[(2R,3R,4S,5R,6S)-6-(2-methoxy-4-prop-2-enoxycarbonylphenoxy)-3,4,5-tris(phenylmethoxy)oxan-2-yl]methyl 4-[(2S,3R,4R,5R,6R)-6-(hydroxymethyl)-3,4,5-tris(phenylmethoxy)oxan-2-yl]oxy-3,5-dimethoxybenzoate 在
四(三苯基膦)钯 、
二乙胺 作用下,
以
二氯甲烷 为溶剂,
反应 4.0h,
以87%的产率得到4-[(2S,3R,4S,5R,6R)-6-[[4-[(2S,3R,4R,5R,6R)-6-(hydroxymethyl)-3,4,5-tris(phenylmethoxy)oxan-2-yl]oxy-3,5-dimethoxybenzoyl]oxymethyl]-3,4,5-tris(phenylmethoxy)oxan-2-yl]oxy-3-methoxybenzoic acid