SYNTHESIS AND H-1-NMR CHARACTERIZATION OF THE 6 ISOMERIC MONO-O-SULFATES OF 8-METHOXYCARBONYLOCT-1-YL O-BETA-D-GALACTOPYRANOSYL-(1-]4)-2-ACETAMIDO-2-DEOXY-BETA-D-GLUCOPYRANOSIDE

被引:29
|
作者
FIELD, RA [1 ]
OTTER, A [1 ]
FU, WY [1 ]
HINDSGAUL, O [1 ]
机构
[1] UNIV ALBERTA,DEPT CHEM,EDMONTON,AB T6G 2G2,CANADA
基金
加拿大自然科学与工程研究理事会;
关键词
N-ACETYLLACTOSAMINE; SULFATED OLIGOSACCHARIDES; H-1; NMR;
D O I
10.1016/0008-6215(95)00235-L
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
All six isomeric mono-O-sulfates of beta-D-Galp-(1-->4)-beta-D-GlcpNAc-O-(CH2)(8)COOMe (LacNAc-MCO) have been chemically synthesized and characterized by high resolution (1)HNMR spectroscopy. Sulfation causes characteristic substitution-site-specific downfield shifts of H-1 NMR signals. The C-4(1) chair conformation of both pyranose residues of LacNAc are unaffected by mono-O-sulfation, and, with the exception of the 3-O-sulfate derivative, glycosidic torsion angles are also unaffected.
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页码:347 / 363
页数:17
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