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Karak M, Acosta JAM, Cortez-Hernandez HF, Cardona JL, Forlani G, Barbosa LCA. Natural Rubrolides and Their Synthetic Congeners as Inhibitors of the Photosynthetic Electron Transport Chain. JOURNAL OF NATURAL PRODUCTS 2024; 87:2272-2280. [PMID: 39240232 PMCID: PMC11443480 DOI: 10.1021/acs.jnatprod.4c00714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2024] [Revised: 08/26/2024] [Accepted: 08/26/2024] [Indexed: 09/07/2024]
Abstract
Rubrolides are a family of naturally occurring 5-benzylidenebutenolides, which generally contain brominated phenol groups, and nearly half of them also present a chlorine attached to the butenolide core. Seven natural rubrolides were previously synthesized. When these compounds were tested against the model plant Raphanus sativus, six were found to exert a slight inhibition on plant growth. Aiming to exploit their scaffold as a model for the synthesis of new compounds targeting photosynthesis, nine new rubrolide analogues were prepared. The synthesis was accomplished in 2-4 steps with a 10-39% overall yield from 3,4-dichlorofuran-2(5H)-one. All compounds were evaluated for their ability to inhibit the whole Hill reaction or excluding photosystem I (PSI). Several natural rubrolides and their analogues displayed good inhibitory potential (IC50 = 2-8 μM). Molecular docking studies on the photosystem II-light harvesting complex II (PSII-LHCII supercomplex) binding site were also performed. Overall, data support the use of rubrolides as a model for the development of new active principles targeting the photosynthetic electron transport chain to be used as herbicides.
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Affiliation(s)
- Milandip Karak
- Department
of Chemistry, Universidade Federal de Minas
Gerais, Av. Pres. Antônio Carlos, 6627, Campus Pampulha, CEP 31270-901 Belo Horizonte, MG, Brazil
| | - Jaime A. M. Acosta
- Department
of Chemistry, Universidade Federal de Minas
Gerais, Av. Pres. Antônio Carlos, 6627, Campus Pampulha, CEP 31270-901 Belo Horizonte, MG, Brazil
| | - Héctor F. Cortez-Hernandez
- School
of Chemical Technology, Faculty of Technology, Universidad Tecnológica de Pereira, Carrera 27 #10-02, Barrio Álamos,
Código, 660003 Pereira, Risaralda, Colombia
| | - Johnny L. Cardona
- School
of Chemical Technology, Faculty of Technology, Universidad Tecnológica de Pereira, Carrera 27 #10-02, Barrio Álamos,
Código, 660003 Pereira, Risaralda, Colombia
| | - Giuseppe Forlani
- Department
of Life Science and Biotechnology, Università
di Ferrara, via L. Borsari 46, I-44121 Ferrara, Italy
| | - Luiz C. A. Barbosa
- Department
of Chemistry, Universidade Federal de Minas
Gerais, Av. Pres. Antônio Carlos, 6627, Campus Pampulha, CEP 31270-901 Belo Horizonte, MG, Brazil
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2
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Synthesis of Alkyne-Substituted Dihydropyrrolones as Bacterial Quorum-Sensing Inhibitors of Pseudomonas aeruginosa. Antibiotics (Basel) 2022; 11:antibiotics11020151. [PMID: 35203755 PMCID: PMC8868272 DOI: 10.3390/antibiotics11020151] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 01/17/2022] [Accepted: 01/17/2022] [Indexed: 11/23/2022] Open
Abstract
The Quorum-sensing system in Pseudomonas aeruginosa is responsible for the pathogenicity and the production of virulence factors and biofilm formation. Dihydropyrrolones were previously found to act as inhibitors of QS-dependent bacterial phenotypes. In this study, a range of dihydropyrrolone (DHP) analogues was synthesized via the lactone-lactam conversion of lactone intermediates followed by the formation of novel acetylene analogues of dihydropyrrolones from brominated dihydropyrrolones via Sonogashira coupling reactions in moderate to high yields. Upon biological testing, the most potent compounds, 39–40 and 44, showed higher bacterial quorum-sensing inhibitory (QSI) activity against P. aeruginosa reporter strain at 62.5 µM. Structure–activity relationship studies revealed that di-alkynyl substituent at the exocyclic position of DHPs possessed higher QSI activities than those of mono-alkynyl DHPs. Moreover, a hexyl-substituent at C3 of DHPs was beneficial to QSI activity while a phenyl substituent at C4 of DHPs was detrimental to QSI activity of analogues.
