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Anghinoni JM, Ferreira SS, Kazmierczak JC, Perin G, Penteado F, Lenardão EJ. Synthesis of Selenium-Decorated N-Oxide Isoquinolines: Arylseleninic Acids in Selenocyclization Reactions. J Org Chem 2024. [PMID: 39088563 DOI: 10.1021/acs.joc.4c00944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/03/2024]
Abstract
Herein, we describe the use of benzeneseleninic acid derivatives (BSA) as a bench-stable and easy to handle selenium reagent to access 4-(selanyl)isoquinoline-N-oxides through the selenocyclization of o-alkynyl benzaldehyde oximes. The reaction is conducted in refluxing methanol, allowing the thermal generation of electrophilic selenium species in situ. By this new protocol, a library of 19 selenium-decorated N-oxide isoquinolines was accessed in up to 96% yield with an outstanding substrate tolerance and the feasibility to scale it up 10 times (from 0.25 to 2.5 mmol).
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Affiliation(s)
- João M Anghinoni
- Centro de Ciências Químicas, Farmacêuticas e de Alimentos (CCQFA), Universidade Federal de Pelotas (UFPel), P.O. Box 354, Pelotas, 96010-900 Rio Grande do Sul, Brazil
| | - Sabrina S Ferreira
- Centro de Ciências Químicas, Farmacêuticas e de Alimentos (CCQFA), Universidade Federal de Pelotas (UFPel), P.O. Box 354, Pelotas, 96010-900 Rio Grande do Sul, Brazil
| | - Jean C Kazmierczak
- Centro de Ciências Exatas e Naturais, Departamento de Química, Universidade Federal de Santa Maria (UFSM), Av. Roraima, Building 18, Santa Maria, 97105-340 Rio Grande do Sul, Brazil
| | - Gelson Perin
- Centro de Ciências Químicas, Farmacêuticas e de Alimentos (CCQFA), Universidade Federal de Pelotas (UFPel), P.O. Box 354, Pelotas, 96010-900 Rio Grande do Sul, Brazil
| | - Filipe Penteado
- Centro de Ciências Exatas e Naturais, Departamento de Química, Universidade Federal de Santa Maria (UFSM), Av. Roraima, Building 18, Santa Maria, 97105-340 Rio Grande do Sul, Brazil
| | - Eder J Lenardão
- Centro de Ciências Químicas, Farmacêuticas e de Alimentos (CCQFA), Universidade Federal de Pelotas (UFPel), P.O. Box 354, Pelotas, 96010-900 Rio Grande do Sul, Brazil
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2
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Guan X, Li WJ, Shuai MS, Zhang M, Zhou CC, Fu XZ, Yang YY, Zhou M, He B, Zhao YL. Rh(III)-Catalyzed C7-Alkylation of Isatogens with Malonic Acid Diazoesters. J Org Chem 2024; 89:2984-2995. [PMID: 38334453 DOI: 10.1021/acs.joc.3c02405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2024]
Abstract
Rh(III)-catalyzed C7-alkylation of isatogens (indolin-3-one N-oxides) with malonic acid diazoesters has been developed. This strategy utilizes oxygen anion on the N-oxide group of isatogens as a directing group and successfully achieves the synthesis of a series of C7-alkylated isatogens with moderate to good yields (48-86% yields). Moreover, the N-oxides of isatogens can not only serve as the simple directing group for C7-H bond cleavage but also be deoxidized for easy removal.
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Affiliation(s)
- Xiang Guan
- School of Pharmacy, and Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education), Guizhou Medical University, Guiyang 550004, P.R. China
| | - Wen-Jie Li
- School of Pharmacy, and Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education), Guizhou Medical University, Guiyang 550004, P.R. China
| | - Ming-Shan Shuai
- School of Pharmacy, and Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education), Guizhou Medical University, Guiyang 550004, P.R. China
| | - Mao Zhang
- School of Pharmacy, and Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education), Guizhou Medical University, Guiyang 550004, P.R. China
| | - Chao-Chao Zhou
- School of Pharmacy, and Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education), Guizhou Medical University, Guiyang 550004, P.R. China
| | - Xiao-Zhong Fu
- School of Pharmacy, and Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education), Guizhou Medical University, Guiyang 550004, P.R. China
| | - Yuan-Yong Yang
- School of Pharmacy, and Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education), Guizhou Medical University, Guiyang 550004, P.R. China
| | - Meng Zhou
- School of Pharmacy, and Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education), Guizhou Medical University, Guiyang 550004, P.R. China
| | - Bin He
- School of Pharmacy, and Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education), Guizhou Medical University, Guiyang 550004, P.R. China
| | - Yong-Long Zhao
- School of Pharmacy, and Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education), Guizhou Medical University, Guiyang 550004, P.R. China
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3
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Debnath I, Roy T, Borah D, Mahata K. Stable peri-Naphthoisatogens without C2 Protection: Synthesis via Aldrone Condensation, Optical Properties and 1,3-Dipolar Cycloaddition Reaction. Chem Asian J 2023:e202300827. [PMID: 37929899 DOI: 10.1002/asia.202300827] [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: 09/21/2023] [Revised: 11/02/2023] [Accepted: 11/05/2023] [Indexed: 11/07/2023]
Abstract
peri-Annulation of naphthalane, an important tool for realization of wide range of functional materials, is presently accomplished with limited few functional groups like imide, amide and diamine-derivative (perimidine). To increase the diversity, we have incorporated α-keto aldonitrone as a new functional group, and herein report about five peri-naphthoisatogens (PNTIs) dyes. The synthesis were accomplished using an unusual reaction of aromatic nitro group, which is nucleophilic attack of a C-nucleophile (enol) to the N-atom of nitro group. In five different 5-alkylamino-8-nitro-1-acetylnaphthalenes, intramolecular acid-catalyzed nucleophilic attack of enol moiety to the N-atom of nitro group produced α-keto aldonitrone via addition-elimination mechanism. The PNTIs showed characteristics of 1,3-dipole and reacted with ethyl acrylate to produce isoxazolidine ring, which subsequently converted into aza phenalenone derivative via ring cleavage. Both the PNTI and the corresponding derivative strongly absorb in the visible region, displaying absorption maximum at 551 and 561 nm (in CHCl3 ) respectively. Compared to the popular analogous dye naphthalene monoimides, PNTIs showed bathochromic shift of absorption maximum by more than 100 nm. The emission maximum for the PNTI and its derivative in chloroform were observed at 594 and 635 nm respectively.
