乙酸酐 、
3-{(3R,4S)-7-Hydroxy-4-[4-hydroxy-5-((R)-7-hydroxy-chroman-3-yl)-2-methoxy-phenyl]-chroman-3-yl}-6-methoxy-benzene-1,2-diol 在
吡啶 作用下,
以23 mg的产率得到Acetic acid 2-acetoxy-6-{(3R,4S)-7-acetoxy-4-[4-acetoxy-5-((R)-7-acetoxy-chroman-3-yl)-2-methoxy-phenyl]-chroman-3-yl}-3-methoxy-phenyl ester