Fucosyl phosphites

Glycosylation using Galactosyl and Fucosyl Phosphites with a Benzyl Group at C-2... 

GDP-fucose is a glycosyl donor substrate for fucosyltransferases. Although it has been synthesized by many chemical methods [47], the use of fucosyl phosphite in the synthesis seems the most practical [48]. A recent improvement of this method includes the addition of tetrazole to the morpholidate coupling reaction [48b]. This method might also be applicable to the synthesis of other nucleoside diphosphate sugars (Figure 18). 

Fucosylation using fucosyl dibenzyl phosphites has been reported in the synthesis of Le and Le catalyzed by TfOH [31], The phosphite and trichloroacetimidate... 

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