(R)-1-{(2R,5S,2'S,5'R)-5'-[(4S,5S,6R)-6-((R)-2-Benzyloxy-1-methyl-ethyl)-2,2,5-trimethyl-[1,3]dioxan-4-ylmethyl]-5,2'-dimethyl-octahydro-[2,2']bifuranyl-5-yl}-ethanol 生成 (2R)-2-[(4R,5S,6S)-6-[[(2R,5S)-5-[(2R,5S)-5-[(1R)-1-hydroxyethyl]-5-methyloxolan-2-yl]-5-methyloxolan-2-yl]methyl]-2,2,5-trimethyl-1,3-dioxan-4-yl]propan-1-ol