(2R,3S,4S,5R,6S)-2-(acetoxymethyl)-6-(((2R,3R,4S,5R,6R)-4,5-diacetoxy-2-(acetoxymethyl)-6-(2-(2-(2-(2-(adamantan-1-yloxy)ethoxy)ethoxy)ethoxy)ethoxy)tetrahydro-2H-pyran-3-yl)oxy)tetrahydro-2H-pyran-3,4,5-triyl triacetate 在
甲醇 、
sodium methylate 作用下,
以65%的产率得到(2S,3R,4S,5R,6R)-2-[(2R,3S,4R,5R,6R)-6-[2-[2-[2-[2-(1-adamantyloxy)ethoxy]ethoxy]ethoxy]ethoxy]-4,5-dihydroxy-2-(hydroxymethyl)oxan-3-yl]oxy-6-(hydroxymethyl)oxane-3,4,5-triol