1
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Lourenço EMG, da Silva F, das Neves AR, Bonfá IS, Ferreira AMT, Menezes ACG, da Silva MEC, Dos Santos JT, Martines MAU, Perdomo RT, Toffoli-Kadri MC, G Barbosa E, Saba S, Beatriz A, Rafique J, de Arruda CCP, de Lima DP. Investigation of the Potential Targets behind the Promising and Highly Selective Antileishmanial Action of Synthetic Flavonoid Derivatives. ACS Infect Dis 2023; 9:2048-2061. [PMID: 37772925 DOI: 10.1021/acsinfecdis.3c00336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/30/2023]
Abstract
Leishmaniases are among the neglected tropical diseases that still cause devastating health, social, and economic consequences to more than 350 million people worldwide. Despite efforts to combat these vector-borne diseases, their incidence does not decrease. Meanwhile, current antileishmanial drugs are old and highly toxic, and safer presentations are unaffordable to the most severely affected human populations. In a previous study by our research group, we synthesized 17 flavonoid derivatives that demonstrated impressive inhibition capacity against rCPB2.8, rCPB3, and rH84Y. These cysteine proteases are highly expressed in the amastigote stage, the target form of the parasite. However, although these compounds have been already described in the literature, until now, the amastigote effect of any of these molecules has not been proven. In this work, we aimed to deeply analyze the antileishmanial action of this set of synthetic flavonoid derivatives by correlating their ability to inhibit cysteine proteases with the action against the parasite. Among all the synthesized flavonoid derivatives, 11 of them showed high activity against amastigotes of Leishmania amazonensis, also providing safety to mammalian host cells. Furthermore, the high production of nitric oxide by infected cells treated with the most active cysteine protease B (CPB) inhibitors confirms a potential immunomodulatory response of macrophages. Besides, considering flavonoids as multitarget drugs, we also investigated other potential antileishmanial mechanisms. The most active compounds were selected to investigate another potential biological pathway behind their antileishmanial action using flow cytometry analysis. The results confirmed an oxidative stress after 48 h of treatment. These data represent an important step toward the validation of CPB as an antileishmanial target, as well as aiding in new drug discovery studies based on this protease.
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Affiliation(s)
- Estela M G Lourenço
- Laboratório de Síntese e Transformação de Moléculas Orgânicas -SINTMOL, Instituto de Química, Universidade Federal de Mato Grosso do Sul, Av. Senador Filinto Muller, Campo Grande, 79074-460 MS, Brazil
| | - Fernanda da Silva
- Laboratório de Parasitologia Humana, Instituto de Biociências, Universidade Federal de Mato Grosso do Sul, Campo Grande, 79070-900, MS, Brazil
| | - Amarith R das Neves
- Laboratório de Parasitologia Humana, Instituto de Biociências, Universidade Federal de Mato Grosso do Sul, Campo Grande, 79070-900, MS, Brazil
| | - Iluska S Bonfá
- Laboratório de Farmacologia e Inflamação, Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição, Universidade Federal de Mato Grosso do Sul, Campo Grande, 79074-460 MS, Brazil
| | - Alda Maria T Ferreira
- Laboratório de Imunologia, Biologia Molecular e Bioensaios Instituto de Biociências, Universidade Federal de Mato Grosso do Sul, Campo Grande, 79070-900 MS, Brazil
| | - Adriana C G Menezes
- Biotério Central, Universidade Federal de Mato Grosso do Sul, Campo Grande, 79070-900 MS, Brazil
| | - Maria E C da Silva
- Laboratório de Síntese e Transformação de Moléculas Orgânicas -SINTMOL, Instituto de Química, Universidade Federal de Mato Grosso do Sul, Av. Senador Filinto Muller, Campo Grande, 79074-460 MS, Brazil
| | - Jéssica T Dos Santos
- Laboratório de Síntese e Transformação de Moléculas Orgânicas -SINTMOL, Instituto de Química, Universidade Federal de Mato Grosso do Sul, Av. Senador Filinto Muller, Campo Grande, 79074-460 MS, Brazil
| | - Marco A U Martines
- Instituto de Química, Universidade Federal de Mato Grosso do Sul, Av. Senador Filinto Muller, Campo Grande, 79074-460 MS, Brazil
| | - Renata T Perdomo
- Laboratório de Biologia Molecular e Cultura de Células, Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição, Universidade Federal de Mato Grosso do Sul, Campo Grande, 79070-900 MS, Brazil
| | - Mônica C Toffoli-Kadri
- Laboratório de Farmacologia e Inflamação, Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição, Universidade Federal de Mato Grosso do Sul, Campo Grande, 79074-460 MS, Brazil
| | - Euzébio G Barbosa
- Laboratório de Química Farmacêutica Computacional, Departamento de Farmácia, Universidade Federal do Rio Grande do Norte, Natal, 59012-570, RN, Brazil
| | - Sumbal Saba
- Laboratório de Síntese Sustentável e Organocalcogênio - LabSO, Instituto de Química, Universidade Federal de Goiás-UFG, Goiânia, 74690-900 GO, Brazil
| | - Adilson Beatriz
- Laboratório de Síntese e Transformação de Moléculas Orgânicas -SINTMOL, Instituto de Química, Universidade Federal de Mato Grosso do Sul, Av. Senador Filinto Muller, Campo Grande, 79074-460 MS, Brazil
| | - Jamal Rafique
- Laboratório de Síntese e Transformação de Moléculas Orgânicas -SINTMOL, Instituto de Química, Universidade Federal de Mato Grosso do Sul, Av. Senador Filinto Muller, Campo Grande, 79074-460 MS, Brazil
- Laboratório de Síntese Sustentável e Organocalcogênio - LabSO, Instituto de Química, Universidade Federal de Goiás-UFG, Goiânia, 74690-900 GO, Brazil
| | - Carla C P de Arruda
- Laboratório de Parasitologia Humana, Instituto de Biociências, Universidade Federal de Mato Grosso do Sul, Campo Grande, 79070-900, MS, Brazil
| | - Dênis P de Lima
- Laboratório de Síntese e Transformação de Moléculas Orgânicas -SINTMOL, Instituto de Química, Universidade Federal de Mato Grosso do Sul, Av. Senador Filinto Muller, Campo Grande, 79074-460 MS, Brazil
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2
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Pereira de Oliveira Borlot JR, Schlittler Dos Santos L, Schwarzt Sampaio GJ, Santos Borges A, Rodrigues RP, de Cássia Ribeiro Gonçalves R, Bezerra Dos Santos R, Kitagawa RR. Synthesis, Docking Studies and Evaluation of Chalcones as Anti-Helicobacter pylori and antitumoral Agents. Chem Biodivers 2023; 20:e202301066. [PMID: 37646700 DOI: 10.1002/cbdv.202301066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 08/30/2023] [Indexed: 09/01/2023]
Abstract
Helicobacter pylori colonizes the gastric epithelium of 50 % of world population and it is the main etiological agent of human chronic gastritis, peptic ulcer, and gastric cancer. In this study, we synthesized and characterized a series of 14 chalcones and evaluated their anti-H. pylori, NO inhibition (in vitro and in silico), and AGS cells cytotoxic effects. Compounds 3b and 3h showed MIC of 8 μg/mL. We observed structure-activity relationships, mainly related to the influence of methoxy substituent at C-2 (3b) and the nitro group at C-4 (3h) in chalcone scaffold. The fourteen chalcones inhibited the NO production in LPS-stimulated macrophages and showed potential for interaction on the active site of the iNOS enzyme. Finally, 3b and 3h showed the highest selectivity to the AGS cell lines. Thus, ours results suggest 3b and 3h as potential candidates for design of new and effective agents against H. pylori and related diseases.
