乙酸酐 、
(2R,3R,4S,5S,6R)-2-[(R)-4-((R)-3-Hydroxy-but-1-ynyl)-3,5,5-trimethyl-cyclohex-3-enyloxy]-6-hydroxymethyl-tetrahydro-pyran-3,4,5-triol 在
吡啶 作用下,
以91%的产率得到Acetic acid (2R,3R,4S,5R,6R)-4,5-diacetoxy-2-[(R)-4-((R)-3-acetoxy-but-1-ynyl)-3,5,5-trimethyl-cyclohex-3-enyloxy]-6-acetoxymethyl-tetrahydro-pyran-3-yl ester