1
|
Teerapongpisan P, Monkantha T, Yimklan S, Mah SH, Gunter NV, Promnart P, Deachathai S, Maneerat T, Duangyod T, Charoensup R, Baka A, Andersen RJ, Laphookhieo S. Tetrahydroxanthene-1,3(2 H)-diones and Oxidized Hexadiene Derivatives from Uvaria leptopoda and Their Biological Activities. JOURNAL OF NATURAL PRODUCTS 2024; 87:1611-1617. [PMID: 38805684 PMCID: PMC11217936 DOI: 10.1021/acs.jnatprod.4c00248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 05/13/2024] [Accepted: 05/16/2024] [Indexed: 05/30/2024]
Abstract
The first phytochemical investigation of the twig extract of Uvaria leptopoda resulted in the isolation and identification of three new tetrahydroxanthene-1,3(2H)-diones, uvarialeptones A-C, two new oxidized hexadiene derivatives, uvarialeptols A and B, together with ten known compounds. Their structures were elucidated by spectroscopic techniques and mass spectrometry. Uvarialeptones A and B were unprecedented tetrahydroxanthene-1,3(2H)-dione dimers which exhibited a cyclobutane ring via [2 + 2] cycloaddition from uvarialeptone C and 9a-O-methyloxymitrone, respectively. The structure of uvarialeptone A was confirmed by X-ray diffraction analysis using Mo Kα radiation. Compound 3 inhibited NO production at an IC50 value of 6.7 ± 0.1 μM.
Collapse
Affiliation(s)
- Passakorn Teerapongpisan
- Center
of Chemical Innovation for Sustainability (CIS) and School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand
| | - Thanakorn Monkantha
- Center
of Chemical Innovation for Sustainability (CIS) and School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand
| | - Saranphong Yimklan
- Department
of Chemistry, Faculty of Science, Chiang
Mai University, Chiang Mai 50200, Thailand
| | - Siau Hui Mah
- School
of Biosciences, Faculty of Health and Medical Sciences, Taylor’s University, Lakeside Campus, 47500 Subang Jaya, Selangor, Malaysia
| | - Natalie Vivien Gunter
- School
of Biosciences, Faculty of Health and Medical Sciences, Taylor’s University, Lakeside Campus, 47500 Subang Jaya, Selangor, Malaysia
| | | | | | - Tharakorn Maneerat
- Center
of Chemical Innovation for Sustainability (CIS) and School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand
| | - Thidarat Duangyod
- Medicinal
Plant Innovation Center of Mae Fah Luang University and School of
Integrative Medicine, Mae Fah Luang University, Chiang Rai 57100, Thailand
| | - Rawiwan Charoensup
- Medicinal
Plant Innovation Center of Mae Fah Luang University and School of
Integrative Medicine, Mae Fah Luang University, Chiang Rai 57100, Thailand
| | | | - Raymond J. Andersen
- Departments
of Chemistry and Earth, Ocean & Atmospheric Sciences, University of British Columbia, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada
| | - Surat Laphookhieo
- Center
of Chemical Innovation for Sustainability (CIS) and School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand
| |
Collapse
|
2
|
Dos Santos ATL, de Araújo-Neto JB, Costa da Silva MM, Paulino da Silva ME, Carneiro JNP, Fonseca VJA, Coutinho HDM, Bandeira PN, Dos Santos HS, da Silva Mendes FR, Sales DL, Morais-Braga MFB. Synthesis of chalcones and their antimicrobial and drug potentiating activities. Microb Pathog 2023; 180:106129. [PMID: 37119940 DOI: 10.1016/j.micpath.2023.106129] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Revised: 04/24/2023] [Accepted: 04/27/2023] [Indexed: 05/01/2023]
Abstract
The increased resistance of microorganisms to antimicrobial drugs makes it necessary to search for new active compounds, such as chalcones. Their simple chemical structure makes them molecules easy to synthesize. Therefore, the aim of this study was to evaluate the antimicrobial and potentiating activity of antibiotics and antifungals by synthetic chalcones against strains of Escherichia coli, Staphylococcus aureus, Pseudomonas aeruginosa, Candida albicans and Candida tropicalis. The synthesis of chalcones was carried out by Claisen-Schimidt aldol condensation. Nuclear Magnetic Resonance (NMR) and