Exploiting utoxycarbonyl)-2-(tert-butyldimethylsiloxy)pyrrole (TBSOP)
as a masked glycine anion equivalent, a short enantiospecific synthesi
s of the title C-glycosyl alpha-aminoacid 5 was devised and executed,
via diastereospecific alpha-C-glycosylation of protected arabinose 1 a
t the anomeric carbon.