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Affiliation(s)
- Jessica Rodrigues Pereira de Oliveira Borlot
- Graduate Program of Pharmaceutical Sciences, Health Sciences Center, Federal University of Espírito Santo, Avenida Marechal Campos 1468, Bonfim, 29047-105, Vitória, ES, Brazil
- Graduate Program of Chemistry, Exact Sciences Center, Federal University of Espírito Santo, Avenida Fernando Ferrari 514, Goiabeiras, 29075-910, Vitória, ES, Brazil
| | - Luna Schlittler Dos Santos
- Department of Chemistry, Exact Sciences Center, Federal University of Espírito Santo, Avenida Fernando Ferrari 514, Goiabeiras, 29075-910, Vitória, ES, Brazil
| | - Guilherme José Schwarzt Sampaio
- Graduate Program of Pharmaceutical Sciences, Health Sciences Center, Federal University of Espírito Santo, Avenida Marechal Campos 1468, Bonfim, 29047-105, Vitória, ES, Brazil
| | - Augusto Santos Borges
- Department of Pharmaceutical Sciences, Health Sciences Center, Federal University of Espírito Santo, Avenida Marechal Campos 1468, Bonfim, 29047-105, Vitória, ES, Brazil
| | - Ricardo Pereira Rodrigues
- Graduate Program of Pharmaceutical Sciences, Health Sciences Center, Federal University of Espírito Santo, Avenida Marechal Campos 1468, Bonfim, 29047-105, Vitória, ES, Brazil
| | - Rita de Cássia Ribeiro Gonçalves
- Graduate Program of Pharmaceutical Sciences, Health Sciences Center, Federal University of Espírito Santo, Avenida Marechal Campos 1468, Bonfim, 29047-105, Vitória, ES, Brazil
- Department of Pharmaceutical Sciences, Health Sciences Center, Federal University of Espírito Santo, Avenida Marechal Campos 1468, Bonfim, 29047-105, Vitória, ES, Brazil
| | - Reginaldo Bezerra Dos Santos
- Department of Chemistry, Exact Sciences Center, Federal University of Espírito Santo, Avenida Fernando Ferrari 514, Goiabeiras, 29075-910, Vitória, ES, Brazil
| | - Rodrigo Rezende Kitagawa
- Graduate Program of Pharmaceutical Sciences, Health Sciences Center, Federal University of Espírito Santo, Avenida Marechal Campos 1468, Bonfim, 29047-105, Vitória, ES, Brazil
- Department of Pharmaceutical Sciences, Health Sciences Center, Federal University of Espírito Santo, Avenida Marechal Campos 1468, Bonfim, 29047-105, Vitória, ES, Brazil
- Graduate Program of Chemistry, Exact Sciences Center, Federal University of Espírito Santo, Avenida Fernando Ferrari 514, Goiabeiras, 29075-910, Vitória, ES, Brazil
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Flavonoid Derivatives as New Potent Inhibitors of Cysteine Proteases: An Important Step toward the Design of New Compounds for the Treatment of Leishmaniasis. Microorganisms 2023; 11:microorganisms11010225. [PMID: 36677517 PMCID: PMC9866541 DOI: 10.3390/microorganisms11010225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 01/09/2023] [Accepted: 01/12/2023] [Indexed: 01/18/2023] Open
Abstract
Leishmaniasis is a neglected tropical disease, affecting more than 350 million people globally. However, there is currently no vaccine available against human leishmaniasis, and current treatment is hampered by high cost, side-effects, and painful administration routes. It has become a United Nations goal to end leishmaniasis epidemics by 2030, and multitarget drug strategy emerges as a promising alternative. Among the multitarget compounds, flavonoids are a renowned class of natural products, and a structurally diverse library can be prepared through organic synthesis, which can be tested for biological effectiveness. In this study, we synthesised 17 flavonoid analogues using a scalable, easy-to-reproduce, and inexpensive method. All synthesised compounds presented an impressive inhibition capacity against rCPB2.8, rCPB3, and rH84Y enzymes, which are highly expressed in the amastigote stage, the target form of the parasite. Compounds 3c, f12a, and f12b were found to be effective against all isoforms. Furthermore, their intermolecular interactions were also investigated through a molecular modelling study. These compounds were highly potent against the parasite and demonstrated low cytotoxic action against mammalian cells. These results are pioneering, representing an advance in the investigation of the mechanisms behind the antileishmanial action of flavonoid derivatives. Moreover, compounds have been shown to be promising leads for the design of other cysteine protease inhibitors for the treatment of leishmaniasis diseases.
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4
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In Melting Points We Trust: A Review on the Misguiding Characterization of Multicomponent Reactions Adducts and Intermediates. Molecules 2022; 27:molecules27217552. [DOI: 10.3390/molecules27217552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 10/25/2022] [Accepted: 11/02/2022] [Indexed: 11/06/2022] Open
Abstract
We discuss herein the problems associated with using melting points to characterize multicomponent reactions’ (MCRs) products and intermediates. Although surprising, it is not rare to find articles in which these MCRs final adducts (or their intermediates) are characterized solely by comparing melting points with those available from other reports. A brief survey among specialized articles highlights serious and obvious problems with this practice since, for instance, cases are found in which as many as 25 quite contrasting melting points have been attributed to the very same MCR adduct. Indeed, it seems logical to assume that the inherent non-confirmatory nature of melting points could be vastly misleading as a protocol for structural confirmation, but still many publications (also in the Q1 and Q2 quartiles) insist on using it. This procedure contradicts best practices in organic synthesis, and articles fraught with limitations and misleading conclusions have been published in the MCRs field. The drawbacks inherent to this practice are indeed serious and have misguided MCRs advances. We therefore suggest some precautions aimed at avoiding future confusions.