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3
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Mara Silva de Pádua G, Maria De Souza J, Celia Moura Sales M, Gomes de Vasconcelos L, Luiz Dall'Oglio E, Faraggi TM, Moreira Sampaio O, Campos Curcino Vieira L. Evaluation of Chalcone Derivatives as Photosynthesis and Plant Growth Inhibitors. Chem Biodivers 2021; 18:e2100226. [PMID: 33998137 DOI: 10.1002/cbdv.202100226] [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: 03/24/2021] [Accepted: 05/14/2021] [Indexed: 12/30/2022]
Abstract
We report the evaluation of chalcone derivatives as photosystem II (PSII) and plant growth inhibitors. Chalcone derivatives were evaluated as PSII inhibitors through Chl a fluorescence measurement. (E)-Chalcone (6a) and (E)-3-(4-bromophenyl)-1-(4-fluorophenyl)prop-2-en-1-one (6j) showed the best results, reducing the performance index on absorption basis parameter (PIabs ) by 70 %. Additionally, the decrease of TR0 /RC and ET0 /RC parameters indicates that the chalcone derivatives limited the number of active PSII reaction centers and the amount of trapped energy within them. Compounds 6a and 6j both act as post-emergent herbicides at 50 μM, reducing the root biomass of the Ipomoea grandifolia weed by 72 % and 83 %, respectively, corroborating the fluorescence results. The selectivity against weeds as compared to valuable crops by compounds 6a and 6j were evaluated employing Zea mays and Phaseolus vulgaris plants. In these, our newly synthesized compounds showed no effects on biomass accumulation of roots and aerial parts when compared to the control, providing valuable evidence for the role of these compounds as selective inhibitors of the growth of undesired weeds.
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Affiliation(s)
| | | | | | | | | | - Tomer M Faraggi
- Product Metabolism Analytical Sciences, Syngenta Crop Protection, LLC, Greensboro, NC, USA
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Bracegirdle J, Keyzers RA. Marine-derived Polyaromatic Butenolides - Isolation, Synthesis and Biological Evaluations. Curr Pharm Des 2020; 26:4351-4361. [DOI: 10.2174/1381612826666200518110617] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Accepted: 04/16/2020] [Indexed: 11/22/2022]
Abstract
Marine invertebrates, especially tunicates, are a lucrative resource for the discovery of new lead compounds
for the development of clinically utilized drugs. This review describes the isolation, synthesis and biological
activities of several classes of marine-derived butenolide natural products, namely rubrolides and related
cadiolides and prunolides. All relevant studies pertaining to these compounds up to the end of 2019 are included.
