Direct aqueous synthesis of cyanomethyl thioglycosides from reducing sugars; ready access to reagents for protein glycosylation

被引:25
|
作者
Alexander, Stewart R. [1 ]
Fairbanks, Antony J. [1 ,2 ]
机构
[1] Univ Canterbury, Dept Chem, Private Bag 4800, Christchurch 8140, New Zealand
[2] Univ Canterbury, Biomol Interact Ctr, Private Bag 4800, Christchurch 8140, New Zealand
关键词
BOVINE SERUM-ALBUMIN; 2-CHLORO-1,3-DIMETHYLIMIDAZOLINIUM CHLORIDE; 2-IMINO-2-METHOXYETHYL; 1-THIOGLYCOSIDES; UNPROTECTED SUGARS; NEOGLYCOPROTEINS; WATER; GLYCOPROTEINS; STRATEGY; PRODRUG; LIVER;
D O I
10.1039/c6ob01069e
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Unprotected carbohydrates can be directly converted into cyanomethyl thioglycosides in a completely stereoselective manner by reaction with 2-chloro-1,3-dimethylimidazolinium chloride (DMC) and mercaptoacetonitrile in aqueous solution in the presence of triethylamine. Reaction with methoxide provides 2-imino-2-methoxyethyl (IME) thioglycosides, which may be used directly for the glycosylation of surface protein lysine residues.
引用
收藏
页码:6679 / 6682
页数:4
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