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5
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Madbouly EA, Lashine ESM, Al-Karmalawy AA, Sebaiy MM, Pratsinis H, Kletsas D, Metwally K. Design and synthesis of novel quinazolinone–chalcone hybrids as potential apoptotic candidates targeting caspase-3 and PARP-1: in vitro, molecular docking, and SAR studies. NEW J CHEM 2022. [DOI: 10.1039/d2nj04053k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Novel quinazolinone–chalcone hybrids as potential apoptotic candidates targeting caspase-3 and PARP-1.
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Affiliation(s)
- Eman A. Madbouly
- Department of Medicinal Chemistry, Faculty of Pharmacy, Zagazig University, Zagazig, Egypt
| | - El-Sayed M. Lashine
- Department of Medicinal Chemistry, Faculty of Pharmacy, Zagazig University, Zagazig, Egypt
| | - Ahmed A. Al-Karmalawy
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Ahram Canadian University, 6th of October City, Giza 12566, Egypt
| | - Mahmoud M. Sebaiy
- Department of Medicinal Chemistry, Faculty of Pharmacy, Zagazig University, Zagazig, Egypt
| | - Harris Pratsinis
- Laboratory of Cell Proliferation and Ageing, Institute of Biosciences and Applications, National Centre of Scientific Research “Demokritos”, Athens, Greece
| | - Dimitris Kletsas
- Laboratory of Cell Proliferation and Ageing, Institute of Biosciences and Applications, National Centre of Scientific Research “Demokritos”, Athens, Greece
| | - Kamel Metwally
- Department of Medicinal Chemistry, Faculty of Pharmacy, Zagazig University, Zagazig, Egypt
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Tabuk, Tabuk, Kingdom of Saudi Arabia
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6
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Mostafa SM, Aly AA, Bräse S, Mohamed AH. An efficient approach for the synthesis of novel series of 1,3-dihydrospiro[indene-2,6ʹ-[1,3]thiazine] derivatives. MONATSHEFTE FUR CHEMIE 2021. [DOI: 10.1007/s00706-021-02878-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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7
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Nia FM, Farahi M, Karami B, Keshavarz R. Synthesis of Chalcone Derivatives by Phthalhydrazide-Functionalized TiO2-Coated Nano-Fe3O4 as a New Heterogeneous Catalyst. LETT ORG CHEM 2021. [DOI: 10.2174/1570178617999200807214103] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Phthalhydrazide immobilized on TiO2-coated nano Fe3O4 (Fe3O4-P) was synthesized and
characterized by FT-IR, XRD, SEM, EDS and VSM analysis. The resulting magnetic nanocatalyst was
used as a catalyst for the synthesis of chalcone derivatives which affords the desired products in good
to excellent yields. This catalyst can be isolated readily after completion of the reaction by an external
magnetite field and reused several times without significant loss of activity.
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Affiliation(s)
- Forough Motamedi Nia
- Department of Chemistry, Yasouj University, Yasouj, Zip Code: 75918-74831 P.O. Box 353, Iran
| | - Mahnaz Farahi
- Department of Chemistry, Yasouj University, Yasouj, Zip Code: 75918-74831 P.O. Box 353, Iran
| | - Bahador Karami
- Department of Chemistry, Yasouj University, Yasouj, Zip Code: 75918-74831 P.O. Box 353, Iran
| | - Raziyeh Keshavarz
- Department of Chemistry, Yasouj University, Yasouj, Zip Code: 75918-74831 P.O. Box 353, Iran
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8
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Temperini A, Ballarotto M, Siciliano C. Chemoselective and metal-free reduction of α,β-unsaturated ketones by in situ produced benzeneselenol from O-( tert-butyl) Se-phenyl selenocarbonate. RSC Adv 2020; 10:33706-33717. [PMID: 35519049 PMCID: PMC9056720 DOI: 10.1039/d0ra07128e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Accepted: 08/28/2020] [Indexed: 12/04/2022] Open
Abstract
The carbon–carbon double bond of arylidene acetones and chalcones can be selectively reduced with benzeneselenol generated in situ by reacting O-(tert-butyl) Se-phenyl selenocarbonate with hydrochloric acid in ethanol. This mild, metal-free and experimentally simple reduction procedure displays considerable functional-group compatibility, products are obtained in good to excellent yields, and the use of toxic Se/CO mixture and NaSeH, or the smelly and air-sensitive benzeneselenol, is avoided. The carbon–carbon double bond of arylidene acetones and chalcones can be selectively reduced with benzeneselenol generated in situ by reacting O-(tert-butyl) Se-phenyl selenocarbonate with hydrochloric acid in ethanol.![]()
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Affiliation(s)
- Andrea Temperini
- Dipartimento di Scienze Farmaceutiche
- Università di Perugia
- Consorzio C.I.N.M.P.I.S
- 06123 Perugia
- Italy
| | - Marco Ballarotto
- Dipartimento di Scienze Farmaceutiche
- Università di Perugia
- Consorzio C.I.N.M.P.I.S
- 06123 Perugia
- Italy
| | - Carlo Siciliano
- Dipartimento di Farmacia e Scienze della Salute e della Nutrizione
- Università della Calabria
- Cosenza
- Italy
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9
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Cáceres-Castillo D, Carballo RM, Quijano-Quiñones R, Mirón-López G, Graniel-Sabido M, Moo-Puc RE, Mena-Rejón GJ. Synthesis, in vitro antigiardial activity, SAR analysis and docking study of substituted chalcones. Med Chem Res 2019. [DOI: 10.1007/s00044-019-02492-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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10
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Khalil KD, Riyadh SM, Gomha SM, Ali I. Synthesis, characterization and application of copper oxide chitosan nanocomposite for green regioselective synthesis of [1,2,3]triazoles. Int J Biol Macromol 2019; 130:928-937. [PMID: 30844456 DOI: 10.1016/j.ijbiomac.2019.03.019] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Revised: 02/17/2019] [Accepted: 03/02/2019] [Indexed: 10/27/2022]
Abstract
Chitosan copper (II) oxide nanocomposite was synthesized, characterized and used to synthesize [1,2,3]triazoles. Nanocomposite was characterized by using FTIR, XRD, FESEM, and EDS techniques, which reflected rough morphology. The powerful catalytic activity of hybrid nanocomposite was utilized to synthesize chalcones (3a-p) in relatively high yields (82%-98%) and multicomponent regio-selective cycloaddition of chalones, aryl halides (4), and sodium azide to afford the expected N-2-aryl[1,2,3]triazoles (5a-h) (80%-95% yield) rather than N-1-aryl[1,2,3]-triazoles (6a-h). The performance of nanomaterial was optimized by several variables. The capability of the nanocomposite was compared with previous work and the nanocomposite was found more efficient, economic and reproducible. The hybrid nanocomposite could be easily isolated form the reaction mixture and recycled four times without any significant loss of its catalytic activity. The reported catalyst is an inexpensive for good yields of the triazoles and may be used at industrial production for the reported compounds.
