ethyl 2-O-benzoyl-4,6-O-benzylidene-3-O-(2-methylnaphthyl)-1-thio-β-D-glucopyranoside 、
benzyl 2-O-benzoyl-4,6-O-benzylidene-β-D-glucopyroanosyl-(1->3)-2-O-benzoyl-4,6-O-benzylidene-β-D-glucopyranosyl-(1->3)-2-O-benzoyl-4,6-O-benzylidene-β-D-glucopyranosyl-(1->3)-2-O-benzoyl-4,6-O-benzylidene-β-D-glucopyranoside 在
N-碘代丁二酰亚胺 、 tin(II) trifluoromethanesulfonate 作用下,
以74%的产率得到benzyl 2-O-benzoyl-4,6-O-benzylidene-3-O-(2-methylnaphthyl)-β-D-glucopyranosyl-(1->3)-2-O-benzoyl-4,6-O-benzylidene-β-D-glucopyranosyl-(1->3)-2-O-benzoyl-4,6-O-benzylidene-β-D-glucopyranosyl-(1->3)-2-O-benzoyl-4,6-O-benzylidene-β-D-glucopyranosyl-(1->3)-2-O-benzoyl-4,6-O-benzylidene-β-D-glucopyranoside