4'-(((2R,3S,4S,5S,6R)-3-((benzyloxy)methyl)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)-N,3'-dimethyl-[1,1'-biphenyl]-3-carboxamide 、 [(2R,3R,4S,5S)-3,4,5,6-tetraacetoxy-4-methyl-tetrahydropyran-2-yl]methyl acetate 以
乙酸乙酯 、
1,2-二氯乙烷 为溶剂,
以50%的产率得到[(2R,3R,4S,5S,6R)-3,4,5-triacetoxy-4-methyl-6-[2-methyl-4-[3-(methylcarbamoyl)phenyl]phenoxy]tetrahydropyran-2-yl]methyl acetate