Nucleosides 8 [18]: Ribosylation of Fused Quinazolines—Synthesis of New [1,2,4]Triazolo[5,1-b]- and [1,2,4]Triazino[3,2-b]quinazoline Nucleosides of Fluorescence Interest

[1,2,4]Triazolo[5,1-b]- and [1,2,4]triazino[3,2-b] quinazolines have been ribosylated by coupling with 1-O-acetyl-2,3,5-tri-O-benzoyl-β-D-ribofuranose and by using the silylation method, followed by debenzoylation by methanolic sodium methoxide to afford the corresponding free N-nucleosides. Nucleos...

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Main Authors: Laila Mohamed Break, Mosselhi Abdelnabi Mosselhi, Nagi Mohamed Elshafai
Format: Article
Language:English
Published: Wiley 2013-01-01
Series:Journal of Chemistry
Online Access:http://dx.doi.org/10.1155/2013/612756
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author Laila Mohamed Break
Mosselhi Abdelnabi Mosselhi
Nagi Mohamed Elshafai
author_facet Laila Mohamed Break
Mosselhi Abdelnabi Mosselhi
Nagi Mohamed Elshafai
author_sort Laila Mohamed Break
collection DOAJ
description [1,2,4]Triazolo[5,1-b]- and [1,2,4]triazino[3,2-b] quinazolines have been ribosylated by coupling with 1-O-acetyl-2,3,5-tri-O-benzoyl-β-D-ribofuranose and by using the silylation method, followed by debenzoylation by methanolic sodium methoxide to afford the corresponding free N-nucleosides. Nucleosides obtained have been identified by their spectral analysis. From the UV-visible and fluorescence studies of some nucleosides synthesized, it is found that they have fluorescence properties.
format Article
id doaj-art-bbb1085cb1b048ce81cf91a2c63f25a1
institution Kabale University
issn 2090-9063
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language English
publishDate 2013-01-01
publisher Wiley
record_format Article
series Journal of Chemistry
spelling doaj-art-bbb1085cb1b048ce81cf91a2c63f25a12025-02-03T01:32:02ZengWileyJournal of Chemistry2090-90632090-90712013-01-01201310.1155/2013/612756612756Nucleosides 8 [18]: Ribosylation of Fused Quinazolines—Synthesis of New [1,2,4]Triazolo[5,1-b]- and [1,2,4]Triazino[3,2-b]quinazoline Nucleosides of Fluorescence InterestLaila Mohamed Break0Mosselhi Abdelnabi Mosselhi1Nagi Mohamed Elshafai2Department of Chemistry, Faculty of Science (Girls), Taif University, P.O. Box 58, Taif, Saudi ArabiaDepartment of Chemistry, Faculty of Science, Taif University, Taif 888, Saudi ArabiaDepartment of Chemistry, Faculty of Science, Kafr El-Sheikh University, Kafr El-Sheikh City, Egypt[1,2,4]Triazolo[5,1-b]- and [1,2,4]triazino[3,2-b] quinazolines have been ribosylated by coupling with 1-O-acetyl-2,3,5-tri-O-benzoyl-β-D-ribofuranose and by using the silylation method, followed by debenzoylation by methanolic sodium methoxide to afford the corresponding free N-nucleosides. Nucleosides obtained have been identified by their spectral analysis. From the UV-visible and fluorescence studies of some nucleosides synthesized, it is found that they have fluorescence properties.http://dx.doi.org/10.1155/2013/612756
spellingShingle Laila Mohamed Break
Mosselhi Abdelnabi Mosselhi
Nagi Mohamed Elshafai
Nucleosides 8 [18]: Ribosylation of Fused Quinazolines—Synthesis of New [1,2,4]Triazolo[5,1-b]- and [1,2,4]Triazino[3,2-b]quinazoline Nucleosides of Fluorescence Interest
Journal of Chemistry
title Nucleosides 8 [18]: Ribosylation of Fused Quinazolines—Synthesis of New [1,2,4]Triazolo[5,1-b]- and [1,2,4]Triazino[3,2-b]quinazoline Nucleosides of Fluorescence Interest
title_full Nucleosides 8 [18]: Ribosylation of Fused Quinazolines—Synthesis of New [1,2,4]Triazolo[5,1-b]- and [1,2,4]Triazino[3,2-b]quinazoline Nucleosides of Fluorescence Interest
title_fullStr Nucleosides 8 [18]: Ribosylation of Fused Quinazolines—Synthesis of New [1,2,4]Triazolo[5,1-b]- and [1,2,4]Triazino[3,2-b]quinazoline Nucleosides of Fluorescence Interest
title_full_unstemmed Nucleosides 8 [18]: Ribosylation of Fused Quinazolines—Synthesis of New [1,2,4]Triazolo[5,1-b]- and [1,2,4]Triazino[3,2-b]quinazoline Nucleosides of Fluorescence Interest
title_short Nucleosides 8 [18]: Ribosylation of Fused Quinazolines—Synthesis of New [1,2,4]Triazolo[5,1-b]- and [1,2,4]Triazino[3,2-b]quinazoline Nucleosides of Fluorescence Interest
title_sort nucleosides 8 18 ribosylation of fused quinazolines synthesis of new 1 2 4 triazolo 5 1 b and 1 2 4 triazino 3 2 b quinazoline nucleosides of fluorescence interest
url http://dx.doi.org/10.1155/2013/612756
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AT mosselhiabdelnabimosselhi nucleosides818ribosylationoffusedquinazolinessynthesisofnew124triazolo51band124triazino32bquinazolinenucleosidesoffluorescenceinterest
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