(2R,3S,4R,5S,6S)-2-(acetoxymethyl)-6-((E)-2-(3-(hydroxymethyl)phenyl)-4-methoxy-4-oxobut-2-en-1-yl)tetrahydro-2H-pyran-3,4,5-triyl triacetate 在
sodium methylate 作用下,
以
甲醇 为溶剂,
反应 24.0h,
以95%的产率得到methyl (E)-3-[3-(hydroxymethyl)phenyl]-4-[(2S,3R,4R,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]but-2-enoate