p-tolyl N-benzyl-2-amino-2,3-N,O-carbonyl-4,6-O-diacetyl-2-deoxy-1-thio-β-D-glucopyranoside 、
methyl 2,3,4-tri-O-benzyl-α-D-galactopyranoside 在
N-碘代丁二酰亚胺 、
silver trifluoromethanesulfonate 作用下,
以
二氯甲烷 为溶剂,
以70%的产率得到((3aR,4S,6R,7S,7aR)-7-acetoxy-3-benzyl-2-oxo-4-(((2R,3S,4S,5R,6S)-3,4,5-tris(benzyloxy)-6-methoxytetrahydro-2H-pyran-2-yl)methoxy)hexahydro-4H-pyrano[3,4-d]oxazol-6-yl)methyl acetate