The first protection/deprotection-free process for radical C-glycosylation has been achieved through one-step preparable glycosyl dithiocarbamates (GDTCs). The Giese-type reaction and radical allylation of unprotected GDTCs were successfully performed to obtain the corresponding α-C-glycosides stereoselectively under mild reaction conditions.
SYNTHESIS OF A CARBOHYDRATE-CENTERED C-GLYCOSIDE CLUSTER1
作者:Michael Dubber、Thisbe Lindhorst
DOI:10.1081/car-100108288
日期:——
O-glycosides can be employed in the design of carbohydrate-based antiadhesives. Here we present the synthesis of the first carbohydrate-centered C-glycoside cluster (5) using two spacer-modified carbohydrate derivatives (1 and 4) and peptide coupling in the ligation step. Two possible pathways for the synthesis of peptide bond-ligated glycoclusters can be envisaged. Either an oligocarboxylic acid is employed