3,4,6-tri-o-benzoyl-1,2-o-propynylorthobenzoyl-β-D-mannopyranose 、
methyl 2,3-di-O-benzyl-4-O-propargyl-α-D-glucopyranoside 在
gold(III) bromide 作用下,
以
二氯甲烷 为溶剂,
反应 2.0h,
以66%的产率得到(2R,3R,4S,5S,6S)-2-((benzoyloxy)methyl)-6-(((2R,3R,4S,5R,6S)-4,5-bis(benzyloxy)-6-methoxy-3-(prop-2-yn-1-yloxy)tetrahydro-2H-pyran-2-yl)methoxy)tetrahydro-2H-pyran-3,4,5-triyl tribenzoate