Gas Chromatography Coupled to Mass Spectrometry (GC/MS) were also performed. Microbiological tests were performed by the broth microdilution method, using gentamicin, norfloxacin and penicillin as standard drugs for the antibacterial assay, and fluconazole for the antifungal assay. Three chalcones were obtained (1E,4E)-1,5-diphenylpenta-1,4-dien-3-one (DB-Acetone), (1E,3E,6E,8E)-1,9-diphenylnone-1,3,6,8-tetraen-5-one (DB-CNM), (1E,4E)-1,5-bis (4-methoxyphenyl) penta-1,4-dien-3-one (DB-Anisal). The compound DB-Acetone was able to inhibit P. aeruginosa ATCC 9027 at a concentration of 1.4 × 102 μM (32 μg/mL), while DB-CNM and DB-Anisal inhibited the growth of S. aureus ATCC 25923 at 17.88 × 102 μM and 2.71 × 101 μM (512 μg/mL and 8 μg/mL) respectively. In the combined activity, DB-Anisal was able to potentiate the effect of the three antibacterial drugs tested against E. coli 06, norfloxacin (128 for 4 μg/mL ±1) against P. aeruginosa 24 and penicillin (1,024 for 16 μg/mL ±1) against S. aureus 10. In antifungal assays, chalcones were not able to inhibit the growth of fungal strains tested. However, both showed potentiating activity with fluconazole, ranging from 8.17 x 10-1 μM (0.4909 μg/mL) to 2.35 μM (13.96 μg/mL). It is concluded that synthetic chalcones have antimicrobial potential, demonstrating good intrinsic activity against fungi and bacteria, in addition to potentiating the antibiotics and antifungal tested. Further studies are needed addressing the mechanisms of action responsible for the results found in this work.
Collapse
Affiliation(s)
| | | | | | | | | | | | | | | | | | | | - Débora Lima Sales
- Department of Biological Sciences, Regional University of Cariri, Crato, Ceara, Brazil
| | | |
Collapse
|
3
|
da Silva L, Donato IA, Gonçalves CAC, Scherf JR, dos Santos HS, Mori E, Coutinho HDM, da Cunha FAB. Antibacterial potential of chalcones and its derivatives against Staphylococcus aureus. 3 Biotech 2023; 13:1. [PMID: 36466769 PMCID: PMC9712905 DOI: 10.1007/s13205-022-03398-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Accepted: 10/12/2022] [Indexed: 12/02/2022] Open
Abstract
Chalcones are natural substances found in the metabolism of several botanical families. Their structure consists of 1,3-diphenyl-2-propen-1-one and they are characterized by having in their chains an α, β-unsaturated carbonyl system, two phenol rings and a three-carbon chain that unites them. In plants, Chalcones are mainly involved in the biosynthesis of flavonoids and isoflavonoids through the phenylalanine derivation. This group of substances has been shown to be a viable alternative for the investigation of its antibacterial potential, considering the numerous biological activities reported and the increase of the microbial resistance that concern global health agencies. Staphylococcus aureus is a bacterium that has stood out for its ability to adapt and develop resistance to a wide variety of drugs. This literature review aimed to highlight recent advances in the use of Chalcones and derivatives as antibacterial agents against S. aureus, focusing on research articles available on the Science Direct, Pub Med and Scopus data platforms in the period 2015-2021. It was constructed informative tables that provided an overview of which types of Chalcones are being studied more (Natural or Synthetic); its chemical name and main Synthesis Methodology. From the analysis of the data, it was observed that the compounds based on Chalcones have great potential in medicinal chemistry as antibacterial agents and that the molecular skeletons of these compounds as well as their derivatives can be easily obtained through substitutions in the A and B rings of Chalcones, in order to obtain the desired bioactivity. It was verified that Chalcones and derivatives are promising agents for combating the multidrug resistance of S. aureus to drugs. Supplementary Information The online version contains supplementary material available at 10.1007/s13205-022-03398-7.
