1
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Hao N, Han L, Li Y, Li J, Tian X, Kong D, Tian X. New 8-O-4' Neolignans and Their Antibacterial Activity from the Whole Plants of Clematis lasiandra. ACS OMEGA 2020; 5:19661-19666. [PMID: 32803061 PMCID: PMC7424705 DOI: 10.1021/acsomega.0c02339] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Accepted: 07/16/2020] [Indexed: 06/11/2023]
Abstract
Four new 8-O-4' neolignans, characterized at methoxy or ethoxy groups substituted at C-7, namely, (±) lasiandranins A-D (1-4), and two known analogs (±) pinnatifidanin BV (5) and (±) pinnatifidanin BVI (6) were isolated from the whole plants of Clematis lasiandra Maxim. The structures of 1-6 were determined by spectroscopic methods including 1D, 2D NMR, ECD, and HRESIMS analysis. Compounds 1 and 5 were determined as erythro configuration, while 2-4 and 6 were determined as threo configuration based on the chemical shift difference of H-9a and H-9b in CD3OD. The 8-O-4' neolignans were found from the genus Clematis for the first time. Compounds 1-6 were evaluated for their antibacterial activity against three plant pathogenic bacteria Pseudomonas syringae pv. actinidiae, Ralstonia solanacearum, and Erwinia carotovora by agar and broth dilution methods. Compounds 1-6 showed potent antibacterial activity against R. solanacearum with MIC values of 25-50 μg/mL and relatively lower activity against P. syringae pv. actinidiae with MIC values of 50-100 μg/mL, while they were inactive to E. carotovora.
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Affiliation(s)
- Nan Hao
- College
of Plant Protection, Northwest A&F University, Yangling 712100, China
| | - Lirong Han
- College
of Plant Protection, Northwest A&F University, Yangling 712100, China
| | - Yantao Li
- College
of Plant Protection, Northwest A&F University, Yangling 712100, China
| | - Jiao Li
- College
of Chemistry, Nankai Universit, Tianjin 300071, China
| | - Xiaolin Tian
- College
of Plant Protection, Northwest A&F University, Yangling 712100, China
| | - Dan Kong
- College
of Plant Protection, Northwest A&F University, Yangling 712100, China
| | - Xiangrong Tian
- College
of Plant Protection, Northwest A&F University, Yangling 712100, China
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2
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Diem Ferreira Xavier MC, Andia Sandagorda EM, Santos Neto JS, Schumacher RF, Silva MS. Synthesis of 3-selanylbenzo[ b]furans promoted by SelectFluor®. RSC Adv 2020; 10:13975-13983. [PMID: 35498450 PMCID: PMC9051628 DOI: 10.1039/d0ra01907k] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Accepted: 03/30/2020] [Indexed: 11/21/2022] Open
Abstract
A simple and practical protocol for the synthesis of 3-selanyl-benzo[b]furans mediated by the SelectFluor® reagent was developed. This novel methodology provided a greener alternative to generate 3-substituted-benzo[b]furans via a metal-free procedure under mild conditions. The intramolecular cyclization reaction was carried out employing an electrophilic selenium species generated in situ through the reaction between SelectFluor® and organic diselenides. The formation of this electrophilic selenium species (RSe-F) was confirmed by heteronuclear NMR spectroscopy, and its reactivity was explored.
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Affiliation(s)
- Maurício Carpe Diem Ferreira Xavier
- Laboratório de Síntese Orgânica Limpa - LASOL, Centro de Ciências Químicas, Farmacêuticas e de Alimentos - CCQFA, Universidade Federal de Pelotas - UFPel Capão do Leão RS Brazil
| | - Eduardo Martarelo Andia Sandagorda
- Laboratório de Síntese Orgânica Limpa - LASOL, Centro de Ciências Químicas, Farmacêuticas e de Alimentos - CCQFA, Universidade Federal de Pelotas - UFPel Capão do Leão RS Brazil
| | | | - Ricardo Frederico Schumacher
- Laboratório de Síntese Orgânica Limpa - LASOL, Centro de Ciências Químicas, Farmacêuticas e de Alimentos - CCQFA, Universidade Federal de Pelotas - UFPel Capão do Leão RS Brazil
- Departamento de Química, Universidade Federal de Santa Maria - UFSM Santa Maria RS Brazil
| | - Márcio Santos Silva
- Laboratório de Síntese Orgânica Limpa - LASOL, Centro de Ciências Químicas, Farmacêuticas e de Alimentos - CCQFA, Universidade Federal de Pelotas - UFPel Capão do Leão RS Brazil
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3
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Berzaghi R, Agócs A, Curto MA, Gulyás-Fekete G, Kocsis B, Ribas JC, Lóránd T. Novel Cell Wall Antifungals Reveal a Special Synergistic Activity in pbr1 Mutants Resistant to the Glucan Synthesis Antifungals Papulacandins and Echinocandins. Front Microbiol 2019; 10:1692. [PMID: 31428061 PMCID: PMC6689975 DOI: 10.3389/fmicb.2019.01692] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Accepted: 07/09/2019] [Indexed: 01/22/2023] Open
Abstract
A series of 4-(arylmethylene)-3-isochromanones have been prepared with base-catalyzed Knoevenagel condensation starting from 3-isochromanone and aromatic aldehydes. The outcome of the reaction- the isomeric composition of the products depends on the aromatic aldehyde applied. These reactions afforded mostly the more stable E-diastereoisomer, but some condensations resulted in the Z-diastereoisomer or mixture of the stereoisomers (1-16). The products showed antifungal effect against some pathogenic fungi. We wanted to extend this study and to synthesize a new generation of 4-(arylmethylene)-3-isochromanones. These condensations led mostly to E-diastereoisomers (17-30). The structure verifications were performed by FT IR, 1H and13C NMR methods. Both the 1-16 and the novel 17-30 compounds have been screened against the three yeast models, fission yeast Schizosaccharomyces pombe (wild-type, and pbr1-6 and pbr1-8 mutants resistant to specific cell wall synthesis inhibitors), budding yeast Saccharomyces cerevisiae (wild-type and pbr1-1) and pathogenic yeast Candida albicans (wild-type, ATCC 26555, 90028 and SC5314). Osmotic protection with sorbitol attenuated the in vivo inhibition in living cells suggesting a cell wall-specific antifungal effect. Moreover, the S. pombe wild-type and mutant strains were tested for their resistant or sensitive in vitro β(1,3)-glucan synthase (GS) activity. We found both in vivo in living cells and in vitro in the enzymatic GS assay a synergistic effect of higher sensitivity of the pbr1 mutants resistant to the specific GS inhibitors papulacandins and echinocandins. These results may provide new insights into new strategies of combined antifungal therapy of GS inhibitors directed against spontaneous mutants resistant to echinocandins.