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Affiliation(s)
- Indraneel Debnath
- Department of Chemistry, Indian Institute of Technology, Guwahati, Guwahati, Assam, 781039, India
| | - Tirupati Roy
- Department of Chemistry, Indian Institute of Technology, Guwahati, Guwahati, Assam, 781039, India
| | - Dharismita Borah
- Department of Chemistry, Indian Institute of Technology, Guwahati, Guwahati, Assam, 781039, India
| | - Kingsuk Mahata
- Department of Chemistry, Indian Institute of Technology, Guwahati, Guwahati, Assam, 781039, India
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4
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Schroder V, Radu N, Cornea PC, Coman OA, Pirvu LC, Mohammed MSO, Stefaniu A, Pintilie L, Bostan M, Caramihai MD, Roman V. Studies Regarding the Antimicrobial Behavior of Clotrimazole and Limonene. Antibiotics (Basel) 2022; 11:antibiotics11121816. [PMID: 36551473 PMCID: PMC9774930 DOI: 10.3390/antibiotics11121816] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 12/06/2022] [Accepted: 12/12/2022] [Indexed: 12/23/2022] Open
Abstract
The paper presents the results of the studies performed to establish the effect of the mixtures between limonene and clotrimazole against microbial pathogens involved in dermatological diseases, such as Candida albicans, Staphyloccocus aureus, and Escherichia coli. Preliminary data obtained from the studies performed in microplates revealed a possible synergism between the mixture of clotrimazole and limonene for Staphylococcus aureus. Studies performed "in silico" with programs such as CLC Drug Discovery Workbench and MOLEGRO Virtual Docker, gave favorable scores for docking each compound on a specific binding site for each microorganism. The tests performed for validation, with the clotrimazole (0.1%) and different sources of limonene (1.9% citrus essential oils), showed a synergistic effect on Staphylococcus aureus in the case of the mixtures between clotrimazole and the essential oils of Citrus reticulata or Citrus paradisi. The studies performed on Staphylococcus aureus MRSA showed a synergistic effect between clotrimazole and the essential oils obtained from Citrus bergamia, Citrus aurantium, or Citrus paradisi. In the case of Pseudomonas aeruginosa, essential oils and clotrimazole used alone did not exhibit antimicrobial activities, but the mixtures between clotrimazole and the essential oils of Citrus bergamia or Citrus sinensis exhibited a synergistic antimicrobial effect.
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Affiliation(s)
- Verginica Schroder
- Faculty of Pharmacy, University Ovidius of Constanta, 900527 Constanta, Romania
| | - Nicoleta Radu
- Faculty of Biotechnology, University of Agronomic Sciences and Veterinary Medicine of Bucharest, 011464 Bucharest, Romania
- Department of Biotechnology, National Institute of Chemistry and Petrochemistry R&D of Bucharest, 060021 Bucharest, Romania
- Correspondence: (N.R.); (M.B.)
| | - Petruta Calina Cornea
- Faculty of Biotechnology, University of Agronomic Sciences and Veterinary Medicine of Bucharest, 011464 Bucharest, Romania
| | - Oana Andreia Coman
- Faculty of Medicine, University of Medicine and Pharmacy Carol Davila of Bucharest, 020021 Bucharest, Romania
| | - Lucia Camelia Pirvu
- Department of Pharmaceutical Biotechnology, National Institute of Chemical Pharmaceutical R&D of Bucharest, 031299 Bucharest, Romania
| | - Mohammed Shaymaa Omar Mohammed
- Faculty of Biotechnology, University of Agronomic Sciences and Veterinary Medicine of Bucharest, 011464 Bucharest, Romania
| | - Amalia Stefaniu
- Department of Pharmaceutical Biotechnology, National Institute of Chemical Pharmaceutical R&D of Bucharest, 031299 Bucharest, Romania
| | - Lucia Pintilie
- Department of Pharmaceutical Biotechnology, National Institute of Chemical Pharmaceutical R&D of Bucharest, 031299 Bucharest, Romania
| | - Marinela Bostan
- Department of Immunology, National Institute of Pathology and Biomedical Sciences R&D “Victor Babeș’’, 050096 Bucharest, Romania
- Center of Immunology, Institute of Virology Stefan S. Nicolau, 030304 Bucharest, Romania
- Correspondence: (N.R.); (M.B.)