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Affiliation(s)
- Khaled D Khalil
- Department of Chemistry, Faculty of Science, Taibah University, Yanbu 46423, Saudi Arabia; Department of Chemistry, Faculty of Science, Cairo University, Giza 12613, Egypt
| | - Sayed M Riyadh
- Department of Chemistry, Faculty of Science, Taibah University, Al-Madinah Al-Munawarah 30002, Saudi Arabia; Department of Chemistry, Faculty of Science, Cairo University, Giza 12613, Egypt
| | - Sobhi M Gomha
- Department of Chemistry, Faculty of Science, Cairo University, Giza 12613, Egypt; Department of Chemistry, Faculty of Science, Islamic University in Almadinah Almonawara, Almadinah Almonawara, 42351, Saudi Arabia
| | - Imran Ali
- Department of Chemistry, Faculty of Science, Taibah University, Al-Madinah Al-Munawarah 30002, Saudi Arabia; Department of Chemistry, Jamia Millia Islamia, (Central University), New Delhi, India.
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11
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Díaz-Carrillo JT, Díaz-Camacho SP, Delgado-Vargas F, Rivero IA, López-Angulo G, Sarmiento-Sánchez JI, Montes-Avila J. Synthesis of leading chalcones with high antiparasitic, against Hymenolepis nana, and antioxidant activities. BRAZ J PHARM SCI 2018. [DOI: 10.1590/s2175-97902018000317343] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Affiliation(s)
| | - Sylvia Páz Díaz-Camacho
- Autonomous University of Sinaloa, Mexico; Graduate Program in Biomedical Science of the FCQB-UAS, Mexico
| | - Francisco Delgado-Vargas
- Autonomous University of Sinaloa, Mexico; Graduate Program in Food Science and Technology of the FCQB-UAS, Mexico
| | | | | | | | - Julio Montes-Avila
- Autonomous University of Sinaloa, Mexico; Graduate Program in Biomedical Science of the FCQB-UAS, Mexico
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12
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Synthesis and biological evaluation of a library of hybrid derivatives as inhibitors of influenza virus PA-PB1 interaction. Eur J Med Chem 2018; 157:743-758. [PMID: 30142611 DOI: 10.1016/j.ejmech.2018.08.032] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Revised: 07/03/2018] [Accepted: 08/11/2018] [Indexed: 11/21/2022]
Abstract
The limited treatment options against influenza virus along with the growing public health concerns regarding the continuous emergence of drug-resistant viruses make essential the development of new anti-flu agents with novel mechanisms of action. One of the most attractive targets is the interaction between two subunits of the RNA-dependent RNA polymerase, PA and PB1. Herein we report the rational design of hybrid compounds starting from a 3-cyano-4,6-diphenylpyridine scaffold recently identified as disruptor of PA-PB1 interactions. Guided by the previously reported SAR data, a library of amino acid derivatives was synthesized. The biological evaluation led to the identification of new PA-PB1 inhibitors, that do not show appreciable toxicity. Molecular modeling shed further lights on the inhibition mechanism of these compounds.
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13
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Ahmed RI, Osman EEA, Awadallah FM, El-Moghazy SM. Design, synthesis and molecular docking of novel diarylcyclohexenone and diarylindazole derivatives as tubulin polymerization inhibitors. J Enzyme Inhib Med Chem 2016; 32:176-188. [PMID: 27771966 PMCID: PMC6009925 DOI: 10.1080/14756366.2016.1244532] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
New target compounds were designed as inhibitors of tubulin polymerization relying on using two types of ring B models (cyclohexenone and indazole) to replace the central ring in colchicine. Different functional groups (R1) were attached to manipulate their physicochemical properties and/or their biological activity. The designed compounds were assessed for their antitumor activity on HCT-116 and MCF-7 cancer cell lines. Compounds 4b, 5e and 5f exhibited comparable or higher potency than colchicine against colon HCT-116 and MCF-7 tumor cells. The mechanism of the antitumor activity was investigated through evaluating the tubulin inhibition potential of the active compounds. Compounds 4b, 5e and 5f showed percentage inhibition of tubulin in both cell line homogenates ranging from 79.72% to 89.31%. Cell cycle analysis of compounds 4b, 5e and 5f revealed cell cycle arrest at G2/M phase. Molecular docking revealed the binding mode of these new compounds into the colchicine binding site of tubulin.
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Affiliation(s)
- Riham I Ahmed
- a Department of Pharmaceutical Chemistry, Faculty of Pharmacy , Nahda University in Beni Suef , Kornish Al Nile , Beni Suef , Egypt
| | - Essam Eldin A Osman
- b Department of Pharmaceutical Chemistry, Faculty of Pharmacy , Cairo University , Cairo , Egypt
| | - Fadi M Awadallah
- b Department of Pharmaceutical Chemistry, Faculty of Pharmacy , Cairo University , Cairo , Egypt
| | - Samir M El-Moghazy
- b Department of Pharmaceutical Chemistry, Faculty of Pharmacy , Cairo University , Cairo , Egypt
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14
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Biotechnological methods for chalcone reduction using whole cells of Lactobacillus, Rhodococcus and Rhodotorula strains as a way to produce new derivatives. Appl Microbiol Biotechnol 2016; 100:8371-84. [PMID: 27209040 DOI: 10.1007/s00253-016-7607-4] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Revised: 04/10/2016] [Accepted: 05/02/2016] [Indexed: 10/21/2022]
Abstract
Microbial strains of the genera Dietzia, Micrococcus, Pseudomonas, Rhodococcus, Gordonia, Streptomyces, Pseudomonas, Bacillus, Penicillium, Rhodotorula and Lactobacillus were screened for the ability to convert chalcones. Synthesis of chalcones was performed by the Claisen-Schmidt reaction. There were three groups of chalcones obtained as the products, which included the derivatives containing 4-substituted chalcone, 2'-hydroxychalcone and 4'-methoxychalcone. The B ring of the chalcones was substituted in the para position with different groups, such as halide, hydroxyl, nitro, methyl, ethyl and ethoxy one. The structure-activity relationship of the tested chalcones in biotransformation processes was studied. It has been proven that Gram-positive bacterial strains Rhodococcus and Lactobacillus catalyzed reduction of C=C bond in the chalcones to give respective dihydrochalcones. The strain Rhodotorula rubra AM 82 transformed chalcones into dihydrochalcones and respective secondary alcohols. These results suggest that the probiotic strain of Lactobacillus can be used for biotransformations of chalcones, which has not been described before. The structure of new metabolites 14a and 15b were established as 4-ethoxy-4'-methoxydihydrochalcone and 3-(4-bromophenyl)-1-(4'-O-methylphenyl)-2-propan-1-ol, respectively, which was confirmed by (1)H NMR and (13)C NMR analysis.
