Acetic acid (2R,3R,4S,5S,6S)-4,5-diacetoxy-6-[(2R,3R,4S,5S,6S)-3,4,5-triacetoxy-6-(2,2,2-trichloro-ethoxy)-tetrahydro-pyran-2-ylmethoxy]-2-trityloxymethyl-tetrahydro-pyran-3-yl ester 在
溶剂黄146 作用下,
反应 6.0h,
以100%的产率得到Acetic acid (2R,3R,4S,5S,6S)-3,5-diacetoxy-2-((2S,3S,4S,5R,6R)-3,4,5-triacetoxy-6-hydroxymethyl-tetrahydro-pyran-2-yloxymethyl)-6-(2,2,2-trichloro-ethoxy)-tetrahydro-pyran-4-yl ester