Collapse
Affiliation(s)
- Larissa da Silva
- Laboratory of Semi-Arid Bioprospecting (LABSEMA), Department of Biological Chemistry, URCA, Crato, CE Brazil
| | - Isydorio Alves Donato
- Laboratory of Semi-Arid Bioprospecting (LABSEMA), Department of Biological Chemistry, URCA, Crato, CE Brazil
| | | | - Jackelyne Roberta Scherf
- Graduate Program in Pharmaceutical Sciences, Federal University of Pernambuco, UFPE, Recife, PE Brazil
| | - Hélcio Silva dos Santos
- Laboratory of Chemistry of Natural and Synthetic Product, State university of Ceará, UECE, Fortaleza, CE Brazil
| | - Edna Mori
- CECAPE, College of Dentistry, Juazeiro do Norte, CE 63024-015 Brazil
| | | | | |
Collapse
|
4
|
Silva J, Esmeraldo Rocha J, da Cunha Xavier J, Sampaio de Freitas T, Douglas Melo Coutinho H, Nogueira Bandeira P, Rodrigues de Oliveira M, Nunes da Rocha M, Machado Marinho E, de Kassio Vieira Monteiro N, Ribeiro LR, Róseo Paula Pessoa Bezerra de Menezes R, Machado Marinho M, Magno Rodrigues Teixeira A, Silva dos Santos H, Silva Marinho E. Antibacterial and antibiotic modifying activity of chalcone (2E)-1-(4′-aminophenyl)-3-(4-methoxyphenyl)-prop-2-en-1-one in strains of Staphylococcus aureus carrying NorA and MepA efflux pumps: In vitro and in silico approaches. Microb Pathog 2022; 169:105664. [DOI: 10.1016/j.micpath.2022.105664] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 06/19/2022] [Accepted: 06/28/2022] [Indexed: 01/11/2023]
|
5
|
Synthesis, structural and spectroscopic analysis, and antiproliferative activity of chalcone derivate (E)-1-(4-aminophenyl)-3-(benzo[b]thiophen-2-yl)prop‑2-en-1-one in Trypanosoma cruzi. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.132197] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
6
|
de Souza MA, de Castro KK, Almeida-Neto FW, Bandeira PN, Ferreira MK, Marinho MM, da Rocha MN, de Brito DH, Mendes FRDS, Rodrigues TH, de Oliveira MR, de Menezes JE, Barreto AC, Marinho ES, de Lima-Neto P, dos Santos HS, Teixeira AM. Structural and spectroscopic analysis, ADMET study, and anxiolytic-like effect in adult zebrafish (Danio rerio) of 4′-[(1E,2E)-1-(2-(2′,4′-dinitrophenyl)hydrazone-3-(4-methoxyphenyl)allyl)aniline. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.132064] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
7
|
Leal AL, Pinheiro DP, Barros-Nepomuceno FW, da Silva PT, Pessoa C, Almeida-Neto FW, Marinho ES, Barreto AC, Julião MS, de Paiva AS, Bandeira PN, de Lima-Neto P, dos Santos HS, Teixeira AM. Structural and spectroscopic analysis and evaluation of cytotoxic activity of 2-hydroxychalcones against human cancer cell lines. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.131135] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
|
8
|
Spectroscopic analysis by NMR, FT-Raman, ATR-FTIR, and UV-Vis, evaluation of antimicrobial activity, and in silico studies of chalcones derived from 2-hydroxyacetophenone. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130647] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
9
|
Rocha JE, de Freitas TS, da Cunha Xavier J, Pereira RLS, Junior FNP, Nogueira CES, Marinho MM, Bandeira PN, de Oliveira MR, Marinho ES, Teixeira AMR, Dos Santos HS, Coutinho HDM. Antibacterial and antibiotic modifying activity, ADMET study and molecular docking of synthetic chalcone (E)-1-(2-hydroxyphenyl)-3-(2,4-dimethoxy-3-methylphenyl)prop-2-en-1-one in strains of Staphylococcus aureus carrying NorA and MepA efflux pumps. Biomed Pharmacother 2021; 140:111768. [PMID: 34058442 DOI: 10.1016/j.biopha.2021.111768] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Revised: 05/20/2021] [Accepted: 05/24/2021] [Indexed: 11/26/2022] Open
Abstract
A large number of infections are caused by multi-resistant bacteria worldwide, adding up to a figure of around 700,000 deaths per year. Because of that many strategies are being developed in order to combat the resistance of microorganisms to drugs, in recent times, chalcones have been studied for this purpose. Chalcones are known as α, β-unsaturated ketones, characterized by having the presence of two aromatic rings that are joined by a three-carbon chain, they are a class of compounds considered an exceptional model due to chemical simplicity and a wide variety of biological activities, which include anticancer, anti-inflammatory, antioxidants, antimicrobials, anti-tuberculosis, anti-HIV, antimalarial, anti-allergic, antifungal, antibacterial, and antileishmanial. The objective of this work was evaluate the antibacterial and antibiotic modifying activity of chalcone (E)-1-(2-hydroxyphenyl)-3-(2,4-dimethoxy-3-methylphenyl)prop-2-en-1-one against the bacteria Staphylococcus aureus carrying a NorA and MepA efflux pump. The results showed that chalcone was able to synergistically modulate the action of Norfloxacin and Ethidium Bromide against the bacteria Staphylococcus aureus 1199B and K2068, respectively. The theoretical physicochemical and pharmacokinetic properties of chalcone showed that the chalcone did not present a severe risk of toxicity such as genetic mutation or cardiotoxicity, constituting a good pharmacological active ingredient.