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Affiliation(s)
- Joe Bracegirdle
- School of Chemical and Physical Sciences, and Centre for Biodiscovery, Victoria University of Wellington, Wellington 6012, New Zealand
| | - Robert A. Keyzers
- School of Chemical and Physical Sciences, and Centre for Biodiscovery, Victoria University of Wellington, Wellington 6012, New Zealand
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5
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Acosta JA, Karak M, Barbosa LC, Boukouvalas J, Straforini A, Forlani G. Synthesis of new tetronamides displaying inhibitory activity against bloom-forming cyanobacteria. PEST MANAGEMENT SCIENCE 2020; 76:779-788. [PMID: 31397956 DOI: 10.1002/ps.5580] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Revised: 07/16/2019] [Accepted: 07/29/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND The increasing frequency and intensity of cyanobacterial blooms pose a serious threat to aquatic ecosystems. These blooms produce potent toxins that can contaminate drinking water and endanger the life of wild and domestic animals as well as humans. Consequently, the development of effective methods for their control is a matter of high priority. We have previously shown that some γ-benzylidenebutenolides, related to the rubrolide family of natural products, are capable of inhibiting the photosynthetic electron transport chain (Hill reaction), a target of commercial herbicides. Here we report the synthesis and biological properties of a new class of rubrolide-inspired molecules featuring a tetronamide motif. RESULTS A total of 47 N-aryl tetronamides, including 38 aldol adducts, were prepared bearing phenyl, biphenyl, naphthyl, aliphatic and heteroaromatic groups. Some of the aldol adducts were dehydrated to the corresponding γ-benzylidenetetronamides, although satisfactory yields were obtained in only three cases (52-97%). None of the synthesized compounds were capable of blocking the Hill reaction. This notwithstanding, several aldol adducts equipped with a biphenyl substituent displayed excellent inhibitory activity against Synechococcus elongatus and other cyanobacterial strains (IC50 = 1-5 μM). Further, these tetronamides were found to be essentially inactive against eukaryotic microorganisms. CONCLUSION Several newly synthesized biphenyl-containing tetronamides were shown to display potent and selective inhibitory activity against cyanobacteria. These compounds appear to exert their biological effects without interfering with the Hill reaction. As such, they represent novel leads in the search of environmentally benign agents for controlling cyanobacterial blooms. © 2019 Society of Chemical Industry.
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Affiliation(s)
- Jaime Am Acosta
- Department of Chemistry, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Milandip Karak
- Department of Chemistry, Federal University of Viçosa, Viçosa, Brazil
| | - Luiz Ca Barbosa
- Department of Chemistry, Federal University of Minas Gerais, Belo Horizonte, Brazil
- Department of Chemistry, Federal University of Viçosa, Viçosa, Brazil
| | - John Boukouvalas
- Department of Chemistry, Pavillon Alexandre-Vachon, Université Laval, Quebec, Canada
| | - Andrea Straforini
- Department of Life Science and Biotechnology, University of Ferrara, Ferrara, Italy
| | - Giuseppe Forlani
- Department of Life Science and Biotechnology, University of Ferrara, Ferrara, Italy
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Almohaywi B, Taunk A, Wenholz DS, Nizalapur S, Biswas NN, Ho KKK, Rice SA, Iskander G, Black DS, Griffith R, Kumar N. Design and Synthesis of Lactams Derived from Mucochloric and Mucobromic Acids as Pseudomonas aeruginosa Quorum Sensing Inhibitors. Molecules 2018; 23:molecules23051106. [PMID: 29735954 PMCID: PMC6100351 DOI: 10.3390/molecules23051106] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Revised: 05/04/2018] [Accepted: 05/05/2018] [Indexed: 11/24/2022] Open
Abstract
Bacterial infections, particularly hospital-acquired infections caused by Pseudomonas aeruginosa, have become a global threat with a high mortality rate. Gram-negative bacteria including P. aeruginosa employ N-acyl homoserine lactones (AHLs) as chemical signals to regulate the expression of pathogenic phenotypes through a mechanism called quorum sensing (QS). Recently, strategies targeting bacterial behaviour or QS have received great attention due to their ability to disarm rather than kill pathogenic bacteria, which lowers the evolutionary burden on bacteria and the risk of resistance development. In the present study, we report the design and synthesis of N-alkyl- and N-aryl 3,4 dichloro- and 3,4-dibromopyrrole-2-one derivatives through the reductive amination of mucochloric and mucobromic acid with aliphatic and aromatic amines. The quorum sensing inhibition (QSI) activity of the synthesized compounds was determined against a P. aeruginosa MH602 reporter strain. The phenolic compounds exhibited the best activity with 80% and 75% QSI at 250 µM and were comparable in activity to the positive control compound Fu-30. Computational docking studies performed using the LasR receptor protein of P. aeruginosa suggested the importance of hydrogen bonding and hydrophobic interactions for QSI.