| | - Mihai Dan Caramihai
- Faculty of Computer Sciences, Politehnica University of Bucharest, 060042 Bucharest, Romania
| | - Viviana Roman
- Center of Immunology, Institute of Virology Stefan S. Nicolau, 030304 Bucharest, Romania
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5
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Jacquart S, Girod-Fullana S, Brouillet F, Pigasse C, Siadous R, Fatnassi M, Grimoud J, Rey C, Roques C, Combes C. Injectable bone cement containing carboxymethyl cellulose microparticles as a silver delivery system able to reduce implant-associated infection risk. Acta Biomater 2022; 145:342-357. [PMID: 35429671 DOI: 10.1016/j.actbio.2022.04.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 04/06/2022] [Accepted: 04/08/2022] [Indexed: 11/16/2022]
Abstract
In the challenging quest for a solution to reduce the risk of implant-associated infections in bone substitution surgery, the use of silver ions is promising regarding its broad spectrum on planktonic, sessile as well as multiresistant bacteria. In view of controlling its delivery in situ at the desired dose, we investigated its encapsulation in carboxymethyl cellulose (CMC) microparticles by spray-drying and included the latter in the formulation of a self-setting calcium phosphate bone cement. We implemented an original step-by-step methodology starting from the in vitro study of the antibacterial properties and cytotoxicity of two silver salts of different solubility in aqueous medium and then in the cement to determine the range of silver loading able to confer anti-biofilm and non-cytotoxic properties to the biomaterial. A dose-dependent efficiency of silver was demonstrated on the main species involved in bone-implant infection (S. aureus and S. epidermidis). Loading silver in microspheres instead of loading it directly inside the cement permitted to avoid undesired silver-cement interactions during setting and led to a faster release of silver, i.e. to a higher dose released within the first days combining anti-biofilm activity and preserved cytocompatibility. In addition, a combined interest of the introduction of about 10% (w/w) silver-loaded CMC microspheres in the cement formulation was demonstrated leading to a fully injectable and highly porous (77%) cement, showing a compressive strength analogous to cancellous bone. This injectable silver-loaded biomimetic composite cement formulation constitutes a versatile bone substitute material with tunable drug delivery properties, able to fight against bone implant associated infection. STATEMENT OF SIGNIFICANCE: This study is based on two innovative scientific aspects regarding the literature: i) Choice of silver ions as antibacterial agent combined with their way of incorporation: Carboxymethylcellulose has never been tested into bone cement to control its drug loading and release properties. ii) Methodology to formulate an antibacterial and injectable bone cement: original and multidisciplinary step-by-step methodology to first define, through (micro)biological tests on two silver salts with different solubilities, the targeted range of silver dose to include in carboxymethylcellulose microspheres and, then optimization of silver-loaded microparticles processing to fulfill requirements (encapsulation efficiency and size). The obtained fully injectable composite controls the early delivery of active dose of silver (from 3 h and over 2 weeks) able to fight against bone implant-associated infections.
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Affiliation(s)
- Sylvaine Jacquart
- CIRIMAT, Université de Toulouse, CNRS, Toulouse INP - ENSIACET, Toulouse, France
| | - Sophie Girod-Fullana
- CIRIMAT, Université de Toulouse, CNRS, Université Toulouse 3 - Paul Sabatier, Toulouse, France
| | - Fabien Brouillet
- CIRIMAT, Université de Toulouse, CNRS, Université Toulouse 3 - Paul Sabatier, Toulouse, France
| | - Christel Pigasse
- Laboratoire de Génie Chimique, Université de Toulouse, CNRS, INPT, Université Toulouse 3 - Paul Sabatier, Toulouse, France
| | - Robin Siadous
- Université de Bordeaux, Inserm U1026 Bioingénierie Tissulaire (BioTis), Bordeaux, France
| | - Mohamed Fatnassi
- CIRIMAT, Université de Toulouse, CNRS, Toulouse INP - ENSIACET, Toulouse, France
| | - Julien Grimoud
- Laboratoire de Génie Chimique, Université de Toulouse, CNRS, INPT, Université Toulouse 3 - Paul Sabatier, Toulouse, France
| | - Christian Rey
- CIRIMAT, Université de Toulouse, CNRS, Toulouse INP - ENSIACET, Toulouse, France
| | - Christine Roques
- Laboratoire de Génie Chimique, Université de Toulouse, CNRS, INPT, Université Toulouse 3 - Paul Sabatier, Toulouse, France; CHU Toulouse, Hôpital Purpan, Service de Bactériologie-Hygiène, Toulouse, France
| | - Christèle Combes
- CIRIMAT, Université de Toulouse, CNRS, Toulouse INP - ENSIACET, Toulouse, France.
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6
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Belova NV, Sliznev VV, Oberhammer H. Theoretical insights into the nature of the semipolar bonds X-O (X=N, P). J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.132409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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7
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Xu H, Ye M, Yang K, Song Q. Regioselective Cross-Coupling of Isatogens with Boronic Acids to Construct 2,2-Disubstituted Indolin-3-one Derivatives. Org Lett 2021; 23:7776-7780. [PMID: 34617759 DOI: 10.1021/acs.orglett.1c02808] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Herein we present a transition-metal-free cross-coupling reaction of isatogens with boronic acids through a 1,4-metalate shift of a boron "ate" complex. This coupling reaction provides a feasible method to deliver valuable 2,2-disubstituted indolin-3-one derivatives with excellent regioselectivity, which exhibit operational simplicity, good functional group tolerance, and a broad substrate scope.
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Affiliation(s)
- Hetao Xu
- Key Laboratory of Molecule Synthesis and Function Discovery, Fujian Province University, College of Chemistry at Fuzhou University, Fuzhou, Fujian 350108, China
| | - Mingxing Ye
- Key Laboratory of Molecule Synthesis and Function Discovery, Fujian Province University, College of Chemistry at Fuzhou University, Fuzhou, Fujian 350108, China
| | - Kai Yang
- Key Laboratory of Molecule Synthesis and Function Discovery, Fujian Province University, College of Chemistry at Fuzhou University, Fuzhou, Fujian 350108, China
| | - Qiuling Song
- Key Laboratory of Molecule Synthesis and Function Discovery, Fujian Province University, College of Chemistry at Fuzhou University, Fuzhou, Fujian 350108, China.,Institute of Next Generation Matter Transformation, College of Materials Science Engineering at Huaqiao University, 668 Jimei Boulevard, Xiamen, Fujian 361021, China.,Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China
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8
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Xie L, Li Y, Dong S, Feng X, Liu X. Catalytic asymmetric formal [3+2] cycloaddition of isatogens with azlactones to construct indolin-3-one derivatives. Chem Commun (Camb) 2021; 57:239-242. [DOI: 10.1039/d0cc06418a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A number of enantioenriched indolin-3-one derivatives were readily obtained by chiral guanidine-catalyzed [3+2] cycloaddition of isatogens with azlactones.
