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Burke A, Moutayakine A. Accessing medicinally relevant O‐benzofused heterocycles through C‐X activation: Recent trends. European J Org Chem 2022. [DOI: 10.1002/ejoc.202101465] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Anthony Burke
- University of Evora Chemistry Rua Romão Ramalho, 59 7000 Evora PORTUGAL
| | - Amina Moutayakine
- University of Evora Institute for Advanced Studies and Research: Universidade de Evora Instituto de Investigacao e Formacao Avancada LAQV-Requimte PORTUGAL
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2
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Zhao AX, Horsfall LE, Hulme AN. New Methods for the Synthesis of Spirocyclic Cephalosporin Analogues. Molecules 2021; 26:6035. [PMID: 34641579 PMCID: PMC8512572 DOI: 10.3390/molecules26196035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 09/28/2021] [Accepted: 09/29/2021] [Indexed: 11/30/2022] Open
Abstract
Spiro compounds provide attractive targets in drug discovery due to their inherent three-dimensional structures, which enhance protein interactions, aid solubility and facilitate molecular modelling. However, synthetic methodology for the spiro-functionalisation of important classes of penicillin and cephalosporin β-lactam antibiotics is comparatively limited. We report a novel method for the generation of spiro-cephalosporin compounds through a Michael-type addition to the dihydrothiazine ring. Coupling of a range of catechols is achieved under mildly basic conditions (K2CO3, DMF), giving the stereoselective formation of spiro-cephalosporins (d.r. 14:1 to 8:1) in moderate to good yields (28-65%).
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Affiliation(s)
- Alan X. Zhao
- EaStChem School of Chemistry, The University of Edinburgh, Joseph Black Building, David Brewster Road, Edinburgh EH9 3FJ, UK;
| | - Louise E. Horsfall
- Institute of Quantitative Biology, Biochemistry, and Biotechnology, School of Biological Science, The University of Edinburgh, Roger Land Building, Alexander Crum Brown Road, Edinburgh EH9 3FF, UK;
| | - Alison N. Hulme
- EaStChem School of Chemistry, The University of Edinburgh, Joseph Black Building, David Brewster Road, Edinburgh EH9 3FJ, UK;
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3
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Becerra‐Ruiz M, Galdámez A, Modak B, Vilches‐Herrera(s) M. Diastereoselective Synthesis of Spirodihydrobenzofuran Analogues of the Natural Product Filifolinol. ChemistrySelect 2020. [DOI: 10.1002/slct.202003580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Martin Becerra‐Ruiz
- Department of Chemistry Faculty of Sciences University of Chile Las Palmeras 3425 Ñuñoa Santiago de Chile
| | - Antonio Galdámez
- Department of Chemistry Faculty of Sciences University of Chile Las Palmeras 3425 Ñuñoa Santiago de Chile
| | - Brenda Modak
- Department of Material Sciences Faculty of Chemistry and Biology University of Santiago de Chile, Av. Libertador Bernardo O'Higgins 3363 Estación Central Chile
| | - Marcelo Vilches‐Herrera(s)
- Department of Chemistry Faculty of Sciences University of Chile Las Palmeras 3425 Ñuñoa Santiago de Chile
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4
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Abdolmohammadi S, Rasouli Nasrabadi SR, Dabiri MR, Banihashemi Jozdani SM. TiO
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Nanoparticles Immobilized on Carbon Nanotubes: An Efficient Heterogeneous Catalyst in Cyclocondensation Reaction of Isatins with Malononitrile and 4‐Hydroxycoumarin or 3,4‐Methylenedioxyphenol under Mild Reaction Conditions. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5462] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Shahrzad Abdolmohammadi
- Department of Chemistry, East Tehran BranchIslamic Azad University P.O. Box 18735‐138 Tehran Iran
| | | | - Mohammad Reza Dabiri
- Department of ChemistryK.N. Toosi University of Technology P.O. Box 15875‐4416 Tehran Iran
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5
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Batmani H, Noroozi Pesyan N, Havasi F, Aalinejad M. Synthesis of Spiro‐dihydrofuran in the Presence of a Novel and Reusable Nanocatalyst Cu (II)‐Glycerol/MCM‐41. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.4997] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Hana Batmani
- Department of Organic Chemistry, Faculty of ChemistryUrmia University 57159 Urmia Iran
| | - Nader Noroozi Pesyan
- Department of Organic Chemistry, Faculty of ChemistryUrmia University 57159 Urmia Iran
| | - Forugh Havasi
- Department of Chemistry, Faculty of SciencesUniversity of Kurdistan P.O. Box 66315‐416 Sanandaj Iran
| | - Michael Aalinejad
- Department of Organic Chemistry, Faculty of ChemistryUrmia University 57159 Urmia Iran
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6
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Yazdani-Elah-Abadi A, Simin N, Morekian R, Heydari-Dahoei H. Microwave-Promoted Facile and Rapid Access to Novel Spirooxindole-furo[2,3-c]pyrazole Derivatives Using Pyridinium Ylide-Assisted Domino Reaction. Polycycl Aromat Compd 2019. [DOI: 10.1080/10406638.2019.1570948] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
| | - Nasim Simin
- Department of Chemistry, Islamic Azad University, Tuyserkan, Iran
| | - Reza Morekian