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Affiliation(s)
- Rodrigo Berzaghi
- Instituto de Biología Funcional y Genómica, Consejo Superior de Investigaciones Científicas, Universidad de Salamanca, Salamanca, Spain
| | - Attila Agócs
- Department of Biochemistry and Medical Chemistry, University of Pécs Medical School, Pécs, Hungary
| | - María A. Curto
- Instituto de Biología Funcional y Genómica, Consejo Superior de Investigaciones Científicas, Universidad de Salamanca, Salamanca, Spain
| | - Gergely Gulyás-Fekete
- Department of Biochemistry and Medical Chemistry, University of Pécs Medical School, Pécs, Hungary
| | - Béla Kocsis
- Department of Medical Microbiology and Immunology, University of Pécs Medical School, Pécs, Hungary
| | - Juan C. Ribas
- Instituto de Biología Funcional y Genómica, Consejo Superior de Investigaciones Científicas, Universidad de Salamanca, Salamanca, Spain
| | - Tamás Lóránd
- Department of Biochemistry and Medical Chemistry, University of Pécs Medical School, Pécs, Hungary
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4
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Pereira RR, Testi M, Rossi F, Silva Junior JOC, Ribeiro-Costa RM, Bettini R, Santi P, Padula C, Sonvico F. Ucuùba ( Virola surinamensis) Fat-Based Nanostructured Lipid Carriers for Nail Drug Delivery of Ketoconazole: Development and Optimization Using Box-Behnken Design. Pharmaceutics 2019; 11:pharmaceutics11060284. [PMID: 31212993 PMCID: PMC6630981 DOI: 10.3390/pharmaceutics11060284] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2019] [Revised: 06/10/2019] [Accepted: 06/11/2019] [Indexed: 12/17/2022] Open
Abstract
Ucuùba fat is fat obtained from a plant found in South America, mainly in Amazonian Brazil. Due to its biocompatibility and bioactivity, Ucuùba fat was used for the production of ketoconazole-loaded nanostructured lipid carriers (NLC) in view of an application for the treatment of onychomycosis and other persistent fungal infections. The development and optimization of Ucuùba fat-based NLC were performed using a Box-Behnken design of experiments. The independent variables were surfactant concentration (% w/v), liquid lipids concentration (% w/v), solid lipids concentration (% w/v), while the outputs of interest were particle size, polydispersity index (PDI) and drug encapsulation efficiency (EE). Ucuùba fat-based NLC were produced and the process was optimized by the development of a predictive mathematical model. Applying the model, two formulations with pre-determined particle size, i.e., 30 and 85 nm, were produced for further evaluation. The optimized formulations were characterized and showed particle size in agreement to the predicted value, i.e., 33.6 nm and 74.6 nm, respectively. The optimized formulations were also characterized using multiple techniques in order to investigate the solid state of drug and excipients (DSC and XRD), particle morphology (TEM), drug release and interactions between the formulation components (FTIR). Furthermore, particle size, surface charge and drug loading efficiency of the formulations were studied during a one-month stability study and did not show evidence of significant modification.
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Affiliation(s)
- Rayanne R Pereira
- Pharmaceutical Sciences Faculty, Federal University of Para, 66075-110 Belem, Brazil.
- Food and Drug Department, University of Parma, 43124 Parma, Italy.
| | - Matteo Testi
- Food and Drug Department, University of Parma, 43124 Parma, Italy.
| | - Francesca Rossi
- Institute of Materials for Electronics and Magnetism (IMEM), CNR-Italian National Research Council, Parco Area delle Scienze 37/A, 43124 Parma, Italy.
| | - Jose O C Silva Junior
- Pharmaceutical Sciences Faculty, Federal University of Para, 66075-110 Belem, Brazil.
| | | | - Ruggero Bettini
- Food and Drug Department, University of Parma, 43124 Parma, Italy.
- Biopharmanet-TEC, University of Parma, 43124 Parma, Italy.
| | - Patrizia Santi
- Food and Drug Department, University of Parma, 43124 Parma, Italy.
- Biopharmanet-TEC, University of Parma, 43124 Parma, Italy.
| | - Cristina Padula
- Food and Drug Department, University of Parma, 43124 Parma, Italy.
| | - Fabio Sonvico
- Food and Drug Department, University of Parma, 43124 Parma, Italy.
- Biopharmanet-TEC, University of Parma, 43124 Parma, Italy.
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5
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Chen H, Yeh MP. Synthesis of tetrahydrobenzo[
b
]furans via a gold(I)‐catalyzed rearrangement/cycloisomerization sequence of cyclic 1‐aryl‐2‐propargyl‐cyclohex‐2enols. J CHIN CHEM SOC-TAIP 2019. [DOI: 10.1002/jccs.201800320] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Hsiao‐Feng Chen
- Department of ChemistryNational Taiwan Normal University Taipei Taiwan
| | - Ming‐Chang P. Yeh
- Department of ChemistryNational Taiwan Normal University Taipei Taiwan
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6
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Ren X, She X, Peng K, Su Y, Xie X, Pan X. First Enantioselective Synthesis of Rhaphidecursinol A. JOURNAL OF CHEMICAL RESEARCH 2019. [DOI: 10.3184/030823403103174119] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The enantioselective synthesis of Rhaphidecursinol A was reported for the first time and the absolute configuration of Rhaphidecursinol A was confirmed.
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Affiliation(s)
- Xinfeng Ren
- Department of Chemistry, National Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Xuegong She
- Department of Chemistry, National Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Kun Peng
- Department of Chemistry, National Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Ying Su
- Department of Chemistry, National Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Xingang Xie
- Department of Chemistry, National Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Xinfu Pan
- Department of Chemistry, National Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
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7
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Chen Q, Jiang P, Guo M, Yang J. Synthesis of New 2-Arylbenzo[ b]furan Derivatives via Palladium-Catalyzed Suzuki Cross-Coupling Reactions in Aqueous Media. Molecules 2018; 23:molecules23102450. [PMID: 30257438 PMCID: PMC6222736 DOI: 10.3390/molecules23102450] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Revised: 09/20/2018] [Accepted: 09/21/2018] [Indexed: 11/16/2022] Open
Abstract
A series of novel benzofuran derivatives containing biaryl moiety were designed and synthesized by the Suzuki cross-coupling reactions. The reactions, performed in the presence of K₂CO₃, EtOH/H₂O and Pd(II) complex as catalyst, gave the corresponding products in good to excellent yields. The methodology allows the facile production of heterobiaryl compounds, a unique architectural motif that is ubiquitous in medicinal chemistry.
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Affiliation(s)
- Qianqian Chen
- Laboratory of Green Catalysis and Reaction Engineering of Haikou, Hainan Provincial Fine Chemical Engineering Research Center, College of Chemistry and Chemical Engineering, Hainan University, Haikou 570228, China.
| | - Panli Jiang
- Institute of Coordination Catalysis, College of Chemistry and Bio-Engineering, Yichun University, Yichun 336000, China.
| | - Mengping Guo
- Institute of Coordination Catalysis, College of Chemistry and Bio-Engineering, Yichun University, Yichun 336000, China.
| | - Jianxin Yang
- Laboratory of Green Catalysis and Reaction Engineering of Haikou, Hainan Provincial Fine Chemical Engineering Research Center, College of Chemistry and Chemical Engineering, Hainan University, Haikou 570228, China.