Collapse
Affiliation(s)
- Janaína Esmeraldo Rocha
- Departamento de Química Biológica, Laboratório de Microbiologia e Biologia Molecular - LMBM, Universidade Regional do Cariri, Crato, Ceará, Brazil
| | - Thiago Sampaio de Freitas
- Departamento de Química Biológica, Laboratório de Microbiologia e Biologia Molecular - LMBM, Universidade Regional do Cariri, Crato, Ceará, Brazil
| | - Jayze da Cunha Xavier
- Departamento de Química Biológica, Laboratório de Microbiologia e Biologia Molecular - LMBM, Universidade Regional do Cariri, Crato, Ceará, Brazil
| | - Raimundo Luiz Silva Pereira
- Departamento de Química Biológica, Laboratório de Microbiologia e Biologia Molecular - LMBM, Universidade Regional do Cariri, Crato, Ceará, Brazil
| | | | - Carlos Emídio Sampaio Nogueira
- Departamento de Química Biológica, Laboratório de Microbiologia e Biologia Molecular - LMBM, Universidade Regional do Cariri, Crato, Ceará, Brazil
| | - Márcia Machado Marinho
- Faculdade de Educação, Ciência e Letras de Iguatu, Universidade Estadual do Ceará, Iguatu, Ceará, Brazil
| | - Paulo Nogueira Bandeira
- Universidade Estadual do Vale do Acaraú, Centro de Ciencias Exatas e Tecnologia, Sobral, Ceará, Brazil
| | | | - Emmanuel Silva Marinho
- Universidade Estadual do Ceará, Faculdade de Filosofia Dom Aureliano Matos, Limoeiro do Norte, Ceará, Brazil
| | - Alexandre Magno Rodrigues Teixeira
- Departamento de Química Biológica, Laboratório de Microbiologia e Biologia Molecular - LMBM, Universidade Regional do Cariri, Crato, Ceará, Brazil
| | - Hélcio Silva Dos Santos
- Departamento de Química Biológica, Laboratório de Microbiologia e Biologia Molecular - LMBM, Universidade Regional do Cariri, Crato, Ceará, Brazil; Universidade Estadual do Vale do Acaraú, Centro de Ciencias Exatas e Tecnologia, Sobral, Ceará, Brazil; Universidade Estadual do Ceará, Centro de Ciências e Tecnologia, Programa de Pós-Graduação Ciências Naturais, Fortaleza, Ceará, Brazil
| | - Henrique Douglas Melo Coutinho
- Departamento de Química Biológica, Laboratório de Microbiologia e Biologia Molecular - LMBM, Universidade Regional do Cariri, Crato, Ceará, Brazil.