- Department of Food Industry Engineering, Science and Arts University, Yazd, Iran
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7
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Enhanced Antibacterial Activity of Ent-Labdane Derivatives of Salvic Acid (7α-Hydroxy-8(17)-ent-Labden-15-Oic Acid): Effect of Lipophilicity and the Hydrogen Bonding Role in Bacterial Membrane Interaction. Molecules 2017. [PMID: 28644410 PMCID: PMC6152121 DOI: 10.3390/molecules22071039] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
In the present study, the antibacterial activity of several ent-labdane derivatives of salvic acid (7α-hydroxy-8(17)-ent-labden-15-oic acid) was evaluated in vitro against the Gram-negative bacterium Escherichia coli and the Gram-positive bacteria Staphylococcus aureus and Bacillus cereus. For all of the compounds, the antibacterial activity was expressed as the minimum inhibitory concentration (MIC) in liquid media and minimum inhibitory amount (MIA) in solid media. Structure activity relationships (SAR) were employed to correlate the effect of the calculated lipophilicity parameters (logPow) on the inhibitory activity. Employing a phospholipidic bilayer (POPG) as a bacterial membrane model, ent-labdane-membrane interactions were simulated utilizing docking studies. The results indicate that (i) the presence of a carboxylic acid in the C-15 position, which acted as a hydrogen-bond donor (HBD), was essential for the antibacterial activity of the ent-labdanes; (ii) an increase in the length of the acylated chain at the C-7 position improved the antibacterial activity until an optimum length of five carbon atoms was reached; (iii) an increase in the length of the acylated chain by more than five carbon atoms resulted in a dramatic decrease in activity, which completely disappeared in acyl chains of more than nine carbon atoms; and (iv) the structural factors described above, including one HBD at C-15 and a hexanoyloxi moiety at C-7, had a good fit to a specific lipophilic range and antibacterial activity. The lipophilicity parameter has a predictive characteristic feature on the antibacterial activity of this class of compounds, to be considered in the design of new biologically active molecules.
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Bingi C, Kale A, Nanubolu JB, Atmakur K. Simple approach to access tricyclic spiro dihydrofurans in a one-pot reaction. SYNTHETIC COMMUN 2017. [DOI: 10.1080/00397911.2017.1326141] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Chiranjeevi Bingi
- Crop Protection Chemicals Division, CSIR-Indian Institute of Chemical Technology, Hyderabad, India
| | - Ashok Kale
- Crop Protection Chemicals Division, CSIR-Indian Institute of Chemical Technology, Hyderabad, India
| | - Jagadeesh Babu Nanubolu
- Laboratory of X-ray Crystallography, CSIR-Indian Institute of Chemical Technology, Hyderabad, India
| | - Krishnaiah Atmakur
- Crop Protection Chemicals Division, CSIR-Indian Institute of Chemical Technology, Hyderabad, India
- Academy of Scientific and Innovative Research, CSIR-Indian Institute of Chemical Technology, Hyderabad, India
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9
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Echeverría J, Opazo J, Mendoza L, Urzúa A, Wilkens M. Structure-Activity and Lipophilicity Relationships of Selected Antibacterial Natural Flavones and Flavanones of Chilean Flora. Molecules 2017; 22:molecules22040608. [PMID: 28394271 PMCID: PMC6154607 DOI: 10.3390/molecules22040608] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Revised: 03/31/2017] [Accepted: 04/05/2017] [Indexed: 11/16/2022] Open
Abstract
In this study, we tested eight naturally-occurring flavonoids-three flavanones and five flavones-for their possible antibacterial properties against four Gram-positive and four Gram-negative bacteria. Flavonoids are known for their antimicrobial properties, and due their structural diversity; these plant-derived compounds are a good model to study potential novel antibacterial mechanisms. The lipophilicity and the interaction of antibacterial compounds with the cell membrane define the success or failure to access its target. Therefore, through the determination of partition coefficients in a non-polar/aqueous phase, lipophilicity estimation and the quantification of the antibacterial activity of different flavonoids, flavanones, and flavones, a relationship between these parameters was assessed. Active flavonoids presented diffusion coefficients between 9.4 × 10-10 and 12.3 × 10-10 m²/s and lipophilicity range between 2.0 to 3.3. Active flavonoids against Gram-negative bacteria showed a narrower range of lipophilicity values, compared to active flavonoids against Gram-positive bacteria, which showed a wide range of lipophilicity and cell lysis. Galangin was the most active flavonoid, whose structural features are the presence of two hydroxyl groups located strategically on ring A and the absence of polar groups on ring B. Methylation of one hydroxyl group decreases the activity in 3-O-methylgalangin, and methylation of both hydroxyl groups caused inactivation, as shown for 3,7-O-dimethylgalangin. In conclusion, the amphipathic features of flavonoids play a crucial role in the antibacterial activity. In these compounds, hydrophilic and hydrophobic moieties must be present and could be predicted by lipophilicity analysis.
