Efficient syntheses of β-cyanosugars using glycosyl iodides derived from per-O-silylated mono- and disaccharides

被引:69
作者
Bhat, AS [1 ]
Gervay-Hague, J [1 ]
机构
[1] Univ Arizona, Dept Chem, Tucson, AZ 85721 USA
关键词
D O I
10.1021/ol0160405
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
[GRAPHICS] Reported herein is a general method for the efficient syntheses of a variety of beta -cyano glycosides through the activation of per-O-trimethylsllyl glycosides with TMSI to form alpha -glycosyl iodides, which undergo S(N)2-type displacement when treated with tetrabutylammonium cyanide. The cyanoglycosides were reduced under mild conditions using NaBH4 in the presence of catalytic CoCl2(H2O)(6) in THF/H2O to give the corresponding aminomethyl glycosides.
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页码:2081 / 2084
页数:4
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