| |
Collapse
|
10
|
da Cunha Xavier J, Almeida-Neto FWDQ, da Silva PT, de Sousa AP, Marinho ES, Marinho MM, Rocha JE, Freitas PR, de Araújo ACJ, Freitas TS, Nogueira CES, de Lima-Neto P, Bandeira PN, Teixeira AMR, Coutinho HDM, dos Santos HS. Structural characterization, DFT calculations, ADMET studies, antibiotic potentiating activity, evaluation of efflux pump inhibition and molecular docking of chalcone (E)-1-(2-hydroxy-3,4,6-trimethoxyphenyl)-3-(4-methoxyphenyl)prop-2-en-1-one. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129692] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
|
11
|
da Silva P, da Cunha Xavier J, Freitas T, Oliveira M, Coutinho H, Leal A, Barreto H, Bandeira P, Nogueira C, Sena D, Almeida-Neto F, Marinho E, Santos H, Teixeira A. Synthesis, spectroscopic characterization and antibacterial evaluation by chalcones derived of acetophenone isolated from Croton anisodontus Müll.Arg. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129403] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
|
12
|
Xavier JDC, Almeida-Neto FWQ, da Silva PT, Marinho ES, Ferreira MKA, Magalhães FEA, Nogueira CES, Bandeira PN, de Menezes JESA, Teixeira AMR, Santos HSD. Structural characterization, electronic properties, and anxiolytic-like effect in adult zebrafish (Danio rerio) of cinnamaldehyde chalcone. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128954] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
13
|
Potentiation of antibiotic activity by chalcone (E)-1-(4′-aminophenyl)-3-(furan-2-yl)-prop-2-en-1-one against gram-positive and gram-negative MDR strains. Microb Pathog 2020; 148:104453. [DOI: 10.1016/j.micpath.2020.104453] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Revised: 06/28/2020] [Accepted: 08/11/2020] [Indexed: 12/14/2022]
|
14
|
Popova SA, Pavlova EV, Chukicheva IY. Synthesis of substituted chalcones based on 1,3-dihydroxy-4-isobornylbenzene. Russ Chem Bull 2020. [DOI: 10.1007/s11172-020-3022-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
15
|
Structural, vibrational and electrochemical analysis and antibiotic activity study of chalcone (2E)-1-(3ʹ,-methoxy-4ʹ,-hydroxyphenyl)-3-(3-nitrophenyl)prop-2-en-1-one. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128358] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
16
|
Freitas TSD, Xavier JDC, Pereira RLS, Rocha JE, Muniz DF, da Silva PT, da Hora JP, dos Santos HS, Bandeira PN, Nogueira CES, Teixeira AMR, Coutinho HDM. Direct antibacterial and antibiotic resistance modulatory activity of chalcones synthesized from the natural product 2-hydroxy-3,4,6-trimethoxyacetophenone. FEMS Microbiol Lett 2020; 367:5881301. [DOI: 10.1093/femsle/fnaa124] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Accepted: 07/27/2020] [Indexed: 01/20/2023] Open
Abstract
ABSTRACT
Antibiotic for clinical use lose its effectiveness over time due to bacterial resistance. In this work, four chalcones with modifications in their ligands were synthesized from the natural product 2-hydroxy-3,4,6-trimethoxyacetophenone, characterized by nuclear magnetic resonance (NMR) and infrared spectroscopy, and tested in bacterial models to investigate the direct and modifiers effects of the antibiotic activity of these four novel chalcones. The tests followed the broth microdilution methodology to obtain the Minimum Inhibitory Concentration (MIC). The MIC/8 of the products were used in the resistance reversion test. The chalcone 2 showed the best result in terms of direct activity, with MIC 645 μg/mL for Staphylococcus aureus and 812 μg/mL for Escherichia coli. While, for the bacterial resistance reversal test, the chalcones presented several synergistic interactions, being that chalcone 4 had the best interaction with the tested antibiotics. It was found that the type of ligand, as well as its position in the ring, interferes in the modulation of the antibiotic activity. Our results show that chalcones are strong candidates to be used as antibacterial drug or in combination with antibiotics for the treatment of infections caused by multidrug-resistant (MDR) strains.