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Stompor M, Żarowska B. Antimicrobial Activity of Xanthohumol and Its Selected Structural Analogues. Molecules 2016; 21:molecules21050608. [PMID: 27187329 PMCID: PMC6272900 DOI: 10.3390/molecules21050608] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Revised: 04/27/2016] [Accepted: 05/05/2016] [Indexed: 12/11/2022] Open
Abstract
The objective of this study was to evaluate the antimicrobial activity of structural analogues of xanthohumol 1, a flavonoid compound found in hops (Humulus lupulus). The agar-diffusion method using filter paper disks was applied. Biological tests performed for selected strains of Gram-positive (Staphylococcus aureus) and Gram-negative (Escherichia coli) bacteria, fungi (Alternaria sp.), and yeasts (Rhodotorula rubra, Candida albicans) revealed that compounds with at least one hydroxyl group—all of them have it at the C-4 position—demonstrated good activity. Our research showed that the strain S. aureus was more sensitive to chalcones than to the isomers in which the heterocyclic ring C is closed (flavanones). The strain R. rubra was moderately sensitive to only one compound: 4-hydroxy-4’-methoxychalcone 8. Loss of the hydroxyl group in the B-ring of 4’-methoxychalcones or its replacement by a halogen atom (−Cl, −Br), nitro group (−NO2), ethoxy group (−OCH2CH3), or aliphatic substituent (−CH3, −CH2CH3) resulted in the loss of antimicrobial activity towards both R. rubra yeast and S. aureus bacteria. Xanthohumol 1, naringenin 5, and chalconaringenin 7 inhibited growth of S. aureus, whereas 4-hydroxy-4′-methoxychalcone 8 was active towards two strains: S. aureus and R. rubra.
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Affiliation(s)
- Monika Stompor
- Department of Chemistry, University of Environmental and Life Sciences, Norwida 25, 50-375 Wrocław, Poland.
- Centre for Innovative Research in Medical and Natural Sciences, Faculty of Medicine, University of Rzeszów, Warzywna 1a, 35-310 Rzeszów, Poland.
| | - Barbara Żarowska
- Department of Biotechnology and Food Microbiology, University of Environmental and Life Sciences, Chełmońskiego 37/41, 51-630 Wrocław, Poland.
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Azam A, Peerzada MN, Ahmad K. Parasitic diarrheal disease: drug development and targets. Front Microbiol 2015; 6:1183. [PMID: 26617574 PMCID: PMC4621754 DOI: 10.3389/fmicb.2015.01183] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2015] [Accepted: 10/12/2015] [Indexed: 12/23/2022] Open
Abstract
Diarrhea is the manifestation of gastrointestinal infection and is one of the major causes of mortality and morbidity specifically among the children of less than 5 years age worldwide. Moreover, in recent years there has been a rise in the number of reports of intestinal infections continuously in the industrialized world. These are largely related to waterborne and food borne outbreaks. These occur by the pathogenesis of both prokaryotic and eukaryotic organisms like bacteria and parasites. The parasitic intestinal infection has remained mostly unexplored and under assessed in terms of therapeutic development. The lack of new drugs and the risk of resistance have led us to carry out this review on drug development for parasitic diarrheal diseases. The major focus has been depicted on commercially available drugs, currently synthesized active heterocyclic compounds and unique drug targets, that are vital for the existence and growth of the parasites and can be further exploited for the search of therapeutically active anti-parasitic agents.
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Affiliation(s)
- Amir Azam
- Medicinal Chemistry Laboratory, Department of Chemistry, Jamia Millia IslamiaNew Delhi, India
| | - Mudasir N. Peerzada
- Medicinal Chemistry Laboratory, Department of Chemistry, Jamia Millia IslamiaNew Delhi, India
| | - Kamal Ahmad
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia IslamiaNew Delhi, India
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Tan CX, Schrader KK, Khan IA, Rimando AM. Activities of wogonin analogs and other flavones against Flavobacterium columnare. Chem Biodivers 2015; 12:259-72. [PMID: 25676507 DOI: 10.1002/cbdv.201400181] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2014] [Indexed: 11/05/2022]
Abstract
In our on-going pursuit to discover natural products and natural product-based compounds to control the bacterial species Flavobacterium columnare, which causes columnaris disease in channel catfish (Ictalurus punctatus), we synthesized flavone and chalcone analogs, and evaluated these compounds, along with flavonoids from natural sources, for their antibacterial activities against two isolates of F. columnare (ALM-00-173 and BioMed) using a rapid bioassay. The flavonoids chrysin (1a), 5,7-dihydroxy-4'-methoxyflavone (11), isorhamnetin (26), luteolin (27), and biochanin A (29), and chalcone derivative 8b showed strong antibacterial activities against F. columnare ALM-00-173 based on minimum inhibition concentration (MIC) results. Flavonoids 1a, 8, 11, 13 (5,4'-dihydroxy-7-methoxyflavone), 26, and 29 exhibited strong antibacterial activities against F. columnare BioMed based upon MIC results. The 24-h 50% inhibition concentration (IC50 ) results revealed that 27 and 29 were the most active compounds against F. columnare ALM-00-173 (IC50 of 7.5 and 8.5 mg/l, resp.), while 26 and 29 were the most toxic compound against F. columnare BioMed (IC50 of 9.2 and 3.5 mg/l, resp.). These IC50 results were lower than those obtained for wogonin against F. columnare ALM-00-173 and F. columnare BioMed (28.4 and 5.4 mg/l, resp.). However, based on MIC results, none of the compounds evaluated in this study were as active as wogonin (MIC 0.3 mg/l for each F. columnare isolate). Further modification of the wogonin structure to enhance antibacterial is of interest.