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Affiliation(s)
- Lihua Xie
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Yi Li
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Shunxi Dong
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
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9
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Araujo DR, Goulart HA, Barcellos AM, Cargnelutti R, Lenardão EJ, Perin G. Oxone-Promoted Synthesis of 4-(Chalcogenyl)isoquinoline- N-oxides from Alkynylbenzaldoximes and Diorganyl Dichalcogenides. J Org Chem 2020; 86:1721-1729. [PMID: 33382609 DOI: 10.1021/acs.joc.0c02525] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
We report a protocol for the synthesis of 3-organyl-4-(organylchalcogenyl)isoquinoline-2-oxides via electrophilic cyclization between alkynylbenzaldoximes and diorganyl dichalcogenides promoted by Oxone. A total of 21 3-organyl-4-(organylchalcogenyl)isoquinoline-2-oxides were selectively obtained in yields of up 93% under an ultrasound irradiation condition in short reaction times (10-70 min). Additionally, the synthetic usefulness of the 3-phenyl-4-(phenylselanyl)isoquinoline-2-oxide was demonstrated in the annulation reaction with 1-(2-bromophenyl)-3-phenylprop-2-yn-1-one and in the deoxygenation reaction with phenylboronic acid.
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Affiliation(s)
- Daniela R Araujo
- Laboratório de Síntese Orgânica Limpa - LASOL, CCQFA, Universidade Federal de Pelotas - UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil
| | - Helen A Goulart
- Laboratório de Síntese Orgânica Limpa - LASOL, CCQFA, Universidade Federal de Pelotas - UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil
| | - Angelita M Barcellos
- Laboratório de Síntese Orgânica Limpa - LASOL, CCQFA, Universidade Federal de Pelotas - UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil
| | - Roberta Cargnelutti
- Departamento de Química, CCNE, Universidade Federal de Santa Maria - UFSM, 97105-900 Santa Maria, RS, Brazil
| | - Eder J Lenardão
- Laboratório de Síntese Orgânica Limpa - LASOL, CCQFA, Universidade Federal de Pelotas - UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil
| | - Gelson Perin
- Laboratório de Síntese Orgânica Limpa - LASOL, CCQFA, Universidade Federal de Pelotas - UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil
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10
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Synthesis, molecular docking, and in silico ADME/Tox profiling studies of new 1-aryl-5-(3-azidopropyl)indol-4-ones: Potential inhibitors of SARS CoV-2 main protease. Bioorg Chem 2020; 106:104497. [PMID: 33261847 PMCID: PMC7683933 DOI: 10.1016/j.bioorg.2020.104497] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 10/13/2020] [Accepted: 11/19/2020] [Indexed: 12/12/2022]
Abstract
The virus SARS CoV-2, which causes the respiratory infection COVID-19, continues its spread across the world and to date has caused more than a million deaths. Although COVID-19 vaccine development appears to be progressing rapidly, scientists continue the search for different therapeutic options to treat this new illness. In this work, we synthesized five new 1-aryl-5-(3-azidopropyl)indol-4-ones and showed them to be potential inhibitors of the SARS CoV-2 main protease (3CLpro). The compounds were obtained in good overall yields and molecular docking indicated favorable binding with 3CLpro. In silico ADME/Tox profile of the new compounds were calculated using the SwissADME and pkCSM-pharmacokinetics web tools, and indicated adequate values of absorption, distribution and excretion, features related to bioavailability. Moreover, low values of toxicity were indicated for these compounds. And drug-likeness levels of the compounds were also predicted according to the Lipinski and Veber rules.
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11
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Akulov A, Varaksin MV, Charushin VN, Chupakhin ON. Direct Functionalization of C(sp 2)-H Bond in Nonaromatic Azaheterocycles: Palladium-Catalyzed Cross-Dehydrogenative Coupling (CDC) of 2 H-Imidazole 1-Oxides with Pyrroles and Thiophenes. ACS OMEGA 2019; 4:825-834. [PMID: 31459361 PMCID: PMC6648547 DOI: 10.1021/acsomega.8b02916] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Accepted: 12/26/2018] [Indexed: 05/26/2023]
Abstract
The C(sp2)-H bond functionalization methodology was first applied to carry out the palladium-catalyzed oxidative C-H/C-H coupling reactions of 2H-imidazole 1-oxides with pyrroles and thiophenes. As a result, a number of novel 5-heteroarylated 2H-imidazole 1-oxides, which are of particular interest in the design of bioactive molecules and advanced materials, have been synthesized in yields up to 78%. The detailed H/D-exchange experiments have also been performed to elucidate some mechanistic features of this cross-dehydrogenative coupling process.
