Synthesis of a heptasaccharide fragment of the O-deacetylated GXM of C. neoformans serotype C

β-D-Xylp-(1→2)-α-D-Manp-(1→3)-[β-D-Xylp-(1→2)][β-D-Xylp-(1→4)]-α-D-Manp-(1→3)-[β-D-Xylp-(1→4)]-α-D-Manp-1-OMe