Engineering Research Center of Industrial Microbiology, Ministry of Education, Fujian Normal University, Fuzhou, Fujian, 350108, China
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Bae JS, Kim TH. Enzymatic transformation of caffeic acid with enhanced cyclooxygenase-2 inhibitory activity. Bioorg Med Chem Lett 2012; 22:793-6. [DOI: 10.1016/j.bmcl.2011.12.072] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2011] [Revised: 12/13/2011] [Accepted: 12/13/2011] [Indexed: 11/16/2022]
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Lee YM, Moon JS, Yun BS, Park KD, Choi GJ, Kim JC, Lee SH, Kim SU. Antifungal activity of CHE-23C, a dimeric sesquiterpene from Chloranthus henryi. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2009; 57:5750-5755. [PMID: 19566082 DOI: 10.1021/jf900674y] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
An antifungal compound was isolated from methanol extracts of stems and roots of Chloranthus henryi Hemsl. using ethyl acetate extraction and various chromatographic techniques. On the basis of spectroscopic analyses including mass and various NMR, the structure of the compound was identified as a dimeric sesquiterpene, CHE-23C. The compound showed potent antifungal activities (MICs = 1-32 microg/mL) in vitro against various phytopathogenic fungi such as Alternaria kikuchiana , Botrytis cinerea , Colletotrichum lagenarium , Magnaporthe grisea , Pythium ultimum , and Phytophthora infestans . In particular, it exhibited 91 and 100% disease-control activity in vivo against tomato late blight (P. infestans) and wheat leaf rust ( Puccinia recondita ) at concentrations of 33 and 100 microg/mL, respectively. The disease-control activity of this compound was stronger than that of the commercially available fungicide chlorothalonil, but weaker than that of dimethomorph. Therefore, the compound might serve as an interesting lead to develop effective antifungal agents.
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Affiliation(s)
- Yun Mi Lee
- Division of Biosystems Research, Korea Research Institute of Bioscience and Biotechnology, Daejeon 305-806, Korea
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21
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Wan X, Liu H, Huang X, Luo J, Kong L. Biotransformation of caffeic acid by Momordica charantia peroxidase. CAN J CHEM 2008. [DOI: 10.1139/v08-090] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Biotransformation of caffeic acid with H2O2/Momordica charantia peroxidase at pH 5.0, 25 °C in the presence of acetone has resulted in the isolation of three caffeic acid trimers 1–3, five caffeic acid dimers 4–8, and one monomer 9. Among them, seven (1–7) are new compounds, and two (8 and 9) are known compounds, including one compound (9), which was obtained by biotransformation for the first time. The structures were established by 2D NMR techniques, such as HSQC, HMBC, and NOESY measurements. The possible mechanism for the formation of the products is also discussed. This is the first time that caffeic acid trimers have been obtained through the biotransformation of catalyzed by peroxidase in vitro. Compound 5 has shown much stronger anti-oxidative activity than the other caffeic acid polymers obtained.Key words: Momordica charantia peroxidase, caffeic acid, polymers of caffeic acid, biotransformation, antioxidant activity.
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Kang TH, Hwang EI, Yun BS, Park KD, Kwon BM, Shin CS, Kim SU. Inhibition of chitin synthases and antifungal activities by 2'-benzoyloxycinnamaldehyde from Pleuropterus ciliinervis and its derivatives. Biol Pharm Bull 2007; 30:598-602. [PMID: 17329866 DOI: 10.1248/bpb.30.598] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
In the course of search for potent chitin synthase inhibitors from natural resources, a novel chitin synthases inhibitor, 2'-benzoyloxycinnamaldehyde (2'-BCA) (I), was isolated from the aerial parts of Pleuropterus ciliinervis NAKAI. 2'-BCA inhibited chitin synthase 1 and 2 of Saccharomyces cerevisiae with the IC50s of 54.9 and 70.8 microg/ml, respectively, whereas it exhibited no inhibitory activity for chitin synthase 3 up to 280 microg/ml. Its derivatives, 2'-chloro- (V) and 2(-bromo-cinnamaldehyde (VI), each showed 1.9 and 2.7-fold stronger inhibitory activities than 2'-BCA, with the IC50s of 37.2 and 26.6 microg/ml, respectively. Especially, the IC50 of compound VI against chitin synthase 2 represented 1.7-fold more potent inhibitory activity than polyoxin D, a well-known chitin synthase inhibitor. Furthermore, compounds V and VI showed potent antifungal activities against various fungi including human pathogenic fungi, with a particularly strong inhibitory activity against Cryptococcus neoformans (MIC = 16 microg/ml). Although the chemical synthesis of this compound has been reported, the present study is the first report to describe the isolation of 2'-BCA from natural resources and chitin synthases inhibitory activities of its derivatives. These results suggested that 2'-BCA and its derivatives can potentially serve as useful lead compounds for development of antifungal agents.
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Affiliation(s)
- Tae Hoon Kang
- Korea Research Institute of Bioscience and Biotechnology, Daejeon 305-806, Korea
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Yeo WH, Hwang EI, So SH, Lee SM. Phellinone, a new furanone derivative from thePhellinus linteus KT&G PL-2. Arch Pharm Res 2007; 30:924-6. [PMID: 17879742 DOI: 10.1007/bf02993957] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Phellinone, a new furanone derivative, has been isolated from the stem-cooked rice culture broth of Phellinus linteus KT&GPL-2. Phellinone was purified by consecutive solvent partition, silica gel, preparative TLC and preparative HPLC. The structure of phellinone was assigned as a furanone derivative on the basis of various spectroscopic analyses, including Mass and NMR spectroscopies. Its molecular weight and formula were found to be 248 and C15H20O3, respectively, and showed antimicrobial activity against Bacillus subtilis IAM 1090.