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8
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Heravi MM, Ghalavand N, Ghanbarian M, Mohammadkhani L. Applications of Mitsunobu Reaction in total synthesis of natural products. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4464] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Majid M. Heravi
- Department of Chemistry; Alzahra University; Vanak, P.O. Box 1993893973 Tehran Iran
| | - Nastaran Ghalavand
- Department of Chemistry; Alzahra University; Vanak, P.O. Box 1993893973 Tehran Iran
| | - Manizheh Ghanbarian
- Department of Chemistry; Alzahra University; Vanak, P.O. Box 1993893973 Tehran Iran
| | - Leyla Mohammadkhani
- Department of Chemistry; Alzahra University; Vanak, P.O. Box 1993893973 Tehran Iran
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9
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[(PhCH2O)2P(CH3)2CHNCH(CH3)2]2PdCl2/CuI as Cocatalyst for Coupling-Cyclization of 2-Iodophenol with Terminal Alkynes in Water. Catalysts 2018. [DOI: 10.3390/catal8040136] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
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10
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Veiga A, Albuquerque K, Corrêa ME, Brigido H, Silva e Silva J, Campos M, Silveira F, Santos L, Dolabela M. Leishmania amazonensis and Leishmania chagasi: In vitro leishmanicide activity of Virola surinamensis (rol.) warb. Exp Parasitol 2017; 175:68-73. [DOI: 10.1016/j.exppara.2017.02.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2016] [Revised: 12/21/2016] [Accepted: 02/03/2017] [Indexed: 10/20/2022]
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11
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Rehan M, Nallagonda R, Das BG, Meena T, Ghorai P. Synthesis of Functionalized Benzo[b]furans via Oxidative Cyclization of o-Cinnamyl Phenols. J Org Chem 2017; 82:3411-3424. [PMID: 28249386 DOI: 10.1021/acs.joc.6b02752] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Disclosed herein is an efficient synthetic route for the synthesis of functionalized 2-benzyl benzo[b]furans via a regioselective 5-exo-trig intramolecular oxidative cyclization of ortho-cinnamyl phenols using [PdCl2(CH3CN)2] as catalyst and benzoquinone as an oxidant. Further, a sequential ortho-cinnamylation of phenols using cinnamyl alcohols catalyzed by Re2O7, followed by an oxidative cyclization using the above Pd catalyst, is performed. The reaction showed broad substrate scope with good to excellent yields.
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Affiliation(s)
- Mohammad Rehan
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal , Bhauri, Bhopal-462066, India
| | - Rajender Nallagonda
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal , Bhauri, Bhopal-462066, India
| | - Braja Gopal Das
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal , Bhauri, Bhopal-462066, India
| | - Tannu Meena
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal , Bhauri, Bhopal-462066, India
| | - Prasanta Ghorai
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal , Bhauri, Bhopal-462066, India
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12
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Ethnobotanical Research at the Kutukú Scientific Station, Morona-Santiago, Ecuador. BIOMED RESEARCH INTERNATIONAL 2016; 2016:9105746. [PMID: 28074189 PMCID: PMC5198176 DOI: 10.1155/2016/9105746] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Accepted: 11/21/2016] [Indexed: 11/17/2022]
Abstract
This work features the results of an ethnobotanical study on the uses of medicinal plants by the inhabitants of the region near to the Kutukú Scientific Station of Universidad Politécnica Salesiana, located in the Morona-Santiago province, southeast of Ecuador. In the surroundings of the station, one ethnic group, the Shuar, has been identified. The survey hereafter reports a total of 131 plant species, with 73 different therapeutic uses.
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13
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A New Wutaifuranol Derivative From Solanum cathayanum. Chem Nat Compd 2016. [DOI: 10.1007/s10600-016-1816-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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14
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Gawande MB, Goswami A, Felpin FX, Asefa T, Huang X, Silva R, Zou X, Zboril R, Varma RS. Cu and Cu-Based Nanoparticles: Synthesis and Applications in Catalysis. Chem Rev 2016; 116:3722-811. [DOI: 10.1021/acs.chemrev.5b00482] [Citation(s) in RCA: 1589] [Impact Index Per Article: 198.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Manoj B. Gawande
- Regional
Centre of Advanced Technologies and Materials, Faculty of Science,
Department of Physical Chemistry, Palacky University, Šlechtitelů
11, 783 71 Olomouc, Czech Republic
| | - Anandarup Goswami
- Regional
Centre of Advanced Technologies and Materials, Faculty of Science,
Department of Physical Chemistry, Palacky University, Šlechtitelů
11, 783 71 Olomouc, Czech Republic
- Department
of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, 610 Taylor Road, Piscataway, New Jersey 08854, United States
- Department
of Chemical and Biochemical Engineering, Rutgers, The State University of New Jersey, 98 Brett Road, Piscataway, New Jersey 08854, United States
| | - François-Xavier Felpin
- UFR
Sciences et Techniques, UMR CNRS 6230, Chimie et Interdisciplinarité:
Synthèse, Analyse, Modélisation (CEISAM), Université de Nantes, 2 Rue de la Houssinière, BP 92208, Nantes 44322 Cedex 3, France
| | - Tewodros Asefa
- Department
of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, 610 Taylor Road, Piscataway, New Jersey 08854, United States
- Department
of Chemical and Biochemical Engineering, Rutgers, The State University of New Jersey, 98 Brett Road, Piscataway, New Jersey 08854, United States
| | - Xiaoxi Huang
- Department
of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, 610 Taylor Road, Piscataway, New Jersey 08854, United States
| | - Rafael Silva
- Department
of Chemistry, Maringá State University, Avenida Colombo 5790, CEP 87020-900 Maringá, Paraná, Brazil
| | - Xiaoxin Zou
- State
Key
Laboratory of Inorganic Synthesis and Preparative Chemistry, International
Joint Research Laboratory of Nano-Micro Architecture Chemistry, College
of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, China
| | - Radek Zboril
- Regional
Centre of Advanced Technologies and Materials, Faculty of Science,
Department of Physical Chemistry, Palacky University, Šlechtitelů
11, 783 71 Olomouc, Czech Republic
| | - Rajender S. Varma
- Regional
Centre of Advanced Technologies and Materials, Faculty of Science,
Department of Physical Chemistry, Palacky University, Šlechtitelů
11, 783 71 Olomouc, Czech Republic
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15
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Lalwani KG, Sudalai A. First Enantioselective Synthesis of Surinamensinol B and a Non-Natural Polysphorin Analogue by a Two-Stereocentered Hydrolytic Kinetic Resolution. European J Org Chem 2015. [DOI: 10.1002/ejoc.201501009] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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16
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Kumar CSC, Then LY, Chia TS, Chandraju S, Win YF, Sulaiman SF, Hashim NS, Ooi KL, Quah CK, Fun HK. Benzofuranyl Esters: Synthesis, Crystal Structure Determination, Antimicrobial and Antioxidant Activities. Molecules 2015; 20:16566-81. [PMID: 26378514 PMCID: PMC6332186 DOI: 10.3390/molecules200916566] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2015] [Revised: 08/14/2015] [Accepted: 08/17/2015] [Indexed: 01/09/2023] Open
Abstract
A series of five new 2-(1-benzofuran-2-yl)-2-oxoethyl 4-(un/substituted)benzoates 4(a-e), with the general formula of C₈H₅O(C=O)CH₂O(C=O)C₆H₄X, X = H, Cl, CH₃, OCH₃ or NO₂, was synthesized in high purity and good yield under mild conditions. The synthesized products 4(a-e) were characterized by FTIR, ¹H-, (13)C- and ¹H-(13)C HMQC NMR spectroscopic analysis and their 3D structures were confirmed by single-crystal X-ray diffraction studies. These compounds were screened for their antimicrobial and antioxidant activities. The tested compounds showed antimicrobial ability in the order of 4b < 4a < 4c < 4d < 4e and the highest potency with minimum inhibition concentration (MIC) value of 125 µg/mL was observed for 4e. The results of antioxidant activities revealed the highest activity for compound 4e (32.62% ± 1.34%) in diphenyl-2-picrylhydrazyl (DPPH) radical scavenging, 4d (31.01% ± 4.35%) in ferric reducing antioxidant power (FRAP) assay and 4a (27.11% ± 1.06%) in metal chelating (MC) activity.
