Acetic acid (2S,3R,4S,5S,6R)-3-acetoxy-6-acetoxymethyl-2-methoxy-5-((2S,3R,4S,5S,6R)-3,4,5-triacetoxy-6-ethynyl-tetrahydro-pyran-2-yloxy)-tetrahydro-pyran-4-yl ester 在
Lindlar's catalyst
喹啉 、
氢气 作用下,
以
乙酸乙酯 为溶剂,
反应 2.0h,
以80%的产率得到Acetic acid (2S,3R,4S,5S,6R)-3-acetoxy-6-acetoxymethyl-2-methoxy-5-((2S,3R,4S,5S,6R)-3,4,5-triacetoxy-6-vinyl-tetrahydro-pyran-2-yloxy)-tetrahydro-pyran-4-yl ester