在
gold(III) bromide 作用下,
以
乙腈 为溶剂,
反应 20.0h,
以67%的产率得到[(2R,3R,4S,5R,6S)-4,5-dibenzoyloxy-6-[[(1R,2R,3S,4R,5R)-2,3-bis(phenylmethoxy)-6,8-dioxabicyclo[3.2.1]octan-4-yl]oxy]-3-[(2S,3R,4S,5S,6R)-3,4,5-tribenzoyloxy-6-(benzoyloxymethyl)oxan-2-yl]oxyoxan-2-yl]methyl benzoate