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Affiliation(s)
- C S Chidan Kumar
- X-ray Crystallography Unit, School of Physics, Universiti Sains Malaysia, Penang 11800, Malaysia.
- Department of Engineering Chemistry, Alva's Institute of Engineering & Technology, Visvesvaraya Technological University, Mijar, Moodbidri 574225, Karnataka, India.
| | - Li Yee Then
- X-ray Crystallography Unit, School of Physics, Universiti Sains Malaysia, Penang 11800, Malaysia.
| | - Tze Shyang Chia
- X-ray Crystallography Unit, School of Physics, Universiti Sains Malaysia, Penang 11800, Malaysia.
| | - Siddegowda Chandraju
- Department of Sugar Technology & Chemistry, University of Mysore, Sir M. V. PG Center, Tubinakere, Mandya 571402, Karnataka, India.
| | - Yip-Foo Win
- Department of Chemical Science, Faculty of Science, Universiti Tunku Abdul Rahman, Perak Campus, Jalan Universiti, Bandar Barat, Kampar 31900, Malaysia.
| | | | | | - Kheng Leong Ooi
- School of Biological Sciences, Universiti Sains Malaysia, Penang 11800, Malaysia.
| | - Ching Kheng Quah
- X-ray Crystallography Unit, School of Physics, Universiti Sains Malaysia, Penang 11800, Malaysia.
| | - Hoong-Kun Fun
- X-ray Crystallography Unit, School of Physics, Universiti Sains Malaysia, Penang 11800, Malaysia.
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia.
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17
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Wang S, Lv B, Cui Q, Ma X, Ba X, Xiao J. Synthesis, Photophysics, and Self-Assembly of Furan-Embedded Heteroarenes. Chemistry 2015; 21:14791-6. [DOI: 10.1002/chem.201501978] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Indexed: 02/05/2023]
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18
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Affiliation(s)
- Cheol Gi Kim
- Department of Chemistry and Institute of Applied Chemistry; Hallym University; Chuncheon 200-702 Korea
| | - Jong-Gab Jun
- Department of Chemistry and Institute of Applied Chemistry; Hallym University; Chuncheon 200-702 Korea
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Cytotoxic Activity and Chemical Composition of the Root Extract from the Mexican Species Linum scabrellum: Mechanism of Action of the Active Compound 6-Methoxypodophyllotoxin. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2015; 2015:298463. [PMID: 26246833 PMCID: PMC4515262 DOI: 10.1155/2015/298463] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2015] [Revised: 05/26/2015] [Accepted: 06/03/2015] [Indexed: 12/17/2022]
Abstract
The cytotoxic activity and the chemical composition of the dichloromethane/methanol root extract of Linum scabrellum Planchon (Linaceae) were analyzed. Using NMR spectra and mass spectrometry analyses of the extract we identified eight main constituents: oleic acid (1), octadecenoic acid (2), stigmasterol (3), α-amyrin (4), pinoresinol (5), 6 methoxypodophyllotoxin (6), coniferin (7), and 6-methoxypodophyllotoxin-7-O-β-D-glucopyranoside (8). By using the sulforhodamine B assay, an important cytotoxic activity against four human cancer cell lines, HF6 colon (IC50 = 0.57 μg/mL), MCF7 breast (IC50 = 0.56 μg/mL), PC3 prostate (IC50 = 1.60 μg/mL), and SiHa cervical (IC50 = 1.54 μg/mL), as well as toward the normal fibroblasts line HFS-30 IC50 = 1.02 μg/mL was demonstrated. Compound 6 (6-methoxypodophyllotoxin) was responsible for the cytotoxic activity exhibiting an IC50 value range of 0.0632 to 2.7433 µg/mL against the tested cell lines. Cell cycle studies with compound 6 exhibited a cell arrest in G2/M of the prostate PC3 cancer cell line. Microtubule disruption studies demonstrated that compound 6 inhibited the polymerization of tubulin through its binding to the colchicine site (binding constant K b = 7.6 × 10(6) M(-1)). A dose-response apoptotic effect was also observed. This work constitutes the first investigation reporting the chemical composition of L. scabrellum and the first study determining the mechanism of action of compound 6.
