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Faculty of Sciences
Document Details
Document Type
:
Article In Journal
Document Title
:
Synthesis and characterization of new chromogenic substrates for exoglycosidases: alpha-glucosidase, alpha-mannosidase, and beta-galactosidase
Synthesis and characterization of new chromogenic substrates for exoglycosidases: alpha-glucosidase, alpha-mannosidase, and beta-galactosidase
Document Language
:
English
Abstract
:
Glycosides of 4-nitrocatechol (1,2-dihydroxy 4-nitrobenzene) with alpha-D-glucopyranose and alpha-D-mannopyranose were synthesized by the glycosylation of phenol with peracetylated sugars in the presence of BF3 center dot OBu2. The glycoside of 4-nitrocatechol with beta-D-galactopyranose was prepared by the glycosylation of this phenol as sodium phenoxide with tetra-O-benzoyl-alpha-D-galactopyranosyl bromide. The structure of the reaction products was confirmed by H-1 and C-13 NMR spectra and by chemical analysis. The latter consisted of acidic hydrolysis, followed by ethyl ether extraction and colorimetric determination of 4-nitrocatechol in the ether phase and application of the anthrone method for the sugar in the water phase. The synthetic glycosides were tested as substrates for enzymes from animal, vegetal, and microbial materials.
ISSN
:
1300-0527
Journal Name
:
TURKISH JOURNAL OF CHEMISTRY
Volume
:
37
Issue Number
:
2
Publishing Year
:
1434 AH
2013 AD
Article Type
:
Article
Added Date
:
Sunday, July 23, 2017
Researchers
Researcher Name (Arabic)
Researcher Name (English)
Researcher Type
Dr Grade
Email
D Iga
Iga, D
Researcher
R Schmidt
Schmidt, R
Researcher
S Iga
Iga, S
Researcher
c Hotoleanu
Hotoleanu, c
Researcher
f Duica
Duica, f
Researcher
A Nicolescu
Nicolescu, A
Researcher
S Gitman
Gitman, S
Researcher
Files
File Name
Type
Description
42164.pdf
pdf
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