(2R,3R,4R,5R,6R)-6-(4-Methoxy-benzyloxymethyl)-2-(2-trimethylsilanyl-ethoxy)-5-((2R,3S,4S,5R,6R)-3,4,5-tris-benzyloxy-6-benzyloxymethyl-tetrahydro-pyran-2-yloxy)-tetrahydro-pyran-3,4-diol 、
ethyl 2,3,4,6-tetra-O-benzyl-α-D-mannopyranosyl-(1->3)-4-O-acetyl-2,6-di-O-benzoyl-1-thio-β-D-galactopyranoside 在
MS 4 Angstroem 、
DMTST 作用下,
以
二氯甲烷 为溶剂,
以81%的产率得到2-(trimethylsilyl)ethyl 2,3,4,6-tetra-O-benzyl-α-D-mannopyranosyl-(1->3)-4-O-acetyl-2,6-di-O-benzoyl-β-D-galactopyranosyl-(1->3)-[2,3,4,6-tetra-O-benzyl-α-D-mannopyranosyl-(1->4)]-6-O-(4-methoxybenzyl)-β-D-galactopyranoside