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Tang C, Chen Z, Xiao H, Wang X, Zhang G, Hu D. Synthesis and Antiviral Activity of Novel α-Aminophosphorus Containing Benzofuran Moiety. PHOSPHORUS SULFUR 2015. [DOI: 10.1080/10426507.2014.965815] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Chenghao Tang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, 550025, P. R. China
| | - Zhiwei Chen
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, 550025, P. R. China
| | - Han Xiao
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, 550025, P. R. China
| | - Xiang Wang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, 550025, P. R. China
| | - Guoping Zhang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, 550025, P. R. China
| | - Deyu Hu
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, 550025, P. R. China
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21
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Zhao X, Zhang L, Lu X, Li T, Lu K. Synthesis of 2-Aryl and 3-Aryl Benzo[b]furan Thioethers Using Aryl Sulfonyl Hydrazides as Sulfenylation Reagents. J Org Chem 2015; 80:2918-24. [DOI: 10.1021/acs.joc.5b00146] [Citation(s) in RCA: 86] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Xia Zhao
- College
of Chemistry, Tianjin Key Laboratory of Structure and Performance
for Functional Molecules, Tianjin Normal University, Tianjin 300387, China
| | - Lipeng Zhang
- College
of Chemistry, Tianjin Key Laboratory of Structure and Performance
for Functional Molecules, Tianjin Normal University, Tianjin 300387, China
| | - Xiaoyu Lu
- College
of Chemistry, Tianjin Key Laboratory of Structure and Performance
for Functional Molecules, Tianjin Normal University, Tianjin 300387, China
| | - Tianjiao Li
- College
of Chemistry, Tianjin Key Laboratory of Structure and Performance
for Functional Molecules, Tianjin Normal University, Tianjin 300387, China
| | - Kui Lu
- College of Biotechnology, Tianjin University of Science & Technology, Tianjin 300457, China
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22
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Cao GY, Xu W, Yang XW, Gonzalez FJ, Li F. New neolignans from the seeds of Myristica fragrans that inhibit nitric oxide production. Food Chem 2014; 173:231-7. [PMID: 25466017 DOI: 10.1016/j.foodchem.2014.09.170] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2014] [Revised: 09/03/2014] [Accepted: 09/29/2014] [Indexed: 11/24/2022]
Abstract
Five new 8-O-4' type neolignans, named myrifralignan A-E (1-5), together with five known analogues (6-10), were isolated from the seeds of Myristica fragrans Houtt. Their chemical structures were determined using several spectroscopic methods. Compounds 3-10 exhibited potent inhibitory activity against the production of nitric oxide (NO) in the RAW264.7 cell line stimulated by lipopolysaccaride. Myrislignan (7) and machilin D (10) were the most potent inhibitors of NO production amongst these compounds. The IC50 values of myrislignan and machilin D were 21.2 and 18.5 μM. And, their inhibitory activity was more than L-N(6)-(1-iminoethyl)-lysine, a selective inhibitor of inducible nitric oxide synthase (IC50=27.1 μM). Furthermore, real-time PCR analysis revealed that these neolignans could significantly suppress the expression of inducible nitric oxide synthase mRNA. These results demonstrated that the 8-O-4' type neolignans are promising candidates as anti-inflammatory agents.
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Affiliation(s)
- Gui-Yun Cao
- State Key Laboratory of Natural and Biomimetic Drugs (Peking University), Department of Natural Medicines, School of Pharmaceutical Sciences, Peking University Health Science Center, Peking University, Beijing 100191, PR China
| | - Wei Xu
- State Key Laboratory of Natural and Biomimetic Drugs (Peking University), Department of Natural Medicines, School of Pharmaceutical Sciences, Peking University Health Science Center, Peking University, Beijing 100191, PR China
| | - Xiu-Wei Yang
- State Key Laboratory of Natural and Biomimetic Drugs (Peking University), Department of Natural Medicines, School of Pharmaceutical Sciences, Peking University Health Science Center, Peking University, Beijing 100191, PR China.
| | - Frank J Gonzalez
- Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA.
| | - Fei Li
- Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
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23
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Wang WY, Hu BL, Deng CL, Zhang XG. One-pot synthesis of 3-trifluoromethylbenzofurans via tandem iodocyclization and trifluoromethylation of 2-alkynylanisoles. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.01.061] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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24
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The cytotoxicity of 8-O-4′ neolignans from the seeds of Crataegus pinnatifida. Bioorg Med Chem Lett 2013; 23:5599-604. [DOI: 10.1016/j.bmcl.2013.08.045] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2013] [Revised: 08/05/2013] [Accepted: 08/08/2013] [Indexed: 11/22/2022]
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25
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Su Y, Ren XF, She XG, Pan XF. Enantioselective Synthesis of Several Natural Virologins. J CHIN CHEM SOC-TAIP 2013. [DOI: 10.1002/jccs.200400193] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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26
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Zhu R, Wei J, Shi Z. Benzofuran synthesis via copper-mediated oxidative annulation of phenols and unactivated internal alkynes. Chem Sci 2013. [DOI: 10.1039/c3sc51489g] [Citation(s) in RCA: 133] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
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27
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Rye CE, Barker D. Asymmetric synthesis and anti-protozoal activity of the 8,4'-oxyneolignans virolin, surinamensin and analogues. Eur J Med Chem 2012; 60:240-8. [PMID: 23313632 DOI: 10.1016/j.ejmech.2012.12.013] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2012] [Revised: 12/05/2012] [Accepted: 12/10/2012] [Indexed: 11/18/2022]
Abstract
The asymmetric synthesis of 8,4'-oxyneolignans (-)-virolin, (-)-surinamensin and a number of analogues has been achieved. A divergent synthesis was used, with all compounds being elaborated from a single chiral aldehyde derived from ethyl lactate. In the 15 compounds that were tested, the level of substitution on the A-ring was found to directly influence the activity against Leishmania donovani whilst the activity against Plasmodium falciparum was influenced by numerous substitution and stereochemical factors.
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Affiliation(s)
- Claire E Rye
- School of Chemical Sciences, University of Auckland, 23 Symonds St, Auckland, New Zealand
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28
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Olivella M, Marchal A, Nogueras M, Sánchez A, Melguizo M, Raimondi M, Zacchino S, Giannini F, Cobo J, Enriz RD. Structure–activity relationship study of nitrosopyrimidines acting as antifungal agents. Bioorg Med Chem 2012; 20:6109-22. [DOI: 10.1016/j.bmc.2012.08.033] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2012] [Revised: 08/08/2012] [Accepted: 08/16/2012] [Indexed: 11/27/2022]
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29
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Lee NL, Lee JJ, Kim JK, Jun JG. Ailanthoidol Derivatives and their Anti-inflammatory Effects. B KOREAN CHEM SOC 2012. [DOI: 10.5012/bkcs.2012.33.6.1907] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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30
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Mukherjee T, Chowdhury S, Kumar A, Majumder HK, Jaisankar P, Mukhopadhyay S. Saracoside: A New Lignan Glycoside from Saraca indica, a Potential Inhibitor of DNA Topoisomerase IB. Nat Prod Commun 2012. [DOI: 10.1177/1934578x1200700619] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Chemical investigation of the stem bark of Saraca indica has resulted in the isolation of a new lignan glycoside, saracoside, along with four known lignan glycosides lyoniside, icariside E3, (+)5′methoxyisolarciresinol-9′- O-β-D-glucopyranoside and nudiposide, and a phenolic glucopyranoside, 3,4,5– trimethoxyphenyl-β-D-glucopyranoside, which has been isolated for the first time from this species. The isolated lignan glycosides exhibit potent DNA topoisomerase IB inhibitory activity.