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Affiliation(s)
- Javier Echeverría
- Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago 9170022, Chile.
| | - Julia Opazo
- Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago 9170022, Chile.
| | - Leonora Mendoza
- Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago 9170022, Chile.
| | - Alejandro Urzúa
- Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago 9170022, Chile.
| | - Marcela Wilkens
- Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago 9170022, Chile.
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10
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Synthesis and in vitro evaluation of leishmanicidal activity of 7-hydroxy-4-phenylcoumarin derivatives. Med Chem Res 2016. [DOI: 10.1007/s00044-016-1729-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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12
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Khurm M, Chaudhry BA, Uzair M, Janbaz KH. Antimicrobial, Cytotoxic, Phytotoxic and Antioxidant Potential of Heliotropium strigosum Willd. MEDICINES (BASEL, SWITZERLAND) 2016; 3:E20. [PMID: 28930129 PMCID: PMC5456253 DOI: 10.3390/medicines3030020] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 05/26/2016] [Revised: 07/19/2016] [Accepted: 07/21/2016] [Indexed: 11/17/2022]
Abstract
Background:Heliotropium strigosum Willd. (Chitiphal) is a medicinally important herb that belongs to the Boraginaceae family. Traditionally, this plant was used in the medication therapy of various ailments in different populations of the world. The aim of the study is to probe the therapeutic aspects of H. strigosum described in the traditional folklore history of medicines. Methods: In the present study, the dichloromethane crude extract of this plant was screened to explore the antimicrobial, cytotoxic, phytotoxic and antioxidant potential of H. strigosum. For antibacterial, antifungal and antioxidant activities, microplate alamar blue assay (MABA), agar tube dilution method and diphenyl picryl hydrazine (DPPH) radical-scavenging assay were used, respectively. The cytotoxic and phytotoxic potential were demonstrated by using brine shrimp lethality bioassay and Lemna minor assay. Results: The crude extract displayed positive cytotoxic activity in the brine shrimp lethality assay, with 23 of 30 shrimps dying at the concentration of 1000 µg/mL. It also showed moderate phytotoxic potential with percent inhibition of 50% at the concentration of 1000 µg/mL. The crude extract exhibited no significant antibacterial activity against Staphylococcus aureus, Shigella flexneri, Escherichia coli and Pseudomonas aeruginosa. Non-significant antifungal and radical scavenging activity was also shown by the dichloromethane crude extract. Conclusion: It is recommended that scientists focus on the identification and isolation of beneficial bioactive constituents with the help of advanced scientific methodologies that seems to be helpful in the synthesis of new therapeutic agents of desired interest.
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Affiliation(s)
- Muhammad Khurm
- Faculty of Pharmacy, Natural Product Chemistry Unit, Bahauddin Zakariya University, Multan 60800, Pakistan.
| | - Bashir A Chaudhry
- Faculty of Pharmacy, Natural Product Chemistry Unit, Bahauddin Zakariya University, Multan 60800, Pakistan.
| | - Muhammad Uzair
- Faculty of Pharmacy, Natural Product Chemistry Unit, Bahauddin Zakariya University, Multan 60800, Pakistan.
| | - Khalid H Janbaz
- Akson College of Pharmacy, Mirpur University of Science and Technology, Mirpur 10250, Pakistan.
