2'-(benzyloxycarbonyl)benzyl (2,3,5-tri-O-benzoyl-β-D-galactofuranosyl)-(1->5)-2,3-di-O-benzoyl-6-O-benzyl-β-D-galactofuranoside 、
2'-carboxybenzyl (2,3,5-tri-O-benzoyl-6-O-t-butyldimethylsilyl-β-D-galactofuranosyl)-(1->5)-2,3-di-O-benzoyl-6-O-benzyl-β-D-galactofuranoside 以27%的产率得到2'-(benzyloxycarbonyl)benzyl (2,3,5-tri-O-benzoyl-6-O-t-butyldimethylsilyl-β-D-galactofuranosyl)-(1->5)-(2,3-di-O-benzoyl-6-O-benzyl-β-D-galactofuranosyl)-(1->6)-(2,3,5-tri-O-benzoyl-β-D-galactofuranosyl)-(1->5)-2,3-di-O-benzoyl-6-O-benzyl-β-D-galactofuranoside