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Affiliation(s)
- Basmah Almohaywi
- School of Chemistry, UNSW Australia, Sydney, NSW 2052, Australia.
- School of Pharmacy, King Khalid University, Abha 62529, Saudi Arabia.
| | - Aditi Taunk
- School of Chemistry, UNSW Australia, Sydney, NSW 2052, Australia.
| | - Daniel S Wenholz
- School of Chemistry, UNSW Australia, Sydney, NSW 2052, Australia.
| | | | | | - Kitty K K Ho
- School of Chemistry, UNSW Australia, Sydney, NSW 2052, Australia.
| | - Scott A Rice
- The Singapore Centre of Environmental Life Sciences Engineering, Nanyang Technological University, Singapore 639798, Singapore.
| | - George Iskander
- School of Chemistry, UNSW Australia, Sydney, NSW 2052, Australia.
| | - David StC Black
- School of Chemistry, UNSW Australia, Sydney, NSW 2052, Australia.
| | - Renate Griffith
- School of Medical Science, UNSW Australia, Sydney, NSW 2052, Australia.
| | - Naresh Kumar
- School of Chemistry, UNSW Australia, Sydney, NSW 2052, Australia.
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de Almeida J, Pimenta AL, Pereira UA, Barbosa LCA, Hoogenkamp MA, van der Waal SV, Crielaard W, Felippe WT. Effects of three γ-alkylidene-γ-lactams on the formation of multispecies biofilms. Eur J Oral Sci 2018. [PMID: 29517121 DOI: 10.1111/eos.12411] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
This study evaluated the inhibitory effects of lactams on Streptococcus mutans, Enterococcus faecalis, and Candida glabrata multispecies biofilm formation. γ-Alkylidene-γ-lactams 1, 2, and 3 [solubilized in 3.5% dimethyl sulfoxide (DMSO)] were tested. Glass coverslips were conditioned with either the lactams or 3.5% DMSO (control) for 1 h, inoculated with microbial cultures, and incubated for 48 h. To assess the effect of the lactams on biofilm formation, the following parameters were determined: the biofilm biomass (by both crystal violet staining and protein determination); the amount of insoluble polysaccharides of the extracellular matrix; and the number of viable and total cells [by both colony-forming unit counting and quantitative real-time PCR (qPCR)]. Data were analysed using one-way anova and post-hoc Tukey tests. Lactams 1, 2, and 3 promoted a statistically significant reduction in the amount of biofilm biomass, but only lactam 3 resulted in a statistically significant reduction in the number of attached viable E. faecalis. Both total protein content and the amount of extracellular polysaccharides decreased significantly. The effects of γ-alkylidene-γ-lactams 1, 2, and 3 on the inhibition of multispecies biofilm formation were evident by their ability to reduce the amount of protein and extracellular polysaccharides.
