155197-37-8Relevant articles and documents
A direct method for β-selective glycosylation with an N-acetylglucosamine donor armed by a 4-O-TBDMS protecting group
Tanaka, Hidenori,Hamaya, Yu,Kotsuki, Hiyoshizo
, (2017)
A new direct method for β-selective glycosylation with an N-acetylglucosamine (GlcNAc) donor was developed. This substrate, which can be readily prepared from commercially available GlcNAc in two steps, contains a 4-O-tert-butyldimethylsilyl (TBDMS) protecting group as a key component. We found that this functionality could have a favorable effect on the reactivity of the GlcNAc donor. Glycosylation with the armed donor using primary alcohols in the presence of a catalytic amount of trimethylsilyl trifluoromethanesulfonate (TMSOTf) in 1,2-dichloroethane smoothly gave the desired coupling products in good yields with complete β-selectivity, while sterically hindered acceptors were less efficient.
Synthesis of β-glycosides of N-acetylglucosamine in the presence of HgI2
Zemlyakov,Kur'yanov,Chirva
, p. 352 - 355 (2007/10/03)
The use of HgI2 as catalyst in the synthesis of trans-glycosides of N-acetylglucosamine is described. Using this catalyst, β-glycosides of N-acetylglucosamine with aglycons of different structures and lyophilicities have been synthesized. The p
NEW METHOD FOR THE SYNTHESIS OF 2-METHYLGLYCO-2-OXAZOLINES FROM ANOMERIC MIXTURES OF THE PERACETATES OF AMINOSUGARS
Pertel', S. S.,Chirva, V. Ya.
, p. 867 - 869 (2007/10/02)
2-Methylglyco-2-oxazolines, which are reagents for the synthesis of 1,2-trans-N-acetylhexosaminides from the anomeric mixture of aminosugar acetates, are formed from the peracetates of aminosugars by the action of a Lewis acid in the presence of a