乙酸酐 、
6-O-trityl-α-D-glucopyranosyl 1-O-tosyl-6-O-trityl-β-D-fructofuranoside 在
吡啶 作用下,
以97%的产率得到Acetic acid (2S,3S,4R,5R)-4-acetoxy-2-(toluene-4-sulfonyloxymethyl)-2-((2R,3R,4S,5R,6R)-3,4,5-triacetoxy-6-trityloxymethyl-tetrahydro-pyran-2-yloxy)-5-trityloxymethyl-tetrahydro-furan-3-yl ester