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Affiliation(s)
- Josiane de Almeida
- Department of Preventive Dentistry, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, the Netherlands.,Department of Endodontics, Federal University of Santa Catarina (UFSC), Florianópolis, SC, Brazil.,Department of Endodontics, University of Southern Santa Catarina (UNISUL), Palhoça, SC, Brazil
| | - Andrea L Pimenta
- Department of Periodontics, Federal University of Santa Catarina (UFSC), Florianópolis, SC, Brazil.,Department of Biologie, Université de Cergy Pontoisé, Cergy Pontoise, France
| | - Ulisses A Pereira
- Department of Chemistry, Federal University of Viçosa (UFV), Viçosa, MG, Brazil
| | - Luiz C A Barbosa
- Department of Chemistry, Federal University of Viçosa (UFV), Viçosa, MG, Brazil.,Department of Chemistry, Federal University of Minas Gerais (UFMG), Belo Horizonte, MG, Brazil
| | - Michel A Hoogenkamp
- Department of Preventive Dentistry, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
| | - Suzette V van der Waal
- Department of Preventive Dentistry, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, the Netherlands.,Department of Endodontics, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
| | - Wim Crielaard
- Department of Preventive Dentistry, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
| | - Wilson T Felippe
- Department of Endodontics, Federal University of Santa Catarina (UFSC), Florianópolis, SC, Brazil
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8
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Nain-Perez A, Barbosa LCA, Maltha CRA, Giberti S, Forlani G. Tailoring Natural Abenquines To Inhibit the Photosynthetic Electron Transport through Interaction with the D1 Protein in Photosystem II. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:11304-11311. [PMID: 29191002 DOI: 10.1021/acs.jafc.7b04624] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Abenquines are natural N-acetylaminobenzoquinones bearing amino acid residues, which act as weak inhibitors of the photosynthetic electron transport chain. Aiming to exploit the abenquine scaffold as a model for the synthesis of new herbicides targeting photosynthesis, 14 new analogues were prepared by replacing the amino acid residue with benzylamines and the acetyl with different acyl groups. The synthesis was accomplished in three steps with a 68-95% overall yield from readily available 2,5-dimethoxyaniline, acyl chlorides, and benzyl amines. Key steps include (i) acylation of the aniline, (ii) oxidation, and (iii) oxidative addition of the benzylamino moiety. The compounds were assayed for their activity as Hill inhibitors, under basal, uncoupled, or phosphorylating conditions, or excluding photosystem I. Four analogues showed high effectiveness (IC50 = 0.1-0.4 μM), comparable with the commercial herbicide diuron (IC50 = 0.3 μM). The data suggest that this class of compounds interfere at the reducing side of photosystem II, having protein D1 as the most probable target. Molecular docking studies with the plastoquinone binding site of Spinacia oleracea further strengthened this proposal.
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Affiliation(s)
- Amalyn Nain-Perez
- Department of Chemistry, Universidade Federal de Minas Gerais , Av. Pres. Antônio Carlos, 6627, Campus Pampulha, CEP 31270-901, Belo Horizonte, MG Brazil
| | - Luiz C A Barbosa
- Department of Chemistry, Universidade Federal de Minas Gerais , Av. Pres. Antônio Carlos, 6627, Campus Pampulha, CEP 31270-901, Belo Horizonte, MG Brazil
- Department of Chemistry, Universidade Federal de Viçosa , Viçosa, Av. P. H. Rolfs s/n, CEP 36570-000, Viçosa, MG Brazil
| | - Celia R A Maltha
- Department of Chemistry, Universidade Federal de Viçosa , Viçosa, Av. P. H. Rolfs s/n, CEP 36570-000, Viçosa, MG Brazil
| | - Samuele Giberti
- Department of Life Science and Biotechnology, University of Ferrara , via L. Borsari 46, I-44121 Ferrara, Italy
| | - Giuseppe Forlani
- Department of Life Science and Biotechnology, University of Ferrara , via L. Borsari 46, I-44121 Ferrara, Italy
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Abstract
Covering: 2015. Previous review: Nat. Prod. Rep., 2016, 33, 382-431This review covers the literature published in 2015 for marine natural products (MNPs), with 1220 citations (792 for the period January to December 2015) referring to compounds isolated from marine microorganisms and phytoplankton, green, brown and red algae, sponges, cnidarians, bryozoans, molluscs, tunicates, echinoderms, mangroves and other intertidal plants and microorganisms. The emphasis is on new compounds (1340 in 429 papers for 2015), together with the relevant biological activities, source organisms and country of origin. Reviews, biosynthetic studies, first syntheses, and syntheses that lead to the revision of structures or stereochemistries, have been included.
