Synthesis and biological evaluation of mannosyl triazoles and varying the nature of substituents on the terminal phthalimido moiety in the aglycone backbone

In the present study, a facile synthesis of six monovalent α-d-mannoside ligands terminated with phthalimido moiety by Cu(I) catalyzed azide-alkyne cycloaddition reaction (CuAAC) has been achieved. All synthesized ligands were tested for their inhibitory activities against E. coli FimH adhesion usin...

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Main Authors: Hussein Al-Mughaid, Younis Jaradat, Maha Khazaaleh
Format: Article
Language:English
Published: Elsevier 2022-01-01
Series:Results in Chemistry
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2211715622002673
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author Hussein Al-Mughaid
Younis Jaradat
Maha Khazaaleh
author_facet Hussein Al-Mughaid
Younis Jaradat
Maha Khazaaleh
author_sort Hussein Al-Mughaid
collection DOAJ
description In the present study, a facile synthesis of six monovalent α-d-mannoside ligands terminated with phthalimido moiety by Cu(I) catalyzed azide-alkyne cycloaddition reaction (CuAAC) has been achieved. All synthesized ligands were tested for their inhibitory activities against E. coli FimH adhesion using hemagglutination inhibition (HAI) assay and showed inhibitory activity in the range of HAI = 4.8–23.5 µM comparing with 2-azidoethyl α-d-mannopyranoside 17 as the standard ligand (HAI = 135 µM). Among them, ligand 21 (R = NO2), displayed the best activity (HAI = 4.8 µM) which was approximately 28 times more potent than the reference ligand 17. Thus confirming the beneficial effect of lipophilic interactions between the aromatic aglycone and the tyrosine gate of FimH. We feel that our lead ligand will be a good platform for identification of more potent FimH inhibitors.
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spelling doaj.art-575c0f23e1ce407fafa0656658976e002022-12-22T04:41:09ZengElsevierResults in Chemistry2211-71562022-01-014100548Synthesis and biological evaluation of mannosyl triazoles and varying the nature of substituents on the terminal phthalimido moiety in the aglycone backboneHussein Al-Mughaid0Younis Jaradat1Maha Khazaaleh2Corresponding author.; Department of Chemistry, Jordan University of Science and Technology, PO Box 3030, Irbid 22110, JordanDepartment of Chemistry, Jordan University of Science and Technology, PO Box 3030, Irbid 22110, JordanDepartment of Chemistry, Jordan University of Science and Technology, PO Box 3030, Irbid 22110, JordanIn the present study, a facile synthesis of six monovalent α-d-mannoside ligands terminated with phthalimido moiety by Cu(I) catalyzed azide-alkyne cycloaddition reaction (CuAAC) has been achieved. All synthesized ligands were tested for their inhibitory activities against E. coli FimH adhesion using hemagglutination inhibition (HAI) assay and showed inhibitory activity in the range of HAI = 4.8–23.5 µM comparing with 2-azidoethyl α-d-mannopyranoside 17 as the standard ligand (HAI = 135 µM). Among them, ligand 21 (R = NO2), displayed the best activity (HAI = 4.8 µM) which was approximately 28 times more potent than the reference ligand 17. Thus confirming the beneficial effect of lipophilic interactions between the aromatic aglycone and the tyrosine gate of FimH. We feel that our lead ligand will be a good platform for identification of more potent FimH inhibitors.http://www.sciencedirect.com/science/article/pii/S22117156220026731,2,3-triazoleHemagglutinationMannoconjugateUrinary tract infection
spellingShingle Hussein Al-Mughaid
Younis Jaradat
Maha Khazaaleh
Synthesis and biological evaluation of mannosyl triazoles and varying the nature of substituents on the terminal phthalimido moiety in the aglycone backbone
Results in Chemistry
1,2,3-triazole
Hemagglutination
Mannoconjugate
Urinary tract infection
title Synthesis and biological evaluation of mannosyl triazoles and varying the nature of substituents on the terminal phthalimido moiety in the aglycone backbone
title_full Synthesis and biological evaluation of mannosyl triazoles and varying the nature of substituents on the terminal phthalimido moiety in the aglycone backbone
title_fullStr Synthesis and biological evaluation of mannosyl triazoles and varying the nature of substituents on the terminal phthalimido moiety in the aglycone backbone
title_full_unstemmed Synthesis and biological evaluation of mannosyl triazoles and varying the nature of substituents on the terminal phthalimido moiety in the aglycone backbone
title_short Synthesis and biological evaluation of mannosyl triazoles and varying the nature of substituents on the terminal phthalimido moiety in the aglycone backbone
title_sort synthesis and biological evaluation of mannosyl triazoles and varying the nature of substituents on the terminal phthalimido moiety in the aglycone backbone
topic 1,2,3-triazole
Hemagglutination
Mannoconjugate
Urinary tract infection
url http://www.sciencedirect.com/science/article/pii/S2211715622002673
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AT younisjaradat synthesisandbiologicalevaluationofmannosyltriazolesandvaryingthenatureofsubstituentsontheterminalphthalimidomoietyintheaglyconebackbone
AT mahakhazaaleh synthesisandbiologicalevaluationofmannosyltriazolesandvaryingthenatureofsubstituentsontheterminalphthalimidomoietyintheaglyconebackbone