((5R，6S，6aR)-6-(benzyloxy)-5-((benzyloxy)methyl)-2，2-dimethyltetrahydrofuro[2，3-d][1，3]dioxol-5-yl)methanol

((5R，6S，6aR)-6-(benzyloxy)-5-((benzyloxy)methyl)-2，2-dimethyltetrahydrofuro[2，3-d][1，3]dioxol-5-yl)methanol 95%