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Affiliation(s)
- Tulika Mukherjee
- Chemistry Division, Indian Institute of Chemical Biology, Jadavpur, Kolkata -700032, India
| | - Sayan Chowdhury
- Molecular Parasitology Laboratory, Indian Institute of Chemical Biology, Jadavpur, Kolkata -700032, India
| | - Ashish Kumar
- Chemistry Division, Indian Institute of Chemical Biology, Jadavpur, Kolkata -700032, India
| | - Hemanta K Majumder
- Molecular Parasitology Laboratory, Indian Institute of Chemical Biology, Jadavpur, Kolkata -700032, India
| | - Parasuraman Jaisankar
- Chemistry Division, Indian Institute of Chemical Biology, Jadavpur, Kolkata -700032, India
| | - Sibabrata Mukhopadhyay
- Chemistry Division, Indian Institute of Chemical Biology, Jadavpur, Kolkata -700032, India
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31
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Arias L, Vara Y, Cossío FP. Regioselective Preparation of Benzo[b]furans from Phenols and α-Bromoketones. J Org Chem 2011; 77:266-75. [DOI: 10.1021/jo201841y] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Leire Arias
- Departamento de Química
Orgánica I − Kimika Organikoa I Saila, Universidad del País Vasco − Euskal Herriko Unibertsitatea (UPV/EHU), Manuel de Lardizabal Etorbidea 3, 20018 San
Sebastián − Donostia, Spain
| | - Yosu Vara
- Ikerchem S. L., Paseo
Mikeletegi 69, 20009 San Sebastián − Donostia,
Spain
| | - Fernando P. Cossío
- Departamento de Química
Orgánica I − Kimika Organikoa I Saila, Universidad del País Vasco − Euskal Herriko Unibertsitatea (UPV/EHU), Manuel de Lardizabal Etorbidea 3, 20018 San
Sebastián − Donostia, Spain
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32
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33
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Olivella MS, Rodríguez AM, Zacchino SA, Somlai C, Penke B, Farkas V, Perczel A, Enriz RD. New antifungal peptides. Synthesis, bioassays and initial structure prediction by CD spectroscopy. Bioorg Med Chem Lett 2010; 20:4808-11. [DOI: 10.1016/j.bmcl.2010.06.105] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2010] [Revised: 06/14/2010] [Accepted: 06/21/2010] [Indexed: 11/25/2022]
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34
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Kumar Das S, Kumar Das S, Panda G. Formal Total Synthesis of (-)-Raphidecursinol B. European J Org Chem 2010. [DOI: 10.1002/ejoc.201000619] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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35
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Kim KH, Moon E, Kim SY, Lee KR. Lignans from the tuber-barks of Colocasia antiquorum var. esculenta and their antimelanogenic Activity. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2010; 58:4779-4785. [PMID: 20359228 DOI: 10.1021/jf100323q] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Colocasia antiquorum var. esculenta , a variant of C. antiquorum , commonly known as "Imperial Taro", is an edible vegetable in many tropical and subtropical regions of the world. This study with the aim of evaluating the potential of C. antiquorum var. esculenta as a functional food with a depigmenting effect resulted in the identification of a new sesquilignan, named colocasinol A (1), and a new acyclic phenylpropane lignanamide, named cis-grossamide K (2), together with 10 known compounds (3-12). The identification and structural elucidation of these compounds were based on 1D and 2D nuclear magnetic resonance (NMR) spectroscopic data analysis as well as high-resolution fast atom bombardment mass spectrometry (FABMS) and electron impact mass spectrometry (EIMS). Quantitation of the melanin contents and cell viability in murine melanocyte melan-a cells was used to assess the antimelanogenic activities of the isolated compounds. Among them, cis-grossamide K (2), isoamericanol A (3), americanol A (4), 2-hydroxy-3,2'-dimethoxy-4'-(2,3-epoxy-1-hydroxypropyl)-5-(3-hydroxy-1-propenyl)biphenyl (5), and (-)-pinoresinol (6) showed inhibitory effects on melanin production. Compounds 2, 5, and 6 exerted a particularly strong antimelanogenic activity on the cells without high cell toxicity (IC(50) = 54.24, 53.49, and 56.26 microM, and LD(50) = 163.60, 110.23, and >500 microM, respectively).
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Affiliation(s)
- Ki Hyun Kim
- Natural Products Laboratory, School of Pharmacy, Sungkyunkwan University, Suwon 440-746, Korea
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36
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Hwang JW, Choi DH, Jeon JH, Kim JK, Jun JG. Facile Preparation of 2-Arylbenzo[b]furan Molecules and Their Anti-inflammatory Effects. B KOREAN CHEM SOC 2010. [DOI: 10.5012/bkcs.2010.31.04.965] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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37
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Yuan HJ, Cheng YY, Qian S, Xiao X, Wu Y. A new shortcut synthesis route for (±)raphidecursinol. CHINESE CHEM LETT 2010. [DOI: 10.1016/j.cclet.2009.10.027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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38
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Valadares MC, De Carvalho ICT, Junior LDO, De Sousa Vieira M, Benfica PL, De Carvalho FS, Andrade LVS, Lima EM, Kato MJ. Cytotoxicity and antiangiogenic activity of grandisin. J Pharm Pharmacol 2010. [DOI: 10.1211/jpp.61.12.0017] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
Abstract
Objectives
The antitumoural properties of grandisin, a tetrahydrofuran neolignan from Piper solmsianum, were investigated by in-vitro and in-vivo assays using the Ehrlich ascites tumoural (EAT) model.
Methods
Viability of the tumour cells was evaluated by Trypan blue exclusion and MTT methods, after incubation with grandisin (0.017-2.3 μM). The effects of grandisin on the activity of caspase-3, −6, −8, and −9 were also investigated using colorimetric protease kits. In-vivo studies were performed in EAT-bearing mice treated intraperitoneally with 2.5, 5 or 10 mg/kg grandisin for 10 days.
Key findings
Grandisin inhibited the growth of EAT cells, by both methods, with IC50 values less than 0.25 μM. The results showed that the activity of all the caspases studied increased in grandisin-treated cells, when compared with control, non-treated cells. Administering grandisin to EAT-bearing mice increased survival of the animals, in a dose-dependent manner. Simultaneously, we detected a 66.35% reduction of intraperitoneal tumour cell burden in the animals treated with 10 mg/kg grandisin. Additionally, in these animals, the marked increase of vascular endothelial growth factor (VEGF) levels, induced by EAT development, was decreased with treatment with grandisin, resulting in a reduction of 32.1% of VEGF levels in the peritoneal washing supernatant, when compared with the control.
Conclusions
The results demonstrated that grandisin induced in-vitro cytotoxicity and antiangiogenic effects in mice while it acted against tumour evolution, prolonging host survival.