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13
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Hiremathad A, Patil MR, K. R. C, Chand K, Santos MA, Keri RS. Benzofuran: an emerging scaffold for antimicrobial agents. RSC Adv 2015. [DOI: 10.1039/c5ra20658h] [Citation(s) in RCA: 129] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
The present article systematically gives a comprehensive review of current development of benzofuran-based compounds as antimicrobial agents and the perspectives that they hold for future research.
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Affiliation(s)
- Asha Hiremathad
- Centre for Nano and Material Sciences
- Jain University
- Jain Global Campus
- Bangalore 562112
- India
| | - Mahadeo R. Patil
- Centre for Nano and Material Sciences
- Jain University
- Jain Global Campus
- Bangalore 562112
- India
| | - Chethana K. R.
- Centre for Nano and Material Sciences
- Jain University
- Jain Global Campus
- Bangalore 562112
- India
| | - Karam Chand
- Centro de Química Estrutural
- Instituto Superior Técnico
- Universidade de Lisboa
- 1049-001 Lisboa
- Portugal
| | - M. Amelia Santos
- Centro de Química Estrutural
- Instituto Superior Técnico
- Universidade de Lisboa
- 1049-001 Lisboa
- Portugal
| | - Rangappa S. Keri
- Centre for Nano and Material Sciences
- Jain University
- Jain Global Campus
- Bangalore 562112
- India
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14
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Siddiqui I, Rahila, Shamim S, Rai P, Shireen, Waseem MA, Abumhdi AA. An InBr3 catalyzed one-pot three-component synthesis of functionalized spirodihydrofuran oxindoles via intramolecular alkyne carbonyl metathesis. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.09.122] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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15
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Synthesis and biological evaluation against Leishmania amazonensis of a series of alkyl-substituted benzophenones. Bioorg Med Chem 2013; 21:3114-9. [DOI: 10.1016/j.bmc.2013.03.045] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2013] [Revised: 03/11/2013] [Accepted: 03/19/2013] [Indexed: 11/23/2022]
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16
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Labib AA. Synthesis, Radioiodination and Biodistribution Evaluation of 5-(2-amimo-4-styryl pyrimidine-4-yl)-4-methoxybenzofuran-6-ol. ASIA OCEANIA JOURNAL OF NUCLEAR MEDICINE & BIOLOGY 2013; 1:32-8. [PMID: 27408840 PMCID: PMC4937670 DOI: 10.7508/aojnmb.2013.01.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
This study describes the organic synthesis of 5-(2-amimo-4-styryl pyrimidine-4-yl)-4-methoxy benzofuran-6-ol (SPBF) as an example of a benzofuran derivative used as a new series of amyloid imaging agents. These benzofuran derivatives may be useful amyloid imaging agents for detecting B-amyloid plagues in the brain of Alzheimer's disease. The precursor is 1-[6-hydroxy-4-methoxybenzofuran-5-yl]-phenyl butadiene ketone, which react with guanidine hydrochloride. The purification process was done via crystallization using solvent ethanol. The overall yield was 75% and the structure of the synthesized compound was confirmed by correct analytical and spectral data. Also, The synthesized compound was labeled with radioactive iodine -125 via electrophilic substitution reaction, in the presence of iodogen as an oxidizing agent, the labeling process was carried out at 95°C for 20min. The radiochemical yield was determined by using a thin layer chromatography and the yield was equal to 80%. Preliminary an in-vivo study examined normal mice after intravenous injection through the tail vein and the data showed the labeling compound was quickly cleared from most body organs. The radioiodinated compound showed high brain uptake. The results of this study suggest that radioiodinated (SPBF) may be useful as a brain imaging agents.
