hexa-O-acetyl-D-lactal 、
5-hydroxy-7-(3-hydroxypropyloxy)-3-(4-hydroxyphenyl)chromen-4-one 在
indium(III) chloride 作用下,
以
乙腈 为溶剂,
反应 2.0h,
以78%的产率得到(2R,3S,4S,5R,6R)-2-(acetoxymethyl)-6-(((2R,3S,6S)-2-(acetoxymethyl)-6-(3-((5-hydroxy-3-(4-hydroxyphenyl)-4-oxo-4H-chromen-7-yl)oxy)propoxy)-3,6-dihydro-2H-pyran-3-yl)oxy)tetrahydro-2H-pyran-3,4,5-triyl triacetate