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Affiliation(s)
- Alexey
A. Akulov
- Department
of Organic & Biomolecular Chemistry, Ural Federal University, 19 Mira Street, 620002 Ekaterinburg, Russia
| | - Mikhail V. Varaksin
- Department
of Organic & Biomolecular Chemistry, Ural Federal University, 19 Mira Street, 620002 Ekaterinburg, Russia
- Institute
of Organic Synthesis, Ural Branch of the
Russian Academy of Sciences, 22 S. Kovalevskaya Street, 620041 Ekaterinburg, Russia
| | - Valery N. Charushin
- Department
of Organic & Biomolecular Chemistry, Ural Federal University, 19 Mira Street, 620002 Ekaterinburg, Russia
- Institute
of Organic Synthesis, Ural Branch of the
Russian Academy of Sciences, 22 S. Kovalevskaya Street, 620041 Ekaterinburg, Russia
| | - Oleg N. Chupakhin
- Department
of Organic & Biomolecular Chemistry, Ural Federal University, 19 Mira Street, 620002 Ekaterinburg, Russia
- Institute
of Organic Synthesis, Ural Branch of the
Russian Academy of Sciences, 22 S. Kovalevskaya Street, 620041 Ekaterinburg, Russia
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12
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Guo L, Tang B, Nie R, Liu Y, Lv S, Wang H, Guo L, Hai L, Wu Y. C–H alkenylation/cyclization and sulfamidation of 2-phenylisatogens using N-oxide as a directing group. Chem Commun (Camb) 2019; 55:10623-10626. [PMID: 31429452 DOI: 10.1039/c9cc05719f] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Ru(ii)-Catalyzed C–H alkenylation/cyclization and Ir(iii)-catalyzed C–H sulfamidation provided indol-3-one derivatives and sulfamidated 2-phenylisatogens respectively, with good yields and excellent functional group tolerance.
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Affiliation(s)
- Lingmei Guo
- Key Laboratory of Drug Targeting and Drug Delivery System of Education Ministry
- Department of Medicinal Chemistry
- West China School of Pharmacy
- Sichuan University
- Chengdu
| | - Baolan Tang
- Key Laboratory of Drug Targeting and Drug Delivery System of Education Ministry
- Department of Medicinal Chemistry
- West China School of Pharmacy
- Sichuan University
- Chengdu
| | - Ruifang Nie
- Key Laboratory of Drug Targeting and Drug Delivery System of Education Ministry
- Department of Medicinal Chemistry
- West China School of Pharmacy
- Sichuan University
- Chengdu
| | - Yanzhao Liu
- Key Laboratory of Drug Targeting and Drug Delivery System of Education Ministry
- Department of Medicinal Chemistry
- West China School of Pharmacy
- Sichuan University
- Chengdu
| | - Shan Lv
- Key Laboratory of Drug Targeting and Drug Delivery System of Education Ministry
- Department of Medicinal Chemistry
- West China School of Pharmacy
- Sichuan University
- Chengdu
| | - Huijing Wang
- Skaggs School of Pharmacy and Pharmaceutical Sciences
- University of California San Diego
- La Jolla
- USA
| | - Li Guo
- Key Laboratory of Drug Targeting and Drug Delivery System of Education Ministry
- Department of Medicinal Chemistry
- West China School of Pharmacy
- Sichuan University
- Chengdu
| | - Li Hai
- Key Laboratory of Drug Targeting and Drug Delivery System of Education Ministry
- Department of Medicinal Chemistry
- West China School of Pharmacy
- Sichuan University
- Chengdu
| | - Yong Wu
- Key Laboratory of Drug Targeting and Drug Delivery System of Education Ministry
- Department of Medicinal Chemistry
- West China School of Pharmacy
- Sichuan University
- Chengdu
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13
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Le TG, Kundu A, Ghoshal A, Nguyen NH, Preston S, Jiao Y, Ruan B, Xue L, Huang F, Keiser J, Hofmann A, Chang BCH, Garcia-Bustos J, Wells TNC, Palmer MJ, Jabbar A, Gasser RB, Baell JB. Structure–Activity Relationship Studies of Tolfenpyrad Reveal Subnanomolar Inhibitors of Haemonchus contortus Development. J Med Chem 2018; 62:1036-1053. [DOI: 10.1021/acs.jmedchem.8b01789] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Thuy G. Le
- Medicinal Chemistry, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Melbourne, Victoria 3052, Australia
| | - Abhijit Kundu
- TCG Lifesciences Private Limited, Block BN, Plot 7, Salt-Lake Electronics Complex, Sector V, Kolkata 700091, West Bengal, India
| | - Atanu Ghoshal
- TCG Lifesciences Private Limited, Block BN, Plot 7, Salt-Lake Electronics Complex, Sector V, Kolkata 700091, West Bengal, India
| | - Nghi H. Nguyen
- Medicinal Chemistry, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Melbourne, Victoria 3052, Australia
| | - Sarah Preston
- Department of Veterinary Biosciences, Melbourne Veterinary School, Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville, Melbourne, Victoria 3010, Australia
- School of Health and Life Sciences, Federation University, Ballarat, Victoria 3353, Australia
| | - Yaqing Jiao
- Department of Veterinary Biosciences, Melbourne Veterinary School, Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville, Melbourne, Victoria 3010, Australia
| | - Banfeng Ruan
- Medicinal Chemistry, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Melbourne, Victoria 3052, Australia
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, P. R. China
| | - Lian Xue
- School of Pharmaceutical Sciences, Nanjing Tech University, No. 30, South Puzhu Road, Nanjing 211816, P. R. China
| | - Fei Huang
- School of Pharmaceutical Sciences, Nanjing Tech University, No. 30, South Puzhu Road, Nanjing 211816, P. R. China
| | - Jennifer Keiser
- Swiss Tropical and Public Health Institute, 4051 Basel, Switzerland
- University of Basel, 4001 Basel, Switzerland
| | - Andreas Hofmann
- Griffith Institute for Drug Discovery, Griffith University, Nathan, Brisbane, Queensland 4111, Australia
| | - Bill C. H. Chang
- Department of Veterinary Biosciences, Melbourne Veterinary School, Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville, Melbourne, Victoria 3010, Australia
| | - Jose Garcia-Bustos
- Department of Veterinary Biosciences, Melbourne Veterinary School, Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville, Melbourne, Victoria 3010, Australia
| | | | | | - Abdul Jabbar
- Department of Veterinary Biosciences, Melbourne Veterinary School, Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville, Melbourne, Victoria 3010, Australia
| | - Robin B. Gasser
- Department of Veterinary Biosciences, Melbourne Veterinary School, Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville, Melbourne, Victoria 3010, Australia
| | - Jonathan B. Baell
- School of Pharmaceutical Sciences, Nanjing Tech University, No. 30, South Puzhu Road, Nanjing 211816, P. R. China
- Medicinal Chemistry, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Melbourne, Victoria 3052, Australia