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Dohi T, Takenaga N, Goto A, Maruyama A, Kita Y. Direct Lactone Formation by Using Hypervalent Iodine(III) Reagents with KBr via Selective C−H Abstraction Protocol. Org Lett 2007; 9:3129-32. [PMID: 17616204 DOI: 10.1021/ol071315n] [Citation(s) in RCA: 96] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We have developed a new and reliable method for the direct construction of biologically important aryl lactones and phthalides from carboxylic and benzoic acids, using a combination of hypervalent iodine(III) reagents with KBr.
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Affiliation(s)
- Toshifumi Dohi
- Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamada-oka, Suita, Osaka, 565-0871 Japan
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Kim E, Lee HK, Hwang E, Kim S, Lee WS, Lee S, Jung S. Stereochemistry of Phellinsin A: A Concise Synthesis of α‐Arylidene‐γ‐Lactones. SYNTHETIC COMMUN 2005. [DOI: 10.1081/scc-200054845] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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26
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Rosa LH, Machado KMG, Jacob CC, Capelari M, Rosa CA, Zani CL. Screening of Brazilian basidiomycetes for antimicrobial activity. Mem Inst Oswaldo Cruz 2004; 98:967-74. [PMID: 14762527 DOI: 10.1590/s0074-02762003000700019] [Citation(s) in RCA: 57] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
A total of 103 isolates of basidiomycetes, representing 84 species from different Brazilian ecosystems, were evaluated for their antifungal and antibacterial activity in a panel of pathogenic and non-pathogenic microorganisms. Tissue plugs of the fruiting bodies were cultivated in liquid media and the whole culture extracted with ethyl acetate. Crude extracts from Agaricus cf. nigrecentulus, Agrocybe perfecta, Climacodon pulcherrimus, Gloeoporus thelephoroides, Hexagonia hydnoides, Irpex lacteus, Leucoagaricus cf. cinereus, Marasmius cf. bellus, Marasmius sp., Nothopanus hygrophanus, Oudemansiella canarii, Pycnoporus sanguineus, Phellinus sp., and Tyromyces duracinus presented significant activity against one or more of the target microorganisms. Eight isolates were active only against bacteria while three inhibited exclusively the growth of fungi. Two extracts presented wide antimicrobial spectrum and were active against both fungi and bacteria. Differences in the bioactivity of extracts obtained from isolates from the same species were observed.
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Affiliation(s)
- Luiz Henrique Rosa
- Departamento de Microbiologia, Instituto de Ci ncias Biol gicas, Universidade Federal de Minas Gerais Rachou-Fiocruz, Belo Horizonte, MG, Brasil
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Abstract
Given that resistance to antiprotozoal drugs exists and is likely to increase and given that currently no reliable treatments exist for some of these infections, efforts to find new targets for chemotherapy must be continued. In the case of cyst-forming pathogenic protozoa, one such target might be encystment pathways and cyst-wall assembly. Information is increasing on protozoan encystment and, as it does, we can begin to answer the question of whether targeting it for chemotherapy is a viable drug strategy. Currently, there are significant efforts to understand encystment in Giardia and Entamoeba, and potential targets are being discovered as work on their encystment mechanisms progress. We know with certainty now that Giardia and Entamoeba cyst walls contain unique proteins and polysaccharides which differ from those of their hosts and thus make them potentially interesting targets for a variety of chemotherapeutic attacks. Although we lack detailed information about the other protozoan cyst formers, enough evidence exists for Giardia and Entamoeba that it seems prudent to screen them with some of the antifungal drugs, especially those that target mannoproteins, chitin synthesis, and beta (1, 3) glucan synthesis to ascertain if they target elements in these protozoan pathways that are similar to those found in fungi.
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Affiliation(s)
- Edward L Jarroll
- Department of Biology, Northeastern University, 106 Egan Bldg., 360 Huntington Avenue, Boston, MA 02115, USA.
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Abstract
The vast number and variety of chemotherapeutic agents isolated from microbial natural products and used to treat bacterial infections have greatly contributed to the improvement of human health during the past century. However, only a limited number of antifungal agents (polyenes and azoles, plus the recently introduced caspofungin acetate) are currently available for the treatment of life-threatening fungal infections. Furthermore, the prevalence of systemic fungal infections has increased significantly during the past decade. For this reason, the development of new antifungal agents, preferably with novel mechanisms of action, is an urgent medical need. A selection of antifungal agents in early stages of development, produced by micro-organisms, is summarized in this review. The compounds are classified according to their mechanisms of action, covering inhibitors of the synthesis of cell wall components (glucan, chitin and mannoproteins), of sphingolipid synthesis (serine palmitoyltransferase, ceramide synthase, inositol phosphoceramide synthase and fatty acid elongation) and of protein synthesis (sordarins). In addition, some considerations related to the chemotaxonomy of the producing organisms and some issues relevant to antifungal drug discovery are also discussed.
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Affiliation(s)
- M F Vicente
- Centro de Investigacíon Básica, Merck Research Laboratories, Merck, Sharp and Dohme España, S. A. Josefa Valcárcel 38, 28027 Madrid, Spain.
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