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Affiliation(s)
- Marize C Valadares
- Laboratório de Farmacologia e Toxicologia Celular, Universidade Federal de Goiás, Goiânia, Go, Brazil
| | | | - Luiz de Oliveira Junior
- Laboratório de Farmacologia e Toxicologia Celular, Universidade Federal de Goiás, Goiânia, Go, Brazil
| | - Marcelo De Sousa Vieira
- Laboratório de Farmacologia e Toxicologia Celular, Universidade Federal de Goiás, Goiânia, Go, Brazil
| | - Polyana Lopes Benfica
- Laboratório de Farmacologia e Toxicologia Celular, Universidade Federal de Goiás, Goiânia, Go, Brazil
| | - Flávio Silva De Carvalho
- Laboratório de Farmacologia e Toxicologia Celular, Universidade Federal de Goiás, Goiânia, Go, Brazil
| | | | - Eliana Martins Lima
- Laboratório de Tecnologia Farmacêutica, Faculdade de Farmácia, Universidade Federal de Goiás, Goiânia, Go, Brazil
| | - Massuo Jorge Kato
- Laboratório de Química de Produtos Naturais, Instituto de Química, Universidade de São Paulo, São Paulo, SP, Brazil
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39
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Du HA, Zhang XG, Tang RY, Li JH. PdCl2-Promoted Electrophilic Annulation of 2-Alkynylphenol Derivatives with Disulfides or Diselenides in the Presence of Iodine. J Org Chem 2009; 74:7844-8. [DOI: 10.1021/jo9016309] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hui-Ai Du
- College of Chemistry and Materials Science, Wenzhou University, Wenzhou 325035, China
| | - Xing-Guo Zhang
- College of Chemistry and Materials Science, Wenzhou University, Wenzhou 325035, China
| | - Ri-Yuan Tang
- College of Chemistry and Materials Science, Wenzhou University, Wenzhou 325035, China
| | - Jin-Heng Li
- College of Chemistry and Materials Science, Wenzhou University, Wenzhou 325035, China
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Martínez C, Sedano M, Mendoza J, Herrera R, Rutiaga JG, Lopez P. Effect of aqueous environment in chemical reactivity of monolignols. A New Fukui Function Study. J Mol Graph Model 2009; 28:196-201. [PMID: 19647459 DOI: 10.1016/j.jmgm.2009.07.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2009] [Revised: 07/03/2009] [Accepted: 07/04/2009] [Indexed: 10/20/2022]
Abstract
The free radical reactivity of monolignols can be explained in terms of the Fukui function and the local hard and soft acids and bases (HSAB) principle to determine the potential linkages among them for reactions involving free radicals. Our results in gas-phase and aqueous environment elucidate the most probable free radical resonance structures in monolignols. Their reactivity toward nucleophilic or electrophilic species was described applying the Fukui function after a second analysis of the selected resonance structures. Methodology herein described could differentiate the inherent nature of one radical from another.
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Affiliation(s)
- Carmen Martínez
- Faculty of Wood Technology Engineering, Universidad Michoacana de San Nicolás de Hidalgo, Morelia, Michoacán 58000, Mexico
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41
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Nocito I, Castelli MV, Zacchino SA, Serra E. Activity of 8.O.4′-neolignans against Trypanosoma cruzi. Parasitol Res 2007; 101:1453-7. [PMID: 17703322 DOI: 10.1007/s00436-007-0657-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2007] [Revised: 06/22/2007] [Accepted: 06/27/2007] [Indexed: 11/25/2022]
Abstract
The in vitro evaluation of a series of 8.O.4'-neolignans (in their ketone, alcohol, and acetylated forms) on the proliferation of Trypanosoma cruzi led to the detection of three compounds with interesting activities against T. cruzi epimastigotes. These compounds also inhibited the in vitro differentiation of epimastigotes to trypomastigotes. When tested against HeLa cells, the same compounds did not affect the cell vitality and showed a low influence on cell viability as measured by dimethylthiazol diphenyltetrazolium bromide reduction. The three phenylpropanoid moieties tested did not show any activity against T. cruzi. One of the tested compounds, compound 4 (3,4-methylenedioxi7-oxo-1'-allyl-3',5'-dimethoxy-8.O.4'-neolignan) showed the best performance in both trypanocide and cytotoxic assays, suggesting that it should be considered as a leading structure for further research.
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Affiliation(s)
- Isabel Nocito
- Area Parasitología, Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Suipacha 531, 2000, Rosario, Argentina
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42
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Curti C, Zanardi F, Battistini L, Sartori A, Rassu G, Pinna L, Casiraghi G. Streamlined, Asymmetric Synthesis of 8,4‘-Oxyneolignans. J Org Chem 2006; 71:8552-8. [PMID: 17064033 DOI: 10.1021/jo061521t] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Highly direct, modular syntheses of several natural 8,4'-oxyneolignans [(-)-1, (+)-1, (-)-2, and (-)-3] and some related variants [(-)-26, (+)-26, (+)-27, and (-)-28] are reported. Utilizing (S)- or (R)-methyl lactate as the chiral sources, two complementary syn- or anti-oriented routes were designed, encompassing nine and five steps, which were carried out to deliver the targets in an enantiomerically pure form. The embodiment of the two independent aryl and aryloxy moieties onto the lactate frame was performed according to a diversity-oriented protocol from the common precursors, aldehydes 6 and ent-6 for the syn-oriented routes and mesyl esters 19 and ent-19 for the anti-oriented routes. These syntheses set the stage for the generation of a wide and diverse repertoire of 8,4'-oxyneolignan compounds and the broad biological interrogation of its members.
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Affiliation(s)
- Claudio Curti
- Dipartimento Farmaceutico, Università degli Studi di Parma, Viale G.P. Usberti 27A, I-43100 Parma, Italy
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43
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Masman MF, Rodríguez AM, Svetaz L, Zacchino SA, Somlai C, Csizmadia IG, Penke B, Enriz RD. Synthesis and conformational analysis of His-Phe-Arg-Trp-NH2 and analogues with antifungal properties. Bioorg Med Chem 2006; 14:7604-14. [PMID: 16926096 DOI: 10.1016/j.bmc.2006.07.007] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2006] [Accepted: 07/01/2006] [Indexed: 11/30/2022]
Abstract
The synthesis, in vitro evaluation, and conformational study of His-Phe-Arg-Trp-NH2 and related derivatives acting as antifungal agents are reported. Among them, His-Phe-Arg-Trp-NH2 and His-Tyr-Arg-Trp-NH2 exhibited antifungal activity against Cryptococcus neoformans. Antifungal activity of these compounds appears to be closely related to the alpha-MSH effect. A conformational and electronic study allows us to propose a biologically relevant conformation for these tetrapeptides acting as antifungal agents. In addition, these theoretical calculations permit us to determine the minimal structural requirements to produce the antifungal response and may provide a guide for the design of compounds with this biological activity.