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14
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Synthesis of isatin-conjugated 3H-indole-N-oxides and their serendipitous conversion to spiroindolenines. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.03.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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15
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Ramdane F, Essid R, Mkadmini K, Hammami M, Fares N, Mahammed MH, El Ouassis D, Tabbene O, Limam F, Ould Hadj MD. Phytochemical composition and biological activities of Asteriscus graveolens (Forssk) extracts. Process Biochem 2017. [DOI: 10.1016/j.procbio.2017.03.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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16
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Brochot A, Guilbot A, Haddioui L, Roques C. Antibacterial, antifungal, and antiviral effects of three essential oil blends. Microbiologyopen 2017; 6. [PMID: 28296357 PMCID: PMC5552930 DOI: 10.1002/mbo3.459] [Citation(s) in RCA: 78] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2016] [Revised: 01/09/2017] [Accepted: 01/25/2017] [Indexed: 01/01/2023] Open
Abstract
New agents that are effective against common pathogens are needed particularly for those resistant to conventional antimicrobial agents. Essential oils (EOs) are known for their antimicrobial activity. Using the broth microdilution method, we showed that (1) two unique blends of Cinnamomum zeylanicum, Daucus carota, Eucalyptus globulus and Rosmarinus officinalis EOs (AB1 and AB2; cinnamon EOs from two different suppliers) were active against the fourteen Gram‐positive and ‐negative bacteria strains tested, including some antibiotic‐resistant strains. Minimal inhibitory concentrations (MICs) ranged from 0.01% to 3% v/v with minimal bactericidal concentrations from <0.01% to 6.00% v/v; (2) a blend of Cinnamomum zeylanicum, Daucus carota, Syzygium aromaticum, Origanum vulgare EOs was antifungal to the six Candida strains tested, with MICs ranging from 0.01% to 0.05% v/v with minimal fungicidal concentrations from 0.02% to 0.05% v/v. Blend AB1 was also effective against H1N1 and HSV1 viruses. With this dual activity, against H1N1 and against S. aureus and S. pneumoniae notably, AB1 may be interesting to treat influenza and postinfluenza bacterial pneumonia infections. These blends could be very useful in clinical practice to combat common infections including those caused by microorganisms resistant to antimicrobial drugs.
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Affiliation(s)
| | | | | | - Christine Roques
- Fonderephar, Toulouse Cedex 09, France.,Laboratoire de Génie Chimique UMR 5503, Faculté des Sciences Pharmaceutiques, Université Paul Sabatier, Toulouse, France
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17
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Muthusamy S, Balasubramani A, Suresh E. Boron Trifluoride-Catalyzed Synthesis of 3-Alkylidene-3H-indoleN-OxidesviaTandem Reaction of Propargylic Alcohols and Nitrosobenzenes. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201601151] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
| | | | - Eringathodi Suresh
- Analytical Discipline and Centralized Instrumentation Facility; Central Salt & Marine Chemicals Research Institute; Bhavnagar - 364002 India
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18
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Tomek P, Palmer BD, Flanagan JU, Sun C, Raven EL, Ching LM. Discovery and evaluation of inhibitors to the immunosuppressive enzyme indoleamine 2,3-dioxygenase 1 (IDO1): Probing the active site-inhibitor interactions. Eur J Med Chem 2016; 126:983-996. [PMID: 28011425 DOI: 10.1016/j.ejmech.2016.12.029] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2016] [Revised: 11/30/2016] [Accepted: 12/12/2016] [Indexed: 01/21/2023]
Abstract
High expression of the immunosuppressive enzyme, indoleamine 2,3-dioxygenase 1 (IDO1) for a broad range of malignancies is associated with poor patient prognosis, and the enzyme is a validated target for cancer intervention. To identify novel IDO1 inhibitors suitable for drug development, 1597 compounds in the National Cancer Institute Diversity Set III library were tested for inhibitory activity against recombinant human IDO1. We retrieved 35 hits that inhibited IDO1 activity >50% at 20 μM. Five structural filters and the PubChem Bioassay database were used to guide the selection of five inhibitors with IC50 between 3 and 12 μM for subsequent experimental evaluation. A pyrimidinone scaffold emerged as being the most promising. It showed excellent cell penetration, negligible cytotoxicity and passed four out of the five structural filters applied. To evaluate the importance of Ser167 and Cys129 residues in the IDO1 active site for inhibitor binding, the entire NCI library was subsequently screened against alanine-replacement mutant enzymes of these two residues. The results established that Ser167 but not Cys129 is important for inhibitory activity of a broad range of IDO1 inhibitors. Structure-activity-relationship studies proposed substituents interacting with Ser167 on four investigated IDO1 inhibitors. Three of these four Ser167 interactions associated with an increased IDO1 inhibition and were correctly predicted by molecular docking supporting Ser167 as an important mediator of potency for IDO1 inhibitors.
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Affiliation(s)
- Petr Tomek
- Auckland Cancer Society Research Centre, Faculty of Medical and Health Sciences, University of Auckland, New Zealand, Private Bag 92019, Victoria Street West, Auckland, New Zealand
| | - Brian D Palmer
- Auckland Cancer Society Research Centre, Faculty of Medical and Health Sciences, University of Auckland, New Zealand, Private Bag 92019, Victoria Street West, Auckland, New Zealand
| | - Jack U Flanagan
- Auckland Cancer Society Research Centre, Faculty of Medical and Health Sciences, University of Auckland, New Zealand, Private Bag 92019, Victoria Street West, Auckland, New Zealand
| | - Chuanwen Sun
- Auckland Cancer Society Research Centre, Faculty of Medical and Health Sciences, University of Auckland, New Zealand, Private Bag 92019, Victoria Street West, Auckland, New Zealand
| | - Emma L Raven
- Department of Chemistry, University of Leicester, University Road, Leicester LE1 7RH, United Kingdom
| | - Lai-Ming Ching
- Auckland Cancer Society Research Centre, Faculty of Medical and Health Sciences, University of Auckland, New Zealand, Private Bag 92019, Victoria Street West, Auckland, New Zealand.
