ethyl 2,3,4,6-tetra-O-benzyl-1-thio-D-mannopyranoside 、
3-hydroxypropyl 2,3,4,6-tetra-O-(3-hydroxypropyl)-β-D-glucopyranoside 在
N-碘代丁二酰亚胺 、
silver trifluoromethanesulfonate 作用下,
以
乙腈 为溶剂,
反应 0.5h,
以9%的产率得到[3-(2,3,4,6-tetra-O-benzyl-D-mannopyranosyloxy)propyl] 2,3,4,6-tetra-O-[3-(2,3,4,6-tetra-O-benzyl-D-mannopyranosyloxy)propyl]-β-D-glucopyranoside