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Affiliation(s)
- John W Blunt
- Department of Chemistry, University of Canterbury, Christchurch, New Zealand.
| | - Brent R Copp
- School of Chemical Sciences, University of Auckland, Auckland, New Zealand
| | - Robert A Keyzers
- Centre for Biodiscovery, School of Chemical and Physical Sciences, Victoria University of Wellington, Wellington, New Zealand
| | - Murray H G Munro
- Department of Chemistry, University of Canterbury, Christchurch, New Zealand.
| | - Michèle R Prinsep
- Chemistry, School of Science, University of Waikato, Hamilton, New Zealand
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10
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Nain-Perez A, Barbosa LCA, Maltha CRÁ, Forlani G. Natural Abenquines and Their Synthetic Analogues Exert Algicidal Activity against Bloom-Forming Cyanobacteria. JOURNAL OF NATURAL PRODUCTS 2017; 80:813-818. [PMID: 28319393 DOI: 10.1021/acs.jnatprod.6b00629] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Abenquines are natural quinones, produced by some Streptomycetes, showing the ability to inhibit cyanobacterial growth in the 1 to 100 μM range. To further elucidate their biological significance, the synthesis of several analogues (4f-h, 5a-h) allowed us to identify some steric and electronic requirements for bioactivity. Replacing the acetyl by a benzoyl group in the quinone core and also changing the amino acid moiety with ethylpyrimidinyl or ethylpyrrolidinyl groups resulted in analogues 25-fold more potent than the natural abenquines. The two most effective analogues inhibited the proliferation of five cyanobacterial strains tested, with IC50 values ranging from 0.3 to 3 μM. These compounds may be useful leads for the development of an effective strategy for the control of cyanobacterial blooms.
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Affiliation(s)
- Amalyn Nain-Perez
- Department of Chemistry, Universidade Federal de Minas Gerais , Avenida Pres. Antônio Carlos, 6627, Campus Pampulha, CEP 31270-901, Belo Horizonte, MG, Brazil
| | - Luiz Cláudio Almeida Barbosa
- Department of Chemistry, Universidade Federal de Minas Gerais , Avenida Pres. Antônio Carlos, 6627, Campus Pampulha, CEP 31270-901, Belo Horizonte, MG, Brazil
- Department of Chemistry, Federal University of Viçosa , 36570-000, Viçosa, MG, Brazil
| | | | - Giuseppe Forlani
- Department of Life Science and Biotechnology, University of Ferrara , Via L. Borsari 46, I-44121 Ferrara, Italy
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11
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Damodar K, Kim JK, Jun JG. Efficient, collective synthesis and nitric oxide inhibitory activity of rubrolides E, F, R, S and their derivatives. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2016.11.096] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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12
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Pereira UA, Moreira TA, Barbosa LCA, Maltha CRA, Bomfim IS, Maranhão SS, Moraes MO, Pessoa C, Barros-Nepomuceno FWA. Rubrolide analogues and their derived lactams as potential anticancer agents. MEDCHEMCOMM 2016. [DOI: 10.1039/c5md00459d] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Analogues of rubrolides were synthesized and shown to be cytotoxic to several cancer cell lines and not toxic to L929 normal cells. The cytotoxicity involved the induction of cell death by apoptosis.
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Affiliation(s)
- U. A. Pereira
- Department of Chemistry
- Federal University of Viçosa
- Viçosa
- Brazil
| | - T. A. Moreira
- Department of Chemistry
- Federal University of Viçosa
- Viçosa
- Brazil
| | - L. C. A. Barbosa
- Department of Chemistry
- Federal University of Viçosa
- Viçosa
- Brazil
- Department of Chemistry
| | - C. R. A. Maltha
- Department of Chemistry
- Federal University of Viçosa
- Viçosa
- Brazil
| | - I. S. Bomfim
- Center for Research and Drug Development
- Federal University of Ceará
- Fortaleza
- Brazil
| | - S. S. Maranhão
- Center for Research and Drug Development
- Federal University of Ceará
- Fortaleza
- Brazil
| | - M. O. Moraes
- Center for Research and Drug Development
- Federal University of Ceará
- Fortaleza
- Brazil
| | - C. Pessoa
- Center for Research and Drug Development
- Federal University of Ceará
- Fortaleza
- Brazil
- Oswaldo Cruz Foundation
| | - F. W. A. Barros-Nepomuceno
- Institute of Health Sciences
- University of International Integration of the Afro-Brazilian Lusophony
- Acarape
- Brazil
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