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Affiliation(s)
- Cheng-Xia Tan
- Zhejiang University of Technology, College of Chemical Engineering and Materials Science, Hangzhou 310014, P. R. China; U.S. Department of Agriculture, Agricultural Research Service, Natural Products Utilization Research Unit, P.O. Box 1848, University, Mississippi 38677-1848, USA, (phone: +1-6629151037; fax: +1-6629151035)
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Evranos-Aksöz B, Baysal İ, Yabanoğlu-Çiftçi S, Djikic T, Yelekçi K, Uçar G, Ertan R. Synthesis and Screening of Human Monoamine Oxidase-A Inhibitor Effect of New 2-Pyrazoline and Hydrazone Derivatives. Arch Pharm (Weinheim) 2015; 348:743-56. [DOI: 10.1002/ardp.201500212] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2015] [Revised: 07/17/2015] [Accepted: 07/21/2015] [Indexed: 12/24/2022]
Affiliation(s)
- Begüm Evranos-Aksöz
- Analysis and Control Laboratories of General Directorate of Pharmaceuticals and Pharmacy; Ministry of Health of Turkey; Sıhhiye Ankara Turkey
| | - İpek Baysal
- Department of Biochemistry, Faculty of Pharmacy; Hacettepe University; Sıhhiye Ankara Turkey
| | - Samiye Yabanoğlu-Çiftçi
- Department of Biochemistry, Faculty of Pharmacy; Hacettepe University; Sıhhiye Ankara Turkey
| | - Teodora Djikic
- Department of Bioinformatics and Genetics (Head) Cibali Campus, Faculty of Engineering and Natural Sciences; Kadir Has University; Fatih Istanbul Turkey
| | - Kemal Yelekçi
- Department of Bioinformatics and Genetics (Head) Cibali Campus, Faculty of Engineering and Natural Sciences; Kadir Has University; Fatih Istanbul Turkey
| | - Gülberk Uçar
- Department of Biochemistry, Faculty of Pharmacy; Hacettepe University; Sıhhiye Ankara Turkey
| | - Rahmiye Ertan
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy; Ankara University; Tandogan Ankara Turkey
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Barakat A, Al-Majid AM, Soliman SM, Mabkhot YN, Ali M, Ghabbour HA, Fun HK, Wadood A. Structural and spectral investigations of the recently synthesized chalcone (E)-3-mesityl-1-(naphthalen-2-yl) prop-2-en-1-one, a potential chemotherapeutic agent. Chem Cent J 2015; 9:35. [PMID: 26106444 PMCID: PMC4477317 DOI: 10.1186/s13065-015-0112-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2014] [Accepted: 06/08/2015] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Chalcones (1,3-diaryl-2-propen-1-ones, represent an important subgroup of the polyphenolic family, which have shown a wide spectrum of medical and industrial application. Due to their redundancy in plants and ease of preparation, this category of molecules has inspired considerable attention for potential therapeutic uses. They are also effective in vivo as anti-tumor promoting, cell proliferating inhibitors and chemo preventing agents. RESULTS Synthesis and molecular structure investigation of (E)-3-mesityl-1-(naphthalen-2-yl) prop-2-en-1-one (3) is reported. The structure of the title compound 3 is confirmed by X-ray crystallography. The optimized molecular structure of the studied compound is calculated using DFT B3LYP/6-311G (d,p) method. The calculated geometric parameters are in good agreement with the experimental data obtained from our reported X-ay structure. The calculated IR fundamental bands were assigned and compared with the experimental data. The electronic spectra of the studied compound have been calculated using the time dependant density functional theory (TD-DFT). The longest wavelength band is due to H → L (79 %) electronic transition which belongs to π-π* excitation. The (1)H- and (13)C-NMR chemical shifts were calculated using gauge independent atomic orbitals (GIAO) method, which showed good correlations with the experimental data (R(2) = 0.9911-0.9965). The natural bond orbital (NBO) calculations were performed to predict the natural atomic charges at different atomic sites. The molecular electrostatic potential (MEP) was used to visualize the charge distribution on the molecule. Molecular docking results suggest that the compound might exhibit inhibitory activity against GPb and may act as potential anti-diabetic compound. CONCLUSIONS (E)-3-Mesityl-1-(naphthalen-2-yl) prop-2-en-1-one single crystal is grown and characterized by single crystal X-ray diffraction, FT-IR, UV-vis, DFT and optimized geometrical parameters are close to the experimental bond lengths and angles. Molecular stability was successfully analyzed using NBO and electron delocalization is confirmed by MEP. Prediction of Activity Spectra Analysis of the title compound, predicts anti-diabetic activity with probability to have an active value of 0.348. Graphical Abstract(E)-3-Mesityl-1-(naphthalen-2-yl) prop-2-en-1-one: a crystal structure and computational studies.
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Affiliation(s)
- Assem Barakat
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, 11451 Riyadh, Saudi Arabia ; Department of Chemistry, Faculty of Science, Alexandria University, P.O. Box 426, 21321 Alexandria, Ibrahimia Egypt
| | - Abdullah Mohammed Al-Majid
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, 11451 Riyadh, Saudi Arabia
| | - Saied M Soliman
- Department of Chemistry, Faculty of Science, Alexandria University, P.O. Box 426, 21321 Alexandria, Ibrahimia Egypt
| | - Yahia Nasser Mabkhot
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, 11451 Riyadh, Saudi Arabia
| | - M Ali
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, 11451 Riyadh, Saudi Arabia
| | - Hazem A Ghabbour
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P.O. Box 2457, 11451 Riyadh, Saudi Arabia
| | - Hoong-Kun Fun
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P.O. Box 2457, 11451 Riyadh, Saudi Arabia ; X-Ray Crystallography Unit, School of Physics, Universiti Sains Malaysia, 11800 USM Penang, Malaysia
| | - Abdul Wadood
- Department of Biochemistry, Abdul Wali Khan University Mardan, 23200 Mardan, Pakistan
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Antimycobacterial and anti-inflammatory activities of substituted chalcones focusing on an anti-tuberculosis dual treatment approach. Molecules 2015; 20:8072-93. [PMID: 25951004 PMCID: PMC6272185 DOI: 10.3390/molecules20058072] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2015] [Revised: 04/23/2015] [Accepted: 04/24/2015] [Indexed: 11/17/2022] Open
Abstract
Tuberculosis (TB) remains a serious public health problem aggravated by the emergence of M. tuberculosis (Mtb) strains resistant to multiple drugs (MDR). Delay in TB treatment, common in the MDR-TB cases, can lead to deleterious life-threatening inflammation in susceptible hyper-reactive individuals, encouraging the discovery of new anti-Mtb drugs and the use of adjunctive therapy based on anti-inflammatory interventions. In this study, a series of forty synthetic chalcones was evaluated in vitro for their anti-inflammatory and antimycobacterial properties and in silico for pharmacokinetic parameters. Seven compounds strongly inhibited NO and PGE2 production by LPS-stimulated macrophages through the specific inhibition of iNOS and COX-2 expression, respectively, with compounds 4 and 5 standing out in this respect. Four of the seven most active compounds were able to inhibit production of TNF-α and IL-1β. Chalcones that were not toxic to cultured macrophages were tested for antimycobacterial activity. Eight compounds were able to inhibit growth of the M. bovis BCG and Mtb H37Rv strains in bacterial cultures and in infected macrophages. Four of them, including compounds 4 and 5, were active against a hypervirulent clinical Mtb isolate as well. In silico analysis of ADMET properties showed that the evaluated chalcones displayed satisfactory pharmacokinetic parameters. In conclusion, the obtained data demonstrate that at least two of the studied chalcones, compounds 4 and 5, are promising antimycobacterial and anti-inflammatory agents, especially focusing on an anti-tuberculosis dual treatment approach.