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19
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Kirk NS, Sansom GN, Sudta P, Suksamrarn S, Willis AC, Bremner JB, Kelso MJ. Unexpected synthesis of 3-imino-2-(pyrrol-2-yl) isatogen derivatives affords facile access to a 2-pyrrolyl isatogen. SYNTHETIC COMMUN 2016. [DOI: 10.1080/00397911.2016.1249290] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Nicholas S. Kirk
- Illawarra Health and Medical Research Institute, School of Chemistry, University of Wollongong, Australia
| | - Geraud N. Sansom
- Illawarra Health and Medical Research Institute, School of Chemistry, University of Wollongong, Australia
| | - Pichit Sudta
- Division of Chemistry, Phetchaburi Rajabhat University, Phetchaburi, Thailand
- Department of Chemistry, Srinakharinwirot University, Bangkok, Thailand
| | - Sunit Suksamrarn
- Department of Chemistry, Srinakharinwirot University, Bangkok, Thailand
| | - Anthony C. Willis
- Single Crystal X-ray Diffraction Unit, Research School of Chemistry, Australian National University, Canberra, Australia
| | - John B. Bremner
- Illawarra Health and Medical Research Institute, School of Chemistry, University of Wollongong, Australia
| | - Michael J. Kelso
- Illawarra Health and Medical Research Institute, School of Chemistry, University of Wollongong, Australia
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20
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Shafi S, Afrin F, Islamuddin M, Chouhan G, Ali I, Naaz F, Sharma K, Zaman MS. β-Nitrostyrenes as Potential Anti-leishmanial Agents. Front Microbiol 2016; 7:1379. [PMID: 27635124 PMCID: PMC5007854 DOI: 10.3389/fmicb.2016.01379] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Accepted: 08/19/2016] [Indexed: 12/20/2022] Open
Abstract
Development of new therapeutic approach to treat leishmaniasis has become a priority. In the present study, the antileishmanial effect of β-nitrostyrenes was investigated against in vitro promastigotes and amastigotes. A series of β-nitrostyrenes have been synthesized by using Henry reaction and were evaluated for their antimicrobial activities by broth microdilution assay and in vitro antileishmanial activities against Leishmania donovani promastigotes by following standard guidelines. The most active compounds were futher evaluated for their in vitro antileishmanial activities against intracellular amastigotes. Among the tested β-nitrostyrenes, compounds 7, 8, 9, 12, and 17 exhibited potential activities (MICs range, 0.25–8 μg/mL) against clinically significant human pathogenic fungi. However, the microbactericidal concentrations (MBCs) and the microfungicidal concentrations (MFCs) were found to be either similar or only two-fold greater than the MICs. Anti-leishmanial results demonstrated that compounds 9, 12, 14, and 18 were found to be most active among the tested samples and exhibited 50% inhibitory concentration (IC50) by 23.40 ± 0.71, 37.83 ± 3.74, 40.50 ± 1.47, 55.66 ± 2.84 nM against L. donovani promastigotes and 30.5 ± 3.42, 21.46 ± 0.96, 26.43 ± 2.71, and 61.63 ± 8.02 nM respectively against intracellular L. donovani promastigotes amastigotes respectively which are comparable with standard AmB (19.60 ± 1.71 nM against promastigotes and 27.83 ± 3.26 nM against amastigotes). Compounds 9, 12, 14, and 18 were found to have potent in vitro leishmanicidal activity against L. donovani and found to be non-toxic against mammalian macrophages even at a concentration of 25 μM. Nitric oxide (NO) estimation studies reveals that these compounds are moderately inducing NO levels.
