Green ultrasound-assisted three-component click synthesis of novel 1H-1,2,3-triazole carrying benzothiazoles and fluorinated-1,2,4-triazole conjugates and their antimicrobial evaluation

The present study describes an efficient and ecofriendly, ultrasound, one-pot click cycloaddition approach for the construction of a novel series of 1,4-disubstituted-1,2,3-triazoles tethered with fluorinated 1,2,4-triazole-benzothiazole molecular conjugates. It involved three-component condensation...

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Main Authors: Rezki Nadjet, Aouad Mohamed Reda
Format: Article
Language:English
Published: Sciendo 2017-09-01
Series:Acta Pharmaceutica
Subjects:
Online Access:https://doi.org/10.1515/acph-2017-0024
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author Rezki Nadjet
Aouad Mohamed Reda
author_facet Rezki Nadjet
Aouad Mohamed Reda
author_sort Rezki Nadjet
collection DOAJ
description The present study describes an efficient and ecofriendly, ultrasound, one-pot click cycloaddition approach for the construction of a novel series of 1,4-disubstituted-1,2,3-triazoles tethered with fluorinated 1,2,4-triazole-benzothiazole molecular conjugates. It involved three-component condensation of the appropriate bromoacetamide benzothiazole, sodium azide and 4-alkyl/aryl-5-(2-fluorophenyl)-3-(prop-2-ynylthio)-1,2,4-triazoles 4a-e through a Cu(I)-catalyzed 1,3-dipolar cycloaddition reaction. This approach involves in situ generation of azidoacetamide benzothiazole, followed by condensation with terminal alkynes in the presence of CuSO4/Na-ascorbate in aqueous DMSO under both conventional and ultrasound conditions. Some of the designed 1,2,3-triazole conjugates 6a-o were recognized for their antimicrobial activity against some bacterial and fungal pathogenic strains.
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spelling doaj.art-c7da837a2324430e84fd334a487ef7852022-12-21T21:26:52ZengSciendoActa Pharmaceutica1846-95582017-09-0167330932410.1515/acph-2017-0024acph-2017-0024Green ultrasound-assisted three-component click synthesis of novel 1H-1,2,3-triazole carrying benzothiazoles and fluorinated-1,2,4-triazole conjugates and their antimicrobial evaluationRezki Nadjet0Aouad Mohamed Reda1Department of Chemistry, Faculty of Sciences, Taibah University, PO Box 344, Al-Madinah, Al-Munawarah, Saudi ArabiaDepartment of Chemistry, Faculty of Sciences, Taibah University, PO Box 344, Al-Madinah, Al-Munawarah, Saudi ArabiaThe present study describes an efficient and ecofriendly, ultrasound, one-pot click cycloaddition approach for the construction of a novel series of 1,4-disubstituted-1,2,3-triazoles tethered with fluorinated 1,2,4-triazole-benzothiazole molecular conjugates. It involved three-component condensation of the appropriate bromoacetamide benzothiazole, sodium azide and 4-alkyl/aryl-5-(2-fluorophenyl)-3-(prop-2-ynylthio)-1,2,4-triazoles 4a-e through a Cu(I)-catalyzed 1,3-dipolar cycloaddition reaction. This approach involves in situ generation of azidoacetamide benzothiazole, followed by condensation with terminal alkynes in the presence of CuSO4/Na-ascorbate in aqueous DMSO under both conventional and ultrasound conditions. Some of the designed 1,2,3-triazole conjugates 6a-o were recognized for their antimicrobial activity against some bacterial and fungal pathogenic strains.https://doi.org/10.1515/acph-2017-0024benzothiazoles1,2,3-triazoles1,2,4-triazolesclick synthesisantimicrobial
spellingShingle Rezki Nadjet
Aouad Mohamed Reda
Green ultrasound-assisted three-component click synthesis of novel 1H-1,2,3-triazole carrying benzothiazoles and fluorinated-1,2,4-triazole conjugates and their antimicrobial evaluation
Acta Pharmaceutica
benzothiazoles
1,2,3-triazoles
1,2,4-triazoles
click synthesis
antimicrobial
title Green ultrasound-assisted three-component click synthesis of novel 1H-1,2,3-triazole carrying benzothiazoles and fluorinated-1,2,4-triazole conjugates and their antimicrobial evaluation
title_full Green ultrasound-assisted three-component click synthesis of novel 1H-1,2,3-triazole carrying benzothiazoles and fluorinated-1,2,4-triazole conjugates and their antimicrobial evaluation
title_fullStr Green ultrasound-assisted three-component click synthesis of novel 1H-1,2,3-triazole carrying benzothiazoles and fluorinated-1,2,4-triazole conjugates and their antimicrobial evaluation
title_full_unstemmed Green ultrasound-assisted three-component click synthesis of novel 1H-1,2,3-triazole carrying benzothiazoles and fluorinated-1,2,4-triazole conjugates and their antimicrobial evaluation
title_short Green ultrasound-assisted three-component click synthesis of novel 1H-1,2,3-triazole carrying benzothiazoles and fluorinated-1,2,4-triazole conjugates and their antimicrobial evaluation
title_sort green ultrasound assisted three component click synthesis of novel 1h 1 2 3 triazole carrying benzothiazoles and fluorinated 1 2 4 triazole conjugates and their antimicrobial evaluation
topic benzothiazoles
1,2,3-triazoles
1,2,4-triazoles
click synthesis
antimicrobial
url https://doi.org/10.1515/acph-2017-0024
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