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Singh R, Rawat P, Baboo V, Kumar Y. Spectroscopic and quantum chemical correlation for structural evaluation, chemical reactivity and non-linear optical property investigation of two chalcone having pyrrole moiety: A comparative study. J Mol Struct 2015. [DOI: 10.1016/j.molstruc.2014.12.062] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Samimi HA, Salehi E, Dadvar F. N-bromosuccinimide/cerium Ammonium Nitrate: An Efficient Reagent for Stereo-controlled Deamination of Ketoaziridines. JOURNAL OF CHEMICAL RESEARCH 2014. [DOI: 10.3184/174751914x14176157994656] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
An efficient and novel method for the deamination of trans-1-alkyl (H or benzoyl)-2-aroyl aziridines in a completely stereo-controlled reaction in the presence of N-bromosuccinimide/cerium (IV) ammonium nitrate is described. In comparison with the previous reported work, this reaction reveals a substituent-reactivity relationship and important role for the substituent on C1 and C2 in determining whether deamination or oxidation reaction takes place.
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Affiliation(s)
- Heshmat Allah Samimi
- Department of Chemistry, Faculty of Sciences, Shahrekord University, PO Box 115, Shahrekord, Iran
| | - Elham Salehi
- Department of Chemistry, Faculty of Sciences, Shahrekord University, PO Box 115, Shahrekord, Iran
| | - Farkhondeh Dadvar
- Department of Chemistry, Faculty of Sciences, Shahrekord University, PO Box 115, Shahrekord, Iran
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Bai XG, Xu CL, Zhao SS, He HW, Wang YC, Wang JX. Synthesis and cytotoxic evaluation of alkoxylated chalcones. Molecules 2014; 19:17256-78. [PMID: 25353380 PMCID: PMC6271338 DOI: 10.3390/molecules191117256] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2014] [Revised: 09/26/2014] [Accepted: 10/17/2014] [Indexed: 01/03/2023] Open
Abstract
A series of chalcones a1–20 bearing a 4-OMe groups on the A-ring were initially synthesized and their anticancer activities towards HepG2 cells evaluated. Subsequently, a series of chalcones b1–42 bearing methoxy groups at the 2' and 6'-positions of the B-ring were synthesized and their anticancer activities towards five human cancer cell lines (HepG2, HeLa, MCF-7, A549 and SW1990) and two non-tumoral human cell lines evaluated. The results showed that six compounds (b6, b8, b11, b16, b18, b22, b23 and b29) displayed promising activities, with compounds b22 and b29 in particular showing higher levels of activity than etoposide against all five cancer cell lines. Compound b29 showed a promising SI value compared with both HMLE and L02 (2.1–6.5 fold in HMLE and > 33 > 103.1 fold in L02, respectively).
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Affiliation(s)
- Xiao-Guang Bai
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China.
| | - Chang-Liang Xu
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China.
| | - Shuang-Shuang Zhao
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China.
| | - Hong-Wei He
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China.
| | - Yu-Cheng Wang
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China.
| | - Ju-Xian Wang
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China.
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O(2)-dependent efficacy of novel piperidine- and piperazine-based chalcones against the human parasite Giardia intestinalis. Antimicrob Agents Chemother 2013; 58:543-9. [PMID: 24217695 DOI: 10.1128/aac.00990-13] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Giardia intestinalis is the most frequent protozoan agent of intestinal diseases worldwide. Though commonly regarded as an anaerobic pathogen, it preferentially colonizes the fairly oxygen-rich mucosa of the proximal small intestine. Therefore, when testing new potential antigiardial drugs, O2 should be taken into account, since it also reduces the efficacy of metronidazole, the gold standard drug against giardiasis. In this study, 46 novel chalcones were synthesized by microwave-assisted Claisen-Schmidt condensation, purified, characterized by high-resolution mass spectrometry, (1)H and (13)C nuclear magnetic resonance, and infrared spectroscopy, and tested for their toxicity against G. intestinalis under standard anaerobic conditions. As a novel approach, compounds showing antigiardial activity under anaerobiosis were also assayed under microaerobic conditions, and their selectivity against parasitic cells was assessed in a counterscreen on human epithelial colorectal adenocarcinoma cells. Among the tested compounds, three [30(a), 31(e), and 33] were more effective in the presence of O2 than under anaerobic conditions and killed the parasite 2 to 4 times more efficiently than metronidazole under anaerobiosis. Two of them [30(a) and 31(e)] proved to be selective against parasitic cells, thus representing potential candidates for the design of novel antigiardial drugs. This study highlights the importance of testing new potential antigiardial agents not only under anaerobic conditions but also at low, more physiological O2 concentrations.
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Loghmani-Khouzani H, Tamjidi P, Mohammadpoor-Baltork I, Yaeghoobi M, Rahman NA, Khosropour AR, Moghadam M, Tangestaninejad S, Mirkhani V, Habibi MH, Kashima A, Suzuki T. Efficient and Eco-friendly Syntheses of 1,5-Benzothiazepines and 1,5-Benzodiazepines Catalyzed by [Hmim][NO3] under Mild Conditions. J Heterocycl Chem 2013. [DOI: 10.1002/jhet.1827] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
| | - Panteha Tamjidi
- Catalysis Division, Department of Chemistry; University of Isfahan; Isfahan 81746-73441 Iran
| | | | - Marzieh Yaeghoobi
- Department of Chemistry; University of Malaya; 50603 Kuala Lumpur Malaysia
| | | | - Ahmad Reza Khosropour
- Catalysis Division, Department of Chemistry; University of Isfahan; Isfahan 81746-73441 Iran
| | - Majid Moghadam
- Catalysis Division, Department of Chemistry; University of Isfahan; Isfahan 81746-73441 Iran
| | - Shahram Tangestaninejad
- Catalysis Division, Department of Chemistry; University of Isfahan; Isfahan 81746-73441 Iran
| | - Valiolah Mirkhani
- Catalysis Division, Department of Chemistry; University of Isfahan; Isfahan 81746-73441 Iran
| | - Mohammad Hossein Habibi
- Catalysis Division, Department of Chemistry; University of Isfahan; Isfahan 81746-73441 Iran
| | - Ayana Kashima
- Department of Chemistry, Faculty of Science; Okayama University; Tsushima-naka 3-1-1 Okayama 700-8530 Japan
| | - Takayoshi Suzuki
- Department of Chemistry, Faculty of Science; Okayama University; Tsushima-naka 3-1-1 Okayama 700-8530 Japan
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Samimi HA, Kiyani H, Shams Z. Stereo-controlled Deamination of Ketoaziridines Using Ph3P/I2. JOURNAL OF CHEMICAL RESEARCH 2013. [DOI: 10.3184/174751913x13646666428217] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
PPh3/I2 is an efficient reagent for the stereo-controlled deamination of non-activated aziridines, N–H and N-alkyl aziridines, using. The method works gives the corresponding trans-alkenes from both cis and trans-aziridines. A plausible mechanism is proposed for the ring opening and deamination of keto-aziridines in the presence of Ph3P/I2.