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Affiliation(s)
- Syed Shafi
- Medicinal Chemistry Lab, Department of Chemistry, Faculty of Science, Hamdard University New Delhi, India
| | - Farhat Afrin
- Department of Medical Laboratories Technology, Faculty of Applied Medical Sciences, Taibah UniversityMedina, Saudi Arabia; Parasite Immunology Lab, Department of Biotechnology, Faculty of Science, Hamdard UniversityNew Delhi, India
| | - Mohammad Islamuddin
- Parasite Immunology Lab, Department of Biotechnology, Faculty of Science, Hamdard UniversityNew Delhi, India; Molecular Virology and Vaccinology Lab, Department of Biotechnology, Faculty of Science, Hamdard UniversityNew Delhi, India
| | - Garima Chouhan
- Parasite Immunology Lab, Department of Biotechnology, Faculty of Science, Hamdard University New Delhi, India
| | - Intzar Ali
- Membrane Biology Laboratory, School of Life Sciences, Jawaharlal Nehru University New Delhi, India
| | - Faatima Naaz
- Medicinal Chemistry Lab, Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Jamia Hamdard New Delhi, India
| | - Kalicharan Sharma
- Medicinal Chemistry Lab, Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Jamia Hamdard New Delhi, India
| | - Mohammad S Zaman
- Medicinal Chemistry Lab, Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Jamia Hamdard New Delhi, India
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21
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Yang Y, Wang X, Li Y, Zhou B. A [4+1] Cyclative Capture Approach to 3H-Indole-N-oxides at Room Temperature by Rhodium(III)-Catalyzed CH Activation. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201508702] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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22
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Yang Y, Wang X, Li Y, Zhou B. A [4+1] Cyclative Capture Approach to 3
H
‐Indole‐
N
‐oxides at Room Temperature by Rhodium(III)‐Catalyzed CH Activation. Angew Chem Int Ed Engl 2015; 54:15400-4. [DOI: 10.1002/anie.201508702] [Citation(s) in RCA: 107] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2015] [Indexed: 01/19/2023]
Affiliation(s)
- Yaxi Yang
- Department of Medicinal Chemistry, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Shanghai 201203 (PR China)
| | - Xuan Wang
- Department of Medicinal Chemistry, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Shanghai 201203 (PR China)
| | - Yuanchao Li
- Department of Medicinal Chemistry, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Shanghai 201203 (PR China)
| | - Bing Zhou
- Department of Medicinal Chemistry, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Shanghai 201203 (PR China)
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23
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Ibrahim N, Ibrahim H, Dormoi J, Briolant S, Pradines B, Moreno A, Mazier D, Legrand P, Nepveu F. Albumin-bound nanoparticles of practically water-insoluble antimalarial lead greatly enhance its efficacy. Int J Pharm 2014; 464:214-24. [PMID: 24412521 DOI: 10.1016/j.ijpharm.2014.01.001] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2013] [Revised: 12/28/2013] [Accepted: 01/02/2014] [Indexed: 01/08/2023]
Abstract
We recently showed that the indolone-N-oxides can be promising candidates for the treatment of chloroquine-resistant malaria. However, the in vivo assays have been hampered by the very poor aqueous solubility of these compounds resulting in poor and variable activity. Here, we describe the preparation, characterization and in vivo evaluation of biodegradable albumin-bound indolone-N-oxide nanoparticles. Nanoparticles were prepared by precipitation followed by high-pressure homogenization and characterized by photon correlation spectroscopy, transmission electron microscopy, differential scanning calorimetry and X-ray powder diffraction. The process was optimized to yield nanoparticles of controllable diameter with narrow size distribution suitable for intravenous administration, which guarantees direct drug contact with parasitized erythrocytes. Stable nanoparticles showed greatly enhanced dissolution rate (complete drug release within 30 min compared to 1.5% of pure drug) preserving the rapid antimalarial activity. The formulation achieved complete cure of Plasmodium berghei-infected mice at 25mg/kg with parasitemia inhibition (99.1%) comparable to that of artesunate and chloroquine and was remarkably more effective in prolonging survival time and inhibiting recrudescence. In 'humanized' mice infected with Plasmodium falciparum, the same dose proved to be highly effective: with parasitemia reduced by 97.5% and the mean survival time prolonged. This formulation can help advance the preclinical trials of indolone-N-oxides. Albumin-bound nanoparticles represent a new strategic approach to use this most abundant plasma protein to target malaria-infected erythrocytes.
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Affiliation(s)
- Nehal Ibrahim
- Université de Toulouse, UPS, UMR 152 (Laboratoire de pharmacochimie et pharmacologie pour le développement, Pharma-DEV), F-31062 Toulouse cedex 9, France; IRD, UMR 152, F-31062 Toulouse cedex 9, France
| | - Hany Ibrahim
- Université de Toulouse, UPS, UMR 152 (Laboratoire de pharmacochimie et pharmacologie pour le développement, Pharma-DEV), F-31062 Toulouse cedex 9, France; IRD, UMR 152, F-31062 Toulouse cedex 9, France.
| | - Jerome Dormoi
- Unité de Parasitologie, Institut de Recherche Biomédicale des Armées (IRBA), Le Pharo, 13262 Marseille, France; Unité de Recherche Maladies Infectieuses et Tropicales Emergentes (URMITE), Faculté de Médecine La Timone, Université Aix-Marseille, 13385 Marseille cedex 5, France
| | - Sébastien Briolant
- Unité de Parasitologie, Institut de Recherche Biomédicale des Armées (IRBA), Le Pharo, 13262 Marseille, France; Unité de Recherche Maladies Infectieuses et Tropicales Emergentes (URMITE), Faculté de Médecine La Timone, Université Aix-Marseille, 13385 Marseille cedex 5, France
| | - Bruno Pradines
- Unité de Parasitologie, Institut de Recherche Biomédicale des Armées (IRBA), Le Pharo, 13262 Marseille, France; Unité de Recherche Maladies Infectieuses et Tropicales Emergentes (URMITE), Faculté de Médecine La Timone, Université Aix-Marseille, 13385 Marseille cedex 5, France
| | - Alicia Moreno
- Université Pierre et Marie Curie-Paris 6, UMR S945, Paris, France; Institut National de la Santé et de la Recherche Médicale, U945, Paris, France
| | - Dominique Mazier
- Université Pierre et Marie Curie-Paris 6, UMR S945, Paris, France; Institut National de la Santé et de la Recherche Médicale, U945, Paris, France; AP-HP, Groupe Hospitalier Pitié-Salpêtrière, Service Parasitologie-Mycologie, Paris, France
| | - Philippe Legrand
- Institut Charles-Gerhardt, UMR 5253 CNRS/UM2/ENSCM/UM1, 8 rue de l'école Normale, 34296 Montpellier cedex 05, France
| | - Françoise Nepveu
- Université de Toulouse, UPS, UMR 152 (Laboratoire de pharmacochimie et pharmacologie pour le développement, Pharma-DEV), F-31062 Toulouse cedex 9, France; IRD, UMR 152, F-31062 Toulouse cedex 9, France
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24
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Hameau A, Collière V, Grimoud J, Fau P, Roques C, Caminade AM, Turrin CO. PPH dendrimers grafted on silica nanoparticles: surface chemistry, characterization, silver colloids hosting and antibacterial activity. RSC Adv 2013. [DOI: 10.1039/c3ra43348j] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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