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Affiliation(s)
- Marcelo F Masman
- Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis, Chacabuco 915, 5700 San Luis, Argentina
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44
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Chen X, Gu W, Jing X, Pan X. A NEW APPROACH FOR SYNTHESIS OF ERYTHRO 8-O-4′ NEOLIGNANS. SYNTHETIC COMMUN 2006. [DOI: 10.1081/scc-120002402] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- XiaoChuan Chen
- a Department of Chemistry , National Laboratory of Applied Organic Chemistry , Lanzhou University , Lanzhou, 730000, P. R. China
| | - WenXin Gu
- a Department of Chemistry , National Laboratory of Applied Organic Chemistry , Lanzhou University , Lanzhou, 730000, P. R. China
| | - XiaoBi Jing
- a Department of Chemistry , National Laboratory of Applied Organic Chemistry , Lanzhou University , Lanzhou, 730000, P. R. China
| | - XinFu Pan
- b Department of Chemistry , National Laboratory of Applied Organic Chemistry , Lanzhou University , Lanzhou, 730000, P. R. China
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45
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Luize PS, Ueda-Nakamura T, Dias Filho BP, Cortez DAG, Morgado-Díaz JA, de Souza W, Nakamura CV. Ultrastructural alterations induced by the neolignan dihydrobenzofuranic eupomatenoid-5 on epimastigote and amastigote forms of Trypanosoma cruzi. Parasitol Res 2006; 100:31-7. [PMID: 16783543 DOI: 10.1007/s00436-006-0241-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2006] [Accepted: 05/16/2006] [Indexed: 10/24/2022]
Abstract
Eupomatenoid-5, a compound isolated from leaves of Piper regnellii var. pallescens, showed antiprotozoal activity against the epimastigote proliferative stages and intracellular amastigote forms of Trypanosoma cruzi Y strain. Eupomatenoid-5, at 7.0 microg/ml (50% growth inhibition concentration) produced morphological changes in epimastigote forms of the parasite, such as intense cytoplasmic vacuolization, mitochondrial swelling, kinetoplast alteration, presence of myelin-like figures, and mitochondrial damage, as observed by transmission electron microscopy. In amastigote forms in LLCMK(2) cells, at 7.0-microg/ml concentration, the compound induced a decrease in the number of cells with internalized parasites and in the number of internalized parasites per LLCMK(2) cell, compared with untreated cells. Furthermore, intense cytoplasmic vacuolization and autophagic vacuoles were observed in T. cruzi intracellular amastigotes after 72 h of incubation. Scanning electron microscopy confirmed the alterations in the shape of the parasites.
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Affiliation(s)
- Patrícia Shima Luize
- Pós Graduação em Ciências Farmacêuticas, Universidade Estadual de Maringá, Avenida Colombo, 5790, BR-87020-900, Maringá, PR, Brazil
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46
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Suvire FD, Sortino M, Kouznetsov VV, Vargas M LY, Zacchino SA, Cruz UM, Enriz RD. Structure–activity relationship study of homoallylamines and related derivatives acting as antifungal agents. Bioorg Med Chem 2006; 14:1851-62. [PMID: 16289857 DOI: 10.1016/j.bmc.2005.10.036] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2005] [Revised: 10/19/2005] [Accepted: 10/20/2005] [Indexed: 11/29/2022]
Abstract
The synthesis, in vitro evaluation, and structure-activity relationship studies of homoallylamines and related derivatives acting as antifungal agents are reported. Among them, compounds N-(4-bromophenyl)-N-(2-furylmethyl)amine and N-(4-chlorophenyl)-N-(2-furylmethyl)amine reported here exhibited remarkable antifungal activity against dermatophytes. Theoretical calculations allow us to determine the minimal structural requirements to produce the antifungal response and can provide a guide for the design of compounds with these properties.
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Affiliation(s)
- Fernando D Suvire
- Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis (U.N.S.L.), Chacabuco 917, 5700 San Luis, Argentina
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47
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Yue D, Yao T, Larock RC. Synthesis of 2,3-disubstituted benzo[b]furans by the palladium-catalyzed coupling of o-iodoanisoles and terminal alkynes, followed by electrophilic cyclization. J Org Chem 2005; 70:10292-6. [PMID: 16323837 PMCID: PMC2586666 DOI: 10.1021/jo051299c] [Citation(s) in RCA: 267] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
[reaction: see text] 2,3-Disubstituted benzo[b]furans are readily prepared under very mild reaction conditions by the palladium/copper-catalyzed cross-coupling of various o-iodoanisoles and terminal alkynes, followed by electrophilic cyclization with I2, PhSeCl, or p-O2NC6H4SCl. Aryl- and vinylic-substituted alkynes undergo electrophilic cyclization in excellent yields. Biologically important furopyridines can be prepared by this approach in high yields.
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Affiliation(s)
- Dawei Yue
- Department of Chemistry, Iowa State University, Ames, IA 50011
| | - Tuanli Yao
- Department of Chemistry, Iowa State University, Ames, IA 50011
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48
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Boeck P, Leal PC, Yunes RA, Filho VC, López S, Sortino M, Escalante A, Furlán RLE, Zacchino S. Antifungal activity and studies on mode of action of novel xanthoxyline-derived chalcones. Arch Pharm (Weinheim) 2005; 338:87-95. [PMID: 15799012 DOI: 10.1002/ardp.200400929] [Citation(s) in RCA: 71] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Chalcones and chalcone-like compounds, most of them new ones, prepared by base-catalyzed condensation of appropriate aldehydes and xanthoxyline, were tested for antifungal properties against a panel of yeasts, hialohyphomycetes as well as dermatophytes with the agar dilution assay. Results indicate that neither the sole presence of a "xanthoxyline-like" substitution pattern nor a 2'-OH substituent on ring A are sufficient for these compounds to have antifungal properties. The chalcone 3-(2-chlorophenyl)-1-(2'-hydroxy-4',6'-dimethoxyphenyl)prop-2-en-1-one, with a Cl atom in the ortho position of benzene ring B showed the best antifungal activity against standardized strains of Trichophyton rubrum (MIC = 12.5 microg/mL) and inhibited all of the ten clinical isolates of T. rubrum tested (MIC at which 50 % [MIC(50)] and 90 % [MIC(90)] of the isolates were inhibited = 12.5 and 25 microg/mL). Regarding its mode of action, the Neurospora crassa assay showed a blotchy appearance in the inhibition halo produced by this chalcone, strongly suggesting that it could act by inhibiting the fungal cell wall. This chalcone seems to be an hyphal malformation inducer, since a clear curling of the hypha was observed in this hazy zone at a magnification of x 400. This work strongly contributes to the knowledge of the antifungal properties of hydroxy-chalcones.
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Affiliation(s)
- Paula Boeck
- Departamento de Química, Universidade Federal de Santa Catarina, Florianópolis, Brasil
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Bellú S, Hure E, Trapé M, Trossero C, Molina G, Drogo C, Williams PA, Atria AM, Muñoz Acevedo JC, Zacchino S, Sortino M, Campagnoli D, Rizzotto M. Synthesis, structure and antifungal properties of Co(II)–sulfathiazolate complexes. Polyhedron 2005. [DOI: 10.1016/j.poly.2004.12.017] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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50
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Giannini FA, Aimar ML, Sortino M, Gomez R, Sturniollo A, Juarez A, Zacchino S, de Rossi RH, Enriz RD. In vitro-in vivo antifungal evaluation and structure-activity relationships of 3H-1,2-dithiole-3-thione derivatives. ACTA ACUST UNITED AC 2004; 59:245-54. [PMID: 15081341 DOI: 10.1016/j.farmac.2003.08.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2003] [Accepted: 08/29/2003] [Indexed: 11/27/2022]
Abstract
As part of our project devoted to the search of new antifungal agents, we report here the in vitro-in vivo antifungal evaluations and a structure-activity relationship (SAR) study of 17 thione derivatives. Some compounds of this series exhibited remarkable antifungal activity against a broad spectrum of pathogenic opportunistic fungi. SAR studies provide a useful information for the determination of the minimum structural requirements for producing the biological response.
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Affiliation(s)
- Fernando A Giannini
- Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis (UNSL), Chacabuco y Pedernera, San Luis 5700, Argentina
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