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Affiliation(s)
- Heshmat Allah Samimi
- Department of Chemistry, Faculty of Sciences, Shahrekord University, PO Box 115, Shahrekord, Iran
| | - Hamzeh Kiyani
- School of Chemistry, Damghan University, Damghan, 36715-364, Iran
| | - Zahra Shams
- Department of Chemistry, Faculty of Sciences, Shahrekord University, PO Box 115, Shahrekord, Iran
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Qian W, Zhang L, Sun H, Jiang H, Liu H. Microwave-Assisted One-Step Synthesis of AcetophenonesviaPalladium-Catalyzed Regioselective Arylation of Vinyloxytrimethylsilane. Adv Synth Catal 2012. [DOI: 10.1002/adsc.201200334] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Riadi Y, Abrouki Y, Mamouni R, El Haddad M, Routier S, Guillaumet G, Lazar S. New eco-friendly animal bone meal catalysts for preparation of chalcones and aza-Michael adducts. Chem Cent J 2012; 6:60. [PMID: 22721409 PMCID: PMC3536715 DOI: 10.1186/1752-153x-6-60] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2012] [Accepted: 06/11/2012] [Indexed: 11/10/2022] Open
Abstract
Abstract Two efficient reactions were successfully carried out using Animal Bone Meal (ABM) and potassium fluoride or sodium nitrate doped ABMs as new heterogeneous catalysts under very mild conditions. After preparation and characterization of the catalysts, we first report their use in a simple and convenient synthesis of various chalcones by Claisen–Schmidt condensation and then in an aza-Michael addition involving several synthesized chalcones with aromatic amines. All the reactions were carried out at room temperature in methanol; the chalcone synthesis was also achieved in water environment under microwave irradiation. Doping ABM enhances the rate and yield at each reaction. Catalytic activities are discussed and the ability to re-use the ABM is demonstrated. Results For Claisen–Schmidt the use of ABM alone, yields never exceeded 17%. In each entry, KF/ABM and NaNO3/ABM (79-97%) gave higher yields than using ABM alone under thermic condition. Also the reaction proceeded under microwave irradiation in good yields (72-94% for KF/ABM and 81-97% for NaNO3/ABM) and high purity. For aza-Michael addition the use of ABM doped with KF or NaNO3 increased the catalytic activity remarkably. The very high yields could be noted (84-95% for KF/ABM and 81-94% for NaNO3/ABM). Conclusion The present method is an efficient and selective procedure for the synthesis of chalcones an aza-Michael adducts. The ABM and doped ABMs are a new, inexpensive and attractive solid supports which can contribute to the development of catalytic processes and reduced environmental problems.
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Affiliation(s)
- Yassine Riadi
- Laboratoire de Biochimie, Environnement & Agroalimentaire, URAC 36, Université Hassan II Mohammedia-Casablanca, Mohammedia, BP 146, 20650, Morocco.
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Samimi HA, Shams Z, Momeni AR. Deamination of cis and trans-aziridines using diethyl thiourea and iodine. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2012. [DOI: 10.1007/s13738-012-0094-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Chemli M, Haj Said A, Fave JL, Barthou C, Majdoub M. Synthesis and chemical modification of new luminescent substituted poly(p-phenylene) polymers. J Appl Polym Sci 2012. [DOI: 10.1002/app.36315] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Ruan BF, Lu X, Tang JF, Wei Y, Wang XL, Zhang YB, Wang LS, Zhu HL. Synthesis, biological evaluation, and molecular docking studies of resveratrol derivatives possessing chalcone moiety as potential antitubulin agents. Bioorg Med Chem 2011; 19:2688-95. [PMID: 21440448 DOI: 10.1016/j.bmc.2011.03.001] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2011] [Revised: 02/26/2011] [Accepted: 03/01/2011] [Indexed: 11/25/2022]
Abstract
Twenty-three resveratrol derivatives possessing chalcone moiety were synthesized and characterized, and their biological activities were also evaluated as potential antiproliferation and tubulin polymerization inhibitors. Compound C19 exhibited the most potent activity in vitro, which inhibited the growth of HepG2, B16-F10, and A549 cell lines with IC(50) values of 0.2, 0.1, and 1.4 μg/mL, respectively. Compound C19 also exhibited significant tubulin polymerization inhibitory activity (IC(50)=2.6 μg/mL). Docking simulation was performed to position compound C19 into the tubulin-colchicine binding site to determine the probable binding mode.
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Affiliation(s)
- Ban-Feng Ruan
- State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing, PR China
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Kakati D, Sarma JC. Microwave assisted solvent free synthesis of 1,3-diphenylpropenones. Chem Cent J 2011; 5:8. [PMID: 21329529 PMCID: PMC3050788 DOI: 10.1186/1752-153x-5-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2010] [Accepted: 02/18/2011] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND 1,3-Diphenylpropenones (chalcones) are well known for their diverse array of bioactivities. Hydroxyl group substituted chalcones are the main precursor in the synthesis of flavonoids. Till date various methods have been developed for the synthesis of these very interesting molecules. Continuing our efforts for the development of simple, eco-friendly and cost-effective methodologies, we report here a solvent free condensation of aryl ketones and aldehydes using iodine impregnated alumina under microwave activation. This new protocol has been applied to a variety of substituted aryl carbonyls with excellent yield of substituted 1,3-diphenylpropenones. RESULTS Differently substituted chalcones were synthesized using iodine impregnated neutral alumina as catalyst in 79-95% yield in less than 2 minutes time under microwave activation without using any solvent. The reaction was studied under different catalytic conditions and it was found that molecular iodine supported over neutral alumina gives the best yield. The otherwise difficult single step condensation of hydroxy substituted aryl carbonyls is an attractive feature of this protocol to obtain polyhydroxychalcones in excellent yields. In order to find out the general applicability of this new endeavor it was successfully applied for the synthesis of 15 different chalcones including highly bioactive prenylated hydroxychalcone xanthohumol. CONCLUSION A new, simple and solvent free method was developed for the synthesis of substituted chalcones in environmentally benign way. The mild reaction conditions, easy work-up, clean reaction profiles render this approach as an interesting alternative to the existing methods.
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Affiliation(s)
- Dwipen Kakati
- Natural Products Chemistry Division, North East Institute of Science & Technology [CSIR], Jorhat-785006, Assam, India.
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Dolle RE, Bourdonnec BL, Worm K, Morales GA, Thomas CJ, Zhang W. Comprehensive survey of chemical libraries for drug discovery and chemical biology: 2009. JOURNAL OF COMBINATORIAL CHEMISTRY 2010; 12:765-806. [PMID: 20923157 PMCID: PMC4140011 DOI: 10.1021/cc100128w] [Citation(s) in RCA: 82] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Roland E Dolle
- Adolor Corporation, 700 Pennsylvania Drive, Exton, Pennsylvania 19341, USA.
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