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Affiliation(s)
- Atteyat A. Labib
- Inshas Cyclotron Facility, Nuclear Research Center, Atomic Energy Authority, Cairo 13759, Egypt
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17
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Leishmanicidal, antiproteolytic and antioxidant evaluation of natural biflavonoids isolated from Garcinia brasiliensis and their semisynthetic derivatives. Eur J Med Chem 2012. [DOI: 10.1016/j.ejmech.2012.06.021] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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18
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Larghi EL, Operto MA, Torres R, Kaufman TS. Synthesis and classical pathway Complement inhibitory activity of C7-functionalized filifolinol derivatives, inspired in K-76 COOH. Eur J Med Chem 2012; 55:74-84. [DOI: 10.1016/j.ejmech.2012.07.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2012] [Revised: 06/29/2012] [Accepted: 07/02/2012] [Indexed: 11/27/2022]
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19
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Antagonistic activity of Eleutherine palmifolia Linn. ASIAN PACIFIC JOURNAL OF TROPICAL DISEASE 2012. [DOI: 10.1016/s2222-1808(12)60208-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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20
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Muñoz MA, Urzúa A, Echeverría J, Modak B, Joseph-Nathan P. Solid State Structure and Absolute Configuration of Filifolinol Acetate. Nat Prod Commun 2011. [DOI: 10.1177/1934578x1100600604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Careful reevaluation of the 1H and 13C NMR spectroscopic data of filifolinol acetate (4) led to the reassignment of the C-10 and C-11 signals, as well as the gem-dimethyl signals. Single crystal X-ray analysis provided an independent structural confirmation of 4, and comparison of the experimental vibrational circular dichroism spectrum with calculations performed using density functional theory provided the absolute configuration of this 3H-spiro-1-benzofuran-2,1′-cyclohexane and related molecules.
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Affiliation(s)
- Marcelo A. Muñoz
- Instituto de Ciéncias Químicas, Universidad Austral de Chile, Casilla 567, Valdivia, Chile
| | - Alejandro Urzúa
- Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Javier Echeverría
- Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Brenda Modak
- Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Pedro Joseph-Nathan
- Departamento de Química, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Apartado 14-740, México, D. F., 07000 México
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Pereira IO, Assis DM, Juliano MA, Cunha RL, Barbieri CL, do Sacramento LV, Marques MJ, dos Santos MH. Natural Products fromGarcinia brasiliensisasLeishmaniaProtease Inhibitors. J Med Food 2011; 14:557-62. [DOI: 10.1089/jmf.2010.0018] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Ivan O. Pereira
- Department of Pharmacy, Laboratory of Phytochemistry and Medicinal Chemistry, Federal University of Alfenas, Minas Gerais, Brazil
- Department of Pharmacy, Laboratory of Botany, São Paulo State University Julio de Mesquita Filho, Araraquara, São Paulo, Brazil
| | - Diego M. Assis
- Department of Biophysics, Federal University of São Paulo, São Paulo, Brazil
| | - Maria A. Juliano
- Department of Biophysics, Federal University of São Paulo, São Paulo, Brazil
| | | | - Clara L. Barbieri
- Department of Immunology, Microbiology and Parasitology, Federal University of São Paulo, São Paulo, Brazil
| | - Luis V.S. do Sacramento
- Department of Pharmacy, Laboratory of Botany, São Paulo State University Julio de Mesquita Filho, Araraquara, São Paulo, Brazil
| | - Marcos J. Marques
- Department of Biomedical Sciences, Laboratory of Molecular Biology, Federal University of Alfenas, Minas Gerais, Brazil
| | - Marcelo H. dos Santos
- Department of Pharmacy, Laboratory of Phytochemistry and Medicinal Chemistry, Federal University of Alfenas, Minas Gerais, Brazil
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22
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Monzote L, Cuesta-Rubio O, Matheeussen A, Van Assche T, Maes L, Cos P. Antimicrobial Evaluation of the Polyisoprenylated Benzophenones Nemorosone and Guttiferone A. Phytother Res 2011; 25:458-62. [DOI: 10.1002/ptr.3401] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2010] [Revised: 12/01/2010] [Accepted: 12/09/2010] [Indexed: 11/09/2022]
Affiliation(s)
- L. Monzote
- Department of Parasitology; Institute of Tropical Medicine ‘Pedro Kouri’; Havana City Cuba
| | - O. Cuesta-Rubio
- Department of Chemistry; Institute of Pharmacy and Food; Havana University; Cuba
| | - A. Matheeussen
- Laboratory for Microbiology, Parasitology and Hygiene (LMPH); Faculty of Pharmaceutical, Biomedical and Veterinary Sciences; Antwerp University; Belgium