Collapse
Affiliation(s)
- Thiago Sampaio de Freitas
- Departamento de Química Biológica, Universidade Regional do Cariri, CEP 63105-000, Crato, Ceará, Brasil
| | - Jayze da Cunha Xavier
- Departamento de Química Biológica, Universidade Regional do Cariri, CEP 63105-000, Crato, Ceará, Brasil
| | - Raimundo L S Pereira
- Departamento de Química Biológica, Universidade Regional do Cariri, CEP 63105-000, Crato, Ceará, Brasil
| | - Janaina E Rocha
- Departamento de Química Biológica, Universidade Regional do Cariri, CEP 63105-000, Crato, Ceará, Brasil
| | - Dédora F Muniz
- Departamento de Química Biológica, Universidade Regional do Cariri, CEP 63105-000, Crato, Ceará, Brasil
| | - Priscila T da Silva
- Departamento de Química Biológica, Universidade Regional do Cariri, CEP 63105-000, Crato, Ceará, Brasil
| | - João P da Hora
- Centro de Ciências Exatas e Tecnologia, Universidade Estadual Vale do Acaraú, CEP 62.040-370, Campus Betânia, Sobral-CE, Brasil
| | - Hélcio S dos Santos
- Departamento de Química Biológica, Universidade Regional do Cariri, CEP 63105-000, Crato, Ceará, Brasil
- Centro de Ciências Exatas e Tecnologia, Universidade Estadual Vale do Acaraú, CEP 62.040-370, Campus Betânia, Sobral-CE, Brasil
| | - Paulo N Bandeira
- Centro de Ciências Exatas e Tecnologia, Universidade Estadual Vale do Acaraú, CEP 62.040-370, Campus Betânia, Sobral-CE, Brasil
| | - Carlos E S Nogueira
- Departamento de Química Biológica, Universidade Regional do Cariri, CEP 63105-000, Crato, Ceará, Brasil
| | - Alexandre M R Teixeira
- Departamento de Química Biológica, Universidade Regional do Cariri, CEP 63105-000, Crato, Ceará, Brasil
| | - Henrique D M Coutinho
- Departamento de Química Biológica, Universidade Regional do Cariri, CEP 63105-000, Crato, Ceará, Brasil
| |
Collapse
|
17
|
Structural, Vibrational and Electrochemical Analysis and Antibacterial Potential of Isomeric Chalcones Derived from Natural Acetophenone. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10144713] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Background: Chalcones are part of a family of small phenolic compounds that are being extensively studied for presenting a diversity of molecular structures and biological activities. In this paper, two chalcones, (E)-1-(2-hydroxy-3,4,6-trimethoxyphenyl)-3-(3-nitrophenyl)prop-2-en-1-one (1), (E)-1-(2-hydroxy-3,4,6-trimethoxyphenyl)-3-(4-nitrophenyl)prop-2-en-1-one (2), were synthesized by Claisen–Schmidt condensation. Methods: The molecular structures of these chalcones were determined by Nuclear Magnetic Resonance and characterized by infrared, Raman spectroscopy, and electrochemical analysis at room temperature. Vibrational wavenumbers were predicted using Functional Density Theory (DFT) calculations, and their normal modes were analyzed in terms of potential energy distribution (PED). Besides this, DFT calculations were performed to obtain the molecular orbitals and their quantum descriptors. The UV-Vis absorption spectrum of the synthesized chalcones was measured and compared with each other. In addition, analyses of antimicrobial activity and modulation of antibiotic resistance were carried out to assess the antibacterial potential of these chalcones. Results: The vibrational spectra of polycrystalline chalcones obtained by ATR-FTIR, FT-Raman and DFT calculations allowed a complete assignment of the vibrational modes, and revealed the quantum chemical parameters. Both chalcones did not show good responses when associated with the antibiotics Ciprofloxacin and Cephalexin against S. aureus 10 and E. coli 06 strains. However, a significant potentiating of the Gentamicin activity against S. aureus 10 and E. col 06 strains was observed for chalcone 2. On the other hand, when associated with Norfloxacin, an antagonistic effect was observed. The results found for EtBr suggest that, although the tested chalcones behave as efflux pump inhibitors, probably inhibiting other efflux pumps, they were not able to inhibit NorA. Thus, these synthetic chalcones are not recommended for use in association with Norfloxacin against strains of S. aureus 1199-B that overexpress the NorA gene. Conclusions: Spectroscopic data confirmed the structure of the chalcones, and chalcone 2 showed potential as an adjuvant in antibiotic therapy.
Collapse
|
18
|
Menezes J, Santos HD, Ferreira M, Magalhães F, da Silva D, Bandeira P, Saraiva G, Pessoa O, Ricardo N, Cruz B, Teixeira A. Preparation, structural and spectroscopic characterization of chitosan membranes containing allantoin. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2019.126968] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|