| | - T. Van Assche
- Laboratory for Microbiology, Parasitology and Hygiene (LMPH); Faculty of Pharmaceutical, Biomedical and Veterinary Sciences; Antwerp University; Belgium
| | - L. Maes
- Laboratory for Microbiology, Parasitology and Hygiene (LMPH); Faculty of Pharmaceutical, Biomedical and Veterinary Sciences; Antwerp University; Belgium
| | - P. Cos
- Laboratory for Microbiology, Parasitology and Hygiene (LMPH); Faculty of Pharmaceutical, Biomedical and Veterinary Sciences; Antwerp University; Belgium
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23
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Pereira IO, Marques MJ, Pavan ALR, Codonho BS, Barbiéri CL, Beijo LA, Doriguetto AC, D'Martin EC, dos Santos MH. Leishmanicidal activity of benzophenones and extracts from Garcinia brasiliensis Mart. fruits. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2010; 17:339-345. [PMID: 19762221 DOI: 10.1016/j.phymed.2009.07.020] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2008] [Revised: 06/02/2009] [Accepted: 07/14/2009] [Indexed: 05/28/2023]
Abstract
Infections by protozoans of the genus Leishmania are the major worldwide health problem, with high endemicity in developing countries. The drugs of choice for the treatment of leishmaniasis are the pentavalent antimonials, which exert renal and cardiac toxicity. Thus, there is a strong need for safer and more effective treatments against leishmaniasis. The present study was designated to evaluate, by a bioguided assay, the leishmanicidal activity of extracts (hexane, ethyl-acetate and ethanolic) and molecules both obtained by means of extraction from pericarps of Garcinia brasiliensis fruits. The hexane extract presented the best activity on the extracellular (promastigotes) and intracellular (amastigotes) forms of Leishmania (L.) amazonensis, when compared to the other extracts. Based on these findings, this extract was fractionated by silica gel column chromatography, affording nine fractions then resulting in three purified prenylated benzophenones - 7-epi-clusianone (1), garciniaphenone (2) and guttiferone-a (3). They showed significant activity on Leishmania (L.) amazonensis, and little toxicity for mammalian cells. Structure-activity relationships were evaluated showing that the IC(50) value displayed is dependent of prenyl groups and phenolic hydroxyls number, and inversely proportional to the hydrophobicity. Our results are promising, showing that these compounds are biologically active on Leishmania (L.) amazonensis.
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Affiliation(s)
- I O Pereira
- Department of Pharmacy, Laboratory of Phytochemistry and Medicinal Chemistry, Federal University of Alfenas, MG, Brazil.
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Jeyaseelan S, Devarajegowda HC, Venkatarama G, Vinduvahini M, D’souza A. 1-(1-Benzofuran-2-yl)-3-(4-chloro-phen-yl)prop-2-en-1-one. Acta Crystallogr Sect E Struct Rep Online 2010; 66:o466. [PMID: 21579877 PMCID: PMC2979897 DOI: 10.1107/s1600536810003004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2010] [Accepted: 01/25/2010] [Indexed: 11/17/2022]
Abstract
In the title compound, C(17)H(11)ClO(2), the benzofuran ring system is almost planar (r.m.s. deviation = 0.011 Å) and forms a dihedral angle of 10.53 (6)° with the chloro-phenyl ring. No significant inter-molecular inter-actions are observed.
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Affiliation(s)
- S. Jeyaseelan
- Department of Physics, Yuvaraja’s College (Constituent College), University of Mysore, Mysore 570 005, Karnataka, India
| | - H. C. Devarajegowda
- Department of Physics, Yuvaraja’s College (Constituent College), University of Mysore, Mysore 570 005, Karnataka, India
| | - G. Venkatarama
- Department of Physics, Yuvaraja’s College (Constituent College), University of Mysore, Mysore 570 005, Karnataka, India
| | - M. Vinduvahini
- Department of Physics, Sri D. Devaraj urs. First Grade College, Hunsur 571 105, Karnataka, India
| | - Alphonsus D’souza
- Department of Chemistry, St. Philomena’s College, Mysore 570 015, Karnataka, India
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Sahu DP, Giri SK, Varshney V, Kumar S. Single-Pot Synthesis of Spiroannulated Dihydrofurans by Iodine–Ammonium Acetate–Mediated Reaction of Dimedone with Aldehydes. SYNTHETIC COMMUN 2009. [DOI: 10.1080/00397910902763938] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Devi Prasad Sahu
- a Medicinal and Process Chemistry Division , Central Drug Research Institute , Lucknow, India
| | - Santosh Kumar Giri
- a Medicinal and Process Chemistry Division , Central Drug Research Institute , Lucknow, India
| | - Vandana Varshney
- a Medicinal and Process Chemistry Division , Central Drug Research Institute , Lucknow, India
| | - Shailesh Kumar
- a Medicinal and Process Chemistry Division , Central Drug Research Institute , Lucknow, India
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